Document 44DVYK90zNoZ3J8Mm78Qop6Bj

1 IPT COMPANION MANUAL i <r ifi *~ <t >~ lC Z fv. LU (\ c u_ c5 CC o ECOLOGY AREA IPT COMPANION MANUAL PURPOSE: To aid you with the IPT modules and try to give a process description of the Ecology Area so that you may be better able to operate this area safely and efficiently. TABLE OF CONTENTS PAGE NO. General Process Description................................. Trench Collection and Distribution Section Tanks and Vessels-------------------------------------Valves........................................................................ Mechanical Equipment....................... ................. Instrumentation...................................................... Hazards and Protection...................................... D-803 A/B Section Tanks and Vessels..........-.................................. Valves............................................................ Mechanical Equipment--.................................. Instrumentation........................... Hazards and Protection....................................- WP-800 Section Tanks and Vessels....................................... Valves........................................... .......... -............... Mechanical Equipment......................................... Instrumentation...................................................... Hazards and Protection-.................................... Operating Discipline........................................... 3-4 5 5-6 7 7-8 8 9 10-11 11 11-12 12-13 14-15 15-16 17 17-19 19-20 20 CONTROLLED COPY H:J2JECT TO UPDATE 1 DO 127546 CONFIDENT TAl ECOLOGY AREA IPT COMPANION MANUAL PURPOSE: To aid you with the IPT modules and try to give a process description of the Ecology Area so that you may be better able to operate this area safely and efficiently. TABLE OF CONTENTS PAGE NO. General Process Description....................................... Trench Collection and Distribution Section Tanks and Vessels.............................................. Valves--............................................................. ...... Mechanical Equipment....................................... Instrumentation...................................................... Hazards and Protection.................................... 3-4 5 5-6 7 7-8 8 D-803 A/B Section Tanks and Vessels.............................................Valves..............................................................-........ Mechanical Equipment......................................... Instrumentation........................................................... Hazards and Protection................................... WP-800 Section Tanks and Vessels................................................... Valves............................................ -.......................... Mechanical Equipment......................................... Instrumentation........................................... Hazards and Protection........................................... Operating Discipline---....................................... 9 10-11 11 11-12 12-13 14-15 15-16 17 19-20 20 17-19 CONTROLLED COPY rU2JECT TO UPDATE DO 127547 CONFIDENTIAL ECOLOGY AREA IPT COMPANION MANUAL PURPOSE: To aid you with the IPT modules and try to give a process description of the Ecology Area so that you may be better able to operate this area safely and efficiently. TABLE OF CONTENTS PAQENQ. General Process Description...................................... Trench Collection and Distribution Section Tanks and Vessels........................................-- Valves........................................................................ Mechanical Equipment......................................... Instrumentation....................... ............................... Hazards and Protection--................................. 3-4 5 5-6 7 7-8 8 D-803 A/B Section Tanks and Vessels.............................................. Valves........... -...................---................................. Mechanical Equipment............................. -......... Instrumentation........................................ ............. Hazards and Protection................................... . WP-800 Section Tanks and Vessels.............................................. Valves........................................................................ Mechanical Equipment.......... .............................. Instrumentation........... -......................................... Hazards and Protection................................. . Operating Discipline................................ ........... 9 10-11 11 11-12 12-13 14-15 15-16 17 17-19 19-20 20 CONTROLLED COPY TJ2JECT TO UPDATE DO 127548 CQNFIDFNTTAL T. S. S. Section Tanks and Vessels.............................................. Valves........................................................................ Mechanical Equipment......................................... Instrumentation...................................................... Hazards and Protection................................ Low Pressure Scrubber Section Tanks and Vessels.............................................. Valves..................................-.................................... Mechanical Equipment................................... Instrumentation......... ..................... -...................... Hazards and Protection....................................... Startup Scrubber Section Tanks and Vessels--........................................... Valves........... ............. ............................................. . Mechanical Equipment.......................................... Instrumentation........................................................ Hazards and Protection..........--............. -....... High Pressure Scrubber Section Tanks and Vessels--............ -................ ........... Valves.............. Mechanical Equipment.......................... ................ Instrumentation----------------Hazards and Protection....................................... Final Outfall Section Valves................................... ............................. ........ Instrumentation---................................................... Hazards and Protection......................................... Operating Discipline-............................................... 21-22 22-23 23 23-24 24-25 26 26-27 27-28 28-29 29-30 31 31 32 32 33-34 35 35-37 37 37-39 39-40 41-42 42-43 43-45 45-47 DO 127549 CONFIDENTIAL trclled copy S'J^JECT TO UPDATE T. S. S. Section Tanks and Vessels..................-.......................... Valves........................................................................ Mechanical Equipment......................................... Instrumentation...................................................... Hazards and Protection...................................... Low Pressure Scrubber Section Tanks and Vessels.............................................. Valves........................................................................ Mechanical Equipment................................. Instrumentation........................................................ Hazards and Protection........................................ Startup Scrubber Section Tanks and Vessels............. -................................. Valves---..................................................................... Mechanical Equipment............................-............. Instrumentation........................................................ Hazards and Protection-------- ------- -.................. High Pressure Scrubber Section Tanks and Vessels................ .......................... --Valves....... .................................................................. Mechanical Equipment---------------- -----------------Instrumentation......... -............................................. Hazards and Protection........................................ Final Outfall Section Valves........................................................-............... Instrumentation....... ................................................ Hazards and Protection.......--............................ Operating Discipline.......-........................................ 21-22 22-23 23 23-24 24-25 26 26-27 27-28 28-29 29-30 31 31 32 32 33-34 35 35-37 37 37-39 3 9-40 41-42 42-43 43-45 45-47 DO 127550 conftohntiav. -C>" TROLLED COPY 3'J2JECT TO UPDATE T. S. S. Section Tanks and Vessels............................................... Valves........................................................................ Mechanical Equipment......................................... Instrumentation...................................................... Hazards and Protection......................-....... -- Low Pressure Scrubber Section Tanks and Vessels............................................... Valves........................................................................ Mechanical Equipment......................................... Instrumentation...........................-........................... Hazards and Protection......................................... Startup Scrubber Section Tanks and Vessels.......... ..................................... Valves...................................................................... Mechanical Equipment..... ..................................... Instrumentation-...................................................... Hazards and Protection---.................................... High Pressure Scrubber Section Tanks and Vessels........................................ ....... Valves.......................................... -............................. Mechanical Equipment.......................... --......... Instrumentation............................................ ............ Hazards and Protection......................................... Final Outfall Section Valves.......................................................................... Instrumentation...........-...................... .................... Hazards and Protection.......................................... Operating Discipline............. ...... ............................ 21-22 22-23 23 23-24 24-25 26 26-27 27-28 28-29 29-30 31 31 32 32 33-34 35 35-37 37 37-39 39-40 41-42 42-43 43-45 45-47 00 127551 CGNFlDFNTrA! -Ui'Tr.CLLED COPY SUBJECT TO UPDATE ECOLOGY AREA--GENERAL PROCESS The Ecology Area comprises all the equipment and systems that collect and treat all the emissions and wastes from the Plant, either for recycle or safe and clean discharge. It can be divided into three major sub areas: Air Ecology, Water Ecology, and Waste Storage and Handling. Air Ecology can be broken down as follows: An Emergency Dump Scrubber: is a combination Venturi and packed tower scrubber. It neutralizes the chlorine gas from the chlorine cells on loss of vacuum in the wet chlorine header. The spent cell effluent discharges directly into WP-800 (treatment tank). The High Pressure Scrubber: is a combination Venturi and packed tower scrubber. It neutralizes the chlorine from the chlorine compressor discharge on high discharge pressure, the chlorine from the PSV header in case of safety valve relief, and the chlorine from the Liquefaction Area vents and sniffs. The spent cell effluent discharges into WP-800. The Startup Scrubber: is a combination Venturi and packed tower scrubber. It neutralizes the chlorine from the chlorine cells on start up. The packed tower (T-250) is common to the emergency Venturi (J-250) and the start up Venturi (J-251). Cell effluent supply is provided by two 2300 volt pumps forwarding cell effluent from D-301 to the emergency and start up scrubbers. Water Ecology can be broken down as follows: Sump 12 and the Trench System: is a system of trenches that constitute the drainage system for the Plant. It collects all surface water, except the power and effluents, and routes them to Sump 12. From Sump 12, the collected effluents are normally pumped to the holding tank WP-800. In case of emergencies. Sump 12 can also be DO 127552 CONFIDENTIAL C2:';722LLD COPY ------ -- L'PC'ATC ECOLOGY AREA--GENERAL PROCESS The Ecology Area comprises all the equipment and systems that collect and treat all the emissions and wastes from the Plant, either for recycle or safe and clean discharge. It can be divided into three major sub areas: Air Ecology, Water Ecology, and Waste Storage and Handling. Air Ecology can be broken down as follows: An Emergency Dump Scrubber: is a combination Venturi and packed tower scrubber. It neutralizes the chlorine gas from the chlorine cells on loss of vacuum in the wet chlorine header. The spent cell effluent discharges directly into WP-800 (treatment tank). The High Pressure Scrubber: is a combination Venturi and packed tower scrubber. It neutralizes the chlorine from the chlorine compressor discharge on high discharge pressure, the chlorine from the PSV header in case of safety valve relief, and the chlorine from the Liquefaction Area vents and sniffs. The spent cell effluent discharges into WP-800. The Startup Scrubber: is a combination Venturi and packed tower scrubber. It neutralizes the chlorine from the chlorine cells on start up. The packed tower (T-250) is common to the emergency Venturi (J-250) and the start up Venturi (J-251). Cell effluent supply is provided by two 2300 volt pumps forwarding cell effluent from D-301 to the emergency and start up scrubbers. Water Ecology can be broken down as follows: Sump 12 and the Trench System: is a system of trenches that constitute the drainage system for the Plant. It collects all surface water, except the power and effluents, and routes them to Sump 12. From Sump 12, the collected effluents are normally pumped to the holding tank WP-800. In case of emergencies, Sump 12 can also be DO 127553 CONFIDENT r At. - : POLLED COPY -- 'JPDATE ECOLOGY AREA--GENERAL PROCESS The Ecology Area comprises all the equipment and systems that collect and treat all the emissions and wastes from the Plant, either for recycle or safe and clean discharge. It can be divided into three major sub areas: Air Ecology, Water Ecology, and Waste Storage and Handling. Air Ecology can be broken down as follows: An Emergency Dump Scrubber: is a combination Venturi and packed tower scrubber. It neutralizes the chlorine gas from the chlorine cells on loss of vacuum in the wet chlorine header. The spent cell effluent discharges directly into WP-800 (treatment tank). The High Pressure Scrubber: is a combination Venturi and packed tower scrubber. It neutralizes the chlorine from the chlorine compressor discharge on high discharge pressure, the chlorine from the PSV header in case of safety valve relief, and the chlorine from the Liquefaction Area vents and sniffs. The spent cell effluent discharges into WP-800. The Startup Scrubber: is a combination Venturi and packed tower scrubber. It neutralizes the chlorine from the chlorine cells on start up. The packed tower (T-250) is common to the emergency Venturi (J-250) and the start up Venturi (J-251). Cell effluent supply is provided by two 2300 volt pumps forwarding cell effluent from D-301 to the emergency and start up scrubbers. Water Ecology can be broken down as follows: Sump 12 and the Trench System: is a system of trenches that constitute the drainage system for the Plant. It collects all surface water, except the power and effluents, and routes them to Sump 12. From Sump 12, the collected effluents are normally pumped to the holding tank WP-800. In case of emergencies, Sump 12 can also be DO 127554 CONFIDENTIAL w ----- - COPY 'JPC'ATH pumped to the emergency holding tanks, D-803 A/B, or directly to the Outfall Trench. The North Area and Outfall: are the only discharge points of liquid effluents out of the Chlor-alkali II Plant. It terminates in a permitted outfall point which is equipped with continuous flow and pH monitoring and a compositor sample. T/wo HC1 addition stations in this trench control the pH as close to ifetttFSl as possible. An oil skimmer at the outfall point separates and retains the small quantities of oil that might be present in the effluent. T. S. S. (Total Suspended Solids): consists of a diked area containing a recirculating tank (D-810) and a mixer. Bottom solids from the brine clarifier are forwarded here and dissolved into a clear liquid by HC1 addition. After neutralization, the effluent is then pumped directly into the north ditch for disposal at the Outfall. D-803 A & B: minimum level. the tracing and during startups. emergency holding tanks, normally kept at a They hold the plant effluents during upsets when neutralization system capabilities are exceeded or WP-800: a recirculating tank of 300,000 gallons capacity. Normally, all plant effluents, both from Sump 12 and the Scrubber System, are routed to this tank where they are recirculated and treated before discharging to the Outfall Trench. The Transfer line: is the heart of the liquid effluents system. It connects WP-800, D-803's, Sump 12 and the Outfall. A Mod5 based control system sets and controls the flow configurations through this transfer line between the different parts of the system. Chemical Storage: is a diked area with sodium thiosulfate and hydrochloric acid tanks and pumps to receive, store and supply both HC1 and thiosulfate for chemical treatment of the Plant effluents. Waste Storage: consists of a segregated area with discrete quantities of chemical waste and contaminated material stored for disposal by incineration or thermal oxidation by Central Waste Treatment. DO 1^7555 confidential OONTP.CULID COPY v./SJECT TO UPDATE pumped to the emergency holding tanks, D-803 A/B, or directly to the Outfall Trench. The North Area and Outfall: are the only discharge points of liquid effluents out of the Chlor-alkali II Plant. It terminates in a permitted outfall point which is equipped with continuous flow and pH monitoring and a compositor sample. Two HC1 addition stations in this trench control the pH as close to as possible. An oil skimmer at the outfall point separates and retains the small quantities of oil that might be present in the effluent. T. S. S. (Total Suspended Solids): consists of a diked area containing a recirculating tank (D-810) and a mixer. Bottom solids from the brine clarifier are forwarded here and dissolved into a clear liquid by HC1 addition. After neutralization, the effluent is then pumped directly into the north ditch for disposal at the Outfall. D-803 A & B: minimum level. the tracing and during startups. emergency holding tanks, normally kept at a They hold the plant effluents during upsets when neutralization system capabilities are exceeded or WP-80 0: a recirculating tank of 300,000 gallons capacity. Normally, all plant effluents, both from Sump 12 and the Scrubber System, are routed to this tank where they are recirculated and treated before discharging to the Outfall Trench. The Transfer line: is the heart of the liquid effluents system. It connects WP-800, D-803's, Sump 12 and the Outfall. A Mod5 based control system sets and controls the flow configurations through this transfer line between the different parts of the system. Chemical Storage: is a diked area with sodium thiosulfate and hydrochloric acid tanks and pumps to receive, store and supply both HC1 and thiosulfate for chemical treatment of the Plant effluents. Waste Storage: consists of a segregated area with discrete quantities of chemical waste and contaminated material stored for disposal by incineration or thermal oxidation by Central Waste Treatment. OO 127556 CONFIDENTIAL ^DNTFOLLED COPY -.'.'EJECT TO UPDATE pumped to the emergency holding tanks, D-803 A/B, or directly to the Outfall Trench. The North Area and Outfall: are the only discharge points of liquid effluents out of the Chlor-alkali II Plant. It terminates in a permitted outfall point which is equipped with continuous flow and pH monitoring and a compositor sample. Two HC1 addition stations in this trench control the pH as close to as possible. An oil skimmer at the outfall point separates and retains the small quantities of oil that might be present in the effluent. T. S. S. (Total Suspended Solids): consists of a diked area containing a recirculating tank (D-810) and a mixer. Bottom solids from the brine clarifier are forwarded here and dissolved into a clear liquid by HC1 addition. After neutralization, the effluent is then pumped directly into the north ditch for disposal at the Outfall. D-803 A & B: minimum level. the tracing and during startups. emergency holding tanks, normally kept at a They hold the plant effluents during upsets when neutralization system capabilities are exceeded or W P-800: a recirculating tank of 300,000 gallons capacity. Normally, all plant effluents, both from Sump 12 and the Scrubber System, are routed to this tank where they are recirculated and treated before discharging to the Outfall Trench. The Transfer line: is the heart of the liquid effluents system. It connects WP-800, D-803's, Sump 12 and the Outfall. A Mod5 based control system sets and controls the flow configurations through this transfer line between the different parts of the system. Chemical Storage: is a diked area with sodium thiosulfate and hydrochloric acid tanks and pumps to receive, store and supply both HC1 and thiosulfate for chemical treatment of the Plant effluents. Waste Storage: consists of a segregated area with discrete quantities of chemical waste and contaminated material stored for disposal by incineration or thermal oxidation by Central Waste Treatment. DO 127557 CONFIDENTIAL CONTROLLED COPY "OBJECT TO UPDATE ECOLOGY AREA TRENCH COLLECTION AND DISTRIBUTION TANKS AND VESSELS Sump 12 Sump 12 is an in-ground, concrete designed sump used to collect rain water and any waste water in the plant through the trenches. The pumps, P-812 A/B, pump the contents of Sump 12 to WP-800, D-803 A/B, or the outfall, depending on the need for treatment. These pumps prevent the plant from flooding. The primary inlet trench to Sump 12 is equipped with a strainer which requires cleaning on a routine basis. The strainer catches debris carried along in the trench system and prevents plugging and possible damage to the P-812's and downstream piping. Plugging of the strainer can prevent the trenches in the plant to drain to the sump, back up, and flood the plant. MX-801: MX-801 is an FRP designed mixer used to static control the pH of the contents being sent to the trench. HC1 is added at the mixer to control the pH, and sodium thiosulfate is added to treat for hypochlorites. valves Sump 12 Level Control Valve: This valve is used to control the level in Sump 12, as well as the level of the trenches throughout the plant to prevent plant flooding. This valve is labeled AO-306 and is located at Sump 12 on the discharge of the P-812's. Sodium Thiosulfate to MX-801: This valve is used to add sodium thiosulfate to MX-801 to kill the hypochlorites of the contents going to the outfall trench. Without this, a Ch spill could occur. This valve is labeled AO-317 and is located at MX-801. 00 127558 CONFIDENTIAL. CC,STROLLED copy SUBJECT TO UPDATE ECOLOGY AREA TRENCH COLLECTION AND DISTRIBUTION TANKS AND VESSELS Sump 12 Sump 12 is an in-ground, concrete designed sump used to collect rain water and any waste water in the plant through the trenches. The pumps, P-812 A/B, pump the contents of Sump 12 to WP-800, D-803 A/B, or the outfall, depending on the need for treatment. These pumps prevent the plant from flooding. The primary inlet trench to Sump 12 is equipped with a strainer which requires cleaning on a routine basis. The strainer catches debris carried along in the trench system and prevents plugging and possible damage to the P-812's and downstream piping. Plugging of the strainer can prevent the trenches in the plant to drain to the sump, back up, and flood the plant. MX-801: MX-801 is an FRP designed mixer used to static control the pH of the contents being sent to the trench. HC1 is added at the mixer to control the pH, and sodium thiosulfate is added to treat for hypochlorites. VALVES Sump 12 Level Control Valve: This valve is used to control the level in Sump 12, as well as the level of the trenches throughout the plant to prevent plant flooding. This valve is labeled AO-306 and is located at Sump 12 on the discharge of the P-812's. Sodium Thiosulfate to MX-801: This valve is used to add sodium thiosulfate to MX-801 to kill the hypochlorites of the contents going to the outfall trench. Without this, a Ch spill could occur. This valve is labeled AO-317 and is located at MX-801. DO 127559 CONFIDENTIAL JCcTRCLLED COPY SUBJECT TO UPDATE ECOLOGY AREA TRENCH COLLECTION AND DISTRIBUTION TANKS AND VESSELS Sump 12 Sump 12 is an in-ground, concrete designed sump used to collect rain water and any waste water in the plant through the trenches. The pumps, P-812 A/B, pump the contents of Sump 12 to WP-800, D-803 A/B, or the outfall, depending on the need for treatment. These pumps prevent the plant from flooding. The primary inlet trench to Sump 12 is equipped with a strainer which requires cleaning on a routine basis. The strainer catches debris carried along in the trench system and prevents plugging and possible damage to the P-812's and downstream piping. Plugging of the strainer can prevent the trenches in the plant to drain to the sump, back up, and flood the plant. MX-801: MX-801 is an FRP designed mixer used to static control the pH of the contents being sent to the trench. HC1 is added at the mixer to control the pH, and sodium thiosulfate is added to treat for hypochlorites. VALVES Sump 12 Level Control Valve: This valve is used to control the level in Sump 12, as well as the level of the trenches throughout the plant to prevent plant flooding. This valve is labeled AO-306 and is located at Sump 12 on the discharge of the P-812's. Sodium Thiosulfate to MX-801: This valve is used to add sodium thiosulfate to MX-801 to kill the hypochlorites of the contents going to the outfall trench. Without this, a Ch spill could occur. This valve is labeled AO-317 and is located at MX-801. DO 127560 CONFIDENTIAL PECLLED COPY SUEJECT TO UPDATE Spent HC1 from Methanes: This is HC1 that we get from the Methanes Plant to treat the waste water to the Division outfall. There are also plans to add this acid to D-810 (T. S. S. Unit). This is a real savings because we do not have to use good 34% HC1. It also helps Methanes because they need to get rid of it. This valve is labeled AO-331 and is located west of MX-801. Spent HC1 from Vinyl II to MX-801: This is HC1 that we hope to get from Vinyl II in the near future. This could be a real savings because we don't have to use good 34% HC1. It also helps Vinyl II since they have to get rid of it. This valve is labeled AO-318 and is located west of MX-801. ABV'S on P-812'S to WP-800: These are DO valves used to line up the Sump 12 pumps to WP-800. These valves are digital output valves. They run wide open or closed. These valves are labeled DO-327, 328, and 329 and are located on the southeast side of WP-800. ABV'S on P-812'S to D-803'S: These are DO valves used to line up the Sump 12 pumps to D-803 A/B. These valves are digital output valves. They run wide open or closed. These valves are labeled DO-326, 327, 328, and 329 and are located on the southeast side of WP-800. Sump 12 to Trench: This valve controls the flow of Sump 12 to the outfall trench. This valve is labeled AO-319 and is located south of T-206. Point 8: This is a manual valve that sends Sump 12 and the trenches straight to the outfall. This valve is rarely used. It would be used if both P-812's failed to run. Lack of control could cause noncompliance. This valve is located at Sump 12. DO 127561 CONFIDFNTIAL Spent HC1 from Methanes: This is HC1 that we get from the Methanes Plant to treat the waste water to the Division outfall. There are also plans to add this acid to D-810 (T. S. S. Unit). This is a real savings because we do not have to use good 34% HC1. It also helps Methanes because they need to get rid of it. This valve is labeled AO-331 and is located west of MX-801. Spent HCI from Vinyl II to MX-801: This is HC1 that we hope to get from Vinyl II in the near future. This could be a real savings because we don't have to use good 34% HCI. It also helps Vinyl II since they have to get rid of it. This valve is labeled AO-318 and is located west of MX-801. ABV'S on P-812'S to WP-800: These are DO valves used to line up the Sump 12 pumps to WP-800. These valves are digital output valves. They run wide open or closed. These valves are labeled DO-327, 328, and 329 and are located on the southeast side of WP-800. ABV'S on P-812'S to D-803'S: These are DO valves used to line up the Sump 12 pumps to D-803 A/B, These valves are digital output valves. They run wide open or closed. These valves are labeled DO-326, 327, 328, and 329 and are located on the southeast side of WP-800. Sump 12 to Trench: This valve controls the flow of Sump 12 to the outfall trench. This valve is labeled AO-319 and is located south of T-206. Point 8: This is a manual valve that sends Sump 12 and the trenches straight to the outfall. This valve is rarely used. It would be used if both P-812's failed to run. Lack of control could cause noncompliance. This valve is located at Sump 12. DO 127562 CONFIDENTIAL 6 Spent HC1 from Methanes: This is HC1 that we get from the Methanes Plant to treat the waste water to the Division outfall. There are also plans to add this acid to D-810 (T. S. S. Unit). This is a real savings because we do not have to use good 34% HC1. It also helps Methanes because they need to get rid of it. This valve is labeled AO-331 and is located west of MX-801. Spent HC1 from Vinyl II to MX-801: This is HC1 that we hope to get from Vinyl II in the near future. This could be a real savings because we don't have to use good 34% HC1. It also helps Vinyl II since they have to get rid of it. This valve is labeled AO-318 and is located west of MX-801. ABV'S on P-812'S to WP-800: These are DO valves used to line up the Sump 12 pumps to WP-800. These valves are digital output valves. They run wide open or closed. These valves are labeled DO-327, 328, and 329 and are located on the southeast side of WP-800. ABV'S on P-812'S to D-803'S: These are DO valves used to line up the Sump 12 pumps to D-803 A/B. These valves are digital output valves. They run wide open or closed. These valves are labeled DO-326, 327, 328, and 329 and are located on the southeast side of WP-800. Sump 12 to Trench: This valve controls the flow of Sump 12 to the outfall trench. This valve is labeled AO-319 and is located south of T-206. Point 8: This is a manual valve that sends Sump 12 and the trenches straight to the outfall. This valve is rarely used. It would be used if both P-812's failed to run. Lack of control could cause noncompliance. This valve is located at Sump 12. DO 127563 CONFIDENTIAL 6 / MECHANICAL EQUIPMENT P-812 A/B These pumps pump the water that has collected from the trenches in the plant into Sump 12 and pumps to WP-800, D-803 A/B, or the outfall trench. These pumps are auto start/stop pumps. INSTRUMENTATION AI-304 P-812'S Flow Transmitter To D-803 A/B Indicates the amount of flow from Sump 12 to D-803 A or B. This flow is controlled with valves AO-301 and AO-302. AI-359 Sodium Thiosulfate Flow Transmitter to MX-801 Indicates the amount of sodium thiosulfate flow to MX-801. This flow is controlled with valve AO-317. AI-387 Spent HC1 Flow Transmitter to MX-801 Indicates the amount of HCI we receive from the Methanes plant going to MX-801. This flow is controlled with valve AO-331. AI-327 Sump 12 Level Transmitter Indicates the amount of level in Sump 12. This flow is controlled with valve AO-306. DO 127564 CONFIDENTIAL POLLED COPY w v. tCT 10 'Jr-DA i E 7 MECHANTCAL EQUIPMENT P-812 A/B These pumps pump the water that has collected from the trenches in the plant into Sump 12 and pumps to WP-800, D-803 A/B, or the outfall trench. These pumps are auto start/stop pumps. INSTRUMENTATION AI-304 P-812'S Flow Transmitter To D-803 A/B Indicates the amount of flow from Sump 12 to D-803 A or B. This flow is controlled with valves AO-301 and AO-302. AI-359 Sodium Thiosulfate Flow Transmitter to MX-801 Indicates the amount of sodium thiosulfate flow to MX-801. This flow is controlled with valve AO-317. AI-387 Spent HC1 Flow Transmitter to MX-801 Indicates the amount of HC1 we receive from the Methanes plant going to MX-801. This flow is controlled with valve AO-331. AI-327 Sump 12 Level Transmitter Indicates the amount of level in Sump 12. This flow is controlled with valve AO-306. D0 127565 confidential * \i' OLLED COPY TC UPDATE MECHANIC AL_JL0U1PMENT P-812 A/B These pumps pump the water that has collected from the trenches in the plant into Sump 12 and pumps to WP-800, D-803 A/B, or the outfall trench. These pumps are auto start/stop pumps. INSTRUMENTATION AI-304 P-812'S Flow Transmitter To D-803 A/B Indicates the amount of flow from Sump 12 to D-803 A or B. This flow is controlled with valves AO-301 and AO-302. AI-359 Sodium Thiosulfate Flow Transmitter to MX-801 Indicates the amount of sodium thiosulfate flow to MX-801. This flow is controlled with valve AO-317. AI-387 Spent HC1 Flow Transmitter to MX-801 Indicates the amount of HC1 we receive from the Methanes plant going to MX-801. This flow is controlled with valve AO-331. AI-327 Sump 12 Level Transmitter Indicates the amount of level in Sump 12. This flow is controlled with valve AO-306. DO 127566 CONFIDENTIAL 7 >!"-OLLHD COPY cLdicCTTC UPDATE AI-360 Spent HCl from Vinyl II to MX-801 Flow Transmitter Indicates the amount of spent HCl flow coming from Vinyl II. This flow is controlled with valve AO-318. DI-348 Sump 12 Low Level Switch Indicates when the Sump gets a low level. This will shutdown the P-812 pumps to keep from wrecking the pumps. This switch is labeled DI-348. HAZARDS AND PROTECTION Waste Water from Trench The biggest hazard with the contents of Sump 12 is there could be anything in it. The trench system that goes into Sump 12 comes from the Caustic Area, acid sample points and diked area and drains the Brine Area, Liquefaction Area, and Cell Area. It usually has a small amount of caustic in it; however, on cell startups, the cells area dumped to Sump 12. The contents may also contain hot condensate. Rubber gloves should always be worn, and monogoggles are required. Noise As in any part of the block, hearing protection should be worn. Rotating Equipment As in any area, extra caution should be given when working around rotating equipment. Loose shirt tails, long hair, and fingers should be kept away from rotating equipment. The pumps in this area are P-812 A/B. 127567 CONFIDENTIAL '_/vCLLED COPY cudJcCT TO UPDATE 8 AI-360 Spent HC1 from Vinyl II to MX-801 Flow Transmitter Indicates the amount of spent HC1 flow coming from Vinyl II. This flow is controlled with valve AO-318. DI-348 Sump 12 Low Level Switch Indicates when the Sump gets a low level. This will shutdown the P-812 pumps to keep from wrecking the pumps. This switch is labeled DI-348. HAZARDS AND PROTECTION Waste Water from Trench The biggest hazard with the contents of Sump 12 is there could be anything in it. The trench system that goes into Sump 12 comes from the Caustic Area, acid sample points and diked area and drains the Brine Area, Liquefaction Area, and Cell Area. It usually has a small amount of caustic in it; however, on cell startups, the cells area dumped to Sump 12. The contents may also contain hot condensate. Rubber gloves should always be worn, and monogoggles are required. Noise As in any part of the block, hearing protection should be worn. Rotating Equipment As in any area, extra caution should be given when working around rotating equipment. Loose shirt tails, long hair, and fingers should be kept away from rotating equipment. The pumps in this area are P-812 A/B. DO 127568 CONFIDENTIAL ! -CLLED COPY c^ajcCT TO UPDATE 8 AI-360 Spent HC1 from Vinyl II to MX-801 Flow Transmitter Indicates the amount of spent HC1 flow coming from Vinyl II. This flow is controlled with valve AO-318. DI-348 Sump 12 Low Level Switch Indicates when the Sump gets a low level. This will shutdown the P-812 pumps to keep from wrecking the pumps. This switch is labeled DI-348. HAZARDS AND PROTECTION Waste Water from Trench The biggest hazard with the contents of Sump 12 is there could be anything in it. The trench system that goes into Sump 12 comes from the Caustic Area, acid sample points and diked area and drains the Brine Area, Liquefaction Area, and Cell Area. It usually has a small amount of caustic in it; however, on cell startups, the cells area dumped to Sump 12. The contents may also contain hot condensate. Rubber gloves should always be worn, and monogoggles are required. Noise As in any part of the block, hearing protection should be worn. Rotating Equipment As in any area, extra caution should be given when working around rotating equipment. Loose shirt tails, long hair, and fingers should be kept away from rotating equipment. The pumps in this area are P-812 A/B. DO 127569 CONFIDENTIAL ROLLED COPY cUSjcCT TO UPDATE 8 T ECOLOGY AREA D-803 A/B SECTION TANKS AND VESSELS D-803 A D-803 A is a 590,000 gallon capacity tank with a chlorobutyl rubber lining which is not degradable by hypochlorites. It has a poly ethylene lining under the bottom of the tank, and is cathodically protected to prevent corrosion. This tank is used to store waste water and scrubber effluent until it can be treated in WP-800. The contents normally contain from 0-10% caustic. D-803 B D-803 B is a 590,000 gallon capacity tank with a chlorobutyl rubber lining which is not degradable by hypochlorites. It has a poly ethylene lining under the bottom of the tank and is cathodically protected to prevent corrosion. This tank is used to store waste water and scrubber effluent until it can be treated in WP-800. The contents normally contain from 0-10% caustic. D-803 A/B Sump This is the sump for D-803 A/B diked in area that collects rain water or leaks and is pumped into one of the D-803 tanks. DO 127570 CONFIDENTIAL ~C'_LTD COPY CT T0 UPDATE 9 ECOLOGY AREA D-803 A/B SECTION TANKS AND VESSELS D-803 A D-803 A is a 590,000 gallon capacity tank with a chlorobutyl rubber lining which is not degradable by hypochlorites. It has a poly ethylene lining under the bottom of the tank, and is cathodically protected to prevent corrosion. This tank is used to store waste water and scrubber effluent until it can be treated in WP-800. The contents normally contain from 0-10% caustic. D-803 B D-803 B is a 590,000 gallon capacity tank with a chlorobutyl rubber lining which is not degradable by hypochlorites. It has a poly ethylene lining under the bottom of the tank and is cathodically protected to prevent corrosion. This tank is used to store waste water and scrubber effluent until it can be treated in WP-800. The contents normally contain from 0-10% caustic. D-803 A/B Sump This is the sump for D-803 A/B diked in area that collects rain water or leaks and is pumped into one of the D-803 tanks. DO 127571 CONFIDENTTAl TC'-LED COPY CT TO UPDATE ECOLOGY AREA D-803 A/B SECTION TANKS AND VESSELS D-803 A D-803 A is a 590,000 gallon capacity tank with a chlorobutyl rubber lining which is not degradable by hypochlorites. It has a poly ethylene lining under the bottom of the tank, and is cathodically protected to prevent corrosion. This tank is used to store waste water and scrubber effluent until it can be treated in WP-800. The contents normally contain from 0-10% caustic. D-803 B D-803 B is a 590,000 gallon capacity tank with a chlorobutyl rubber lining which is not degradable by hypochlorites. It has a poly ethylene lining under the bottom of the tank and is cathodically protected to prevent corrosion. This tank is used to store waste water and scrubber effluent until it can be treated in WP-800. The contents normally contain from 0-10% caustic. D-803 A/B Sump This is the sump for D-803 A/B diked in area that collects rain water or leaks and is pumped into one of the D-803 tanks. DO 127572 CONFIDENTIAL TOLLED COPY :J3J C7 "rO UPDATE VALVES Valve to D-803 A/B This valve is a DO valve. It runs wide open or closed. When D-803 A/B is in thefill or drain step, this valve is open. When D-803 A/B is in the wait step, the valve is closed. This valve is labeled DO-440 and is located in the piperack south of WP-800. Valve to D-803 A This valve is a DO valve. It runs wideopen or closed. This valve is open whenever D-803 A is in the fill or drain step. This valve is labeled DO-422 and is located on the north side of D-803 A. Valve to D-803 B This valve is a DO valve. It runs wideopen or closed. This valve is open whenever D-803 B is in the fill or drain step. This valve is labeled DO-432 and is located on the south side of D-803 A. P-806 to D-803 B This valve is a DO valve. It runs wide open or closed. This valve is open when the sump gets a high level and P-806 is running and is calling to go to D-803 B. This valve is labeled DO-434 and is located on the south side of D-803 B. D-803 TO WP-800/Trench Flow Control Valve (Larger) This valve is the larger of the two control valves that control the flow from the D-803's to WP-800 or the trench. It can also control the flow from Sump 12 or WP-800 to the D-803's. This valve is labeled AO-301 and is located south of WP-800. SGKTHOLLED COPY SUBJECT TO UPDATE DO 127573 CONFIDENT TA[ 10 HALVES Valve to D-803 A/B This valve is a DO valve. It runs wide open or closed. When D-803 A/B is in the fill or drain step, this valve is open. When D-803 A/B is in the wait step, the valve is closed. This valve is labeled DO-440 and is located in the piperack south of WP-800. Valve to D-803 A This valve is a DO valve. It runs wideopen or closed. This valve is open whenever D-803 A is in the fill or drain step. This valve is labeled DO-422 and is located on the north side of D-803 A. Valve to D-803 B This valve is a DO valve. It runs wideopen or closed. This valve is open whenever D-803 B is in the fill or drain step. This valve is labeled DO-432 and is located on the south side of D-803 A. P-806 to D-803 B This valve is a DO valve. It runs wideopen or closed. This valve is open when the sump gets a high level and P-806 is running and is calling to go to D-803 B. This valve is labeled DO-434 and is located on the south side of D-803 B. D-803 TO WP-800/Trench Flow Control Valve (Larger) This valve is the larger of the two control valves that control the flow from the D-803's to WP-800 or the trench. It can also control the flow from Sump 12 or WP-800 to the D-803's. This valve is labeled AO-301 and is located south of WP-800. DO 127574 CONFIDENTIAL CONTROLLED COPY SUBJECT TO UPDATE 10 valves Valve to D-803 A/B This valve is a DO valve. It runs wide open or closed. When D-803 A/B is in the fill or drain step, this valve is open. When D-803 A/B is in the wait step, the valve is closed. This valve is labeled DO-440 and is located in the piperack south of WP-800. Valve to D-803 A This valve is a DO valve. It runs wide open or closed. This valve is open whenever D-803 A is in the fill or drain step. This valve is labeled DO-422 and is located on the north side of D-803 A. Valve to D-803 B This valve is a DO valve. It runs wide open or closed. This valve is open whenever D-803 B is in the fill or drain step. This valve is labeled DO-432 and is located on the south side of D-803 A. P-806 to D-803 B This valve is a DO valve. It runs wide open or closed. This valve is open when the sump gets a high level and P-806 is running and is calling to go to D-803 B. This valve is labeled DO-434 and is located on the south side of D-803 B. D-803 TO WP-800/Trench Flow Control Valve (Larger) This valve is the larger of the two control valves that control the flow from the D-803's to WP-800 or the trench. It can also control the flow from Sump 12 or WP-800 to the D-803's. This valve is labeled AO-301 and is located south of WP-800. CONTROLLED COPY SUBJECT TO UPDATE 00 177575 CONFIDENTIAL 10 D-803 to WP-800/Trench Flow Control Valve (Smaller) This valve is the smaller of the two control valves that control the flow from the D-803's to WP-800 or the trench. It also can control the flow from Sump 12 or WP-800 to the D-803's. This valve is labeled AO-302 and is located south of WP-800. P-806 TO D-803 A - This valve is a DO valve. It runs wide open or closed. This valve is open when the sump gets a high level and P-806 is running, and is called to go to D-803 A. This is a fail open valve. This valve is labeled DO-424 and is located on the north side of D-803 A. MECHANICAL EQUIPMENT P-804 A/B These pumps pump out of D-803 A or B to WP-800 or to the outfall trench. P-806 This is the sump pump for the D-803 diked-in area. It is used to pump rain water or any leaks that may occur inside the diked-in area to D-803 A or B. INSTRUMENTATION AI-422 - D-803A Level Transmitter Indicates the amount of level in D-803 A. DI-423 - D-803A High Level Switch Indicates when the level in D-803 A has reached its high level set point. DO 127576 CONFIDENTIAL D-803 to WP-800/Trench Flow Control Valve (Smaller) This valve is the smaller of the two control valves that control the flow from the D-803's to WP-800 or the trench. It also can control the flow from Sump 12 or WP-800 to the D-803's. This valve is labeled AO-302 and is located south of WP-800. P-806 TO D-803 A - This valve is a DO valve. It runs wide open or closed. This valve is open when the sump gets a high level and P-806 is running, and is called to go to D-803 A. This is a fail open valve. This valve is labeled DO 424 and is located on the north side of D-803 A. MECHANICAL EQUIPMENT P-804 A/B These pumps pump out of D-803 A or B to WP-800 or to the outfall trench. P-806 This is the sump pump for the D-803 diked-in area. It is used to pump rain water or any leaks that may occur inside the diked-in area to D-803 A or B. INSTRUMENTATION AI-422 - D-803A Level Transmitter Indicates the amount of level in D-803 A. DI-423 - D-803A High Level Switch Indicates when the level in D-803 A has reached its high level set point. DO 1?7577 CONFIDENTIAL D-803 to WP-800/Trench Flow Control Valve (Smaller) This valve is the smaller of the two control valves that control the flow from the D-803's to WP-800 or the trench. It also can control the flow from Sump 12 or WP-800 to the D-803's. This valve is labeled AO-302 and is located south of WP-800. P-806 TO D-803 A - This valve is a DO valve. It runs wide open or closed. This valve is open when the sump gets a high level and P-806 is running, and is called to go to D-803 A. This is a fail open valve. This valve is labeled DO-424 and is located on the north side of D-803 A. MECHANICAL EQUIPMENT P-804 A/B These pumps pump out of D-803 A or B to WP-800 or to the outfall trench. P-806 This is the sump pump for the D-803 diked-in area. It is used to pump rain water or any leaks that may occur inside the diked-in area to D-803 A or B. INSTRUMENTATION AI-422 - D-803A Level Transmitter Indicates the amount of level in D-803 A. DI-423 - D-803A High Level Switch Indicates when the level in D-803 A has reached its high level set point. DO 127578 CONFIDENTIAL c-loJICT to update 11 AI-432 - D-803B Level Transmitter Indicates the amount of level in D-803 B. DI-433 - D-803 High Level Transmitter Indicates when the level in D-803 B has reached its high level set point. AI-314 - D-803 A/B to WP-800 Trench Flow Transmitter (High Range) - Indicates the flow from the D-803's to WP-800 or the trench. This is the high range of the two transmitters. This flow is controlled with valves AO-301 and AO-302. AI-330 - D-803 A/B to WP-800 Trench Flow Transmitter (Low Range) - Indicates the flow from the D-803's to WP-800 or the trench. This is the low range of the two transmitters. This flow is controlled with valves AO-301 and AO-302. DI-437 - D-803A/B Sump High Level Switch Indicates when the level in the diked-in area sump reaches its high level set point. This activates the start switch for P-806 which pumps the sump to D-803 A/B. HAZARDS AND PROTECTION Cell Effluent Cell effluent is a corrosive effluent that is about 0-10% caustic. Minimum requirements are rubber gloves and monogoggles. Slicker suit and face shield are required when rodding out bleeds. DO 127579 CONFTDENTTAl COY'POLIED COPY 1 AI-432 * D-803B Level Transmitter Indicates the amount of level in D-803 B. DI-433 - D-803 High Level Transmitter Indicates when the level in D-803 B has reached its high level set point. AI-314 - D-803 A/B to WP-800 Trench Flow Transmitter (High Range) - Indicates the flow from the D-803's to WP-800 or the trench. This is the high range of the two transmitters. This flow is controlled with valves AO-301 and AO-302. AI-330 - D-803 A/B to WP-800 Trench Flow Transmitter (Low Range) - Indicates the flow from the D-803's to WP-800 or the trench. This is the low range of the two transmitters. This flow is controlled with valves AO-301 and AO-302. DI-437 - D-803A/B Sump High Level Switch Indicates when the level in the diked-in area sump reaches its high level set point. This activates the start switch for P-806 which pumps the sump to D-803 A/B. HAZARDS AND PROTECT1QN Cell Effluent Cell effluent is a corrosive effluent that is about 0-10% caustic. Minimum requirements are rubber gloves and monogoggles. Slicker suit and face shield are required when rodding out bleeds. DO 127580 CONFIDENTIAL COY~-.OLLED COPY 12 AI-432 - D-803B Level Transmitter Indicates the amount of level in D-803 B. DI-433 - D-803 High Level Transmitter Indicates when the level in D-803 B has reached its high level set point. AI-314 - D-803 A/B to WP-800 Trench Flow Transmitter (High Range) - Indicates the flow from the D-803's to WP-800 or the trench. This is the high range of the two transmitters. This flow is controlled with valves AO-301 and AO-302. AI-330 - D-803 A/B to WP-800 Trench Flow Transmitter (Low Range) - Indicates the flow from the D-803's to WP-800 or the trench. This is the low range of the two transmitters. This flow is controlled with valves AO-301 and AO-302. DI-437 - D-803A/B Sump High Level Switch Indicates when the level in the diked-in area sump reaches its high level set point. This activates the start switch for P-806 which pumps the sump to D-803 A/B. HAZARDS AND PROTECTION Cell Effluent Cell effluent is a corrosive effluent that is about 0-10% caustic. Minimum requirements are rubber gloves and monogoggles. Slicker suit and face shield are required when rodding out bleeds. DO 127581 CONFIDENTIAL CTV~-.OL.LED COPY 12 Rotating Equipment As in any area, extra caution should be taken when working around rotating equipment. Loose shirt tails and sleeves, long hair, and fingers should be kept away from rotating equipment. The pumps in the D-803 area (P-804 A/B, P-806) are auto start/stop pumps. Noise As in any part of the block, hearing protection should be worn. DO 1?7582 CONFIDENTIAL r^OLLED COPY 13 Rotating Equipment As in any area, extra caution should be taken when working around rotating equipment. Loose shirt tails and sleeves, long hair, and fingers should be kept away from rotating equipment. The pumps in the D-803 area (P-804 A/B, P-806) are auto start/stop pumps. Noise As in any part of the block, hearing protection should be worn. DO 127583 CONFIDENTIAL Rotating Equipment As in any area, extra caution should be taken when working around rotating equipment. Loose shirt tails and sleeves, long hair, and fingers should be kept away from rotating equipment. The pumps in the D-803 area (P-804 A/B, P-806) are auto start/stop pumps. Noise As in any part of the block, hearing protection should be worn. DO 127584 CONFIDENTIAL "SOLLED COPY ECOLOGY AREA - WP-800 SECTION TANKS AND VESSELS WP-800 WP-800 is a concrete designed 50' x 100' x 10' high rectangular tank of 300,000 gallons capacity. It has a leachate system that collects the underground water into a sump. The tank is used to collect spent cell effluent from scrubbers, waste water from Sump 12 and D-803 A/B. The contents are recirculated and treated for hypochlorites and pH and then transferred to the Outfall. It is located north of the Ch cell area and west of the H2 Recovery Unit. MX-800 MX-800 is a titanium mixer, located in the re-circulation line at the discharge of the P-802 pumps. HC1 and sodium thiosulfate are added at the mixer's inlet to treat for hypochlorites and pH. pH and ORP probes are located on the outlet of the mixer. The contents can go back into WP-800, D-803 A/B or to the Outfall if the pH and hypochlorites are in spec. The mixer is located south of WP-800. D-801 D-801 is an FRP tank, 12' x 24' high, containing 34% HC1. The capacity of this tank is 20,000 gallons. The HC1 is stored in D-801 to , pH treat the contents of WP-800 and the Outfall. It is located in a diked area west of WP-800. D-800 D-800 is an FRP tank, 12' x 24' high, containing sodium thiosulfate. The capacity of this tank is 20,000 gallons. Sodium thiosulfate is stored in D-800 to treat for hypochlorites in WP-800, the Outfall, H2 Recovery, and T. S. S. It is located in the diked area west of WP-800 and is north of D-801. DO 1?7585 CONFIDENTIAL 00*'TROLLED COPY SUSw'eCT to update ECOLOGY AREA - WP-800 SECTION TANKS AND VESSELS WP-800 WP-800 is a concrete designed 50' x 100' x 10' high rectangular tank of 300,000 gallons capacity. It has a leachate system that collects the underground water into a sump. The tank is used to collect spent cell effluent from scrubbers, waste water from Sump 12 and D-803 A/B. The contents are recirculated and treated for hypochlorites and pH and then transferred to the Outfall. It is located north of the Ch cell area and west of the H2 Recovery Unit. MX-800 MX-800 is a titanium mixer, located in the re-circulation line at the discharge of the P-802 pumps. HC1 and sodium thiosulfate are added at the mixer's inlet to treat for hypochlorites and pH. pH and ORP probes are located on the outlet of the mixer. The contents can go back into WP-800, D-803 A/B or to the Outfall if the pH and hypochlorites are in spec. The mixer is located south of WP-800. D-80I D-801 is an FRP tank, 12' x 24' high, containing 34% HC1. The capacity of this tank is 20,000 gallons. The HC1 is stored in D-801 to , pH treat the contents of WP-800 and the Outfall. It is located in a diked area west of WP-800. D-800 D-800 is an FRP tank, 12' x 24' high, containing sodium thiosulfate. The capacity of this tank is 20,000 gallons. Sodium thiosulfate is stored in D-800 to treat for hypochlorites in WP-800, the Outfall, H2 Recovery, and T. S. S. It is located in the diked area west of WP-800 and is north of D-801. DO 127586 CONFIDENTIAL SO^T^CSLED COPY SUBJECT TO UPDATE ECOLOGY AREA - WP-800 SECTION TANKS AND VESSELS WP-800 WP-800 is a concrete designed 50' x 100' x 10' high rectangular tank of 300,000 gallons capacity. It has a leachate system that collects the underground water into a sump. The tank is used to collect spent cell effluent from scrubbers, waste water from Sump 12 and D-803 A/B. The contents are recirculated and treated for hypochlorites and pH and then transferred to the Outfall. It is located north of the Ch cell area and west of the H2 Recovery Unit. MX-800 MX-800 is a titanium mixer, located in the re-circulation line at the discharge of the P-802 pumps. HCI and sodium thiosulfate are added at the mixer's inlet to treat for hypochlorites and pH. pH and ORP probes are located on the outlet of the mixer. The contents can go back into WP-800, D-803 A/B or to the Outfall if the pH and hypochlorites are in spec. The mixer is located south of WP-800. D-801 D-801 is an FRP tank, 12' x 24' high, containing 34% HCI. The capacity of this tank is 20,000 gallons. The HCI is stored in D-801 to , pH treat the contents of WP-800 and the Outfall. It is located in a diked area west of WP-800. D-800 D-800 is an FRP tank, 12' x 24' high, containing sodium thiosulfate. The capacity of this tank is 20,000 gallons. Sodium thiosulfate is stored in D-800 to treat for hypochlorites in WP-800, the Outfall, H2 Recovery, and T. S. S. It is located in the diked area west of WP-800 and is north of D-801. DO 127587 CONFIDENTIAL CONTROLLED COPY SUBJECT TO UPDATE 14 D-801 Area Sump D-801 Area Sump is a small sump inside the diked area for D-801. This sump collects any liquids, (rain, acid leaks, etc.) that accumulate inside the diked area. P-808 is a sump pump used to pump any of this liquid into WP-800. WP-800 Area Sump WP-800 Area Sump, also known as the leachate system, collects underground and surface water into a small sump, and pumps it back into WP-800. D-800 Area Sump D-800 area sump is a small sump inside the diked area for D-800. This sump collects any liquids (rain, sodium thiosulfate leaks, etc.) that accumulates inside the diked area. P-807 is a sump pump used to pump any of this liquid to WP-800. VALVF.S Sodium Thiosulfate to WP-800: This valve is used to control the amount of sodium thiosulfate used in WP-800 to kill hypochlorites. This valve is labeled AO-311 and is located on the first deck of ecology structure. Sodium Thiosulfate Inlet to D-800: This valve is used when ever we get a truckload of sodium thiosulfate. The tank truck is hooked up at this valve and is only opened after verifying it is sodium thiosulfate. This valve is labeled DO-331 and is located on the north side of D-800. HC1 to MX-800: This valve is used to control pH of contents being pumped from WP-800. This valve is labeled AO-313 and is located at MX-800. Sodium Thiosulfate to MX-800: This valve is used to kill hypochlorites from the contents of WP-800 being fed to MX-800. A CI2 spill could occur if hypochlorites are not treated. This valve is labeled AO-312 and is located west of MX-800. - ' ^OLLSDcopy 00 127888 P-Tnew-rTAL D-801 Area Sump D-801 Area Sump is a small sump inside the diked area for D-801. This sump collects any liquids, (rain, acid leaks, etc.) that accumulate inside the diked area. P-808 is a sump pump used to pump any of this liquid into WP-800. WP-800 Area Sump WP-800 Area Sump, also known as the leachate system, collects underground and surface water into a small sump, and pumps it back into WP-800. D-800 Area Sump D-800 area sump is a small sump inside the diked area for D-800. This sump collects any liquids (rain, sodium thiosulfate leaks, etc.) that accumulates inside the diked area. P-807 is a sump pump used to pump any of this liquid to WP-800. VALVES Sodium Thiosulfate to WP-800: This valve is used to control the amount of sodium thiosulfate used in WP-800 to kill hypochlorites. This valve is labeled AO-311 and is located on the first deck of ecology structure. Sodium Thiosulfate Inlet to D-800: This valve is used when ever we get a truckload of sodium thiosulfate. The tank truck is hooked up at this valve and is only opened after verifying it is sodium thiosulfate. This valve is labeled DO-331 and is located on the north side of D-800. HC1 to MX-800: This valve is used to control pH of contents being pumped from WP-800. This valve is labeled AO-313 and is located at MX-800. Sodium Thiosulfate to MX-800: This valve is used to kill hypochlorites from the contents of WP-800 being fed to MX-800. A CI2 spill could occur if hypochlorites are not treated. This valve is labeled AO-312 and is located west of MX-800. ROLLED COPY 00 L?7589 CONFIDENTIAL D-801 Area Sump D-801 Area Sump is a small sump inside the diked area for D-801. This sump collects any liquids, (rain, acid leaks, etc.) that accumulate inside the diked area. P-808 is a sump pump used to pump any of this liquid into WP-800. WP-800 Area Sump WP-800 Area Sump, also known as the leachate system, collects underground and surface water into a small sump, and pumps it back into WP-800. D-800 Area Sump D-800 area sump is a small sump inside the diked area for D-800. This sump collects any liquids (rain, sodium thiosulfate leaks, etc.) that accumulates inside the diked area. P-807 is a sump pump used to pump any of this liquid to WP-800. VALVES Sodium Thiosulfate to WP-800: This valve is used to control the amount of sodium thiosulfate used in WP-800 to kill hypochlorites. This valve is labeled AO-311 and is located on the first deck of ecology structure. Sodium Thiosulfate Inlet to D-800: This valve is used when ever we get a truckload of sodium thiosulfate. The tank truck is hooked up at this valve and is only opened after verifying it is sodium thiosulfate. This valve is labeled DO-331 and is located on the north side of D-800. HC1 to MX-800: This valve is used to control pH of contents being pumped from WP-800. This valve is labeled AO-313 and is located at MX-800. Sodium Thiosulfate to MX-800: This valve is used to kill hypochlorites from the contents of WP-800 being fed to MX-800. A CI2 spill could occur if hypochlorites are not treated. This valve is labeled AO-312 and is located west of MX-800. M..ROLLED COPY DO 127590 CONFIDENTIAL HCl to D-801 from Solvents: This valve acts as the level control valve for D-801. This valve is labeled AO-314, and is located on the north wall of the D-801 diked area. Auto H2O Valve to T-800: This valve is used to maintain a H2O flow to scrub the HCl vapors off D-801. This valve is labeled AO-315 and is located inside the D-801 diked area. Auto Block Valve Ejector on P-809 Suction: This valve is used to prime the suction line on the P-809's. This valve is labeled DO335 and is located on the first deck of the ecology structure. Auto Block Valve Plant Air to J-802 Ejector: This valve is used to supply air to the ejector so it can prime the suction line on the P-809's. This valve is labeled DO-325 and is located on the first deck of the ecology structure. Auto Block Valves on WP-800 Recycle: These valves are DO valves. They run either wide open or closed. These valves can change position in different steps. There are several other valves that work with these valves. These valves are labeled DO-326, 327, 328, and 329. They are located on the southeast side of WP-800. Auto P-802 Recycle Control Valve to WP-800: This valve is used to recycle the contents of WP-800 until it is treated to a desired pH. This valve is labeled AO-307 and is located southeast of WP-800. Auto WP-800 Level Control Valve (Small): This valve is used to drain WP-800. It drains either to D-803's or to the Outfall. When draining to the Outfall, it ramps open slowly, watching ditch pH. This valve, known as the small level control valve, is labeled AO-309 and is located south of the P-809's. Auto WP-800 Level Control Valve (Large): This valve, known as the big valve, is used to drain WP-800 to D-803's or to the Outfall. It ramps open slowly to the Outfall after the small valve is ramped open. It provides maximum flow to the Outfall or to D-803's. This valve is labeled AO-308 and is located south of the P-809's. -T ^pOLLSD COPY --EocCTTO update D 127591 confidents- 16 HCI to D-801 from Solvents: This valve acts as the level control valve for D-801. This valve is labeled AO-314, and is located on the north wall of the D-801 diked area. Auto H2O Valve to T-800: This valve is used to maintain a H2O flow to scrub the HCI vapors off D-801. This valve is labeled AO-315 and is located inside the D-801 diked area. Auto Block Valve Ejector on P-809 Suction: This valve is used to prime the suction line on the P-809's. This valve is labeled DO335 and is located on the first deck of the ecology structure. Auto Block Valve Plant Air to J-802 Ejector: This valve is used to supply air to the ejector so it can prime the suction line on the P-809's. This valve is labeled DO-325 and is located on the first deck of the ecology structure. Auto Block Valves on WP-800 Recycle: These valves are DO valves. They run either wide open or closed. These valves can change position in different steps. There are several other valves that work with these valves. These valves are labeled DO-326, 327, 328, and 329. They are located on the southeast side of WP-800. Auto P-802 Recycle Control Valve to WP-800: This valve is used to recycle the contents of WP-800 until it is treated to a desired pH. This valve is labeled AO-307 and is located southeast of WP-800. Auto WP-800 Level Control Valve (Small): This valve is used to drain WP-800. It drains either to D-803's or to the Outfall. When draining to the Outfall, it ramps open slowly, watching ditch pH. This valve, known as the small level control valve, is labeled AO-309 and is located south of the P-809's. Auto WP-800 Level Control Valve (Large): This valve, known as the big valve, is used to drain WP-800 to D-803's or to the Outfall. It ramps open slowly to the Outfall after the small valve is ramped open. It provides maximum flow to the Outfall or to D-803's. This valve is labeled AO-308 and is located south of the P-809's. ;rcN!I50LLHD copy TO UPDATE no 127592 CONFIDENT IW 16 HCI to D-801 from Solvents: This valve acts as the level control valve for D-801. This valve is labeled AO-314, and is located on the north wall of the D-801 diked area. Auto H2O Valve to T-800: This valve is used to maintain a H2O flow to scrub the HCI vapors off D-801. This valve is labeled AO-315 and is located inside the D-801 diked area. Auto Block Valve Ejector on P-809 Suction: This valve is used to prime the suction line on the P-809's. This valve is labeled DO335 and is located on the first deck of the ecology structure. Auto Block Valve Plant Air to J-802 Ejector: This valve is used to supply air to the ejector so it can prime the suction line on the P-809's. This valve is labeled DO-325 and is located on the first deck of the ecology structure. Auto Block Valves on WP-800 Recycle: These valves are DO valves. They run either wide open or closed. These valves can change position in different steps. There are several other valves that work with these valves. These valves are labeled DO-326, 327, 328, and 329. They are located on the southeast side of WP-800. Auto P-802 Recycle Control Valve to WP-800: This valve is used to recycle the contents of WP-800 until it is treated to a desired pH. This valve is labeled AO-307 and is located southeast of WP-800. Auto WP-800 Level Control Valve (Small): This valve is used to drain WP-800. It drains either to D-803's or to the Outfall. When draining to the Outfall, it ramps open slowly, watching ditch pH. This valve, known as the small level control valve, is labeled AO-309 and is located south of the P-809's. Auto WP-800 Level Control Valve (Large): This valve, known as the big valve, is used to drain WP-800 to D-803's or to the Outfall. It ramps open slowly to the Outfall after the small valve is ramped open. It provides maximum flow to the Outfall or to D-803's. This valve is labeled AO-308 and is located south of the P-809's. 00 127593 CONFIDENTIAL JMTPOLLED COPY -JBJcCTTOUPDATP 1 MECHANICAL, EQUIPMENT P-802 A/B: These pumps pump the contents of WP-800 to several places. They can be used to recycle the contents through MX-800 for pH and hypochlorite treating, pump to the outfall trench, or pump to D-803 A/B. P-803: This is the pump for the leachate system on WP-800. It pumps the contents of this sump back into WP-800. P-809 A/B: These pumps pump out of WP-800 to the carb tower. The effluent is used instead of using good cell effluent on the carb tower to help eliminate waste and to save money. It also pumps to T-505 for pH control. P-801 A/B: These pumps pump 34% HC1 out of D-801 to several places. It is used in MX-800 to treat the contest of WP-800, used on outfall to pH treatment, and used on T. S. S. for pH treating. P-808: This is the pump for the leachate system for D-801. It pumps the contents of this sump to WP-800. P-800 A/B: These pumps are the sodium thiosulfate pumps for D-800. IT pumps sodium thiosulfate to MX-800 for hypochlorite treating. It pumps straight to WP-800 and to T. S. S. for hypochlorite treating. P-807: This is the pump for the leachate system for D-800. It pumps the contents of this sump to WP-800. INSTRUMENTATION AI-337 - Sodium Thiosulfate to WP-800: Indicates the amount of sodium thiosulfate to WP-800. This flow is controlled with valve AO-311. AI-336 - Sodium Thiosulfate to MX-800: Indicates the amount of sodium thiosulfate to MX-800. This flow is controlled with valve AO-312. CONTROLLED COc'-' DO 177594 CONFIDENT TAl MECHANICAL EQUIPMENT P-802 A/B: These pumps pump the contents of WP-800 to several places. They can be used to recycle the contents through MX-800 for pH and hypochlorite treating, pump to the outfall trench, or pump to D-803 A/B. P-803: This is the pump for the leachate system on WP-800. It pumps the contents of this sump back into WP-800. P-809 A/B: These pumps pump out of WP-800 to the carb tower. The effluent is used instead of using good cell effluent on the carb tower to help eliminate waste and to save money. It also pumps to T-505 for pH control. P-801 A/B: These pumps pump 34% HC1 out of D-801 to several places. It is used in MX-800 to treat the contest of WP-800, used on outfall to pH treatment, and used on T. S. S. for pH treating. P-808: This is the pump for the leachate system for D-801. It pumps the contents of this sump to WP-800. P-800 A/B: These pumps are the sodium thiosulfate pumps for D-800. IT pumps sodium thiosulfate to MX-800 for hypochlorite treating. It pumps straight to WP-800 and to T. S. S. for hypochlorite treating. P-807: This is the pump for the leachate system for D-800. It pumps the contents of this sump to WP-800. INSTRUMENTATION AI-337 - Sodium Thiosulfate to WP-800: Indicates the amount of sodium thiosulfate to WP-800. This flow is controlled with valve AO-311. AI-336 - Sodium Thiosulfate to MX-800: Indicates the amount of sodium thiosulfate to MX-800. This flow is controlled with valve AO-312. CONTROLLED CGC''" DO 127595 CONFIDENTIAL MECHANICAL EQUIPMENT P-802 A/B: These pumps pump the contents of WP-800 to several places. They can be used to recycle the contents through MX-800 for pH and hypochlorite treating, pump to the outfall trench, or pump to D-803 A/B. P-803: This is the pump for the leachate system on WP-800. It pumps the contents of this sump back into WP-800. P-809 A/B: These pumps pump out of WP-800 to the carb tower. The effluent is used instead of using good cell effluent on the carb tower to help eliminate waste and to save money. It also pumps to T-505 for pH control. P-80X A/B: These pumps pump 34% HC1 out of D-801 to several places. It is used in MX-800 to treat the contest of WP-800, used on outfall to pH treatment, and used on T. S. S. for pH treating. P-808: This is the pump for the leachate system for D-801. It pumps the contents of this sump to WP-800. P-800 A/B: These pumps are the sodium thiosulfate pumps for D-800. IT pumps sodium thiosulfate to MX-800 for hypochlorite treating. It pumps straight to WP-800 and to T. S. S. for hypochlorite treating. P-807: This is the pump for the leachate system for D-800. It pumps the contents of this sump to WP-800. INSTRUMENTATION AI-337 - Sodium Thiosulfate to WP-800: Indicates the amount of sodium thiosulfate to WP-800. This flow is controlled with valve AO-311. AI-336 - Sodium Thiosulfate to MX-800: Indicates the amount of sodium thiosulfate to MX-800. This flow is controlled with valve AO-312. CONTROLLED CODV DO conf idfnttaU AI-338 - HC1 to MX-800: Indicates the amount of HC1 to MX-800. This flow is controlled with valve AO-313. AI-306 - MX-800 pH Probe: Indicates the pH of MX-800. This probe is located on the outlet of MX-800. AI-316 - MX-800 pH Probe: Indicates the pH of MX-800. This probe is located on the outlet of MX-800. AI-307 - MX-800 Orp Probe Measures the amount of Ch in MX-800's effluent. This probe is located on the outlet of MX-800. AI-333 - P-802 Recycle Flow: Indicatesthe amount of recycle flow back to WP-800. This flow is controlled with valve AO-307. AI-332 - P-802 to Ditch: Indicates the amount of flow out of WP-800 to the ditch. This flow is controlled with valves AO-308 and 309. AI-331 - WP-800 Level Transmitter: Indicates the amount of level in WP-800. This level is controlled with valves AO-308 and AO-309. AI-342 D-800 Level Transmitter: Indicates the amount of level in D-800. AI-339 D-801 Level Transmitter: Indicates the amount of level in D-801. This level is controlled with valve AO-314. AI-340 - HC1 to D-801 from Solvents: Indicates the amount of HC1 flow coming into D-801 from Solvents. This flow is controlled with valve AO-314. AI-341 - Water Flow to T-800: Indicates the amount of H2O flow going to T-800. This flow is controlled with valve AO-315. AI-357 - D-800 High Level Switch: Indicates when D-800 has a high level. Note that this transmitter is an AI, not a DI. This trans mitter is an AI because the high level works off a milivolt reading instead of a manual switch. POLLED COY TC'JPD--- 1 D0 127597 CONFIDENTIAL AI-338 - HC1 to MX-800: Indicates the amount of HC1 to MX-800. This flow is controlled with valve AO-313. AI-306 - MX-800 pH Probe: Indicates the pH of MX-800. This probe is located on the outlet of MX-800. AI-316 - MX-800 pH Probe: Indicates the pH of MX-800. This probe is located on the outlet of MX-800. AI-307 - MX-800 Orp Probe Measures the amount of CI2 in MX-800's effluent. This probe is located on the outlet of MX-800. AI-333 - P-802 Recycle Flow: Indicates the amount of recycle flow back to WP-800. This flow is controlled with valve AO-307. AI-332 - P-802 to Ditch: Indicates the amount of flow out of WP-800 to the ditch. This flow is controlled with valves AO-308 and 309. AI-331 - WP-800 Level Transmitter: Indicates the amount of \ level in WP-800. AO-309. This level is controlled with valves AO-308 and AI-342 D-800 Level Transmitter: Indicates the amount of level in D-800. AI-339 D-801 Level Transmitter: Indicates the amount of level in D-801. This level is controlled with valve AO-314. AI-340 - HC1 to D-801 from Solvents: Indicates the amount of HC1 flow coming into D-801 from Solvents. This flow is controlled with valve AO-314. AI-341 - Water Flow to T-800: Indicates the amount of H2O flow going to T-800. This flow is controlled with valve AO-315. AI-357 - D-800 High Level Switch: Indicates when D-800 has a high level. Note that this transmitter is an AI, not a DI. This trans mitter is an AI because the high level works off a milivolt reading instead of a manual switch. no 127598 r.0NFlENT'tAl CCiV 1 ROLLED COPY TOU=Di"= 18 AI-338 - HC1 to MX-800: Indicates the amount of HCI to MX-800. This flow is controlled with valve AO-313. AI-306 - MX-800 pH Probe: Indicates the pH of MX-800. This probe is located on the outlet of MX-800. AI-316 - MX-800 pH Probe: Indicates the pH of MX-800. This probe is located on the outlet of MX-800. AI-307 - MX-800 Orp Probe Measures the amount of CI2 in MX-800's effluent. This probe is located on the outlet of MX-800. AI-333 - P-802 Recycle Flow: Indicatesthe amount of recycle flow back to WP-800. This flow is controlled with valve AO-307. AI-332 - P-802 to Ditch: Indicates the amount of flow out of WP-800 to the ditch. This flow is controlled with valves AO-308 and 309. AI-331 - WP-800 Level Transmitter: Indicates the amount of level in WP-800. This level is controlled with valves AO-308 and AO-309. AI-342 D-800 Level Transmitter: Indicates the amount of level in D-800. AI-339 D-801 Level Transmitter: Indicates the amount of level in D-801. This level is controlled with valve AO-314. AI-340 - HCI to D-801 from Solvents: Indicates the amount of HCI flow coming into D-801 from Solvents. This flow is controlled with valve AO-314. AI-341 - Water Flow to T-800: Indicates the amount of H2O flow going to T-800. This flow is controlled with valve AO-315. AI-3S7 - D-800 High Level Switch: Indicates when D-800 has a high level. Note that this transmitter is an AI, not a DI. This trans mitter is an AI because the high level works off a milivolt reading instead of a manual switch. DO 1?7599 CONFIDENTIAL COiV 1 -nOI ED COPY 1 AI-356 - D-801 High Level Switch: Indicates when D-801 has a high level. Note that this transmitter is an AI, not a DI. This trans mitter is an AI because the high level works off a milivolt reading instead of a manual switch. AI-317 - MX-800 ORP Probe: Measures the amount of CI2 in MX-800's effluent. This probe is located on the outlet of MX-800. DI-358 - D-800 Area Sump High Level Switch: Indicates when the level gets high in the sump. The level is controlled with P-807. DI-361 - D-801 Area Sump High Level Switch: Indicates when the level gets high in the sump. The level is controlled with P-808. DI-340 - WP-800 Sump High Level Switch: Indicates when the level gets high in the sump. The level is controlled with P-803. HAZARDS AND PROTECTIONS HCl: One of the hazards in this area is 34% HC1. This is stored in and pumped from D-801 to be used in MX-801 north ditch pH additions, and in MX-800 to pH treat contents of WP-800. HCl is a very corrosive acid. Minimum requires for line openings or handling of HCl is slicker suit, face shield, rubber boots, and rubber gloves. Cell Effluent: This is also known as scrubber effluent. It is 10% caustic that is used to scrub CI2 in the scrubbers. The cell effluent absorbs as much CI2 as possible before being dumped into WP-800. From here it is treated and sent to the outfall. Cell effluent is very corrosive and can cause serious chemical burns. Minimum require ments for handling cell effluent are rubber gloves, rubber boots, and monogoggles. Line openings require an additional slicker suit and face shield. Hypochlorites This is the CI2 that is absorbed in the cell effluent. If this is not treated, CI2 vapors would be released when treating for pH, causing a CONTROLLED copy SUBJECT TO UPDATE AI-356 - D-801 High Level Switch: Indicates when D-801 has a high level. Note that this transmitter is an AI, not a DI. This trans mitter is an AI becausethe high level worksoff a milivolt reading instead of a manual switch. AI-317 - MX-800 ORP Probe: Measures the amount of Ch in MX-800's effluent. This probe is located on the outlet of MX-800. DI-358 - D-800 Area Sump High Level Switch: Indicates when the level gets high in the sump. The level is controlled with P-807. DI-361 - D-801 Area Sump High Level Switch: Indicates when the level gets high in the sump. The level is controlled with P-808. DI-340 - WP-800 Sump High Level Switch: Indicates when the level gets high in the sump. The level is controlled with P-803. HAZARDS AND PROTECTIONS HC1: One of the hazards in this area is 34% HC1. This is stored in and pumped from D-801 to be used in MX-801 north ditch pH additions, and in MX-800 to pH treat contents of WP-800. HC1 is a very corrosive acid. Minimum requires for line openings or handling of HC1 is slicker suit, face shield, rubber boots, and rubber gloves. Cell Effluent: This is also known as scrubber effluent. It is 10% caustic that is used to scrub CI2 in the scrubbers. The cell effluent absorbs as much CI2 as possible before being dumped into WP-800. From here it is treated and sent to the outfall. Cell effluent is very corrosive and can cause serious chemical burns. Minimum require ments for handling cell effluent are rubber gloves, rubber boots, and monogoggles. Line openings require an additional slicker suit and face shield. Hypochlorites This is the CI2 that is absorbed in the cell effluent. If this is not treated, CI2 vapors would be released when treating for pH, causing a C0.\. ROLLED COPY SL'BJrCT TO UPDATE 00 127601 confidential AI-356 - D-801 High Level Switch! Indicates when D-801 has a high level. Note that this transmitter is an AI, not a DI. This trans mitter is an AI because the high level works off a milivolt reading instead of a manual switch. AI-317 - MX-800 ORP Probe: Measures the amount of CI2 in MX-800's effluent. This probe is located on the outlet of MX-800. DI-358 - D-800 Area Sump High Level Switch: Indicates when the level gets high in the sump. The level is controlled with P-807. DI-361 - D-801 Area Sump High Level Switch: Indicates when the level gets high in the sump. The level is controlled with P-808. DI-340 - WP-800 Sump High Level Switch: Indicates when the level gets high in the sump. The level is controlled with P-803. HAZARDS AND PROTECTIONS HC1: One of the hazards in this area is 34% HC1. This is stored in and pumped from D-801 to be used in MX-801 north ditch pH additions, and in MX-800 to pH treat contents of WP-800. HC1 is a very corrosive acid. Minimum requires for line openings or handling of HC1 is slicker suit, face shield, rubber boots, and rubber gloves. Cell Effluent: This is also known as scrubber effluent. It is 10% caustic that is used to scrub CI2 in the scrubbers. The cell effluent absorbs as much CI2 as possible before being dumped into WP-800. From here it is treated and sent to the outfall. Cell effluent is very corrosive and can cause serious chemical burns. Minimum require ments for handling cell effluent are rubber gloves, rubber boots, and monogoggles. Line openings require an additional slicker suit and face shield. Hypochlorites This is the CI2 that is absorbed in the cell effluent. If this is not treated, CI2 vapors would be released when treating for pH, causing a CO'XTnCLLED COPY SUBJECT TO UPDATE DO 127602 CONFIDENTIAL CI2 spill. This is also corrosive. Minimum requirements are rubber gloves and monogoggles. Sodium Thiosulfate: Sodium thiosulfate is a clear, amber-to- brown solution with a sulfur-like odor. It is used to kill hypo chlorites. Minimum requirements are rubber gloves and monogoggles. Rotating Equipment: As in any area, extra caution should be given when working around rotating equipment. Loose shirt tails and sleeves, long hair, and fingers should be kept away from rotating equipment. The pumps in WP-800 Area (P-802 A/B, P-801 A/B, P-800 A/B, P-809 A/B, P-803, P-807, and P-808) are auto start/stop pumps. Fiberglass Equipment: Some of the vessels and lines in the WP-800 Area are constructed of fiberglass. Caution should be used when tightening flanges. Never tighten flanges as tight as metal flanges. They may crack. Also, never beat on fiberglass equipment. One could puncture or crack the equipment. Noise: This unit is located next to Power II. As in any part of the block, hearing protection should be worn. OPERATING DISCIPLINE Sodium Thiosulfate: Whenever we receive a load of sodium thiosulfate, a sample must be taken off the truck and analyzed to assure that it is pure sodium thiosulfate. When the sample has been verified it is pure sodium thiosulfate, the truck can then be unloaded. Also, the sample should never have any settled volumes. If it has any, the truck should be sent back. DO 127603 CONFIDENT T Al. 'r \ ;7 -OLL. 0 COPY UPDATH 2 Cl2 spill. This is also corrosive. Minimum requirements are rubber gloves and monogoggles. Sodium Thiosulfate: Sodium thiosulfate is a clear, amber-to- brown solution with a sulfur-like odor. It is used to kill hypo chlorites. Minimum requirements are rubber gloves and monogoggles. Rotating Equipment: As in any area, extra caution should be given when working around rotating equipment. Loose shirt tails and sleeves, long hair, and fingers should be kept away from rotating equipment. The pumps in WP-800 Area (P-802 A/B, P-801 A/B, P-800 A/B, P-809 A/B, P-803, P-807, and P-808) are auto start/stop pumps. Fiberglass Equipment: Some of the vessels and lines in the WP-800 Area are constructed of fiberglass. Caution should be used when tightening flanges. Never tighten flanges as tight as metal flanges. They may crack. Also, never beat on fiberglass equipment. One could puncture or crack the equipment. Noise: This unit is located next to Power II. As in any part of the block, hearing protection should be worn. OPERATING DISCIPLINE Sodium Thiosulfate: Whenever we receive a load of sodium thiosulfate, a sample must be taken off the truck and analyzed to assure that it is pure sodium thiosulfate. When the sample has been verified it is pure sodium thiosulfate, the truck can then be unloaded. Also, the sample should never have any settled volumes. If it has any, the truck should be sent back. DO !77604 CONF r-~v_~OLL~D COPY *C r 7"' : icn-.-r- 20 Cl2 spill. This is also corrosive. Minimum requirements are rubber gloves and monogoggles. Sodium Thiosulfate: Sodium thiosulfate is a clear, amber-to- brown solution with a sulfur-like odor. It is used to kill hypo chlorites. Minimum requirements are rubber gloves and monogoggles. Rotating Equipment: As in any area, extra caution should be given when working around rotating equipment. Loose shirt tails and sleeves, long hair, and fingers should be kept away from rotating equipment. The pumps in WP-800 Area (P-802 A/B, P-801 A/B, P-800 A/B, P-809 A/B, P-803, P-807, and P-808) are auto start/stop pumps. Fiberglass Equipment: Some of the vessels and lines in the WP-800 Area are constructed of fiberglass. Caution should be used when tightening flanges. Never tighten flanges as tight as metal flanges. They may crack. Also, never beat on fiberglass equipment. One could puncture or crack the equipment. Noise: This unit is located next to Power II. As in any part of the block, hearing protection should be worn. OPERATING DISCIPLINE Sodium Thiosulfate: Whenever we receive a load of sodium thiosulfate, a sample must be taken off the truck and analyzed to assure that it is pure sodium thiosulfate. When the sample has been verified it is pure sodium thiosulfate, the truck can then be unloaded. Also, the sample should never have any settled volumes. If it has any, the truck should be sent back. DO 127605 CONFIDENTIAL = -lled copy r TD -JFD.A" 2 T. S. S. SECTION T. S. S. Section: The function of this Unit is to dissolve the solids in the clarifier bottoms stream, discharging a clear effluent to the outfall trench in order to comply with the Federal and State regulations covering the discharge of Total Suspended Solids (T.S.S.) from the Plant. Process Flows: The clarifier bottoms are first mixed with sodium thiosulfate to kill the hypochlorites, then with HC1 and recirculated liquid which is discharged into a tank and maintained at a pH of 2.0. The flow from the tank is split; part of it recirculates, and the rest discharges to the trench after a final acid injection point for additional pH control. Process water is added to the tanks' vent scrubber to scrub the CO2 vapors produced and to dilute the contents of the tank. TANKS AND VESSELS D-810: D-810 IS A 12' X 24' high FRP tank with a capacity of 20,000 gallons. This tank is used as a holding tank for clarifier bottom solids with a controlled pH of 2. It is located inside a diked area north of the H2 Recovery Unit. T-810: T-810 is a gas scrubber located on top of D-810. It is an 18 inch in diameter by 9 feet high scrubber with four feet of one inch Kynar Saddles Packing. SP-810: SP-810 serves as a pressure relief and vacuum breaking device for D-810. It is made out of FRP. The dimensions are two feet in diameter by three feet high. SP-811: SP-811 serves as a seal pot for D-810 overflow line. MX-810: MX-810 is the primary mixer in the line to the tank. This is where the HC1 is added to the clarifier bottoms and starts the reaction to remove the solids. The pH is dropped in this mixer from a pH of 11 to 12, down to a pH of 2. It is also located inside the diked area. DO 127606 CONFIDENTIAL 2 T. S. S. SECTION T. S. S. Section: The function of this Unit is to dissolve the solids in the clarifier bottoms stream, discharging a clear effluent to the outfall trench in order to comply with the Federal and State regulations covering the discharge of Total Suspended Solids (T.S.S.) from the Plant. Process Flows: The clarifier bottoms are first mixed with sodium thiosulfate to kill the hypochlorites, then with HC1 and recirculated liquid which is discharged into a tank and maintained at a pH of 2.0. The flow from the tank is split; part of it recirculates, and the rest discharges to the trench after a final acid injection point for additional pH control. Process water is added to the tanks' vent scrubber to scrub the CO2 vapors produced and to dilute the contents of the tank. TANKS AND VESSELS D-810: D-810 IS A 12' X 24' high FRP tank with a capacity of 20,000 gallons. This tank is used as a holding tank for clarifier bottom solids with a controlled pH of 2. It is located inside a diked area north of the H2 Recovery Unit. T-810: T-810 is a gas scrubber located on top of D-810. It is an 18 inch in diameter by 9 feet high scrubber with four feet of one inch Kynar Saddles Packing. SP-810: SP-810 serves as a pressure relief and vacuum breaking device for D-810. It is made out of FRP. The dimensions are two feet in diameter by three feet high. SP-811: SP-811 serves as a seal pot for D-810 overflow line. MX-8I0: MX-810 is the primary mixer in the line to the tank. This is where the HC1 is added to the clarifier bottoms and starts the reaction to remove the solids. The pH is dropped in this mixer from a pH of 11 to 12, down to a pH of 2. It is also located inside the diked area. . _._i: cc?v DO 127607 CONFIDENTIAL T. S. S. SECTION T. S. S. Section: The function of this Unit is to dissolve the solids in the clarifier bottoms stream, discharging a clear effluent to the outfall trench in order to comply with the Federal and State regulations covering the discharge of Total Suspended Solids (T.S.S.) from the Plant. Process Flows: The clarifier bottoms are first mixed with sodium thiosulfate to kill the hypochlorites, then with HC1 and recirculated liquid which is discharged into a tank and maintained at a pH of 2.0. The flow from the tank is split; part of it recirculates, and the rest discharges to the trench after a final acid injection point for additional pH control. Process water is added to the tanks' vent scrubber to scrub the CO2 vapors produced and to dilute the contents of the tank. TANKS AND VESSELS D-810: D-810 IS A 12' X 24' high FRP tank with a capacity of 20,000 gallons. This tank is used as a holding tank for clarifier bottom solids with a controlled pH of 2. It is located inside a diked area north of the H2 Recovery Unit. T-810: T-810 is a gas scrubber located on top of D-810. It is an 18 inch in diameter by 9 feet high scrubber with four feet of one inch Kynar Saddles Packing. SP-810: SP-810 serves as a pressure relief and vacuum breaking device for D-810. It is made out of FRP. The dimensions are two feet in diameter by three feet high. SP-811: SP-811 serves as a seal pot for D-810 overflow line. MX-810: MX-810 is the primary mixer in the line to the tank. This is where the HC1 is added to the clarifier bottoms and starts the reaction to remove the solids. The pH is dropped in this mixer from a pH of 11 to 12, down to a pH of 2. It is also located inside the diked area. - 1 t r u -> DO 127608 CONFIDENTIAL MX-811: MX-811 is the secondary mixer located in the discharge line to the ditch. VALVES Process Water to T-810: This valve is used to control the process water to T-810, being used to scrub the CO2 vapors and dilute the contents of the tank. This valve is labeled AO-401. This valve normally runs the in flow control mode of the operation. It is located on the east side of D-810. Sodium ThiostiTfate to MX-810u----- -This valve is u$ed~ to add sodium thiosu/fate \to kill the hypochlorites in D-810. /Without this we could ha^e a Clfe spill outT-810. The valve is^labeled AO-402 ana is locked on trie first deck of the ecology-structure. This valve norra^lly/runs in flow coptrol. ^ Clarifier Bottoms to MX-810:This valve is used to control the Clarifier Bottoms to the T. S. S. Unit. This valve normally runs in flow control. The valve is labeled AO-216 and is located west of D-102 in the piperack. HC1 to MX-810: This valve is used to control the pH of the clarifier bottoms to D-810. This valve has two different control schemes. It can control in local pH control or cascade control. This valve is labeled AO-403 and is located north of the P-810's. Recycle Valve Back to D-810: This valve is used to control the recycle flow at a constant rate. It responds in conjunction with the flow to the ditch. If the valve to the ditch opens, the recycle valve closes to maintain a constant flow. This valve is labeled AO-405 and is located west of the P-810's. D-810 LCV Flow to Ditch: This valve is used to maintain a constant level in D-810. It is labeled AO-406 and is located west of the P-810's. _~-wLsDCCPY sLBJnCi TO UPDATE DO 177609 CONFIDENTIAL -> MX-811: MX-811 is the secondary mixer located in the discharge line to the ditch. VALVES Process Water to T-810: This valve is used to control the process water to T-810, being used to scrub the CO2 vapors and dilute the contents of the tank. This valve is labeled AO-401. This valve normally runs the in flow control mode of the operation. It is located on the east side of D-810. Soydium Thi^sliTfate to MX-810u~--This valve is used* to add sc ' ochlorites, in D-810. /Without this w '-810. Tlie valve isiabeled AO;402 ar F the ecology -structure. This valve n( Clarifier Bottoms to MX-810:This valve is used to control the Clarifier Bottoms to the T. S. S. Unit. This valve normally runs in flow control. The valve is labeled AO-216 and is located west of D-102 in the piperack. HC1 to MX-810: This valve is used to control the pH of the clarifier bottoms to D-810. This valve has two different control schemes. It can control in local pH control or cascade control. This valve is labeled AO-403 and is located north of the P-810's. Recycle Valve Back to D-810: This valve is used to control the recycle flow at a constant rate. It responds in conjunction with the flow to the ditch. If the valve to the ditch opens, the recycle valve closes to maintain a constant flow. This valve is labeled AO-405 and is located west of the P-810's. D-810 LCV Flow to Ditch: This valve is used to maintain a constant level in D-810. It is labeled AO-406 and is located west of the P-810's. -LED COPY oLSJcCT TO UPDATE DO 127610 CONFTDFNTIAl MX-811: MX-811 is the secondary mixer located in the discharge line to the ditch. VALVES Process Water to T-810: This valve is used to control the process water to T-810, being used to scrub the CO2 vapors and dilute the contents of the tank. This valve is labeled AO-401. This valve normally runs the in flow control mode of the operation. It is located on the east side of D-810. Sodium ThiosiiTfate to MX-810u------This valve is usetL to add sodium thiosulfate p kill the hypochlorites in D-810. /Without this wt could haa Cl^ spill oupdf T-810. The valve isTabeled AO-402 and is locjued on the first deck of the ecology' Structure. This valve normaily/runs in flo^ copfrol. Clarifier Bottoms to MX-810:This valve is used to control the Clarifier Bottoms to the T. S. S. Unit. This valve normally runs in flow control. The valve is labeled AO-216 and is located west of D-102 in the piperack. HC1 to MX-810: This valve is used to control the pH of the clarifier bottoms to D-810. This valve has two different control schemes. It can control in local pH control or cascade control. This valve is labeled AO-403 and is located north of the P-810's. Recycle Valve Back to D-810: This valve is used to control the recycle flow at a constant rate. It responds in conjunction with the flow to the ditch. If the valve to the ditch opens, the recycle valve closes to maintain a constant flow. This valve is labeled AO-405 and is located west of the P-810's. D-810 LCV Flow to Ditch: This valve is used to maintain a constant level in D-810. It is labeled AO-406 and is located west of the P-810's. - ' 1.--LED CCrY SuSvcCT TO UPDATE DO 127611 CONFIDENTIAL 22 HCl to MX-811: As of right now, we do not use this mixer, but it is available if needed. The valve is not shown on the graphics, but is labeled AO-404 and is located west of MX-811. MECHANICAL EQUIPMENT P-810 A/B: These pumps pump out of the tank at a constant rate of 150 gpm, and the flow split between re-circulation and the flow to the trench for level control. P-811: This is the sump pump for the T. S. S. Unit diked area. This pump pumps the diked area to the ditch. INSTRUMENTATION AI-401 Flow Transmitter on Water to T-810: Indicates amount of water to T-810. This flow is controlled with valve AO-401. the ATM02 Flow^Tfitusmitter ojl--podium Thiosulfate to MX-810: Indicates the amount \>f sodium^ thiosulfate to-'MX-81(>.N^JThis floW\|s/ controlled, with valve ACL402. ''--' AI-451 Flow Transmitter on Clarifier Bottoms to MX-810: Indicates the amount of clarifier bottoms going to MX-810. This flow is controlled by valve AO-216. AI-403 Flow Transmitter on HCl to MX-8101ndicates the amount of acid flow going to MX-810. This flow is controlled with valve AO-403. AI-405 Flow Transmitter on P-810's Total Flow:Indicates the amount of total flow the P-810's are putting out. AI-406 Flow Transmitter on P-810's Flow to Ditch: Indicates the amount of flow out of T. S. S. to the ditch. This flow is controlled with valve AO-406. DO 1.27612 CONFIDENTIAL ~r 7 TO UPDATE HC1 to MX-8X1: As of right now, we do not use this mixer, but it is available if needed. The valve is not shown on the graphics, but is labeled AO-404 and is located west of MX-811. MECHANICAL EQUIPMENT P-810 A/B: These pumps pump out of the tank at a constant rate of 150 gpm, and the flow split between re-circulation and the flow to the trench for level control. P-811: This is the sump pump for the T. S. S. Unit diked area. This pump pumps the diked area to the ditch. INSTRUMENTATION AI-401 FlowTransmitter on Water to T-810: Indicates amount of water to T-810. This flow is controlled with valve AO-401. the ATM02 Flow^/Transmitteron^-^odium Thiosulfate to MX-810: Indicates the amount \^f sodium" thiosulfate to MX-810;. JThrs flou\isj controlled with valve AQ=402. ''-- AI-451 FlowTransmitter on Clarifier Bottoms to MX-810: Indicates the amount of clarifier bottoms going to MX-810. This flow is controlled by valve AO-216. AI-403 Flow Transmitter on HC1 to MX-810indicates the amount of acid flow going to MX-810. This flow is controlled with valve AO-403. AI-405 FlowTransmitter on P-810's Total Flow:Indicates the amount of total flow the P-810's are putting out. AI-406 Flow Transmitter on P-810's Flow to Ditch: Indicates the amount of flow out of T. S. S. to the ditch. This flow is controlled with valve AO-406. 00 i?76i3 CONFTDFNTTAL TO UrDA i E 23 HC1 to MX-811: As of right now, we do not use this mixer, but it is available if needed. The valve is not shown on the graphics, but is labeled AO-404 and is located west of MX-811. MECHANICAL EQUIPMENT P-810 A/B: These pumps pump out of the tank at a constant rate of 150 gpm, and the flow split between re-circulation and the flow to the trench for level control. P-811: This is the sump pump for the T. S. S. Unit diked area. This pump pumps the diked area to the ditch. INSTRUMENTATION AI-401 Flow Transmitter on Water to T-810: Indicates amount of water to T-810. This flow is controlled with valve AO-401. the ,* AI-451 Flow Transmitter on Clarifier Bottoms to MX-810: Indicates the amount of clarifier bottoms going to MX-810. This flow is controlled by valve AO-216. AI-403 Flow Transmitter on HC1 to MX-810indicates the amount of acid flow going to MX-810. This flow is controlled with valve AO-403. AI-405 Flow Transmitter on P-810's Total Flow: the amount of total flow the P-810's are putting out. Indicates AI-406 Flow Transmitter on P-810's Flow to Ditch: Indicates the amount of flow out of T. S. S. to the ditch. This flow is controlled with valve AO-406. DO 127614 CONFIDENTIAL C O 2 Vapors: The CO2 vapors are a result of the neutralization process (when the acid is added to the bottom solids). It is a colorless, odorless gas, and is vented out of T-810. Sodium Thiosulfate: Sodium thiosulfate is a clear amber-tobrown solution with a sulfur-like odor. It is used to react with the hypochlorites in the bottom solids. When handling, minimum requirements to be worn are monogoggles and rubber gloves. Rotating Equipment: As in any area, extra caution should be taken when working around rotating equipment. Loose shirt tails, long hair, and fingers should be kept away from rotating equipment. The pumps in the T. S. S. Area (P-810 A/B and P-811) are auto start/stop pumps. Fiberglass Equipment: The lines and equipment in the T. S. S. area are mostly constructed of fiberglass. Caution should be used when tightening flanges. Never tighten flanges as tight as metal flanges. They may crack. Also, never beat on fiberglass lines. You could puncture or crack the lines. H 2 Recovery: It is important to know that the T. S. S. Unit is located by H2 Recovery. When any job is done in the T. S. S. Area, consideration should be given to the potential of creating a fire or explosion in the H2 Recovery Unit. Noise: This unit is located between H2 Recovery and Power II. Both are high noise areas. As in any part of the block, hearing protection should be worn. DO 127615 CONFIDENT IA1 3lsjS?!EDCOPy -j_CTTO UFDAT? 25 C O 2 Vapors: The CO2 vapors are a result of the neutralization process (when the acid is added to the bottom solids). It is a colorless, odorless gas, and is vented out of T-810. Sodium Thiosulfate: Sodium thiosulfate is a clear amber-tobrown solution with a sulfur-like odor. It is used to react with the hypochlorites in the bottom solids. When handling, minimum requirements to be worn are monogoggles and rubber gloves. Rotating Equipment: As in any area, extra caution should be taken when working around rotating equipment. Loose shirt tails, long hair, and fingers should be kept away from rotating equipment. The pumps in the T. S. S. Area (P-810 A/B and P-811) are auto start/stop pumps. Fiberglass Equipment: The lines and equipment in the T. S. S. area are mostly constructed of fiberglass. Caution should be used when tightening flanges. Never tighten flanges as tight as metal flanges. They may crack. Also, never beat on fiberglass lines. You could puncture or crack the lines. H 2 Recovery: It is important to know that the T. S. S. Unit is located by H2 Recovery. When any job is done in the T. S. S. Area, consideration should be given to the potential of creating a fire or explosion in the H2 Recovery Unit. Noise: This unit is located between H2 Recovery and Power II. Both are high noise areas. As in any part of the block, hearing protection should be worn. DO 127616 CONFIDENTIAL ^SjIcT Tn C0PY TO UPQAT= CO 2 Vapors: The CO2 vapors are a result of the neutralization process (when the acid is added to the bottom solids). It is a colorless, odorless gas, and is vented out of T-810. Sodium Thiosulfate: Sodium thiosulfate is a clear amber-tobrown solution with a sulfur-like odor. It is used to react with the hypochlorites in the bottom solids. When handling, minimum requirements to be worn are monogoggles and rubber gloves. Rotating Equipment: As in any area, extra caution should be taken when working around rotating equipment. Loose shirt tails, long hair, and fingers should be kept away from rotating equipment. The pumps in the T. S. S. Area (P-810 A/B and P-811) are auto start/stop pumps. Fiberglass Equipment: The lines and equipment in the T. S. S. area are mostly constructed of fiberglass. Caution should be used when tightening flanges. Never tighten flanges as tight as metal flanges. They may crack. Also, never beat on fiberglass lines. You could puncture or crack the lines. H 2 Recovery: It is important to know that the T. S. S. Unit is located by H2 Recovery. When any job is done in the T. S. S. Area, consideration should be given to the potential of creating a fire or explosion in the H2 Recovery Unit. Noise: This unit is located between H2 Recovery and Power II. Both are high noise areas. As in any part of the block, hearing protection should be worn. DO 1P7617 confidential i;'53?V7ED copy "CT To UPD.iT- 2 AI-434 T. S. S. pH Probe: Indicates the pH on the T. S. S. Unit. It is located between the mixer and D-810. AI-454 T. S. S. pH Probe: Indicates the pH on the T. S. S. Unit. It is located between the mixer and D-810. AI-464 T. S. S. pH Probe: Indicates the pH on the T. S. S. Unit. It is located between the mixer and D-810. AI-456 D-810 Level Transmitter: Indicates the level in D-810. This level is controlled with valve AO-406. DI-452 D-810 High Level Switch: Indicates when D-810 gets a high level. This does not indicate a level. It's just a switch that indicates on or off. When the level is high, the switch is on. When the level is below the switch, the switch is off. AI-455 T. S. S. Sump Level Transmitter: Indicates the level in the sump inside the T. S. S. diked area. DI-410 T. S. S. Sump High Level Switchlndicates when the sump in the T. S. S. dike area gets a high level. This switch indicates on or off. When the level is high, the switch is on. When the level is below the switch, the switch is off. HAZARDS AND PROTECTION HCI: One of the greatest hazards in this area is HC1. This is used in MX-810 to pH control D-810 at a 2 pH. HCI (Hydrochloric Acid) is a very corrosive acid. Minimum requirements for HCI line opening or handling is a slicker suit, face shield, rubber gloves and rubber boots. Bottom Solids: This is the clarifier bottoms that is pumped to T. S. S. for neutralization. The bottom solids contain some excess caustic, to a pH of 11 to 12, saturated salt, about 100 ppm hypochlorites and solids in suspension which are mainly calcium and magnesium carbonates and hydroxides. Releasing solids to the Outfall could violate our water permit and result in costly fines. Minimum requirements for a line opening is slicker suit, face shield, rubber gloves, and rubber boots. nn confidential CONTROLLED COPY O,' .or*-to l orio AI-434 T. S. S. pH Probe: Indicates the pH on the T. S. S. Unit. It is located between the mixer and D-810. AI-454 T. S. S. pH Probe: Indicates the pH on the T. S. S. Unit. It is located between the mixer and D-810. AI-464 T. S. S. pH Probe: Indicates the pH on the T. S. S. Unit. It is located between the mixer and D-810. AI-456 D-810 Level Transmitter: Indicates the level in D-810. This level is controlled with valve AO-406. DI-452 D-810 High Level Switch: Indicates when D-810 gets a high level. This does not indicate a level. It's just a switch that indicates on or off. When the level is high, the switch is on. When the level is below the switch, the switch is off. AI-455 T. S. S. Sump Level Transmitter: Indicates the level in the sump inside the T. S. S. diked area. DI-410 T. S. S. Sump High Level Switchindicates when the sump in the T. S. S. dike area gets a high level. This switch indicates on or off. When the level is high, the switch is on. When the level is below the switch, the switch is off. HAZARDS AND PROTECTION HC1: One of the greatest hazards in this area is HC1. This is used in MX-810 to pH control D-810 at a 2 pH. HC1 (Hydrochloric Acid) is a very corrosive acid. Minimum requirements for HC1 line opening or handling is a slicker suit, face shield, rubber gloves and rubber boots. Bottom Solids: This is the clarifier bottoms that is pumped to T. S. S. for neutralization. The bottom solids contain some excess caustic, to a pH of 11 to 12, saturated salt, about 100 ppm hypochlorites and solids in suspension which are mainly calcium and magnesium carbonates and hydroxides. Releasing solids to the Outfall could violate our water permit and result in costly fines. Minimum requirements for a line opening is slicker suit, face shield, rubber gloves, and rubber boots. COYT^OLLED COPY -f T0 '.'-nr- O 127619 confi^nTTAL' 24 AI-434 T. S. S. pH Probe: Indicates the pH on the T. S. S. Unit. It is located between the mixer and D-810. AI-454 T. S. S. pH Probe: Indicates the pH on the T. S. S. Unit. It is located between the mixer and D-810. AI-464 T. S. S. pH Probe: Indicates the pH on the T. S. S. Unit. It is located between the mixer and D-810. AI-456 D-810 Level Transmitter: Indicates the level in D-810. This level is controlled with valve AO-406. DI-452 D-810 High Level Switch: Indicates when D-810 gets a high level. This does not indicate a level. It's just a switch that indicates on or off. When the level is high, the switch is on. When the level is below the switch, the switch is off. AI-455 T. S. S. Sump Level Transmitter: Indicates the level in the sump inside the T. S. S. diked area. Dl-410 T. S. S. Sump High Level Switchindicates when the sump in the T. S. S. dike area gets a high level. This switch indicates on or off. When the level is high, the switch is on. When the level is below the switch, the switch is off. HAZARPS ANP PROTECTION HC1: One of the greatest hazards in this area is HC1. This is used in MX-810 to pH control D-810 at a 2 pH. HC1 (Hydrochloric Acid) is a very corrosive acid. Minimum requirements for HC1 line opening or handling is a slicker suit, face shield, rubber gloves and rubber boots. Bottom Solids: This is the clarifier bottoms that is pumped to T. S. S. for neutralization. The bottom solids contain some excess caustic, to a pH of 11 to 12, saturated salt, about 100 ppm hypochlorites and solids in suspension which are mainly calcium and magnesium carbonates and hydroxides. Releasing solids to the Outfall could violate our water permit and result in costly fines. Minimum requirements for a line opening is slicker suit, face shield, rubber gloves, and rubber boots. DO 127620 CONFIDENTIAL CONTROLLED COPY ' L * -J TQ 1 "r iTi LOW PRESSURE SCRUBBER SECTION TANKS AND VESSELS SP-250: SP-250 is a 6 ft. in diameter F. R. P. seal pot designed for a 2" water seal. It has a 42" inlet connecting to the wet Cb header, and a 36" outlet connecting to the Venturi scrubber, J-250. J-250: J-250 is an FRP Venturi with a titanium nozzle, designed for 15,000 ACFM. This is equivalent to 100,000 lbs. per hour of CI2 gas. The cell effluent design is 2,000 gpm at 60 psig nozzle pressure. Under these conditions, the Venturi will hold 4" water vacuum at the inlet and will have 95% scrubbing efficiency. T-250: T-250 is a 6 ft. in diameter FRP packed tower with two 10 ft. sections packed with 2" Intalox Kynar saddles. The approximate overall height of the tower is 64 feet. It is supported by a structure and has a flanged removable bottom with an overflow flange. The liquid contents of the tower bottom are continuously recirculated through the lower section of packing by P-251 A/B, keeping the lower section of packing wet at all times. VALVES P-250 PCV to D-301: This valve is used to control the cell effluent line pressure to ecology. The valve protects the line from pressuring up too quickly, knocking the line out of the rack. This valve is located north of P-250's and is labeled AO-322 on the Ecology Can. P-305 A/B to Ecology: This valve is used to keep the cell effluent header pressure up on line to ecology when the P-250's are down. This valve is a DO which means it is wide open or closed. This is another way of protecting the line from hammering out the rack. The valve is labeled DO-334. It is a fail open valve. It is located south of the P-250's. Process Water to T-250: This valve is used to wash T-250 when the differential pressure gets too high2NT^ctns^p^jjat|es plugging OBJECT TO UPDATE DO 1276?1 CONFIDENT I Al LOW PRESSURE SCRUBBER SECTION TANKS AND VESSELS SP-250: SP-250 is a 6 ft. in diameter F. R. P. seal pot designed for a 2" water seal. It has a 42" inlet connecting to the wet Ch header, and a 36" outlet connecting to the Venturi scrubber, J-250. J-250: J-250 is an FRP Venturi with a titanium nozzle, designed for 15,000 ACFM. This is equivalent to 100,000 lbs. per hour of CI2 gas. The cell effluent design is 2,000 gpm at 60 psig nozzle pressure. Under these conditions, the Venturi will hold 4" water vacuum at the inlet and will have 95% scrubbing efficiency. T-250: T-250 is a 6 ft. in diameter FRP packed tower with two 10 ft. sections packed with 2" Intalox Kynar saddles. The approximate overall height of the tower is 64 feet. It is supported by a structure and has a flanged removable bottom with an overflow flange. The liquid contents of the tower bottom are continuously recirculated through the lower section of packing by P-251 A/B, keeping the lower section of packing wet at all times. Y^LYES P-250 PCV to D-301: This valve is used to control the cell effluent line pressure to ecology. The valve protects the line from pressuring up too quickly, knocking the line out of the rack. This valve is located north of P-250's and is labeled AO-322 on the Ecology Can. P-305 A/B to Ecology: This valve is used to keep the cell effluent header pressure up on line to ecology when the P-250's are down. This valve is a DO which means it is wide open or closed. This is another way of protecting the line from hammering out the rack. The valve is labeled DO-334. It is a fail open valve. It is located south of the P-250's. Process Water to T-250: This valve is used to wash T-250 when the differential pressure gets too higlONTf^hris^jp^j^ja^es plugging c J3JEC7 TO UPDATE DO 1.2762? CONFIDENTIAL LOW PRESSURE SCRUBBER SECTION TANKS AND VESSELS SP-250: SP-250 is a 6 ft. in diameter F. R. P. seal pot designed for a 2" water seal. It has a 42" inlet connecting to the wet Ch header, and a 36" outlet connecting to the Venturi scrubber, J-250. J-250: J-250 is an FRP Venturi with a titanium nozzle, designed for 15,000 ACFM. This is equivalent to 100,000 lbs. per hour of CI2 gas. The cell effluent design is 2,000 gpm at 60 psig nozzle pressure. Under these conditions, the Venturi will hold 4" water vacuum at the inlet and will have 95% scrubbing efficiency. T-250: T-250 is a 6 ft. in diameter FRP packed tower with two 10 ft. sections packed with 2" Intalox Kynar saddles. The approximate overall height of the tower is 64 feet. It is supported by a structure and has a flanged removable bottom with an overflow flange. The liquid contents of the tower bottom are continuously recirculated through the lower section of packing by P-251 A/B, keeping the lower section of packing wet at all times. YALYES P-250 PCV to D-301: This valve is used to control the cell effluent line pressure to ecology. The valve protects the line from pressuring up too quickly, knocking the line out of the rack. This valve is located north of P-250's and is labeled AO-322 on the Ecology Can. P-305 A/B to Ecology: This valve is used to keep the cell effluent header pressure up on line to ecology when the P-250's are down. This valve is a DO which means it is wide open or closed. This is another way of protecting the line from hammering out the rack. The valve is labeled DO-334. It is a fail open valve. It is located south of the P-250's. Process Water to T-250: This valve is used to wash T-250 when the differential pressure gets too high^NTr^ftriSHjptdje^t^s plugging c~3JHCT TO UPDATE OO 1.27623 CONFI^>FNTtA ' problems with T-250. It is important not to leave this valve open because it will dilute the cell effluent in T-250, thus preventing it to scrub Ch if a spill was to occur. This valve is located top deck of ecology and is labeled AO-321 on the Ecology Mod Can. Cell Effluent to T-250 (Top): This valve is used to add cell effluent to T-250 when the CI2 probes detect CI2. It is also a backup system for recirculating flow failure. This valve is located on top of ecology and is labeled AO-323 on the Ecology Mod Can. It is a fail open valve. Cell Effluent to J-250: This valve is used to supply cell effluent to J-250. This valve opens in the event of a high cell header pressure. The cell effluent flow is regulated by the Mod to maintain a CI2 header pressure of 2" water. This valve is located on the middle deck of ecology and is labeledAO-324. This is also a fail open valve and can be found on the Ecology Mod Can. P-251 Recirculation T-250 (Bottom): This valve is used to recycle the cell effluent in T-250 to keep the packing wet at all times. This valve normally runs open, and the flow is controlled by variable drive pump P-251 A. This valve also works with the cell effluent valve to J-251 during cell startups. This valve is labeled AO-327 and is located on the second deck of ecology. MECHANICAL EQUIPMENT P-250 A/B: These pumps supply fresh cell effluent to all of ecology. The header pressure on cell effluent to ecology is maintained by the P-305's, but if the scrubbers were activated, the P-250's would start up and control. These pumps are 2400 volt pumps with a capacity of 3,000 gpm. These pumps are located on the west side of D-301 and are auto start pumps. P-305 A/B: These pumps maintain the header pressure on the cell effluent supply to the Ecology Area. They maintain the line pressure to prevent the P-250's from hammering the line out of the piperack. These pumps are located on the southeast side of D-301. It is important to know that these pumps supply the cell effluent feed to the Caustic Plant. DO 127624 confi^nt1aL 27 "nCLLED COPY C UPDATE problems with T-250. It is important not to leave this valve open because it will dilute the cell effluent in T-250, thus preventing it to scrub Cl2 if a spill was to occur. This valve is located top deck of ecology and is labeled AO-321 on the Ecology Mod Can. Cell Effluent to T-250 (Top): This valve is used to add cell effluent to T-250 when the CI2 probes detect CI2. It is also a backup system for recirculating flow failure. This valve is located on top of ecology and is labeled AO-323 on the Ecology Mod Can. It is a fail open valve. Cell Effluent to J-250: This valve is used to supply cell effluent to J-250. This valve opens in the event of a high cell header pressure. The cell effluent flow is regulated by the Mod to maintain a CI2 header pressure of 2" water. This valve is located on the middle deck of ecology and is labeled AO-324. This is also a fail open valve and can be found on the Ecology Mod Can. P-251 Recirculation T-250 (Bottom): This valve is used to recycle the cell effluent in T-250 to keep the packing wet at all times. This valve normally runs open, and the flow is controlled by variable drive pump P-251 A. This valve also works with the cell effluent valve to J-251 during cell startups. This valve is labeled AO-327 and is located on the second deck of ecology. MECHANICAL EQUIPMENT P-250 A/B: These pumps supply fresh cell effluent to all of ecology. The header pressure on cell effluent to ecology is maintained by the P-305's, but if the scrubbers were activated, the P-250's would start up and control. These pumps are 2400 volt pumps with a capacity of 3,000 gpm. These pumps are located on the west side of D-301 and are auto start pumps. P-305 A/B: These pumps maintain the header pressure on the cell effluent supply to the Ecology Area. They maintain the line pressure to prevent the P-250's from hammering the line out of the piperack. These pumps are located on the southeast side of D-301. It is important to know that these pumps supply the cell effluent feed to the Caustic Plant. D0 i27625 CONFIDENTIAL xo .-CLLED COPY TC UPDATE problems with T-250. It is important not to leave this valve open because it will dilute the cell effluent in T-250, thus preventing it to scrub CI2 if a spill was to occur. This valve is located top deck of ecology and is labeled AO-321 on the Ecology Mod Can. Cell Effluent to T-250 (Top): This valve is used to add cell effluent to T-250 when the CI2 probes detect CI2. It is also a backup system for recirculating flow failure. This valve is located on top of ecology and is labeled AO-323 on the Ecology Mod Can. It is a fail open valve. Cell Effluent to J-250: This valve is used to supply cell effluent to J-250. This valve opens in the event of a high cell header pressure. The cell effluent flow is regulated by the Mod to maintain a CI2 header pressure of 2" water. This valve is located on the middle deck of ecology and is labeled AO-324. This is also a fail open valve and can be found on the Ecology Mod Can. P-251 Recirculation T-250 (Bottom): This valve is used to recycle the cell effluent in T-250 to keep the packing wet at all times. This valve normally runs open, and the flow is controlled by variable drive pump P-251 A. This valve also works with the cell effluent valve to J-251 during cell startups. This valve is labeled AO-327 and is located on the second deck of ecology. MECHANICAL ..E.OUIEMEKT P-250 A/B: These pumps supply fresh cell effluent to all of ecology. The header pressure on cell effluent to ecology is maintained by the P-305's, but if the scrubbers were activated, the P-250's would start up and control. These pumps are 2400 volt pumps with a capacity of 3,000 gpm. These pumps are located on the west side of D-301 and are auto start pumps. P-305 A/B: These pumps maintain the header pressure on the cell effluent supply to the Ecology Area. They maintain the line pressure to prevent the P-250's from hammering the line out of the piperack. These pumps are located on the southeast side of D-301. It is important to know that these pumps supply the cell effluent feed to the Caustic Plant. DO 127626 CONFIDENTIAL. t'_ I 'RO'-LHD COPY ~C UPDATE P-2S1 A/B: These pumps recirculate at a design rate of 400 gpm, keeping the lower section of packing wet at all times. These pumps also provide the re-circulation for the startup Venturi J-251. P-251 A is the main pump and is equipped with a variable speed drive. P-251 B is only used as an installed spare. The capacity of each pump is 800 gpm. INSTRUMENTATION AI-344 * Total Cell Effluent Flow to Scrubbers: Indicates the amount of cell effluent makeup flow is going to the scrubbers. It is located south of WP-800. AI-346 - Cell Effluent Flow Transmitter to J-250: Indicates the amount of cell effluent flow going to J-250. This flow is controlled by valve AO-324. AI-345 - Fresh Cell Effluent to T-250 : Indicates theamount of cell effluent flow being made up to T-250. This flow is controlled with valve AO-323. AI-350 - T-250 Level Transmitter: Indicates the level in T-250. This level is controlled with valve AO-323. AI-347 - Water to T-250 Flow Transmitter: Indicates the process water flow to T-250. This flow is controlled with AO-321. DI-367 - Water Flow Switch to SP-250: This switch is to indicate that there is a water flow going to SP-250. This flow ensures that SP-250 stays full and sealed. DI-355 - SP-250 Level Switch: Indicates the level in SP-250. This level is controlled with a manually restricted valve. AI-349 - T-250 Differential Pressure Transmitter: the amount of differential pressure across T-250. Indicates DO 127627 CONFIDENTIAL OLLED COPY T ` o UPDATE 2 P-251 A/B: These pumps recirculate at a design rate of 400 gpm, keeping the lower section of packing wet at all times. These pumps also provide the re-circulation for the startup Venturi J-251. P-251 A is the main pump and is equipped with a variable speed drive. P-251 B is only used as an installed spare. The capacity of each pump is 800 gpm. INSTRUMENTATION AI-344 Total Cell Effluent Flow to Scrubbers:Indicates amount of cell effluent makeup flow is going to the scrubbers. located south of WP-800. the It is AI-346 - Cell Effluent Flow Transmitter to J-250: Indicates the amount of cell effluent flow going to J-250. This flow is controlled by valve AO-324. AI-345 - Fresh Cell Effluent to T-250 : Indicates theamount of cell effluent flow being made up to T-250. This flow is controlled with valve AO-323. AI-350 - T-250 Level Transmitter: Indicates the T-250. This level is controlled with valve AO-323. level in AI-347 - Water to T-250 Flow Transmitter: Indicates the process water flow to T-250. This flow is controlled with AO-321. DI-367 - Water Flow Switch to SP-250: This switch is to indicate that there is a water flow going to SP-250. This flow ensures that SP-250 stays full and sealed. DI-355 - SP-250 Level Switch: Indicates the level in SP-250. This level is controlled with a manually restricted valve. AI-349 - T-250 Differential Pressure Transmitter: the amount of differential pressure across T-250. Indicates DO CONFIDENTIAL OILED COPY -- -CT TO UPDATE 2 P-251 A/B: These pumps recirculate at a design rate of 400 gpm, keeping the lower section of packing wet at all times. These pumps also provide the re-circulation for the startup Venturi J-251. P-251 A is the main pump and is equipped with a variable speed drive. P-251 B is only used as an installed spare. The capacity of each pump is 800 gpm. INSTRUMENTATION AI-344 - Total Cell Effluent Flow to Scrubbers:Indicates amount of cell effluent makeup flow is going to the scrubbers. located south of WP-800. the It is AI-346 - Cell Effluent Flow Transmitter to J-250: Indicates the amount of cell effluent flow going to J-250. This flow is controlled by valve AO-324. AI-345 - Fresh Cell Effluent to T-250 : Indicates theamount of cell effluent flow being made up to T-250. This flow is controlled with valve AO-323. AI-350 - T-250 Level Transmitter: Indicates the T-250. This level is controlled with valve AO-323. level in AI-347 - Water to T-250 Flow Transmitter: Indicates the process water flow to T-250. This flow is controlled with AO-321. DI-367 - Water Flow Switch to SP-250: This switch is to indicate that there is a water flow going to SP-250. This flow ensures that SP-250 stays full and sealed. DI-355 - SP-250 Level Switch: Indicates the level in SP-250. This level is controlled with a manually restricted valve. AI-349 - T-250 Differential Pressure Transmitter: the amount of differential pressure across T-250. Indicates DO 1?76?9 CONFTDFNTTAL "rOLL=D COPY zCT iO UPDATE 2 AI-329 - T-250 Ch Probes: Indicates the amount of CI2 coming out of T-250 stack. AI-309 - T-250 CI2 Probes: Indicates the amount of CI2 coming out of T-250 stack. AI-319 - T-250 CI2 Probes: Indicates the amount of CI2 coming out of T-250 stack. AI-352 - T-250 pH Probes: Indicates the pH of the recycled cell effluent to determine how much more CI2 can be absorbed. AI-362 - T-250 pH Probe: Indicates the pH of the recycled cell effluent to determine how much more CI2 can be absorbed. AI-372 - T-250 pH Probe: Indicates the pH of the recycled cell effluent to determine how much more CI2 can be absorbed. AI-383 - T-250 Temperature Probe: temperature in T-250. Indicates the mid AI-384 - T-250 Temperature Probe: temperature in T-250. Indicates the bottom AI-382 - T-250 Temperature Probe: temperature in T-250. Indicates the top HAZARDS AND PROTECTION Cell Effluent: Cell effluent is one of the hazards in this area. Cell effluent is a light (10% caustic) that is used to scrub the CI2 vapors. When scrubbing the CI2 vapors, the cell effluent will heat up due to the reaction. Minimum requirements for cell effluent are mono goggles and rubber gloves. CI2 Gas: Cl2 gas is one of the hazards in this area. It is a green gas that is toxic and corrosive. It will cause respiratory problems and eye irritation. Minimum requirements for CI2 gas is monogoggles and mouth-bit respirator when approaching a leak upwind or for escape only. A full-face canister mask is required when catching a CI2 sample or working on or near a leak. 2 DO 127630 OONFTDFNTIA1. AI-329 - T-250 O2 Probes: Indicates the amount of CI2 coming out of T-250 stack. AI-309 - T-250 CI2 Probes: Indicates the amount of CI2 coming out of T-250 stack. AI-319 - T-250 CI2 Probes: Indicates the amount of CI2 coming out of T-250 stack. AI-352 - T-250 pH Probes: Indicates the pH of the recycled cell effluent to determine how much more CI2 can be absorbed. AI-362 - T-250 pH Probe: Indicates the pH of the recycled cell effluent to determine how much more CI2 can be absorbed. AI-372 - T-250 pH Probe: Indicates the pH of the recycled cell effluent to determine how much more CI2 can be absorbed. AI-383 - T-250 Temperature Probe: temperature in T-250. Indicates the mid AI-384 - T-250 Temperature Probe: temperature in T-250. Indicates the bottom AI-382 - T-250 Temperature Probe: temperature in T-250. Indicates the top HAZARDS AND PROTECTION Cell Effluent: Cell effluent is one of the hazards in this area. Cell effluent is a light (10% caustic) that is used to scrub the CI2 vapors. When scrubbing the CI2 vapors, the cell effluent will heat up due to the reaction. Minimum requirements for cell effluent are mono goggles and rubber gloves. CI2 Gas: Cl2 gas is one of the hazards in this area. It is a green gas that is toxic and corrosive. It will cause respiratory problems and eye irritation. Minimum requirements for CI2 gas is monogoggles and mouth-bit respirator when approaching a leak upwind or for escape only. A full-face canister mask is required when catching a CI2 sample or working on or near a leak. 2 DO 127631 CONFIDENTIAL AI-329 - T-250 CI2 Probes: Indicates the amount of CI2 coming out of T-250 stack. AI-309 - T-250 CI2 Probes: Indicates the amount of CI2 coming out of T-250 stack. AI-319 - T-250 CI2 Probes: Indicates the amount of CI2 coming out of T-250 stack. AI-352 - T-250 pH Probes: Indicates the pH of the recycled cell effluent to determine how much more CI2 can be absorbed. AI-362 - T-250 pH Probe: Indicates the pH of the recycled cell effluent to determine how much more CI2 can be absorbed. AI-372 - T-250 pH Probe: Indicates the pH of the recycled cell effluent to determine how much more CI2 can be absorbed. AI-383 - T-250 Temperature Probe: temperature in T-250. Indicates the mid AI-384 - T-250 Temperature Probe: temperature in T-250. Indicates the bottom AI-382 - T-250 Temperature Probe: temperature in T-250. Indicates the top HAZARDS AND PROTECTION Cell Effluent: Cell effluent is one of the hazards in this area. Cell effluent is a light (10% caustic) that is used to scrub the CI2 vapors. When scrubbing the CI2 vapors, the cell effluent will heat up due to the reaction. Minimum requirements for cell effluent are mono goggles and rubber gloves. CI2 Gas: CI2 gas is one of the hazards in this area. It is a green gas that is toxic and corrosive. It will cause respiratory problems and eye irritation. Minimum requirements for CI2 gas is monogoggles and mouth-bit respirator when approaching a leak upwind or for escape only. A full-face canister mask is required when catching a CI2 sample or working on or near a leak. 2 DO 12763? CONFIDENTIAL Rotating Equipment: As in any area, extra precaution should be given when working around rotating equipment. Loose shirt tails, long hair, and fingers should be kept away from rotating equipment. The P-250's and P-251's are auto start/stop pumps, and extra precaution should be taken. Noise: The Low Pressure Scrubber is located next to Power II and H2 Recovery. As in any part of the block, hearing protection should be worn. DO 127633 CONFIDENT TAl Rotating Equipment: As in any area, extra precaution should be given when working around rotating equipment. Loose shirt tails, long hair, and fingers should be kept away from rotating equipment. The P-250's and P-251's are auto start/stop pumps, and extra precaution should be taken. Noise: The Low Pressure Scrubber is located next to Power II and H2 Recovery. As in any part of the block, hearing protection should be worn. DO 127634 CONFIDENTIAL Rotating Equipment: As in any area, extra precaution should be given when working around rotating equipment. Loose shirt tails, long hair, and fingers should be kept away from rotating equipment. The P-250's and P-251's are auto start/stop pumps, and extra precaution should be taken. Noise: The Low Pressure Scrubber is located next to Power II and H2 Recovery. As in any part of the block, hearing protection should be worn. COM c ~' v_ -- i/*V- ' EC C Of DO 127635 COMF1 DENT T At 30 STARTUP SCRUBBER SYSTEM SECTION TANKS AND VESSELS T-2S0: A 6 ft. in diameter FRP packed tower with two 10 foot sections packed with 2" Intalox Kynar saddles. The column is 64 feet tall and is supported by a structure. The liquid contents of the tower bottom are continuously recirculated through the lower section of the packing. J-251: J-251 is an F. R. P. Venturi scrubber that is 16" in diameter with an all titanium nozzle and draft of 4" water at 2,000 cfm gas flow. VRD-251: A 2 feet in diameter by 4 feet high FRP vacuum breaker designed for a maximum vacuum of 8" water. VALVES AUTO pH Control Valve (AO-323): This valve will maintain a pH of 12 or 13, depending on if one or two circuits of cells are being energized. This valve also maintains level in T-250. Startup Header Pressure Control Valve (AO-325): When J-251 is in the "sweep" step, this valve is used to control the vacuum at -4" water. Process Water to VRD-251: This small manual valve is used to maintain a process water flow to VRD-251. Without this, a level would not be maintained, and vacuum would be lost on the startup header. Scrubber Block Valves on S-l through S-8: These 12" block valves are located at each series. These valves are opened up during startup operation or when we want to sweep the covers. STARTUP SCRUBBER SYSTEM SECTION TANKS AND VESSELS T-250: A 6 ft. in diameter FRP packed tower with two 10 foot sections packed with 2" Intalox Kynar saddles. The column is 64 feet tall and is supported by a structure. The liquid contents of the tower bottom are continuously recirculated through the lower section of the packing. J-251: J-251 is an F. R. P. Venturi scrubber that is 16" in diameter with an all titanium nozzle and draft of 4" water at 2,000 cfm gas flow. VRD-251: A 2 feet in diameter by 4 feet high FRP vacuum breaker designed for a maximum vacuum of 8" water. VALVES AUTO pH Control Valve (AO-323): This valve will maintain a pH of 12 or 13, depending on if one or two circuits of cells are being energized. This valve also maintains level in T-250. Startup Header Pressure Control Valve (AO-325): When J-251 is in the "sweep" step, this valve is used to control the vacuum at -4" water. Process Water to VRD-251: This small manual valve is used to maintain a process water flow to VRD-251. Without this, a level would not be maintained, and vacuum would be lost on the startup header. Scrubber Block Valves on S-l through S-8: These 12" block valves are located at each series. These valves are opened up during startup operation or when we want to sweep the covers. 00 127637 o onftdfnttai. STARTUP SCRUBBER SYSTEM SECTION TANKS AND VESSELS T-250: A 6 ft. in diameter FRP packed tower with two 10 foot sections packed with 2" Intalox Kynar saddles. The column is 64 feet tall and is supported by a structure. The liquid contents of the tower bottom are continuously recirculated through the lower section of the packing. J-251: J-251 is an F. R. P. Venturi scrubber that is 16" in diameter with an all titanium nozzle and draft of 4" water at 2,000 cfm gas flow. VRD-251: A 2 feet in diameter by 4 feet high FRP vacuum breaker designed for a maximum vacuum of 8" water. VALVES AUTO pH Control Valve (AO-323): This valve will maintain a pH of 12 or 13, depending on if one or two circuits of cells are being energized. This valve also maintains level in T-250. Startup Header Pressure Control Valve (AO-325): When J-251 is in the "sweep" step, this valve is used to control the vacuum at -4" water. Process Water to VRD-251: This small manual valve is used to maintain a process water flow to VRD-251. Without this, a level would not be maintained, and vacuum would be lost on the startup header. Scrubber Block Valves on S-l through S-8: These 12" block valves are located at each series. These valves are opened up during startup operation or when we want to sweep the covers. OO 127*>3 CONp MECHANICAL EQUIPMENT P-251 A/B: These pumps are used to supply cell effluent to J-251 and recirculate cell effluent back to T-250. P-251 A is a variable speed drive (VSD) pump and is used to maintain a small recirculation flow to keep column contents wet while the scrubber is not in use. INSTRUMENTATION Startup Header Pressure Transmitters: These header pressure transmitters are located in the piperack north of D-201 and are used for startup purposes only. Water Flow Switch to VRD-251: This switch is located at VRD-251. It alarms when water flow is lost and and couldn't be maintained. pH Transmitters on P-251'S Suction: These transmitters are located on the suctions of the P-251's. The probes let the Mod5 know when the cell effluent has scrubbed all of the CI2 it can. This is called spent cell effluent. If fresh cell effluent wasn't added when a low pH is reached, a spill would occur out of the top of T-250. Both CI2 Probes on T-250: These probes are located on the top of T-250. These probes let us know when CI2 is released out of the top of T-250. Total Cell Effluent Flow to T-250/J-251: This flow meter monitors flows during test functions/steps of the Mod5. This is one way to let us know if the variable speed drive pump (P-251 A) is working properly. This flow is located on the discharge of the P-251's. CONTROLLED COPY SU2v!ECT TO UPDATE DO 127639 CONFIDENTIAL 32 MECHANICAL EQUIPMENT P-2S1 A/B: These pumps are used to supply cell effluent to J-251 and recirculate cell effluent back to T-250. P-251 A is a variable speed drive (VSD) pump and is used to maintain a small recirculation flow to keep column contents wet while the scrubber is not in use. INSTRUMENTATION Startup Header Pressure Transmitters: These header pressure transmitters are located in the piperack north of D-201 and are used for startup purposes only. Water Flow Switch to VRD-251: This switch is located at VRD-251. It alarms when water flow is lost and and couldn't be maintained. pH Transmitters on P-251'S Suction: These transmitters are located on the suctions of the P-251's. The probes let the Mod5 know when the cell effluent has scrubbed all of the Ch it can. This is called spent cell effluent. If fresh cell effluent wasn't added when a low pH is reached, a spill would occur out of the top of T-250. Both CI2 Probes on T-250: These probes are located on the top of T-250. These probes let us know when CI2 is released out of the top of T-250. Total Cell Effluent Flow to T-250/J-251: This flow meter monitors flows during test functions/steps of the Mod5. This is one way to let us know if the variable speed drive pump (P-251 A) is working properly. This flow is located on the discharge of the P-251's. CONTROLLED COPY SUBJECT TQ UPDATE DO 127640 CONFIDENTIAL 32 MECHANICAL EQUIPMENT P-251 A/B: These pumps are used to supply cell effluent to J-251 and recirculate cell effluent back to T-250. P-251 A is a variable speed drive (VSD) pump and is used to maintain a small recirculation flow to keep column contents wet while the scrubber is not in use. INSTRUMENTATION Startup Header Pressure Transmitters: These header pressure transmitters are located in the piperack north of D-201 and are used for startup purposes only. Water Flow Switch to VRD-251: This switch is located at VRD-251. It alarms when water flow is lost and and couldn't be maintained. pH Transmitters on P-251'S Suction: These transmitters are located on the suctions of the P-251's. The probes let the Mod5 know when the cell effluent has scrubbed all of the CI2 it can. This is called spent cell effluent. If fresh cell effluent wasn't added when a low pH is reached, a spill would occur out of the top of T-250. Both CI2 Probes on T-250: These probes are located on the top of T-250. These probes let us know when CI2 is released out of the top of T-250. Total Cell Effluent Flow to T-250/J-251: This flow meter monitors flows during test functions/steps of the Mod5. This is one way to let us know if the variable speed drive pump (P-251 A) is working properly. This flow is located on the discharge of the P-251's. CONTPOLLED COPY SUBJECT TO UPDATE DO 12 7641. OONFTDENTTAL 32 HAZARDS AND PROTECTIVE MEASURES CHEMICALS Cell Effluent: This is the most widely used chemical in this area (besides CI2 when the scrubbers are in use). This is a corrosive substance. If contact is made with eyes or skin, flush immediately with water for 15 minutes. Minimum safety equipment when performing a line opening in cell effluent service is face shield, slicker suit, and rubber gloves. Chlorine Gas: CI2 is a toxic and corrosive chemical. If CI2 is inhaled, evacuate to a CI2 free atmosphere and report to Medical, if necessary. Always wear breathing air, slicker suit, and rubber gloves while performing a line opening in CI2 service. ROTATING EQUIPMENT P-251 A/B: Always be careful while working around rotating equipment. P-251's have coupling guards, but some of the shaft is still exposed. Keep loose fitting clothing, long hair, and dangling objects away from these dangerous areas. While working on shafts, seals, couplings, etc., always make sure the pump is properly tagged and racked out per CA II Block Procedure. NOISE: None SPILLS: If you see a CI2 spill while making a round, always report it to the control room. Never try to repair a CI2 leak with a mouth bit respirator. These are for escape purposes only. As with CI2 spills, always report them to the control room and stay away until the proper safety equipment can be worn if the leak needs to be blocked in. If a line opening is required to remove a pH probe to be acidized, wear proper safety equipment. Always wear minimum block safety equipment when handling acids and buffers that are needed to acidize these probes. Always follow S&LP standards when cross-tying any process. Be sure to use a double block and bleed setup with a check valve on DO 127642 CONFIDENTIAL HAZARDS AND PROTECTIVE MEASURES CHEMICALS Cell Effluent: This is the most widely used chemical in this area (besides CI2 when the scrubbers are in use). This is a corrosive substance. If contact is made with eyes or skin, flush immediately with water for 15 minutes. Minimum safety equipment when performing a line opening in cell effluent service is face shield, slicker suit, and rubber gloves. Chlorine Gas: CI2 is a toxic and corrosive chemical. If CI2 is inhaled, evacuate to a CI2 free atmosphere and report to Medical, if necessary. Always wear breathing air, slicker suit, and rubber gloves while performing a line opening in CI2 service. ROTATING EQUIPMENT P-251 A/B: Always be careful while working around rotating equipment. P-251's have coupling guards, but some of the shaft is still exposed. Keep loose fitting clothing, long hair, and dangling objects away from these dangerous areas. While working on shafts, seals, couplings, etc., always make sure the pump is properly tagged and racked out per CA II Block Procedure. NOISE: None SPILLS: If you see a CI2 spill while making a round, always report it to the control room. Never try to repair a CI2 leak with a mouth bit respirator. These are for escape purposes only. As with CI2 spills, always report them to the control room and stay away until the proper safety equipment can be worn if the leak needs to be blocked in. If a line opening is required to remove a pH probe to be acidized, wear proper safety equipment. Always wear minimum block safety equipment when handling acids and buffers that are needed to acidize these probes. Always follow S&LP standards when cross-tying any process. Be sure to use a double block and bleed setup with a check valve on 00 CONFTDFNTTA1 HAZARDS AND PROTECTIVE MEASURES CHEMICALS Cell Effluent: This is the most widely used chemical in this area (besides CI2 when the scrubbers are in use). This is a corrosive substance. If contact is made with eyes or skin, flush immediately with water for 15 minutes. Minimum safety equipment when performing a line opening in cell effluent service is face shield, slicker suit, and rubber gloves. Chlorine Gas: CI2 is a toxic and corrosive chemical. If CI2 is inhaled, evacuate to a CI2 free atmosphere and report to Medical, if necessary. Always wear breathing air, slicker suit, and rubber gloves while performing a line opening in CI2 service. ROTATING EQUIPMENT P-251 A/B: Always be careful while working around rotating equipment. P-251's have coupling guards, but some of the shaft is still exposed. Keep loose fitting clothing, long hair, and dangling objects away from these dangerous areas. While working on shafts, seals, couplings, etc., always make sure the pump is properly tagged and racked out per CA II Block Procedure. NOISE: None SPILLS: If you see a CI2 spill while making a round, always report it to the control room. Never try to repair a CI2 leak with a mouth bit respirator. These are for escape purposes only. As with CI2 spills, always report them to the control room and stay away until the proper safety equipment can be worn if the leak needs to be blocked in. If a line opening is required to remove a pH probe to be acidized, wear proper safety equipment. Always wear minimum block safety equipment when handling acids and buffers that are needed to acidize these probes. Always follow S&LP standards when cross-tying any process. Be sure to use a double block and bleed setup with a check valve on contkollec SUBJECT TO UPDAi- DO 127644 CONFIDENTIAL every cross-tie. (See your S&LP Standard for the proper way to set up a double block and bleed). Always take precautions when transferring hoses, valves and piping from one service to another. Make sure hoses are clean and dry before connecting them to another service. Always take extra precautions when connecting air or N2 hoses to CI2 service. A very little amount of water or moisture can do a lot of damage to a dry carbon steel CI2 line. Always throw away plastic tubing when you are finished using it (if it was used in hazardous service). Never use blue water hose, N2 hose, or green air hose to drain any type of chemical from a tank or line. Talk to your supervisor first and get a chemical hose for this job. Never substitute a utility hose for a chemical hose. ^. "CLLED COPY sUBJ CT TO UPDATE DO 127645 CONFIDENTIAL. 34 every cross-tie. (See your S&LP Standard for the proper way to set up a double block and bleed). Always take precautions when transferring hoses, valves and piping from one service to another. Make sure hoses are clean and dry before connecting them to another service. Always take extra precautions when connecting air or N2 hoses to CI2 service. A very little amount of water or moisture can do a lot of damage to a dry carbon steel CI2 line. Always throw away plastic tubing when you are finished using it (if it was used in hazardous service). Never use blue water hose, N2 hose, or green air hose to drain any type of chemical from a tank or line. Talk to your supervisor first and get a chemical hose for this job. Never substitute a utility hose for a chemical hose. "-'CLLED COPY CT TO UPDATE coV^lA 3 every cross-tie, (See your S&LP Standard for the proper way to set up a double block and bleed). Always take precautions when transferring hoses, valves and piping from one service to another. Make sure hoses are clean and dry before connecting them to another service. Always take extra precautions when connecting air or N2 hoses to CI2 service. A very little amount of water or moisture can do a lot of damage to a dry carbon steel CI2 line. Always throw away plastic tubing when you are finished using it (if it was used in hazardous service). Never use blue water hose, N2 hose, or green air hose to drain any type of chemical from a tank or line. Talk to your supervisor first and get a chemical hose for this job. Never substitute a utility hose for a chemical hose. D COFY SUBJECT 10 UPDATu CDOONFIDENT7AL HIGH PRESSURE SCRUBBER TANKS AND VESSELS J-252: A Venturi scrubber used to scrub high pressure CI2; example, startup of circuit through C-201, PSV's Liquefaction, Purification, sniff header, tail gas system, T-505 Overhead (0. H.), etc. The Venturi design is based on a 95% completion of the reaction between NaOH and CI2. It also has a nozzle that lets through 750 gpm of cell effluent at 40 psig cell effluent pressure. T-252: This is a packed tower filled with 255 cubic feet of #2 Intalox saddle packing used to ensure good contact between cell effluent and chlorine. J-252 discharges into this tower. VALVES Fresh Cell Effluent to T-252: This is used to control the level and the pH in T-252. This valve can be found on the Ecology Can in the control room labeled as AO-411. Fresh Cell Effluent to J-252: This is used to add fresh cell effluent to J-252. It is also used to control the flow through J-252. This control is from the Ecology Can in the Control Room and is labeled AO-412. T-252 Recycle Control Valve: Flow controls the recycle to T-252, keeping cell effluent on packing at all times. This valve is found on the Ecology Can in the Control Room and is labeled AO-413. -C.'.TRCLLED copy SUBJECT TO UPDATE DO 177648 CONFIDENTIAL HIGH PRESSURE SCRUBBER TANKS AND VESSELS J-252: A Venturi scrubber used to scrub high pressure CI2; example, startup of circuit through C-201, PSV's Liquefaction, Purification, sniff header, tail gas system, T-505 Overhead (O. H.), etc. The Venturi design is based on a 95% completion of the reaction between NaOH and CI2. It also has a nozzle that lets through 750 gpm of cell effluent at 40 psig cell effluent pressure. T-252: This is a packed tower filled with 255 cubic feet of #2 Intalox saddle packing used to ensure good contact between cell effluent and chlorine. J-252 discharges into this tower. VALVES Fresh Cell Effluent to T-252: This is used to control the level and the pH in T-252. This valve can be found on the Ecology Can in the control room labeled as AO-411. Fresh Cell Effluent to J-252: This is used to add fresh cell effluent to J-252. It is also used to control the flow through J-252. This control is from the Ecology Can in the Control Room and is labeled AO-412. T-252 Recycle Control Valve: Flow controls the recycle to T-252, keeping cell effluent on packing at all times. This valve is found on the Ecology Can in the Control Room and is labeled AO-413. j_ECLLED COPY SUBJECT TO UPDATE DO 1?7649 CONFIDFNTTAL HIGH PRESSURE SCRUBBER TANKS AND VESSELS J-252: A Venturi scrubber used to scrub high pressure CI2; example, startup of circuit through C-201, PSV's Liquefaction, Purification, sniff header, tail gas system, T-505 Overhead (O. H.), etc. The Venturi design is based on a 95% completion of the reaction between NaOH and Ch- It also has a nozzle that lets through 750 gpm of cell effluent at 40 psig cell effluent pressure. T-252: This is a packed tower filled with 255 cubic feet of #2 Intalox saddle packing used to ensure good contact between cell effluent and chlorine. J-252 discharges into this tower. valves Fresh Cell Effluent to T-252: This is used to control the level and the pH in T-252. This valve can be found on the Ecology Can in the control room labeled as AO-411. Fresh Cell Effluent to J-252: This is used to add fresh cell effluent to J-252. It is also used to control the flow through J-252. This control is from the Ecology Can in the Control Room and is labeled AO-412. T-252 Recycle Control Valve: Flow controls the recycle to T-252, keeping cell effluent on packing at all times. This valve is found on the Ecology Can in the Control Room and is labeled AO-413. ROLLED COPY SUBJECT TO UFDATE DO 177650 CONFIDENTIAL J-2S2 Recycle Flow Control Valve: This is a fail open valve. It controls the recycle flow to J-252. This valve can be controlled from the Control Room on the Ecology Can labeled AO-414. Process Water to T-252 Flow Control Valve: The process water flow is measured and controlled by this valve. This flow is set in a wash mode by the Mod5 computer. This can be controlled from the Mod5 Ecology Can. The valve is labeled AO-415. N 2 to D-252 Control Valve: Controls N2 pressure inside D-252 and pushes CI2 gas to J-252. The valve is labeled AO-420 on the Ecology Can on the Mod5 System. CI2 from C-201 A/B to D-252 and J-252 Control Valve: Controls the gas flow from C-201 A/B to J-252 located on the head tank deck east of T-210. The valve is labeled AO-410 on the C201 A/B Mod5 Can. P-252 A/B Suction, Discharge, Bleeds, and Seal: All manual block valves located at P-252 pump. The valve normally is open except when off-line pump is back spinning or valves are tagged. Cell Effluent to T-252 Bleed Valve Upstream: The valve is located between AO-411 and the upstream manual block valve. This is a manual block valve. Cell Effluent to T-252 Bleed Valve Downstream: The valve is located between AO-411 and the downstream manual block valve. This is a manual block valve. P-250 A/B Suction, Discharge, Bleeds, Common Suction Valve: All manual block valves located west of D-301 at P-250 pumps. All valves are normally open except when tagged. N2 Block Valve at D-252: This valve is located south of D-252 upstream of AO-420. This is a manual block valve. Block Valve on P-250 Pressure Control Loop to D-301 and D-316 A: This valve is located north of P-250 pumps above AO-322. The valve is normally closed. This is a manual block valve. COPY UPDATE DO CONF1 AL 36 J-252 Recycle Flow Control Valve: This is a fail open valve. It controls the recycle flow to J-252. This valve can be controlled from the Control Room on the Ecology Can labeled AO-414. Process Water to T-2S2 Flow Control Valve: The process water flow is measured and controlled by this valve. This flow is set in a wash mode by the Mod5 computer. This can be controlled from the Mod5 Ecology Can. The valve is labeled AO-415. N 2 to D-252 Control Valve: Controls N2 pressure inside D-252 and pushes CI2 gas to J-252. The valve is labeled AO-420 on the Ecology Can on the Mod5 System. CI2 from C-201 A/B to D-252 and J-252 Control Valve: Controls the gas flow from C-201 A/B to J-252 located on the head tank deck east of T-210. The valve is labeled AO-410 on the C201 A/B Mod5 Can. P-252 A/B Suction, Discharge, Bleeds, and Seal: All manual block valves located at P-252 pump. The valve normally is open except when off-line pump is back spinning or valves are tagged. Cell Effluent to T-252 Bleed Valve Upstream: The valve is located between AO-411 and the upstream manual block valve. This is a manual block valve. Cell Effluent to T-252 Bleed Valve Downstream: The valve is located between AO-411 and the downstream manual block valve. This is a manual block valve. P-250 A/B Suction, Discharge, Bleeds, Common Suction Valve: All manual block valves located west of D-301 at P-250 pumps. All valves are normally open except when tagged. N2 Block Valve at D-252: This valve is located south of D-252 upstream of AO-420. This is a manual block valve. Block Valve on P-250 Pressure Control Loop to D-301 and D-316 A: This valve is located north of P-250 pumps above AO-322. The valve is normally closed. This is a manual block valve. COfp^OLLED COPY TO UPDATE: CO 12765? CONFIDENTIAL 36 J-252 Recycle Flow Control Valve: This is a fail open valve. It controls the recycle flow to J-252. This valve can be controlled from the Control Room on the Ecology Can labeled AO-414. Process Water to T-252 Flow Control Valve: The process water flow is measured and controlled by this valve. This flow is set in a wash mode by the Mod5 computer. This can be controlled from the Mod5 Ecology Can. The valve is labeled AO-415. N 2 to D-252 Control Valve: Controls N2 pressure inside D-252 and pushes CI2 gas to J-252. The valve is labeled AO-420 on the Ecology Can on the Mod5 System. CI2 from C-201 A/B to D-252 and J-252 Control Valve: Controls the gas flow from C-201 A/B to J-252 located on the head tank deck east of T-210. The valve is labeled AO-410 on the C201 A/B Mod5 Can. P-252 A/B Suction, Discharge, Bleeds, and Seal: All manual block valves located at P-252 pump. The valve normally is open except when off-line pump is back spinning or valves are tagged. Cell Effluent to T-252 Bleed Valve Upstream: The valve is located between AO-411 and the upstream manual block valve. This is a manual block valve. Cell Effluent to T-252 Bleed Valve Downstream: The valve is located between AO-411 and the downstream manual block valve. This is a manual block valve. P-250 A/B Suction, Discharge, Bleeds, Common Suction Valve: All manual block valves located west of D-301 at P-250 pumps. All valves are normally open except when tagged. N2 Block Valve at D-252: This valve is located south of D-252 upstream of AO-420. This is a manual block valve. Block Valve on P-250 Pressure Control Loop to D-301 and D-316 A: This valve is located north of P-250 pumps above AO-322. The valve is normally closed. This is a manual block valve. CONTROLLED COPY -- TQLPDAtp DO 127653 CONFIDENTIAL 36 P-250 A/B Pressure Control Valve: This valve controls the pressure on the line going to the scrubbers. This valve goes open when P-250 pumps kick on. The valve is located north of the P-250's and is labeled AO-322 on the Mod5 computer. Auto Valve from P-305's: This stays in the open position at all times and is located south of the P-250's ground level. This valve is found on the Mod5 computer and is labeled DO-334. It is a fail open valve. MECHANICAL EQUIPMENT P-252 A/B: These pumps are used to re-circulate the cell effluent in T-252, keeping the packing wet. It also supplies cell effluent to J-252. These pumps are located on the east side of WP-800 and are auto start pumps. P-250 A/B: These pumps supply fresh cell effluent to all of Ecology. On the high pressure scrubber, these pumps add cell effluent to J-252 and to the top of T-252. These pumps are 2400 volt pumps with a capacity of 3,000 gpm. They are located on the west side of D-301 and are auto start pumps. P-305 A/B: These pumps maintain the header pressure on the cell effluent supply to the Ecology Area. They maintain the line pressure to prevent the P-250's from hammering the line out of the piperack. These pumps are located on the southeast side of D-301. It is important to know that these pumps supply the cell effluent feed to the Caustic Plant. - .'i\\ ROLLED COPY UPDATE DO 127654 CONFIDFNTXAI.. 3 P-250 A/B Pressure Control Valve: This valve controls the pressure on the line going to the scrubbers. This valve goes open when P-250 pumps kick on. The valve is located north of the P-250's and is labeled AO-322 on the Mod5 computer. Auto Valve from P-305's: This stays in the open position at all times and is located south of the P-250's ground level. This valve is found on the Mod5 computer and is labeled DO-334. It is a fail open valve. MECHANICAL EQUIPMENT P-252 A/B: These pumps are used to re-circulate the cell effluent in T-252, keeping the packing wet. It also supplies cell effluent to J-252. These pumps are located on the east side of WP-800 and are auto start pumps. P-250 A/B: These pumps supply fresh cell effluent to all of Ecology. On the high pressure scrubber, these pumps add cell effluent to J-252 and to the top of T-252. These pumps are 2400 volt pumps with a capacity of 3,000 gpm. They are located on the west side of D-301 and are auto start pumps. P-305 A/B: These pumps maintain the header pressure on the cell effluent supply to the Ecology Area. They maintain the line pressure to prevent the P-250's from hammering the line out of the piperack. These pumps are located on the southeast side of D-301. It is important to know that these pumps supply the cell effluent feed to the Caustic Plant. D COPY UPDATE DO 127655 CONFIDENTIAL 3 P-2S0 A/B Pressure Control Valve: This valve controls the pressure on the line going to the scrubbers. This valve goes open when P-250 pumps kick on. The valve is located north of the P-250's and is labeled AO-322 on the Mod5 computer. Auto Valve from P-305's: This stays in the open position at all times and is located south of the P-250's ground level. This valve is found on the Mod5 computer and is labeled DO-334. It is a fail open valve. MECHANICAL EQUIPMENT P-252 A/B: These pumps are used to re-circulate the cell effluent in T-252, keeping the packing wet. It also supplies cell effluent to J-252. These pumps are located on the east side of WP-800 and are auto start pumps. P-250 A/B: These pumps supply fresh cell effluent to all of Ecology. On the high pressure scrubber, these pumps add cell effluent to J-252 and to the top of T-252. These pumps are 2400 volt pumps with a capacity of 3,000 gpm. They are located on the west side of D-301 and are auto start pumps. P-305 A/B: These pumps maintain the header pressure on the cell effluent supply to the Ecology Area. They maintain the line pressure to prevent the P-250's from hammering the line out of the piperack. These pumps are located on the southeast side of D-301. It is important to know that these pumps supply the cell effluent feed to the Caustic Plant. l\'T -.cu, D COPY UPDATE DO 1?7656 CONFIDENTIAL 3 INSTRUMENTATION T-252 pH Probe at Suction of P-252 (AI-407): Indicates the pH of the recycled cell effluent to determine how much more CI2 can be absorbed. This pH is controlled with valve AO-411. T-252 pH Probe at Suction of P-252 (AI-417): Indicates the pH of the recycled cell effluent to determine how much more CI2 can be absorbed. This pH is controlled with valve AO-411. T-252 pH Probe at Suction of P-252 (AI-427): Indicates the pH of the recycled cell effluent to determine how much more CI2 can be absorbed. This pH is controlled with valve AO-411. P-252 Total Flow Transmitter to Top of T-252 and J-252: Indicates the total recycled cell effluent off the P-252's to T-252 and to J-252. This flow is controlled with valves AO-413 and AO-414. Temperature Probe on Bottom of T-252 (AI-442): Indicates the temperature on the bottom of T-252. This helps indicate the reaction of the cell effluent scrubbing the CI2. T-252 Level Transmitter (AI-460): Indicates the level in T-252. This level is controlled with valve AO-412. T-252 Level Transmitter (AI-470): Indicates the level in T-252. This level is controlled with valve AO-412. Pressure Transmitter at J-252 (AI-459): Indicates the pressure on the CI2 line coming from TXHO going to J-252. I>zs^ P-252 Discharge Flow Transmitter to Top of T-252 (AI-413): Indicates the flow of the P-252 discharge to the top of T-252. This flow is controlled with valve AO-413 and can also be affected by valve AO-414. Process Water Flow Transmitter to Top of T-252 (AI-415): Indicates the process water flow to the top of T-252. This flow is controlled with valve AO-415. T-252 Differential Pressure Transmitter (AI-457): the amount of differential pressure across T-252. Indicates rr - '-'XSO COPY ~0 UPDATE 00 12*657 CONFTDPNrrAI. 38 INSTRUMENTATION T-252 pH Probe at Suction of P-252 (AI-407): Indicates the pH of the recycled cell effluent to determine how much more Ch can be absorbed. This pH is controlled with valve AO-411. T-252 pH Probe at Suction of P-252 (AI-417): Indicates the pH of the recycled cell effluent to determine how much more CI2 can be absorbed. This pH is controlled with valve AO-411. T-252 pH Probe at Suction of P-252 (AI-427): Indicates the pH of the recycled cell effluent to determine how much more CI2 can be absorbed. This pH is controlled with valve AO-411. P-252 Total Flow Transmitter to Top of T-252 and J-252: Indicates the total recycled cell effluent off the P-252's to T-252 and to J-252. This flow is controlled with valves AO-413 and AO-414. Temperature Probe on Bottom of T-252 (AI-442): Indicates the temperature on the bottom of T-252. This helps indicate the reaction of the cell effluent scrubbing the CI2. T-252 Level Transmitter (AI-460): Indicates the level in T-252. This level is controlled with valve AO-412. T-252 Level Transmitter (AI-470): Indicates the level in T-252. This level is controlled with valve AO-412. Pressure Transmitter at J-252 (AI-459): Indicates the pressure on the CI2 line coming from going to J-252. D~ 'ZS'L- P-252 Discharge Flow Transmitter to Top of T-252 (AI-413): Indicates the flow of the P-252 discharge to the top of T-252. This flow is controlled with valve AO-413 and can also be affected by valve AO-414. Process Water Flow Transmitter to Top of T-252 (AI-415): Indicates the process water flow to the top of T-252. This flow is controlled with valve AO-415. T-252 Differential Pressure Transmitter (AI-457): the amount of differential pressure across T-252. P'XtQ COPY ' *0 UPDATE 00 Indicates 38 INSTRUMENTATION T-252 pH Probe at Suction of P-252 (AI-407): Indicates the pH of the recycled cell effluent to determine how much more Ch can be absorbed. This pH is controlled with valve AO-411. T-252 pH Probe at Suction of P-252 (AI-417): Indicates the pH of the recycled cell effluent to determine how much more CI2 can be absorbed. This pH is controlled with valve AO-411. T-252 pH Probe at Suction of P-252 (AI-427): Indicates the pH of the recycled cell effluent to determine how much more Ch can be absorbed. This pH is controlled with valve AO-411. P-252 Total Flow Transmitter toTop of T-252 and J-252: Indicates the total recycled cell effluent off the P-252's to T-252 and to J-252. This flow is controlled with valves AO-413 and AO-414. Temperature Probe on Bottom of T-252 (AI-442): Indicates the temperature on the bottom of T-252. This helps indicate the reaction of the cell effluent scrubbing the CI2. T-252 Level Transmitter (AI-460): Indicates the level in T-252. This level is controlled with valve AO-412. T-252 Level Transmitter (AI-470): Indicates the level in T-252. This level is controlled with valve AO-412. Pressure Transmitter at J-252 (AI-459): Indicates the pressure on the CI2 line coming from TU240 going to J-252. ]>ZSZ- P-252 Discharge Flow Transmitter to Top of T-252 (AI-413): Indicates the flow of the P-252 discharge to the top of T-252. This flow is controlled with valve AO-413 and can also be affected by valve AO-414. Process Water Flow Transmitter to Top of T-252 (AI-415): Indicates the process water flow to the top of T-252. This flow is controlled with valve AO-415. T-252 Differential Pressure Transmitter (AI-457): the amount of differential pressure across T-252. Indicates " copy "O UPDATE 3 D0 127659 CONFIDENTIAL T-252 Stack CI2 Probe (AI-458): being released out of T-252. Valve that is indicated on this probe. Indicates the amount of CI2 AO-411 is used to scrubthe CI2 T-252 Stack CI2 Probe (AI-468): Indicates the amount of CI2 being released out of T-252. Valve AO-411 is used to scrubthe CI2 that is indicated on this probe. T-252 Stack CI2 Probe (AI-478): Indicates the amount of CI2 being released out of T-252. Valve AO-411 is used to scrubthe CI2 that is indicated on this probe. Temperature Probe T-252 Stack (AI-441): Indicates the temperature at the top of T-252. This helps indicate the reaction of the cell effluent scrubbing the CI2. HAZARDS AND PROTECTIONS Cell Effluent: Cell effluent is one of the hazards in this area. Cell effluent is a light (10%) caustic that is used to scrub the CI2 vapors. When scrubbing the CI2 vapors, the cell effluent will heat up due to the reaction. Minimum requirements for cell effluent are monogoggles and rubber gloves. CI2 Gas: CI2 gas is one of the hazards in this area. It is a green gas that is toxic and corrosive. It will cause respiratory problems and eye irritation. Minimum requirements for CI2 gas is monogoggles and mouth bit respirator when approaching a leak upwind or for escape only. A full face canister mask is required when catching a CI2 sample or when working on or near a leak. Rotating Equipment: As in any area, extra precaution should be given when working around rotating equipment. Loose shirt tales, long hair, and fingers should be kept away from rotating equipment. The P-250's and P-252's are auto start/stop pumps, and extra precaution should be taken. Noise: The High Pressure Scrubber is located next to Power II and H2 Recovery. As in any part of the block, hearing protection should be worn. | CQ opy i-'-DATP DO 127660 CONFIDENTIAL 3 T-252 Stack Ch Probe (AI-4S8): Indicates the amount of CI2 being released out of T-252. Valve AO-411 is used to scrub the CI2 that is indicated on this probe. T-252 Stack CI2 Probe (AI-468): Indicates the amount of CI2 being released out of T-252. Valve AO-411 is used to scrub the CI2 that is indicated on this probe. T-252 Stack CI2 Probe (AI-478): Indicates the amount of CI2 being released out of T-252. Valve AO-411 is used to scrub the CI2 that is indicated on this probe. Temperature Probe T-252 Stack (AI-441): Indicates the temperature at the top of T-252. This helps indicate the reaction of the cell effluent scrubbing the CI2. HAZARPS.-ANP_PRQIEC.UQNS Cell Effluent: Cell effluent is one of the hazards in this area. Cell effluent is a light (10%) caustic that is used to scrub the CI2 vapors. When scrubbing the CI2 vapors, the cell effluent will heat up due to the reaction. Minimum requirements for cell effluent are monogoggles and rubber gloves. CI2 Gas: Cl2 gas is one of the hazards in this area. It is a green gas that is toxic and corrosive. It will cause respiratory problems and eye irritation. Minimum requirements for CI2 gas is monogoggles and mouth bit respirator when approaching a leak upwind or for escape only. A full face canister mask is required when catching a CI2 sample or when working on or near a leak. Rotating Equipment: As in any area, extra precaution should be given when working around rotating equipment. Loose shirt tales, long hair, and fingers should be kept away from rotating equipment. The P-250's and P-252's are auto start/stop pumps, and extra precaution should be taken. Noise: The High Pressure Scrubber is located next to Power II and H2 Recovery. As in any part of the block, hearing protection should be worn. ' LLI CP :o?v 39 DO 127661. confidential T-2S2 Stack CI2 Probe (AI-4S8): Indicates the amount of CI2 being released out of T-252. Valve AO-411 is used to scrub the CI2 that is indicated on this probe. T-252 Stack CI2 Probe (AI-468): Indicates the amount of CI2 being released out of T-252. Valve AO-411 is used to scrub the CI2 that is indicated on this probe. T-252 Stack CI2 Probe (AI-478): Indicates the amount of CI2 being released out of T-252. Valve AO-411 is used to scrub the CI2 that is indicated on this probe. Temperature Probe T-252 Stack (AI-441): Indicates the temperature at the top of T-252. This helps indicate the reaction of the cell effluent scrubbing the CI2. HAZARDS AND PROTECTIONS Cell Effluent: Cell effluent is one of the hazards in this area. Cell effluent is a light (10%) caustic that is used to scrub the CI2 vapors. When scrubbing the CI2 vapors, the cell effluent will heat up due to the reaction. Minimum requirements for cell effluent are monogoggles and rubber gloves. CI2 Gas: CI2 gas is one of the hazards in this area. It is a green gas that is toxic and corrosive. It will cause respiratory problems and eye irritation. Minimum requirements for CI2 gas is monogoggles and mouth bit respirator when approaching a leak upwind or for escape only. A full face canister mask is required when catching a CI2 sample or when working on or near a leak. Rotating Equipment: As in any area, extra precaution should be given when working around rotating equipment. Loose shirt tales, long hair, and fingers should be kept away from rotating equipment. The P-250's and P-252's are auto start/stop pumps, and extra precaution should be taken. Noise: The High Pressure Scrubber is located next to Power II and H2 Recovery. As in any part of the block, hearing protection should be worn. - 'lled copy - - ~ T-E ;'r ^'*7- DO 12766? CONFIDENTIAL FINAL OUTFALL SECTION VALVES Sump 12 Level Control Valve: This valve is physically located over Sump 12 which is north of the cell area. It controls the level in Sump 12 to prevent the trenches in the block from overflowing. This valve is labeled AO-306 and is located on the Mod5 Can 300 System "A". Outfall Trench Flow Control Valve: This valve controls the flow into the Outfall Trench according to the pH of the first trench pH probes. Under normal operating conditions, this valve is fully open. Sodium Thiosulfate from D-800: This valve controls the flow of sodium thiosulfate from D-800 storage tank into the mixer for the outfall trench flows. It is located in the east/west piperack north of Sump 12. Spent HC1 from Vinyl II: This valve is used as an additional HC1 source to MX-801 mixer to control the pH in the outfall trench. This is 34% HC1 from the Vinyl II Plant. It is located upstream of MX-801. Spent HC1 from Methanes: This valve controls the HC1 flow from the Methanes Plant. It is located upstream of MX-801 north of Sump 12. When this spent HC1 is available, it is the preferred choice for pH control. First Trench HC1 Addition: This valve is a backup pH controller or the primary pH controller when the spent HC1 from CMP or 34% HC1 from Vinyl II is not available. It can also serve as a flow controller and is located south of D-601. Second Trench HCI Addition: This is the smaller of the two valves at this point located north of HRU #2. It adds HCI to the trench to control the pH at a given setpoint. /- ""-2'.LED COPY z'_ ' "O UPDATE DO 1F7663 CONFIDENTIAL FINAL OUTFALL SECTION VALVES Sump 12 Level Control Valve: This valve is physically located over Sump 12 which is north of the cell area. It controls the level in Sump 12 to prevent the trenches in the block from overflowing. This valve is labeled AO-306 and is located on the Mod5 Can 300 System "A". Outfall Trench Flow Control Valve: This valve controls the flow into the Outfall Trench according to the pH of the first trench pH probes. Under normal operating conditions, this valve is fully open. Sodium Thiosulfate from D-800: This valve controls the flow of sodium thiosulfate from D-800 storage tank into the mixer for the outfall trench flows. It is located in the east/west piperack north of Sump 12. Spent HC1 from Vinyl II: This valve is used as an additional HC1 source to MX-801 mixer to control the pH in the outfall trench. This is 34% HC1 from the Vinyl II Plant. It is located upstream of MX-801. Spent HCI from Methanes: This valve controls the HC1 flow from the Methanes Plant. It is located upstream of MX-801 north of Sump 12. When this spent HCI is available, it is the preferred choice for pH control. First Trench HCI Addition: This valve is a backup pH controller or the primary pH controller when the spent HCI from CMP or 34% HCI from Vinyl II is not available. It can also serve as a flow controller and is located south of D-601. Second Trench HCI Addition: This is the smaller of the two valves at this point located north of HRU #2. It adds HCI to the trench to control the pH at a given setpoint. - COPY DO 127664 confidential FINAL OUTFALL SECTION .VALVES Sump 12 Level Control Valve: This valve is physically located over Sump 12 which is north of the cell area. It controls the level in Sump 12 to prevent the trenches in the block from overflowing. This valve is labeled AO-306 and is located on the Mod5 Can 300 System "A". Outfall Trench Flow Control Valve: This valve controls the flow into the Outfall Trench according to the pH of the first trench pH probes. Under normal operating conditions, this valve is fully open. Sodium Thiosulfate from D-800: This valve controls the flow of sodium thiosulfate from D-800 storage tank into the mixer for the outfall trench flows. It is located in the east/west piperack north of Sump 12. Spent HC1 from Vinyl II: This valve is used as an additional HC1 source to MX-801 mixer to control the pH in the outfall trench. This is 34% HC1 from the Vinyl II Plant. It is located upstream of MX-801. Spent HC1 from Methanes: This valve controls the HC1 flow from the Methanes Plant. It is located upstream of MX-801 north of Sump 12. When this spent HC1 is available, it is the preferred choice for pH control. First Trench HC1 Addition: This valve is a backup pH controller or the primary pH controller when the spent HC1 from CMP or 34% HC1 from Vinyl II is not available. It can also serve as a flow controller and is located south of D-601. Second Trench HC1 Addition: This is the smaller of the two valves at this point located north of HRU #2. It adds HC1 to the trench to control the pH at a given setpoint. ; - ''~?r.LL^D COPY -03. ^ ' 'C UPDATE DO 177665 CONFIDENTIAL Second HCI Addition: This is the larger of the two valves located north of HRU #2. When the smaller valve is fully open, this valve opens to control the pH in the outfall trench. It can also be used as a flow controller. MX-801: This is a mixing pot for the trench effluent where the sodium thiosulfate and HCI from Methanes are added for ORP and pH control. It is located in the east/west piperack south of T-206. INSTRUMENTATJON First Addition HCI Flow Transmitter: This transmitter is located under the steps that cross the lowboy piperack into the Hydrogen Recovery Area by T-206. It measures the HCI flow to the trench for pH control. Second Addition HCI Flow Transmitter: located in the east/west piperack north of GT-2. flow through the two valves that are used at point for pH control. This transmitter is It measures the HCI the second addition Spent H2SO4 Flow Transmitter: This transmitter is located west of T-201 on P-204 A/B discharge line. It measures the H2SO4 flow being dumped from T-201 into the outfall trench. It also helps in lining out T-201 level. Both Primary pH Probes: These probes are in the trench south of T-602. Their function is to measure the pH in the trench and send the signal to the HCI valve for pH control. Both Secondary pH Probes: These probes are located in the trench north of HRU #2. They measure the pH in the trench at that point and send the signal to the two HCI valves used for pH control there. Both Final Outfall pH Probes: These probes are located at the end of the outfall trench near Chlorine Road. They indicate the pH of the liquid leaving CA II. This is only an indication, and HCI is not added here. . :;;-T"CLLED COPY SUBJECT TO UPDATE DO 127666 CONFIDENT T Al 4 Second HC1 Addition: This is the larger of the two valves located north of HRU #2, When the smaller valve is fully open, this valve opens to control the pH in the outfall trench. It can also be used as a flow controller. MX-801: This is a mixing pot for the trench effluent where the sodium thiosulfate and HC1 from Methanes are added for ORP and pH control. It is located in the east/west piperack south of T-206. UVSIJUMEJyXAXtQjV First Addition HC1 Flow Transmitter: This transmitter is located under the steps that cross the lowboy piperack into the Hydrogen Recovery Area by T-206. It measures the HCI flow to the trench for pH control. Second Addition HCI Flow Transmitter: This transmitter is located in the east/west piperack north of GT-2. It measures the HCI flow through the two valves that are used at the second addition point for pH control. Spent H2SO4 Flow Transmitter: This transmitter is located west of T-201 on P-204 A/B discharge line. It measures the H2SO4 flow being dumped from T-201 into the outfall trench. It also helps in lining out T-201 level. Both Primary pH Probes: These probes are in the trench south of T-602. Their function is to measure the pH in the trench and send the signal to the HCI valve for pH control. Both Secondary pH Probes: These probes are located in the trench north of HRU #2. They measure the pH in the trench at that point and send the signal to the two HCI valves used for pH control there. Both Final Outfall pH Probes: These probes are located at the end of the outfall trench near Chlorine Road. They indicate the pH of the liquid leaving CA II. This is only an indication, and HCI is not added here. .'T-.CLLED COPY L'HDT TO UPDATE DO 177667 CONFTDFNTTAL 4 Second HC1 Addition: This is the larger of the two valves located north of HRU #2. When the smaller valve is fully open, this valve opens to control the pH in the outfall trench. It can also be used as a flow controller. MX-801: This is a mixing pot for the trench effluent where the sodium thiosulfate and HC1 from Methanes are added for ORP and pH control. It is located in the east/west piperack south of T-206. INSTRUMENTATION First Addition HC1 Flow Transmitter: This transmitter is located under the steps that cross the lowboy piperack into the Hydrogen Recovery Area by T-206. It measures the HC1 flow to the trench for pH control. Second Addition HC1 Flow Transmitter: This transmitter is located in the east/west piperack north of GT-2. It measures the HC1 flow through the two valves that are used at the second addition point for pH control. Spent H2SO4 Flow Transmitter: This transmitter is located west of T-201 on P-204 A/B discharge line. It measures the H2SO4 flow being dumped from T-201 into the outfall trench. It also helps in lining out T-201 level. Both Primary pH Probes: These probes are in the trench south of T-602. Their function is to measure the pH in the trench and send the signal to the HC1 valve for pH control. Both Secondary pH Probes: These probes are located in the trench north of HRU #2. They measure the pH in the trench at that point and send the signal to the two HC1 valves used for pH control there. Both Final Outfall pH Probes: These probes are located at the end of the outfall trench near Chlorine Road. They indicate the pH of the liquid leaving CA II. This is only an indication, and HC1 is not added here. . * -.CLLED COPY fcuSJECT TO UPDATE DO 127668 CONFIDENTIAL Outfall Orp: This probe is located near the flume at the final outfall. It measures the amount of Ch vapors being released from the trench. Outfall T. S. S. Probe Chlorine Canal pH Probe: This probe indicates the pH in the main canal going back to the river. It is located in the canal by the bridge going to AS&TC. HAZARDS AND PROTECTIVE MEASURES Chemical: There are two types of chemicals in this area that could present a hazard to employees working in the area. These chemicals are hydrochloric acid (HC1) and sulfuric acid (H2SO4). These acids are used for pH control and are added to the trench south of D-601 and north of HRU #2. They are very corrosive and toxic. Minimum requirements for handling thee acids are slicker suit, face shield, rubber boots, and rubber gloves. Falling and Tripping: This area is relatively free and clear of tripping hazards, although the possibility of falling exists when the operator is cleaning the skimmer at the final outfall. Noise: Ear protection is required in this area since the noise level has been has been recorded above 85 decibels at times, especially in the area north of HRU #2 and south of C-601. SPILLS Hydrochloric Acid (HC1) Spill: HC1 emits very strong and toxic fumes when it is spilled on the ground. It should be washed up with water immediately. In all cases the cause of the spill should be corrected as soon as possible. 1 no D CCPY SUSJECTTO UPDATE DO 127669 CONFIDENTIAL Outfall Orp: This probe is located near the flume at the final outfall. It measures the amount of CI2 vapors being released from the trench. Outfall T. S. S. Probe Chlorine Canal pH Probe: This probe indicates the pH in the main canal going back to the river. It is located in the canal by the bridge going to AS&TC. HAZARDS AND PROTECTIVE MEASURES Chemical: There are two types of chemicals in this area that could present a hazard to employees working in the area. These chemicals are hydrochloric acid (HCI) and sulfuric acid (H2SO4). These acids are used for pH control and are added to the trench south of D-601 and north of HRU #2. They are very corrosive and toxic. Minimum requirements for handling thee acids are slicker suit, face shield, rubber boots, and rubber gloves. Falling and Tripping: This area is relatively free and clear of tripping hazards, although the possibility of falling exists when the operator is cleaning the skimmer at the final outfall. Noise: Ear protection is required in this area since the noise level has been has been recorded above 85 decibels at times, especially in the area north of HRU #2 and south of C-601. SPILLS Hydrochloric Acid (HCI) Spill: HCI emits very strong and toxic fumes when it is spilled on the ground. It should be washed up with water immediately. In all cases the cause of the spill should be corrected as soon as possible. SU3JtCT TO UPDATE OO 127670 CONFIDENTIAL Outfall Orp: This probe is located near the flume at the final outfall. It measures the amount of CI2 vapors being released from the trench. Outfall T. S. S. Probe Chlorine Canal pH Probe: This probe indicates the pH in the main canal going back to the river. It is located in the canal by the bridge going to AS&TC. HAZARDS AND PROTECTIVE MEASURES Chemical: There are two types of chemicals in this area that could present a hazard to employees working in the area. These chemicals are hydrochloric acid (HC1) and sulfuric acid (H2SO4). These acids are used for pH control and are added to the trench south of D-601 and north of HRU #2. They are very corrosive and toxic. Minimum requirements for handling thee acids are slicker suit, face shield, rubber boots, and rubber gloves. Falling and Tripping: This area is relatively free and clear of tripping hazards, although the possibility of falling exists when the operator is cleaning the skimmer at the final outfall. Noise: Ear protection is required in this area since the noise level has been has been recorded above 85 decibels at times, especially in the area north of HRU #2 and south of C-601. S-EILLS Hydrochloric Acid (HCl) Spill: HC1 emits very strong and toxic fumes when it is spilled on the ground. It should be washed up with water immediately. In all cases the cause of the spill should be corrected as soon as possible. copy SU3JcC/ TO UPDATE DO 177671 CONFIDENTIAL Spent Sulfuric Acid Spill: Sulfuric acid also emits strong and toxic fumes when exposed to the atmosphere. In the event of a spill, it should be washed up with water immediately. The area should be barricaded until the leak (spill) is corrected. Excess Hypos: If the hypochlorite in the trench gets too high, toxic vapors will be released to the atmosphere. To control the hypo chlorites in the trench, we add sodium thiosulfate. It should be noted that sodium thiosulfate is very expensive and should be used very sparingly. Also, too much sodium thiosulfate will cause the trench to be a milky color. Total Suspended Solids (T. S. S.): Solids will be released into the trench if we are having high pH problems in D-810. A pH of 2 is desired to keep the solids level to a minimum. Cell Effluent: Cell effluent is a very corrosive and, in case of a spill, it should be washed with water and the area barricaded until the spill/leak is repaired. Oil: In case of an oil spill, efforts should be made to keep it out of the trenches. Oil sorb and/or diapers should be used to contain the spill. The used oil sorb and diapers should be placed in fiber pacs, labeled, and placed in the hazard waste area for disposal. Sulfuric Acid Line Opening: When opening sulfuric acid line/equipment, a full acid suit, rubber boots, rubber gloves, hood and a respirator, and monogoggles should be used. Hydrochloric Acid Line Opening (HC1): When opening HC1 lines/equipment, a slicer suit, face shield, monogoggles, rubber boots, and rubber gloves should be used. Bleeding Down Sulfuric Acid and Hydrochloric Acid Lines: To bleed down sulfuric and hydrochloric acid lines, a full acid suit is required, along with rubber boots, rubber gloves, monogoggles, and a hood. The primary hazard that exists when acidizing trench pH probes is the possibility of CI2 being released due to high hypochlorites. In this case, a respirator should be used, along with rubber gloves and a face shield. DO 12767? CONFIDENTIAL 4 Spent Sulfuric Acid Spill: Sulfuric acid also emits strong and toxic fumes when exposed to the atmosphere. In the event of a spill, it should be washed up with water immediately. The area should be barricaded until the leak (spill) is corrected. Excess Hypos: If thehypochlorite in the trench gets too high, toxic vapors will be released to the atmosphere. To control the hypo chlorites in the trench, we add sodium thiosulfate. It should be noted that sodium thiosulfate is very expensive and should be used very sparingly. Also, too much sodium thiosulfate will cause the trench to be a milky color. Total Suspended Solids (T. S. S.): Solids will be released into the trench if we are having high pH problems in D-810. A pH of 2 is desired to keep the solids level to a minimum. Cell Effluent: Cell effluent is a very corrosive and, in case of a spill, it should be washed with water and the area barricaded until the spill/leak is repaired. Oil: In case of an oil spill, efforts should be made to keep it out of the trenches. Oil sorb and/or diapers should be used to contain the spill. The used oil sorb and diapers should be placed in fiber pacs, labeled, and placed in the hazard waste area for disposal. Sulfuric Acid Line Opening: When opening sulfuric acid line/equipment, a full acid suit, rubber boots, rubber gloves, hood and a respirator, and monogoggles should be used. Hydrochloric Acid Line Opening (HC1): When opening HC1 lines/equipment, a slicer suit, face shield, monogoggles, rubber boots, and rubber gloves should be used. Bleeding Down Sulfuric Acid and Hydrochloric Acid Lines: To bleed down sulfuric and hydrochloric acid lines, a full acid suit is required, along with rubber boots, rubber gloves, monogoggles, and a hood. The primary hazard that exists when acidizing trench pH probes is the possibility of CI2 being released due to high hypochlorites. In this case, a respirator should be used, along with rubber gloves and a face shield. / 3 UPDATS 00 127673 CQNFTDETNTTAI. 4 Spent Sulfuric Acid Spill: Sulfuric acid also emits strong and toxic fumes when exposed to the atmosphere. In the event of a spill, it should be washed up with waterimmediately. The area should be barricaded until the leak (spill) is corrected. Excess Hypos: If the hypochlorite in the trench gets too high, toxic vapors will be released to the atmosphere. To control the hypo chlorites in the trench, we add sodium thiosulfate. It should be noted that sodium thiosulfate is very expensive and should be used very sparingly. Also, too much sodium thiosulfate will cause the trench to be a milky color. Total Suspended Solids (T. S. S-): Solids will be released into the trench if we are having high pH problems in D-810. A pH of 2 is desired to keep the solids level to a minimum. Cell Effluent: Cell effluent is a very corrosive and, in case of a spill, it should be washed with water and the area barricaded until the spill/leak is repaired. Oil: In case of an oil spill, efforts should be made to keep it out of the trenches. Oil sorb and/or diapers should be used to contain the spill. The used oil sorb and diapers should be placed in fiber pacs, labeled, and placed in the hazard waste area for disposal. Sulfuric Acid Line Opening: When opening sulfuric acid line/equipment, a full acid suit, rubber boots, rubber gloves, hood and a respirator, and monogoggles should be used. Hydrochloric Acid Line Opening (HC1): When opening HC1 lines/equipment, a sheer suit, face shield, monogoggles, rubber boots, and rubber gloves should be used. Bleeding Down Sulfuric Acid and Hydrochloric Acid Lines: To bleed down sulfuric and hydrochloric acid lines, a full acid suit is required, along with rubber boots, rubber gloves, monogoggles, and a hood. The primary hazard that exists when acidizing trench pH probes is the possibility of CI2 being released due to high hypochlorites. In this case, a respirator should be used, along with rubber gloves and a face shield. - - `-'C.CY 3 UPDATE 127674 confidential Cross-tying flows should be avoided as much as possible. In the event a cross-tie is used, the materials being used must be carefully considered. On all cross-ties, a double block and bleed with a check valve must be used. This is done to help prevent contamination of the two process flows. When moving hoses, valves, piping, etc., from one service to another, it should be known what type of service it came from and what type of service it is going to be used in to avoid the possibility of a chemical reaction. OPERATING DISCIPLINE Outfall Composite Sample: The Outfall composite sample is the most important sample in the block. This is a required E. P. A sample that is to be caught at midnight each night. When the sample is caught, it is poured into two bottles; one for CA II and one for Environmental. It is important to know that this composite is a refrigerated composite. When catching the composite, the compositor should be shook up, poured into a jar with no vapor space, capped, tagged with the Environmental sample tag filled out, and placed back into the refrigerator. The plastic bottle for Ca II should be filled and capped. The remainder of the sample in the compositor should be dumped out and the compositor washed out. The compositor should then be placed back into the refrigerator. The sample should be taken into the lab, recorded on the log sheet, and analyzed for pH and hypochlorites. pH should run from approximately 1.0 to 4.0 pH, and there should be no hypochlorites. There should never be a settled volume of solids in the sample. We are limited to <100 pounds of Total Suspended Solids (T. S. S.) per day. We are also monitored by the E. P. A for salt, chlorates, and metals. We also check for excess sodium thiosulfate. It is important to understand that this flow returns to the Mississippi River and is monitored by the E. P. A. Violation of the E. P. A permits could result in fines and possibly jail terms for knowingly exceeding E. P. A's permit limits. Always report problems with outfall immediately to supervisor. Another important note is to never use metal fittings on the compositor at outfall. A metal tubing fitting on the compositor is enough to give us a non-compliance. Always make sure the outfall is clear and free of oil or any debris. Remember, a non-compliance is not only a fine from the E. P. A. It is bad publicity for Dow. $U2j-tL-D COpy TTOO uUPpDdAatTeS DO 127675 CONFIDENTIAL Cross-tying flows should be avoided as much as possible. In the event a cross-tie is used, the materials being used must be carefully considered. On all cross-ties, a double block and bleed with a check valve must be used. This is done to help prevent contamination of the two process flows. When moving hoses, valves, piping, etc., from one service to another, it should be known what type of service it came from and what type of service it is going to be used in to avoid the possibility of a chemical reaction. OFERAXIffG . DISCIPLINE Outfall Composite Sample: The Outfall composite sample is the most important sample in the block. This is a required E. P. A sample that is to be caught at midnight each night. When the sample is caught, it is poured into two bottles; one for CA II and one for Environmental. It is important to know that this composite is a refrigerated composite. When catching the composite, the compositor should be shook up, poured into a jar with no vapor space, capped, tagged with the Environmental sample tag filled out, and placed back into the refrigerator. The plastic bottle for Ca II should be filled and capped. The remainder of the sample in the compositor should be dumped out and the compositor washed out. The compositor should then be placed back into the refrigerator. The sample should be taken into the lab, recorded on the log sheet, and analyzed for pH and hypochlorites. pH should run from approximately 1.0 to 4.0 pH, and there should be no hypochlorites. There should never be a settled volume of solids in the sample. We are limited to <100 pounds of Total Suspended Solids (T. S. S.) per day. We are also monitored by the E. P. A for salt, chlorates, and metals. We also check for excess sodium thiosulfate. It is important to understand that this flow returns to the Mississippi River and is monitored by the E. P. A. Violation of the E. P. A permits could result in fines and possibly jail terms for knowingly exceeding E. P. A's permit limits. Always report problems with outfall immediately to supervisor. Another important note is to never use metal fittings on the compositor at outfall. A metal tubing fitting on the compositor is enough to give us a non-compliance. Always make sure the outfall is clear and free of oil or any debris. Remember, a non-compliance is not only a fine from the E. P. A. It is bad publicity for Dow. Copy ^ =ct to Update DO 1P7676 CONFTDFNTTAL 44 '.P.H. Sample: T. P. H., which stands for Total Purgable lalocarbons, is a required E. P. A. sample. This sample measures all hlorinated organics that pass through our outfall. The E. P. A. ermit allows us a 3# daily discharge with a 6# maximum discharge, ome of the chlorinated organics that may show up outfall include hloroform, carbon tet, and methocel from spent acid from Methanes, he sample, which is caught every Tuesday, is a composite of four rab samples. The samples are caught at 6:00 a.m., 12 noon, 6:00 .m., and the last one at 12 midnight. These grab samples are to be aught in special grab sample bottles provided by Environmental, lied with no vapor space, capped, and tagged with the nvironmental sample tag provided which indicates date, time aught and noting that it is a grab sample. The sample should then e placed in the refrigerator. At midnight, all four grab samples tould be mixed in a clean jar then poured into two special sample .rs provided by Environmental, filled with no vapor space, capped, :gged with the Environmental sample tagwhich indicates outfall amber, date, time of samples, for what it is to be analyzed, name, id noting that it is a composite. Also attach all tags from the grab imples and send back the grab sample bottles. Knowingly violating e E. P. A.'s permits could be punishable by fines and possibly jail rms. Remember, a non-compliance is not only a fine from the . P. A.,it is bad publicity for Dow. esidual CI2 Sample: The residual CI2 sample is an E. P. A quired sample that is caught every day by the people from ivironmental Services. The E. P. A. permit allows us no more than 7 A# daily and no more than 28.6# per month. Residual CI2 in the itfall is caused by hypochlorites being released into streams going rough our permitted outfall. An Orp probe (AI-324) has been lded to our outfall to detect when we are getting hypos in the itfall. Sodium thiosulfate from D-800 is normally added at all times help eliminate the residual CI2 problem. If we happen to exceed ir daily maximum, extra samples will be required to get the erage down below our daily maximum limit. The number of extra mples to be caught will be determined by how far we are out of ec and the number of samples to get it back into spec. When the mber of extra samples has been determined, they will be caught in ual time spans for the remainder of the day. Example: If 24 extra mples are needed and there are 12 hours left in the day, one mple will have to be caught every 1/2 hour, and brought to ivironmental to be analyzed. If any of the extra samples show 5iduals, additional samples will be required again based on the DO 177677 CONFIDFNTTAL C2:. POLLED COPY SUBJECT TO UPDATE 45 amount of residuals shown. Knowingly violating the E. P. A. permits could be punishable by fines and possible jail terms. Remember, a non-compliance is not only a fine from the E. P. A., it is bad publicity for Dow. T. S. S. Sample: T. S. S., which stands for Total Suspended Solids, is a required E. P. A. sample. This sample measures all solids that pass through our permitted outfall. The E. P. A. permit allows us a maximum of 2,420 pounds daily. Sand, clarifier bottoms from S-101 are some of the examples of what total suspended solids are. This sample is run by the Environmental people from our daily composite sample. A good indication of a potential T. S. S. problem is a cloudy outfall. As with any environmental problem, immediate attention should be given to the problem and the supervisor and the boardman notified. Knowingly violating the E. P. A.'s permit could be punishable by fines and possible jail terms. Remember, a noncompliance is not only a fine from the E. P. A., it is bad publicity for Dow. 12/9/91 DLL s^-3jcr TO update OO 127678 CONFTDFNTTAl 46 amount of residuals shown. Knowingly violating the E. P. A. permits could be punishable by fines and possible jail terms. Remember, a non-compliance is not only a fine from the E. P. A., it is bad publicity for Dow. T. S. S. Sample: T. S. S., which stands for Total Suspended Solids, is a required E. P. A. sample. This sample measures all solids that pass through our permitted outfall. The E. P. A. permit allows us a maximum of 2,420 pounds daily. Sand, clarifier bottoms from S-101 are some of the examples of what total suspended solids are. This sample is run by the Environmental people from our daily composite sample. A good indication of a potential T. S. S. problem is a cloudy outfall. As with any environmental problem, immediate attention should be given to the problem and the supervisor and the boardman notified. Knowingly violating the E. P. A.'s permit could be punishable by fines and possible jail terms. Remember, a noncompliance is not only a fine from the E. P. A., it is bad publicity for Dow. 12/9/91 DLL ' V Ufi DO 127679 CONFIDENTIAL 46 amount of residuals shown. Knowingly violating the E. P. A. permits could be punishable by fines and possible jail terms. Remember, a non-compliance is not only a fine from the E. P. A., it is bad publicity for Dow. T. S. S. Sample: T. S. S., which stands for Total Suspended Solids, is a required E. P. A. sample. This sample measures all solids that pass through our permitted outfall. The E. P. A. permit allows us a maximum of 2,420 pounds daily. Sand, clarifier bottoms from S-101 are some of the examples of what total suspended solids are. This sample is run by the Environmental people from our daily composite sample. A good indication of a potential T. S. S. problem is a cloudy outfall. As with any environmental problem, immediate attention should be given to the problem and the supervisor and the boardman notified. Knowingly violating the E. P. A.'s permit could be punishable by fines and possible jail terms. Remember, a noncompliance is not only a fine from the E. P. A., it is bad publicity for Dow. 12/9/91 DLL bOd.JEC f TO UPDATE D0 127680 CONFIOENTTAL 46