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VCM Plant April 13, 1978 (conoco) Conoco Chemicals Continental Oil Company P.O. Box 605 Westlake. Louisiana 70669 (318) 882 0550 Ms. Adlene Harrison Regional Administrator U. S. Environmental F'rot ection Agency Permit and Support Branc h 1201 Elm Street First International Suil ding Dallas, TX 75270 Dear Ms. Harrison: REQUEST FOR NPDES PEftMIT REVISIONS - PERMIT NO. LA 0003476 The CONOCO VCM Plant lo cated in Westlake, Louisiana, is requesting revisions to the existing NPDES Pe rmit. Permit revisions requested are as follows: A. Delete Chromium 4 Reporting Requirement From NPDES Permit The VCM Plant is jcur rently required by its NPDES Permit to monitor the cooling tower bldwdown stream for chromium. This condition was imposed at the time the faci lity was using a chromium-type corrosion control treatment. The ^CM Plant has since replaced this chromium treatment with a nonheavy metal treatment. The new cooling tower treatment chemicals consisi of the following: SCORHIB 1241 - Aicombination corrosion inhibitor and dispersant. This compound contains organic nitrogen containing compounds, organic synthetic polymers, polymerized phosphates, organic phosphorous containing compounds, and other active ingre dients. It does not contain any chromate or'any other h^avy metals. TECHNI-SPERSE- A i1 s cale inhibitor, antiprecipitant, and dispersant. This A-4 ctUpo>und is a polymeric blend of organic nitrogen contain- 4g cimpounds and other organic dispersants. It does not cdntatin phosphate or heavy metals. ALPHA 520 MICROBIOCIDE A | twi n-chain quaternary ammonium compound concentrate for the c ontrol of algae and bacterial slimes. The cooling tower blowdown is combined with process wastewater and trfeat ed in the secondary wastewater treatment system. The Alpha 520 microbiocide is biodegradable at the concentra- tlons present in the wastewater. VVC 00012717 ....1.... Ms. Adlene Harrison Page 2 April 13, 1978 The VCM Plant is req uesting the current requirement for monitoring chromium on the cooling tower blowdown be deleted from the NPDES Permit. No chromium compounds are used i t the process. It is emphasized that the cooling tower blowdown is discharged to the secondary waste treatment system for treatment. B. Add Discharge From New Acfd Neutralization Facility The VCM Plant is in the process of installing a vent incineration system as part o f an overall program to comply with the U. S. Environmental Protection Agency's standard for vinyl chloride emissions (Federal Registe Volume 41, No. 205 - October 21, 1976). Construction of the inci lerction system v/as begun in September, 1977, with completion proje :te<j for October, 1978. A hydrogen chlori de absorption column followed by a caustic scrubber will control hyd ogen chloride and chlorine emissions from the incineration vent. A hydrochloric acid waste stream will be produced. A muriatic acid fat ility will be constructed on plant property to produce an acid product or sales. This facility is expected to be placed into operation in July, 1979. CONOCO plans to nst all an acid neutralization facility to handle the acid waste streaiji i r the event of a malfunction of the muriatic acid handling facilit. t ori if we are unable to move the acid due to a decline in sales (Figure 1). When in operation, the neutralization facility will result in irjicrejased wastewater discharges to Bayou Verdine. Since the incineration|system will be started up no later than October, 1978, and the muriatic'aci d handling facility will not be completed until mid-1979, it wil be necessary for continuous operation of the acid neutralization facility during that time period. When neutralizinc HC1, the acid stream produced in the vent incineration system will be pumped to one of two clam shell pits for neutralization. One of thi clam shell pits will be held on standby and placed in service when the other pit requires recharging or maintenance. Vent gases from the c am shell pits will be diverted to a scrubber for re moval of hydrogen chloride. The scrubber water will flow to the clam shell pits for n dutralization. The design discharge rates are based on neutralizing 4800 lbs./hr. of HC1 (dry weight basis) as a 12 weight percent HC1 solul. ion. The wastewater s Ireati from the incineration acid neutralization pits will normally be discharged through a caustic trim neutralization pit and then to a sep arate monitoring box rather than discharged directly to the secondary waste treatment system monitoring box (Figure 1). These two streams will be combined in a coircnon sewer line that de charges to the re ceiving waters. Separate monitoring boxes are required due to the chlori de levels present in the acid neutralization stream interfering with phypiochemical analyses required for NPDES Permit coni piiance monitori ng of the waste treatment system. The acid neutralization stream will not be contaminated with any organics from the process. VVC 000012718 Ms. Adlene Harrison Page 3 April 13, 1978 Therefore, with nsi gnificant organic matter present in this stream, treatment in the sec ondary waste treatment system is of no value. It is anticipate^ th at occasionally additional water may have to be added to the cir(tula tion loop in the bottom of the HC1 absorber for proper temperatui)'e c ontrol. This will result in a temporary increase of acidic water be in g discharged to the clam shell pits. When this occurs, and a 1 ow pH is detected, the discharge from the caustic trim neutralization pit v, ill be diverted automatically and combined with the VCM plant process wa stewater feed to the secondary treatment system, The combined wassewa ter stream will flow through an existing caustic trim neutralizat on pit prior to discharge to the secondary treatment system. If a low pH is not detected when the additional cooling water is temporarily d' sch arged, then the flow will not be diverted to the secondary treatment system. Total Suspended Soli ds (TSS) Revisions We are requesting TS S concentrations of 60 mg/1 daily average and 135 mg/1 daily maximum for the new acid neutralization pits' discharges, These are the pe ims sible levels required in the publication "EPA Development for Itajo r Organic Pollutants," April, 1974. TSS analyses conducted on an oxis ting inplant acid neutralization pit indicated levels of 75 mg/` da ily average and 181 mg/1 daily maximum as typical for that type of sys tern. However, since the calculated flow through the new acid neutral 'zat ion pits will be less than one-half the flow through the existing acid n dutralization pit, fewer solids should be washed out of the new pits. Th is is the basis for assuming the EPA guidelines may be achievable. t s emphasized that we have no data available for a neutralization svste m with similar flows for comparative purposes and we can currently on ly assume, on the basis of the limited data available, that the EPA's permissible levels can be achieved. Once the system is operational, and we find these TSS levels are not attainable, then we will approach the Lc uisiana Stream Control Commission and EPA with a request for relaxati on of the permit TSS limits. We are request! nj re visions to our NPDES Permit for increasing the permissible TSS dis char ge limitations as follows: Daily Average Lbs./Day Daily Maximum Lbs./Day Current Permitted TS> Di scharge Levels 558 1,256 New Acid Neutral izatfi on Pit Dis charge TSS Levels Prc jected) ___ 55(a) 123(b) Requested TSS Discharge Levels 613 1,379 (a) 60 ppm at 76 gpm (b) 135 ppm at 76 gpm VVC 00001^719 Ms. Adlene Harrison Page 4 April 13, 1978 C. Requested Revisions to NPDES Permit Limitations and Monitoring Requirements Proposed sample (poirtits and permit parameters are as follows: 1) Acid Neutral iza :ion Pit Weir Box (VCM ID Discharge No. 1, Figure 1) a) Continuous low Measurement/Recording 2) Waste Treatrrient System Weir Box (VCM ID Discharge No. 2, Figure 1) a) BODs b) COD c) Ammonia as N) d) Chlorina ted Hydrocarbons (as Ethylene Dichloride) e) Continuo us low Measurement/Recording NOTE: pH/te mperature monitoring instruments relocated to VCM ID Disch argo No. 3. 3) Combined Was te Streams Monitoring Box (VCM ID Discharge No. 3) New EPA 001 Out all a) Continuous pH Measurement/Recording b) Continuous emperature Measurement/Recording c) Total Suspeiided Solids (TSS) These monitoring po nt locations are required due to the chloride concentrations that wi 1 be present in the acid neutralization pit dis- charge. The chlori ies will interfere with physiochemical analyses required for complian e monitoring on the, waste treatment system. Monitoring of the combined strd2ams has been incorporated where possible. A single discharge j)o int, EPA Outfall No. 001, is being requested for compliance reporti The combined waste streams (secondary waste treat- ment and acid neutri lization pit discharges) are discharged at this point. The permiss ble TSS discharge levels will be obtained by using the combined flows 6f these two streams and calculating the TSS loading on the basis of la s ngle sample of the combined streams. Other para- meters required for compliance monitoring of the waste treatment system will be measured at the waste treatment system weir box; loadings will be calculated using the flow from the waste treatment system. Continuous pH and temperature ijieasurements will be made on the two combined waste streams prior to di charge to the West Drainage Ditch. A summary of the re guested effluent limitations and monitoring require- ments is presented n Table 1. The changes requested consist of deletion of the chromium-reporting requirement, increasing the TSS dis- VVC 0000X2720 Ms. Adlene Harrison Page 5 April 13, 1978 charge limitations, nd the establishment of new monitoring locations. Should additional information be required, please contact Gary Foshee, Chief Process Engineer at 5318) 491r-5062. VVC 000012721 22LZ10000 TABLE 1 REQUESTED EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - EPA OUTFALL NO. 001 EFFLUENT CHARACTERISTIC Flow (MGD) BOD OOD TSS Armenia (as nitrogen) 4 Chlorinated Hydrocarbons (as Ethylene Dichloride) ^ DISCHARGE LIMITATIONS, LBS/DAY Daily Average Daily Maximum - 600 4,177 613 (a) (558)(b) 30 - 1,350 9,398 1,379 (a) (1256)(b) 68 1,500 3,375 MONITORING REQUIREMENTS Measurement Sample Frequency Type o > Continuously N/A 1/Week 24-hr composite 2/Week 24-hr composite 1/Week 24-hr composite 1/Week 24-hr composite 1/Week 24-hr composite | i j j i j j | The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored continuously at point 001. (a) Proposed revisions. (b) Current permitted levels. NOTE: EPA 001 - the point where the effluent leaves the ''combined waste streams monitoring box" and enters an unnamed ditch to Bayou Verdine. FIGURE 1 VVC 0 0 0 0 1 2 7 2 3 FIGURE 2 WASTEWATER DISCHARGES TO BAYOU VERDINE VVC 000012724- FORM APPROVED OMB No. 158-R010Q FOR AGENCY USE NATIONAL pollutant discharge elimination system applicaticJn for permit to discharge wastewater STANDARD FORM C - MANUFACTURING AND COMMERCIAL SECT ON . APPLICANT AND FACILITY DESCRIPTION Unless otherwise specified on this form all Itoms are to be completed. If an item is not applicable indicate `NA.' ADDITIONAL INSTRUCTIONS FOR SELE CTEC' ITEMS APPEAR IN SEPARATE INSTRUCTION BOOKLET AS INDICATED, REFER TO BOOKLET BEFORE FILLING OUT THESE ITErJlS. P/ease Print or Type. Legal Name of Applicant (see instructions) 101 Continental Oil Company 2. Mailing Address of Applicant (see Instructions) Number & Street City State Zip Code 102a 102b High Ridge Park Stamford 1 pie Connecticut 102d 06904 2. Applicant's Authorized Agent (see Instructions) Name and Title lOSi J.A. DeBernardi Mgr. VCM Plant Number & Street Address City State Zip Code Telephone Previous Application If a previous application for a National or Federal discharge per mit has been made, give the date of application. Use numeric designation for dale. 103b V03c 103d 103b 103f Box 605 Westlake Louisiana 70669 318 Area Code 491-5062 74 7 3 104 YR MO DAY t certify that I am familiar with the Information contained in this application and that to the best of my knowledge and belief such information Is true, complete, and accurate. J. A. DeBernardi Plant Manager Title 78 4 14 YR MO DAY Date Application Signed 18 U.S.C. Section 1001 provides that: Whoever, in any matter within the jurisdiction ofat y department or agency of the United States knowingly and wilfully falsifies, conceals or covers up by any trick, scheme, or device a nitfterial fact, or makes any false, fictitious or fraudulent statement or representation, or makes or uses any false writing or document knowing me to contain any false, fictitious orfraudulent statement or entry, shall be fined not more than S10,000 or imprisoned not more than five yet rs. or both. FOR AGENCY USE VVC 000012725 Received YR MO OAY EPA perm 7550.23 (7-73) OFFICE: .EPA Region Number .State II This section contains 3 pages. S. Facility/Activity (see Instructions) Give the name, ownership, and physical location of the plant or Other operating facility where dis charge^) does or will occur. Name 10* Continental Oil Company VCM Plant Ownership (Public, Private or Both Public and Private) Check block If Federal Facility and give GSA Inventory Control Number Location Street & Number City County State t. Nature or Business State the nature of the business conducted at the plant or operating facility. osb sc Sd Ppub FED Hprv Depp 105e P,0. Box 605 lOSf Westlake 106 Calcasieu i osn Louisiana 106a a) Manufacture of Vinyl Chloride Monomer______ b) Manufacture of 1, 2 - Dichloroethane (EDC) toets AGENCY USE 7. Facility Intake Water (see instruc tions) Indicate water intake volume per day by sources. Estimate average volume per day in thousand gallons per day. Municipal or private water system Surface water Groundwater Other* Total Item 7 *11 there is Intake water from other,' specify the source. .8 Facility Water Use Estimate average volume per day in thousand gallons per day for the following types of water usage at the facility, (see instructions) Noncontact cooling water Boiler feed water Process water (including contact cooling water) Sanitary water Other* Total item 8 If there are discharges to other,* specify. If there Is 'Sanitary' water use, give the number of people served. EPA Form 7550-23 (7-73) 10'a TO' b IP c 1070 101 1071 icda 108b toac toad tote ios r iog ion I 1679 400 2079 thousand gallons per day thousand gallons per day thousand gallons per day thousand gallons per day thousand gallons per day Purchased Steam and' Process by-Produet FORM APPROVED OMB No. 158-R0100 .9 All Facility Discharges and other Lottes; Number and Discharge (see Instructions) Volume Specify the number of discharge points and the volume of water discharged or lost from the facility according to the categories below. Estimate average volume per day in thousand gallons per day. Surface Water Sanitary wastewater transport system Storm water transport system Combined sanitary and storm water transport system Surface impoundment with no effluent Underground percolation Well injection Waste acceptance firm Evaporation Consumption Other* Facility discharges and volume Total Item 9. * If there are discharges to `other, ' specify. ` 09211 jo9bl Number of Discharge Points _J____ 109a2 109b2 Total Volume Used or Discharged, Thousand Gal/Day 757 20 10Cl 109e2 ' 0901 10902 09e1 I09f1 1 0991 W9h1 10911 WOH- 091(1 0911 09ml 10942 109f2 10992 109H2 10912 10912 I09K2 942 360 10912 2079 Returned steam condensate FOR AGENCY USE 10. Permits, Licenses and Applications List all existing, pending or denied permit; , I leer ses and applications related to discharges from this facility (see instructions). Issuing Agency 1105 (a) For Agency Use (b) Tyc|e of P ermit Lice ise (c> D Number <dJ Date Filed YR/MO/OA (e> Date Issued YR/MO/DA m ate Denied YR/MO/DA (9) Expiration Date YR/MO/DA (*>): Army Coro of Engineers 2. L$CC Discharge 000459 Permit Dis charge None Ceitiflcat ion 71/6/21 71/5/27 JSEA. t3-JlSI m cnaYge jAQQQ3476 Pe rmit 74/8/27 79/10/30. 11. Maps and Drawings Attach all required maps and drawings to he back of this application.(see Instructions) 12. Additional Information ;112: Item Number Information EPA Form 75S0-23 (7-73) GP0KS.70S 1-3 VVC 000012727 03 CM FORM APPROVED OMB No. 158--ROiOO FOR AGENCY USE STANDARD 1:OR M C -- MANUFACTURING AND COMMERCIAL SECTIO NIL BASIC DISCHARGE DESCRIPTION Complete this section for each discharge indi< ated Section l. Item 9, that Is to surface waters. This includes discharges to municipal sewerage systems In which the wastewater does not go throu|g h a treatment works prior to being discharged to surface waters. Discharges to wells must be described where there are also discharges t 3 sui ce waters from this facility. SEPARATE DESCRIPTIONS OF EACH DISCHARGE ARE REQUIRED EVEN IF SEVERAL DISCHARGES riginate IN THE SAME FACILITY. All values for an existing discharge should be repre- sentative of the twelve previous months of operatic n. if this is a proposed discharge, values should reftect best engineering estimates. ADDITIONAL INSTRUCTIONS FOR SELE TED ITEMS APPEAR IN SEPARATE INSTRUCTION BOOKLET AS INDICATED. REFER TO BOOKLET BEFORE FILLING OUT THI-SE T'EMS. 1. Discharge Serial No. and Name a. Discharge Serial No. (see instructions) 201a 001 b. Discharge Name Give name of discharge, if any. (see instructions) 201b c. Previous Discharge Serial No. If previous permit application was made for this discharge (see Item 4, Section I), provide previ ous discharge serial number. 2010 001 2. Discharge Operating Oates a. Discharge Began Oate if the discharge described below is in operation, give the date (within best estimate) the discharge began. 202a 67 12 YR MO b. Discharge to Begin Date If the discharge has'never occurred but is planned for some future date, give the date (within best esti mate) the discharge will begin. 202 b YR MO c. Discharge to End Date If dis charge is scheduled to be discon tinued within the next 5 years, give the date (within best esti mate) the discharge will end. 202C YR MO 3. Engineering Report Available Check if an engineering report is available to reviewing agency upon request, (see instructions) 203 4. Discharge Location Name the political boundaries within which the point of discharge is located. state County (if applicable) City or Town 5. Discharge Point Description Discharge Is into (check one): (see instructions) Stream (includes ditches, arroyos, and other intermittent watercourses) Lake Ocean Municipal Sanitary Wastewater Transport System Municipal Combined Sanitary and Storm Transport System EPA Form 7550-23 (7-73) 204a 204b 204c Louisiana Calcasieu 209a JQSTR lke OCE MTS mcs II-l 204d 204 2Q4f Agency Use VVC 000012730 This section contains 9 pages. Municipal Storm Water Transport System Well (Injection) Other If 'other' is checked, specify 6. Discharge Point -- Lat/Long Give the precise location of the point of discharge to the nearest second. Latitude Longitude 7. Discharge Receiving Water Name Name the waterway at the point of discharge.(see instructions) DISCHARGE SERI AL. NUMBER 001 2()5b STS WEL OTH FOR AGENCY USE 206 206b 207a 9.3 pep -30.DEG 16 MIN 14 MIN -2.4.SEC 50 .SEC Unnamed Drainage Ditch to Bayou Verdine If the discharge is through an out* fall that extends beyond the shore* line or is below the mean low water line, complete Item 8. 8, Offshore Discharge a. Discharge Distance from Shore b. Discharge Depth Below Water Surface 9. Discharge Type and Occurrence a. Type of Discharge Check whether the discharge Is con tinuous or intermittent. (see instructions) b. Discharge Occurrence Days per Week Enter the average num ber of days per week (during periods of discharge) this dis charge occurs. c. Discharge Occurrence --Months If this discharge normally operates (either intermittently, or continuously) on less than a year-around basis (excluding shutdowns for routine mainte nance), check the months dur ing the year when the discharge Is operating, (see instructions) Complete Items 10 and 11 If "inter mittent" Is checked In Item 9.a. Otherwise, proceed to Item 12. 10. Intermittent Oischarge Quantity State the average volume per dis charge occurrence In thousands of gallons. 11. Intermittent Discharge Duration and Frequency a. Intermittent Discharge Duration Per Day State the average number of hours per day the discharge Is operating. b. Intermittent Discharge Frequency State the average number of discharge occur rences per day during days when discharging. 12. Maximum Flow Period Give the time period in which the maximum flow of this discharge occurs. EPA Form 7550-23 (7-73) 207b For Agency Use Major Minor Sub 207c For Agency Use 303e 2018a 208 b .feet .feet 20 H'" J{con) Continuous O(int) Intermittent 209b uldays per week 209c jan Dfeb Gmar may [Jjun Djul sep Doct Dnov Dapr Daug Ddec 210 -thousand gallons per discharge occurrence. 211a .hours per day 211b .discharge occurrences per day 21:: From 1-1- to 12 month month II-2 VVC 000012731 DISCHARGE SERIAL NUMBER 001 FORM APPROVED OMB No. 158--RO100 13. Activity Description Give a narrative description of activity producing this discharge.(see Instructions) Manufacture of 1, 2 - Dichloroethane by direct chlorination of ethylene___________________________ Manufacture of vinyl chloride monomer by thermal cracking of 1,2 - Dichloroethane Manufacture of 1,2 - Dichloroethane by oxychlorination of ethylene______________ 14. Activity Causing Discharge For each SIC Code which describes the activity causing this discharge, supply the type and maximum amount of either the raw material consumed (I tem 14a) or the product produced (Item 14b) in the units specified in Table l of the Instruc tion Booklet. ForSIC Codes not listed in Table I, use raw material or production units normally used for measuring production.(see instructions) a. Raw Materials SIC Code m. Maximum Amount/Day ill Unit (See Table I) Shared Discharges (Serial Number) (5) b. Products ai> SIC Code ill 2818 Name 12) Maximum Unit Amount/Day (See Table I) (3) m. Vhiyl Chloride 2200 P-1 1,2 Dichloroetha ne 3600 P-1 Shared Discharges (Serial Number) J1L None None EPA Form 7550-23 (7-73) II-3 VVC 000012732 D SCHAHCE SERIAL NUMBER 001 IS. Watte Abatement a. Waite Abatement Practices Describe the waste abatement practices used on this discharge with a brief narrative, (see Instructions) b. Waste Abatement Codes Using the codes listed in Table II of the Instruction Booklet, describe the waste abatement processes for this discharge in the order in which they occur if possible. Essentially all pujnps use mechanical seals (1) to 21 >a prevent leakage. Separation of liquid organic waste from water (2) followed by steam stripping of the water phase (3) with organic recovery (4). Organic waste are utilized by other manufacturers for other processes (5). A hot con- densate recovery system is provided (6),(7). Cooling water ::if is recycled (3). An oil separation pit is provided (9) : followed by neutralization (10) and monitoring (11). Effluent water then flows through an equalization basin (12), a 'it:2!6b activated sludge system (13). a clarifier (14) and a final aeration basin prior (see no. 26) (JU EPUVP3 i (?) E3EGRS . (3) PSTRIP REC0VE RUSE0R RHEATR RECYCL RECYCL LOCALS CNEUTR Cf/iONIT PEQUAL 1131 BACTIV CNUTRI O/tONIT , (14) FSKIMC CFLOCC STHICK i (15) POTHER CNEUTR i (25) EPA Form 7550-23 (7-73) n-4 vvc 000012733 DISCHARGE SERIAL NUMBER 001 FORM APPROVED OMB No. 1S8-RQ100 FOR AGENCY USE 16. Wastewater Characteristic! Check the box beside each constituent which is pre sent in the effluent (discharge water). This determination Is to be based on actual analysis or best estlmatc.(see instructions) Param Her 2l< G4> Ceu Parameter 2i$i c1> D Cu Color 00080 Ammonia 00610 Organic nitrogen 00605 Nitrate 00620 Nitrite 00615 Phosphorus 00665 Sulfate 00945 Sulfide 0074 5 Sulfite 00740 Bromide 71870 Chloride 00940 Cyanide 00720 Fluoride 00951 Aluminum 01105 Antimony 01097 Arsenic 01002 Beryllium 01012 Barium 01007 Boron 01022 Cadmium 01027 Calcium 00916 Cobalt 01037 Chromium 01034 Fecal coliform bacteria 74055 A Copper -X 01042 - Iron X 01045. Lead X 01051 Magnesium X 00927 Manganese X 01055 X Mercury 71900 Molybdenum X 01062 Nickel X 01067 K Selenium 01147 * Silver 01077 Potassium X 00937 Sodium X 00929 Thallium X 01059 Titanium X 01152 * Tin 01102 * Zinc 01092 * Algicides* 74051 * Chlorinated organic compounds* 74052 * Pesticides* 74053 X Oil and grease 00550 Phenols X 32730 Surfactants X 38260 X Chlorine 50060 Radioactivity* A 74050 JL X X X X X * X * * X X * * * X X X A X X * * A Specify substances, co upou ids and/or elements in Item 26. Pesticides (insecticides, fungitidcs, and rodenticidcs) must be reported in terms of the acceptable common names specified in Accotablt Common Names and Chemical Names for the Ingredient Statement on Pesticide Labels, 2nd Edition Environmental Protection Agency, Washington, D.C. 20250, June 1972, as requited by Subsection I62.ltb) of the Regulations for the Enforcement of the Federal Insecticide, Fungicide, and Rodentibide a[ct. * Best Estimate - not present EPA Form 7550-23 (7-73) vve 000012734 II-5 DISCHARGE SERIAL NUMBER 001 FOR AGENCY USE 17. Description of Intake and Discharge For each of the parameters listed below, eiftter In the appropriate box the value or code letter answer called foresee instructions) In addition, enter the parameter name and code and all required values for any of the following parameters if they were checked In Item 16; ammonia, cyanide, aluminum, arsenic, ber 'ilium , cadmium, chromium, copper, lead, mercury, nickel, selenium, zinc, phenols, oil and grease. and chlorine (residual). Influent Effluent Parameter and Code 217a Flow* Gallons per day 00054 50050 pH Units 00400 Temperature (winter) F 74028 Temperature (summer) F 74027 Biochemical Oxygen Demand (BOD 5-day) mg/1 00310 Chemical Oxygen Demand (COD) mg/1 00340 Total Suspended (nonfllterable) Solids mg/1 00530 Specific Conductance micTomhos/cm at 25 C 00095 Settlcable Matter (residue) ml/1 00545 *8 4D SS 2 H5 > - ^-< JOm JaS '>3. a e Cl (2) 51 a (3) .757 So > AXc. '- --O OWO< (4) a s >So E3E tOb3 ooa Sag. S O-gWx (5) UaS.* <c= C ^n sa Z< (6) (7) (8) .423 1.146 cont. 365 NA 6.0 9.0 cont. 365 70 60 40 cont 365 NA x ** 8|> 80 92 cont 365 NA ** <5 13.3 1.0 72 1/7 30 >4# X-tt 224 31 880 2/7 63 24# UUU 10 48 13 132 1/7 32 24. 11*A. N.A N.A. N. A N.A. N.A. N. A Other discharges sharing intake flow (serial njumbeks).(see instructions) ** Values based on discharge frd:'in biological treatment system from 7/l/77 - 1/31/78. *** Estimate obtained by combin ^ng actual values from biological treatment system and anticipated values from jieui ralization facilities. EPA Form 7550-23 (7-73) n-6 VVC 000012735 DISCHARGE SERIAL NUMBER 001 FORM APPROVED OMB No. 1S8-R0100 17. (cont'd.) Influent Parameter and Code m 4> 3 n *0 aCO Si e .? a Ammonia CO610 Aluminum 01105 Cadmium 01027 Chromium 01034 Copper 01042 Cyanide 00720 Lead 01051 Mercury 71900 See No. 26 1.0 < 3.10 < 3.01 < 3.04 < 3.01 3.00 . < 1.0 < 0.00 05 18. Plant Controls Check If the fol lowing plant controls are available for this discharge. Alternate power source for major pumping facility. Alarm or emergency procedure for power or equipment failure Complete item 19 If discharge is from cooling and/or steam water generation and water treatment additives are used. 19. Water Treatment Additives If the discharge is treated with any con ditioner, inhibitor, or algicide, answer the following: a. Name of Material(s) 218 APS ALM 219a b. Name and address of manu facturer 219b (Daily Average) In-Plant Treated Intake Water2 (Daily Average) Effluent Number of Analyses Sample Type Frequency of^ Analysis Maximum Value Observed or Expected During Discharge A ctivity Minimum Value Observed or Expected During Discharge Activity w Daily Average -si 3 .-v w 3 4.5 0.2 < 0.10 <0.10 <0.04 <0.01 0.024 <0.01 0.07 0. 'JOT 0.001 < 0.10 <0.001 <0.001 <0.01 <0.001 29 1/7_____ 50 24,; < 0.10 Random 24n < 0.05 Random 24^ 0.07 1/7 37 24,y 1.9 Random J0_ 241 0.001 0.3 0.0014 - Random Random Random 24* 24ri ^___ %M. e. Quantity (pounds added per million gallons of water treated). 21>c * See Note 17(c) EPA Form 7550-23 (7-73) 11-7 VVC 000012736 DISCHARGE SERIAL NUMBER 001 0. Chemical composition of these additives (see Instructions). 21 Sd Complete Items 20-25 If there Is a thermal discharge (e.g., associated with a steam and/or powe ' gene 'atlon plant, steel mill, petroleum refinery, or ari ' otner manufacturing process) and the total discharge fi ow Is 2 0 million gallons per day or more, (see i istructions) 20. Thermal Discharge Source Check the appropriate item(s) indicating the source of the discharge, (see instructions) Boiler Blowdown Boiler Chemical Cleaning Ash Pond Overflow Boiler Water Treatment -- Evapora tor Blowdown Oil or Coal Fired Plants -- Effluent from Air Pollution Control Devices Condense Cooling Water Cooling Tower Blowdown Manufacturing Process Other 220 N.A. O BLBD Qbccl APOF epbd OCFP cond CTBD MFPR OTHR 21. Discharge/Receiving Water Temper ature Difference Give the maximum temperature difference between the discharge and receiving waters for summer and winter operating conditions. Summer (see instructions) Winter 2*1 A 221b F. F. 22. Discharge Temperature, Rate of Change Per Hour Give the maximum possible rate of temperature change per hour of discharge under operating con ditions. (see instructions) 222 .F./hour 23. Water Temperature, Percentile Report (Frequency of Occurrence) tn the table below, enter the temperature which is exceeded io% of the year, 5% of the year, i% of the year and not at ail (maximum yearly temperature), (see instructions) Frequency of occurrence a. Intake Water Temperature (Sub)ect to natural changes) b. Discharge Water Temperature 223a 223b 10% p F 5% F F 24. Water Intake velocity (see instructions) 25, Retention Time Give the length of time. In minutes, from start of water temperature rise to discharge of cooling water, (see instructions) 224 225 .feet/sec. .minutes 1% Maximum F F F F EPA Form 7550-23 (7.71L .... u& vvc ooooiz-rvr DISCHARGE SERIAL NUMBER 001 FORM APPROVED OMB No. I58--R0100 FOR AGENCY USE Additional Informa tlon item 15(a) cont. Information to discha (15). Ammonia and Phosphoric acid are added to activated sludge ba sir} (16). Polymer is added to improve clarification (17). Acidic wa ste\vater from incinerator is neutralized (13) prior to nixine with biotogi cally treated water. Continuous measurements are taken fc dissolved ox ygen, temperature, ph, and flow (19). Biological sludge is thickened (20.) 16(a) Chlorine- ea organic compounds 1,2 < ich lorethane Ethy: Ch loride Ethy: ene Chlorohydrin 16{b) Alsricide; an 3 biocides for cooling tower treatment Alph; 52 3 Unite d C Liemical Corporation 601 i ort b. Leech P.0. Box 1499 Hobbs , N 3\t Mexico 83240 17(a) 17(c) 17(d) # Intake we 11 water These va .ues are from cooling tower blowdown 1 (1) (3) (4) (5) Nickel 0]L067| ----- o.20.' 0.2- 18 Zinc 01O1)2 i 0.17 1.1 0.32 2.45 Phenols .32730 <0.01 <0.01 <0.01 <0.015 Oil & Greis.se 00550 2.3 4.1 ----- 7.0 (6) Random Random Random Random (7) 26 28 -- -- (8) 24# 24# 24# 24# EPA Form 7550-23 (7-73) 1 I 1 | , j H"9 WC 0000127 VCM Plant April 14, 1978 V v- :-rto 0* ; jl ne~' Conoco Chemicals Continental Oil Company P O.Box 605 Westlake. Louisiana 70669 (318) 882-0550 Received /->' 2 JO"'-'} Mr. R. A. LaFleur Louisiana Stream Control Commission Drawer FC Universi ty Station Baton Rouge, LA 080? Dear Mr. LaFleur: REQUEST FOR NPDES PERMIT REVISIONS - PERMIT NO. LA 0003476 The CONOCO VCM PI ant ^located in Westlake, Louisiana, is requesting revisions to the existing NP DES Permit. Permit revisions requested are described in the attached 1 etter ti the EPA. The Louisiana Streb Control Commission requested additional information concerning total d issilved solids and chlorides from the CONOCO Chemical, VCM, and Refinery facilities. The following is the result of that study. Total Dissolved Solids and Chlorides Parameters with thb hi ghest concentrations that will be present in the new acid neutralization pi t discharge are chlorides and total dissolved solids (TDS). The concen :rat ions of these parameters will be significantly reduced with the dilutio n effects of water treatment system effluents from ths CONOCO Chemical, VCM, and Refinery facilities. The TDS and chloride levels of the effluents of each facility is presented in Table 1. These sources discharge to Bayou Verdine. The resulting TDS and chloride concentrations are as follows: Parameter CM Plan t (1) Combined VCM and Chemical Effluents VCM, Chemical, and Refinery Effluents Chloride, ppm TDS, ppm 24,421 41,291 8,087 14,008 5,176 9,156 Body of Water Affected Unnamed Drainage Ditih Bayou Verdine Bayou Verdine and Calcasieu River (1) Waste treatment system discharge plus acid neutralization pit discharge. VVC 000012739 R. A. LaFleur Page 2 April 14, 1978 The addition of the aciid neutralization pit discharge should have no significant adverse imi|(>act on Bayou Verdine or the Calcasieu River (Segment No. 030090 - salt water barrier to\Moss Lake). Louisiana water quality criteria for this segmidnt will.not be violated. An additional dilution source not included due to thfe lack of data is the municipal sewage treatment system discharge to Bayou ^/er^Jine upstream of the VCM and Chemical plants' discharges. The existing CONOCO Ch^mical and VCM plants' effluents have never exhibited any toxicological e ffe<t ts on the receiving waters. Bioassay tests (12-96 hrs.) conducted by Kem-Telc h Laboratories in August, 1975, of both Chemical and VCM plants' effluents ( 100 solutions) resulted in 100% survival of two fish species - marsh kil lifi sh and bluegill sunfish. A 50% mixture of the two effluents resulted in 00% fish survival. The addition of the discharge from the acid neutraliza tion pit should not result in any additional toxic risks to aquatic organisms i n Bciyou Verdine or the Calcasieu River. Should additional i nfofmation be required, please contact Gary Fishee, Chief Process Engineer at (3 8) 491-5062. Sincerely, 0. A. DeBernardi Plant Manager Lake Charles VCM Pi ant is Enc BCC: REL-JEC-CRH-JD-GLF-pLF- JQG-RLH-JN vvc ooooizf^o TABLE 1 TDS AND CHLORIDE LEVELS OF VCM - CHEMICAL PLANTSf AND REFINERY'S EFFLUENTS PARAMETER CHLORIDES PPM IBS/HR VCM PLANT__________________________________ CHEMICAL PRLEAFNINTERY Waste Treatment Acid Neutralization Waste Treatment Waste Treatment System Discharge Pit Discharge System Effluent System Effluent (VCM ID DISCHARGE #2XVCM DISCHARGE #1) 7,777 1,750 122,974 4,673 450 297 253 146 TDS PPM IBS/HR \ 15,185 3,417 195,868 7,443 1,259 708 1,014 499 FLOW _________________ MM LBS/DAY ___________________ 5.4 (450 gpn) 0.91 (76 gpn) 13.5 ' (1125 gpm) 11.82 (985 gpm)