Document YBw8yrEB2x59dM70JVb2KLR0

n //. U.S. Environmental Protection Agency Region V Surveillance 5t Analysis Division > Eastern District Office Compliance Monitoring Field Report 1- Permittee Identification General Tire 5c Rubber Company Middle Road P.O. Box 68 Ashtabula, Ohio 44004 (216) 998-1120 Corporate Office: The General Tire 5c Rubber Company 1 General Street Akron, Ohio 44309 . (216) 798-3000 * NPDE5 Permit: OH 0002283 Receiving Stream: Fields Brook to Ashtabula River Responsible Official: Gerald E. Brumbaugh Technical Superintendent, Ashtabula Plant 2. Dates of Inspection and Survey; January 22-23, 1980 3. Participants Permittee . Gerald E- Brumbaugh, Technical Superintendent Ohio EPA Melinda Becker, Environmental Scientist Mark Baumgardner, Environmental Scientist U.S. EPA Mark Moloney, Environmental Engineer, Author Charles Beier, Engineering Technician Joseph Good, General Mechanic Philip Gehring, Chief, Field Section Roland Hartranft, Engineering Technician 4. Objective This compliance sampling inspection was conducted-pursuant to a December 19, 1979 Enforcement Division request. The purpose of this study was to verify compliance with NPDES permit OH 0002233 and applicable stream standards. In GENC 004180 IV addition, three special tests were performed at this facility in order to check for the presence of any toxic pollutants in the company discharge. These tests included two static bioassay tests, scans for organic pollutants, and the Ames test. 5. Summary of Findings and Conclusions a. The sample results from this compliance inspection show General Tire to be achieving the limits contained in the NPDES permit. Seif-monitoring data, however, indicates General Tire has had problems in the past meeting the limits contained in the permit. The company achieved all permit requirements in only two of twelve months in 1979. These records indicate that the plant has exceeded the BOD^, COD, total suspended solids and total dissolved solids limits contained in the permit. ^ x b. The Company was found to be doing the dissolved solids analysis incorrectly. A drying temperature of 105C was being used instead of the 180C specified in standard EPA methods. Tne Ohio EPA mistakenly told the company to use the incorrect temperature. The company was informed during this inspection that the correct drying temperature is 1S0C- c. Based upon the data collected during this study a high concentration of ?inr in the General Tire discharge increases the zinc level in Fields Brook above Ohio WQS for a NVarmwater Habitat. Zinc is not limited in the NPDES permit and the discharger does not monitor this metal. d. Eleven volatile, and three non-volatile organics were found to be present in the Genera] Tire discharge. These compounds and their reported concentrations are listed below. <^1. 1. tff 2. 3. 4. 5. 6. 7. 9. 10. 11. Volatile Organics Detected (3 grab samples! chloroform (74 ug/1) carbon tetrachloride (4.5 ug/1, 5.7 ug/1) trans-l,3-dichJoropropene (5.5 ug/1) trichloroethylene (290 jjg/1, 28 ug/1, 19 ug/1) 1,1,2,2-tetrachloroethane (1.0 ug/1) tetrachloroethvlene (3.4 ug/1, 1.7 Ug/1) toluene (5.6 ug/i, 0.5 Ug/i, 4.0 ug/1) chlorobenzene (4.0 ug/1) 1-methoxy-i-propene (670 ug/1, 21 ug/1, 660 ug/1) 1,1 oxybisethane (5.3 ug/i, 460 ug/1) l,l,2-trichloro-l,2,2 trifluoroethane (4.9 ug/1, 1.6 ug/1) Non-Volatile Organics Detected Tone 24-hour composite sample) 1. Bis(2-ethylhexyl)phthalate (2.4 pg/I) 2. phenanthrene (0.5 ug/1) 3. anthracene (0.5 ug/i) The first eight volatile organics listed and all three non-volatile organic compounds are priority poliutants. e. The Ames Test performed on the General Tire effluent sample proved to be negative. That is the effluent did not induce a rnutagenic/carcinogenic response in the test bacteria. 6EHC 004161 f. The static fish bioassay results show no significant toxicity to the fathead minnow, however, the 48 hour acute mortality to daphnia was 100%. 6. Description of Permittee A. Facility The General Tire and Rubber Company - Piastics/Chemical Division Plant in Ashtabula Township manufactures a variety of polymers of vinyl chloride and a vinyl acetate-vinyl chloride copolymer. The average daily production is 310,000 lbs. Operations at the facility are on a 24 hours per day, 7 days per week basis. The plant location and the location of its wastewater discharge to Fields Brook are shown on Attachment//!. B- Process Attachment if2 is a schematic of the suspension polymerization process utilized at General Tire. This process begins with a batch reaction of monomer, water and several additives including catalysts, buffers, and emulsifiers in eighteen 4000 gallon reactors. The reaction lasts nine to twelve hours. At this time, polymerization is 93% complete. The unreacted monomer is steam stripped from, the polymer slurry and reused. The polymer slurry is centrifuged and dried in a rotary drum drier to a consistency of 1% or less moisture. This polymer cake is then sifted and transferred to storage silos. The finished product is then transferred in bulk from the silos to either rail cars or trucks for shipment. Besides the main process operations listed above, several support functions are also carried out at this facility. These include: 1. A Boiler House which contains 3 gas fired boilers. The-blowdown from this facility is treated at the wastewater treatment facility. 2. Water Treatment - Both the boiler feed water and the processing water are pretreated in a clarifier and filtered through both sand and carbon filters. The water is also passed through an ion exchange column and a zeolite softener. The backwash water from the filters is routed to the wastewater treatment facility along with regenerate wastewater. C. Wastewater Treatment An average of 386,500 gallons of water is used per day at the plant. The water usage is tabulated below: Usage Process Boiler Feed Cooling Water Sanitary Miscellaneous % Total Volume 58% 24% 11% (recirculated) 2% 5% General Tire obtains their raw water from Ashco Water 5upply and the Ashtabula City Water Treatment System. Attachment //3 contains a flow diagram showing the wastewater treatment system. This system contains a neutralization pit followed by three aeration ponds operated in series. The major wastewater sources to this system include flows from the preneutralization pit discharge, wastewater from the stripper, incinerator scrubber water, cooling water, and miscellaneous storm drain flows. The preneutralization pit contains several flows which when combined neutralized one another. The flows to this pit include backwashes from the sand and carbon filters and regenerate waste from the ion exchange column. The regenerate wastes from the water softener are discharged directly to the neutralization basin. Monovinyl chloride (MVC) is recovered from several wastewater streams by steam stripping. These waste streams include: gasholder drainwater, flow from the gasholder knockout pot, and reactor rinse water. All these flows are discharged to the treatment system. The recovered MVC is returned to the reactors for processing to polyvinyl chloride (PVC). The gases vented from the steam stripping are incinerated in order to reduce the concentration of MVC being discharged to the atmosphere. One of the combustion products is chlorine which combines with the scrubber water to form hydrochloric acid. This waste stream is neutralized at the neutralization pit with a lime slurry. Sanitary wastewater from the plant flows through a septic tank, is chlorinated and is-then discharged to the second aeration pond. D. Solid Waste Disposal The sludge collected in tne- wastewater treatment ponds is dredged three times per year. This material is hauled away and disposed of by Reserve Environmental Services Inc. (RES) of Ashtabula, Ohio, which operates a segregated landfill near the plant on Middle Road. This material may contain a large number of organic priority pollutants and possibly a high concentration of zinc. This is indicated by the sampling results of this inspection. " A complete report on the March 12, 1980 inspection of the Reserve Environmental Services, Inc. facility in Ashtabula written by Willie Harris of EDO has been forwarded to the Compliance Section of the Region V Enforcement Division. The reader is referred to this report for further information on the RES facility. Other wastes which include trash, paper bags, and reactor cleanings (polymerized vinyl chloride) are sent to Doherty Lancffill in Geneva, Ohio. General Tire is currently talking with Reserve Environmental Services Inc., however, about the possibility of accepting the reactor cleanings. - E. Self Monitoring Currently the General Tire and Rubber Company is collecting samples for sell monitoring in accordance with the NPDE5 permit. The process discharge (Outfall 601) is sampled manually with a 24 hour composite sample being collected. This sample cqnsists of twelve equal volume aliquots collected every two hours. Two grab samples are also collected upstream and downstream of the plant discharge to Fields Brook. The process discharge is sampled once per week and the instream samples are grabbed once each montn. Ail samples are kept refrigerated prior to being analysed. During periods when the flow from the process discharge (Outfall 601) differs from the plant discharge to Fields Brook (Outfall 001) because of runoff from the plant grounds entering the combined sewer which conveys this water to the creek, an additional 24 hour composited sample is collected at 001. All the samples collected are analysed by the company in a laboratory on The plant site, reportedly, within specified holding times. The samples from Outfalls 001 and 601 are analysed for BOD,, COD, suspended solids, and monovinyl chloride. Temperature, pH and flow measurements are also made at these sampling points. The two grab samples collected in the stream are checked for dissolved solids, pH and temperature. It should be noted that the sonic flow meter used to measure the process wastewater flow (601) was not operational during this inspection. The plant discharge to the creek (001) is equipped with a parshall flume and a recorder which was working properly. GEHC 004163 All the analyses done in the plant laboratory are done in accordance with the procedures outlined in Methods for Chemical Analysis of Water and Wastes EPA 600/679-020, with the exception of dissolved solids. At the request of Melinda Becker of the Ohio EPA Northeast District Office a drying temperature of 105C was being used by the company instead of the 1S0C outlined in Standard Methods. Melinda Becker of Ohio EPA, who was present during this inspection, explained that she had told company officials to use the 1Q5C temperature. This temperature is listed on the computer printed Ohio EPA discharge monitoring report sheets sent to the company by OEPA. The NPDES permit for this facility, however, calls for the analysis of pollutants to conform to 40 CFR 136 "Test Procedures for the Analysis of Pollutants". These procedures call for a 1S0C drying temperature in the analyses for dissolved solids. During the discussion at the plant the company expressed its willingness to conduct the analyses in the proper manner. It was explained during the inspection that the correct drying temperature is 1S0C and this temperature should be used. 7. Description of Compliance Monitoring Field Survey A. USEPA Sampling Methods and Locations Sample Sites Samples were collected at three sites during the survey. Attachment #1 shows the locations of these sampling points. The company's process discharge sample point at the overflow weir on pond #3 designated (601) was not suitable for automatic samplers and so a manhole immediately downstream (75-80 feet) was employed. In addition to the company discharge two grab samples were also collected approximately 75 feet upstream and downstream of Outfall 001. Since there was no runoff from the plant grounds the flows at 601 and 001 were identical and a sample was not collected at 001. Flows were measured at this point using the company's flume. An Ashco water supply sample was collected at the SCM Corporation Plant down the road from General Tire. Since two sampling inspections besides General Tire were being conducted in the area and all the plants used the same water supply, a single raw water sample was collected for the three studies. Sample Collection The composited samples taken at Outfall 001 were collected with ISCO automatic samplers. These samples were kept iced during the compositing period. Grab samples were collected upstream and downstream of the plant discharge (001). These included general chemistry, nutrient, metals, and phenol samples. In addition a non-voiatile organic scan sample (24 hour composite) and three volatile organic scan samples (grabs) were collected at Outfall 001. Additional sample water was also collected to conduct the static Bioassay Tests and the Ames test. The samples were preserved during collection and transport and all the samples were analysed within specified holding times. Flow Measurement The company- discharge flow was measured using the company's flume located at Outfall 001. Flow measurements were also made upstream and downstream of the plant using an AA Gurley Meter. The upstream flow value, however, is believed to be in error in that it does not agree with the downstream value and further data taken upstream. GENC 004164 B. Permittee Particioation General Tire and Rubber Company personnel were cooperative during this inspection. Company reoresentatives observed portions of the sampling program and were provided split samples. C. State Participation Ms. Melinda Becker of the Ohio EPA participated in this inspection. The State was provided split samples. D. General Conditions The air temperature during the survey was in the teens. Several inches of snow fell during the survey with no appreciable effect on flows. Plant production during the survey was 309,000 lbs. This is very close to the average daily production of 310,000 lbs. \ 8. Discussion Attachment if 4 contains the results of the sampling survey and the NPDES permit limits. The company was in compliance with NPDES permit limits on the survey date. However, the self-monitoring reports for 1979 indicate the discharge exceeds permit limits. A list of these instances in 1979 is included in Attachment #5. The company in the past year had problems meeting the limits for BOD^, COD, total suspended solids, and total dissolved solids. Discharge monitoring by the company was found to be satisfactory with the exception of the lab analyses done for dissolved solids. The company was using the wrong drying temperature in doing this test because they were mistakenly told by Ohio EPA to use a drying temperature of 105C. The company was notified during this inspection to use a drying temperature of 180C. This error does make the past dissolved solids data suspect. The results of the volatile and non-volatile organics samples collected at the General Tire discharge are also contained in Attachment #4, These samples were analysed for volatile and non-volatile organics of significant concentrations using gas chroma tographs (FID) and computerized gas chromatography-mass spectrometry. Eleven different volatile organic compounds were detected in one or more of c- three grab samples of the General Tire effluent. The eleven compounds were: \jf - A. chloroform (74 pg/1)* -2. carbon tetrachloride (4.5 pg/1, 5.7 pg/1)* <3. trans-i ,3-dichloropropene (5.5 pg/1) 4. trichloroethylene (290 pg/1, 28 pg/1, 19 pg/D* <5. 1,1,2,2-terrachlorethane (1.0 Pg/1) <35. tetrachloroethylene (3.4 Pg/1, 1.7 pg/1)* 7. toluene (5.6 pg/1, 0.5 Pg/1, 4.0 Pg/1) 8. chlorobenzene (4.0 pg/1)* 9. 1-methoxy- 1-propene (670 Pg/1, 21 Pg/1, 660 pg/1) 10. 1,1 oxybisethane (5.3 pg/l, 460 pg/l) n. 1, l,2-trichioro-l ,2,2-trifiuoroethane (4.9 pg/1, 1.6 pg/1) Priority Pollutants 0/ H 1 X i * r- < X1 X aZSC X / X h- ', u X 7c o s* ^ X 6^ //: . X ; '1 The first eight of the compounds listed above are priority pollutants and the five compounds with an asterisk are known or suspected carcinogens. GENC 004165 It should be noted that the reagent blank run as a quality control check was contaminated with 5 ug/1 toluene. Thus, the presence of this compound in the G.T. discharge is suspect. Three compounds were detected in the 24 hour composited non-volatile organic sample of the General Tire effluent. These three compounds were: Bis(2ethylhexyOphthalate (2.4 ug/1), Phenanthrene (0.5 ug/1), and Anthracene (0.5 ug/1). All three are priority pollutants. Bis(2-ethvlhexyl)phthalate is a phthalate ester and can be detrimental to aquatic organisms at low water concentrations. A freshwater criterion of 3 ug/l is recommended in Quality Criteria for Water. This concentration is also the Ohio Water Quality standard for a warmwater habitat. Although the level detected in the plant discharge is below this criteria its presence still may be of some concern. ' In addition to the organic scans done on the General Tire discharge sample, the Ames Test and a bioassay were also conducted. The Ames Test is used to indicate the presence of mutagenic/cardnogenic compounds. It involves the exposing special strains of bacteria to concentrated portions of the-sample in question. Changes in genetic structures in the strain of bacteria used are relatively common and occur at a predictable rate under normal conditions. These changes are detectable by differences in colony growth rate (size of colony) or other variations which develop when these bacteria are exposed to various growth media. Changes in genetic structures for this test are called revertants. When revertants occur at a rate greater than 2.5X the normal or background rate, there is an indication of the presence of mutagenic or carcinogenic compounds in the sample being tested. Toxidty is detected by the absence of bacteria, and may occur without an indication of mutagents/carcinogens. Dose response is reported as positive when a pattern of revertant counts develops with several different concentrations of the sample in question. The results of the Ames Test conducted with a General Tire composited effluent sample was negative. These results are contained in Attach ment 4. The bioassays were done using fathead 'minnows (Pimep'nales promelas) and daphnia magna. The tests were again done with a composited wastewater sample of the company's effluent and the results of these tests are also included in Attachment 4. The fish and daphnia bioassays were static tests using undiluted effluent samples and are reported as percent mortality with > 50% being an unacceptable level. The static fish bioassay results show no significant toxicity to the fathead minnow, however, the 4S hour acute mortality to daphnia is 100%. A possible cause of the daphnia mortality may be the high level ox zinc in the discharge or the synergestic effect of several pollutants possibly including several of the organic pollutants identified in the organic scans. Attachment 6 is a comparison of the upstream, downstream and plant discharge data with the Ohio Water Quality Standards for a Warmwater Habitat. A total of five chemical characteristics exceeded these limits downstream of General Tire. These were dissolved solids, iron, mercury, phenols and zinc. In the case of dissolved solids and iron, the standards were exceeded upstream of the plant as well as downstream. The concentrations of both dissolved solids and iron in the General Tire effluent was low and appears to have had a diluting effect on the water quality of Fields Brook during this study. The concentration of mercury and phenols rises between the upstream and downstream sampling points, however, the General Tire discharge concentrations are not great enough to explain this increase. In the case of zinc, the General Tire discharge obviously had an adverse effect on the quality of Fields Brook during the study. The upstream zinc value was beiow detection limits while the discharge (0.171 mg/1) and the downstream concentration (0.114 rng/1) were above the 0.095 mg/1 warmwater quality limit. Zinc is not monitored by the company and the NPQES permit contains no total zinc limits. GENC 0041 1. Hiatt, H.H., 3.D. Watson, and J.A. Winsten: Origins of Human Cancer, Cold Springs Harbor Laboratory, Cold Springs Harbor, New York, 1977. GENC 00416? So nCi: Elw.jdpwo ,\*U< (-il-rf jc CA'ltcxJ flt-r^r. BMls MiH' c ^tciftit- *tcc f o rfc -it c ( /IL S O V ^ / jJl< fc C <?C6 o.^ ) d |utilfiAfO *t scuueec *. tJATd - U/ATC-li. ijRiPrtx- W" 1----- Grti.rfOL.Ptli PtirttAJ -- GAiHtM-o(rt. KtjoUfin"1 for A [,4 Lrot A/'J Uyrt li> ---Vf><ttiJtt>ntAn r nrio/f PiT ACAAToU. PorttD 4f- / in f C UMlLlt Sllll'Jf t ,r ue c.m t. ,L,U(, TOi^ric fuiwp(n/ii--rti; jfc COOLIyG ILf 4 T L: Jt ^ n. p t l> w P>J!n1 STurt rt6 C fii/uo Y..V...V nr A __So.wijcr>. UPrrt|-./oLu. J i.tTT4IUi NCTMJK jo atu.A.J-\ FOMO It- c O rt CrfAT1 ~t:; klHTlC | LiMueJ POWO JI 5 To Aicu* pn^tiJi -- HoU niihi -- Oi'JlUlfUti --- SroftrA___ V- GEHC 00416? Volatile Organic Analysis of Iff fluent from , General Tire Corporation, Ashtabula - January 22-23, 1980 . (3 grab samples) Datc/Time of Collection Compounds Detected 1,1 -Dicbloroethanc J, 2-Dichloroetbylene Chloroform 1,2-Dichloroethane 1,1,1 -Trichlorocthane Carbon Tetrachloride Bromodichioromcthane 1 -Brorno-2-Chloroethane 1,2-Dichloropropane Trans-1,3-DichJoropropene Benzene Trichloroethylene Chlorodibromomethane 1,1,2, Trichloroethane Cis-i, 3- Dichloropropene Bromoform 1,1,2,2-TetrachIoroethane Tet r achloroethylene Toluene Chlorobenzene t-methoxy-1 -propone* 1,1 Oxybisethane* 1,1,2-Trichloro - 1,2,2-TriI!uoroethane* 1-22-80/0950 VGA itl EDG473 80-EM04S04 <1.1 < 1.1 < 1.5 <1.1 < 1.7 4.5 <3.8 <4.6 <0.7 < 1.7 <0.5 290 < 1.5 < 1.5 <1.5 < 1.4 1.0 3.4 5.6 <0.5 670 5.3 4.9 1-22-80/2215 1-23-80/0915 Sample Number and Concentration (ppb) VOA it 2 ED0473 80-EM04S05 VOA it 3 ED0473 S0-EM04S06 <1.1 <1.1 <1.1 <1.1 74 <1.5 <1.1 <1.1 < 1.7 < 1.7 5.7 < 1.8 < 3i8 <3.8 <4.6 <4.6 <0.7 <0.7 <1.1 5.5 <0.5 <0.5 28 19 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.4 <1.4 < 1.0 <1.0 1.7 <0.5 0.5 4.0 4.0 <0.5 21 660 460 <0.1 1.6 <0.1 (Coniii'mcl) Reagent Blank ED0473 30-EM 04 R07 11.8 <1.1 < 1.5 <1.1 < 1.7 <1.8 <3.8 <4.6 <0.7 <0.7 <0.5 <6.0 <1.5 < 1.5 <1.5 < 1.4 < 1.0 <0.5 5.0 <0.5 <0.5 <0.5 <0.5 GENC 004V70 from General Tire; Corporation, Ashtabula - January 22-23, 19.30 (One 24-hour Composited Sample) (Continued) Date Collection Time Period 1/22-23/2.0 0945-0915 Sample Number and Concentration (ppb) Compounds Detected ED0473 S0-EM04S0I 1,2-Dichlorobenzene <0.1 1,4-Dichlorobenzene <0.1 Trichlorobcnzene <0.1 Naphthalene <0.1 Diethyl Phtlialate <0.1 Fluoranthene <0.2 Pyrene < 0.2 Bis (2-ethylhexy 1 )ph thalate 2.4 Isophorone < 0.7 Phenanthrene 0.5 Anthracene 0.5 I-(2-Butoxycthoxy)ethanol* <0.1 Tetrachlorobenzencne <0.1 Dimethyl Naphthalene* <0.1 Phenol* <0.1 Benzonitrlle* <0.1 l-Methyl-4-Ethenyl Benzene* <0.1 Phenyl Ethanone* <0.1 Methyl Phenol* <0.1 Dimethyl Phenol* <0.1 1,1-2-ethyl biphenyl* <0.1 Unknown Silyl Compounds* <0.1 Di-n-Butyi Phthalate* <0.1 Total Aliphatic Hydrocarbons* <0.1 Other Unidentified Compounds <0.1 GENC 004171 Attachment 4 (Continued) General Tire Ames and Bioassay Results General Tire Effluent Date Sampled 1/22-23/SO Ames Test Results CRL Data Set No. 473 473 Sample Number SO EM 04 SOI SO EM 04 SOI Concen tration 100X 200X Revertant Counts X Background Counts li 1 Toxicity None None Dose Response None None Genera! Tire Bioassay Test Results CRL Data Date Sampled Set No. Sample Number 1/22-23/80 473 SO EM04 SOI 473 80EM04S0I Control Sample Control Sample Aliquot Hi HI n\ n Fish % Mortality Daphnia % Mortality 24 hrs 48 hrs 96 hrs 24 hrs 48 hrs 0 5 100 100 0 0 90 100 0 0 00 0 0 00 GENC 004172 J Date 1/79 1/73 1/79 1/25/79 1/25/79 1/25/79 Excursions from January 1979, through December 1979, as Reported in Entity's Self-Monitoring Reports Outfall Parameter Reported Value Monthly Avg. Permit Limit - Daily Max. 601 601 ' 601 601 601 601 bod5 bod5 COD BOD5 BOD. COD 4S mg/1 63 kg/day 195 mg/1 155 mg/1 183 kg/day 333 mg/1 20 mg/1 32 kg/day 150 mg/1 33 mg/1 54 kg/day 290 mg/1 2/79' - In Compliance 3/79. 601 BOD^ 3/79 601 bod5 3/79 601 COD 3/1/79 601 bod5 3/1/79 601 bod5 3/15/79 601 bod^ 3/15/79 601 bod5 62 mg/1 78 kg/day 208 mg/1 141 mg/1 166 kg/day 144 mg/1 192 kg/day 20 mg/1 32 kg/day 150 mg/1 33 mg/1 54 kg/day 33 mg/1 54 kg/day 4/79 - In compliance 5/79 601 6/79 601' 7/79 601 8/79 601 TDS TSS TDS TDS 942 mg/1 22 mg/1 956 mg/i 1276 mg/1 900 mg/1 20 mg/1 900 mg/1 900 mg/1 9/79 10/79 11/79 12779. 601 TDS 601 COD 601 TDS 601 TDS 1089 mg/1 1$6 mg/i 1147 mg/1 933 mg/1 900 mg/1 150 mg/I 900 mg/1 900 mg/l GENC 004173 Parameter Flow (MGD) Ammonia-N Beryllium Cadmium T. Residual Chlorine Chromium Copper Cyanide Dissolved Oxygen Dissolved Solids Iron Lead MBAS Mercury Nickel Oil and Grease Pesticides PH Phenolic Compounds Phosphorus Pnthalate esters PCB's Selenium Silver ' Zinc Temperature, C Comparison oi USEPA Survey Results and Ohio Water Quality Standards Upstream 4.29* (mg/1) 0.76 <0.001 <0.002 -- <0.005 0.008 -- 10.1 2474 1.740 <0.030 -- 0.0002 <0.030 -- -- 7.3 0.003 -- -- -- <0.003 < 0.050 2.0 Plant Discharce Downstream Ohio WQS Warmwater Habitat 0.378 (mg/1) 3.73 (mg/1) (mg/1) 0.67 0.78 10.1 <0.001 <0.001 1.100 <0.002 <0.002 0.012 0.0 -- 0.002 0.009 0.007 0.100 0.023 0.015 0.20 ** ---- 0.025 -- 9.9 . 5.0 768 2214 1500 0.666 1.930 1.000. <0.030 <0.030 0.030 ---- 0.500 0.0002 0.0004 0.0002 <0.030 <0.030 0.025 ---- 5.0 None detected -- Various limits for the different pesticid 7.40-7.55 ' 7.6 6.5-9.0 0.006 0.014 0.010 ---- 1.0 0.0024 in the form of Bis(2 ethylhexyl) phthalate None detected -- 0.003 0.000001 -- -- 0.01 x 96 hours LC50 <0.003 <0.003 0.01 x 96 hours LC50 0.171 0.114 0.095 ** 17.0-17.5 5.0 6.7 monthly avg. 9.4 daily max. *Fiow suspected to be in error. fyBased on a calculated hardness downstream of 165 mg/1 as CaCC>3. * GENC 004174