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Home My WebLink AboutNC0046892_Wasteload Allocation_19931220Iqq(, i?� -- iaF-t. Wrnsocttei> . NPDES WASTE LOAD ALLOCATION PERMIT NO.: NC0046892 PERMITTEE NAME: Shell Oil Company FACILITY NAME: Charlotte Terminal Facility Status: Existing Permit Status: Modification Major Minor Pipe No.: Design Capacity: .025 MGD Domestic (% of Flow): Industrial (% of Flow): 100 Comments: Groundwater remediation consisting of contamination from gasolines, jet -A fuel and diesel fuels. attached are analysis sheets of contamination. Region requests tox. test. tF r.o -t" ti40 ,1-kg,1-kg 4i'(A RECEIVING STREAM: an unnamed tributary to Long Creek Clay( WS-IV_ 5F6-11F'+vT Sub -Basin: 03-08-34 moo!✓ ( M3 ' Reference USGS Quad: F15SW, Mtn.Isl.Lake (please attach) County: Mecklenburg Regional Office: Mooresville Regional Office Previous Exp. Date: 8/31/96 Treatment Plant Class: 0 Classification changes within three miles: no change within three miles. Requested by: Randy Kepler Prepared by: ?)/,v7,it ,4/ Reviewed by: (1t/-L2 • IO4 bjt, r7 �Cti Wes- � Date: 9/27/93 Date: Date: /a Modeler Date Rec. # -AMA/ ' 'gip eik7/93 76,05- Drainage Area (mil )� !�?- / Avg. Streamflow (cfs): O 7Q10 (cfs) C) Winter 7Q10 (cfs) Toxicity Limits: IWC % Instream Monitoring: Parameters Upstream Location Downstream Location C? 30Q2 (cfs) d AcuteChronic) Recommended Limits Oil and Grease (mg/1): pH (SU): Benzene (14/1): Toluene (14/1): 1,2 Dichloroethane (µg/1): Xylene (µg/1): MTBE (µ.g/1): Lead (14/1): r. L.UL V tw 1111) Special Instructions or Conditiou t _ Mon. Avg. - 30 NT Daily Max. 60 6-9 1.19 11 99 monitor monitor 25 Frequency Jmonth Wmonth Monthly monthly monthly monthly monthly monthly BTEX parameters should be monitored using an EPA -approved method to a detection level of 1 ppb. Permit must contain flow monitoring requirement such that all volumes of wastewater leaving the facility are monitored. Recommend continuous flow monitoring. Recommend quarterly monitoring for those chemical parameters to be limited or monitored. This monitoring should coincide with all whole -effluent toxicity monitoring. A reopener clause should be placed in the permit to allow for additional limits on these or other toxicants should the whole -effluent toxicity testing results indicate toxic effects. Comments: TABLE 6 GROUND WATER CHEMICAL ANALYSES FROM PUMPING TESTS AND TANK CONDENSATE WATER ANALYTICAL PARAMETER COMBINED RW-A AND RW-B TANK BOTTOM WATER MW-2 UNDER VAC. BENZENE (PPB) 120 2,500 6,150 TOLUENE (PPB) 460 2,400 16,900 ETHYLBENZENE (PPB) 460 94 2,400 XYLENE (PPB) 4,100 2,700 13,100 TOTAL BTEX (PPB) 5,140 7,694 38,700 MTBE (PPB) ND (4-2D 542 TOTAL HARDNESS (mg/I) 96 170 43.3 TOTAL DISSOLVED SOLIDS (mg/I) 140 520 90 SUSPENDED SOLIDS (mg/I) 19 14 284 TOTAL ORGANIC CARBON (mg/I) 11 2,000 474 CHEMICAL OXYGEN DEMAND (mg/I) 51 6,400 288 LEAD (mg/I) 0.030 0.034 0.131 FILTERED LEAD (mg/I) 0.008 0.008 0.038 IRON (mg/I) 11 5.5 21.8 FILTERED IRON (mg/I) < 0.15 < 0.15 0.333 MANGANESE (mg/1) 2.7 3.8 1.28 Sample analyzed by ACCUTEST ACCUTEST FLOWERS PPB = Parts per billion (micrograms per liter) mg/I = Milligrams per liter (parts per million) ND = Not detected above method detection limits SAMPLE DATE 08/17/90 08/17/90 08/17/90 08/17/90 J.. 11/07//90 11/07/90 11/07/90 11/07/90 11/07/90 11/07/90 05/29/91 05/29/91 05/29/91 05/29/91 05/29/91 05/29/91 05/29/91 05; .:9/91 05/29/91 05/29/91 01/24/92 01/24/92 01/24/92 01/24/92 01/24/92 01/24/92 01/24/92 01/24/92 01/24/92 01/24/92 01/24/92 01/24/92 01/24/92 01/24/92 01/24/92 01/24/92 01/24/92 01/24/92 01/24/92 01/24/92 Table 3 SUMMARY OF GROUND uATER CHEMICAL ANALTIICAL RESUIIS (1990, 1991, 1992) SHELL TERMINAL CHARLOTTE, NORTH CAROLINA ETHYL TOTAL 1,1 1,2 TENIAIIvEI.T BENZENE 10LuENE BENZENE XYLENES BIEX MTSE IPE DCE DCE NAP I EDB Pb IIOENIIFIEO I 1 Z / I ` l ( COHPOuNoS • 2 3 RINSE BLANK 4 a TRIP BLANK 02/26/92 02/26/92 02/26/92 [11) 02/26/92 02/26/92 02/26/92 02/26/92 02/26/92 05/91 05/91 05/91 05/91 9 10 11- 12 13 14 15 160 RINSE BLANK TRIP BLANK 22 23 27 28 29 30 31 32 35 36 TRIP BLANK FIELD BLANK EOUIP BLANK 190 40 EQUIP BLANK 4200 1700 1200 4800 14000 23000 2200 12000 ND 1.1 N0 ND ND NO ND ND 2.1 2.3 k N0 67 120 370 280 830 12000 4300 1300 7400 3.3 H0 2.7 2.7 7600 400 NO 1800 ND ND ND ND 8400 ND ND ND NOT SAMPLED (SEPARATE PHASE HYDROCARBONS) 2300 950 270 810 NOT SAMPLED (SEPARATE PHASE HYDROCARBONS) 6800 6300 NO 2400 NO ND , ND 110 12000 ND HD NO NO NO ND ND ND NO ND ND ND ND • NO ND 150 75 73 160 7700 . 4000 2600 �28 0l 0 ` 5) 2700 11000 7400 2800 ND 3400 9500 3000 NO 2000 33 65 32 260 10000 5800 790 3300 110 ND HD ND N01 SAMPLED (SEPARATE PHASE HYDROCARBONS) 4400 960 500 1200 7900 6100 710 3500 8900 2000 660 2900 NO NO N0 ND 230 77 440 540 3500 280 NO 450 7200 3000 290 1800 NO NO HD NO NO ND ND NO ND ND ND ND 81 u0 N0 NO ND ND ND ND ND NO ND ND ND 1/0 NO NO 340 NO ND ND NO NO NO N0 16000 18000 2000 11000 NO NO NO ND 11900 51200 1.1 NO EXXON Mu-1 3000 390 HO ND ExXON Ku-12 NO NO ND NO EXXON Mu.31 NO NO NO N0 EXXON MV-32 ND N0 NO ND 71.4 1600 25000 8.7 9800 ND KE1 : MA • wOl ANAtT1E0 NO • N01 0EIEC1E0 ABOVE MEtn00 DEIEC11ON U NITS (MO') • • t0041111E0 COnPOuiDS 0E1(CIED BCLOV ►Ot UIS1E) IN APPENOICES. .. _....�...nn..• r...rtl� a C TCO THC h41F or SAMPt ING 8400 NO 4330 N0 15500 ND 12000 ND ND ND 458 14870 83900 76700 13600 14500 390 19890 110 7060 18210 14460• NO 1287 4230 12290 NO N0 N0 81 NO NO ND 340 NO 47000 ND 3390 NO HO NO HA NA NA NA ND ND NO NO ND ND NA NA NA NA NA NA HA NA ND ND No NO NO ND NO NO ND N0 ND ND N0 ND ND N0 ND N0 NO NA NA NA NA ND 33 8900 ND ND N0 NA NA NA MA NA NA NA NA 72 1400 3200 2900 780 680 32 1800 2000 N0 810 2100 NO 50 1800 ND NO ND N0 N0 NO 200 27 ND kD NO ND HD NO ND NO 5.2 6000 1500 560 2700 3900 1200 ND 2000 20 ND ND NA NA NA NA N0 N0 ND ND ND ND No ND NO ND HD ND HA NA ND NO NO ND NO NO ND N0 NO N0 NO HO NO ND ND ND ND NO N0 NA NA NA NA ND NO NO ND NO NO NA NA NO NO NO HD NO ND ND NO NO ND N0 ND NO N0 NO ND k0 NO NO N0 610 N0 NO N NO NO N0 N0 NO ND 13 NO ND N0 N0 N0 NO ND 250 ND ND ND 138 230 ND NO 1,1 OCE • 1,1 • 01CHLOROETHANE 1,2 OCE • 1,2 • OICHLOROETHANE NAP • NAPHTHALENE E00 • ETHYLENE 010ROHIDE N0 ND 390 NO 230 ND 430 320 53 14 200 NO ND NA 80 480 150 160 510 160 150 140 N0 28 S00 ND N0 NO NA NA NA NA N0 ND 1.8 NO 3.5 NA JP NO NO NO NO • N0 410 NO 170 NA IS NO 0.83 6.4 1.8 NO 1.2 ND NA ND ND NO u0 ND N0 NO N0 N0 N0 ND NO NO ND No ND NO NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA HA NONE NONE J J NONE NONE • NONE • NONE NONE 120 NONE 320 J (160; J 68 27 J 10 J 11 2L J 39 J ND HONE 6 HONE NO J 10 J NO NONE ND NONE ND NONE NO N0 NO ND NO NO 5%0 NO NA NA MA NA 21 N0 NO 18 NO 16 40 N0 NA HA NA NA NONE NONE NONE NONE NONE HONE NONE NONE NONE NONE NONE TABLE K-1 TABLE OF GROUND WATER CONCENTRATIONS AVERAGED TO,/PREDICT INFLUENT CONCENTRATIONS FOR AIRSTRIPPER DESIGN AS-CONC MJ 12-17-92 SAMPLE DATE MW# TOTAL B T E X BTEX MTBE IPE NAP LEAD 05/29/91 05/29/91 01/24/92 01/24/92 01/24/92 01/24/92 01/24/92 01/24/92 01/24/92 11 13 RW-A (23) ** 25 27 *** 28 29 ** RW-B (29) ** 35 TRENCH **** TANK CONDENS. 2300 950 270 810 4330 NA NA 320 NS 6800 6300 ND 2400 15500 NA NA 53 NS 9500 3000 ND 2000 14500 ND 680 160 10 10000 5800 790 3300 19890 ND 1800 510 510 • 10000 5800 790 3300 19890 ND 1800 510 NS 4400 7900 960 6100 500 710 1200 3500 7060 18210 ND ND ND 810 160 150 24 7900 6100 710 3500 18210 ND 810 150 24 3500 280 ND 450 4230 ND 1800 ND 0 6000 3527 190 1817 11534 0 467 160 160 3000 2000 500 4000 9500 34 WEIGHTED WATER CONC. AVE. 6482 3711 405 2389 12987 0 42 44 97 NOTE : KEY: THE PREDICTED FLOW FROM EACH OF THE RECOVERY WELLS, TRENCH, AND TANK CONDENSATE WATER WILL BE APPR WILL BE APPROXIMATELY 1 GALLON PER MINUTE EACH, FOR A TOTAL FLOW OF 12 GALLONS PER MINUTE. ** = ANALYSIS OF THE CLOSEST WELL ANALYZED *** = CONCENTRATIONS BASED ON MW-25 VALUES **** = TRENCH CONCENTRATIONS BASED ON THE AVERAGE FROM WELLS 18, 13, AND 35. 76()J'Ata (ii)02,4-AiY O Pi" (fi44ZI,r14 (0/4/14-P) ,03134/ /514-Je6ikVi-l/1 77.ere I:Can ,a,.,?:/17)1 M/p/i41 ,54ne-mAorb, .071 #/s� '!� /'l, ! I.S /$ a ,1 YO ,�t� o(7/xli-eb-44`ai, rree/i4:47..5-71r,-44...0 /15 ,1 %1t//S /q5 %h,14ct1. mg.( oif' 4/sin?/,G1 4v v'. %frt ,arptr�S. T heir yr z i lte r r/AJd? /s 1,;( C / ?7741 ') Ae_c ci ,sue A * "�,&&1i. ,; ,,,,, 71,frgd 4,, eil er-- e41..;t fali°, a5 fiz": ik /6 _ ,.frshr d ivte? 744i ,/.1 i At / ,,,, 4/ ilei4c1 44a/- 46.4:. t dit 7 � '7 Ape!Se ,'i ti.7 4kw 66di/ewe-he:/1,141 4wd/h.ms. 47,/,..447 4t/-7"-Acjiiiii/ ;11E-L7/7/to 45 f a-yrni c w/4,1,1/. /1 ke6/61 ,If -Arf-,(6-174. 4444 10:4-0 xi i1 LI r- , -4 giciv/prikpi pitg. t41 .;/ l':?:,' /C fiVe1/1 le/ft-0 Pft,116 /Pc- - J I_ f; 4 hem /at ; 4•,43 icy AA? /i) oe(604-7Iad 10,4142ri< / 5‘/Iroo 37, roc 7oo IktrO0 52/. -OM 700 tof0 520 720 5/0 /1/0/1/7-0/e(Aitr (Wrix,r1) L Ah7t4A "tatttn(,i Z. Pic hInroti-440t 4: Ze4d Ah7i70(.67 Pk: K1 kw, 41/seti, m Facility Name: NPDES No.: Type of Waste: Facility Status: Permit Status: Receiving Stream: Stream Classification: Subbasin: County: Regional Office: Requestor: Date of Request: Topo Quad: N.C. i) r;=7', OF F:NVi : NT, tir.ALT11 cc i? FACT SHEET FOR WASTELOAD ALLOCATION Di:^ s ? 1,93 Request # 7605 Shell Oil Company/Charlotte Terminal DIVISION OF EuviRTIMENTI,L NC0046892 (002 pipe only) M,OORESILLE REGIONAL Orr,_ Industrial - 100% Existing Modification (addition of 002 pipe for GW remediation discharge) UT to Long Creek WS-IV 030834 Mecklenburg Stream Characteristic; DRY DITCH Mooresville h USGS # Kepler 9/27/93 F15SW Date: Drainage Area (mi2): Summer 7Q10 (cfs): Winter 7Q10 (cfs): Average Flow (cfs): 30Q2 (cfs): IWC (%): 0.1 0.0 0.0 0.0 0.0 100 Wasteload Allocation Summary (approach taken, correspondence with region, EPA, etc.) This facility already has a 001 outfall for stormwater. This request is for a groundwater .o remediation discharge (002 outfall). Although this facility appears to conform to the minimum requirements for a general permit, the Mooresville Regional Office requests an individual permit be r1 issued so a WET test can be given. The fact that jet fuel may be stored there and the public scrutiny(recently f this area justifies this issuance. � A quarterly, chf onic WET test will be given as a pass/fail analysis at 90%. Limits will be given at -0 plc!, the water quality standard or EPA criterion for benzene, toluene, 1,2-dichloroethane, and lead. Monitoring for xylene, and MTBE will also be given. Information sent by the facility from samples collected in the plume were the basis for these decisions. Special Schedule Requirements and additional comments from Reviewers: Recommended by: / 4 Date: ///0? Reviewed by Instream Assessment: Date: (� 4 Regional Supervisor: C Date: /2/ /i? Permits &Engineering: �,�- Date:! RETURN TO TECHNICAL SERVICES BY: DEC 2 9 1993 2 Type of Toxicity Test: Recommended Limit: Monitoring Schedule: Recommended Limits Oil and Grease (mg/1): pH (SU): Benzene (µg/1): Toluene (µg/1): 1,2 Dichloroethane (11g/1): Xylene (1.1.g/1): MTBE (µg/1): Lead (µg/1): TOXICS/CONVENTIONAL PARAMETERS Chronic pass/fail using ceriodaphnia (QCL P/F) 90% Nov, Feb, May, Aug Mon. Avg. 30 Daily Max. 60 6-9 1,Ici 11 99 monitor monitor 25 Frequency WQ/FI 2/month 2/month -Kw. quarterly WQ quarterly WQ quarterly WQ quarterly quarterly quarterly \ WQ rr\ci-ki!\ I - w;N� x Parameter(s) are water quality limited. For some parameters, the available load capacity of the immediate receiving water will be consumed. This may affect future water quality based effluent limitations for additional dischargers within this portion of the watershed. OR No parameters are water quality limited, but this discharge may affect future allocations. MISCELLANEOUS INFORMATION & SPECIAL CONDITIONS Special Instructions or Conditions BTEX parameters should be monitored using an EPA -approved method to a detection level of 1 ppb. Permit must contain flow monitoring requirement such that all volumes of wastewater leaving the facility are monitored. Recommend continuous flow monitoring. Recommend quarterly monitoring for those chemical parameters to be limited or monitored. This monitoring should coincide with all whole -effluent toxicity monitoring. A reopener clause should be placed in the permit to allow for additional limits on these or other toxicants should the whole -effluent toxicity testing results indicate toxic effects. Explain exact pathway of discharge ( i.e. storm sewer to tributary, etc.) Additional Information attached? (Y or N) If yes, explain with attachments. Facility Name --/-ntf r tika}r 1 T if emus # I Pipe # � CHRONIC TOXICITY PASS/FAIL PERMIT LIMIT (QRTRLY) The effluent discharge shall at no time exhibit chronic toxicity using test procedures outlined in: 1.) The North Carolina Ceriodaphnia chronic effluent bioassay procedure (North Carolina Chronic Bioassay Procedure - Revised *September 1989) or subsequent versions. The effluent concentration at which there may be no observable inhibition of reproduction or significant mortality is `/, % (defined as treatment two in the North Carolina procedure document). The permit holder shall perform quarterly monitoring using this procedure to establish compliance with the permit condition. The first test will be performed after thirty, days, from the effective date of this permit during the months of cc,1:, : :' • i, �;, ? < ` , ✓ . Effluent sampling for this testing shall be performed at the NPDES permitted'final effluent discharge below all treatment processes. All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge Monitoring Form (MR-1) for the month in which it was performed, using the parameter code TGP3B. Additionally, DEM Form AT-1 (original) is to be sent to the following address: Attention: Environmental Sciences Branch North Carolina Division of Environmental Management 4401 Reedy Creek Road Raleigh, N.C. 27607 Test data shall be complete and accurate and include all supporting chemical/physical measurements performed in association with the toxicity tests, as well as all dose/response data. Total residual chlorine of the effluent toxicity sample must be measured and reported if chlorine is employed for disinfection of the waste stream. Should any single quarterly monitoring indicate a failure to meet specified limits, then monthly monitoring will begin immediately until such time that a single test is passed. Upon passing, this monthly test requirement will revert to quarterly in the months specified above. Should any test data from this monitoring requirement or tests performed by the North Carolina Division of Environmental Management indicate potential impacts to the receiving stream, this permit may be re -opened and modified to include alternate monitoring requirements or limits. NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control organism survival and appropriate environmental controls, shall constitute an invalid test and will require immediate retesting(within 30 days of initial monitoring event). Failure to submit suitable test results will constitute noncompliance with monitoring requirements. 7Q10 L . cfs Permitted Flow i c 2- ° MGD Reeemmended by: IWC Ic Basin & Sub -basin CT ?' %6 0, 7 ii/r/- Receiving S ,eam r l4 i -r. t/yl( CrLc ,.,( County , E/'KctiJ/t iC� , Date /%/ /1_ QCL PIF Version 9191 v1� 4r92 r/r �rnf3o -q,oe5led rfeaimend wEr-of) •/tM k State of North Carolina Department of Environment, Health and Natural Resources Division of Environmental Management James B. Hunt, Jr., Governor Jonathan B. Howes, Secretary A. Preston Howard, Jr., P.E., Director June 10, 1993 S. J. Turner, District Mgr. -East Shell Oil Company PO Box 1703 Atlanta, GA 30371 LDF-1NJR itrfi't•r s •-»,at��zf� .. Subject: NPDES Permit Modification 1 NPDES Permit No. NC0046892 Shell Oil Co./Charlotte Terminal Mecklenburg County Dear Mr. Turner: On February 18, 1992, the Division of Environmental Management issued NPDES Permit No. NC0046892 to your company. A review of our file has indicated that an error was inadvertently made in the permit. Accordingly, we are forwarding herewith modifications to the subject permit to correct the error. This permit modification consists of noting on the "Effluent Limitations and Monitoring Requirements" page the procedures to follow when discharging hydrostatic test water. Please find an enclosed amended "Effluent.... " page which should be inserted into your permit. All other terms and conditions contained in the original permit remain unchanged and in full effect. These permit modifications are issued pursuant to the requirements of North Carolina General Statutes 143-215.1 and the Memorandum of Agreement between North Carolina and the U. S. Environmental Protection Agency. This permit modification becomes effective immediately. If any parts, measurement frequencies or sampling requirements contained in this permit are unacceptable to you, you have the right to an adjudicatory hearing upon written request within thirty (30) days following receipt of this letter. this request must be in the form of a written petition, conforming to Chapter 150B of the North Carolina General Statutes, and filed with the Office of Administrative Hearings, Post Office Drawer 27447, Raleigh, North Carolina 27611-7447. Unless such demand is made, this decision shall be final and binding. Continued... P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone 919-733-7015 FAX 919-733-2496 An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper Turner, Page 2 If you have any questions concerning these permit modifications, please contact Mr. Jule Shanklin at telephone number 919/733-5083. Sinc rely yours, )- reston d, Jr., P.E. cc. Mr. Jim Patrick, EPA Mooresville Regional Office Compliance Group Central Files Technical Support Branch Enclosure A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS FINAL Permit No. NC0046892 During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge from outfall(s) serial number 001- STORMWATER AND HYDROSTATIC TEST WATER******. Such discharges shall be limited and monitored by the permittee as specified below: Effluent Characteristics Discharge Limitations Monitoring Requirements Lbs/day Units (secif (p y) . Measurement Sample *Sample Mon. Avg. Daily Max Mon. Avg. Daily Max. Frequency Tyke Location Flow** Weekly Instantaneous E Oil and Grease 30.0 mg/I 60.0 mg/I 2/Month Grab E Settleable Solids 0.1 m 1/ I 0.2 m 1/ I 2/Month Grab E Acute Toxicity*** * * * * Grab E Organics * Sample Locations: E - Effluent Samples taken in compliance with the monitoring requirement specified above shall be taken at the following location(s): the nearest accessible point after final treatment but prior to actual discharge to or mixing with the receiving waters. Monitoring will be conducted during normal work hours. The facility shall record the appropriate time the discharge begins and stops during a discharge period. This Permit imposes no limitation of the discharge of storm water runoff uncontaminated by any industrial or commercial activity and not discharged through any oiUwater separator or other treatment equipment or facility. / '' ** The discharger shall record the approximate times that discharge began and ended, along with the instantaneous flow at the times of effluent sampling. *** Acute Toxicity (Fathead Minnow 24 hour) Monitoring, Episodic, See Part III, Condition E. * * * * Monitoring shall be conducted during the first five discrete discharge events after the effective date of this Permit, and then on an annual basis thereafter, with the annual period beginning January of the next calendar year. The annual test must be performed and reported by June 30. If no discharge occurs by June 30, notification must be made to the Division by this date, and monitoring must be performed on the next discharge event for the annual monitoring requirement. CONTINUED... . A. ( ). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS FINAL (Continued) Permit No. NC0046892 During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge from outfall(s) serial number 001 - STORMWATER AND HYDROSTATIC TEST WATER******. Such discharges shall be limited and monitored by the permittee as specified below: Effluent Characteristics Discharge Limitations Monitoring Requirements Lbs/day Units (specify) Measurement Sample *Sample Mon. Avg. Daily Max Mon. Avg. Daily Max. Frequency Type Location * * * * * See Part III, Condition F. ****** The facility shall note on DMR when discharge contains hydrostatic test water and notify the Mooresville Regoional Office at least twenty four (24) hours prior to releasing hydrostatic test water. NOTE that only test water from clean tanks is allowed to be discharged. The pH shall not be less that 6.0 standard units nor greater than 9.0 standard units and shall be monitored 2/month at the effluent by grab sample. There shall be no discharge of floating solids or visible foam in other than trace amounts. e . 4 . of „�1�, T; . Yz- q?R56D Al Pi SrE)A-. - kP fl gaN CO W- O *4/ etl -1--t qmoi —POft C rAet? "D, a/ 3j Ard(L)412Ca> C-n 6(s' 1s c5M41741a4 &t r Si t J Cr w n�-ar� L� Vci.0 "DtSU{A 6 CM'.. Mk`J P (As October 22, 1991 CERTIFIED MAIL P620 346 567 Mr. George T. Everett, Director State of North Carolina Division of Environmental Management P. 0. Box 27687 Raleigh, North Carolina 27611-7687 Dear Mr. Everett: RE: NPDES Permit No. NC0046892 4.47,- AifteiL Sett Shell Oil Company OCT 9 aktig Jf)t- -�7Go P.O. Box 1703 Atlanta, Georgia 30371 320 Interstate North Parkway Atl OCT 28 1991 DiV OF ENVIRONMENTAL NVION,;W.,. DIRECTOR'SOFFICE �! AST. We have reviewed the draft permit issued on September 20, 1991 and our specific objections are as follows: 1. The effluent from outfall 001 consist of stormwater only, some of which will have flowed across driveways and dike areas. With this in mind, we question the number of parameters that you have listed under the effluent Characteristic's column for outfall 001. It is our opinion that a permit, relative to outfall 001, covering storm - water of this nature should at the most carry parameters for flow, pH and oil/grease only. Again, there are no oil/water separator effluents discharging to outfall 001. 2. Under Part A of outfall 001, we question the measurement frequency of 2/Month for outfall 001. It is our opinion that a measurement frequency of once per quarter would be more in line for effluent of this nature. Also, we question the measurement frequency of weekly for flow. Flow, relative to outfall 001, will only occur when we discharge; therefore, we request that flow be required at the same frequency as the parameters. 3. Under Part A of outfall 001, it states that the sample type for flow shall be instantaneous. On page 3 of 14 instantaneous flow is defined as a measure of flow taken at the time of sampling, when both the sample and flow will be representative of the total discharge. Furthermore, flow is expressed as a 24 hour average. These definitions do not relate very well to our type of operation. Under our operation, the dike valve is closed at all times unless we have a manned discharge. Therefore, we do not have a continuous 24 hour discharge. We request that under sample type for flow, the wording estimate or measured be inserted in lieu of instantaneous. Then when we discharge, we will mark on the discharge monitoring report an estimated or measured flow in million gallons per day that corresponds with the sampling event. TAL9129504 - 0001.0.0 4. Under Park A of outfall 001, we question the Acute Toxicity requirements. No problems have surfaced with recent sampling for Toxicity on outfall 001. 5. Part II, Section C, page 7 of 14 states that the permittee shall employ a certified wastewater treatment plant operator. We request that this statement be removed because we do not operate a waste- water treatment facility. 6. Part II, Section C, page 11 of 14 states that appropriate flow measurement devices shall be installed. Since we are dealing with a stormwater only discharge relative to outfall 001 and the stormwater is retained in a dike area, we request that volume calculations be used to estimate the flow. In lieu of the above mentioned facts, we request that you reconsider the discharge limitations and monitoring requirements that you have outlined in the draft permit relative to outfall 001. At the present time, we are working with the Department of Health and Natural Resources to delineate and remediate underground contamination at our site. Recovery well water is being generated and we would like to request that a second outfall be set up to cover the recovery water discharge as well as our contact water. Contact water includes tank bottoms and storm runoff from some of the operating areas. We estimate that approximately 372,000 gallons of recovery/contact water will be generated per year. This figure could increase if we generate additional recovery well water during remediation. Should you have any additional questions, please feel free to contact this office. Sincerely, 41 T. R. Turner Jr. Environmental Engineer (404) 955-4635 cc: Plant Superintendent - Greensboro TAL9129504 - 0002.0.0 WHOLE I 1ENTTOXICITY TESTING 0(SELF-MONITORING SUMMARY] Mon, Oct 14, 1991 FACILITY SCOTCIAIAN STORE 876 NPDES8: NC0074667 County: WAYNE Reties: WARO PP: 0.006 7 010: 0.00 I W C(%):100.00 REQUIREMENT YEAR JAN FRI MAR APR MAY JUN All, AUG SEP OCT NOV DEC PERMIT CHRONIC LIMIT: 99% '87 Begin 1407/88 Frequency: Q P/F '88 - - - - - - - - - - - - Months: FEB MAY AUG NOV '89 - NR FAIL - FAIL - - FAIL - - II - SOC/10C Req: '90 FAIL NR I1 - - - - - - - - - '91 - - - FAIL FAIL - - NR SEALED AIR CORP. 001 NPDES8: NC00062$4 County: CALDWELL Region: ARO PP:0.45 7 Q 10: 8.00 I W C(%): 8.02 PERMIT CHRONIC LIMIT:8.0% Bcgui 8/l88 Pmqucncyc Q P/F Months: MAR JUN SEP DEC SOC/JOC Rcq: ,87 '88 - - - - - - - - FAIL - - PASS •89 - - PASS - - PASS - - PASS - - NR '90 - - PASS - - PASS - - PASS - - PASS 91 - - PASS - PASS - - SENTERS REST IIOME PERMIT OIRONIC LIMIT:99% (GRAB), 4/1/94-NO LIMIT. '87 NPDES/: NOD048101 Beguc4/1/91 Frequency: Q P/F G '88 County: IJARNETT Region: FRO Months: JAN APR JUL OCT '89 PF: 0.007 SOC/JOC Rcq: '90 7010:0.0 IWC(%):100.00 '9l PASS - - PASS - SHELBY WWTP PERMIT CHRONIC LIMIT:12% Y '87 FAIL FAIL - - (FAIL) - FAIL (-) - FAIL (-) NPDESS: NC0024538 Begin:4/23/87 Ftequcncy. Q P/F '88 NR (-) FAIL - (-) - NR FAIL - - FAIL County: CLEVELAND Region: MRO Months: MAY AUG NOV FEB '89 - FAIL - - FAIL - - NR FAIL FAII, NR PF:6.0 SOC/JOC Reg: '90 - PASS - - PASS - - PASS PASS 7010:70.5 IWC(%):11.63 JOC 7/89.4/92:C R Q P/F MONIT 73%, 12% LIMIT @ RELOC 91 - PASS - - PASS - - PASS SIIELL OIL CO. PERMIT:481B1 ACUTE MONIT EPIS(GRAB) '87 NPDESII: NC0003549 Begin: 6/1/90 Fv qucny: 5 OWD '88 County: JOHNSTON Region:12R0 Months: '89 PP: VARIES SOC/JOC Req: '90 >90 - >90, >90 >90 >90 7Q10: 0.00 IWC(%): 100.00 '91 - SI IELL OIL CO.-001 NPDESI: NC0046892 County: MECKLENIURG Region: MRO PP: NA 7 Q 1 0: 0.0 I W C(%):100.0 PERMIT:48 HR ACUTE MONIT EPIS Begin: 6/1/90 Frequency. 50WD Months: SOC/JOC Req: '87 '88 '89 '90 - - - NONIi >90.>90 >90,>90 '91 - - NONE - - - - - SILER CRY W WTP PERM IT CHRONIC LIMIT:92% '87 NPDES/: N00026441 Begin: 6/1/90 Frequency: Q P/F A '88 County: CHATHAM Region: RRO Months: MAR JUN SEP DEC '89 - - - - - - - - NONE NONE NONE NONE' PF: 1.8 SOC/JOC Req: '90 NONE. NR >90 - - - - - FAIL bt, PASS - FAIL 7010:0.25 IWC(%):92 SOC-5/9N1-4/l/94.I.IMIT AT 92% '91 FAII. FAII. FAII. PASS - PASS - PASS SILVER HILL MINE NPDESI: NCO:74497 County: DAVIDSON Region: WSRO PP:0.432 7 010: 0.00 I W C(%):100.00 PERMIT CI IRONIC LIMIT:99% Begin 4/15/91 Frequency: Q P/F A Months: FEB MAY AUG NOV SOC/JOC Req: '87 '88 '89 '90 '91 SOUTHERN BELL-GLBONSCO NPDESk N0007S108 County: WAYNE Region: WARO PF: 0.086 7 Q 10: 0.0 I W C(% ):100.00 PERMIT CHRONIC LIMIT:99% (GRAB) Begirt: 2/2189 Frequency: Q P/F A Months: FEB MAY AUG NOV SOC/JOC Rcq: '87 '88 '89 N - - FAIL - - FAIL 11 '90 FAIL 11 - - I - - - - 91 - - - - - PASS - NR SOUTILPRN RAILWAY(SPENCER-011) PERMIT CHRONIC LIMIT: 29% NPDESE NC0029246 Begin:9/189 Frequency: Q P/F A County: DAVIDSON Reties: WSRO Months: MAR JUN SEP DEC PP:0317 SOC/JOC Req: 7010:1.2 IWC(%):29.0 N '87 - - - NR - - - - - - <10 39.1 '88 87.5 P40 80.7 58.4 19.1 49.4 21 34.8 38.0 34.9 49.4 47.0 '89 69.2 27.2 22 1.7 - 93.0 90.3 NONE 65.5 - - PASS '90 - - PASS - - NR PASS - NR bt NR FAIL '91 NR - PAIL NR PAIL PASS - - PASS 1 0 2 consecutive (awes = Spit -want noncompliance Y Pre1987 data available LEGEND: PF=Permined Bow (MGD), 7Q10=Reeelving stream Tow flow criterion (cfs), 1WC%=Iosrcam waste concentration, Begin=Fist month required. Frequency e(Monimring frequency): IQ -Quarterly; M-Mceuhly; BM-Birnomhly; SA•Semiwu ually; A -Mutually; OWD-Only when discharging; D-Discaninued monitoring requirement; IS-Ccnducting independent study], P/F=Pass/Fail chronic bioassay. Ac=Acute, Clu=Ouonic, Aoquartcrly monitoring increases to monthly upon single failure, (Diu Notation): (C.-Fathead Mirnow, •=Ceriodaphnu sp., my=Mysid shrimp. OIV=Oronic value, P=Mortality of stated percentage at highest concentration. at=Perfomnd by DEM Aq Too Group. bt=Bad test], (Reporting Notation(: (-=Data not required, NR-Not reported, ( )=Begiming of Quarter], (Faciity Activity Stains): II=Inactive, N=Newly Issucd(I'o construct), H=ACtive but not discharging] 43