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Home My WebLink AboutNC0003875_Wasteload Allocation_19910808NPDES DOCUMENT SCANNING COVER SHEET NC0003875 Castle Hayne plant WWTP NPDES Permit: Document Type: Permit Issuance asteload Allocation Authorization to Construct (AtC) Permit Modification Complete File - Historical Engineering Alternatives (EAA) Correspondence Owner Name Change Staff Comments Instream Assessment (67b) Speculative Limits Environmental Assessment (EA) Document Date: August 8, 1991 This document is printed on reuse paper - igiiore any content on the re -sr -ex -se side NPDES WASTE LOAD ALLOCATION PERMIT NO.: NC0003875 PERNIITTEE NAME: FACILITY NAME: Occidental Chemical Corporation Castle Hayne Plant Facility Status: Existing Permit Status: Renewal with Modification Major Minor Pipe No.: 001 Design Capacity: 1.04 MGD Domestic (% of Flow): Industrial (% of Flow): 100 % Comments: Requesting flow increase from 0.747 MGD due to treatment of groundwater and process area stormwater. Pollutant analysis attached. The company is requesting that the tox test % be based on more recent 7010 data. 001 and 002 combined before discharge into the river. RECEIVING STREAM: the Northeast Cape Fear River Class: Swamp Sub -Basin: 03-06-23 Reference USGS Quad: J 27 NE County: New Hanover Regional Office: Wilmington Regional Office (please attach) Previous Exp. Date: 7/31/91 Treatment Plant Class: Class IV Classification changes within three miles: none Requested by: Rosanne Barona Date: 7/2/91 Prepared by: itzd/ `' f� Date: g 5— q/ Reviewed by: � � 0- -- Date: . f Modeler Date Rec. # PA6 1/214/ 4,340 2 �Zlo Drainage Area (mi ) Avg. Streamflow (cfs): /800 /f 7Q10 (cfs) 2S Winter 7Q10 (cfs) go 30Q2 (cfs) Acut 'Chronic Toxicity Limits: IWC 6 • % % Instream Monitoring: Parameters Upstream Location Downstream Location /Sb 4/1 Effluent Characteristics c �tj iC,, . pig to M4X• BOD5 (mg/1) 016341.1 t NH3-N (mg/1) D.O. (mg/1) TSS ( I-3I- t3vrnc 3L'3. 2- F. Col. (/100 ml) pH (SU) G.0—q.0 1.0t1V►lt lTeHkikii01 D. 21 i%s J d 0.5 5—1 in ci Tirrx-04kOMRAM I.7Z 1 bsid 3.444 (bs cl Kl q‘6L (lhs ld01) G PI /• ?7 zuuc- (1bsidu 2711 ,- /S �iv4,9e s'ztlu.(L (4 C.) ,II47?/.k-) Tel ncesvhorus(JI) mew//aV Comments: kl FOR APPROPRIATE DISCHARGERS, LIST COMPLETE GUIDELINE LIMITATIONS BELOW Effluent Characteristics Monthly Average /d Daily Maximum Arr Comments Tofr.l Sus &.ala f sjdke, : /7/. 6 3/13. 2 (/jfSe. //'4A, 7_s J+ex-& Cr 0. A'7 O. CS- else ter 144 To -fa." c r, A l a 3 .4' y (yea ex i s f t'# /•'/m rlS -- i. U , q(I 1.1 7 bt1S eXr'SI/ /1/n1/15 Z-4‘ ii.C.— ,.V. 5.!7 * 5. /5 4- exc ef f tro And 1 IA c re_a_se_ * Am> -Cep, e ta I L4;L1e Rh e , P0r z;n c- . - Type of Product Produced ns -1/Day Produced Effluent Guideline Reference Sodiu hs chram.tio_ 3 %d cFn 10 5 S24.6®4.,71-Q S'a t+ C.ke (jVa2SOq) .- 447 - s c h r ohm' c A-dcf 1$ 0 ¥o c F R Lit S SCtittr1`A i Occ;c'enfr& I Clie,nicai 4740 cFR g15 .Se/c.(�tf .Soil'TJ;co1r azi 6P T Lss , /61 a t roar r `T or I) ith 0, 3;��i v/}.''1F 1V10 C: Mo„i1,IJ A ,0 V� Lj0 /4.5 -ror e&lciAi {;ors lAS C i' ..r -%Lri .. r a ti:. 1 c a f.,► Jt; ''' ::r / r ?rcchf � . c L /v ) of-- f755 . a — M0M! Aver 5cf, (or??Yr-isz. 3 Y6 1 d , I) (0 , -;)( t-- c.,Y 7 (A00094)(/'/E:5); I 0 , 0.0 2,- ) 7, ,2 (0 0 3 : r•-r.20) .,. • . : y H 4c) 9' ,vo (pie? -5T)T (P AI , „ C eit a co, •• (, 003:c..1)('75' 5, \ \ / 9 5 4f 0 r(X 5op) ?rock c 4;0 ki 8 0 -1(-)riso r '36O ope trs ksc 3 • .4-4t/d r ..--r., A I P 416 (3 6 c.-?) IS3 I , / • ,. ; . : • • 0 , 3 / le" / C •• 1.1.- r 2 0• C' �S I4ex. Cr /, Cr , 7:4); f fr r , Ze 2, 57 A ( #6. /410/4:, 'a ti 0,e0, la-- 1, o5 5` 7, 7; a f ), 58V- y 341 1 5. P6 74 i.2z t/= 7./il,r D, Mt , ;! 0,55 .)/'= 7 , 5 T f //, F'•4 N f= 1 /, 9,,,', ), 3� `' /. � �35 l5. 4/t'f.3,/ c / , 11, 73t/� �. 4 �� ly 38c? 4fiday fro 9 3 0 y Nl'4 i1 OxY Occidental Chemical Corporation ::ERTIFIEO MAIL P 404 843 089 RETURN RECEIPT REQUESTED _ranu•ary 28, 1991 Mr. Donald Safrit, P. E. Permits and Engineering Unit Division of Environmental Management 512 North Salisbury Street Archdale Building, Room 925 Raleigh, North Carolina 27611 :i Subject: NPDES Permit No. NC0003875 Renewal Application Dear Mr. Safrit: Please find enclosed three copies of the completed Standard Form C application for the renewal of this facility's NPDES permit ,including the required priority pollutant analyses. A copy of the letter documenting the signatory authority of Gene F. Renzaglia, the current Plant Manager, is also included. The permit expires on 7/3 1/91 , therefore this submittal shall comply with the 130 day application deadline. The schematic of water flow included with the application describes a request for a flow limit increase from outfall 001. The diagram compares values from the 1985 renewal application (in parentheses) to the proposed values. The need for such an increase is based primarily on the fact that the wastewater treatment plant is handling a large volume of remediation well water and process area stormwater at this time. This has been successfully accomplished while remaining inside permit limits due to the fact that plant production has not approached its maximum. The plant was originally permitted for a maximum production rate of 390 tons/day sodium bi chromat e and process wastewater discharge of 747,000 gallons per day. To be able to operate at the maximum rate, perform remediation activities, and treat process area stormwater, the flow from outfall 001 would be 1 . 04 MGD. The existing permit contains rnass limits on the monitored parameters. No increases for these limits are requested. QyChem® Electrochemicals & Specialty Products 4,, Off State Road 1002, P.O. Box 368, Castle Hayne, North Carolina 28429 919/675-7200 a= y Our e. w-+ 1, P p" •�r�TC r .:�"r.rnlsrr., It was discovered through discussions with Mr. Trevor` Clements, technical Support Branch Chief, that the most. recent 7Q10 flow value for the Northeast Cape Fear River near tne Occidental Chemical 'Corporation's Caste Hayne plant is 27 cfs at the Highway 117 crossing. It is respectfully requested that the permit requirements imposed be based on the more accurate 7Q10 flow instead of the currently used value of 15 cfs, The facility is currently performing the North Carolina Ceriodaphnia Chronic 8ioa_sy procedure on the plant effluent, outfall 001, in accordance with the requirements set forth in a letter from Mr. Charles teak i l d , then Chief, Water Quality Section, to Mr. John O'Janpa, occidental Chemical, dated 4/18/88. The facility proposes to continue this quarterly testing and requests that the more accurate ?Q1O flow be used for setting the target effluent dilution. In addition, it is proposed that the actual recorded flow of the discharge be used for target effluent dilution ca l cul at i on' i nstead of the permitted maximum flowrate. This would result in a target effluent dilution that would vary depending on the discharge flowrate and would more accurately simulate the true effect of the effluent on the receiving stream. A narrative description of the sludge management plan for the sludge generated from waste treatment activities is included. Please find enclosed a check for $400 for the permit application processing fee. If there are questions or a need for additional information regarding these submittals, please contact Ms. Marion Davidson or rir. Riley West at telephone number (919) 675-7200. Sincerely, 'ffenz:3q11 Plant Manager cc: Wilmington Regional Office, Permits and Engineering Unit UNFRLn... INTAKE '/OLoML % E'.r°) COO lOt Yam!: 1w, Potab 1 _ I Pr'oc as 1 / 3 000 1 1.61 1 0.500 .. 000 0,813 4,00n Primary Recovery 16000 1 .0 /4 0.500 1.000 0.015 40,000 Sec, Recovery :;'):.:On 2.168 0.500 12,000 0.260 10.000 Low Aqu , Recovery 114700 1.698 6.000 125.000 9.6 -2 33.000 River 1154000 77.450 0.500 35.000 97.101 3.000 TOTAL 1490000 37.818 FREAIED 1NIAI« 0.00u :.00 i i n':E Water 200000 14,892 3.000. 243.000 36.188 12.000 lz.ol 11 I feed th(1000 1 1 . 169 3,000 63,000 7 .036 2,000 r•.c)c' _ 9 000 12.971 '3 . 500 .. 000 5,108 1 .000 pot tbL:ar wash 13 000 0.963 500 000 0.068 1.000 TOTAL 1343000 +8. 399i 5 Amount of 1i i ak Water tn. t i Ir=•"a•I =` 90.13422 % ' � Tcr!�� Sp.Cond TotSnCmn U.08B.000 hU.428 U.o�O �41/.000 25.854 8.217 1S40.000 33.384 �.�48 146';.000 112.//8 1l.3.00U 1l0.75� 5.875 338.28S U.O0U 1./87 O.22] O./3U U.U�O 2.74g�13 ��tMat TotSe�Met 0.Ubu 0.006 0.051) ' O.001 U.D5O ' 0.001 0.300 0.023 0.05c; 0.039 0.O89 u.UOO 172.897 U.U5U 29.59H U.UbU 334^2O7 0.0150 4^182 11)'135U 54O.bM3U A|um' 0.U0b 28.]UU 0.28(.: O.f5uO 0.2U0 TocA|um. U.UU1 0.J04 :'!.OU8 0.049 O'2U1 U.5U1 Chrmne O.005 328,000 'I .5 0U 23.900 �.000 U.3�U O.O2U U.D0b . a Lam•: 1i= mi 4ke) : c tr4i c k 1! 7 Ic i rIt f i n 0. _ _? !.UU:) ';,001 0.020 0.002 :t .. UAW.; 0.000 0,1(30 0. 0U:' 0,:. ' f 0.005 u..000 0.040 0,001 i .' -u.00!1, 0.O00 0,010 n.OU) 0.!•;4- 0.005 0.004 0.003 0.002 5.C_7 0.005 n_008 0.1'-.: U 0,000 0.00u '.:.0. -_ :'.010 U.'J0•i 5,100 0.75 J O.:._ _ •LOOS 0.001 u.010 0.001 0.i.•I u.00t, 0.004 0:003 U1002 0 . e:-.:t 0.005 0.000 0.003 0,000 is 19/1. 1 0.0 5 44 - 0.7624.c.79 Page 1 Webb Technical REPORT Received: 11/16/90 12/28/90 13:00:03 REPORT OCCIDENTAL CHEMICAL TO POST OFFICE BOX 368 ATTEN CLIENT COMPANY FACILITY CASTLE HAYNE, NC 28429 MARION DAVIDSON/JOHN O'JANDA OCCIDE SAMPLES 3 OCCIDENTAL CHEMICAL CASTLE HAYNE, NC WORK ID WASTEWATER ANALYSIS TAKEN TRANS PICK-UP, C. TENNANT TYPE WASTEWATER P.O. # INVOICE under separate cover $AMPLE IDENTIFICATION 0 14W COMP 11/16 02 WW GRAB 11/16 03 WW COMP 11/12 PREPARED Webb Technical Group, Inc. Work Order # 90-11-552 BY 4320 Delta Lake Drive Raleigh, NC 27612 CERTIFIED BY ATTEN Client Services PHONE (919)787-9171 CONTACT R HOHMANN We are pleased to provide this certified report of analysis. Samples will be retained for 30 days after report is issued. Feel free to telephone if further explanation is required. Refer to the Work Order # in all correspondence. *SULFIDE ANALYZED OUT OF HOLDING TIME. 8270AW 8270BW AG AL AS B BA BE CD CN_TW CO CR CU DIOXIN E8240W FE HG AA MG MN MO NI TEST GC/MS SEMIVOL. GC/MS SEMIVOL. SILVER ALUMINUM CODES and NAMES ACID EX.-H20 BASE/NEU-H20 ARSENIC BORON BARIUM. . BERYLLIUM CADMIUM CYANIDE, TOTAL - WATER COBALT. CHROMIUM, TOTAL COI.'I.'I':R DIOXIN SCREEN GC/MS VOL. ORGANICS -WATER IRON MERCURY BY COLD VAPOR MAGNESIUM MANGANESE MOLYBDENUM NICKEL used on this workorder O_G W OIL AND GREASE - WATER PB_AA LEAD BY AA PHEN_W PHENOLIC CMPDS, RAD OC RADIOLOGICAL SB ANTIMONY DIST . -H2 0� SE SELENIUM SN AA TIN BY AA SULFID SULFIDE TL_AA THALLIUM BY AA ZN ZINC Page 2 Webb Technical REPORT Received: 11/16/90 Results by Sample Work Order # 90-11-552 SAMPLE ID WW COMP 11/16 SAMPLE # 01 FRACTIONS: A,B Date & Time Collected 11/16/90 09:00:00 Category 8270AW SEE 8270BW SEE AG <0.01 AL 0.61 AS <60 B 0.016 ATTACHED ATTACHED MG/L MG/L UG/L MG/L BA <0.005 BE <0.005 CD <0.005 CO 0.011 CR 0.06 CU <0.01 MG/L MG/L MG/L MG/L MG/L MG/L DIOXIN SEE FE 0.330 HG AA 0.81 MG 18.0 MN 0.044 MO 0.03 ATTACHED' MG/L — UG/L MG/L MG/L MG/L NI <0.02 PBAA_ <0.05 SB <3.0 SE <12 SN AA <0.05 TL AA 1.5 MG/L MG/L UG/L UG/L — — MG/L MG/L ZN 0.01 MG/ L SAMPLE ID WW GRAB 11/16 SAMPLE # 02 FRACTIONS: A,B,C,D Date & Time Collected 11/16/90 Category CNTW <0.005 E8240W. SEE O G W <5.0 PHEN W <0.050 MG/L ATTACHED MG/L MG/L SAMPLE ID WW COMP 11/12 SAMPLE # 03 FRACTIONS: A,B Date & Time Collected 11/12/90 Category RAD_OC <0.5 SULFID <1.0* pCi/L MG/L IEA LABORATORY RESULTS IEA Project #: 1114-001S (Addendum) Client Name: Occidental Chemical Sample # Client ID Parameter Results Date Analyzed 1 001 Comp Total Kjeldahl Nitrogen 2.5 mg/L 11/27/90 1 001 Comp Nitrate/Nitrite 0.76 mg/L 11/20/90 1 001 Comp Gross Alpha 0 +/- 105 pCi/L 12/18/90 1 001 Comp Gross Beta 0.0 +/- 72.7 pCi/L 12/18/90 IEA Sample Number: Sample Identification: Date Extracted: Date Analyzed: Number Compound GC/MS ACID EXTRACTABLES EPA 625 COMPOUND LIST 1114-001(0) -1 001 Comp 11/21/90 12/06/90 1 4-Chloro-3-methylphenol 2 2-Chlorophenol 3 2,4-Dichlorophenol 4 2,4-Dimethylphenol 5 2,4-Dinitrophenol 6 2-Methyl-4,6-dinitrophenol 7 2-Nitrophenol 8 4-Nitrophenol 9 Pentachlorophenol 10 Phenol 11 2,4,6-Trichlorophenol Comments: By: Mace Water Quantitation Limit (ug/L) BQL = Below Quantitation Limit FORM 625A Rev. 071390 10 10 10 10 50 50 10 50 50 10 10 Results Concentration (ug/L) BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 4 .911111r GC/MS BASE/NEUTRAL EXTRACTABLES EPA 625 COMPOUND LIST IEA Sample Number: Sample Identification: Date Extracted: Date Analyzed: Number Compound 1114-001(0)-1 001 Comp 11/21/90 12/06/90 38 Nitrobenzene 39 N-Nitroso-di-n-propylamine 40 N-Nitrosodiphenylamine 41 Phenanthrene 42 Pyrene 43 1,2,4-Trichlorobenzene 44 Benzidine 45 N-Nitrosodimethylamine 1,2 Diphenylhydrazine Comments: BQL = Below Quantitation Limit FORM 625E (2) Rev. 071390 By: Mace Water Quantitation Limit (ug/L) 10 10 10 10 10 10 50 10 10 Results Concentration (ug/L) BQL BQL BQL BQL BQL BQL BQL BQL BQL GC/MS BASE/NEUTRAL EXTRACTABLES EPA 625 COMPOUND LIST IEA Sample Number: 1114-001(0)-1 Sample Identification: 001 Comp Date Extracted: 11/21/90 Date Analyzed: 12/06/90 By: Mace Water Quantitation Results Limit Concentration Number Compound (ug/L) (ug/L) 1 Acenaphthene 10 BQL 2 Acenaphthylene 10 BQL 3 Anthracene 10 BQL 4 Benzo(a)anthracene 10 BQL 5 Benzo(a)pyrene 10 BQL 6 Benzo(b)fluoranthene 10 BQL 7 Benzo(g,h,i)perylene 10 BQL 8 Benzo(k)fluoranthene 10 BQL 9 bis(2-Chloroethoxy)methane 10 BQL 10 bis(2-Chloroethyl)ether 10 BQL 11 bis(2-Chloroisopropyl)ether 10 BQL 12 bis(2-Ethylhexyl)phthalate . 10 33 13 4-Bromophenyl phenyl ether 10 BQL 14 Benzyl butyl phthalate 10 BQL 15 2-Chloronaphthalene 10 BQL 16 4-Chlorophenyl phenyl ether 10 BQL 17 Chrysene 10 BQL 18 Dibenzo(a,h)anthracene 10 BQL 19 1,2-Dichlorobenzene 10 BQL 20 1,3-Dichlorobenzene 10 BQL 21 l,4-Dichlorobenzene 10 BQL 22 3,3'-Dichlorobenzidine 10 BQL 23 Diethyl phthalate 10 BQL 24 Dimethyl phthalate 10 BQL 25 Di-n-butylphthalate 10 BQL 26 2,4-Dinitrotoluene 10 BQL 27 2,6-Dinitrotoluene 10 BQL 28 Di-n-octylphthalate 10 BQL 29 Fluoranthene 10 BQL 30 Fluorene 10 BQL 31 Hexachlorobenzene 10 BQL 32 Hexachlorobutadiene 10 BQL 33 Hexachlorocyclopentadiene 10 BQL 34 Hexachloroethane 10 BQL 35 Indeno(1,2,3-cd)pyrene 10 BQL 36 Isophorone 10 BQL 37 Naphthalene 10 BQL FORM 625B (1) Rev. 050589 • •_far—r SrT GC/MS PURGEABLES EPA 624 COMPOUND LIST IEA Sample Number: 1114-001(0)-2 Sample Identification: 001 Grab Date Analyzed: 11/27/90 By: Stephenson Quantitation Results Limit Concentration Number Compound (ug/L) (ug/L) 1 Benzene 5 BQL 2 Bromodichloromethane 5 BQL 3 Bromoform 5 BQL 4 Bromomethane 10 BQL 5 Carbon tetrachloride 5 BQL 6 Chlorobenzene 5 BQL 7 Chloroethane 10 BQL 8 2-Chloroethylvinyl ether 5 BQL 9 Chloroform 5 7 10 Chloromethane 10 BQL 11 Dibromochloromethane 5 BQL 12 1,2-Dichlorobenzene 5 BQL 13 1,3-Dichlorobenzene 5 BQL 14 1,4-Dichlorobenzene 5 BQL 15 1,1-Dichloroethane 5 BQL 16 1,2-Dichloroethane 5 BQL 17 l,l-Dichloroethene 5 BQL 18 1,2-Dichloroethene (total) 5 BQL 19 1,2-Dichloropropane 5 BQL 20 cis-1,3-Dichloropropene 5 BQL 21 trans-1,3-Dichloropropene 5 BQL 22 Ethylbenzene 5 BQL 23 Methylene chloride 5 BQL 24 1,1,2,2-Tetrachloroethane 5 BQL 25 Tetrachloroethene 5 BQL 26 Toluene 5 BQL 27 1,1,1-Trichloroethane 5 BQL 28 1,1,2-Trichloroethane 5 BQL 29 Trichloroethene 5 BQL 30 Trichlorofluoromethane 5 BQL 31 Vinyl Chloride 10 BQL Comments: BQL - Below Quantitation Limit FORM 624 Rev. 071390 ACROLEIN / ACRYLONITRILE EPA 603 COMPOUND LIST GC IEA Sample Number: 1114-001(0)-2 Sample Identification: 001 Grab Date Analyzed: 11/28/90 By: Averill Quantitation Results Limit Concentration Number Compound (ug/L) (ug/L) 1 Acrolein 5.0 BQL 2 Acrylonitrile 5.0 BQL Comments: BQL = Below Quantitation Limit FORM 603 Rev. 071390 IEA LABORATORY RESULTS IEA Project #: 1114-001(0) Client Name: Occidental Chemical Sample # Client ID Parameter Results Date Analyzed 1 001 Composite Total Phenols <0.005 mg/L 12/06/90 1 001 Composite Sulfide <1.0 mg/L 11/20/90 1 001 Composite Oil & Grease <5.0 mg/L 12/05/90 IEA LABORATORY RESULTS IEA Project #: 1114-0015 Client Name: Occidental Chemical Sample # Client ID Parameter Results Date Analyzed 1 001 Comp 1 001 Comp Total Kjeldahl Nitrogen Nitrate/Nitrite 2.5 mg/L 11/27/90 0.76 mg/L 11/20/90 A IEA LABORATORY RESULTS IEA Project #: 1114-001 Client Name: Occidental Chemical Sample # Client ID Parameter Results Date Analyzed Priority Pollutants: 1 #001 Comp Antimony <0.20 mg/L 12/12/90 1 #001 Comp Arsenic <0.005 mg/L 12/03/90 1 #001 Comp Beryllium <0.01 mg/L 12/04/90 1 #001 Comp Cadmium <0.01 mg/L 12/04/90 1 #001 Comp Chromium 0.03 mg/L 12/04/90 1 #001 Comp Copper <0.02 mg/L 12/04/90 1 #001 Comp Lead <0.005 mg/L 12/06/90 1 #001 Comp Mercury <0.0005 mg/L 12/06/90 1 #001 Comp Nickel <0.03 mg/L 12/04/90 1 #001 Comp Selenium <0.005 mg/L 12/04/90 1 #001 Comp Silver <0.05 mg/L 12/04/90 1 #001 Comp Thallium <0.005 mg/L 12/05/90 #001 Comp Zinc <0.02 mg/L 12/04/90 TOTAL METALS: 1 #001 Comp Aluminum 0.41 mg/L 12/04/90 1 #001 Comp Barium <0.10 mg/L 12/04/90 1 #001 Comp Cobalt <0.05 mg/L 12/05/90 1 #001 Comp Lead <0.005 mg/L 12/06/90 1 #001 Comp Magnesium 46 mg/L 12/04/90 1 #001 Comp Manganese 0.03 mg/L 12/04/90 1 #001 Comp Molybdenum <1.0 mg/L 12/10/90 1 #001 Comp Tin <1.0 mg/L 12/10/90 1 #001 Comp Titanium <1.0 mg/L 12/10/90 1 #001 Comp Boron <1.0 mg/L 12/10/90 1 #001 Comp Ammonia-N <0.1 mg/L 11/19/90 1 #001 Comp Bromide 23 mg/L 12/05/90 1 #001 Comp Chloride 5,000 mg/L 11/21/90 1 #001 Comp Cyanide <0.01 mg/L 11/21/90 1 #001 Comp Color- 10 mg/L 12/06/90 1 #001 Comp Fluoride <0.1 mg/L 11/19/90 1 #001 Comp Methylene Blue Active Substances <0.06 mg/L 11/16/90 1 #001 Comp T-Phosphate as P <0.02 mg/L 11/26/90 1 #001 Comp Sulfite <1.0 mg/L 11/19/90 1 #001 comp .Sulfate 900 mg/L 11/20/90 Oxford Laboratories, Inc. OCCIDENTAL CHi:;i:_ P.O. 30x 368 CASTLE '-AYi E, NC 1 423 ATTENTION: iMARVIN DAVIDSON Analytical and Consulting Chemists 1316 South Fifth Street 1 o l - Wilmington, N.C. 28401 (919) 763-9793 LAGS _ OF 3 SAMPLE DESCRIPTION: 10 SSANPLE3 FOR NPDES `2. PRIMARY RECOVERY SYSTEM I. ::EC.ONDARY RECOVERY SYSTEM AREA RECOVERY SYSTEM 4. _..EATED COOLING WATER 5. _TREATED RIVER WATER UNTREATED POTABLE/PROCESS RESULTS SODS, as 02, PPM C.O.D., as 02, PPM Total Suspended Solids, PPM Conductivity, umohsicm Settleable Solids, m1/1 Ammonia Nitrogen, as NH3-N, PPM Aluminum, as Al, PPM Chromium, as Cr, PPM Nickel, as Ni, PPM Zinc, as Zn, PPM P.O. $F C 8 2 0 5 6 4 5 6 :1 6 3 <1. <_ 7 12 - 3 2 _3 35 40 10 i2 .3 4 2417 1540 2465 1161 _43 436 <0.1 <0.1 0.3 <0.1 <0.1 <0.1 0.47 0.47 0.4S <0 . 1 <0 . 1 0.47 23. .260 :0 .810 .16.0 <. 10 328 12.5 23.; 1.00 <.313 .013 . 040 <.310 .._v .010 .010 .0iC . 180 .040 .010 5.10 <.005 .020 440 . Oxford Laboratories, Inc. OCCIDENTAL CHEMICAL CO. P.O. BOX 368 CASTLE HAYNE, NC 28429 ATTENTION: NARVIN DAVIDSON Analytical and Consulting Chemists DATE RECEIVED 1 2- L 7- 9 0 1316 South Fifth Street DATE REPORTED 01-10-91 Wilmington, N.C. 28401 1i 0 W7 0 0 (919) 763-9793 PACE 2 OF SAMPLE DESCRIPTION: 10 SAMPLES FOR NPDES 7. TREATEAD POTABLE 8. TREATED PROCESS 9. BOILER FEED 10. 001 RESULTS 3 P.O. # CB2086 7 8 9 10 n5, as 02, PPM <1 <1 3 1 C.O.D., as 02, PPM 7 7 63 110 Total Suspended Solids, PPM 1 1 2 6 Conductivity, umohs/cm 432 458 265 16297 Settleable Solids, ml/1 <0.1 <0.1 <0.1 <0.1 Ammonia Nitrogen, as NH3-N, PPM <0.1 <0.1 1.50 X Aluminum, as Al, PPM .010 <.010 .320 X Chromium, as Cr, ?PH <.010 .020 .300 X Nickel, as Ni, PPH <.010 <.010 <.010 X Zinc, as Zn, PPM <.005 <.005 .010 X Calcium, as Ca, PPM X X X 1600 Iron, as Fe, PPM X X X .230 Potassium, as K, PPM X X X 5.20 ' o Oxford Laboratories, Inc. 3CCIDENTAL CHEMICAL C O . P.O. BOX 368 CASTLE HAYNE, NC 28429 ATTENTION: MARVIN DAVIDSON Analytical and Consulting Chemists DATE RECEIVED j:. 27-yip 1316 South Fifth Street DATE REPORTED : 1-10 - 1 Wilmington, N.C. 28401 3,0117003 (919) 763-9793 PAGE SAMPLE DESCRIPTION: 10 SAMPLES FOR NPDES 7. TREATEAD POTABLE 8. TREATED PROCESS 9. BOILER FEED 10. 001 ..t di um, as Na, PPM Fecal Coliform, c/100m1 RESULTS 3 P.O. # CB2086 7 8 9 10 X X X 2150 X X X <5 ROGER C. OXF O 'D, CHEMIST WEBB TECHNICAL GROUI? INC. • c 1 1 AC I':APH. t Y LENS Ai:i_INE 4 - C H LOR._ ANI - _ NE 2-NITRCANIL.:NE 1"2-NITROAILIiNE ANTHACENE SEl ZIDI:. BENZO (A) AN' HRACENE 8E14 0 (A! PYRENE BENZO (_) FLUORANTHENE F"r1NZi_? (GHI) PERYLENE •¢ ZO (1-1 FLUORANTHENE BENZOIC ACID BENZYL ALCOHOL BIS (2-CHLOROETHOXY) METHANE BIS ;2-CLOROISOPROPYL) ETHER BIS (Z--LGROETHYL) ETHER BIE (2-ET IYLHEXY.L) PHTHALATE 4-i=. 0. 'ENYL PHENYL ETHER BUTYL B EN Z Y L PHTHALATE -C_:_.G APHTHAL' ENE 4--CHLOR _HENYL PHENYL ETHER C iR SE N DISZO :=.H) ANTI-iRACENE 1 ,-DIC._- ENZENE BQL= i E-__G'i (. Aid" ITA.TIoN LIMIT. LOG NO. 90---11-552-01A ANALYST SIGNATURE: Ts,:IFIED BY ANALYSIS REPORT EPA METNOD 8270 NEUTRAL Ei .:R CTABLE5 •_,A:;PLE .=.ECEIVEi:: F: .,;M : WEBB DATE: 11/16/90 Q A I TAT I ON CO :CENTRA'C t(...,N T.' i; , L 0(.7 L 10 10 70 ; -0 5u 50 50 10 50 10 10 10 10 10 5 n 20 10 10 10 10 10 10 10 10 10 10 0 10 L 20 DATE d- —/9r—c DATE SQL SQL SQL QL SQL y Q L SQL L ._ ' T SQL SO L SQL SQL SQL SQL SQL SQL SQL SQL SQL SQL SQL SQL S �L S Q T SQL SQL _.Q L EQL SQL S Q L 4320 Delta Lake Drive • Raleigh, North Carolina 27612 • 919/787-3061 • 800/548-7687 • Fax 919/781-5283 W E BB TECHNICAL GROUP | l C. C223§Y: CC«:2=w2z2 E§gs2222 CAST2K HAY NE, NC SAM2£E OE= wzZ:3WATER «1«2 11/16 COEPOUNDz <IS Eta MEIHOE 8271 SASE / NEUTRAL EXTRACTAEIES QUANTITAT ION LIMIT UG/ L DIETHYL 2 :m2§TE 10 DIMETHYL E3:<«L TE 10 DI-N-BUTYL x22wALATE 10 2,4-DIN ITRC»<SUENE 10 2,6-DI NITRy<:<JNE 10 DI-N-OCT YEEE2§ILATE 10 'LJRAy2HEE' 10 E»E2»EmE 10 2332 m:SC&CZE23£§E 10 HEXACHL . BL AEIENE 10 HExAcH262GC\_ENTAD IENE 10 HEXACHLOROE.2ANE 10 1,2,a -CD ) PYRENE 10 2.22«>\CZE 10 22z2<22tEw3 10 .-3223yE NAPHTHALENE 10 E «2x»c£SZENE 10 N-E:2Ece3-DI-5-2&9E>222I 10 14-wel&6S0Di[2£EY2AS:2E IQ PHENANTHRENE 10 PYRE -NE to 1,2,g-TRICHLOROBENZENE 10 1,2-DI PHENYLf YDRAZINE 50 N-NI TROSODIMETHYLAMINE 10 DIOXIN SCREEN 2,3,7,8-TETR CHLORODIBENZG-D-DIOXIN NEGATIVE : 11r &w:EI2ED FROM: WEBS DATE: 11/16/90 SQL= Ds£?Q ?2\NIITATIC2 e:xIT LOG EO. 90-11-552-01A ANALYST SIGN22URE CERTIFIED BY RESULTS CONCENTRATION UG/ L SQL BQL SQL BQL BQL SQL BQL SQL SQL SQL SQL BQL BQL S05 BQL BCE EQL BQL EQS D9a 1QL BQL DATE /2 2- � DATE /2 ?-7D \43ADllLake Drive ® Raleigh, North Caroln 27612*91?A2361®8058Jm7•Fax 91+7132a WEBB TECHNICAL GROUP, INC. 22iE23: oC =-1 22EM CAE J2«22£ NAYNE. »Z :LE 0E; Q23TEWATEE CO:P 1i/16/90 :z222C-s-KETHYLPHELCL :- 2:62EODH m;22 ?-<2EZGa e-c2E331 z,e-DICBy>2G2xEW5G 2,4-DIMEIEiay2EWLL 2,G-DINTZR: :NOL 2-METHYL-4,6-DINZEROPHENOL a-§ZI&O2H3&62 §ZTECP 2. ya&2&CH' +arz=»a§ 252z3t ,6-2&ZCB2.&6zHExGz 2,i,s-2&ICH£CRO»HSysa ANAL 73:3 REPORT EPA xETHOD 8270 ACID EZTRACTABLES SAMPLE RECEIVED FROM: WEBB DATE: 1 /1G29G QUA NT1TATION RESULTS LIMIT CONCENTRATION UG/ L UG/ L 20 10 10 10 10 10 50 50 :O 50 50 !0 10 10 NO EXTRANEOUS PEAKS WERE FOUND IN THE AJ±D EXTRACT. SQLBELOW QUANTITATION LIMIT LOG NO, 90-11-552-01A ANALYST SIGNATURE � DATE /-2 -7 C L) � CERTIFIED BY �^ Z z'DATE �2-/ ��L-' BQL BQL 30L BQL BQL BQL BQL BQL E)L BQL BQL BQL BQL BQL 4320 Delta Lake Drive •Raleigh, North Carolina 27612 -919/787a0 1•8 0/548-7687 • Fax 919/781-5283 WEBB TECHNICAL GROUP INC. ANALYSIS RE,_-'_L T [ 1.0 LIMIT UG/L . i'i : _'ATE. 1. 10/•=tl RESULTS C' dCFNTRATIC+N Uc,/L SE -ENE SQL E;t{=)L''.0 i L[1t<OMET;:ANE _ SQL B RO —1F0P4 5 SOL L.RO _-``-;=_.'THANE 10 SQL CA -=— N "_'ETRA_CHLC=.:DE 5 BQL CHLCOBENZENE 5 BQL CHL=' ROETHANE 10 SQL 2—CHLOROSTHYLVINIL ETHER 5 SQL t_:HL' _:ORM 5 SQL C'HLC_.OMETHANE 10 SQL DIE=. �XOCHLOROM - :TEE 5 SQL 1 , 2—ems CHLGROBL-NZ_NE 5 SQL , DICHL_:',OE Iti...NE 5 SQL 1 , 4--DILiiLL-:ENZ::NE, 5 SQL i- DICHL 5 SQL _ , L.—D1CHLGOETHA_.L 5 SQL 1 , 1--:: HLUETHE 5 :=QL CI:.—_ , —_ _L-;.LURi:.-it.Pd_. a BQL iMt._. 3— , 2— ICHL_.... 'T -i:._NE EyL , 2.—.. ? CHLOr;UPRu_ 5 SQL C. 3—_ , J—U.it..-,'r_:l - _. _ G: 5 SQL TRt>_:...— ! , 3—L•ICHL:_ _. _ . :.-JE 5 1W,2 ETH-_ — SENZENE SQL METH ' LENS CHLOR1:E 5 SQL 1 , 1 , i , 2—TE'i RACHLCROETHANE 5 SQL TETRACHLOROETHENE 5 BQL TOLUENE 5 SQL •1 , 1 , _—TRICHLOiiOEThANE _ SQL 1 , _ , _—TRICHLOciOc -AI E ::7, SQL TR ICH LORJETHENE 5 BQL ':CriI;_LOROFLUORO := HANE.' 10 SQL 7 I N;Y L CHLORIDE 10 SQL NO EX_RANEO►_:S PEAKS WERE: FOUND IN THE VOLATILE PORTION. BQL= BELOW QUANTTATION LIMIT LOG NO. 90-11-552-02A ANALYST SIGNATURE TIFIED BY DATE DATE -// 4320 Delta Lake Drive • Raleigh, North Carolina 27612 • 919/787-3061 • 800/548.7687 • Fax 919/781-5283 • i r 1 Oa. i SLUDGE -MANAGEMENT PLAN FOR OCCIDENTAL CHEMICAL Outfall 001: The Occidental Chemical Company ("Oxychem") Castle Mayne plant produces sodium bichromate and chromic acid from chrome ore, soda ash and sulfuric acid. As a result of this production, a wastewater is produced which undergoes extensive treatment prior to discharge to the Northeast Cape Fear River as described in this permit application. During this wastewater treatment, a non -hazardous residue is produced which is currently managed in an adjacent limestone quarry. This activity in conducted in accordance with North Carolina DEHNR, Division of Environmental Management Permit No. WQ0001492, which expires January 4, 1993. clutfa l l 002: Sanitary wastewater from toilets, sinks, and showers flows by .gravity to a lift station which pumps to an equalization tank, The flow from the equalization tank is split and Leeds two parallel extended aeration package plants, each rated at 10,000 gpd . Over time, the amount of activated sludge builds, Excess sludge is wasted to aerobic digesters . When the digested sludge has accumulated to the point where settling times are excessive, the digested sludge is removed for land application, C & L Utilities of Leland, N.C. has agreed to submit an application to amend their existing Lanp Application Permit No. 14549 to include the aerobically digested sanitary sludge from: Occidental Chemical. s. "' >`i 1991 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: FACT SHEET FOR WASTELOAD ALLOCATION Request # 6340 Occidental Chemical Corporation - 001 pipe for process wastewater NC0003875 Industrial - 100% Existing Modification i inave65e i n - )01,3 renc&aa Northeast Cape Fear River B-Swamp 030623 New Hanover Wilmington Barona 7/2/91 J27NE Stream Characteristic: USGS # Date: Drainage Area (mi2): Summer 7Q10 (cfs): Winter 7Q10 (cfs): Average Flow (cfs): 30Q2 (cfs): IWC (%): �..�� Gfica estimated from 02.1086.1790 1989 1426 25 90 1800 150 6.1 Wasteload Allocation Summary (approach taken, correspondence with region, EPA, etc.) This is one of three outfall pipes for Occidental Chemical Corporation (formerly Diamond Shamrock). The 001 pipe is for process wastewater. Occidental requested a flow increase from 0.747 MGD to 1.04 MGD. This additional flow would be from the addition of process area stormwater and groundwater remediation. A more update S7Q10 was used to calculate the IWC as requested by the facility. The new flow was 25 cfs (not 27 as mentioned in a letter from Occidental) and decreased the IWC by one percent. The toxicity test should be changed accordingly. The additional flow from the groundwater remediation project puts more hexavalent chromium into the wastestream, but this will not change the BPJ limits given in the previous permit. In fact, the ermit limits remain the same for this facility. } 1 u evu` z,' c �� Gt,�q - Mot 14.7 ik/d . Special Schedule Requirements and additional comments from Reviewers: Recommended by: Reviewed by Instream Assessment: Regional Supervisor: Permits & Engineering: RETURN TO TECHNICAL SERVICES BY: a/1/1-0&u.e-k-?"-- Date: 7//// Date: Date: 7-3c -R/ Date: {'Mgr AUG 171991LP 2 Type of Toxicity Test: Existing Limit: Recommended Limit: Monitoring Schedule: TOXICS/METALS/CONVENTIONAL PARAMETERS Chronic ceriodaphnia - Pass/Fail 7% 6% Feb, May, Aug, and Nov. Existing Limits 6) -f 4G4.3 U BOD5 (mg/1): TSS (lbs/day): pH (SU): Hexavalent Chromiwn (lbs/day): Total Chromium (lbs/day): Nickel (Ibs/day): Zinc (lbs/day): Temperature (•C): Total Nitrogen (mg/1): Total Phosphorus (mg/1): Recommended Limits .6747 mgcl Cw1%vL4-G-F.c�;J Daily Avg. monitor 171.6 6.0 - 9.0 0.27 1.72 0.94 2.57 monitor monitor monitor Daily Max. 343.2 0.55 3.44 1.87 5.15 Wa6,c - 1.4t,J = L. 04 y f C nlbrl f . BOD5 (mg/1): TSS (lbs/day): pH (SU): Hexavalent Chromium (lbs/day): Total Chromium (Ibs/day): Nickel (lbs/day): Zinc (lbs/day): Temperature (•C): Total Nitrogen (mg/I): Total Phosphorus (mg/1): Limits Changes Due To: Change in 7Q10 data x Toxicity test Change in stream classification Daily Avg. monitor 171.6 (o'3 (nng 'I) 6.0 - 9.0 0.27 1.72 0.94 2.57 monitor monitor monitor Daily Max. L L 13PJ 343.2 0.55 3.44 C L 1.87 5.15 Relocation of discharge Change in wasteflow New pretreatment information Other (onsite toxicity study, interaction, etc.) Parameter(s) Affected 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 x No parameters are water quality limited, but this discharge may affect future allocations. 3 MISCELLANEOUS INFORMATION & SPECIAL CONDITIONS Adequacy of Existing Treatment Has the facility demonstrated the ability to meet the proposed new limits with existing treatment facilities? Yes No If no, which parameters cannot be met? Would a "phasing in" of the new limits be appropriate? Yes No If yes, please provide a schedule (and basis for that schedule) with the regional office recommendations: If no, why not? Special Instructions or Conditions Wasteload sent to EPA? (Major) Y (Y or N) (If yes, then attach schematic, toxics spreadsheet, copy of model, or, if not modeled, then old assumptions that were made, and description of how it fits into basinwide plan) Additional Information attached? Y (Y or N) If yes, explain with attachments. 1 +-1 - t e d rr105 t ; e kuf Lt' (,9 n.v 5-0 ((And 5 cc_ vr) S Yr a..4-1 c, 10/S9 Facility Name 'Ceil/cM - Permit # /✓Ci0003F75- CHRONIC TOXICITY TESTING REQUIREMENT (QRTRLY) The effluent discharge shall at no time exhibit chronic toxicity in any two consecutive toxicity tests, 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 1p % (defined as treatment two in the North Carolina procedure document). The permit holder shall perform quarterly monitoring using this procedure to establish compliancewith the permit condition. The first test will pert ed after thirty days from issuance of this permit during the months of I- 41 / Ndt/. . Effluent sampling for this testing shall be performed at the NPDES ermttt 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 P.O. Box 27687 Raleigh, N.C. 27611 Test data shall be complete and accurate and include all supporting cherriical/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. / i'ernLtec /.0LL IWC% (o Basin & Sub -basin Receiving Stre .in County CpF - o Z3 P44 ---diAm - "' ?Ilifltrilllrll '"'Chronic Toxicity (Ceriodaphnia i ]'ri ��17,41,yf. 3 ,;edition - Acoe,mk (;felvityt-161.fra-- Awe- 7/0/ 00/ NA,71a57- Zit* icofie 66e- 306.52 eithth4/7C /0;1'4 OcC/c77( (itryyruK7‘ eitemica/ 474140C4Wet- 0?-2 /141'1461SP 6V2-e /17.6r rc�e.Sfed f�ivviicrraTc 0.717 4019 k /04 /li169 . his adihono kyti wtevr/aL fix. j4flYfl add/ .61zi p r ��. ewu" .� �ur�v►v✓af,tY cis'nwil Pew . tc cS/ Cad &€nit,i � ,`Id 6frv;e,nte(#1,4/- a $iwo �� ?5cf wr741,(! is-c 74 cdutekk Lziw 17d b/ tl'r ivr A4- 1/a.il md-E./ 005). 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Om, : /SOD Cfs 573,11) cfs waaio = go af> �i� NPDES WASTE LOAD ALLOCATION PERMIT NO.: NCOO O 38 7-5 FACILITY NAME• Ocer deaia l eh Pi C4 l reesi e /4' Facility Status: (circle one) Permit Status: (circle ono) Major ✓ _Mi no r Pipe No 0 0 Design Capacity (MGD)- Domestic (% of Flow): Industrial (% of Flow): CcAmsnts- Class - Sub -Basin - Reference USGS Quad:` I 2 7 %U E (please attach) County: N v� i�Co'1oU e)r- Regional Office: As Fa Mo Ra Wa WS (circle .se) RECEIVING STREAM: .A/ar'Keck L ("° e Fekr sln) Requested By: U 3—o6- P-1 Rtro c, Prepared By: //U' 6 i7Wd4/d/". C!'� Reviewed By:_ C4/7'`6 -8ob, /35 gk/g/ Date: 742/9/ Date• ate: Modeler �aG Date Rec. 1\7_A9( Drainage Area (mil) /� Z(o Avg. Streamflow (cfs)- ig° • 7Q10 (cfs) Winter 7Q10 (cfs) 67C 30Q2 (cfs) / b Toxicity Limits: IWC % (circle one) Acute / Chronic Instream Monitoring: Parameters A7/41 Upstream Location Downstream Location Effluent Characteristics Summer Winter BODE (mg/1) .10 • 0 NH3 N (mg/1) fy70n/h)y D.O. (mg/1) 5 0 TSS (mg/1) 3(i.0 F. Col. (/100m1) 00- 0 pH (SU) C, D ` %. D Comments- 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: FACT SHEET FOR WASTELOAD ALLOCATION Request # 6341 Occidental Chemical Corporation - 002 pipe for sanitary wastewater NC0003875 Domestic - 100% Existing Renewal Northeast Cape Fear River B-Swamp 030623 New Hanover Wilmington Barona 7/2/91 727NE Stream Characteristic: USGS # Date: Drainage Area (n i2): Summer 7Q10 (cfs): Winter 7Q10 (cfs): Average Flow (cfs): 30Q2 (cfs): IWC (%): estimated from 02.1086.1790 1989 1426 25 90 1800 150 6.1 Wasteload Allocation Summary i.o (approach taken, correspondence with region, EPA, etc.) This is one of three outfall pipes for Occidental Chemical Corporation (formerly Di riond Shamrock). The 002 pipe is for sanitary wastewater. No changes in the permit limits were deemed necessary. i . FcLa 1 i ? rYl aA,�- ru cL -1-2-) frfrtu_i L+ vLLc4 - -0 r Ckto ✓iAq VIA -I 441 Special Schedule Requirements and additional comments from Reviewers: fiAtt- w Recommended by: Reviewed by Instream Assessment: Regional Supervisor: Oyt Date: / / 7 Date: 7- 30 -9/ Existing Limits: Wasteflow (MGD): BOD5 (mg/1): NH3N (mg/1): DO (mg/1): TSS (mg/1): Fecal Co1. (/100 ml): pH (SU): Residual Chlorine (14/1): Oil & Grease (mg/1): TP (mg/1): TN (mg/1): Recommended Limits: Wasteflow (MGD): BOD5 (mg/1): NH3N (mg/1): DO (mg/1): TSS (mg/1): Fecal Co1. (/100 ml): pH (SU): Residual Chlorine (µg/1): Oil & Grease (mg/1): TP (mg/1): TN (mg/1): 2 CONVENTIONAL PARAMETERS Monthly Average 0.02 30.0 monitor 5.0 30.0 200.0 6.0 - 9.0 monitor Monthly Average WQ or EL 0.02 30.0 WQ monitor 5.0 30.0 200.0 6.0 - 9.0 monitor 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 Wasteload sent to EPA? (Major) N (Y or N) (If yes, then attach schematic, toxics spreadsheet, copy of model, or, if not modeled, then old assumptions that were made, and description of how it fits into basinwide plan) Additional Information attached? (Y or N) If yes, explain with attachments. NPDES WASTE LOAD ALLOCATION Date Rec. 1 PERMIT NO.: NCO() 3 S i G(PillIaI CNe •C4// (45-/`/ FACILITY NAME Facility Status: (circle one) Permit Status: (circle one) Major V Minor, 00 3 EXISDIG PROPOSED Pipe No• MODIFICATION UNPERWITED NEW Design Capacity (MGD)- Domestic (% of Flow): Industrial (X of Flow). Continents- rr'Co/Jr,irnev:c/ o. o1 �1G� f00 . RECEIVING STREAM: U T 0 r Ke``.57L 6410e Fek N Class: Sub -Basin- o 3 — - 013 Reference USGS Quad: 7 SE (please attach) County: New II grip Ue Regional Office: As Fa Mo Ra Wa (circI. see) Requested By:f 0.3-0 N V On�i Prepared By: Reviewed By: (1AA us)cAg-t___ 04Yd-tA/f6Y1Date: Date- Date. g i WS Drainage Area (mi2 ) Modeler Avg. Streamflow (cfs)• 7Q10 (cfs) - C Winter 7Q10 (cfs) 30Q2 (cfs) Toxicity Limits: IWC Instream Monitoring: Parameters Upstream Downstream % (circle one) Acute / Chronic i\f/ti Location Location Effluent Characteristics Summerihfirrh,,, -Winter— BODa (mg/1) ,1190-7/ NH3 N (mg/1) D.O. (mg/1) TSS (mg/1) F. Col. (/100m1) pH (SU) SEf(1 We.ci>lids(MO b dify (,Vru) 6. o - 9, o 0- I /17127 l'710. M6/g (41,1 /0 Mon, - Comments- PUS1 cE1) 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: FACT SHEET FOR WASTELOAD ALLOCATION Occidental Chemical Corporation NC0003875 Domestic - 100% Existing Renewal Northeast Cape Fear River B-Swamp 030623 New Hanover Wilmington Barona 7/2/91 J27NE Request # 6342 - 003 pipe for auto. rinse discharge HI:. 2 9 1991 v,",i,I;,;r n r: ;;orct Cffic9 Stream Characteristic: TIDAL USGS # Date: Drainage Area (mi2): I Summer 7Q10 (cfs): 0.0 / Clr CI i[-Ck) Winter 7Q10 (cfs): Average Flow (cfs): 30Q2 (cfs): IWC (%): Wasteload Allocation Summary (approach taken, correspondence with region, EPA, etc.) This is one of three outfall pipes for Occidental Chemical Corporation (formerly Diamond Shamrock). The 003 pipe is for wastewater originating from a car wash provided as a convenience to workers. No soaps or detergents are added to the water. No changes in the permit limits were necessary. Special Schedule Requirements and additional comments from Reviewers: LID Recommended by: 0,4z Reviewed by Instream Assessment: Gt it&-c," VW-0-y\ Regional Supervisor: Permits & Engineering: Ae,,/ RETURN TO TECI-HNICAL SERVICES BY: Date: c=. Date: 7///9 Date: 7,�� 7-30 —ef/ Date: yl L1 it f • 9 ' r ' • Existing Limits: 2 CONVENTIONAL PARAMETERS Monthly Average Wasteflow (MGD): 0.01 BOD5 (mg/1): monitor Settleable Solids (m1/1): 0.1 pH (SU): 6.0 - 9.0 Turbidity (NTU): monitor MBAS (mg/1): monitor Recommended Limits: Monthly Average WQ or EL Wasteflow (MGD): 0.01 BOD5 (mg/1): monitor Settleable Solids (ml/1): 0.1 pH (SU): 6.0 - 9.0 Turbidity (NTU): monitor MBAS (mg/1): monitor 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 Wasteload sent to EPA? (Major) N (Y or N) (If yes, then attach schematic, toxics spreadsheet, copy of model, or, if not modeled, then old assumptions that were made, and description of how it fits into basinwide plan) Additional Information attached? (Y or N) If yes, explain with attachments.