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HomeMy WebLinkAboutNC0035904_Wasteload Allocation_19931027NPDES DOCUMENT SCANNING COVER SHEET NC0035904 McCain Correctional Hospital WWTP NPDES Permit: Document Type: Permit Issuance Wasteload 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: October 27, 1993 This document is printed am reuse paper - ignore any content on the rre'erse side NPDES WASTE LOAD ALLOCATION PERMIT NO.: NC0035904 PERM1TIEE NAME: NC Department of Correction FACILITY NAME: McCain Hospital Facility Status: Existing Permit Status: Renewal Major Minor �1 Pipe No.: 001 Design Capacity: 0.200 MGD Domestic (% of Flow): Industrial (% of Flow): 0 % ✓� !o Coet..J4 Ozpi e . Comments: • A to C granted 9/20/91 for 0.200 MGD. • Listed as 0.100 on GK /IMS You may want to wait for FRO Staff Report STREAM INDEX: 14-2-16-(2) RECEIVING STREAM: an unnamed tributary to Mountain Creek Class: C Sub -Basin: 03-07-51 Reference USGS Quad: G21SE, Sanatorium (please attach) County: Hoke Regional Office: Fayetteville Regional Office Previous Exp. Date: 12/31/93 Treatment Plant Class: II Classification changes within three miles: C -> C-Sw @ Drowning Creek. ca. 5+ mi. Requested by: Prepared by: Reviewed by: f3oDu, `�— Jule Shanklin tieLf .go_. v.3 : fG Date: 6/4793- Date: I o « ¶ Date: I.3 Modeler Date Rec. # ,SAS <0/7/133 74p3 � r Drainage Area (mi2 ) 0. g Avg. Streamflow (cfs): 1.0 7Q10 (cfs) p. (5 Winter 7Q10 (cfs) o. (, 30Q2 (cfs) Toxicity Limits: IWC ( 7 % Acute/ Instream Monitoring: Parameters TAP, V.O., FECAL AL -I, con/DuCr1 viz Upstream i Location Ar L sT I'Uo' Aeov tr Dts(.N /l to"Iraq P/F Downstream y Location ,¢PP)c . 2.11 M t n BELO' 1 DtscHRal.E fir SR,121'f- Effluent Characteristics BOD5 (mg/1) NH3-N (mg/1) D.O. (mg/1) TSS (mg/1) F. Col. (/100 ml) pH (SU) 45fNAc. GltzkortAX- t GferA5£ Summer 30 M• NI . 30 refer: Basinwide / Streamline WLA file at front of subbasin Zao 25 30 Winter 3a oN. 30 Zoo ZS 3o ‘,_:,11 eva.rourra il , D u, Comments: F*ut.irt/ Wt5 CoM8110ED PIPES OOZ - vb5 I4To Oo f , fly, gli R&P upon! f PRNsIoh) r r-,rri rc,r� dosing th.1S �1twv...� days from issuance ot tnis 1„1 rc�1 itli 11 a perrformed at the ed within thirty permitted final effluent for this testing shall be p log ow &1 �atn,cnt processe . ,e,11 toxicity testing results required asp he montof thish in which it was performedermit condition will be , using the parameter d on the Effluent Discharge Monitoring Form (MR-1) for 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 ndtestsuas well de all as all dose/response chemical/physical � Total residual performed in association with the toxicity chlorine of the effluent toxicity sample must be measured and reported if chlorine is employed for disinfection of the waste stream. this Should any test data from this monitoring requirement ten alests impacts� o the rmed by stre..mthe North �lina Division of Environmental Management indicatep uirements or limits. permit may be reopened and modified to include alternate monitoring req imum NOTE: Failure to achieve test conditions asspd in the controls, shall constitute an indocument, alid t st control organism survival and appropriate environmental and will require immediate retesting (within0days with monitoring r oring event) Failure to submit suitable test results will constitute noncompliance F. Modification Condition Note that Outfalls O02 thru 005 are to be eliminatedvwhenthe new 0 200 MGD [�reatment featment a ait lity is (001) is put into operation; the deadline for switchover to September 1, 1992. G. Acute Toxicity Testing Requirement - Daphnid 48 hr - Monitoring (Annual) for Episodic Events The permittee shall conduct FIVE acute toxicityoEffluents tests go Freshwater ols and Marine Organismned in E.P.A. s". 600/4-85/013 entitled "The Acute Toxicity The monitoring shall be performed as a Daphnia pulex orriodaphor ou static test, usin be g effluent collected as a single grab sample. Effluent samples self -monitoring obtained below all waste treatment. Sampling and subsequent testing will occur during the first five of u discrete discharge events after the effective datepermit. The parameter code for this test if using Daphnia t pulex is resultsD. The par seter code for this test pe of this permit if using Ceriodaphnia is TAA3B. All y(MR-1) condition will be entered on the Effluent Dic�e ge Add�tionarm DEM Form AT 1 (original) is to performed, using the appropriate parameter be sent to the following address: Attention: Environmental Sciences Branch North Carolina Division of Environmental Management P.O. Box 27687 Raleigh, N.C. 27611 '_' - -yl ;• +i F_3 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 NCDOC/McCain Hosp. NC0035904 Domestic - 100% Existing Renewal UT Mountain Creek C 030751 - Hold for Hoke FRO J. Shanklin 6/4/93 G21SE Request # 7483 OCT 11 1993 ) ENV. MANAGEMENT Lumber Renewal FAYETTEVILLE REG. OFFICE Stream Characteristic: USGS # Date: Drainage Area (mi2): 0.8 Summer 7Q10 (cfs): 0.15 Winter 7Q10 (cfs): 0.6 Average Flow (cfs): 1.0 30Q2 (cfs): IWC (%): 67.35 Wasteload Allocation Summary (approach taken, correspondence with region, EPA, etc.) Per staff report, McCain hospital has fulfilled their SOC requirements and has expanded their plant to 0.2 MGD. Condition in the previous permit required that the facility tie-in other existing outfalls (002-005) after plant expansion. Region should comment on completion of this requirement. Based on limited data after expansion (as of 5/93), the facility appears to be in compliance with most exisitng limits. The facility has had 1 Fecal violation and has not passed the tox requirement. McCain was not given an NI-I3-N limit at the expansion to 0.2 MGD, but was required to perform monthly toxicity testing. Monthly toxicity testing is recommended again due to continuing failures. Instream data is difficult to evaluate since the facility has not been taking DO and temperature readings at the same time. The DO data does not show any values below 5 mg/l. Some values appear supersaturated, however. The upcoming Lumber River Basinwide Strategy requires that existing facilities in 030751 be renewed with their current limits. Since McCain's expansion has already taken place, exisiting limits are recommended for this renewal. Special Schedule Requirements and additional comments from Reviewers: \ r. � . c tti �� . r- c, Z_ — r.,,c b� f— ¢ r' �' t \ ... • 1 V`• c Recommended by: Reviewed by ,�,�, L� %%'� /�� Instream Assessment: r�'- �X l/Yl Date: D Regional Supervisor: e Q \j i s -&._ Pgr--- Date: ®j t Permits & Engineering: Date: /h(/7k 3 RETURN TO TECHNICAL SERVICES BY: Date:_24143____ NOV 0 6 1993 10 (r L 2 Existing Limits: Wasteflow (MGD): BOD5 (mg/1): NH3N (mg/1): DO (mg/I): TSS (mg/1): Fecal Col. (/100 ml): pH (SU): Residual Chlorine (14/1): Toxicity testing: TP (mg/1): TN (mg/1): Recommended Limits: Wasteflow (MGD): BOD5 (mg/1): NH3N (mg/1): DO (mg/1): TSS (mg/1): Fecal Col. (/100 ml): pH (SU): Residual Chlorine (µg/1): Toxicity testing: Oil & Grease (mg/1): ** TP (mg/1): TN (mg/1): CONVENTIONAL PARAMETERS Monthly Average Summer Winter 0.2 0.2 30 30 monitor monitor 5 5 30 30 200 200 6-9 6-9 25 25 Chronic Monthly P/F at 67% Monthly Average Summer Winter 0.2 0.2 30 30 monitor 5 30 200 6-9 monitor 5 30 200 6-9 25 25 Chronic Monthly P/F at 67% 30 30 60 (daily max) ** Oil&Grease is recommended based on the combining of outfall 004. Organics monitoring is not required since the facility has to fulfill monthly toxicity testing. Other outfalls include filter backwash, boiler blowdown, air conditioner condensate, oil storage containment. Limits Changes Due To: Other (onsite toxicity study, interaction, etc.) Parameter(s) Affected O&G-based on combing of outfall 004. _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. 3 INSTREAM MONITORING REQUIREMENTS Upstream Location: at least 100 ft above discharge Downstream Location: appx. 2.11 miles below discharge at SR 1214 Parameters: temperature, DO, Fecal coliform, conductivity Special instream monitoring locations or monitoring frequencies: 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) _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? _N (Y or N) If yes, explain with attachments. Facility Name I'iCioG /Mc CAIN) uosp. Permit # OCOo35109- Pipe # Qo I CHRONIC TOXICITY PASS/FAIL PERMIT LIMIT (MONTHLY) 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 _67_% (defined as treatment two in the North Carolina procedure document). The permit holder shall perform monthly monitoring using this procedure to establish compliance with the permit condition. The first test will be performed within thirty days from the effective date of this permit. 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, North Carolina 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 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 0.15 cfs Permitted Flow 0. 2- MGD IWC 67.3S % Basin & Sub -basin o3o751 Receiving Stream u r MouAtraik1 Cgic. County i�nKG Recommended by: Date ►ti/1/43 MCL P/F Version 9/91 - i/9z NCo535 Do7g-, -Altecipav 4osP •. 17g-b3 ( '2 — 0Q5 ei-', ; . , ^--EP ) w/) ' vi t�I,A A! r `Pot) r�u/c,7) Z/I /47n, ticPx Ncar ,) T'la (91 r o.15 7r?foo= 0 (o ?,,4d/e NSCN [ e9/-' 0./,0.4.7 —�' 0.2 ,i- z F.4;94Nstn,1 'Av&- Sccoivi,7 Y ziA4/7 5- - No N4/3 -N G/.N/ r PIT D, Z w sz5 • 20- 5W / ,gur -QAvc Plem /ho"17114-Y Tbx 7-6- 5rtAk J FA t r Ty 05 Bry UN2 . 9N So C Ar O./' 1' (%3 FAcLLL wsl3 utBl e -ro A E5T 307'S TSS 7ox -/ , , Srfr &Aar $M7E 1`Wir .e uf, ?` Mire. /J AILF/ V . 6yc.4-A/r HAs etPnNPcO 73 ea? 444,i)) Avec/CA%N a7-A7 ,&fr Al Piew aif ,c--11lai r 74/ e5 7/Mr ow-604-S 40 2 " Dd 5 W t w R6 &A/4 (N -111 DNCG Gb/ CaA4,47 !2 S5iN C.6- EXPO/V5(0N S"13 FAu4!ry Se S rip Bc /N Co,+Py4NGE wire-/ Ao Ds , T55 , C1 &/4729ly e ,q0/4- rbLlF+vi2,44) ' irOve. Se'6 PL 70X FelateleCS - peg A349,4 svreq D 30 7 ! - 05.r71ki61ea( s geCEIVE 0x/S-i p u44/:s. (cV , R C(44" r L ik/T$ ' 2 rk4p -�. 7).; = 't'/Av %_. as- Ct. , 05-" ,e T5s 3O73D cltiv,C Tox • jp/F _. 67 (,0N;12r) DD ` 5 [Aisrae Ini p&!` 0 P/FF1C1a„r 7o eVA(,u/gr6 (k141/C Padbi/ 744iN9 T6'nF 4/D pa. '5 o1V D/FF6 yr ys). TN6r A6-- .sgou) 4-Nr Lo&) p. 0, 's A s WOW- 0 136 6-XPEc r .�... VAPL► 6,s ApRene .ScrP Ee-5 rcr i WHOLE EFFLUENT TOXICITY TESTING 0[SELF-MONITORING SUMMARY] Thu, Sep 16, 1993 FACILITY REOUiREMENT YEAR JAN FEB MAR APR MAY JUN JUI. AIR: SEP OCT NOV CONOCO. INC. GREENSBORO TERMNL PERM:48 HR AC MONIT EPIS 89 — — — — — — — — — -- — NC0074578 Begin:6/1/90 Frequency: 5 OWD A NonComp: 90 — — — — — — — — >90,>90 County:GU➢.FORD Region: WSRO Subbasin: CPF08 91 >90>90' — — — — — — — — — PF: .0067 Special 92 — — — — — 7Q10: 0.00 IWC(%):100.00 Order. 93 >90' — — — — — — NC CONOCO, INC.- CHARLOTTE PRODS. PERM:24 HR AC MONTT EPIS FTHD (GRAB) 89 NONE' NONE' — — — — — --. — — NC0074705 Begin:9/1/93 Frequency: SOWD/A NonComp: 90 — — — — — — — — — — — County:MECJQFNBURG Region: MRO Subbasin: CTB34 91 — — — — — — — — — — — PF: 0 Special 92 — — — — — — — — __ — 7Q 10: 0 iWC(%):100 Order: 93 — — — — — — — CONOCO/SELMA PRODUCTS TERMINAL/COI PERM AC MONIT:FTHD 24HR LC50 EPIS (GRAB) NC0052311 Begin:1/14/93 Frequency: 5OWD/A NonComp: County:JO[HNSTON Region: RRO Subbasin: NEU02 PF: — Special 7Q10:0.0 IWC(%):100% Order. 89 90 91 92 93 CONOVER NE WWTP PERM CHR LIM: 32% Y 89 — NC0024252 Begin:2/1/93 Froquency: Q P/F A MAR JUN SEP DEC NonComp:SINGLE 90 — County:CATAWBA Region: MRO Subbaain: CTB32 91 — PP: 1.5 Special 92 — 7Q10: 5.0 IWC(%):32.0 Order: 93 — NR PASS PASS PASS PASS FAIL — NR PASS — PASS - - PASS - - — I FAIL PASS — — PASS — PASS? FAIL PASS PASS — PASS — - PASS — PA PA PA PA CONTFN7NEA MSD PERM CI IR LIM:11 % NC0032077 Begin:4/15/88 Frequency: Q P/F JAN APR JUL OCT County:PlTr Region:WARO Subbasin:NEU07 PP: 2.85 Special '/1J10•.16.1x) IWt9'R5L'lI rr^I•r' NonComp: Y 89 NR 90 hi; 91 PASS 92 PASS 93 PASS — — — -- --- PASS PASS — -- --- NH N1 PASS PASS PASS — -- — -- --- PASS — — — --- NR PASS PASS PASS PASS — — — — • PASS — — — Na PASS PASS PASS — — — — FA — — -- COOLEEME'E WW'1V PERM CHR LIM: 2.1% NC0024872 ➢egin:7/1/92 Frequency: Q P/F A JUL OCT JAN APR County:DAVIE Region:WSRO Suhbasin:YAi)06 PF: 1.5 Special 7Q10: 106 IWC(%):2.14 Order. NonComp:SiNGLE Y 89 LATE 90 PASS 91 PASS 92 NI 93 PASS — — -- -- -- PASS -- — -- — PASS PASS PASS PASS LATE — — — — PASS — — — — — PASS PASS PASS PASS PASS --• --- -- --- — -- — --- N'1 PASS N1 FAIL PASS -- --- PASS — .-- — COOPER RANCH MIIP PERM:CIIR LIM 19% NC0031470 Begin:8/I/93 Frequency: Q P/F A MAR JUN SEP DEC County; HARNETT Region: FRO Subbasin: CPF PF: 0.1 Special 7Q10: IWC(%): Orden NonComp:SINGLIS 89 — 90 — 91 — 92 — 93 — — — — --- --- -- -- — -- >100' — -- — — — — — — — -- — — H — --- — -- --- --- —_ --- — --- --- -- -- — -- -- ._ --- — 53 CORREC. DEPT OF (CALEDONiA) PERM AC LIM: 24HR FTHD NC0027626 Begin:10/1/92 Frequency: Q P/F A JAN APR JUL OCT County:HALIFAX Region: RRO Subbasin: ROA08 PF:0.80 Special 7Q10: 0.075 IWC(%):94.30 Order. NonComp:SINGLE 89 — 90 FAIL 91 — 92 — 93 PASSE — -- -- — --- --- --- --- Nq FAIL PASSE Nq PASSt --- — -- -- — FAIL -- -- — -- DA — — AA PASSI FAIL — -- -- -- -- -- PASS --- -- >1001 --- --- CORREC. DEPT OF (MCCAIN HOSPITAL-001) PERM CIIR LIM: 67% NC0035904/001 Begin:2/8/91 Frequency: M JAN APR JUL OCT County:HOLE Region: FRO Subbasin: LUM51 PF: 0.200 Special 7Q10: 0.15 IWC(%):67.4 pep NonComp: 89 — 90 FAIL 91 <10 92 7.07 93 14.14 FAIL FAIL -- --- --- FAIL PASS --- --- 24.49 FAIL NR Na >51.0 PASS FAIL PASS , LATE? -- FAIL AIL FAIL >51 _-- FAIL,FAIL PASS PASS <10 24.5 FAIL FAIL FAIL --- -- FAIL PASS --- -- FAIL LATE 7.07 14.14 FAIL <10,FAIL --- F.F -- -- CP&L-ASHEVILLE ASH POND/ 001 PERM AC LIM:77% (GRAB) NC0000396/001 Begin:1/1/91 Frequency: Q A JAN APR JUL OCT Counify:BUNCOMBE Region: ARO Subbasin: FRB02 PF: 1,9 / Special 7Q16:395.0 iWC(%):0.77 Order: NonComp: 89 — 90 — 91 >99' 92 83.28' 93 >99',>99.0' — --- — — — --- --- --• — --- .-. 09.2' 57.37' 17.32' --- •-- — >99' 41 -.- — — H --- >99' >99' 95.6' --- -- --- --- >99' >99' ----- 0 2 consecutive failures = significant noncompliance Y Pre 1989 Data Available LEGEND: PERM = Permit Requirement LET = Administrative Letter - Target Frequency = Monitoring frequency: Q- Quarterly; M- Monthly; BM- Bimonthly; SA- Semiannually: A- Annually; OWD- Only when discharging; D- Discontinued monitoring requirement; IS- Conducting indepe Begin = First month required 7Q10 = Receiving strewn low flow criterion (efs) A = quarterly monitoring increases to monthly upon single failure Months that testing must occur - ex. JAN.APR,JUL,OCT NonComp = Current Compliance Requirement PF = Permitted flow (MGI)) iWC% = lnsuewn waste concentration . P/F = Pass/Fail chronic test AC = Acute CIIR = Chronic Data Notation: f - Fathead Minnow: • - Ceriodaphnia no.: my - Mvsid shrimp: ChV - Chronic value: P - Mortality of stated nercentaec at highest concentration: at - Performed by DEM An Tox Groun: bt - Bad test Reporting Notation: — = Data not required; NR - Not reported; ( ) - Beginning of Quarter Facility Activity Status: 1- Inactive, N - Newly Issued(1'o construct); H - Active but not discharging; t-More data available for month in question SIG = ORC signature needed 15 DIVISION OF ENVIRONMENTAL MANAGEMENT June 15, 1993 MEMORANDUM TO: Donald Safrit, Unit Supervisor Permitting and Engineering Unit FROM: Kerr T. Steven(Acting Regional Supervisor Fayetteville Regional Office SUBJECT: Renewal of NPDES Permit No. NC00359i NC Department of Correction, McCain Hospital McCain, Hoke County Please find enclosed the staff report and recommendations of the Fayetteville Regional Office concerning the renewal of subject NPDES Permit. If you have any questions or require any further information, please advise. KTS/ka Enclosure cc: Technical Support Branch 'LUN 1 8 199j -Lli1ft :�f1 suPPCRT 1CM SOC PRIORITY PROJECT: Yes No X If yes, SOC No. To: Attention: Jule Shanklin Permits and Engineering Unit Water Quality Section June 15, 1993 NPDES STAFF REPORT AND RECOMMENDATIONS County Hoke Permit No. NC0035904 PART I. GENERAL INFORMATION 1. Facility and Address: NC Department of Correction P.O. Box 29540 Raleigh, NC 27626-0540 2. Date of Investigation: May 17, 1993 3. Report Prepared By: Ken Averitte, Environmental Technician, FRO 4. Persons Contacted and Telephone Number: Mr. Gurnie Lee, NC DOC 919-850-2895 Mr. Larry Smith, ORC 919-944-2351 5. Directions to Site: The wastewater treatment plant is located at the south end of Hill Road, just off Hwy. 211 in McCain 6. Discharge Point(s), List for all discharge points: Latitude: 35° 02' 57" Longitude: 79° 21' 26" Attach a USGS map extract and indicate treatment facility site and discharge point on map. USGS Quad No.: G21SE USGS Quad Name: Sanitorium 7. Site size and expansion area consistent with application? X Yes No (If no, explain) 8. Topography (relationship to flood plain included): Rolling. 9. Location of nearest dwelling: None within 1,000 feet. Staff Report and Recommendations Page 2 10. Receiving stream or affected surface waters: Mountain Creek a. Classification: "C" b. River Basin and Subbasin No.: Lumber 030751 c. Describe receiving stream features and pertinent downstream uses: Drainage, fish and wildlife propagation. PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS 1. a. Volume of Wastewater to be permitted: .2 MGD (Ultimate Design Capacity) b. What is the current permitted capacity of the Wastewater Treatment facility? .2 MGD c. Actual treatment capacity of the current facility (current design capacity). .2 MGD d. Date(s) and construction activities allowed by previous Authorizations to Construct issued in the previous two (2) years. An authorization to construct WWTP improvements was issued in 1991, in accordance with a Special Order by Consent in effect at the time. This Order required that improvements be completed by December 7, 1992. All schedule dates have now been met. e. Please provide a description of existing or substantially constructed wastewater treatment facilities. The existing WWTP includes a mechanical bar screen, influent flow measurement with recording capabilities, a 296,000-gallon aeration basin with (3) three floating 10-H.P. aerators, a 40,500-gallon clarifier, a sludge recirculation pump station, a 99,000-gallon aerobic sludge digester with two 25-H.P. submersible aerators, a sludge pumping station for delivery of treated sludge to a 7,500- square-foot drying bed, gas chlorination equipment and contact tank followed by dechlorination ("sulphonator"). f. Please provide a description of proposed wastewater treatment facilities: N/A g• Possible toxic impacts to surface waters: This facility has demonstrated compliance with toxicity requirements. h. Pretreatment Program (POTWs only): In development N/A_ Approved _N/A Should be required N/A Not needed N/A Staff Report and Recommendations Page 3 2. Residuals handling and utilization/disposal scheme: a. If residuals are being land applied, please specify DEM Permit No. * Sites have been evaluated as a preliminary to the NC DOC application for a permit to land apply drying bed sludge. The application should be submitted within 60 days, according to information provided by Mr. Bill Stovall, Director of Engineering for the Department of Correction. Residual Contractor N/A Telephone No. N/A b. Residuals stabilization: PSRP X PFRP Other c. Landfill: N/A d. Other disposal/utilization scheme (Specify): N/A 3. Treatment plant classification (attach completed rating sheet): II 4. SIC Code(s): 9223 Wastewater Code(s) of actual wastewater, not particular facilities; i.e., non -contact cooling water discharge from a metal plating company would be 14, not 56. Primary 11 Secondary 14 16 22 37 Main Treatment Unit Code: 0 0 0 4 3 PART III - OTHER PERTINENT INFORMATION 1. Is this facility being constructed with Construction Grants Funds or are any public monies involved (municipals only)? N/A 2. Special monitoring or limitations (including toxicity) requests: None. 3. Important SOC, JOC, or Compliance Schedule dates (please indicate): Date Submission of Plans and Specifications ALL SOC Begin Construction REQUIREMENTS HAVE Complete Construction BEEN FULFILLED 4. Alternative Analysis Evaluation: Has the facility evaluated all of the nondischarge options available. Please provide regional perspective for each option evaluated. Staff Report and Recommendations Page 4 Spray Irrigation: This option was considered. However, the DOC indicates that the acreage surrounding this facility was owned by the Department of Administration, not DOC. Connection to Regional Sewer System: Not available within several miles. Subsurface: Not practical. Other disposal options: None. 5. Other Special Items: None. PART IV - EVALUATION AND RECOMMENDATION It is the recommendation of this office that Permit No. NC0035904 be reissued to the North Carolina Department of Correction, McCain Hospital for an additional 5-year period. Signature of Report Preparer Water Quality Regional Supervisor Date RATING SCALE FOR CLASSIFICATION OF FACILITIES (3) Mailing Address: PC 73 G 5-10 Name of Plant: Ak Doc. - /41 (. ;!✓7,J Owner or Contact Person: /1'A ar)/2 i", County: KL� NPDES Permit No. NC003.5 IssueDate: Existing Facility % — Rated By: ,� ,�ifi Date: Reviewed (Train. & Cert.) Reg. Office Zl ' gte -G 5J" Telephone: 9(-55 -) y ,- Nondisc. Per. No. Expiration Date: New Facility _ «- 9 Reviewed (Train. & Cert.) Central Office ORC Grade Plant Class: (circle one) III IV Total Points-1/ POINTS Industrial Pretreatment Units and/or Industrial Pretreatment Prooram (see definition No. 33) DESIGN FLOW OF PLANT IN GPD (nol applicable to non -contaminated cooling waters, sludge handling facilities for water purification plants, totally closed cycle systems (def. No. 11), and facilities consisting only of Item (4) (d) or Items (4) (d) and (11) (d)) 0 -• 20,000 1 20,001 -- 50,000 2 50,001 -. 100,000 3 100,001 -• 250,000 O 250,001 -- 500,000 5 500,001 --1,000,000 8 1,000,001 -- 2,000,000 10 2,000,001 (and up) - rate 1 point additional for each 200,000 gpd capacity up to a maximum of 30 Design Flow (gpd) : PRELIMINARY UNITS (see definition no. 32) (a) Bar Screens 1 Of (b) Mechanical Screens, Static Screens or Comminuting Devices (c) Grit Removal or (d) Mechanical or Aerated Grit Removal (e) Flow Measuring Device or (f) Instrumented Flow Measurement (g) Preaeration (h) Influent Flow Equalization 2 (i) Grease or Oil Separators - Gravity 2 Mechanical 3 Dissolved Air Flotation. 8 (j) Prechtorination 5 2 1 4 (4) PRIMARY TREATMENT UNITS (a) Septic Tank (see definition no. 43) 2 (b) Imhoff Tank 5 (c) Primary Clarifiers 5 (d) Settling Ponds or Settling Tanks for Inorganic Non -toxic Materials (sludge handling facilities for water purification plants, sand, gravel, stone, and other mining operations except recreational activities such as gem or goid mining) 2 (5) SECONDARY TREATMENT UNITS (a) Carbonaceous Stage (i)Aeration - High Purity Oxygen System Diffused Air System 1 0 Mechanical Air System (fixed, floating or rotor) Separate Sludge Reaeralion 3 (ii) Trickling Filter High Rate 7 Standard Rate 5 Packed Tower (iii) Biological Aerated Filter or Aerated Biological Filter 1 0 (iv) Aerated Lagoons 1 0 20 5 (v) Rotating Biological Contactors 1 0 (vi) Sand Filters - intermittent biological 2 recirculating biological 3 (vii) Stabilization Lagoons (viii)Clarifier (ix) Single stage system for combined (- carbonaceous removal of BOD and nitrogenous removal by nitrification (see def. No. 12) (Points for this item have to be in addition to items (5) (a) (i) through (5) (a) (viii) 8 (x) Nutrient additions to enhance BOD removal 5 (xi) Biological Culture ('Super Bugs') add:lion to enhance organic compound removal 5 (b) Nitrogenous Stage (i) Aeration - High Purity Oxygen System 20 Diffused Air System 10 Mechanical Air System (fixed, floating, or rotor) 8 Separate Sludge Reaeration 3 (ii) Trickling Filter - High Rale 7 Standard Rate 5 Packed Tower 5 (iii) Biological Aerated Fitter or Aerated Biological Filler 10 (iv) Rotating Biological Contactors 10 (v) Sand Filter - intermittent biological 2 recirculating biological .......3 (vi) Clarifier 5