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HomeMy WebLinkAboutNC0037508_Wasteload Allocation_19940825NPDES WASTE LOAD ALLOCATION PERMrr NO.: NCO037508 PERMITTEE NAME: Moore County Board of Commissioners FACILITY NAME: Moore County Regional W.W.T.P. Facility Status: Existing Permit Status: Renewal Major _q Minor Pipe No.: 001 Design Capacity: 6.7 MGD Domestic (% of Flow): Industrial (% of Flow): am 4.2 % Comments: Facility has a pretreatment pro rg am• r f M s�crf 6/6yf,/ RECEIVING STREAM; Aberdeen Creek Class: C Sub -Basin: 03-07-50 Reference USGS Quad: G21SW (please attach) County: Moore Regional Office: Fayetteville Regional Office Previous Exp. Date: 11/30/94 Treatment Plant Class: IV Classification changes within three miles: change to C Sw HOW at Drowning Creek. pU-0 Requested by: Sel, Goris Date: 6/20/94 Prepared by:-- Date: I q Qi Gus; i99�1 Reviewed by: ("Oil4, F, MdJ 42:) - Date: 860,E lo9.5/ 165 q Modeler Date Rec. # Area (mio: 36.3 (cfs) 15.2 Average Streamflow (cfs): 47.2 w7Q10 (cfs): 28.7 30Q2 (cfs): n/a (Ceriodaphnia) P / F Toxicity Test: Qrtly @ 41 % [March, June, September, December] i Monitoring: Parameters: temperature, dissolved oxygen, fecal coliform, conductivty Upstream Location: at least 1 00'upstream of outfall Downstream Location: SR 1225 Wasteflow (MGD): BOD5 (mg/1): NH3N (mg/l): DO (mg/I): TSS (mg/1): Fecal Col. (/100 ml): pH (SU): Residual Chlorine (4g/1): Oil & Grease (mg/1): TP (mg/1): TN (mg/1): Monthly Average Summer Winter 6.7 22 30 17 monitor 5.0 5.0 30 30 200 200 6-9 6-9 monitor monitor nr nr monitor monitor monitor monitor Daily Maximum Cadmium (µfill): nr Chromium (fig/1): nr Copper (µg/): monitor Nickel (µo): nr Lead Wl): nr Zinc (µo): monitor Cyanide (µgp): monitor Selenium (µgll): nr Mercury (µo): nr Silver (µo): monitor LTMP: monitored per Long Term Monaoring Plan LTMP LTMP LTMP LTMP LTMP LTMP LTMP LTMP LTMP LTMP shall be no discharge of floating solids or visible foam in other than trace J OFFICE OF SYSTEM SUPERINTENDENT April 20, 1994 '::A001EZ CVv�L_'L & 4::9F_CVF_T <.-::4viLt�ty Water Pollu*ion Control System P. 0. Box 813 Pinebluff, North Carolina 28373 p, W. A. S, I 1989 GOUM�{ Mr. Kerr T. Stevens, Regional Supervisor Division of Environmental Management Wachovia Building, Suite 714 Fayetteville, _'.C. 28301-5043 Ref: Compliance Evaluation Inspection MOWASA (Moore County) WWTP NPDES Permit No. NC0037508 Correspondence of April 7, 1994 Dear Mr. Stevens: TELEPHONE: 919-281-3146 FAX: 919.281-2047 Mr. David Harris, President of MOWASA, has forwarded to me your correspondence of April 7, 1994 to reply to Item 10 which states that the Moore County WWTP Plant needs to have a pernanent sludge disposal program. Presently the WWTP is ev lusting three disposal methods. 1. Contract hauling of our sludge to a sub -title D Landfill in Sampson County. 2. Land Application of Sludge: Within the next 60 to 90 days DEM should receive from MOWASA a completed land application permit for our sludge to be applied on the following sites: A. The Wastewater Treatment Plant B. Closed cells at the Moore County Landfill +' C. Adjacent property near the WWTP (farmland) bermuda hay production and pine tree/seedling growth. 3. Composting: The WWTP has developed a compost recipe of sludge, shredded newspaper & yard waste. This project is still in its infancy stage. If you have any questions concerning my explanation, please do not hesitate to call me at 910-281-3146. Iari cerely, y Frick, System Superintendent GAF/emb pc: Mr. David Harris, President, MOWASA Mr. W. David McNeill, Jr., County Manager FACT SHEET FOR WASTELOAD ALLOCATION Request # 7884 Facility Name: Moore County Regional Waste Water Treatment Plant NPDES No.: NCO037508 Type of Waste: Domestic - 95.8 % Industrial - 4.2 % Facility Status: Existing Permit Status: Renewal Receiving Stream: Abedeen Creek Stream Classification: C Subbasin: 03 - 07 - 50 County: Moore Stream Characteristic: Regional Office: Fayetteville USGS # Map Report Update Requestor: Goris Date: 1994 Date of Request: 6/21 /94 Drainage Area (miz): 36.3 Topo Quad: G 21 S W Summer 7Q10 (cfs): 15.2 Winter 7Q10 (cfs): 28.7 Average Flow (cfs): 47.2 30Q2 (cfs): IWC M: 41 % Wasteload Allocation Summary �t •� (approach taken, correspondence with region, EPA, etc.) 0 Facility not taking dissolved oxygen measurements for Instream Monitoring data. The facility will not recieve a change in NH3-N since they have been consistently passing their Toxicity Test. (one fail 3 / 94) Special Schedule Requirements and additional comments from Reviewers: Flo i?o�K rlek �ccvf.++•.�...\ Mct.w� :4..:� '(ham does •) Fob `iti e.. U• 'k •f vim•.s .t J'. ','& Recommended b Reviewed by Instream Assessment Regional Supervisor: Permits & Engineerin RETURN TO TECHNICAL SUPPORT BY: AUG 17 1994 CONVENTIONAL PARAMETERS Existing Limits: Monthly Average Summer Winter Wasteflow (MGM 6.7 BOD5 (mg/1): 22 30 NH3N (mg/l): 17 monitor DO (mg/1): 5.0 5.0 TSS (mg/1): 30 30 Fecal Col. (/100 ml): 200 200 pH (Si): 6-9 6-9 Residual Chlorine (µg/1): monitor monitor Oil & Grease (mg/1): nr nr TP (mg/1): monitor monitor TN (mg/1): monitor monitor There shall be no discharge of floating solids or visible foam in other than trace amounts. Recommended Limits: Monthly Average Summer Winter WQ or EL Wasteflow (MGD): 6.7 BOW (mg/1): 22 30 WQ / M NH3N (mg/1): 17 monitor WQ / - DO (mg/1): 5.0 5.0 wp TSS (mg/1): 30 30 Fecal Col. (/100 ml): 200 200 pH (Si): 6-9 6-9 Residual Chlorine (µg/1): monitor monitor Oil & Grease (mg/1): nr nr TP (mgft monitor monitor TN (mg/1): monitor monitor There shall be no discharge of floating solids or visible foam in other than trace amounts. Limits Changes Due To: Parameter(s) Affected (explanation of any modifications to past modeling analysis including new flows, rates, field data, interacting discharges) (See page 4 for miscellaneous and special conditions, if applicable) TOMCS/UETALS Type of Toxicity Test: Chronic (Ceriodaphnia) Toxicity Test P / F Existing Limit: 41 % Recommended Limit: 41 % Monitoring Schedule: March, June, September, and December Existing Limits Daily Max. COD (mg/): nr Cadmium (µg/1): monitor Chromium (µg/1): monitor Copper (Nib): monitor Nickel (µg/1): monitor Lead (µg/1): monitor Zinc (µg/1): monitor Cyanide (µg/1): 12.0 Selenium (µg/1): 12.0 Mercury (µg/1): monitor Silver (µg/1): monitor . 7 7T 61700 M Daily Max. WQ or EL COD (mg/): nr Cadmium (µg/1): nr * Chromium (µg/1): nr * Copper (µg/1): monitor * Nickel (µg/l): nr * Lead (µme): nr * Zinc (µg/1): monitor * Cyanide (µg/1): monitor * Selenium (µg/l): Mercury (µg/1): 0.03 Silver (µg/l): monitor * *monitored per Long Term Monitoring Plan Limits Changes Due To: Parameter(s) Affected refer attached FRO pc*-'sW!r 4` zv. W/ -r1\ts P'V.t.aG v►Mvtr6r--14 . 'C�►s 10*-r— q A RV-Powte-D Fk O%A%S WAS "Vr OMB Wcr 1rkp L �S-Cltti►•r f tyw� 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. •O No parameters are water quality limited, but this discharge may affect future allocations. INSTREAM MONITORING REQUIREMENTS Upstream Location: at least 100' upstream of outfall Downstream Location: SR 1225 Parameters: Temperature, dissolved oxygen, fecal coliform, conductivity Special instream monitoring locations or monitoring frequencies: Upstream and downstream samples shall be grab samples. Stream samples shall be collected three times per week during the months of June, July, August, and September and once per week during the remaining months of the year. MISCELLANEOUS INFORMATION & SPECIAL CONDITIONS Has the facility depnonstrated the ability to meet the proposed new limits with existing treatment facilities? Yes V 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? • _• 41 • Wasteload sent to EPA? (Major) (Y or N) (If yes, then attach updated evaluation of facility, including toxics spreadsheet, modeling analysisif modeled at renewal, and description of how it fits into basinwide plan) Additional Information attached? (Y or N) If yes, explain with attachments. Facility Name Moore County Regional WWTP Permit # NCO037508 Pipe # 001 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 41 % (defined as treatment two in the North Carolina procedure document). The permit holder shall perform Quart� 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 March, June, September, and December. 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 Permitted Flow 1WC Basin & Sub -basin Receiving Stream County 15.2 c fs 6.7 MGD 41 % 03-07-50 Aberdeen Creek Moore QCL P/F Version 9191 Recommended bX Farrell Keough i I Date d V Lead: Max. Pred Cw 97.5 all 26 data points were below detection levels of at least 25.0 µg/1(reason Allowable Cw 61.6 for a max. predicted value was a A in detection levels). no recommended requirement in NPDES Permit Zinc: Max. Pred Cw 231 maximum value of 110 µg/l Allowable Cw 123.2 Monitor in NPDES Permit, per current SOP Mercury: Max. Pred Cw 0.3 25 out of 26 data points were below detection levels of at least 0.2 µg/1 Allowable Cw 0.03 positive value of 0.2 µg/l on 2 December,1993 Limit due to hits and strong possibility of having levels in effluent Silver: Max. Pred Cw 18.7 24 out of 26 data points were below detection levels of at least 10 µg/l Allowable Cw 0.1 Monitor in NPDES Permit, per current SOP Cyanide: Max. Pred Cw 28.9 60 out of 61 data points were below detection levels of at least 5.0 µg/l Allowable Cw 12.3 Monitor in NPDES Permit [ per Pretreatment, this a POC in all three SIU's ] Selenium: Max. Pred Cw 0.0 all 61 data points were below detection levels of at least 5.0 µg/1 Allowable Cw 12.3 no recommended requirement in NPDES Permit Cadmium: Max. Pred Cw 4.3 all 26 data points were below detection levels of at least 50 µg/i Allowable Cw 4.9 no recommended requirement in NPDES Permit Chromium: Max. Pred Cw 42.5 all 26 data points were below detection levels of at least 50 µg/1 Allowable Cw 123.2 no recommended requirement in NPDES Permit Copper: Max. Pred Cw 341 maximum value of 110 µg/1 Allowable Cw 17.2 Monitor in NPDES Permit, per current SOP Nickel: Max. Pred Cw 52.5 all 26 data points were below detection levels of at least 50 µg/l Allowable Cw 216.8 no recommended requirement in NPDES Permit SIU"S Town of Aberdeen Pinehurst Village Southern Pines Pinebluff Resort JPS Carpet Corporation Eritech Corporation bases] Ingersoll Rand Aro Tool Carolina Galvanizing Corporation Intek Princival Product municipality municipality municipality municipality Yarns, Latex, Soaps Grounding System [steel, copper, nickel, acids, Pneumatic Hand Tools [steel, aluminum, bar stock] Copper Bonded Ground Electrodes [steel, copper, nickel, acids, bases] Woven Polyester Product [yarn and dye] Request # 7884 Facility Name: Moore County Regional Waste Water Treatment Plant NPDES No.: NC0037508 Type of Waste: 95.8 % Domestic / 4.2 % Industrial Facility Status: Existing Permit Status: Renewal Receiving Stream: Aberdeen Creek Stream Classification: C Subbasin: 03-07-50 County: Moore Stream Characteristic: Regional Office: Fayetteville USGS # Requestor: Goris Date: Date of Request: 6 / 21 / 94 Drainage Area (mi2): 36.3 Topo Quad: G 21 SW Summer 7Q10 (cfs): 1 0.q 15 Z Winter 7Q10 (cfs): 20.0 .} Average Flow (cfs): 47 y;-Z 3002 (cts): 2 .8 _ IWC (%): 4 .6 % rf/% Existing WLA checked: x Staff Report: x Topochecked: USG USGSFlows confirmed: HA update attached }�i) rror U taco p rlAtaa fin. -iv o eeNeuNo [ WC Spreadsheet: nr -- Stream Classification: x Nutrient Sensitivity: Instream Data: x FACILITY DID NOT TAKE DO's Brief of wr a Analysis 1977: recommended secondary limits; 100% Domestic w/ design capacity of 6.7 mgd 1982: renewed w/ same limits 1986: remodelled w/ recommended limits of: BODs 22 (30), NH3-N 17 (monitor), dissolved oxygen 5 (monitor), TSS 30, fecal coliform 1,000, pH 6 - 9, and Chronic Toxicity Test. Facility now considered 95 % Domestic / 5 % Industrial 1992: renewed with new flows, (slightly lower 7010). No change in ammonia limit due to consistent passing of toxicity test, (although DMR's were wll below permitted levels). Cyanide and Selenium had recommended limits w/ monitoring for all other metals. DMR's well below permitted levels, (chlorine very low for these types of facilities) facility did not take DO's with their instream monitoring Facility has consistent Passing of Toxcity Test LTM P Lead: Max. Prod Cw 97.5 x all 26 data points were below detection levels of at least 25.0 µgA (reason Allowable Cw 61.6 for a max. predicted value was a A in detection levels). no recommended requirement in NPDES Permit Zinc: Max. Prod Cw 231 x maximum value of 110 µg/I Allowable Cw 123.2 Monitor in NPDES Permit, per current SOP Mercury: Max. Pred Cw 0.3 x 25 out of 26 data points were below detection levels of at least 0.2 µg/I Allowable Cw 0.03 positive value of 0.2 µg/I on 2 December, 1993 Limit - Silver: Max. Pred Cw 18.7 x 24 out of 26 data points were below detection levels of at least 10 µg/I Allowable Cw 0.1 Monitor in NPDES Permit, per current SOP Cyanide: Max. Pred Cw 28.9 x 60 out of 61 data points were below detection levels of at least 5.0 µgA Allowable Cw 12.3 Monitor in NPDES Permit [ per Pretreatment, this a POC in all three SIU's ] Selenium: Max. Pred Cw 0.0 x all 61 data points were below detection levels of at least 5.0 µgA Allowable Cw 12.3 no recommended requirement in NPDES Permit Cadmium: Max. Pred Cw 4.3 x all 26 data points were below detection levels of at least 50 µgA Allowable Cw 4.9 no recommended requirement in NPDES Permit Chromium: Max. Pred Cw 42.5 x all 26 data points were below detection levels of at least 50 µgA Allowable Cw 123.2 no recommended requirement in NPDES Permit ' Copper: Max. Pred Cw 341 Allowable Cw 17.2 ' Nickel: Max. Prod Cw 52.5 Allowable Cw 216.8 SIU's Town of Aberdeen Pinehurst Village Southern Pines Pinebluff Resort JPS Carpet Corporation Eritech Corporation Ingersoll Rand Aro Tool Carolina Galvanizing Corporation Intek Pretreatment refer attached spreadsheet maximum value of 110 µgA Monitor in NPDES Permit, per current SOP all 26 data points were below detection levels of at least 50 µgA no recommended requirement in NPDES Permit municipality municipality municipality municipality Yarns, Latex, Soaps Grounding System [steel, copper, nickel, acids, bases] Pneumatic Hand Tools [steel, aluminum, bar stock] Copper Bonded Ground Electrodes [steel, copper, nickel, acids, bases] Woven Polyester Product [yarn and dye] x Waste Water Treatment Plant NC00 May, 1993 through May, 1994 Facility Name = Moore Co. Re Iona NPDEss= NCO037508 Ow (MGD) = 6.70 m d 7010s (cfs)= 10.54 cfs 1wc(%)= 49.63% BDL FINAL RESULTS ad Maximum Value 25.0 Max. Prod Cw 97.5 Allowable Cw 50.4 Zinc [AL] Maximum Value Max. Prod Cw Allowable Cw 25 BDL [26 total data pts] Mercury Maximum Value Max. Prod Cw Allowable Cw 24 BDL Silver [AL] Maximum Value Max. Prod Cw Allowable Cw 60 BDL [61 total data pts] Cyanide Maximum Value Max. Pred Cw Allowable Cw 61 BDL Selenium Maximum Value Max. Prod Cw Allowable Cw 26 BDL Cadmium Maximum Value Max. Prod Cw Allowable Cw 26 BDL Chromium Maximum Value Max. Prod Cw Allowable Cw Copper Maximum Value Max. Prod Cw Allowable Cw 26 BDL Nickel Maximum Value Max. Prod Cw Allowable Cw 110.0 231.0 100.7 0.2 0.3 0.02 11.0 18.7 0.1 17.0 28.9 10.1 2.5 0.0 10.1 2.5 4.3 4.0 25.0 42.5 100.7 110.0 341.0 14.1 25.0 52.5 177.3 uelnt�cl FtCW5 Shank z� 1f ud� old �1ou73 - dtc�N� hlaj�c � dl�cNcc. P'11* out Afqo'-� Co 7/1194 May, 1993 through May, 1994 Facility Name= Moore Co. Regional WWTP NCO037508 NPDES A= 6.70 m d Ow (Mcn) = 15.20cfs 7010s(c1s)= 40.59% lwC 26 BDL FINAL RESULTS Lead Maximum Value 25.0 Max. Pred Cw 97.5 Allowable Cw 61.6 Zinc [AL] Maximum Value 110.0 Max. Pred Cw 231.0 Allowable Cw 123.2 ^x J t0� `cuea c. 0oP l 25 BDL [26 total data pts] i Mercury Maximum Value 0.2 Max. Pred Cw 0.3 Allowable Cw 0.03 Lko" 24 BDL Silver [AL] Maximum Value 11.0 Max. Pred Cw 18.7 aoN tea is rzn� 5oP1 Allowable Cw 0.1 6,0 BDL [61 total data pts] Cyanide Maximum Value 17.0 Max. Pred Cw 28.9 Allowable Cw 12.3 61 BDL Selenium Maximum Value 2.5 Max. Pred Cw 0.0 0 1 M,c aEcc.r� Allowable Cw 12.3 26 BDL Cadmium Maximum Value 2.5 Max. Pred Cw 4.3 Allowable Cw 4.9 26 BDL Chromium Maximum Value 25.0 Max. Pred Cw 42.5 l Lc Allowable Cw 123.2 v a M r may, G� Copper CAI Maximum Value 110.0 Max. Pred Cw 341.0 r,°ticraa-` - J01ok Allowable Cw 17.2 26 BDL Nickel Maximum Value 25.0 Max. Pred Cw 52.5 lz ec .4.4 Allowable Cw 2168 6/24/94 May. 1993 through May. 1994 M� Parer awat Lead Parameter- Enc (AL] Standad - 25 }rgA Standard - 50 µgA n BDLa1/2DL If 1/2 DL RESULTS n BDL-1/2DL elf 1/2 DL RESULTS 1 2.5 SW Dev. 9.7 1 12 SW Dev. 26.7 2 2.5 Mean 7.7 2 15 Mean 42-7 3 2.5 C.V. 1.3 3 23 C.V. 0.6 4 2.5 4 25 ' 5 2.5 5 41 6 2.5 Adult Factors 3.9 a 40 Mult Factor - 2.1 7 2.5 ' Max. Value 25.0 pgA 7 49 Max. Value 110.0 µo 8 2.5 Max. Prod Cv 97A po 8 34 Max. Pred Cv 231.0 po 9 2.5 Allowable Cw 61.6 po 9 42 Allowable Cw 123.2 pgll 10 2.5 10 40 11 2.5 11 110 12 2.5 12 65 13 2.5 13 23 14 2.5 14 40 15 2.6 15 32 16 2.5 16 44 17 2.6 17 10 ' 16 2.5 16 10 ' 19 2.5 19 58 20 2.5 20 50 21 25 ' 21 47 22 25 22 33 23 25 23 110 24 25 24 26 25 25 • 25 40 26 25 28 92 27 27 28 28 29 29 30 30 31 31 32 32 33 33 34 34 35 35 36 36 37 37 38 38 39 39 40 40 41 41 42 42 43 43 44 44 45 45 48 46 47 47 48 48 49 49 50 50 51 51 52 52 53 53 54 54 55 5 56 56 57 57 58 58 59 59 60 60 61 61 May,1993 through May,1994 Parameter- Memury Parameter- Sliver(AL] Standard- 0.012 pm StwWard- 0.06 µw n BDL=1/2DL If 1/2 DL RESULTS n BDL=1/2DL If 112 DL RESULTS 1 0.1 SW Dev. 0.0 1 11 Std Dev. 10 2 0.1 Mean 0.1 2 2.5 Mean 5.1 3 0.1 C.V. 0.2 3 5 C.V. 0.4 4 0.1 4 5 ' 5 0.1 5 5 ` 6 0.1 Malt Factor a 1.3 6 5 Wt Factor = 1.7 7 0.1 ` Max. Value 0.2 po 7 5 ' Max. Value 11.0 �q/l 6 0.1 Max. Prod CM 0.3 PO e 5 ' Mm. Prod CM 18.7 �gA 9 0.1 Allowable Cw 0.03 yn 9 5 Allowable Cw 0.1 �n 10 0.1 10 5 ' 11 0.2 2 Deownber.1993 11 5 ' 12 0.1 12 5 ' 13 0.1 13 5 ' 14 0.1 14 5 ' 15 0.1 15 5 ' 16 0.1 i6 5 ' 17 0.1 17 5 ' 18 0.1 is 5 ' 19 0.1 19 5 ' 2D 0.1 20 5 ' 0 0.1 21 2.5 ' 22 0.1 22 2.5 ' 23 0.1 23 2.5 ' 24 0.1 24 8 25 0.1 25 2.5 ' 28 0.1 ' 26 10 27 27 28 28 28 29 30 30 31 31 32 32 33 33 34 34 35 35 36 36 37 37 38 38 39 39 40 40 41 41 42 42 43 43 44 44 45 45 46 46 47 47 48 48 49 49 60 50 51 51 52 52 53 53 54 54 55 55 56 56 57 57 56 58 59 59 60 60 61 61 May. 1993 through May, 1994 Parameter• Cyanide Parameter- Selenium Standard 5 µall Standard 5 µall n BDL.1/2DL •lf 1/2 DL RESULTS n BDL-1/2DL If 1/2 DL RESULTS 1 2.5 Sid Dev. 1.9 1 2.5 SW Dev. 0.0 2 2.5 Mean Z7 2 2.5 Mean 2.5 3 2.5 C.V. 0.7 3 2.5 C.V. 0.0 4 2.5 ` 4 2.5 ' 5 2.5 5 2.5 ' 6 2.5 bluff Factor - 1.7 6 2.5 Wit Facbr a 0.0 7 2.5 Max. Value 17.0 µSA 7 2.5 Max. Value 2.5 µgil 8 2.5 Max. Prod CM 28.9 µall 8 2.5 Wax. Pred Cv 0.0 µgll 9 2.5 Allowable N 12.3 µall 9 2.5 Allowable C% 12.3 µgll 10 2.5 10 2.5 ' 11 2.5 11 2.5 ' 12 2.5 12 2.5 ' 13 2.5 13 2.5 ' 14 2.5 14 2.5 ` 15 2.5 15 2.5 ' 16 2.5 16 2.5 ' 17 2.5 17 2.5 ` 18 2.5 ` 18 2.5 ' 19 2.5 19 2.5 ' 20 2.5 20 2.5 ' 2/ 2.5 21 2.5 ' 22 2.5 22 2.5 ' 23 2.5 23 2.5 ' 24 2.5 24 2.5 ' 25 2.5 25 2.5 ' 28 2.5 26 2.5 ` 27 2.5 27 2.5 ' 28 2.5 28 2.5 ' 29 2.5 29 2.5 ` 3a 2.5 30 2.5 ' 31 2.5 31 2.5 ' 32 2.5 32 2.5 ` 33 2.5 33 2.5 ' 34 2.5 34 2.5 ' 35 2.5 35 2.5 ` 36 2.5 36 2.5 ' 37 2.5 37 2.5 ' 38 2.5 38 2.5 ` 39 2.5 39 2.5 ' 40 2.5 40 2.5 ' 41 2.5 41 2.5 ' 42 2.5 42 2.5 ' 43 2.5 43 2.5 ' 44 2.5 44 2.5 ' 45 2.5 45 2.5 ' 46 2.5 46 2.5 ` 47 2.5 47 2.5 ' 48 2.5 48 2.5 ' 49 2.5 49 2.5 ' 50 2.5 50 2.5 ' 51 2.5 51 2.5 ' 52 2.5 52 2.5 ' 53 2.5 53 2.5 ' 54 2.5 54 2.5 ' 55 2.5 55 2.5 ' 58 2.5 66 2.5 ' 57 2.5 57 2.5 ' 56 2.5 58 59 17 13-May-93 59 60 2.5 60 61 2.5 61 May.1993 through May.1994 rs Pamamemw Cadmium stanaad- 2 PO n BDL-1/2DL If 1/2 DL RESULTS 1 1 Std Dev. 0.5 2 1 Mean 1.2 3 1 C.V. 0.4 4 1 ' 5 2 ' 6 2 ` Mint Factor w 1.7 7 1 Max. Value 2.5 µgh 8 1 Mm Prod Cn 4.25 µell 9 1 Allowable Cw 4.93 µell 10 1 ' 11 1 ' 12 1 ` 13 1 ' 14 ' 15 1 ` 16 1 ` 17 1 ` 19 1 ` 19 1 ' 20 1 ' 21 1 ` 22 1 ' 23 1 ' 24 1 ' 25 2.5 ' 28 2.5 ` 27 26 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 6o Pffameter. Chromium Standad 50 PO n BDLs1/2DL If 1/2 DL RESULTS 1 2.5 Std Dev. 8.3 2 2.5 Mean 21.5 3 2.5 C.V. 0.4 4 2.5 ' 5 25 ` 6 25 Mint Facbr s 1.7 7 25 ' Max. Value 25.0 µo 8 25 IAax. Prod Cv 42.5 µo 9 25 Allowable Cw 123.2 µgel 10 25 ' 11 25 ' 12 25 ' 13 25 ' 14 25 ' 15 25 • 16 25 • 17 25 ' 16 25 ' 19 25 ' 20 25 ' 21 25 ` 22 25 • 23 25 ` 24 25 ' 25 25 ' 26 25 f 27 26 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 May, 1993 through May, 1994 Parameter- Copper Parameter- Nickel sra mwm 7 90 star da d- 88 µO n BDLs1/2DL If 1/2 DL RESULTS n BDLs1/2DL If 112 DL RESULTS 1 1 SEd Dev. 22.1 1 5 SW Dev. 9.9 2 1 Mean 21.8 2 5 Mean 17.3 3 10 C.V. 1.0 3 5 C.V. 0.6 4 11 4 5 ' 5 10 5 25 • 6 10 Mult Factor 3.1 6 25 Mint Factor = 2.1 7 10 Max. Value 110.0 µga 7 25 Max. Value 25.0 µgm 8 10 Max. Pred Ca 341.0 µell 8 25 Max. Prod Cv 52.5 µgel 9 10 ' Allowable Cw 17.2 µgA 9 25 ' Allowable Cw 216.8 µgel 10 10 10 25 ' 11 22 11 25 ' 12 45 12 25 ' 13 33 13 25 ' 14 24 14 25 ' 15 26 15 25 ` 16 30 16 25 ' 17 10 17 25 ' 18 110 18 25 ' 19 10 19 25 ' 20 10 20 25 • 21 45 21 5 ' 22 29 22 5 ' 23 10 23 5 ' 24 10 24 5 ' 25 30 25 5 ' 20 40 20 5 ' 27 27 28 28 29 29 30 30 31 31 32 32 33 33 34 34 35 35 36 30 37 37 38 38 39 39 40 40 41 41 42 42 43 43 44 44 45 45 46 48 47 47 48 48 49 49 50 50 51 51 52 52 53 53 54 54 55 55 66 56 57 57 58 58 59 59 60 60 61 61 624/94 SOC PRIORITY PROJECT: Yes If yes, SOC No. To: Attention: Permits and Engineering Unit Water Quality Section April 6, 1994 NPDES STAFF REPORT AND RECOMMENDATIONS County Moore Permit No. NCO037508 PART I. GSNBRAL IkWOORMATION No x 1. Facility and Address: Moore County Regional Wastewater Treatment Plant P.O. Box 813 Pinebluff, NC 28373 2. Date of Investigation: March 24, 1994 3. Report Prepared By: Grady Dobson, Environmental Engineer, FRO 4. Persons Contacted and Telephone Number: Gary Frick, Sys. Super., (910) 281-3146 5. Directions to Site: Take SR 1100, south of Addor, for approximately 1 mile. Treatment plant is on right side of road. 6. Discharge Point(s), List for all discharge points: Latitude: 350 04' 04" Longitude: 78' 28' 07" Attach a USGS map extract and indicate treatment facility site and discharge point on map. USGS Quad No.: G21SW USGS Quad Name: Pinebluff, NC 7. Site size and expansion area consistent with application? Approximately 50 acres. x Yes No (If no, explain) 8. Topography (relationship to flood plain included): Flat and terraced; 0-10% slope. 9. Location of nearest dwelling: None within 1,000 feet. 10. Receiving stream or affected surface waters: AgGapEerJ CiraEti a. Classification: "Class C" b. River Basin and Subbasin No.: 03-07-50 C. Describe receiving stream features and pertinent downstream uses: Fish and wildlife propagation, secondary recreation, agriculture, and other uses requiring waters of lower quality. Staff Report and Recommendation Page 2 PART II - DffiI3tIPTION OF DISCHARGE AND TREATMENT WM; KS 1. a. Volume of Wastewater to be permitted: 6.67 MGD (Ultimate Design Capacity) b. What is the current permitted capacity of the Wastewater Treatment facility? 6.67 C. Actual treatment capacity of the current facility (current design capacity). 6.67 d. Date(s) and construction activities allowed by previous Authorizations to Construct issued in the previous two (2) years. N/A e. Please provide a description of existing or substantially constructed wastewater treatment facilities. N/A The existing waste facility consists of the following: Preaeration and grit removal, primary clarification, first (1st) stage activated sludge, intermediate clarification, second (2nd) stage aeration, final clarification, anaerobic sludge digestion, sludge drying beds, and post aeration. f. Please provide a description of proposed wastewater treatment facilities: N/A g. Possible toxic impacts to surface waters: N/A h. Pretreatment Program (POTWs only): In development Approved x Should be required Not needed-- 2. Residuals handling and utilization/disposal scheme: This facility currently still landfills sludge at the Moore County landfill. A sludge pilot study is currently underway to determine if sludge can be utilized with Moore County yard waste and made into a compost material suitable to be utilized as a landscaping product around the many golf courses in this area. Mr. Gary Frick further indicates that land applying the stabilized sludge is a possibility. He is currently obtaining the necessary information to apply for a land application of sludge permit. Also, Mr. Frick is looking into the possiblity of taking the sludge to the HFI landfill in Sampson County near Roseboro, North Carolina. Although no permitted sludge solution has been finalized, various alternatives are being examined, and a final solution should be determined within the next six months. a. If residuals are being land applied, please specify DEM Permit No. NA,. Residual Contractor - N/A Telephone No. N/A ` Staff Report and Recommendation Page 3 b. Residuals stabilization: PSRP x PFRP Other C. Landfill: Moore County d. Other disposal/utilization scheme (Specify): Pilot study for composting. 3. Treatment plant classification (attach completed rating sheet): Grade IV 4. SIC Code(s): Primary $?,I Secondary 55 57 Main Treatment Unit Code: T 1 V0 1— PART III - OTeMI PERTIMM INP'OERMATION 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: N/A 3. Important SOC, JOC, or Compliance Schedule dates (please indicate): N/A Date Submission of Plans and Specifications . . . . . . . . N/A Begin Construction . . . . . . . . . . . . . . . . . N/A Complete Construction . . . . . . . . . . . . . . . . N/A 4. Alternative Analysis Evaluation: Has the facility evaluated all of the nondischarge options available. Please provide regional perspective for each option evaluated. Spray Irrigation: N/A Connection to Regional Sewer System: N/A Subsurface: N/A Other disposal options: N/A 5. Other Special Items: N/A Staff Report and Recommendation Page 4 PART IV - $VALUATION AND RECOMMNDATION It is the recommendation of this office that permit application be processed and the appropriate permit issued. rigHitureCdf Report Preparer •M, &,. 0 wcv- Water Quality -Regional Supervisor 5 • �� • q� Date