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Home My WebLink AboutNC0020443_Renewal (Application)_20170616Water Resources ENVIRONMENTAL QUALITY June 19, 2017 Mr. Rhett B. White, Town Manager Town of Columbia PO Box 361 Columbia, NC 27925-0361 Subject: Permit Renewal Application No. NCO020443 Columbia WWTP Tyrrell County Dear Mr. White: ROY COOPER Governor MICHAEL S. REGAN Seci etai), S. JAY ZIMMERMAN Drrecroi The Water Quality Permitting Section acknowledges receipt of your permit application and supporting documentation received on June 16, 2017. The primary reviewer for this renewal application is Joe Corporon. The primary reviewer will review your application, and he will contact you if additional information is required to complete your permit renewal. Per G.S. 150B-3 your current permit does not expire until permit decision on the application is made. Continuation of the current permit is contingent on timely and sufficient application for renewal of the current permit. Please respond in a timely manner to requests for additional information necessary to complete the permit application. If you have any additional questions concerning renewal of the subject permit, please contact Joe Corporon at 919-807-6394 or Joe.Corporon@ncdenr.gov. Sincerely, ?Am %4*7d Wren Thedford Wastewater Branch cc: Central Files NPDES Washington Regional Office State of North Carolina I Environmental Quality I Water Resources 1617 Mail Service Center I Raleigh, North Carolina 27699-1617 919-807-6300 FACILITY NAME AND PERMIT NUMBER` PERMIT ACTION REQUESTED_ RIVER EASIN- Columbla WWTP, NCO020443 Renewal, Pasquota,nk River FORM 2A NPDES FORM 2A APPLICATION OVERVIEW NPDES`"' APPLICATION OVERVIEW Form ,2A has been developed in a modular format and consists of a "Basic Application ,Information" packet and a "Supplemental Application Information" packet. The Basic Application Information packet is divided into two parts. All applicants must complete Parts A and C. ,Applicants with a design flow greater than or equal to 0.1 mgd must also complete Part B. Some applicants must also complete the SupplementalN�EQ� Application Information The following items explain which of Form '2A packet. parts you BASIC APPLICATION INFORMATION-., JON A, Basic Application Information for all Applicants. All applicants must complete questions A 1 through .A-8 A tte60?gWf 811ty that discharges effluent to surface waters of the United States mLIst also answer questions A 9 through A '12 Qermittmct B'. Additional Application Information for Applicants with a Design Flow >_ 0.1 mgd., All'treatment works that have design flows greater than or equal to 0.1 million galtons per day must complete questions B 1 through 6,6. G, Certification, All applicants must complete Part C (Cerfification.). SUPPLEMENTAL APPLICATION INFORMATION- D. Expanded Effluent Testing Data, A treatment works that discharges effluent to surface waters of the United States and meets one or more of the following criteria must complete Part D (Expanded Effluent Testing Data) 1, Has a design flow rate greater than or equal to 1 mgd, 2 Is required to have a pretreatment program (or has one in place), or 3 Is otherwise required by the ,permitting authority to provide the information E. Toxicity'Testfog Data. A treatment works that meets one or more of the following criteria must complete Part E (Toxicity Testing Data)'. 1 Has a design flow rate greater than or equal to 1 mgd, 2, Is required to have a pretreatment program ('or has one in place), or 3 Is otherwise required by the permitting authority to submit results of toxicity testing F Industrial User Discharges and RCRA/CERCLA Wastes., A treatment works that accepts process wastewater from any significant' industrial users (SIUs) or receives RCRA or CERCLA wastes must complete Part F (Industrial User Discharges and RCRA/CERCLA Wastes) 'SIUs are defined as 1, All industrial users subject to Categorical Pretreatment Standards under 40 Code of Federal,Regulat(ons (CFR) 403 6 and 40 CFR Chapter, 1, Subchapter N (see instructions), and 2. Any other industrial user that` `a,. Discharges an average of 25,000 gallons per day or,more of process wastewater to the treatment works (with certain exclusions), or b Gontribu"tes a process wastestream that makes up 5 percent or more of the average dry_ weather hydraulic or organic capacity of the treatment plant; or c Is designated as an SIU by the control authority. G, Combined Sewer Systems, A treatment works that ,has a combined sewer system must complete Part G (Combined Sewer Systems) ALL APPLICANTS MUST COMPLETE PART C (CERTIFICATION) EPA Form 3510-2A (Rev 1-99) Replaces EPA forms 7550-6 & 7550-22 Page f, of `22 MR on FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN: Columbia WWTP, NCO020443 Renewal Pasquotank River BASIC APPLICATION INFORMATION PART A. BASIC APPLICATION INFORMATION FOR ALL APPLICANTS: w All treatment works must complete questions AA through A.8 of this Basic Application Information Packet A.I. Facility Information. Facility Name Columbia Wastewater Treatment Plant Mailing Address P O Box 361 Columbia, NC 27925 Contact Person Rhett White Title Town Manager Telephone Number (252) 796-2781 Facility Address 604 N Road St Ext (not P O Box) Columbia, NC 27925 A.2. Applicant Information. If the applicant is different from the above, provide the following - Applicant Name Town of Columbia Mailing Address P O Box 361 Columbia, NC 27925 Contact Person Rhett White Title Town Manager Telephone Number (252) 796-2781 Is the applicant the owner or operator (or both) of the treatment works? ® owner ® operator Indicate whether correspondence regarding this permit should be directed to the facility or the applicant ❑ facility ® applicant A.3. Existing Environmental Permits. Provide the permit number of any existing environmental permits that have been issued to the treatment works (include state -issued permits). NPDES NCO020443 PSD UIC Other RCRA Other A.4. Collection System Information. Provide information on municipalities and areas served by the facility. Provide the name and population of each entity and, of known, provide information on the type of collection system (combined vs separate) and its ownership (municipal, private, etc.) Name Population Served Type of Collection System Ownership Columbia Collections System 850 Separate Town of Columbia Total population served 850 EPA Form 3510-2A (Rev 1-99) Replaces EPA fors 7550-6 & 7550-22 Page 2 of 22 FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN: Columbia WVVTP, NCO020443 I Renewal I Pasquotank River A.S. Indian Country. a Is the treatment works located in Indian Country? ❑ Yes ® No b Does the treatment works discharge to a receiving water that is either in Indian Country or that is upstream from (and eventually flows through) Indian Country? ❑ Yes ® No A.6. Flow. Indicate the design flow rate of the treatment plant (r e, the wastewater flow rate that the plant was built to handle) Also provide the average daily flow rate and maximum daily flow rate for each of the last three years. Each year's data must be based on a 12 -month time period with the 12'^ month of "this year" occurring no more than three months prior to this application submittal a Design flow rate 600 mgd Two Years Ago Last Year b Annual average daily flow rate .272 .298 .229 This Year C. Maximum daily flow rate 831 .802 .622 A.7. Collection System. Indicate the type(s) of collection system(s) used by the treatment plant Check all that apply Also estimate the percent contribution (by miles) of each ® Separate sanitary sewer 100 % ❑ Combined storm and sanitary sewer % A.8. Discharges and Other Disposal Methods. a. Does the treatment works discharge effluent to waters of the U.S.? ® Yes ❑ No If yes, list how many of each of the following types of discharge points the treatment works uses: i. Discharges of treated effluent 1 ii. Discharges of untreated or partially treated effluent 0 ilr Combined sewer overflow points 0 IV Constructed emergency overflows (prior to the headworks) 0 V Other 0 b Does the treatment works discharge effluent to basins, ponds, or other surface impoundments that do not have outlets for discharge to waters of the U.S.? ❑ Yes ® No If yes, provide the following for each surface impoundment Locabon Annual average daily volume discharge to surface impoundment(s) mgd Is discharge ❑ continuous or ❑ intermittent? c Does the treatment works land -apply treated wastewater? ❑ Yes ® No If yes, provide the following for each land application site* Location, Number of acres Annual average daily volume applied to site mgd Is land application ❑ continuous or ❑ intermittent? d. Does the treatment works discharge or transport treated or untreated wastewater to another treatment works? ❑ Yes ® No EPA Form 3510-2A (Rev 1-99) Replaces EPA forms 7550-6 8 7550-22. Page 3 of 22 FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN: Columbia WWTP, NCO020443 Renewal Pasquotank River If yes, describe the mean(s) by which the wastewater from the treatment works is discharged or transported to the other treatment works (e g , tank truck, pipe) e. If transport is by a party other than the applicant, provide. Transporter Name Mailing Address Contact Person Title Telephone Number For each treatment works that receives this discharge, provide the following - Name Mailing Address Contact Person Title Telephone Number If known, provide the NPDES permit number of the treatment works that receives this discharge Provide the average daily flow rate from the treatment works into the receiving facility. _ Does the treatment works discharge or dispose of its wastewater in a manner not included in A 8 through A 8 d above (e g , underground percolation, well iryechon) If yes, provide the following for each disposal method. Description of method (including location and size of site(s) if applicable) Annual daily volume disposed by this method - Is disposal through this method ❑ continuous or ❑ intermittent? mgd ❑ Yes ® No EPA Form 3510-2A (Rev 1-99) Replaces EPA forms 7550-6 & 7550-22 Page 4 of 22 FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN: Columbia WWTP, NCO020443 I Renewal I Pasquotank River WASTEWATER DISCHARGES: If you answered "Yes" to question A.&a, complete questions A.9 through A.12 once for each outfall (including bypass points) through which effluent Is discharged. Do not Include information on combined sewer overflows In this section. if you answered "No" to question A.8.a. go to Part B. "Additional Application Information for Applicants with a Design Flow Greater than or Equal to 0.1 mgd." A.$. Description of Outfall. a Outfall number 001 b. Location Columbia 27925 (City or town, if applicable) (Zip Code) Tyrrell NC (County) (State) 35°55'11" 76°15'24" (Latitude) (Longitude) C. Distance from shore (d applicable) 100ft ft d. Depth below surface (if applicable) loft ft. e. Average daily flow rate 280 mgd f Does this outfall have either an intermittent or a periodic discharge? ® Yes ❑ No (go to A 9.g ) If yes, provide the following information. Number f times per year discharge occurs- 13200 Average duration of each discharge- 10 min Average flow per discharge- 7000 gal mgd Months in which discharge occurs: All g Is outfall equipped with a diffuser*7 ® Yes ❑ No A.10. Description of Receiving Waters. a Name of receiving water Scuppernong River b Name of watershed (if known) United States Soil Conservation Service 14 -digit watershed code (if known): c Name of State Management/River Basin (if known) Pasquotank United States Geological Survey 8 -digit hydrologic cataloging unit code (if known): d. Critical low flow of receiving stream (if applicable) acute cis chronic e. Total hardness of receiving stream at critical low flow (if applicable) cis mgll of CaCO3 EPA Form 3510-2A (Rev 1-99) Replaces EPA fortes 7550.6 6 7550-22 Page 5 of 22 FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN: Columbia WWTP, NCO020443 Renewal Pasquotank River A.11. Description of Treatment a what levet of treatment are provided? Check all that apply ® Primary ❑ Secondary ❑ Advanced ❑ Other Describe b Indicate the following removal rates (as applicable) Design BOD5 removal or Design CBOD5 removal 99 Design SS removal 97 % Design P removal NA % Design N removal NA Other % c What type of disinfection is used for the effluent from this outfall? If disinfection vanes by season, please describe Sodium Hvpochlonte If disinfection is by chlorination is dechionnation used for this outfall? ® Yes ❑ No Does the treatment plant have post aeration? ® Yes ❑ No A.12. Effluent Testing Information. All Applicants that discharge to waters of the US must provide effluent testing data for the following parameters. Provide the indicated effluent testing required by the permitting authority for each outfall through which effluent is discharged. Do not Include Information on combined sewer overflows In this section. All information reported must be based on data collected through analysis conducted using 40 CFR Part 136 methods. In addition, this data must comply with QAIQC requirements of 40 CFR Part 136 and other appropriate QAlQC requirements for standard methods for analytes not addressed by 40 CFR Part 136. At a minimum, effluent testing data must be based on at least three samples and must be no more than four and one-half years apart Outfall number 001 MAXIMUM DAILY VALUE AVERAGE DAILY VALUE PARAMETER Value Units Value Units Number of Samples pH (Minimum) 7.1 s u pH (Ma)amum) 7.6 s u Flow Rate .502 mgd .280 m d 365 Temperature (Winter) 16 °C 12 °C 60 Temperature (Summer) 29 °C 25 °C 60 • For pH please report a minimum and a maiamum daily value MAXIMUM DAILY AVERAGE DAILY DISCHARGE POLLUTANT DISCHARGE ANALYTICAL ML/MDL Cone. Units Conc. Units Number of METHOD Samples CONVENTIONAL AND NON CONVENTIONAL COMPOUNDS BIOCHEMICAL OXYGEN 6005 13 m /l 1.64 Mg/1 156 C0310 7/10.5 DEMAND (Report one) CBOD5 FECAL COLIFORM 2420 Cfu/100 13.4 dull 00 156 61211 35/276 Ml ml TOTAL SUSPENDED SOLIDS (TSS) 284 m /I 6.4 1 mg/1 156 Co530 30/45 END OF PART A. REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH OTHER PARTS OF FORM 2A YOU MUST COMPLETE EPA Form 3510-2A (Rev 1-99) Replaces EPA forms 7550-6 & 7550-22 Page 6 of 22 FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN: Columbia WIMP, NCO020443 Renewal Pasquotank River BASIC APPLICATION INFORMATION PART B. ADDITIONAL APPLICATION INFORMATION FOR APPLICANTS WITH A DESIGN FLOW GREATER THAN OR EQUAL TO 0.1 MGD (100,000 gallons per day). All applicants with a design flow rate z 0.1 mgd must answer questions B.1 through B.S. All others go to Part C (Certification). B.I. Inflow and Infiltration. Estimate the average number of gallons per day that flow into the treatment works from inflow and/or infiltration 25000 gpd Briefly explain any steps underway or planned to minimize inflow and infiltration. Planned -gravity main and manhole replacement N Road St B.2. Topographic Map. Attach to this application a topographic map of the area extending at least one mile beyond facility property boundaries. This map must show the outline of the facility and the following information. (You may submit more than one map d one map does not show the entire area ) a. The area surrounding the treatment plant, including all unit processes. b The major pipes or other structures through which wastewater enters the treatment works and the pipes or other structures through which treated wastewater is discharged from the treatment plant Include outfalls from bypass piping, d applicable c Each well where wastewater from the treatment plant is injected underground d. wells, springs, other surface water bodies, and drinking water wells that are. 1) within % mile of the property boundaries of the treatment works, and 2) listed in public record or otherwise known to the applicant e Any areas where the sewage sludge produced by the treatment works is stored, treated, or disposed f. If the treatment works receives waste that Is classified as hazardous under the Resource Conservation and Recovery Act (RCRA) by truck, rad, or special pipe, show on the map where the hazardous waste enters the treatment works and where it is treated, stored, and/or disposed B.3. Process Flow Diagram or Schematic. Provide a diagram showing the processes of the treatment plant, including all bypass piping and all backup power sources or redunancy in the system. Also provide a water balance showing all treatment units, including disinfection (e g , chlorination and dechlonnation). The water balance must show daily average flow rates at influent and discharge points and approximate daily flow rates between treatment units Include a brief narrative description of the diagram B.4. Operatlon/Malntenance Performed by Contractor(a). Are any operational or maintenance aspects (related to wastewater treatment and effluent quality) of the treatment works the responsibility of a contractor? ® Yes ❑ No If yes, list the name, address, telephone number, and status of each contractor and describe the contractor's responsibilities (attach additional pages if necessary) Name Standby Systems Inc Mailing Address P O Box 1192 Chesterfield, VA 23832 Telephone Number. (804) 751-0494 Responsibilities of Contractor Bi -annual testing and maintenance of all generators B.S. Scheduled Improvements and Schedules of Implementation. Provide information on any uncompleted implementation schedule or uncompleted plans for improvements that will affect the wastewater treatment, effluent quality, or design capacity of the treatment works If the treatment works has several different implementation schedules or is planning several improvements, submit separate responses to question B 5 for each (If none, go to question B 6.) a List the outfall number (assigned in question A.9) for each outfall that is covered by this implementation schedule. 001 b Indicate whether the planned improvements or implementation schedule are required by local, State, or Federal agencies. ❑ Yes ® No EPA Forth 3510.2A (Rev 1-99) Replaces EPA forms 7550-6 & 7550-22 Page 7 of 22 FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN. Columbia WVVTP, NCO020443 Renewal Pasquotank River c If the answer to B.5 b is "Yes," briefly describe, including new maximum daily inflow rate (if applicable). d Provide dates imposed by any compliance schedule or any actual dates of completion for the implementation steps listed below, as applicable For improvements planned independently of local, State, or Federal agencies, indicate planned or actual completion dates, as applicable Indicate dates as accurately as possible Schedule Actual Completion Implementation Stage MM/DD/YYYY MM/DD/YYYY - Begin Construction - End Construction - Begin Discharge - Attain Operational Level / / e Have appropriate pennrts/clearances concerning other Federal/State requirements been obtained? ❑ Yes ❑ No Describe briefly B.G. EFFLUENT TESTING DATA (GREATER THAN 0.1 MGD ONLY). Applicants that discharge to waters of the US must provide effluent testing data for the following parameters. Provide the indicated effluent testing required by the permitting authority for each outfall through which effluent is discharged. Do not Include Information on combine sewer overflows In this section. All Information reported must be based on data collected through analysis conducted using 40 CFR Part 136 methods. In addition, this data must comply with QA/QC requirements of 40 CFR Part 136 and other appropriate QA/QC requirements for standard methods for analytes not addressed by 40 CFR Part 136. At a minimum effluent testing data must be based on at least three pollutant scans and must be no more than four and on -half years old. Outfall Number 001 MAXIMUM DAILY AVERAGE DAILY DISCHARGE DISCHARGE ANALYTICAL POLLUTANT METHOD ML/MDLConc. Units Conc. Units Number of Samples CONVENTIONAL AND NON CONVENTIONAL COMPOUNDS AMMONIA (as N) 1 mg/I 33 mg/I 156 C0610 CHLORINE (TOTAL 22 ppb 16 ppb 156 50060 RESIDUAL, TRC) DISSOLVED OXYGEN 104 mg/I 8.7 mg/I 156 00300 TOTAL KJELDAHL 1.25 mg/I 92 mg/I 4 00625 NITROGEN (TKN) NITRATE PLUS NITRITE 3250 mg/I 22.59 mg/I 4 00630 NITROGEN OIL and GREASE PHOSPHORUS (Total) 3 mg/I 1.5 mg/I 4 C0665 TOTAL DISSOLVED SOLIDS (TDS) OTHER END OF PART R. REFER TO THE APPLICATION OVERVIEW (PAGE 9) TO DETERMINE WHICH OTHER PARTS OF FORM 2A YOU MUST COMPLETE EPA Form 3510-2A (Rev 1-99) Replaces EPA forms 7550-6 & 7550-22 Page 8 of 22 FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN: Columbia WWTP, iVCO020443 Renewal Pasquotank River BASIC APPLICATION INFORMATION PART C. CERTIFICATION All applicants must complete the Certification Section. Refer to Instructions to determine who Is an officer for the purposes of this certification. All applicants must complete all applicable sections of Form 2A, as explained in the Application Overview. Indicate below which parts of Form 2A you have completed and are submitting. By signing this certification statement, applicants confirm that they have reviewed Form 2A and have completed all sections that apply to the facility for which this application Is submitted. Indicate which parts of Form 2A you have completed and are submitting: ® Basic Application Information packet Supplemental Application Information packet ❑ Part D (Expanded Effluent Testing Data) ❑ Part E (Toxicity Testing. Biomonitonng Data) ❑ Part F (Industrial User Discharges and RCRA/CERCLA Wastes) ❑ Part G (Combined Sewer Systems) ALL APPLICANTS MUST COMPLETE THE FOLLOWING CERTIFICATION. I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted Based on my inquiry of the person or persons who manage the system or those persons directly responsible for gathering the information, the information is, to the best of my knowledge and belief, true, accurate, and complete I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations Name and official title Rhett B White Town Mana er Signature Telephone number (252) 796-2781 Date signed Upon request of the permitting authority, you m t Md any other information necessary to assure wastewater treatment practices at the treatment works or identify appropriate permitting requirements SEND COMPLETED FORMS TO: NCDENR/ DWQ Attn: NPDES Unit 1617 Mail Service Center Raleigh, North Carolina 27699-1617 EPA Forth 3510-2A (Rev 1-99) Replaces EPA fortes 7550-6 & 7550-22 Page 9 of 22 7C�' ��1 h� < i T -• },rt ;, J `kit ;'1,, �•�, 'r 'F4 tYl � ��r• ,�� fr' } i4j �3v,'i=P.v� - �.. �^,� = ` i�1 of •,�r > ' =� " _' �'`� �� * � '; rtN �.�Y�' i-..• -' , r �r � , ,. ��'< '!ri 'Sh A� a �. •i'" r �<�t�`!r ky � �h fir* r r r�:": d � �oils. aL � yM •'�++ '�'' . 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L'i ` �.�r.. ^}vy��v `t F h1 0. a..51c• pr ?�FF'i'_ i'ii�(r.' y.fi".,{'} �, �,C '�'�y� '�C - '"/ Ik • ff'*SS `j�iy5+ a ..�� Sr, Z s �� a �*.,- < i j 4 i• }q.J',' r f '.�' ?` Z X~.rCy� s/ c� 2 �' • • � r � j x a f °• �` r .Y �'"; ties �• t t -'e- � � � rl� r s Fi .10 ` i�. , `. .10 ` i�. , ;. ` ,✓jam �j < 1 f • SIE, >x +.. _ • w..c, ;� � ra. ' �`S• L :5. lei �� '�,.-' .. V °Y• •a f'p 'Y l ;. ` ,✓jam �j < 1 f • SIE, >x +.. _ • w..c, ;� � ra. ' �`S• L :5. lei �� '�,.-' .. Town of Columbia Influent Wastewater Treatment Plant Pastetiecater road St. Ext. Columbia, IVC -i Grit Removal 65,000 ga 1. Clarifier 375,000 gal. l \ Oxidation Ditch Returned Activated 65,000 gal. 65,000 gal. Clarifier Clarifier 375,000 ga 1. Oxidation Ditch 65,000 gal. Clarifier Return Activated Sludge 2 15hp Centrifuge Return Activated Sludge Pumps 2 50hp Verticle Turbine 2 5gph 12,000 gal. Effluent 300 kW Pumps Discharging To 4Feed Vdastewater Eimer en The Outfall Site Feed Holding Tank g � I?u�mps Generator Chlorinated Effluent Wastew, ater 65 kW Emergency Generator Town of Columbia Outfall Site 506 Green St. Columbia, NC � 11,500 gal. Past Aeration Basin 11,500 gal. Post Aeration Basin Calcium Thiosulfate Chemical Feed 10,000 gal. Calcium Thiosulfate Dechlorination Tank 2 2.5 gph Chemical ►ed Diaphram Pumps 2 20 hp Verticle Turbine Pumps Discharging To The Scuppernong River Dechlorinated Treated