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HomeMy WebLinkAboutNC0079057_Renewal Application_20170525Water Resources ENVIRONMENTAL OVALITY May 25, 2017 Mr. Kermit Skinner, Jr Town Mayor Town of Manteo PO Box 246 Manteo, NC 27954 Subject: Request for Expansion Application No. NCO079057 Manteo WWTP Dare County Dear Mr. Skinner: ROY COOPER Govern MICHAEL S. REGAN Secretary S. JAY ZIMMERMAN Director The Water Quality Permitting Section acknowledges receipt of your permit application and supporting documentation received on March 24, 2017. The primary reviewer for this renewal application is Julie Grzyb. The primary reviewer will review your application, and she will contact you if additional information is required to complete your permit renewal. Per G.S. 15OB-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 Julie at 919-807-6390 or Julie.Grzyb@ncdenr.gov. Sincerely, ?am 7&0va 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 r W4Vzn Water and Sewer Department May 19, 2017 RECEIVED/NCDEWWR NC DENR / DWQ/ NPDES MAY 2 42017 1617 Mail Service Center Water Quality Raleigh, NC 27699-1617 Permitting Section SUBJECT: REQUEST FOR NPDES PERMIT RENEWAL OF TOWN OF MANTEO WWTP PERMIT No. NCO079057 Manteo WWTP Dare County Please take this letter as the official request for the renewal of the Town's Wastewater Treatment Plant NPDES Permit. All applicable applicant information has been provided in this packet including this cover letter, the completed application form (EPA FORM 2A, Part A -C) and our sludge management plan for the facility. Also included are a map of Outfall 001 and process flow diagram of the WWTP. We have started our wet tests as required for renewal. The second species toxicity tests will be finished by August. Tests are scheduled for May 2017 through August 2017. Results will be provided as they are available. No physical changes have been made at the plant since the issuance of our last permit. I am requesting a reduction of monitoring to our NPDES permit from existing permit frequencies for the parameters BODS, TSS, NH3-N and enterococci to a 2/week minimum frequency. The Town of Manteo WWTP has met all of the criteria listed in guidance for approval for each of the requested parameters. No civil penalties have been issued in the last three years. No daily, weekly or monthly violations have occurred at the WWTP in the last three years. The WWTP and its employees are not under investigation or have committed criminal violations in the past five years. I have included sample results for the last three years for the requested parameters following this cover letter. Percentages of limit for all parameters are under the 50% criteria. There were two total BODS, TSS and NH3-N results over the 200% threshold for the last three years, under the limit -of 15. 1 There were two total Enterococci results over the 200% threshold for the last three years, under the limit of 20. A breakdown of averages and percentages are below: Three year arithmetic means: Parameter: Result: BODS (April — October) .499 mg/L BODS (November - March) .637 mg/L TSS 6.0 mg/L NH3-N (April — October) .001 mg/L NH3-N (November - March) .091 mg/L Three year geometric mean: Parameter: Result: Enterococci 2.6 / 100 mL Percent of limit: Parameter: Result: BODS (April — October) 2.4% BODS (November- March) 6.4% TSS 1.8% NH3-N (April — October) <1% NH3-N (November - March) 3.6% Enterococci 7.4% I am also requesting a reduction of monitoring for our instream sampling for Outfall 001. We currently sample 5 locations within Shallowbag bay as required by our permit once a week during the year and three times per week June, July, August and September. In order to sample, we must use a boat to get to each of the sample sites. At times during the summer, due to storms or maintenance requirements to the boat, we have found it difficult to meet that requirement. The summer months have become cumbersome on scheduling and staff as well as the fuel cost for maintaining that many days a week. Our results have all come back within normal ranges. Please consider reducing the summer requirement to once a week as is required for the remainder of the year. Sincerely, Josh O'Brien Utilities Superintendent Town of Manteo PO Box 246 Manteo, NC 27954 (252) 473-3513 (office) (252) 473-1811 (fax) obrien@townofmanteo.com 2 Town of Manteo WWTP, NC 0079057 NPDDES Sampling Results May 2014 through March 2017 Parameter: Sampling date: BODS TSS NH3-N Enterococci 04/01/14 <3 <2.5 <0.1 <1 04/02/14 <3 <2.5 <0.1 <1 04/03/14 <3 <2.5 <0.1 <1 04/08/14 <3 <2.5 <0.1 <1 04/09/14 <3 <2.5 <0.1 <1 04/10/14 <3 <2.5 <0.1 <1 04/15/14 <3 <2.5 <0.1 3 04/16/14 <3 <2.5 <0.1 <1 04/17/14 <3 <2.5 <0.1 <1 04/22/14 <3 <2.5 <0.1 <1 04/23/14 <3 <2.5 <0.1 2 04/24/14 <3 <2.5 <0.1 <1 04/30/14 <3 <2.5 <0.1 <1 05/01/14 <3 <2.5 <0.1 <1 05/02/14 <3 <2.5 <0.1 2 05/06/14 <3 <2.5 <0.1 <1 05/07/14 <3 <2.5 <0.1 <1 05/08/14 <3 <2.5 <0.1 <1 05/13/14 <3 <2.5 <0.1 <1 05/14/14 <3 <2.5 <0.1 <1 05/15/14 <3 <2.5 <0.1 <1 05/20/14 <3 <2.5 <0.1 3 05/21/14 <3 Q.5 <0.1 <1 05/22/14 <3 <2.5 <0.1 <1 05/27/14 <3 <2.5 <0.1 1 05/28/14 <3 <2.5 <0.1 2 05/29/14 <3 <2.5 <0.1 <1 06/03/14 <3 <2.5 <0.1 6 06/04/14 <3 <2.5 <0.1 2 06/05/14 <3 <2.5 <0.1 3 06/10/14 <3 <2.5 <0.1 24 06/11/14 3 <2.5 <0.1 7 06/12/14 3 <2.5 <0.1 10 06/17/14 <3 <2.5 <0.1 2 06/18/14 <3 <2.5 <0.1 7 06/19/14 <3 <2.5 <0.1 18 06/24/14 <3 <2.5 <0.1 14 06/25/14 <3 <2.5 <0.1 1 06/26/14 3 <2.5 <0.1 1 07/01/14 <3 <2.5 <0.1 3 07/02/14 <3 Q.5 <0.1 4 07/03/14 4 <2.5 <0.1 <1 PAGE 1 OF 12 Limits: Monthly 200% Limt Threshold BODS 5.0 mg/L 10.0 mg/L (Apr. -Oct.) BODS 10.0 mg/L 20.0 mg/L (Nov. - Mar.) TSS 30.0 mg/L 60.0 mg/L NH3-N 2.0 mg/L 4.0 mg/L (Apr. - Oct.) NH3-N 4.0 mg/L 8.0 mg/L (Nov. - Mar.) Enterococci 35 / 100 mL 70 / 100 mL (geo. mean) Town of Manteo WWTP, NC 0079057 NPDDES Sampling Results May 2014 through March 2017 Parameter: Sampling date BODS TSS NH3-N Enterococci 07/08/14 <3 <2.5 <0.1 1 07/09/14 <3 <2.5 <0.1 19 07/10/14 <3 <2.5 <0.1 5 07/15/14 <3 <2.5 <0.1 <1 07/16/14 <3 <2.5 <0.1 2 07/17/14 <3 <2.5 <0.1 9 07/22/14 <3 <2.5 <0.1 <1 07/23/14 <3 <2.5 <0.1 <1 07/24/14 <3 <2.5 <0.1 <1 07/29/14 <3 <2.5 <0.1 <1 07/30/14 3 <2.5 <0.1 <1 07/31/14 <3 <2.5 <0.1 1 08/05/14 <3 <2.5 <0.1 1 08/06/14 <3 <2.5 <0.1 3 08/07/14 <3 <2.5 <0.1 2 08/12/14 <3 <2.5 0.1 2 08/13/14 <3 <2.5 <0.1 5 08/14/14 <3 <2.5 <0.1 1 08/19/14 <2 <2.5 <0.1 2 08/20/14 <2 <2.5 <0.1 3 08/21/14 20 <2.5 <0.1 4 08/26/14 <3 <2.5 <0.1 1 08/27/14 <3 <2.5 <0.1 30 08/28/14 <3 <2.5 <0.1 <1 09/02/14 <3 <2.5 <0.1 <1 09/03/14 <3 <2.5 <0.1 6 09/04/14 <3 <2.5 <0.1 2 09/09/14 <3 <2.5 <0.1 22 09/10/14 <3 <2.5 <0.1 69 09/11/14 <3 <2.5 <0.1 2 09/12/14 <3 <2.5 <0.1 <1 09/16/14 <3 <2.5 <0.1 2 09/17/14 <3 <2.5 <0.1 <1 09/18/14 <3 <2.5 <0.1 <1 09/23/14 <3 <2.5 <0.1 180 09/24/14 <3 <2.5 <0.1 15 09/25/14 <3 <2.5 <0.1 1 09/30/14 <3 <2.5 <0.1 <1 10/01/14 <3 <2.5 <0.1 <1 10/02/14 <3 <2.5 <0.1 <1 10/07/14 <3 <2.5 <0.1 2 10/08/14 <3 <2.5 <0.1 1 10/09/14 <3 <2.5 <0.1 2 Limits: Monthly 200% Limt Threshold BODS 5.0 mg/L 10.0 mg/L (Apr. - Oct.) BODS 10.0 mg/L 20.0 mg/L (Nov. - Mar.) TSS 30.0 mg/L 60.0 mg/L NH3-N 2.0 mg/L 4.0 mg/L (Apr. - Oct.) NH3-N 4.0 mg/L 8.0 mg/L (Nov. - Mar.) Enterococci 35 / 100 mL 70 / 100 mL (geo. mean) PAGE 2 OF12 Town of Manteo WWTP, NC 0079057 NPDDES Sampling Results May 2014 through March 2017 Parameter: Sampling date BODS TSS NH3-N Enterococci 10/14/14 <3 <2.5 <0.1 3 10/15/14 <3 <2.5 <0.1 <1 10/16/14 <5 <2.5 <0.1 <1 10/21/14 <3 <2.5 <0.1 1 10/22/14 <3 Q.5 <0.1 <1 10/23/14 <3 <2.5 <0.1 <1 10/28/14 <3 <2.5 <0.1 1 10/29/14 <3 <2.5 <0.1 <1 10/30/14 <3 <2.5 <0.1 1 11/04/14 <2.5 <2.5 <0.1 1 11/05/14 <2.5 <2.5 <0.1 <1 11/06/14 <2.5 <2.5 <0.1 3 11/11/14 <2 <2.6 <0.1 1 11/12/14 <2 <2.6 <0.1 <1 11/13/14 2 <2.6 <0.1 <1 11/18/14 <2 <2.8 <0.1 <1 11/19/14 <2 <2.7 0.1 <1 11/20/14 <2 <2.6 <0.1 <1 11/24/14 <3 <2.5 <0.1 <1 11/25/14 <3 <2.5 <0.1 <1 11/26/14 <3 <2.5 <0.1 4 12/02/14 <3 <2.5 <0.1 <1 12/03/14 <3 <2.5 <0.1 1 <1 12/04/14 <3 <2.5 <0.1 <1 12/09/14 <3 <2.5 <0.1 <1 12/10/14 <3 <2.5 <0.1 <1 12/11/14 <3 <2.5 <0.1 1 12/16/14 <3 <2.5 <0.1 <1 12/17/14 <3 <2.5 <0.1 <1 12/18/14 <3 <2.5 <0.1 <1 12/22/14 <3 <2.5 <0.1 <1 12/23/14 <3 <2.5 <0.1 <1 12/24/14 <3 <2.5 <0.1 <1 12/29/14 <3 <2.5 <0.1 <1 12/30/14 <3 <2.5 <0.1 <1 12/31/15 <3 <2.5 <0.1 5 01/06/15 <3 <2.5 <0.1 <1 01/07/15 <3 <2.5 <0.1 <1 01/08/15 <3 <2.5 <0.1 <1 01/13/15 <2 <2.5 <0.1 <1 01/14/15 <2 <2.5 <0.1 <1 01/15/15 <2 <2.5 <0.1 <1 PAGE 3OF12 Monthly 200% Limits: Limt Threshold BODS 5.0 mg/L 10.0 mg/L (Apr. - Oct.) BODS 10.0 mg/L 20.0 mg/L (Nov. - Mar.) TSS 30.0 mg/L 60.0 mg/L NH3-N 2.0 mg/L 4.0 mg/L (Apr. - Oct.) NH3-N 4.0 mg/L 8.0 mg/L (Nov. - Mar.) Enterococci 35 / 100 mL 70 / 100 mL (geo. mean) Town of Manteo WWTP, NC 0079057 NPDDES Sampling Results May 2014 through March 2017 Parameter: BODS TSS NH3-N Enterococci Sampling date 01/20/15 <2 <2.5 <0.1 <1 01/21/15 4 <2.5 <0.1 <1 01/22/15 <2 <2.5 <0.1 <1 01/27/15 <2 <2.5 <0.1 2 01/28/15 <2 <2.5 <0.1 <1 01/29/15 <2 <2.5 <0.1 <1 02/03/15 <2 <2.5 <0.1 <1 02/04/15 <2 <2.5 <0.1 <1 02/05/15 <2 <2.5 0.1 <1 02/10/15 5 <2.8 <0.1 <1 02/11/15 3 <2.8 <0.1 1 02/12/15 <2 <2.7 <0.1 <1 02/17/15 2 <2.5 <0.1 <1 02/18/15 <2 <2.5 <0.1 <1 02/19/15 7 <2.5 <0.1 <1 02/24/15 2 <2.5 0.2 <1 02/25/15 <2 <2.5 0.2 <1 02/26/15 <2 <2.5 0.2 <1 03/03/15 <2 <2.5 0.2 <1 03/04/15 <2 <2.5 0.2 1 03/05/15 2 <2.5 0.1 <1 03/10/15 <2 <2.5 0.1 <1 03/11/15 <2 <2.5 0.1 <1 03/12/15 <2 <2.5 <0.1 <1 03/17/15 <2 <2.5 <0.1 <1 03/18/15 <2 <2.5 <0.1 <1 03/19/15 <2 <2.5 <0.1 <1 03/24/15 <2 <2.5 <0.1 1 03/25/15 <2 <2.5 <0.1 <1 03/26/15 <2 <2.5 <0.1 <1 03/31/15 <2 <2.5 <0.1 <1 04/01/15 <2 <2.5 <0.1 <1 04/02/15 <2 <2.5 <0.1 <1 04/07/15 <2 <2.5 <0.1 <1 04/08/15 <2 <2.5 <0.1 <1 04/09/15 <2 1 <2.5 0.1 <1 04/14/15 2 <2.5 <0.1 3 04/15/15 <2 <2.5 <0.1 <1 04/16/15 <2 <2.5 <0.1 <1 04/21/15 2 <2.5 <0.1 1 04/22/15 2 <2.5 <0.1 1 04/23/15 <2 <2.5 1 <0.1 <1 PAGE 4 OF 12 Limits: Monthly 200% Limt Threshold BODS 5.0 mg/L 10.0 mg/L (Apr. - Oct.) BODS 10.0 mg/L 20.0 mg/L (Nov. - Mar.) TSS 30.0 mg/L 60.0 mg/L NH3-N 2.0 mg/L 4.0 mg/L (Apr. - Oct.) NH3-N 4.0 mg/L 8.0 mg/L (Nov. - Mar.) Enterococci 35 / 100 mL 70 / 100 mL (geo. mean) Town of Manteo WWTP, NC 0079057 NPDDES Sampling Results May 2014 through March 2017 Parameter: Sampling date BODS TSS INH3-N Enterococci 04/28/15 2 <2.5 <0.1 <1 04/29/15 <2 <2.5 <0.1 <1 04/30/15 <2 <2.5 <0.1 <1 05/05/15 2 <2.5 <0.1 <1 05/06/15 <2 <2.5 <0.1 2 05/07/15 <2 <2.5 <0.1 1 05/12/15 <2 <2.5 <0.1 3 05/13/15 <2 <2.5 <0.1 2 05/14/15 <2 <2.5 <0.1 <1 05/19/15 4 <2.5 <0.1 1 05/20/15 <2 <2.5 <0.1 <1 05/21/15 <2 <2.5 <0.1 <1 05/26/15 <2 <2.5 <0.1 <1 05/27/15 <2 <2.5 <0.1 1 05/28/15 <2 <2.5 <0.1 <1 06/02/15 <2 Q.5 <0.1 1 06/03/15 <2 <2.5 <0.1 8 06/04/15 <2 <2.5 <0.1 3 06/09/15 2 <2.6 <0.1 <1 06/10/15 <2 <2.7 <0.1 6 06/11/15 <2 <2.6 <0.1 6 06/16/15 2 <2.6 <0.1 1 06/17/15 2 <2.8 <0.1 5 06/18/15 <2 <2.6 <0.1 4 06/23/15 2 <2.5 <0.1 <1 06/24/15 <2 <2.5 <0.1 <1 06/25/15 <2 <2.5 <0.1 <1 06/30/15 2 <2.5 <0.1 <1 07/01/15 <2 <2.5 <0.1 <1 07/02/15 <2 <2.5 <0.1 3 07/07/15 3 <2.5 <0.1 1 07/08/15 <2 <2.5 <0.1 48 07/09/15 <2 <2.5 <0.1 <1 07/14/15 <2 <2.5 <0.1 <1 07/15/15 <2 <2.5 <0.1 1 07/16/15 <2 <2.5 1 <0.1 1 07/21/15 2 <2.5 <0.1 <1 07/22/15 <2 <2.5 <0.1 9 07/23/15 <2 <2.5 <0.1 <1 07/28/15 2 <2.6 <0.1 <1 07/29/15 2 <2.6 <0.1 2 07/30/15 <2 <2.8 <0.1 20 PAGE 5 OF 12 Limits: Monthly 200% Limt Threshold BODS 5.0 mg/L 10.0 mg/L (Apr. - Oct.) BODS 10.0 mg/L 20.0 mg/L (Nov. - Mar.) TSS 30.0 mg/L 60.0 mg/L NH3-N 2.0 mg/L 4.0 mg/L (Apr. - Oct.) NH3-N 4.0 mg/L 8.0 mg/L (Nov. - Mar.) Enterococci 35 / 100 mL 70 / 100 mL (geo. mean) Town of Manteo WWTP, NC 0079057 NPDDES Sampling Results May 2014 through March 2017 Parameter: Sampling date BODS TSS NH3-N Enterococci 08/04/15 <2 <2.5 0.1 2 08/05/15 <2 Q.5 <0.1 3 08/06/15 <2 <2.5 <0.1 3 08/11/15 <2 <2.5 <0.1 1 08/12/15 <2 <2.5 <0.1 3 08/13/15 <2 <2.5 <0.1 <1 08/18/15 <2 <2.5 <0.1 <1 08/19/15 <2 <2.5 <0.1 1 08/20/15 <2 <2.5 <0.1 1 08/25/15 3 <2.6 <0.1 <1 08/26/15 <2 <2.7 <0.1 4 08/27/15 3 <2.7 <0.1 <1 09/01/15 <2 <2.5 0.1 <1 09/02/15 <2 <2.5 <0.1 <1 09/03/15 <2 <2.5 <0.1 <1 09/08/15 <2 <2.5 <0.1 <1 09/09/15 <2 <2.5 <0.1 <1 09/10/15 <2 <2.5 <0.1 <1 09/15/15 <2 <2.5 <0.2 <1 09/16/15 4 <2.5 <0.2 <1 09/17/15 <2 <2.5 <0.2 <1 09/22/15 <2 <2.5 <0.2 5 09/23/15 <2 <2.5 <0.2 2 09/24/15 <2 Q.5 <0.2 2 09/29/15 <2 <2.5 <0.2 <1 09/30/15 <2 <2.5 <0.2 <1 10/01/15 <2 <2.5 <0.2 <1 10/06/15 <2 <2.5 <0.2 1 10/07/15 <2 <2.5 <0.2 1 10/08/15 3 <2.5 <0.2 <1 10/13/15 <2 <2.5 <0.2 <1 10/14/15 2 <2.5 <0.2 <1 10/15/15 <2 <2.5 <0.2 <1 10/20/15 <2 <2.5 <0.2 <1 10/21/15 <2 <2.5 <0.2 <1 10/22/15 <2 <2.5 <0.2 1 10/27/15 <2 <2.5 <0.2 1 10/28/15 <2 <2.5 <0.2 1 10/29/15 <2 <2.5 <0.2 <1 11/03/15 <2 <2.5 <0.2 1 11/04/15 <2 <25 <0.2 14 11/05/15 2 <2.5 <0.2 2 PAGE 6OF12 Limits: Monthly 200% Limt Threshold BODS 5.0 mg/L 10.0 mg/L (Apr. - Oct.) BODS 10.0 mg/L 20.0 mg/L (Nov. - Mar.) TSS 30.0 mg/L 60.0 mg/L NH3-N 2.0 mg/L 4.0 mg/L (Apr. - Oct.) NH3-N 4.0 mg/L 8.0 mg/L (Nov. - Mar.) Enterococci 35 / 100 mL 70 / 100 mL (geo. mean) Town of Manteo WWTP, NC 0079057 NPDDES Sampling Results May 2014 through March 2017 Parameter: Sampling date BODS TSS NH3-N Enterococci 11/10/15 4 <2.5 <0.2 1 11/11/15 <2 <2.5 <0.2 <1 11/12/15 <2 <2.5 <0.2 <1 11/17/15 <2 <2.6 <0.2 2 11/18/15 <2 <2.6 <0.2 7 11/19/15 <2 <2.7 <0.2 14 11/23/15 <2 <2.5 <0.2 3 11/24/15 <2 <2.5 <0.2 2 11/25/15 <2 <2.5 <0.2 3 12/01/15 <2 <2.5 <0.2 <1 12/02/15 <2 <2.5 0.7 <1 12/03/15 <2 <2.5 <0.2 <1 12/08/15 <2 <2.5 <0.2 <1 12/09/15 <2 <2.5 <0.2 <1 12/10/15 <2 <2.5 <0.2 <1 12/15/15 <2 <2.5 <0.2 <1 12/16/15 <2 6 <0.2 <1 12/17/15 <2 <2.5 <0.2 <1 12/21/15 <2 <2.5 <0.2 <1 12/22/15 <2 <2.5 <0.2 <1 12/23/15 <2 <2.5 <0.1 <1 12/28/15 <2 <2.5 <0.1 <1 12/29/15 <2 <2.5 <0.2 <1 12/30/15 <2 <2.5 <0.2 <1 01/05/16 <2 <2.5 <0.2 <1 01/06/16 <2 <2.5 <0.2 <1 01/07/16 <2 <2.5 <0.2 <1 01/12/16 <2 <2.5 <0.2 <1 01/13/16 3 <2.5 <0.2 <1 01/14/16 <2 <2.5 <0.2 <1 01/19/16 <2 <2.5 <0.2 <1 01/20/16 2 <2.5 <0.2 <1 01/21/16 <2 <2.5 <0.2 1 01/26/16 <2 <2.5 <0.2 <1 01/27/16 <2 <2.5 <0.2 <1 01/28/16 2 <2.5 <0.2 <1 02/02/16 <2 <2.5 <0.2 1 02/03/16 <2 Q.5 <0.2 2 02/04/16 <2 <2.5 <0.2 1 02/09/16 3 <2.5 <0.2 <1 02/10/16 2 <2.5 <0.2 <1 02/11/16 <2 <2.5 <0.2 <1 PAGE 7OF12 Limits: Monthly 200% Limt Threshold BODS 5.0 mg/L 10.0 mg/L (Apr. - Oct.) BODS 10.0 mg/L 20.0 mg/L (Nov. - Mar.) TSS 30.0 mg/L 60.0 mg/L NH3-N 2.0 mg/L 4.0 mg/L (Apr. - Oct.) NH3-N 4.0 mg/L 8.0 mg/L (Nov. - Mar.) Enterococci 35 / 100 mL 70 / 100 mL (geo. mean) Town of Manteo WWTP, NC 0079057 NPDDES Sampling Results May 2014 through March 2017 Parameter: Sampling date BODS TSS NH3-N Enterococci 02/16/16 <2 <2.5 <0.2 1 02/17/16 <2 <2.5 0.5 <1 02/18/16 <2 <2.5 0.7 <1 02/23/16 <2 <2.5 <0.2 <1 02/24/16 <2 <2.5 <0.2 2 02/25/16 <2 <2.5 <0.2 1 03/01/16 5 <2.5 <0.2 6 03/02/16 <2 <2.5 <0.2 8 03/03/16 <2 <2.5 <0.2 <1 03/08/16 <2 <2.5 <0.2 <1 03/09/16 <2 <2.5 <0.2 1 03/10/16 2 <2.5 <0.2 3 03/15/16 3 <2.6 <0.2 2 03/16/16 <2 <2.7 1.3 2 03/17/16 2 <2.8 <0.2 <1 03/22/16 <2 <2.7 <0.2 <1 03/23/16 <2 <2.8 10.9 <1 03/24/16 2 <2.7 <0.2 <1 03/29/16 <2 <2.7 <0.2 <1 03/30/16 2 <2.7 <0.2 <1 03/31/16 2 <2.7 0.4 2 04/05/16 <2 <2.5 <0.2 3 04/06/16 <2 <2.5 <0.2 2 04/07/16 2 <2.5 <0.2 19 04/12/16 <2 <2.6 <0.2 <1 04/13/16 8 <2.6 <0.2 5 04/14/16 4 <2.7 <0.2 12 04/19/16 <2 <2.6 <0.2 1 04/20/16 <2 <2.6 <0.2 9 04/21/16 2 <2.7 <0.2 3 04/26/16 <2 <2.6 <0.2 3 04/27/16 <2 <2.7 <0.2 <1 04/28/16 <2 <2.6 <0.2 4 05/03/16 <2 <2.5 <0.2 5 05/04/16 <2 <2.5 <0.2 <1 05/05/16 2 <2.5 <0.2 <1 05/10/16 <2 <2.5 <0.2 4 05/11/16 <2 <2.5 <0.2 <1 05/12/16 <2 <2.5 <0.2 4 05/17/16 <2 <2.5 <0.2 1 05/18/16 <2 <2.5 <0.2 <1 05/19/16 2 <2.5 <0.2 <1 PAGE 8 OF 12 Limits: Monthly 200% Limt Threshold BODS 5.0 mg/L 10.0 mg/L (Apr. - Oct.) BODS 10.0 mg/L 20.0 mg/L (Nov. - Mar.) TSS 30.0 mg/L 60.0 mg/L NH3-N 2.0 mg/L 4.0 mg/L (Apr. - Oct.) NH3-N 4.0 mg/L 8.0 mg/L (Nov. - Mar.) Enterococci 35 / 100 mL 70 / 100 mL (geo. mean) Town of Manteo WWTP, NC 0079057 NPDDES Sampling Results May 2014 through March 2017 Parameter: Sampling date BODS TSS NH3-N Enterococci 05/24/16 2.6 <2.5 <0.2 <1 05/25/16 <2 1 <2.5 <0.2 1 05/26/16 <2 <2.5 <0.2 3 05/31/16 <2 <2.5 <0.2 78 06/01/16 2 <2.8 <0.2 2 06/02/16 2 <2.6 <0.2 7 06/07/16 <2 <2.5 <0.2 7 06/08/16 <2 <2.5 <0.2 <1 06/09/16 <2 <2.5 <0.2 <1 06/14/16 <2 <2.5 <0.2 <1 06/15/16 <2 Q.5 <0.2 <1 06/16/16 4 <2.5 <0.2 <1 06/21/16 <2 <2.5 <0.2 <1 06/22/16 <2 <2.5 <0.2 1 06/23/16 3 <2.5 <0.2 <1 06/28/16 <2 <2.5 <0.2 <1 06/29/16 <2 <2.5 <0.2 3 06/30/16 <2 <2.5 <0.2 2 07/05/16 2 <2.5 <0.2 3 07/06/16 <2 <2.5 <0.2 <1 07/07/16 <2 <2.5 <0.2 5 07/12/16 <2 <2.5 <0.2 <1 07/13/16 <2 <2.5 <0.2 <1 07/14/16 3 <2.5 <0.2 2 07/19/16 3 <2.5 <0.2 2 07/20/16 2 <2.5 <0.2 1 07/21/16 2 <2.5 <0.2 <1 07/26/16 <2 <2.5 <0.2 1 07/27/16 <2 <2.5 <0.2 20 07/28/16 <2 <2.5 <0.2 1 08/02/16 <2 <2.6 <0.2 1 08/03/16 <2 <2.6 <0.2 1 08/04/16 <2 <2.6 <0.2 <1 08/08/16 <2 <2.5 <0.2 2 08/10/16 <2 <2.5 <0.2 7 08/11/16 <2 <2.5 <0.2 1 08/16/16 2 <2.5 <0.2 1 08/17/16 <2 <2.5 <0.2 1 08/18/16 <2 <2.5 <0.2 <1 08/23/16 2 <2.5 <0.2 14 08/24/16 <2 <2.5 <0.2 5 08/25/16 <2 <2.5 <0.2 3 PAGE 9OF12 Limits: Monthly 200% Limt Threshold BODS 5.0 mg/L 10.0 mg/L (Apr. -Qct.) BODS 10.0 mg/L 20.0 mg/L (Nov. - Mar.) TSS 30.0 mg/L 60.0 mg/L NH3-N 2.0 mg/L 4.0 mg/L (Apr. - Oct._) NH3-N 4.0 mg/L 8.0 mg/L (Nov. - Mar.) Enterococci 35 / 100 mL 70 / 100 mL (geo. mean) Town of Manteo WWTP, NC 0079057 NPDDES Sampling Results May 2014 through March 2017 Parameter: Sampling date BODS TSS NH3-N Enterococci 08/30/16 <2 <2.5 <0.2 4 08/31/16 <2 <2.5 <0.2 2 09/01/16 <2 <2.6 <0.2 4 09/06/16 <2 <2.5 <0.2 2 09/07/16 <2 <2.5 <0.2 2 09/08/16 <2 <2.5 <0.2 2 09/13/16 <2 <2.5 <0.2 1 09/14/16 <2 <2.5 <0.2 6 09/15/16 <2 <2.5 <0.2 2 09/20/16 <2 <2.5 <0.2 13 09/21/16 <2 <2.5 <0.2 13 09/22/16 <2 <2.5 <0.2 2 09/27/16 <2 <2.5 <0.2 <1 09/28/16 <2 <2.5 <0.2 <1 09/29/16 <2 <2.5 <0.2 <1 10/04/16 <2 <2.5 <0.2 <1 10/05/16 <2 <2.5 <0.2 <1 10/06/16 3 <2.5 <0.2 1 10/12/16 2 <2.5 <0.2 1 10/13/16 <2 <2.5 <0.2 5 10/14/16 <2 <2.5 <0.2 2 10/18/16 <2 <2.5 <0.2 2 10/19/16 <2 <2.5 <0.2 1 10/20/16 <2 <2.5 <0.2 <1 10/25/16 <2 <2.5 <0.2 <1 10/26/16 <2 <2.5 <0.2 1 10/27/16 <2 <2.5 <0.2 <1 11/01/16 <2 <2.5 <0.2 <1 11/02/16 <2 <2.5 <0.2 <1 11/03/16 <2 <2.5 <0.2 <1 11/08/16 3 <2.5 <0.2 <1 11/09/16 <2 <2.5 <0.2 <1 11/10/16 2 <2.5 <0.2 <1 11/15/16 <2 <2.5 <0.2 <1 11/16/16 <2 <2.5 <0.2 <1 11/17/16 2 <2.5 <0.2 <1 11/21/16 <2 <2.5 <0.2 <1 11/22/16 <2 <2.5 <0.2 <1 11/23/16 <2 <2.5 <0.2 6 11/29/16 3 <2.5 <0.2 <1 11/30/16 2 <2.5 <0.2 <1 12/01/16 2 <25 <0.2 <1 PAGE 10 OF 12 Limits: Monthly 200% Limt Threshold BODS 5.0 mg/L 10.0 mg/L (Apr. - Oct.) BODS 10.0 mg/L 20.0 mg/L (Nov. - Mar.) TSS 30.0 mg/L 60.0 mg/L NH3-N 2.0 mg/L 4.0 mg/L (Apr. - Oct.) NH3-N 4.0 mg/L 8.0 mg/L (Nov. -Mar.) Enterococci 35 / 100 mL 70 / 100 mL (geo. mean) Town of Manteo WWTP, NC 0079057 NPDDES Sampling Results May 2014 through March 2017 Parameter: Sampling date BODS TSS NH3-N Enterococci 12/06/16 3 <2.5 <0.2 <1 12/07/16 3 <2.5 <0.2 <1 12/08/16 3 <2.5 <0.2 <1 12/13/16 2 <2.5 <0.2 <1 12/14/16 2 <2.5 <0.2 <1 12/15/16 <2 <2.5 <0.2 <1 12/20/16 4 <2.5 <0.2 1 12/21/16 2- <2.5 <0.2 <1 12/22/16 2 <2.5 1.1 <1 12/27/16 2 <2.5 <0.2 <1 12/28/16 3 <2.5 <0.2 <1 12/29/16 <2 <2.5 <0.2 1 01/03/17 <2 <2.5 <0.2 <1 01/04/17 <2 <2.5 0.2 <1 01/05/17 <2 <2.5 0.2 <1 01/10/17 <2 <2.5 <0.2 <1 01/11/17 <2 <2.5 <0.1 2 01/12/17 <2 <2.5 <0.1 <1 01/17/17 <2 <2.5 <0.2 1 01/18/17 <2 <2.5 <0.1 1 01/19/17 <2 <2.5 <0.1 <1 01/24/17 <2 <2.5 <0.2 <1 01/25/17 <2 <2.5 <0.2 <1 01/26/17 <2 <2.5 <0.2 <1 01/31/17 2 <2.5 <0.2 <1 02/01/17 <2 <2.5 <0.2 <1 02/02/17 <2 <2.5 <0.2 <1 02/07/17 <2 <2.5 <0.2 <1 02/08/17 2 <2.5 <0.2 <1 02/09/17 2 <2.5 <0.2 1 02/14/17 3 <2.5 <0.2 1 <1 02/15/17 5 <2.5 <0.2 <1 02/16/17 <2 <2.5 <0.2 <1 02/21/17 <2 <2.5 <0.2 <1 02/22/17 <2 <2.5 <0.2 <1 02/23/17 <2 - <2.5 <0.2 <1 02/28/17 <2 <2.5 <0.1 <1 03/01/17 <2 <2.5 <0.1 <1 03/02/17 <2 <2.5 <0.1 <1 03/07/17 <2 <2.5 <0.2 <1 03/08/17 2 <2.5 <0.1 <1 03/09/17 <2 <2.5 <0.1 <1 PAGE 11 OF 12 Limits: Monthly 200% Limt Threshold BODS 5.0 mg/L 10.0 mg/L (Apr. - Oct.) BODS 10.0 mg/L 20.0 mg/L (Nov. - Mar.) TSS 30.0 mg/L 60.0 mg/L NH3-N 2.0 mg/L 4.0 mg/L (Apr. - Oct.) NH3-N 4.0 mg/L 8.0 mg/L (Nov. - Mar.) Enterococci 35 / 100 mL 70 / 100 mL (geo. mean) Town of Manteo WWTP, NC 0079057 NPDDES Sampling Results May 2014 through March 2017 Parameter: Sampling date BODS TSS NH3-N Enterococci 03/14/17 <2 <2.5 <0.1 <1 03/15/17 <2 <2.5 <0.1 <1 03/16/17 2 <2.5 <0.1 <1 03/21/17 <2 <2.5 <0.2 <1 03/22/17 <2 <2.5 <0.1 1 03/23/17 <2 <2.5 <0.1 <1 03/28/17 <2 <2.5 <0.2 4 03/29/17 <2 <2.5 <0.1 1 03/30/17 2 <2.5 <0.1 <1 Parameter: BODS TSS NH3-N Enterococci Averages: 3 -year ar. Mean 5.0 mg/L 6.0 (Apr. - Oct.) 3 -year ar. Mean (Apr. - Oct.) 0.499 X 0.001 (Nov. - Mar.) 3 -year ar. Mean (Nov. - Mar.) 0.637 X 0.091 60.0 mg/L 3 -year geo. Mean 2.0 mg/L 4.0 mg/L (Apr. - Oct.) 2.6 % of limit (Apr. -Oct.) 2.4 X <0.1 (Nov. - Mar.) % of limit (Nov. - Mar.) 6.4 x 3.6 70 / 100 mL % of limit =1.8 7.4 PAGE 12 OF 12 Limits: Monthly 200% Limt Threshold BODS 5.0 mg/L 10.0 mg/L (Apr. - Oct.) BODS 10.0 mg/L 20.0 mg/L (Nov. - Mar.) TSS 30.0 mg/L 60.0 mg/L NH3-N 2.0 mg/L 4.0 mg/L (Apr. - Oct.) NH3-N 4.0 mg/L 8.0 mg/L (Nov. - Mar.) Enterococci 35 / 100 mL 70 / 100 mL (geo. mean) FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN: Town of Mantes WWTP, NCO079057 Renewal Pasquotank FORM.M. 2A PDES 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 Supplemental Application Information packet. The following items explain which parts of Form 2A you must complete. BASIC APPLICATION INFORMATION: A. Basic Application Information for all Applicants. All applicants must complete questions A.1 through A8. A treatment works that discharges effluent to surface waters of the United States must also answer questions A.9 through A.12. 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 gallons per day must complete questions B.1 through B.6. C. Certification. All applicants must complete Part C (Certification). 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 Testing 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 Regulations (CFR) 403.6 and 40 CFR Chapter I, 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. Contributes 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 1 of 22 FACILITY NAME AND PERMIT NUMBER: Town of Manteo VUWTP, NCO079057 BASIC APPLICATION INFORMATION PART A. BASIC APPLICATION INFORMATION FOR ALL APPLICANTS: All treatment works must complete questions A.1 through A.8 of this Basic Application Information Packet. A.I. Facility Information. Facility Name Town of Manteo WWTP Mailing Address PO Box 246 (not P.O. Box) Manteo. NC 27954 A.2. Applicant Information. If the applicant is different from the above, provide the following: Applicant Name Mailing Address Contact Person Title Telephone Number r i,. 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 NCO079057 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, if 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 Manteo Collection System Total population served 1540 EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 8 7550-22. Page 2 of 22 Manteo NC 27954 Contact Person Joshua O'Brien Title Utilities Suberintendent Telephone Number (252) 216-5314 Facility Address 710 6owsertown Rd. (not P.O. Box) Manteo. NC 27954 A.2. Applicant Information. If the applicant is different from the above, provide the following: Applicant Name Mailing Address Contact Person Title Telephone Number r i,. 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 NCO079057 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, if 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 Manteo Collection System Total population served 1540 EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 8 7550-22. Page 2 of 22 FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN: Town of Manteo WWTP, NCO079057 i 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.B. Flow. Indicate the design flow rate of the treatment plant (i.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 12th month of "this year" occurring no more than three months prior to this application submittal. a. Design flow rate mgd Two Years_Akq Last Year This Year b. Annual average daily flow rate .255 .242 C. Maximum daily flow rate .491 .636 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.B. Discharges and Other Disposal Methods. a. Does the treatment works discharge effluent to waters of the U.S.? 17 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 iii. Combined sewer overflow points iv. Constructed emergency overflows (prior to the headworks) V. Other 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 If yes, provide the following for each surface imaoundment: C. Location Annual average daily volume discharge to surface impoundment(s) Is discharge continuous or intermittent? Does the treatment works land -apply treated wastewater? If yes, provide the following for each land application site: Location: Number of acres: No mgd Yes ® No 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 & 7550-22. Page 3 of 22 FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN: Town of Manteo WWTP, N00079057 Renewal Paaqulotank 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 i 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 A8. through A.8.d above (e.g., underground percolation, well injection): 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. 1-98). Replaces EPA forms 7550-6 & 7550-22. Page 4 of 22 FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN: Town of Manteo I VVTP, NCO079057 Renewal Pasquotank WASTEWATER DISCHARGES: If you answered "Yes" to question A.8.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.9. Description of Outfall. a. Outfall number 001 b. Location Town of Manteo 27954 (City or town, if applicable) (Zip Code) (County) (Latitude) C. Distance from shore (if applicable) d. Depth below surface (if applicable) e. Average daily flow rate f. Does this outfall have either an intermittent or a periodic discharge? If yes, provide the following information: Number f times per year discharge occurs: Average duration of each discharge: Average flow per discharge: Months in which discharge occurs: g. Is outfall equipped with a diffuser? A.10. Description of Receiving Waters. a. Name of receiving water b. Name of watershed (if known) (State) (Longitude) 3.600 ft. 11 ft. mgd ❑ Yes ® No (go to A.9.g.) mgd United States Soil Conservation Service 14 -digit watershed code (if known): C. Name of State Management/River Basin (if known); 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): Yes No cfs mg/I of CaCO3 EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22. Page 5 of 22 FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN: Town of Manteo WWTP, N00079057 Renewal Pasquotank A.11. Description of Treatment a. What level of treatment are provided? Check all that apply. C_J Primary Secondary ❑ Advanced Other. Describe: b. Indicate the following removal rates (as applicable): Design BOD5 removal or Design CBOD5 removal Design SS removal Design P removal Design N removal 9t; Other C. What type of disinfection is used for the effluent from this outfall? If disinfection varies by season, please describe: Sodium Hypochlorite Liquid Disinfection If disinfection is by chlorination is dechlorination used for this outfall? A Yes ❑ No j Does the treatment plant have post aeration9 ® 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 UrforrnaUon 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 QAIQC requirements for standard methods for analytes not addressed by 40 CFR Part 136. At a minimum, effluent testing data most be based on at least three samples and must be no more than four and one-half years apart. EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22. Page 6 of 22 MAXIMUM DAILY AVERAGE DAILY VALUE PARAMETER Value .-VALUE Units Value Units Number of Samples pH (Minimum) 7.4 S.U. pH (Maximum) 7.9 S.U. Flow Rate .636 MGD .242 MGD Apr. 2016 — Mar. 2017 Temperature (Winter) 19.7 C 15.6 C Apr. 2016 — Mar. 2017 Temperature (Summer) 30.3 C 27,3 C IApr. 2016 — Mar. 2017 For F_H please reeort a minimum and a maximum daily value MAXIMUM DAILY AVERAGE DAILY DISCHARGE DISCHARGE POLLUTANT ML/MDL METHOD Conc. Units Conc. Units Number of Samples CONVENTIONAL AND NON CONVENTIONAL COMPOUNDS BIOCHEMICAL OXYGEN BOD5 8 mg/L .72 mg/L APR2016- MAR2017 SM 9 5210-B 2 m /L DEMAND (Report one) CBODS ENTEROCOCCI (GEOMETRIC MEAN) 20 #/100m1 1.51 #/100m1 EPA 1600 1 colony/100 A�n�i MI TOTAL SUSPENDED SOLIDS (TSS)X2_,5 mg/L <2.5 mg/L MA�017 SM 2540 D 2.5 mg/L 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: Town of Manteo WWTP, NCO079057 Renewal Pasquotank L� 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 ;-> 0.1 mgd must answer questions B.1 through B.6. 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. 10,000 _. gpd Briefly explain any steps underway or planned to minimize inflow and infiltration. Video and smoke testinn for W. Daily SCADA monitoring for each liftstation along with rain gauge. We use manhole Inserts in pro—, . We investigate and fix problems as we find them. 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 if 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, if 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 Y4 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, rail, 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. Aiso provide a water balance showing all treatment units, including disinfection (e.g., chlorination and dechlorination). 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. BA. Operation/Maintenance Performed by Contractor(s). 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 contractors responsibilities (attach additional pages if necessary). Name: B.5. Mailing Address: Telephone Number. Responsibilities of Contractor. 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. b. Indicate whether the planned improvements or implementation schedule are required by local, State, or Federal agencies. Yes No EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22. Page 7 of 22 FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: Town of Manteo WWTP, NCO079057 Renewal C. If the answer to B.5.b is "Yes," briefly describe, including new maximum daily inflow rate (if applicable). RIVER BASIN: Pasquotank 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 I I I l - End Construction - Begin Discharge - Attain Operational Level e. Have appropriate permits/clearances concerning other Federal/State requirements been obtained? ❑ Yes ❑ No Describe briefly: B.6. 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 throu4h which effluent is discharpeed. fro 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 roust comply with QAIQC 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: EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550.6 & 7550.22. Page 8 of 22 MAXIMUM DAILY AVERAGE ERAGE DAILY DISCHARGE POLLUTANT ANALYTICAL ML/MDL III I Number of METHOD p Conc. Units Conc. Units Samples CONVENTIONAL AND NON CONVENTIONAL COMPOUNDS AMMONIA (as N) <0.2 mg/L <0.2 mg/L 3 SM 4500 NH3 D .2 mg/L CHLORINE (TOTAL RESIDUAL, TRC) e10 uglL <10 ug/L Apr. 2016— Mar. 2017 Hach10014ULM 50 ug/L DISSOLVED OXYGEN 10.2 mg/L 7.9 mg/L Apr. 2018 Mar. 2017 SM 4500 O G .1 mg/L TOTALHL NITROGEN EN (TK (TKN) 1.0 mg/L 0.8 mg/L 3 EPA 351.2 .5 mg/L NITRATE PLUS NITRITE NITROGEN 10.1 mg/L 8.5 mg/L 3 EPA 353.2 .02 mg/L OIL and GREASE <5 mg/L <5 mg/L 3 EPA 1664 5 mg/L PHOSPHORUS (Total) 5.2 mg/L 3.3 mg/L 3 SM 4500 P F .04 mg/L TOTAL DISSOLVED SOLIDS 1180 mg/L 683 mg/L 3 SM 2540 C 2.5 mg/L (TDS) OTHER END OF PART B. 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 8 of 22 FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN: Town of Manteo WWTP, NCO079057 Renewal Pasquotank 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: Biomonitoring Data) ❑ Part F (Industrial User Discharges and RCRAICERCLA Wastes) ❑ Part G (Combined Sewer Systems) i 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 Signature Telephone number Joshua O'Brien. Utilities Superintendent Date signed rr I C It Upon request of the permitting authority, you must submit 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 Form 3510-2A (Rev. 1.99). Replaces EPA forms 755x6 & 7550-22. Page 9 of 22 FKVOFZK Water and Sewer Department May 19, 2017 NC DEN R / DWQ/ NPDES 1617 Mail Service Center Raleigh, NC 27699-1617 SUBJECT: DESCRIPTION OF SLUDGE MANAGEMENT PLAN PERMIT No. NCO079057 Manteo WWTP Dare County Our sludge is wasted from our Secondary Clarifiers based on determination of MLSS, SVI, temp and other operational factors. We closely monitor all lab results as well as fixed probes within our process units that communicate with our SCADA system to make these decisions. The WAS is moved from our Clarifiers manually to anaerobic digester where it is aerated for the appropriate amount of time based on the season for proper digestion of solids. When there is no available volume left in the Digester, we turn the aerator off to allow the sludge to settle and are able to return a clear supernatant back to the Headworks of the Treatment Plant. Once done with decanting, the aerator is returned to working order. At the point that the sludge blanket in the Digester is too high that it effects the quality of supernatant, we then move the thickened blanket to our Sludge Holding Lagoon for storage and further aeration and mixing. We operate the Sludge Holding Lagoon in the same manner as the Digester for further digestion and thickening of solids. When the Sludge Holding Lagoon has reached the appropriate percentage of solids, we stabilize the sludge by raising the pH to above 12 standard units for 24 hours. Once the stabilization has been achieved, the sludge is hauled by truck and land applied. The hauling is conducted by a contracted company as well as the land application of sludge. Sincerely, Josh O'Brien Utilities Superintendent Town of Manteo PO Box 246 Manteo, NC 27954 (252) 473-3513 (office) (252) 473-1811 (fax) ' . •do- �V . `w . 1 w�, Y♦ �• • A ice. r- • ' b• ��� f` . � r.lY 1�1�Y f 4•`•• '. 1 r� 14 0 r Me�crs�,'in'at€i t' A 4 - PORI .` :: Baum Point 61 r� � -1Or ♦ _ ..t"^r� %.� tn� yf►\A ai ,n _ I p <r. .. � ..,� "�,. sY '� " • AI S 'pD1i hLAM - � Sarrifyr PC�I�`'i•,� � �- - sk 11owba p Bait r r , _ r.� r a+ lit l ;- C4 �u�h ,� Outfall 001 4k ,•- wit e- ~.,rte a� (�' • • � 149�"� � J, :"ti> ,�p �. - .\..-r -�'� ••i•- r}�`'A �( �: e•- _ I �( ► `� *�{. r 4e- +� _ M t, «. r Y �• - ii' -K i�Y� 7- A- 4 aL Y. 1� .�►' � �. } tea• S i` �,' [� ., t.:•4J �.w -w �} JF _ lw;e •. d 4 .� - " �• •?- w _ - 1 5 ''4,�y1 0.t _ : ']`y� -� �. `- _. P � ._ - M • � � ~ _. � -w- } _ _ _ - ° - -✓ �! '•'^ '� �-'�� - 4 iI °� . ,°'" -- _ s � _� -M- - � - � ? •� SLY , 5 t,.l� �. ' �- - w �.i� -I• M �- « ' - _ _ - � - apt ..' f I t !r r' - ' 'tom - f3� y i�; •- � r� t-�_ - - x �+�6 3-. •S. ; < +P t ,•yam. _ 1 4Y 4 _ _ ' a �+'��A- w r i I1 , 4•t 1 h; � � rPi�� � s (v -w- _ � ...�1- � �,:s, ��- dF ✓'/- y-- -f - �uad: Manteo, N.C. NCO07905 7 Facility 3ubbasin: 30151 Location Latitude: 35°54'24" Town of Manteo WWTP Longitude: 75°3928" Receiving Stream: Shallowbag Bay kream Class: SC North SCALE 1:24000 ado � a LIO� 3 940 a >, c — L E w c6 m L m 10 L- mom a� 3+? a�a, Lty >5 n3c8a�,�� i °co E acro _ c� W Z O C m N U V tea-' C LN" N N S .�F• �, N H 7 3 'v to rn.0 N -a fn Z ''"' O t Q p o�Eo�o co_Q_ .G � J Z 0� E c .00 :E- co c`o E N c Q LL fn o r a vi i a N H N 0 to z W Q -Q C o 0) 8 O L _ _ ..-. O 0 c'm:s2 o 0= � O (� L N O HO 0 W.- C o= Eet t L v �N N l0 f� tb a. N '� N y C Q (Dj r— I E N�� =— go) E S O a '� =��ojt; = CL 30 w 3 Nim CL 0 01 o a ° m E = ca o o E a CL O o C 3 �0 Al�- ti 0 E ' Q 0 3 cl 0 U-