The URL can be used to link to this page

Home My WebLink AboutNC0060321_Change Page to Correct Error_20171122Water Resources ENVIRONMENTAL QUALITY ROY COOPER Goi ei not MICHAEL S REGAN Secy elmp LINDA CULPEPPER Into uu Al ecla November 22, 2017 Mr. Edward Riggs, Jr First Craven Sanitary District PO Box 608 Bridgeton, NC 28519-0608 Subject: Change -Page to Correct Error NPDES Permit NCO060321 First Craven Sanitary District WTP Craven County Dear Mr. Riggs: The Division of Water Resources (the Division) received your notification of an error in the subject permit (effective November 1, 2017). You stated that instream monitoring requirements added to the newly issued permit that were not present in the draft permit and requested that they be removed as there is no upstream location to sample and that a downstream sampling point is unnecessary as there is no other water entering the receiving drain other than runoff from the road. Division staff in the Washington Regional Office concur that upstream monitoring should not be included in the permit as there is no feasible location to sample; therefore, upstream monitoring for all parameters has been removed. Downstream monitoring will remain in the permit for conductivity, dissolved oxygen, pH, and salinity, however, based on recommendations of the Washington Regional Office, the sample type for conductivity and salinity has been changed to grab for downstream monitoring as there are limitations to performing composite sampling, and the downstream monitoring frequency for pH has been reduced to monthly as there is no limit in the permit for downstream pH. Accordingly, we hereby forward the modified permit pages to amend your permit removing upstream monitoring for conductivity, dissolved oxygen, pH, and salinity in Section A. (1), change the sample type to grab for conductivity and salinity for downstream monitoring in Section A. (1), and change the measurement frequency for downstream pH monitoring to monthly in Section A. (1). Please insert these change pages into your existing permit and discard the old pages. We regret any inconvenience this causes your organization. Please note that this permit is not transferable except after notice to the Division. The Division may require modification or revocation and reissuance of the permit This permit does not affect the legal requirements to obtain other permits which may be required by the Division of Water Resources or any other Federal, State, or Local governmental permits that may be required. If you have questions, or if we can be of further service, please contact Brianna Young at brianna.young@ncdenr.gov or call (919) 807-6333 R pectful y, •� i a u pepp r, Inte in / irector Division of Water Resources State of North Carolina I Environmental Quality I Water Resources 1617 Mail Service Center I Raleigh, NC 27699-1617 919 807 6300 919-807-6389 FAX https //deq ne gov/about/divisions/water-resources/water-resources-permits/wastewater-branch/npdes-wastewater-permits Enclosure: NPDES Permit NC0060321 (Corrected Pages) hc: Central Files NPDES Program Files Washington Regional Office ec Edward Riggs Jr., First Craven Sanitary District [firstcraven@embargmail com] Aquatic Toxicology Unit, Susan Meadows [susan meadows@ncdenr gov] Permit NCO060321 PART I. A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS [15A NCAC 02B .0400 et seq., 15A NCAC 02B .0500 et seq.] During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge from outfall 001. Such discharges shall be limited and monitored' by the Permittee as specified below for each outfall: EFFLUENT CHARACTERISTICS Parameter Code LIMITS MONITORING REQUIREMENTS Monthly Daily Average Maximum Measurement Frequency Sample Type Sample Location s Flow3 50050 2/Month Instantaneous 3 Effluent Total Residual Chlorine 4 50060 13 pg/L 2/Month Grab Effluent Conductivity 00094 Monthly Composite Effluent Conductivity 00094 Monthly Grab Downstream Dissolved Oxygen 00300 Monthly Grab Effluent, Downstream pH 00400 6.8 s.0 - 8.5 s.u. 2/Month Grab Effluent pH 00400 Monthly Grab Downstream Salinity 00480 Monthly Composite Effluent Salinity 00480 Monthly Grab Downstream Total Suspended Solids C0530 30.0 mg/L 45.0 mg/L 2/Month Grab Effluent Total Dissolved Solids 70295 Monthly Grab Effluent Turbidity 00070 Monthly Grab Effluent Total Iron 01045 Monthly Composite Effluent Total Copper 5 01042 3.70 Ng/L 5.80 pg/L Monthly Composite Effluent Total Chloride 00940 Monthly Composite Effluent Total Manganese 01055 Monthly Composite Effluent Total Lead 5 01051 8.50 Hg/L 220.80 pg/L Monthly Composite Effluent Total Zinc 01092 85.6 pg/L 951 pg/L Monthly Composite Effluent Fluoride 6 00951 Monthly Composite Effluent Ammonia Nitrogen 7 C0610 Monthly Composite Effluent Total Phosphorus C0665 Monitor & Report (mg/L) Quarterly Grab Effluent Total Nitrogen 8 C0600 Monitor & Report (mg/L) Quarterly Grab Effluent Whole Effluent Toxicity TGP3E Monitoring9 Monitor & Report p Quarter' y Composite p Effluent Footnotes: 1. The permittee shall submit discharge monitoring reports electronically using the Division's eDMR system [see A. (4)]. 2. Sampling locations: Downstream of the discharge location. 3. For instantaneous flow monitoring, the duration of the discharge must be reported in addition to the total flow. Duration of the discharge should be noted in log books and a Total daily discharge reported in the DMR. Permit NCO060321 4. The Division shall consider all effluent TRC values reported below 50 ug/l to be in compliance with the permit. However, the Permittee shall continue to record and submit all values reported by a North Carolina certified laboratory (including field certified), even if these values fall below 50 ug/l. 5 See Special Condition A. (3) for compliance schedule to meet limits. 6. Fluoride should be monitored if the Permittee backwashes with fluoridated finished water. 7. Ammonia Nitrogen should be monitored if the Permittee uses chloramines (adds ammonia to chlorinated water) for secondary disinfection prior to backwashing. 8. For a given wastewater sample, TN = TK- + NO3-N + NO2-N, where TN is Total Nitrogen, TKN is Total Kjeldahl Nitrogen, and NO3-N and NO2-N are Nitrate and Nitrite Nitrogen, respectively. 9. See Special Condition A. (2) for Whole Effluent Toxicity monitoring and reporting requirements All samples collected should be from a representative discharge event. There shall be no discharge of waste or chemicals not directly resulting from the responsible treatment of raw water. THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAM IN OTHER THAN TRACE AMOUNTS.