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NC0032565_Draft Fact Sheet_20230524FACT SHEET FOR EXPEDITED PERMIT RENEWALS This form must be completed by Permit Writers for all expedited permits which do not require full Fact Sheets. Expedited permits are generally simple 100% domestics (e.g., schools, mobile home parks, etc.) that can be administratively renewed with minor changes but can include facilities with more complex issues (Special Conditions, 303(d) listed water, toxicity testing, instream monitoring, compliance concerns). Basic Information for Expedited Permit Renewals Permit Writer/Date Charles Weaver — 5/16/2023 Permit Number NCO032565 Facility Name North Lenoir High School WWTP Basin Name/Sub-basin number Neuse / 03-04-07 Receiving Stream UT Wheat Swam Stream Classification in Permit C-Swamp NSW Does permit need Daily Max NH3 limits? NH3 limits are at BAT to protect against instream toxicity Does permit need TRC limits/language? No — already resent Does permit have toxicity testing? No Does permit have Special Conditions? Neuse nutrient conditions Does permit have instream monitoring? Temperature & Dissolved Oxygen Is the stream impaired (on 303(d) list)? No For whatparameter? Any obvious compliance concerns? Sixteen enforcements during this permit cycle, along with twenty-three NOVs and one NOD. An examination of flow violations has determined the facility was reporting incorrectly, which led to the appearance of flow exceedances. An inspection of the facility was conducted on January 31, 2023. The inspection revealed that the WWTP requires significant maintenance/repair/upgrade or replacement if permit limits are to be met on a consistent basis. However, even in its current state, it appeared possible that the existing system could perform in compliance but for the state of the influent it receives. The influent was unusually clear and did not bring enough food source to the system to promote good biological activity in the activated sludge process. Under these circumstances, it will be very difficult for the facility to meet ammonia nitrogen effluent limits. It appeared that the operator of the WWTP coaxed its best performance from the existing system, but it was obvious that the permittee must invest more into system maintenance. Positive developments occurred just prior to and following the inspection. The school system has significant funding devoted to the future of wastewater treatment. The school system has been in continuing discussions with a reputable engineering firm that has guided them in an examination of possible solutions and the recommendation of one in particular. They are going to recommend construction of a pump station and sewer force main to connect the school to the City of Kinston collection system. They further recommend entry into the SOC to cover the school during the time period of construction. Any permit modifications since the last None. permit? New expiration date 5/31/2028 Comments on Draft Permit Updated eDMR text. Added Neuse modeling reo ener Most Commonly Used Expedited Language: • 303(d) language for Draft/Final Cover Letters: "Please note that the receiving stream is listed as an impaired waterbody on the North Carolina 303(d) Impaired Waters List. Addressing impaired waters is a high priority with the Division, and instream data will continue to be evaluated. If there is noncompliance with permitted effluent limits and stream impairment can be attributed to your facility, then mitigative measures may be required". • TRC language for Compliance Level for Cover Letters/Effluent Sheet Footnote: "The facility shall report all effluent TRC values reported by an NC certified laboratory including field certified. However, effluent values < 50 µg/l will be treated as zero for compliance purposes."