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HomeMy WebLinkAboutNC0004308_Permit (Issuance)_20190702 ROY COOPER , _mow Governor "SM, - '- x � MICHAEL S.REGAN r Secretary LINDA CULPEPPER NORTH CAROLINA Director Environmental Quality July 2, 2019 Ms. Robyn Gross Director, Assets Management America Badin Business Park, LLC 201 Isabella St. Pittsburg, PA 15212 Subject: Final NPDES Permit Permit NC0004308 Badin Business Park LLC. Stanly County Class I Facility Dear Ms. Gross: The Division is forwarding herewith the NPDES permit for Badin Business Park LLC, modified as stipulated in the Settlement Agreement executed on May 3,2019. This permit is issued pursuant to the requirements of North Carolina General Statute 143-215.1 and the Memorandum of Agreement between North Carolina and the U.S. Environmental Protection Agency dated October 15, 2007 (or as subsequently amended). The fmal permit maintains the following significant changes identified in the letter sent on May 14, 2019: • Outfalls 018 and 022 were moved to the stormwater section. These two outfalls are stormwater outfalls collecting surface runoff from the Alcoa-Badin Landfill. The outfalls will be sampled according to the stormwater sampling protocol [see Section B.(1.)]. • Language was added to A.(5.) for outfall 019 (section A.(6.) in the 2017 final permit) stating that" If no parameters are detected during the permit cycle, this outfall may be removed from the permit after a public notice process and consideration of public comments". • Footnote was included in section A.(1.) for outfall 005 stating that "The Division shall consider all effluent TRC values reported below 50 µg/ 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 µg/L". • Permittee has submitted priority pollutant scans (PPAs)for outfalls 005, 012,013,018 and 022. No parameters were detected except Total Cyanide for outfall 012 which was within DEC)-* North Carolina Department of Environmental Quality I Division of Water Resources 512 North Salisbury Street 11617Mail Service Center I Raleigh,North Carolina 27699-1617 Q1Q 707 1401 the permit limits.No PPA is required for outfall 011 since it is the overflow for outfall 012. Therefore,special condition A.(9.),Priority Pollutant Analysis,was removed from the final permit. • As a condition of the settlement agreement,Badin Business Park submitted PPA for outfall 004. No parameter was detected in the pollutant scan except Fluoride which is below the water quality standard. Therefore, no effluent limitations and monitoring requirements need to be added to the permit. • The outfall coordinates in the final permit were revised(see Table 1). • Mixing zone analysis for outfall 012—Based on the submitted CORMIX dilution model, special condition C.(7.),Mixing Zone(Outfall 012),was modified to include the boundary of the mixing zone and the locations of three instream sampling stations. • Cyanide limits for outfall 012 - Based on the submitted CORMIX dilution model, Total Cyanide monthly average and daily maximum limits have been modified to 242 µg/L (Dilution Factor of 48.4) and 285 µg/L(Dilution Factor of 6.12),respectively[See section A.(3.)]. • Trichloroethylene(TCE)limits for outfall 012-Based on the submitted CORMIX dilution model,the monthly average and daily maximum limits for TCE have been modified to 121 µg/L(Dilution Factor of 48.4) and 181.5 µg/L(Dilution factor of 6.12), respectively [See section A.(3.)]. • Special condition A.(8.), Monitoring Study, has been removed from the permit in light of the fact that the Permittee has committed to conduct similar study under the Division of Waste Management(DWM). If any parts, measurement frequencies or sampling requirements contained in this permit are unacceptable to you, you have the right to an adjudicatory hearing upon written request within thirty (30) days following receipt of this letter. This request must be in the form of a written petition, conforming to Chapter 150B of the North Carolina General Statutes, and filed with the Office of Administrative Hearings (6714 Mail Service Center, Raleigh, North Carolina 27699- 6714). Unless such demand is made, this decision shall be final and binding. 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 regulations. If you have any questions concerning this permit,please contact Qais Banihani at(919) 707-3607 or via email at Qais.Banihani@ncdenr.gov. Sincerely, Linda Culpepper, Director of Division of Water Resources,NCDEQ Page 2 of 3 Hardcopy: NPDES Files Central Files Mooresville Regional Office/Water Quality Ecopy: US EPA Region 4 WSS/Aquatic Toxicology Branch/Susan Meadows NC DEQ/DWR/PWS Regional Engineer/ Clinton Cook DWM/Hazardous Waste Section/Robert McDaniel Annette Lucas/ DEMLR Page 3 of 3 Permit NC0004308 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY DIVISION OF WATER RESOURCES PERMIT TO DISCHARGE WASTEWATER AND STORMWATER UNDER THE NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM In compliance with the provisions of North Carolina General Statute 143-215.1, other lawful standards and regulations promulgated and adopted by the North Carolina Environmental Management Commission,and the Federal Water Pollution Control Act,as amended, Badin Business Park, LLC. is hereby authorized to discharge wastewater and stormwater from a facility located at the Badin Business Park NC Hwy. 740 &NCSR 1719 Stanly County to receiving waters designated as UT to Little Mountain Creek and Badin Lake(Yadkin River) in the Yadkin -Pee Dee River Basin in accordance with effluent limitations,monitoring requirements,and other conditions set forth in Parts I,II, and III of this permit. This permit shall become effective August 01,2019. This permit and the authorization to discharge shall expire at midnight on October 31,2022. Signed this day July 02,2019. Linda Culpepper,Director 0( Division of Water Resources By Authority of the Environmental Management Commission Page 1of27 Permit NC0004308 SUPPLEMENT TO PERMIT COVER SHEET The authority to operate and discharge from this facility arises exclusively under the terms and conditions of this NPDES Permit. Therefore, upon the effective date of this permit, any and all previous NPDES Permits issued for this facility and bearing this permit number are revoked. Badin Business Park, LLC. is hereby authorized to: 1. Discharge the following: • stormwater at Outfalls 002,004,017,018,020,and 022 • groundwater,stormwater and or fire protection water at Outfalls 005,012,011 when flows exceed the capacity of the diffuser,and 013; • overflow from stormwater retention pond at Outfall 019. all outfalls being located at or near Badin Business Park in Stanly County;and 2. Discharge such groundwater, stormwater and/or fire protection water from locations specified on the attached map into an unnamed tributary to Little Mountain Creek(Outfalls 004,005,017,018,and 022)and into Badin Lake (Yadkin River) (Outfalls 002,011,012, 013,019,020) which are classified as Class"WS-IV" waters and Class "WS-IV CA & B" waters, respectively, in the Yadkin-Pee Dee River Basin. All discharges shall be in accordance with the attached schedules as follows: Part I: Monitoring,Controls,and Limitations for Permitted Discharges A.Effluent Limitations and Monitoring Requirements B. Stormwater Management Requirements C.Special Conditions Part II: Standard Conditions for NPDES Permits Part III: Other Requirements Any other point source discharge to surface waters of the state is prohibited unless covered by another permit, authorization,or approval. This permit does not relieve the Permittee from responsibility for compliance with any other applicable federal,state,or local law,rule, standard,ordinance,order,judgment,or decree. Page 2 of 27 Permit NC0004308 PART I SECTION A-EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge wastewater and stormwater associated with the activities described in its current NPDES permit application. Such discharges shall be monitored, controlled, and limited as specified below. A.(1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - Outfall 005 [15A NCAC 02B .0400 et seq.,02B .0500 et seq.] During the period beginning on the effective date of this permit and lasting until the expiration date of this permit,the Permittee is authorized to discharge groundwater,stormwater,and fire protection water at Outfall 005 subject to the following effluent limitations and monitoring) requirements: EFFLUENT LIMITATIONS MONITORING REQUIREMENTS PARAMETER Monthly Weekly Daily Measurement Sample Sample Average Average Maximum Frequency Type Location 2 Flow Monthly Instantaneous E Total Suspended Solids Quarterly Composite 3 E pH Shall remain within the range of 6.0 Monthly Grab E to 9.0 standard units at all times Total Aluminum Quarterly Composite 3 E Total Fluoride 4 1.8 mg/I 24 mg/1 Monthly Composite 3 E Total Cyanide 4 5 µg/1 46.6 µg/1 Monthly Grab E Total Residual Chlorine 4 17 µg/I Monthly Grab E Acute Toxicity 5 Quarterly Composite 3 E Footnotes: 1. Submit Discharge Monitoring Reports electronically using NC DWR's eDMR application system. Please See Special Condition C.(6). 2. Sample locations: E-Effluent. 3. The Permittee may use time-proportionate compositing or other sampling method provided that the alternate method yields samples that are reasonably representative of the discharge during the monitoring period. 4. The permittee shall use sufficiently sensitive test procedures approved under 40 CFR part 136 for the analysis of pollutants. A method is"sufficiently sensitive"when:(1)The method minimum level(ML) is at or below the level of the effluent limit established in the permit for the measured pollutant or pollutant parameter; or (2) the method has the lowest ML of the analytical methods approved under 40 CFR part 136 or required under 40 CFR chapter I,subchapter N or 0 for the measured pollutant or pollutant parameter.The Division shall consider all effluent TRC values reported below 50 µg/ 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 µg/L. 5. Acute Toxicity P/F Quarterly;see Special Condition C.(1). Page 3 of 27 Permit NC0004308 A.(2.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - Outfall 011 [15A NCAC 02B .0400 et seq.,02B .0500 et seq.] During the period beginning on the effective date of this permit and lasting until the expiration date of this permit, the Permittee is authorized to discharge fire protection waters, groundwater, and stormwater exceeding the Outfall 012 diffuser capacity at Outfall 011 subject to the following effluent limitations and monitoringl requirements: EFFLUENT LIMITATIONS MONITORING REQUIREMENTS PARAMETER Monthly Weekly Daily Measurement Sample Sample Average Average Maximum Frequency Type Location 2 Flow Monthly Instantaneous E Total Aluminum Quarterly Grab E Total Fluoride 3 24 mg/1 Monthly Grab E Total Cyanide 3 46.6 µg/1 Monthly Grab E Total Suspended Solids Quarterly Grab E Trichloroethylene(TCE)3.4 3.7 µg/1 Monthly Grab E Shall remain within the range of 6.0 pH to 9.0 standard units at all times Quarterly Grab E Acute Toxicity 5 Quarterly Grab E Footnotes: 1. Submit Discharge Monitoring Reports electronically using NC DWR's eDMR application system. Please See Special Condition C.(6). 2. Sample locations:E-Effluent. 3. The permittee shall use sufficiently sensitive test procedures approved under 40 CFR part 136 for the analysis of pollutants.A method is"sufficiently sensitive"when:(1)The method minimum level(ML) is at or below the level of the effluent limit established in the permit for the measured pollutant or pollutant parameter; or (2)the method has the lowest ML of the analytical methods approved under 40 CFR part 136 or required under 40 CFR chapter I,subchapter N or 0 for the measured pollutant or pollutant parameter. The Permittee shall report on its Discharge Monitoring Reports the actual laboratory results for each effluent sample tested. 4. The facility may request that the Division review the data after collection of at least 12 data points to determine if there is reasonable potential to exceed the water quality standard or EPA criteria. If no reasonable potential exists, the Division may remove the limit and/or reduce the monitoring frequency. 5. Acute Toxicity Monitoring Quarterly;see Special Condition C.(2). Page 4 of 27 Permit NC0004308 A.(3.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - Outfall 012 [15A NCAC 02B .0400 et seq., 02B .0500 et seq.] During the period beginning on the effective date of this permit and lasting until the expiration date of this permit, the Permittee is authorized to discharge fire protection waters, groundwater, and stormwater at Outfall 012(diffuser) subject to the following effluent limitations and monitoring) requirements: EFFLUENT LIMITATIONS MONITORING REQUIREMENTS PARAMETER Monthly Weekly Daily Measurement Sample Sample Average Average Maximum Frequency Type Location 2 Flow Monthly Instantaneous E Total Suspended Solids Quarterly Composite 3 E pH Shall remain within the range of 6.0 Monthly Grab E to 9.0 standard units at all times Total Cyanide 4 242 µg/1 285 µg/1 Monthly Grab E Total Fluoride 4 Quarterly Composite 3 E Total Aluminum Quarterly Composite 3 E Trichloroethylene(TCE)45 121 µg/1 181.5 µg/1 Monthly Grab E Chronic Toxicity 6 Quarterly Composite 3 E Footnotes: 1. Submit Discharge Monitoring Reports electronically using NC DWR's eDMR application system. Please See Special Condition C.(6). 2. Sample locations:E-Effluent. 3. The Permittee may use time-proportionate compositing or other sampling method provided that the alternate method yields samples that are reasonably representative of the discharge during the monitoring period. 4. The permittee shall use sufficiently sensitive test procedures approved under 40 CFR part 136 for the analysis of pollutants.A method is"sufficiently sensitive" when: (1)The method minimum level(ML) is at or below the level of the effluent limit established in the permit for the measured pollutant or pollutant parameter; or (2) the method has the lowest ML of the analytical methods approved under 40 CFR part 136 or required under 40 CFR chapter I,subchapter N or 0 for the measured pollutant or pollutant parameter. The Permittee shall report on its Discharge Monitoring Reports the actual laboratory results for each effluent sample tested. 5. The facility may request that the Division review the data after collection of at least 12 data points to determine if there is reasonable potential to exceed the water quality standard or EPA criteria. If no reasonable potential exists, the Division may remove the limit and/or reduce the monitoring frequency. 6. Chronic Toxicity Pass/Fail Quarterly;see Special Condition C.(3). Page 5 of 27 Permit NC0004308 A.(4.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS -Outfall 013 [15A NCAC 02B .0400 et seq., 02B .0500 et seq.] During the period beginning on the effective date of this permit and lasting until the expiration date of this permit, the Permittee is authorized to discharge groundwater and stormwater at Outfall 013 subject to the following effluent limitations and monitoring1 requirements: EFFLUENT LIMITATIONS MONITORING REQUIREMENTS PARAMETER Monthly Weekly 1 Daily Measurement Sample Average Average Maximum Frequency Sample Type Location 2 Flow Monthly Instantaneous E Total Suspended Solids Quarterly Composite 3 E Total Aluminum Quarterly Composite 3 E Total Fluoride Quarterly Composite 3 E Total Cyanide 4 5 µg/I 46.6 µg/I Monthly Grab E PH Shall remain within the range of 6.0 Monthly Grab E to 9.0 standard units at all times Acute Toxicity 5 Quarterly Composite 3 E Footnotes: 1. Submit Discharge Monitoring Reports electronically using NC DWR's eDMR application system. Please See Special Condition C.(6). 2. Sample locations:E-Effluent. 3. The Permittee may use time-proportionate compositing or other sampling method provided that the alternate method yields samples that are reasonably representative of the discharge during the monitoring period. 4. The permittee shall use sufficiently sensitive test procedures approved under 40 CFR part 136 for the analysis of pollutants. A method is "sufficiently sensitive" when: (1) The method minimum level (ML) is at or below the level of the effluent limit established in the permit for the measured pollutant or pollutant parameter;or(2)the method has the lowest ML of the analytical methods approved under 40 CFR part 136 or required under 40 CFR chapter I,subchapter N or 0 for the measured pollutant or pollutant parameter. The Permittee shall report on its Discharge Monitoring Reports the actual laboratory results for each effluent sample tested. 5. Acute Toxicity Monitoring Quarterly;see Special Condition C.(2). Page 6 of 27 Permit NC0004308 A.(5.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS -Outfall 019 [15A NCAC 02B .0400 et seq., 02B .0500 et seq.] During the period beginning on the effective date of this permit and lasting until the expiration date of this permit, the Permittee is authorized to discharge overflow from the retention pond at the Old Brick Landfill at Outfall 019 subject to the following effluent limitations and monitoring) requirements: EFFLUENT LIMITATIONS MONITORING REQUIREMENTS PARAMETER Monthly Weekly Daily Measurement Sample Type Sample Average Average Maximum Frequency Location 2 Flow Semi-annual Instantaneous E Total Rainfall(inches)3 Semi-annual Rain gauge --- Total Suspended Solids Semi-annual Grab E Total Aluminum Semi-annual Grab E Total Fluoride 4 Semi-annual Grab E Total Cyanide 4 Semi-annual Grab E pH Shall remain within the range of 6.0 Semi-annual Grab E to 9.0 standard units at all times Acute Toxicity 5 Annual Grab E Footnotes: 1. Submit Discharge Monitoring Reports electronically using NC DWR's eDMR application system. Please See Special Condition C.(6). 2. Sample locations: E-Effluent. 3. For each sampled representative storm event the total precipitation must be recorded. An on-site rain gauge or local rain gauge reading must be recorded. 4. The permittee shall use sufficiently sensitive test procedures approved under 40 CFR part 136 for the analysis of pollutants. A method is"sufficiently sensitive" when: (1)The method minimum level(ML) is at or below the level of the effluent limit established in the permit for the measured pollutant or pollutant parameter; or (2) the method has the lowest ML of the analytical methods approved under 40 CFR part 136 or required under 40 CFR chapter I,subchapter N or 0 for the measured pollutant or pollutant parameter. The Permittee shall report on its Discharge Monitoring Reports the actual laboratory results for each effluent sample tested. 5. Acute Toxicity Monitoring Annual;see Special Condition C.(4). If no parameters are detected during the permit cycle, this outfall may be removed from the permit after a public notice process and consideration of public comments. Page 7 of 27 Permit NC0004308 SECTION B - STORMWATER MANAGEMENT REQUIREMENTS [G.S. 143-215.1(A) et seq., 15A NCAC 02H .0126 et seq.] B.(1.) STORMWATER MONITORING REQUIREMENTS-Outfalls 002,004,017,018,020&022 During the period beginning on the effective date of this permit and lasting until the expiration date of this permit,the Permittee is authorized to discharge stormwater at Outfalls 002,004,017,018,020 and 022. Such discharges shall be controlled,limited,and monitored as specified in this permit. 1. Analytical Monitoring: Analytical monitoring of stormwater discharges shall be performed as specified below. All analytical monitoring shall be performed during a measureable storm event. A measurable storm event is a storm event that results in an actual discharge from the permitted site outfall. The previous measurable storm event must have been at least 72 hours prior. The 72-hour storm interval does not apply if the permittee is able to document that a- shorter interval is representative for local storm events during the sampling period, and the permittee obtains approval from the local DEMLR Regional Engineer(See Definitions). Analytical Monitoring Requirements Discharge Characteristics Units Measurement Sample Sample Frequencyl Type2 Location3 Total Suspended Solids (TSS) mg/L semi-annual Grab SDO Chemical Oxygen Demand (COD) mg/L semi-annual Grab SDO Aluminum,Total Recoverable mg/L semi-annual Grab SDO Total Cyanide mg/L semi-annual Grab SDO Total Fluoride mg/L semi-annual Grab SDO a semi-annual Rain Total Rainfall inches - Gauge Footnotes: 1. Measurement Frequency: Twice per year (unless other provisions of this permit prompt monthly sampling) during a measureable storm event, until either another permit is issued for this facility or until this permit is revoked or rescinded. If the facility is monitoring monthly because of Tier Two or Three response actions under the previous permit, the facility shall continue a monthly monitoring and reporting schedule in Tier Two or Tier Three status until relieved by the provisions of this permit by DEMLR. 2. Grab samples shall be collected within the first 30 minutes of discharge. When physical separation between outfalls prevents collecting all samples within the first 30 minutes, sampling shall begin within the first 30 minutes,and shall continue until completed. 3. Sample Location: Samples shall be collected at each stormwater discharge outfall (SDO) unless representative outfall status (ROS) has been granted. A copy of DEMLR's letter granting ROS shall be kept on site. 4. For each sampled measureable storm event,the total precipitation must be recorded. An on-site rain gauge is required. Where isolated sites are unmanned for extended periods of time,a local rain gauge reading may be substituted for an on-site reading. Page 8 of 27 Permit NC0004308 The permittee shall complete the analytical samplings in accordance with the schedule specified below, unless adverse weather conditions prevent sample collection. A minimum of 60 days must separate Period 1 and Period 2 sample dates, unless monthly monitoring has been instituted under a Tier Two response. Inability to sample because of adverse weather conditions must be documented in the Stormwater Pollution Prevention Plan(SPPP) and recorded on the DMR. The permittee must report the results from each sample taken within the monitoringperiod (see Part II, Section D . However, for purposes of P ) P P benchmark comparison and Tiered response actions,the permittee shall use the analytical results from the first sample with valid results within the monitoring period. Monitoring Schedule Semi-Annual Start Date End Date Monitoring Events1'2 (All Years)3 (All Years)3 Period 1 January 1 June 30 Period 2 July 1 December 31 Footnotes: 1 Maintain semi-annual monitoring until either another permit is issued for this facility or until this permit is revoked or rescinded. The permittee must submit an application for renewal of coverage before the submittal deadline (180 days before expiration) to be considered for renewed coverage under the permit. The permittee must continue analytical monitoring throughout the permit renewal process,even if a renewal permit is not issued until after expiration of this permit. 2 If no discharge occurs during the sampling period, the permittee must submit a monitoring report indicating"No Flow" or"No Discharge" within 30 days of the end of the sampling period. 3 Monitoring periods remain consistent through the permit term and through the renewal process. Failure to monitor semi-annually per permit terms may result in DEMLR requiring monthly monitoring for all parameters for a specified time period. "No discharge" from an outfall during a monitoring period does not constitute failure to monitor,as long as it is properly recorded and reported. The permittee shall compare monitoring results to the benchmark values below. Exceedances of benchmark values require the permittee to increase monitoring, increase management actions, increase record keeping, and/or install stormwater Best Management Practices(BMPs)in a tiered program. See below the descriptions of Tier One,Tier Two,and Tier Three response actions. In the event that DEMLR releases the permittee from continued monthly monitoring and reporting under Tier Two or Tier Three, DEMLR's release letter may remain in effect through subsequent reissuance of this permit, unless the release letter provides for other conditions or duration. Page 9 of 27 Permit NC0004308 Benchmark Values for Analytical Monitoring Discharge Characteristics Units Benchmark Total Suspended Solids(TSS) mg/L 100 Chemical Oxygen Demand mg/L 120 Aluminum,Total Recoverable mg/L 0.75 Total Cyanide mg/L 0.02 Total Fluoride mg/L 6 The benchmark values above are not permit limits but should be used as guidelines for implementation of the permittee's SPPP. An exceedance of a stormwater benchmark value is not a permit violation; however, failure to respond to the exceedance as outlined in this permit is a violation of permit conditions. Tier One If:The first valid sampling results are above a benchmark value for any parameter at any outfall; Then:The permittee shall: 1. Conduct a stormwater management inspection of the facility within two weeks of receiving sampling results. 2. Identify and evaluate possible causes of the benchmark value exceedance. 3. Identify potential, and select the specific feasible: source controls, operational controls, or physical improvements to reduce concentrations of the parameters of concern. 4. Implement the selected feasible actions within two months of the inspection. 5. Record each instance of a Tier One response in the SPPP. Include the date and value of the benchmark exceedance,the inspection date,the personnel conducting the inspection,the selected actions,and the date the selected actions were implemented. 6. Note: Benchmark exceedances for a different parameter separately trigger a tiered response. Tier Two If:The first valid sampling results from two consecutive monitoring periods are above the benchmark values for any specific parameter at a specific discharge outfall; Then:The permittee shall: 1. Repeat all the required actions outlined above in Tier One. 2. Immediately institute monthly monitoring and reporting for all parameters. The permittee shall conduct monthly monitoring at every outfall where a sampling result exceeded the benchmark value for two consecutive samples. Monthly (analytical and qualitative) monitoring shall continue until three consecutive sample results are below the benchmark values or within benchmark range. 3. If no discharge occurs during the sampling period, the permittee is required to submit a monthly monitoring report indicating"No Flow" to comply with reporting requirements. 4. Alternatively, in lieu of steps 2 and 3, the permittee may,after two consecutive exceedances, exercise the option of contacting the DEMLR Regional Engineer as provided below in Tier Three. The Regional Engineer may direct the response actions on the part of the permittee as provided in Tier Three, including reduced or additional sampling parameters or frequency. 5. Maintain a record of the Tier Two response in the SPPP. 6. Continue Tier Two response obligations throughout the permit renewal process. Page 10 of 27 Permit NC0004308 Tier Three If:The valid sampling results required for the permit monitoring periods exceed the benchmark value for any specific parameter at any specific outfall on four occasions,the permittee shall notify the DEMLR Regional Engineer in writing within 30 days of receipt of the fourth analytical results; Then:The Division may but is not limited to: • require that the permittee revise, increase, or decrease the monitoring and reporting frequency for some or all of the parameters herein; • require sampling of additional or substitute parameters; • require the permittee to install structural stormwater controls; • require the permittee to implement other stormwater control measures; • require the permittee to perform upstream and downstream monitoring to characterize impacts on receiving waters;or • require the permittee implement site modifications to qualify for a No Exposure Exclusion; • require the permittee to continue Tier Three obligations through the permit renewal process. 2. Qualitative Monitoring Requirements The purpose of qualitative monitoring is to evaluate the effectiveness of the Stormwater Pollution Prevention Plan(SPPP)and identify new potential sources of stormwater pollution. Qualitative monitoring of stormwater outfalls must be performed during a measurable storm event. Qualitative monitoring requires a visual inspection of each stormwater outfall regardless of representative outfall status. Qualitative monitoring shall be performed semi-annually as specified below, and during required analytical monitoring events (unless the permittee is required to perform further qualitative monitoring per the Qualitative Monitoring Response, below). Inability to monitor because of adverse weather conditions must be documented in the SPPP and recorded on the Qualitative Monitoring Report form (see Adverse Weather in Definitions). Only SDOs discharging stormwater associated with industrial activity must be monitored (See Definitions). In the event an atypical condition is noted at a stormwater discharge outfall,the permittee shall document the suspected cause of the condition and any actions taken in response to the discovery. This documentation will be maintained with the SPPP. Page 11 of 27 Permit NC0004308 Qualitative Monitoring Requirements Monitoring Discharge Characteristics Frequencyl Location2 Color semi-annual SDO Odor semi-annual SDO Clarity semi-annual SDO Floating Solids semi-annual SDO Suspended Solids semi-annual SDO Foam semi-annual SDO Oil Sheen semi-annual SDO Erosion or deposition at the outfall semi-annual SDO Other obvious indicators of stormwater pollution semi-annual SDO Footnotes: 1. Monitoring Frequency: Twice per year during a measureable storm event unless other provisions of this permit prompt monthly monitoring. See schedule of monitoring periods through the end of this permitting cycle. The permittee must continue qualitative monitoring throughout the permit renewal process until a new permit is issued. 2. Monitoring Location: Qualitative monitoring shall be performed at each stormwater discharge outfall(SDO)regardless of representative outfall status. A minimum of 60 days must separate monitoring dates, unless additional sampling has been instituted as part of other analytical monitoring requirements in this permit. If the permittee's qualitative monitoring indicates that existing stormwater Best Management Practices (BMPs) are ineffective, or that significant stormwater contamination is present, the permittee shall investigate potential causes,evaluate the feasibility of corrective action,and implement those corrective actions within 60 days, per the Qualitative Monitoring Response, below. A written record of the permittee's investigation,evaluation,and response actions shall be kept in the SPPP. Qualitative Monitoring Response Qualitative monitoring is for the purposes of evaluating SPPP effectiveness,identifying new potential sources of stormwater pollution,and prompting the permittee's response to pollution. If the permittee repeatedly fails to respond effectively to correct problems identified by qualitative monitoring, or if the discharge causes or contributes to a water quality standard violation, DEMLR may but is not limited to: • require that the permittee revise,increase,or decrease the monitoring frequency for some or all parameters (analytical or qualitative) • require the permittee to install structural stormwater controls; • require the permittee to implement other stormwater control measures; • require the permittee to perform upstream and downstream monitoring to characterize impacts on receiving waters;or • require the permittee implement site modifications to qualify for a No Exposure Exclusion. Page 12 of 27 Permit NC0004308 B.(2.) STORMWATER POLLUTION PREVENTION PLAN The permittee shall develop and implement a Stormwater Pollution Prevention Plan(SPPP). The SPPP shall be maintained on site unless exempted from this requirement by DEMLR. The SPPP is public information in accordance with Part II,Standard Conditions,Section E Paragraph 10 of this permit. The SPPP shall include, at a minimum,the following items: 1. Site Overview. The Site Overview shall provide a description of the physical facility and the potential pollutant sources that may be expected to contribute to contamination of stormwater discharges. The Site Overview shall contain the following: (a) A general location map (USGS quadrangle map or appropriately drafted equivalent map), showing the facility's location in relation to transportation routes and surface waters;the name of the receiving waters to which the stormwater outfalls discharge,or if the discharge is to a municipal separate storm sewer system, the name of the municipality and the ultimate receiving waters; and accurate latitude and longitude of the points of stormwater discharge associated with industrial activity. The general location map(or alternatively the site map)shall identify whether any receiving waters are impaired (on the state's 303(d)list of impaired waters)or if the site is located in a watershed for which a TMDL has been established,and what the parameters of concern are. (b) A narrative description of storage practices,loading and unloading activities,outdoor process areas, dust or particulate generating or control processes, and waste disposal practices. A narrative description of the potential pollutants that could be expected to be present in the stormwater discharge from each outfall. (c) A site map drawn at a scale sufficient to clearly depict: the site property boundary; the stormwater discharge outfalls; all on-site and adjacent surface waters and wetlands; industrial activity areas (including storage of materials, disposal areas, process areas,loading and unloading areas,and haul roads); site topography and finished grade; all drainage features and structures; drainage area boundaries and total contributing area for each outfall; direction of flow in each drainage area; industrial activities occurring in each drainage area; buildings; stormwater Best Management Practices (BMPs); and impervious surfaces. The site map must indicate the percentage of each drainage area that is impervious, and the site map must include a graphic scale indication and north arrow. (d) A list of significant spills or leaks of pollutants during the previous three(3)years and any corrective actions taken to mitigate spill impacts. (e) Certification that the stormwater outfalls have been evaluated for the presence of non-stormwater discharges. The permittee shall re-certify annually that the stormwater outfalls have been evaluated for the presence of non-stormwater discharges. If non-stormwater discharges are present, the permittee shall identify the source and record whether the discharge is otherwise permitted (by rule or a different permit). The permittee shall evaluate the environmental significance of the non- stormwater discharges and include a summary written record with the certification. The certification statement and summary written record shall be retained with the SPPP,and shall be dated and signed in accordance with the requirements found in Standard Conditions for NPDES Permits,Part II,Section B.11(b). (f) If a permanent source of non-stormwater flow is identified in accordance with B.(2)1.(e)the permittee shall notify DWR and DEMLR.The notification must include a description and frequency of discharge for the identified non-stormwater flow.The notification must be submitted to the following addresses: Page 13 of 27 Permit NC0004308 DWR/NPDES Complex Permitting Unit 1617 Mail Service Center Raleigh,NC 27699-1617 DEMLR/ Stormwater Permitting Program 1612 Mail Service Center Raleigh,NC 27699-1612. 2. Stormwater Management Strategy. The Stormwater Management Strategy shall contain a narrative description of the materials management practices employed which control or minimize the stormwater exposure of significant materials, including structural and nonstructural measures. The Stormwater Management Strategy,at a minimum,shall incorporate the following: (a) Feasibility Study. A review of the technical and economic feasibility of changing the methods of operations and/or storage practices to eliminate or reduce exposure of materials and processes to rainfall and run-on flows. Wherever practical, the permittee shall prevent exposure of all storage areas, material handling operations, and manufacturing or fueling operations. In areas where elimination of exposure is not practical, this review shall document the feasibility of diverting the stormwater run-on away from areas of potential contamination. (b) Secondary Containment Requirements and Records. Secondary containment is required for: bulk storage of liquid materials; storage in any amount of Section 313 of Title III of the Superfund Amendments and Reauthorization Act(SARA)water priority chemicals;and storage in any amount of hazardous substances,in order to prevent leaks and spills from contaminating stormwater runoff. A table or summary of all such tanks and stored materials and their associated secondary containment areas shall be maintained. If the secondary containment devices are connected to stormwater conveyance systems,the connection shall be controlled by manually activated valves or other similar devices(which shall be secured closed with a locking mechanism). Any stormwater that accumulates in the containment area shall be at a minimum visually observed for color, foam, outfall staining, visible sheens and dry weather flow, prior to release of the accumulated stormwater. Accumulated stormwater shall be released if found to be uncontaminated by any material. Records documenting the individual making the observation, the description of the accumulated stormwater,and the date and time of the release shall be kept for a period of five(5)years. For facilities subject to a federal oil Spill Prevention, Control, and Countermeasure Plan (SPCC), any portion of the SPCC Plan fully compliant with the requirements of this permit may be used to demonstrate compliance with this permit. (c) BMP Summary. A listing of site structural and non-structural Best Management Practices (BMPs) shall be provided. The installation and implementation of BMPs shall be based on the assessment of the potential for sources to contribute significant quantities of pollutants to stormwater discharges and on data collected through monitoring of stormwater discharges. The BMP Summary shall include a written record of the specific rationale for installation and implementation of the selected site BMPs. The BMP Summary shall be reviewed and updated annually. 3. Spill Prevention and Response Procedures. The Spill Prevention and Response Procedures(SPRP)shall incorporate an assessment of potential pollutant sources based on a materials inventory of the facility. Facility personnel responsible for implementing the SPRP shall be identified in a written list incorporated into the SPRP and signed and dated by each individual acknowledging their responsibilities for the plan. A responsible person shall be on-site at all times during facility operations that have increased potential to contaminate stormwater runoff through spills or exposure of materials associated with the facility operations. The SPRP must be site stormwater specific. Therefore, an oil Spill Prevention Control and Countermeasure plan(SPCC) may be a component of the SPRP,but may not be sufficient to completely Page 14 of 27 Permit NC0004308 address the stormwater aspects of the SPRP. The common elements of the SPCC with the SPRP may be incorporated by reference into the SPRP. 4. Preventative Maintenance and Good Housekeeping Program. A preventative maintenance and good housekeeping program shall be developed and implemented. The program shall address all stormwater control systems(if applicable),stormwater discharge outfalls,all on-site and adjacent surface waters and wetlands, industrial activity areas (including material storage areas, material handling areas, disposal areas, process areas, loading and unloading areas, and haul roads), all drainage features and structures, and existing structural BMPs. The program shall establish schedules of inspections, maintenance, and housekeeping activities of stormwater control systems, as well as facility equipment, facility areas, and facility systems that present a potential for stormwater exposure or stormwater pollution where not already addressed under another element of the SPPP. Inspection of material handling areas and regular cleaning schedules of these areas shall be incorporated into the program. Timely compliance with the established schedules for inspections,maintenance,and housekeeping shall be recorded and maintained in the SPPP. 5. Facility Inspections. Inspections of the facility and all stormwater systems shall occur as part of the Preventative Maintenance and Good Housekeeping Program at a minimum on a semi-annual schedule, once during the first half of the year(January to June),and once during the second half(July to December), with at least 60 days separating inspection dates(unless performed more frequently than semi-annually). These facility inspections are different from, and in addition to, the stormwater discharge characteristic monitoring at the outfalls required in Part I Section B.(1.). 6. Employee Training. Training programs shall be developed and training provided at a minimum on an annual basis for facility personnel with responsibilities for: spill response and cleanup, preventative maintenance activities, and for any of the facility's operations that have the potential to contaminate stormwater runoff. The facility personnel responsible for implementing the training shall be identified, and their annual training shall be documented by the signature of each employee trained. 7. Responsible Party. The SPPP shall identify a specific position or positions responsible for the overall coordination, development, implementation, and revision of the SPPP. Responsibilities for all components of the SPPP shall be documented and position assignments provided. 8. SPPP Amendment and Annual Update. The permittee shall amend the SPPP whenever there is a change in design, construction, operation, site drainage, maintenance, or configuration of the physical features which may have a significant effect on the potential for the discharge of pollutants to surface waters. All aspects of the SPPP shall be reviewed and updated on an annual basis.The annual update shall include: (a) an updated list of significant spills or leaks of pollutants for the previous three (3) years, or the notation that no spills have occurred(element of the Site Overview); (b) a written re-certification that the stormwater outfalls have been evaluated for the presence of non- stormwater discharges (element of the Site Overview); (c) a documented re-evaluation of the effectiveness of the on-site stormwater BMPs (BMP Summary element of the Stormwater Management Strategy). (d) a review and comparison of sample analytical data to benchmark values (if applicable) over the past year, including a discussion about Tiered Response status. The permittee shall use the Annual Summary Data Monitoring Report (DMR) form, available from the DEMLR Stormwater Permitting Program's website (See 'Monitoring Forms' here: http://portal.ncdenr.org/web/lr/npdes-stormwater). The Director may notify the permittee when the SPPP does not meet one or more of the minimum requirements of the permit. Within 30 days of such notice, the permittee shall submit a time schedule to the Director for modifying the SPPP to meet minimum requirements. The permittee shall provide Page 15 of 27 Permit NC0004308 certification in writing in accordance with Part II, Standard Conditions, Section B, Paragraph 11 to the Director that the changes have been made. 9. SPPP Implementation. The permittee shall implement the Stormwater Pollution Prevention Plan and all appropriate BMPs consistent with the provisions of this permit,in order to control contaminants entering surface waters via stormwater. Implementation of the SPPP shall include documentation of all monitoring, measurements, inspections, maintenance activities, and training provided to employees, including the log of the sampling data and of actions taken to implement BMPs associated with the industrial activities, including vehicle maintenance activities. Such documentation shall be kept on-site for a period of five(5)years and made available to the Director or the Director's authorized representative immediately upon request. B.(3.) STORMWATER DEFINITIONS 1. Adverse Weather Adverse conditions are those that are dangerous or create inaccessibility for personnel, such as local flooding, high winds, or electrical storms, or situations that otherwise make sampling impractical. When adverse weather conditions prevent the collection of samples during the sample period, the permittee must take a substitute sample or perform a visual assessment during the next qualifying storm event. Documentation of an adverse event (with date, time and written narrative) and the rationale must be included with your SPPP records. Adverse weather does not exempt the permittee from having to file a monitoring report in accordance with the sampling schedule. Adverse events and failures to monitor must also be explained and reported on the relevant DMR. 2. Allowable Non-Stormwater Discharges Non-stormwater discharges which shall be allowed in the stormwater conveyance system include: a. Uncontaminated groundwater, foundation drains, air-conditioner condensate without added chemicals, springs, discharges of uncontaminated potable water, waterline and fire hydrant flushings,water from footing drains,flows from riparian habitats and wetlands. b. Discharges resulting from fire-fighting or fire-fighting training,or emergency shower or eye wash as a result of use in the event of an emergency. 3. Best Management Practices(BMPs) Measures or practices used to reduce the amount of pollution entering surface waters. BMPs may take the form of a process,activity,or physical structure. More information on BMPs can be found at https://www.epa.gov/npdes/national-menu-best-management-practices-burps-stormwater#edu. 4. Bypass(stormwater) A bypass is the known diversion of stormwater from any portion of a stormwater control facility including the collection system,which is not a designed or established operating mode for the facility. 5. Bulk Storage of Liquid Products Liquid raw materials,intermediate products,manufactured products,waste materials,or by-products with a single above ground storage container having a capacity of greater than 660 gallons or with multiple above ground storage containers located in close proximity to each other having a total combined storage capacity of greater than 1,320 gallons. 6. DEMLR The Division of Energy,Mineral,and Land Resources. Page 16 of 27 Permit NC0004308 7. Landfill A disposal facility or part of a disposal facility where waste is placed in or on land and which is not a land treatment facility, a surface impoundment, an injection well, a hazardous waste long-term storage facility or a surface storage facility. 8. Measureable Storm Event A storm event that results in an actual discharge from the permitted site outfall. The previous measurable storm event must have been at least 72 hours prior. The 72-hour storm interval may not apply if the permittee is able to document that a shorter interval is representative for local storm events during the sampling period,and obtains approval from the local DEMLR Regional Office. Two copies of this information and a written request letter shall be sent to the local DEMLR Regional Office. After authorization by the DEMLR Regional Office, a written approval letter must be kept on site in the permittee's SPPP. 9. No Exposure A condition of no exposure means that all industrial materials and activities are protected by a storm resistant shelter or acceptable storage containers to prevent exposure to rain, snow, snowmelt, or runoff. Industrial materials or activities include,but are not limited to,material handling equipment or activities,industrial machinery,raw materials,intermediate products,by-products,final products, or waste products [40 CFR 122.26(b)(14)]. DEMLR may grant a No Exposure Exclusion from NPDES Stormwater Permitting requirements only if a facility complies with the terms and conditions described in 40 CFR§122.26(g). 10. Point Source Discharge of Stormwater Any discernible,confined and discrete conveyance including,but not specifically limited to,any pipe, ditch, channel, tunnel, conduit, well, or discrete fissure from which stormwater is or may be discharged to waters of the state. 11. Representative Outfall Status When it is established that the discharge of stormwater runoff from a single outfall is representative of the discharges at multiple outfalls, the Division may grant representative outfall status. Representative outfall status allows the permittee to perform analytical monitoring at a reduced number of outfalls. 12. Secondary Containment Spill containment for the contents of the single largest tank within the containment structure plus sufficient freeboard to contain the 25-year,24-hour storm event. 13. Section 313 Water Priority Chemical A chemical or chemical category which: a. Is listed in 40 CFR 372.65 pursuant to Section 313 of Title III of the Superfund Amendments and Reauthorization Act(SARA) of 1986,also titled the Emergency Planning and Community Right- to-Know Act of 1986; b. Is present at or above threshold levels at a facility subject to SARA title III,Section 313 reporting requirements;and c. Meets at least one of the following criteria: i. Is listed in appendix D of 40 CFR part 122 on Table II (organic priority pollutants),Table III (certain metals,cyanides,and phenols) or Table IV(certain toxic pollutants and hazardous substances); ii. Is listed as a hazardous substance pursuant to section 311(b)(2)(A)of the CWA at 40 CFR 116.4;or iii. Is a pollutant for which EPA has published acute or chronic water quality criteria. Page 17 of 27 Permit NC0004308 14. Significant Materials Includes,but is not limited to:raw materials;fuels;materials such as solvents,detergents,and plastic pellets; finished materials such as metallic products; raw materials used in food processing or production; hazardous substances designated under section 101(14) of CERCLA; any chemical the facility is required to report pursuant to section 313 of Title III of SARA; fertilizers; pesticides; and waste products such as ashes,slag and sludge that have the potential to be released with stormwater discharges. 15. Significant Spills Includes,but is not limited to: releases of oil or hazardous substances in excess of reportable quantities under section 311 of the Clean Water Act (Ref: 40 CFR 110.3and 40 CFR 117.3) or section 102 of CERCLA(Ref:40 CFR 302.4). 16. Stormwater Discharge Outfall(SDO) The point of departure of stormwater from a discernible,confined,or discrete conveyance,including but not limited to,storm sewer pipes,drainage ditches,channels,spillways,or channelized collection areas,from which stormwater flows directly or indirectly into waters of the State of North Carolina. 17. Stormwater Runoff The flow of water which results from precipitation and which occurs immediately following rainfall or as a result of snowmelt. 18. Stormwater Associated with Industrial Activity The discharge from any point source which is used for collecting and conveying stormwater and which is directly related to manufacturing,processing or raw material storage areas at an industrial site. Facilities considered to be engaged in"industrial activities"include those activities defined in 40 CFR 122.26(b)(14). The term does not include discharges from facilities or activities excluded from the NPDES program. 19. Stormwater Pollution Prevention Plan A comprehensive site-specific plan which details measures and practices to reduce stormwater pollution and is based on an evaluation of the pollution potential of the site. 20. Total Maximum Daily Load(TMDL) TMDLs are written plans for attaining and maintaining water quality'standards,in all seasons, for a specific water body and pollutant. A list of approved TMDLs for the state of North Carolina can be found at http;//portal.ncdenr.org/web/wy/ps/mtu/tmdl. 21. Vehicle Maintenance Activity Vehicle rehabilitation,mechanical repairs,painting, fueling,lubrication,vehicle cleaning operations, or airport deicing operations. 22. Visible Sedimentation Solid particulate matter,both mineral and organic,that has been or is being transported by water,air, gravity,or ice from its site of origin which can be seen with the unaided eye. 23. 25-year,24 hour Storm Event The maximum 24-hour precipitation event expected to be equaled or exceeded,on the average,once in 25 years. Page 18 of 27 Permit NC0004308 SECTION C-SPECIAL CONDITIONS CO.) ACUTE TOXICITY PASS/FAIL PERMIT LIMIT (Quarterly;Outfall 005) [15A NCAC 02B .0200 et seq.] The permittee shall conduct acute toxicity tests on a quarterly basis using protocols defined in the North Carolina Procedure Document entitled "Pass/Fail Methodology For Determining Acute Toxicity In A Single Effluent Concentration"(Revised December 2010 or subsequent versions).The monitoring shall be performed as a Fathead Minnow (Pimephales promelas) 24 hour static test. The effluent concentration at which there may be at no time significant acute mortality is 90% (defined as treatment two in the procedure document). The tests will be performed once during each calendar quarter(January-March,April-June,July-September and October-December). Effluent sampling for this testing must be obtained during representative effluent discharge and shall be performed at the NPDES permitted final effluent discharge below all treatment processes. 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. 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 TGE6C. Additionally,DWR Form AT-2(original)is to be sent to the following address: Attention: North Carolina Division of Water Resources Aquatic Toxicology Branch,Water Sciences Section 1621 Mail Service Center Raleigh,North Carolina 27699-1621 Completed Aquatic Toxicity Test Forms shall be filed with the Aquatic Toxicology Branch no later than 30 days after the end of the reporting period for which the report is made. 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 there be no discharge of flow from the facility during a month in which toxicity monitoring is required, the permittee will complete the information located at the top of the aquatic toxicity(AT)test form indicating the facility name, permit number, pipe number,county, and the month/year of the report with the notation of"No Flow" in the comment area of the form. The report shall be submitted to the Environmental Sciences Section at the address cited above. Should the permittee fail to monitor during a month in which toxicity monitoring is required, 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.Assessment of toxicity compliance is based on the toxicity testing quarter,which is the three month time interval that begins on the first day of the month in which toxicity testing is required by this permit and continues until the final day of the third month. Should any test data from either these monitoring requirements or tests performed by the North Carolina Division of Water Resources indicate potential impacts to the receiving stream,this permit may be re-opened and modified to include alternate monitoring requirements or limits. Page 19 of 27 Permit NC0004308 If the Permittee monitors any pollutant more frequently than required by this permit, the results of such monitoring shall be included in the calculation&reporting of the data submitted on the DMR&all AT Form submitted. 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 follow-up testing to be completed no later than the last day of the month following the month of the initial monitoring. C.(2.)ACUTE TOXICITY MONITORING (Quarterly;Outfalls 011 and 013) [15A NCAC 02B .0200 et seq.] The permittee shall conduct acute toxicity tests on a quarterly basis using protocols defined as definitive in E.P.A. Document EPA/600/4-90/027 entitled "Methods for Measuring the Acute Toxicity of Effluents to Freshwater and Marine Organisms." The monitoring shall be performed as a Fathead Minnow (Pimephales promelas) 24-hour static test. Effluent samples for self-monitoring purposes must be obtained during representative effluent discharge below all waste treatment. The tests will be performed on a discharge event during each calendar quarter(January-March,April-June,July-September and October-December). The parameter code for this test is TAE6C.All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge Form (MR-1) for the month in which it was performed, using the appropriate parameter code. Additionally,DWR Form AT-1 (original)is to be sent to the following address: Attention: North Carolina Division of Water Resources Aquatic Toxicology Branch,Water Sciences Section 1621 Mail Service Center Raleigh,North Carolina 27699-1621 Completed Aquatic Toxicity Test Forms shall be filed with the Aquatic Toxicology Branch no later than 30 days after the end of the reporting period for which the report is made 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 there be no discharge of flow from the facility during a quarter in which toxicity monitoring is required, the permittee will complete the information located at the top of the aquatic toxicity (AT) test form indicating the facility name,permit number,pipe number,county,and the month/year of the report with the notation of"No Flow" in the comment area of the form. The report shall be submitted to the Environmental Sciences Branch at the address cited above. Should any test data from this monitoring requirement or tests performed by the North Carolina Division of Water Resources 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 follow-up testing to be completed no later than the last day of the month following the month of the initial monitoring. Page 20 of 27 Permit NC0004308 C.(3.) CHRONIC TOXICITY PASS/FAIL PERMIT LIMIT(Quarterly;Outfall 012) [15A NCAC 02B .0200 et seq.] The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant mortality to Ceriodaphnia dubia at an effluent concentration of 3.8%at Outfall 012. The permit holder shall perform at a minimum, quarterly monitoring using test procedures outlined in the "North Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised February 1998,or subsequent versions or "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised-February 1998) or subsequent versions. Effluent samples for self-monitoring purposes must be obtained during representative effluent discharge below all waste treatment. The tests will be performed once during each calendar quarter(January-March,April-June,July-September and October-December). If the test procedure performed as the first test of any single quarter results in a failure or ChV below the permit limit, then multiple-concentration testing shall be performed at a minimum, in each of the two following months as described in"North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised-February 1998)or subsequent versions. The chronic value for multiple concentration tests will be determined using the geometric mean of the highest concentration having no detectable impairment of reproduction or survival and the lowest concentration that does have a detectable impairment of reproduction or survival. The definition of"detectable impairment," collection methods, exposure regimes, and further statistical methods are specified in the "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised-February 1998)or subsequent versions. All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge Monitoring Form(MR-1)for the months in which tests were performed,using the parameter code TGP3B for the pass/fail results and THP3B for the Chronic Value. Additionally,DWR Form AT-3(original)is to be sent to the following address: Attention: North Carolina Division of Water Resources Aquatic Toxicology Branch,Water Sciences Section 1621 Mail Service Center Raleigh,North Carolina 27699-1621 Completed Aquatic Toxicity Test Forms shall be filed with the Aquatic Toxicology Branch no later than 30 days after the end of the reporting period for which the report is made. Test data shall be complete, accurate, include all supporting chemical/physical measurements and all concentration/response data, and be certified by laboratory supervisor and ORC or approved designate signature. Total residual chlorine of the effluent toxicity sample must be measured and reported if chlorine is employed for disinfection of the waste stream. Should there be no discharge of flow from the facility during a quarter in which toxicity monitoring is required,the Permittee will complete the information located at the top of the aquatic toxicity (AT) test form indicating the facility name,permit number,pipe number,county,and the month/year of the report with the notation of"No Flow" in the comment area of the form. The report shall be submitted to the Environmental Sciences Branch at the address cited above. Should the Permittee fail to monitor during a month in which toxicity monitoring is required,monitoring will be required during the following month. Should any test data from this monitoring requirement or tests performed by the North Carolina Division of Water Resources 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, minimum control organism reproduction, and appropriate environmental controls, shall constitute an invalid test and will require immediate follow-up testing to be completed no later than the last day of the month following the month of the initial monitoring. Page 21 of 27 Permit NC0004308 C.(4.) ACUTE TOXICITY MONITORING (Annual;Outfall 019) [15A NCAC 02B .0200 et seq.] The permittee shall conduct annual toxicity tests using protocols defined as definitive in E.P.A. Document EPA/600/4-90/027 entitled "Methods for Measuring the Acute Toxicity of Effluents to Freshwater and Marine Organisms." The monitoring shall be performed as a Fathead Minnow(Pimephales promelas) 24-hour static test. Effluent samples for self-monitoring purposes must be obtained below all waste treatment. The permittee will conduct one test annually, with the annual period beginning in January of the calendar year of the effective date of the permit. The annual toxicity test must be performed by June 30. Should there be no discharge of flow from the facility during the six month period January 1-June 30,the permittee will complete the information located at the top of the aquatic toxicity (AT) test form indicating the facility name, permit number, pipe number, county and in the comments section indicate"No Flow for January 1-June 30, (calendar year)." The report must be signed and submitted to the Environmental Sciences Section at the address noted below. If no discharge event occurs from January 1-June 30,yet a discharge event occurs from July 1-December 31, then the facility must perform toxicity monitoring and report the data as noted below. The parameter code for this test is TAE6C.All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge Form (MR-1) for the month in which it was performed, using the appropriate parameter code. Additionally,DWR Form AT-1 (original) is to be sent to the following address: Attention: North Carolina Division of Water Resources Aquatic Toxicology Branch,Water Sciences Section 1621 Mail Service Center Raleigh,North Carolina 27699-1621 Completed Aquatic Toxicity Test Forms shall be filed with the Aquatic Toxicology Branch no later than 30 days after the end of the reporting period for which the report is made. 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 test data from either these monitoring requirements or tests performed by the North Carolina Division of Water Resources 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 follow-up testing to be completed no later than the last day of the month following the month of the initial monitoring. C.(5.) PERMIT REOPENER [G.S. 143-215.1(b)] The permitttee shall notify the Division if any industrial activity is proposed to take place at the facility which changes the characteristics of the wastewaters as authorized in this permit or adds additional sources of wastewater. A notification shall be submitted to the Division describing the new activities and expected wastewater characteristics 90 days prior to proposed start of operations. Page 22 of 27 Permit NC0004308 C.(6.) ELECTRONIC REPORTING OF DISCHARGE MONITORING REPORTS [G.S. 143-215.1(b)] Federal regulations require electronic submittal of all discharge monitoring reports (DMRs) and program reports.The final NPDES Electronic Reporting Rule was adopted and became effective on December 21,2015. NOTE: This special condition supplements or supersedes the following sections within Part II of this permit (Standard Conditions for NPDES Permits): • Section B. (11.) Signatory Requirements • Section D. (2.) Reporting • Section D. (6.) Records Retention • Section E. (5.) Monitoring Reports 1. Reporting Requirements [Supersedes Section D. (2.) and Section E. (5.) (all The permittee shall report discharge monitoring data electronically using the NC DWR's Electronic Discharge Monitoring Report(eDMR)internet application. Monitoring results obtained during the previous month(s) shall be summarized for each month and submitted electronically using eDMR. The eDMR system allows permitted facilities to enter monitoring data and submit DMRs electronically using the internet. Until such time that the state's eDMR application is compliant with EPA's Cross-Media Electronic Reporting Regulation (CROMERR), permittees will be required to submit all discharge monitoring data to the state electronically using eDMR and will be required to complete the eDMR submission by printing,signing,and submitting one signed original and a copy of the computer printed eDMR to the following address: NC DEQ/ Division of Water Resources/ Water Quality Permitting Section ATTENTION: Central Files 1617 Mail Service Center Raleigh,North Carolina 27699-1617 If a permittee is unable to use the eDMR system due to a demonstrated hardship or due to the facility being physically located in an area where less than 10 percent of the households have broadband access, then a temporary waiver from the NPDES electronic reporting requirements may be granted and discharge monitoring data may be submitted on paper DMR forms (MR 1, 1.1, 2, 3) or alternative forms approved by the Director. Duplicate signed copies shall be submitted to the mailing address above. See "How to Request a Waiver from Electronic Reporting" section below. Regardless of the submission method, the first DMR is due on the last day of the month following the issuance of the permit or in the case of a new facility, on the last day of the month following the commencement of discharge. Starting on December 21, 2020, the permittee must electronically report the following compliance monitoring data and reports,when applicable: • Sewer Overflow/Bypass Event Reports; • Pretreatment Program Annual Reports;and • Clean Water Act(CWA)Section 316(b) Annual Reports. The permittee may seek an electronic reporting waiver from the Division(see"How to Request a Waiver from Electronic Reporting" section below). Page 23 of 27 Permit NC0004308 2. Electronic Submissions In accordance with 40 CFR 122.41(1)(9),the permittee must identify the initial recipient at the time of each electronic submission. The permittee should use the EPA's website resources to identify the initial recipient for the electronic submission. Initial recipient of electronic NPDES information from NPDES-regulated facilities means the entity(EPA or the state authorized by EPA to implement the NPDES program) that is the designated entity for receiving electronic NPDES data [see 40 CFR 127.2(b)]. EPA plans to establish a website that will also link to the appropriate electronic reporting tool for each type of electronic submission and for each state. Instructions on how to access and use the appropriate electronic reporting tool will be available as well. Information on EPA's NPDES Electronic Reporting Rule is found at: https://www.federalregister.gov/documents/2015/10/22/2015-24954/national-pollutant-discharge- elimination-system-npdes-electronic-reporting-rule Electronic submissions must start by the dates listed in the"Reporting Requirements" section above. 3. How to Request a Waiver from Electronic Reporting The permittee may seek a temporary electronic reporting waiver from the Division. To obtain an electronic reporting waiver, a permittee must first submit an electronic reporting waiver request to the Division. Requests for temporary electronic reporting waivers must be submitted in writing to the Division for written approval at least sixty(60)days prior to the date the facility would be required under this permit to begin submitting monitoring data and reports. The duration of a temporary waiver shall not exceed 5 years and shall thereupon expire. At such time, monitoring data and reports shall be submitted electronically to the Division unless the permittee re-applies for and is granted a new temporary electronic reporting waiver by the Division. Approved electronic reporting waivers are not transferrable. Only permittees with an approved reporting waiver request may submit monitoring data and reports on paper to the Division for the period that the approved reporting waiver request is effective. Information on eDMR and the application for a temporary electronic reporting waiver are found on the following web page: http://deq.nc.gov/about/divisions/water-resources/edmr 4. Signatory Requirements [Supplements Section B. (11.) (b)and Supersedes Section B. (11.) (d)l All eDMRs submitted to the permit issuing authority shall be signed by a person described in Part II, Section B. (11.)(a) or by a duly authorized representative of that person as described in Part II,Section B. (11.)(b). A person, and not a position, must be delegated signatory authority for eDMR reporting purposes. For eDMR submissions, the person signing and submitting the DMR must obtain an eDMR user account and login credentials to access the eDMR system. For more information on North Carolina's eDMR system,registering for eDMR and obtaining an eDMR user account,please visit the following web page: http://deq.nc.gov/about/divisions/water-resources/edmr Page 24 of 27 Permit NC0004308 Certification. Any person submitting an electronic DMR using the state's eDMR system shall make the following certification [40 CFR 122.22]. NO OTHER STATEMENTS OF CERTIFICATION WILL BE ACCEPTED: "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 submitted 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 fines and imprisonment for knowing violations." 5. Records Retention [Supplements Section D. (6.4 The permittee shall retain records of all Discharge Monitoring Reports, including eDMR submissions. These records or copies shall be maintained for a period of at least 3 years from the date of the report. This period may be extended by request of the Director at arty time [40 CFR 122.41]. C.(7.)MIXING ZONE (Outfall 012) (a.) The mixing zone for outfall 012 consists of a circular area with a radius of 5.6 m from the diffuser. (b.) Instream Sampling shall be collected as follows: PARAMETER MONITORING REQUIREMENTS Measurement Sample 1 Frequency Type Sample Location pH Monthly Grab MZ1,MZ2,MZ3 Total Cyanide Monthly Grab MZ1,MZ2,MZ3 Total Fluoride Monthly Grab MZ1,MZ2,MZ3 Trichloroethylene(TCE) Monthly Grab MZ1,MZ2,MZ3 Footnote: 1. MZ1 - Lake Badin 20 feet from the diffuser on a parallel line projected from the diffuser. MZ2- Lake Badin 20 feet from the diffuser on a perpendicular line projected from the diffuser (oriented SE). MZ3 - Lake Badin 20 feet from the diffuser on a perpendicular line projected from the diffuser (oriented NW). For each instream sampling location, samples must be collected at the surface and at depth of approximately 3.5 meters. (c.) Sampling results shall be reported in the DMRs.See special condition C.(6.) Page 25 of 27 Permit NC0004308 / 'r 0/ i:.'R1,.1g:,.\4,,,1,,/ K_,7;,-- ~'- / / // / '1. (/ f !'•/t�l,r,.o k,(,\ r v '. /- . -l-i.„..t........•e ,\:/,\ri r, ..,.* / f _'.: i1 ' J Badin eke ',fit.\�__ ,_-- „f— f 1-1,/,'(:,i' .l,-i A i1.j h-,",/...•C,-/Y\_ /-1,.r\'-)/ I,,//.T0 c.1/s S,4l. (, n � •;. \'� �,„_-+`lam,\;I, '... ,; -z-.-,-7.:,(,:,,,--,-;.'M,-,j-;,/,,/-,7\- .1./..,_,I\A)i/ '.4,.7,,,"'-\',.,':,\'.„ y�. � / , ' fi ) /" t!, /1 � ; ;�/ �../':.J�I iflf/- 7 ,,% �';J 1! Outfall 013 ,1 Outfall 019 ��" ,�� p '/, 1�; ';'N� J 1• r., i ! ` � ., 11 1{�`� , Outfall 012 J _ !1 { ( ; >s -: c i 4; /f i11 Outfall011 r /. \ \\\\ ::;,14ti+ \ ,/ ,,` titrip Outfall 022 'a',/ f` /'• Outfall 020 /,. \\ \-- (:,id.,,ir- , s• Ii.4,° I 1: ..fr 1- 9W.:'-`;-"kg/ X",'‘!\4:-j_.-1' -) ..-::::...:::...:-"...'..: • ' .--- //ealkw,...,---=,-•.‘.. ,-,/l _ j! }f \ �` r( q --- ,it., `~`1 ifr `,,,, rr' I ', Outfall 002 - I. I ' .)t1/ �:.'p " I 1 ,: =1 ,:,01))1,7 iiii!of L,,iii, II ' ir.,\4 -•:----? C's://7"111/ -.\\:,....:Z.'1- 1 11i r _,__ ___,:‘,...„/"-- L ii.`..:,:, 'r,i , ".., .-...../ ( '�) 4 `I' ( \ (��'fir / ``/ • �JI//�/ //.: •yam! '. / \11L Spy -,, Outfall 004 1reAPM261-41-1 4 -,,-klre,/.?.-`,., A/_�' !%f' ! \k,s,-- ,": 't-1 Outfall 018 •�', y�4- ,� Outfall 005 '� / / J;� fll+'I: • , . _ • i, if/71i 0 i t ��'I j ,rr .;�t • �- ' 116 o ,; ;'.* r, /i f • /; `,�/ 'grit,.----;„1, ;;�-� ,� ,``` . 650 • \ , �y+ \` \� Outfall 017 � J J/ �_1 11��1 7-k..;:_-_,---i,vi,f, ,��`,.:��1'..- 72/ i. Outfa11022 �� 1 ;; rr(r /�'r��l�'r r' �� � /, / `ti s_i O' J�+fit'- MCA. ,i),/,,,, , - I I !J .` ' .•`'' . \- ::1' J�i'` `'`'`-r}� \� J, ( , /' >'1 7r y +Jj wi `(�" '.�� J \.J�� , `, ,j ,r, I 1 1 ♦ f • t��. t ' f i',1`� , f /0 iii ) 0 :,,,,i ,,,,,:,. r- ,(0,1) .,. „...li � , ' � � �� 1 � �,` 4� ..l� , in is o, � r $0°—--'---- --::,-' . "r) .\ - 't Nx N_._,---.--'-. 4k) )17/p/ 1---/,•? /•-•"- ii ' " • b fa-Nils:64311 i)_ -I \ -) ii) I \_._ ,/ \T-;---.. -7-)-( ) \j it 1 \ //i,iir,,,, ,,,, ..„...,__,.._....,,„_,,,, , ._ „ , , , , .k s , -„_ 1 ,-.-1,1 } 1t\l‘\\\-X`,,, '/ I I ' \\ 0 /e.* bW,\\./1‘. ‘<- k .0..? ...- I \., A j ......... /, p"-/ _.....-...."-1 0.k''‘ 2 //). / i''ci c, M----;44,Z) -?_.,‘ \kl ,,,i\ _.., t\\‘ r _)( , ; ,(11 \t‘\,_ // i / di ' ,0 Badin Business Park — Stanly County Location Map Receiving Stream: Badin Lake(Yadkin River)and UT to Little Mountain Creek Stream Classification: WS-IV CA&B and WS-IV N T River Basin: Yadkin/Pee Dee Sub-Basin#: 03-07-08 USGS Quad #: F18NE,F18NW Badin&New London, NC NPDES Permit No. NC0004308 Page 26 of 27 Permit NC0004308 Table 1.Outfall Locations Outfall Latitude Longitude 002 35° 24' 29.89" 80° 6' 54.48" 004 35°24' 11.58" 80°7' 11.38" 005 35°24' 9.25" 80°7' 14.73" 011 35°24' 42.59" 80°6' 53.49" 012 35°24' 43.13" 80°6' 50.04" 013 35°24' 50.78" 80°6' 59.26" 017 35°24' 9.04" 80° 7' 14.75" 018 35°24' 12.64" 80° 7' 34.48" 019 35°24' 46.88" 80° 6' 16.53" 020 35°24' 31.45" 80° 6' 57.02" 022 35°24' 7.45" 80° 7' 23.99" Page 27 of 27 NPDES Permit Standard Conditions Page 1 of 18 PART II STANDARD CONDITIONS FOR NPDES PERMITS Section A. Definitions 2/Month Samples are collected twice per month with at least ten calendar days between sampling events.These samples shall be representative of the wastewater discharged during the sample period. 3/Week Samples are collected three times per week on three separate calendar days.These samples shall be representative of the wastewater discharged during the sample period. Act or"the Act" The Federal Water Pollution Control Act,also known as the Clean Water Act(CWA),as amended,33 USC 1251,et. seq. Annual Average The arithmetic mean of all "daily discharges" of a pollutant measured during the calendar year. In the case of fecal coliform,the geometric mean of such discharges. Arithmetic Mean The summation of the individual values divided by the number of individual values. Bypass The known diversion of waste streams from any portion of a treatment facility including the collection system,which is not a designed or established or operating mode for the facility. Calendar Day The period from midnight of one day until midnight of the next day.However,for purposes of this permit,any consecutive 24-hour period that reasonably represents the calendar day may be used for sampling. Calendar Week The period from Sunday through the following Saturday. Calendar Quarter One of the following distinct periods: January through March,April through June,July through September,and October through December. Composite Sample A sample collected over a 24-hour period by continuous sampling or combining grab samples of at least 100 mL in such a manner as to result in a total sample representative of the wastewater discharge during the sample period.The Director may designate the most appropriate method(specific number and size of aliquots necessary,the time interval between grab samples,etc.)on a case-by-case basis. Samples may be collected manually or automatically.Composite samples may be obtained by the following methods: (1) Continuous:a single,continuous sample collected over a 24-hour period proportional to the rate of flow. (2) Constant time/variable volume:a series of grab samples collected at equal time intervals over a 24 hour period of discharge and combined proportional to the rate of flow measured at the time of individual sample collection,or (3) Variable time/constant volume:a series of grab samples of equal volume collected over a 24 hour period with the time intervals between samples determined by a preset number of gallons passing the sampling point. Flow measurement between sample intervals shall be determined by use of a flow recorder and totalizer,and the preset gallon interval between sample collection fixed at no greater than 1/24 of the expected total daily flow at the treatment system,or Version 11/09/2011.2 NPDES Permit Standard Conditions Page 2 of 18 (4) Constant time/constant volume:a series of grab samples of equal volume collected over a 24-hour period at a constant time interval. Use of this method requires prior approval by the Director.This method may only be used in situations where effluent flow rates vary less than 15 percent.The following restrictions also apply: > Influent and effluent grab samples shall be of equal size and of no less than 100 milliliters > Influent samples shall not be collected more than once per hour. > Permittees with wastewater treatment systems whose detention time<24 hours shall collect effluent grab samples at intervals of no greater than 20 minutes apart during any 24-hour period. > Permittees with wastewater treatment systems whose detention time exceeds 24 hours shall collect effluent grab samples at least every six hours;there must be a minimum of four samples during a 24-hour sampling period. Continuous flow measurement Flow monitoring that occurs without interruption throughout the operating hours of the facility.Flow shall be monitored continually except for the infrequent times when there may be no flow or for infrequent maintenance activities on the flow device. Daily Discharge The discharge of a pollutant measured during a calendar day or any 24-hour period that reasonably represents the calendar day for purposes of sampling. For pollutants measured in units of mass,the"daily discharge" is calculated as the total mass of the pollutant discharged over the day. For pollutants expressed in other units of measurement,the "daily discharge"is calculated as the average measurement of the pollutant over the day.(40 CFR 122.2;see also "Composite Sample,"above.) Daily Maximum The highest"daily discharge"during the calendar month. Daily Sampling Parameters requiring daily sampling shall be sampled 5 out of every 7 days per week unless otherwise specified in the permit. Sampling shall be conducted on weekdays except where holidays or other disruptions of normal operations prevent weekday sampling. If sampling is required for all seven days of the week for any permit parameter(s),that requirement will be so noted on the Effluent Limitations and Monitoring Page(s). DWR or"the Division" The Division of Water Resources,Department of Environmental Quality. Effluent Wastewater discharged following all treatment processes from a water pollution control facility or other point source whether treated or untreated. EMC The North Carolina Environmental Management Commission EPA The United States Environmental Protection Agency Facility Closure Cessation of all activities that require coverage under this NPDES permit.Completion of facility closure will allow this permit to be rescinded. Geometric Mean The Nth root of the product of the individual values where N=the number of individual values. For purposes of calculating the geometric mean,values of"0"(or"<[detection level]")shall be considered= 1. Grab Sample Individual samples of at least 100 mL collected over a period of time not exceeding 15 minutes.Grab samples can be collected manually.Grab samples must be representative of the discharge(or the receiving stream,for instream samples). Version 11/09/2011.2 NPDES Permit Standard Conditions Page 3 of 18 Hazardous Substance Any substance designated under 40 CFR Part 116 pursuant to Section 311 of the CWA. Instantaneous flow measurement The flow measured during the minimum time required for the flow measuring device or method to produce a result in that instance.To the extent practical,instantaneous flow measurements coincide with the collection of any grab samples required for the same sampling period so that together the samples and flow are representative of the discharge during that sampling period. Monthly Average(concentration limit) The arithmetic mean of all "daily discharges" of a pollutant measured during the calendar month. In the case of fecal coliform or other bacterial parameters or indicators,the geometric mean of such discharges. Permit Issuing Authority The Director of the Division of Water Resources. Quarterly Average(concentration limit) The arithmetic mean of all samples taken over a calendar quarter. Severe property damage Substantial physical damage to property,damage to the treatment facilities which causes them to become inoperable,or substantial and permanent loss of natural resources which can reasonably be expected to occur in the absence of a bypass. Severe property damage excludes economic loss caused by delays in production. Toxic Pollutant: Any pollutant listed as toxic under Section 307(a)(1)of the CWA. Upset An incident beyond the reasonable control of the Permittee causing unintentional and temporary noncompliance with permit effluent limitations and/or monitoring requirements. An upset does not include noncompliance caused by operational error,improperly designed treatment facilities,inadequate treatment facilities,lack of preventive maintenance,or careless or improper operation. Weekly Average(concentration limit) The arithmetic mean of all "daily discharges" of a pollutant measured during the calendar week. In the case of fecal coliform or other bacterial parameters or indicators,the geometric mean of such discharges. Section B. General Conditions 1. Duty to Comply The Permittee must comply with all conditions of this permit.Any permit noncompliance constitutes a violation of the CWA and is grounds for enforcement action;for permit termination,revocation and reissuance,or modification;or denial of a permit renewal application [40 CFR 122.41]. a. The Permittee shall comply with effluent standards or prohibitions established under section 307(a)of the CWA for toxic pollutants and with standards for sewage sludge use or disposal established under section 405(d)of the CWA within the time provided in the regulations that establish these standards or prohibitions or standards for sewage sludge use or disposal,even if the permit has not yet been modified to incorporate the requirement. b. The CWA provides that any person who violates section[s] 301,302,306,307,308,318 or 405 of the Act,or any permit condition or limitation implementing any such sections in a permit issued under section 402,or any requirement imposed in a pretreatment program approved under sections 402(a)(3)or 402(b)(8)of the Act,is subject to a civil penalty not to exceed$37,500 per day for each violation. [33 USC 1319(d)and 40 CFR 122.41(a)(2)] c. The CWA provides that any person who negligently violates sections 301,302,306,307,308,318,or 405 of the Act,or any condition or limitation implementing any of such sections in a permit issued under section 402 of the Act,or any requirement imposed in a pretreatment program approved under section 402(a)(3)or 402(b)(8)of the Act,is subject to criminal penalties of$2,500 to$25,000 per day of violation,or Version 11/09/2011.2 NPDES Permit Standard Conditions Page 4 of 18 imprisonment of not more than 1 year,or both. In the case of a second or subsequent conviction for a negligent violation,a person shall be subject to criminal penalties of not more than$50,000 per day of violation,or by imprisonment of not more than 2 years,or both. [33 USC 1319(c)(1)and 40 CFR 122.41(a)(2)] d. Any person who knowingly violates such sections,or such conditions or limitations is subject to criminal penalties of$5,000 to$50,000 per day of violation,or imprisonment for not more than 3 years,or both.In the case of a second or subsequent conviction for a knowing violation,a person shall be subject to criminal penalties of not more than$100,000 per day of violation,or imprisonment of not more than 6 years,or both. [33 USC 1319(c)(2)and 40 CFR 122.41(a)(2)] e. Any person who knowingly violates section 301,302,303,306,307,308,318 or 405 of the Act,or any permit condition or limitation implementing any of such sections in a permit issued under section 402 of the Act,and who knows at that time that he thereby places another person in imminent danger of death or serious bodily injury,shall,upon conviction,be subject to a fine of not more than$250,000 or imprisonment of not more than 15 years,or both. In the case of a second or subsequent conviction for a knowing endangerment violation,a person shall be subject to a fine of not more than$500,000 or by imprisonment of not more than 30 years,or both.An organization,as defined in section 309(c)(3)(B)(iii)of the CWA,shall,upon conviction of violating the imminent danger provision,be subject to a fine of not more than$1,000,000 and can be fined up to $2,000,000 for second or subsequent convictions. [40 CFR 122.41(a)(2)] f. Under state law,a civil penalty of not more than$25,000 per violation may be assessed against any person who violates or fails to act in accordance with the terms,conditions,or requirements of a permit. [North Carolina General Statutes § 143-215.6A] g. Any person may be assessed an administrative penalty by the Administrator for violating section 301,302, 306,307,308,318 or 405 of this Act,or any permit condition or limitation implementing any of such sections in a permit issued under section 402 of this Act.Administrative penalties for Class I violations are not to exceed$16,000 per violation,with the maximum amount of any Class I penalty assessed not to exceed $37,500. Penalties for Class II violations are not to exceed$16,000 per day for each day during which the violation continues,with the maximum amount of any Class II penalty not to exceed$177,500. [33 USC 1319(g)(2)and 40 CFR 122.41(a)(3)] 2. Duty to Mitigate The Permittee shall take all reasonable steps to minimize or prevent any discharge or sludge use or disposal in violation of this permit with a reasonable likelihood of adversely affecting human health or the environment[40 CFR 122.41(d)]. 3. Civil and Criminal Liability Except as provided in permit conditions on"Bypassing"(Part II.C.4),"Upsets"(Part II.C.5)and"Power Failures" (Part II.C.7),nothing in this permit shall be construed to relieve the Permittee from any responsibilities,liabilities, or penalties for noncompliance pursuant to NCGS 143-215.3, 143-215.6 or Section 309 of the Federal Act,33 USC 1319. Furthermore,the Permittee is responsible for consequential damages,such as fish kills,even though the responsibility for effective compliance may be temporarily suspended. 4. Oil and Hazardous Substance Liability Nothing in this permit shall be construed to preclude the institution of any legal action or relieve the Permittee from any responsibilities, liabilities,or penalties to which the Permittee is or may be subject to under NCGS 143- 215.75 et seq. or Section 311 of the Federal Act,33 USG 1321. Furthermore,the Permittee is responsible for consequential damages,such as fish kills,even though the responsibility for effective compliance may be temporarily suspended. 5. Property Rights The issuance of this permit does not convey any property rights in either real or personal property,or any exclusive privileges,nor does it authorize any injury to private property or any invasion of personal rights,nor any infringement of Federal,State or local laws or regulations[40 CFR 122.41(g)]. 6. Onshore or Offshore Construction This permit does not authorize or approve the construction of any onshore or offshore physical structures or facilities or the undertaking of any work in any navigable waters. Version 11/09/2011.2 NPDES Permit Standard Conditions Page 5 of 18 • 7. Severability The provisions of this permit are severable. If any provision of this permit,or the application of any provision of this permit to any circumstances,is held invalid,the application of such provision to other circumstances,and the remainder of this permit,shall not be affected thereby [NCGS 150B-23]. 8. Duty to Provide Information The Permittee shall furnish to the Permit Issuing Authority,within a reasonable time,any information which the Permit Issuing Authority may request to determine whether cause exists for modifying,revoking and reissuing,or terminating this permit or to determine compliance with this permit.The Permittee shall also furnish to the Permit Issuing Authority upon request,copies of records required by this permit[40 CFR 122.41(h)]. 9. Duty to Reapply If the Permittee wishes to continue an activity regulated by this permit after the expiration date of this permit,the Permittee must apply for and obtain a new permit[40 CFR 122.41(b)]. 10. Expiration of Permit The Permittee is not authorized to discharge after the expiration date. In order to receive automatic authorization to discharge beyond the expiration date,the Permittee shall submit such information,forms,and fees as are required by the agency authorized to issue permits no later than 180 days prior to the expiration date unless permission for a later date has been granted by the Director. (The Director shall not grant permission for applications to be submitted later than the expiration date of the existing permit.) [40 CFR 122.21(d)]Any Permittee that has not requested renewal at least 180 days prior to expiration,or any Permittee that does not have a permit after the expiration and has not requested renewal at least 180 days prior to expiration,will subject the Permittee to enforcement procedures as provided in NCGS 143-215.6 and 33 USC 1251 et. seq. 11. Signatory Requirements All applications,reports,or information submitted to the Permit Issuing Authority shall be signed and certified [40 CFR 122.41(k)]. a. All permit applications shall be signed as follows: (1) For a corporation: by a responsible corporate officer.For the purpose of this Section,a responsible corporate officer means: (a)a president,secretary,treasurer or vice president of the corporation in charge of a principal business function,or any other person who performs similar policy or decision making functions for the corporation,or(b)the manager of one or more manufacturing,production,or operating facilities,provided,the manager is authorized to make management decisions which govern the operation of the regulated facility including having the explicit or implicit duty of making major capital investment recommendations,and initiating and directing other comprehensive measures to assure long term environmental compliance with environmental laws and regulations;the manager can ensure that the necessary systems are established or actions taken to gather complete and accurate information for permit application requirements;and where authority to sign documents has been assigned or delegated to the manager in accordance with corporate procedures . (2) For a partnership or sole proprietorship: by a general partner or the proprietor,respectively;or (3) For a municipality, State,Federal,or other public agency: by either a principal executive officer or ranking elected official [40 CFR 122.22]. b. All reports required by the permit and other information requested by the Permit Issuing Authority shall be signed by a person described in paragraph a. above or by a duly authorized representative of that person.A person is a duly authorized representative only if: (1) The authorization is made in writing by a person described above; (2) The authorization specified either an individual or a position having responsibility for the overall operation of the regulated facility or activity,such as the position of plant manager,operator of a well or well field, superintendent,a position of equivalent responsibility,or an individual or position having overall responsibility for environmental matters for the company.(A duly authorized representative may thus be either a named individual or any individual occupying a named position.);and (3) The written authorization is submitted to the Permit Issuing Authority[40 CFR 122.22] Version 11/09/2011.2 NPDES Permit Standard Conditions Page 6 of 18 c. Changes to authorization: If an authorization under paragraph(b)of this section is no longer accurate because a different individual or position has responsibility for the overall operation of the facility,a new authorization satisfying the requirements of paragraph(b)of this section must be submitted to the Director prior to or together with any reports,information,or applications to be signed by an authorized representative [40 CFR 122.22] d. Certification.Any person signing a document under paragraphs a.or b.of this section shall make the following certification [40 CFR 122.22].NO OTHER STATEMENTS OF CERTIFICATION WILL BE ACCEPTED: "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 submitted 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 fines and imprisonment for knowing violations." 12. Permit Actions This permit may be modified,revoked and reissued,or terminated for cause.The filing of a request by the Permittee for a permit modification,revocation and reissuance,or termination,or a notification of planned changes or anticipated noncompliance does not stay any permit condition[40 CFR 122.41(f)]. 13. Permit Modification,Revocation and Reissuance,or Termination The issuance of this permit does not prohibit the permit issuing authority from reopening and modifying the permit, revoking and reissuing the permit,or terminating the permit as allowed by the laws,rules,and regulations contained in Title 40,Code of Federal Regulations, Parts 122 and 123;Title 15A of the North Carolina Administrative Code,Subchapter 02H .0100;and North Carolina General Statute 143.215.1 et. al. 14. Annual Administering and Compliance Monitoring Fee Requirements The Permittee must pay the annual administering and compliance monitoring fee within thirty days after being billed by the Division.Failure to pay the fee in a timely manner in accordance with 15A NCAC 02H .0105(b)(2) may cause this Division to initiate action to revoke the permit. Section C. Operation and Maintenance of Pollution Controls 1. Certified Operator Owners of classified water pollution control systems must designate operators,certified by the Water Pollution Control System Operators Certification Commission(WPCSOCC),of the appropriate type and grade for the system,and,for each classification must[T15A NCAC 08G .0201]: a. designate one Operator In Responsible Charge(ORC)who possesses a valid certificate of the type and grade at least equivalent to the type and grade of the system; b. designate one or more Back-up Operator(s)in Responsible Charge(Back-up ORCs)who possesses a valid certificate of the type of the system and no more than one grade less than the grade of the system,with the exception of no backup operator in responsible charge is required for systems whose minimum visitation requirements are twice per year;and c. submit a signed completed"Water Pollution Control System Operator Designation Form"to the Commission (or to the local health department for owners of subsurface systems)countersigned by the designated certified operators,designating the Operator in Responsible Charge(ORC)and the Back-up Operator in Responsible Charge(Back-up ORC): (1) 60 calendar days prior to wastewater or residuals being introduced into a new system;or (2) within 120 calendar days following: > receiving notification of a change in the classification of the system requiring the designation of a new Operator in Responsible Charge(ORC)and Back-up Operator in Responsible Charge(Back-up ORC) of the proper type and grade;or ➢ a vacancy in the position of Operator in Responsible Charge(ORC)or Back-up Operator in Responsible Charge(Back-up ORC). Version 11/09/2011.2 NPDES Permit Standard Conditions Page 7 of 18 (3) within seven calendar days of vacancies in both ORC and Back-up ORC positions replacing or designating at least one of the responsibilities. The ORC of each Class I facility(or the Back-up ORC,when acting as surrogate for the ORC)must: > Visit the facility as often as is necessary to insure proper operation of the treatment system;the treatment facility must be visited at least weekly > Comply with all other conditions of 15A NCAC 08G .0204. The ORC of each Class II, III and IV facility(or the Back-up ORC,when acting as surrogate for the ORC)must: > Visit the facility as often as is necessary to insure proper operation of the treatment system;the treatment facility must be visited at least five days per week,excluding holidays > Properly manage and document daily operation and maintenance of the facility > Comply with all other conditions of 15A NCAC 08G .0204. 2. Proper Operation and Maintenance The Permittee shall at all times properly operate and maintain all facilities and systems of treatment and control (and related appurtenances)which are installed or used by the Permittee to achieve compliance with the conditions of this permit. Proper operation and maintenance also includes adequate laboratory controls and appropriate quality assurance procedures.This provision requires the Permittee to install and operate backup or auxiliary facilities only when necessary to achieve compliance with the conditions of the permit[40 CFR 122.41(e)]. NOTE: Properly and officially designated operators are fully responsible for all proper operation and maintenance of the facility,and all documentation required thereof,whether acting as a contract operator[subcontractor] or a member of the Permittee's staff. 3. Need to Halt or Reduce not a Defense It shall not be a defense for a Permittee in an enforcement action that it would have been necessary to halt or reduce the permitted activity in order to maintain compliance with the condition of this permit[40 CFR 122.41(c)]. 4. Bypassing of Treatment Facilities a. Bypass not exceeding limitations[40 CFR 122.41(m)(2)] The Permittee may allow any bypass to occur which does not cause effluent limitations to be exceeded,but only if it also is for essential maintenance to assure efficient operation.These bypasses are not subject to the provisions of Paragraphs b.and c.of this section. b. Notice [40 CFR 122.41(m)(3)] (1) Anticipated bypass. If the Permittee knows in advance of the need for a bypass,it shall submit prior notice, if possible at least ten days before the date of the bypass; including an evaluation of the anticipated quality and effect of the bypass. (2) Unanticipated bypass.The Permittee shall submit notice of an unanticipated bypass as required in Part II.E.6.(24-hour notice). c. Prohibition of Bypass (1) Bypass from the treatment facility is prohibited and the Permit Issuing Authority may take enforcement action against a Permittee for bypass,unless: (A) Bypass was unavoidable to prevent loss of life,personal injury or severe property damage; (B) There were no feasible alternatives to the bypass,such as the use of auxiliary treatment facilities, retention of untreated wastes or maintenance during normal periods of equipment downtime.This condition is not satisfied if adequate backup equipment should have been installed in the exercise of reasonable engineering judgment to prevent a bypass which occurred during normal periods of equipment downtime or preventive maintenance;and (C) The Permittee submitted notices as required under Paragraph b.of this section. (2) Bypass from the collection system is prohibited and the Permit Issuing Authority may take enforcement action against a Permittee for a bypass as provided in any current or future system-wide collection system permit associated with the treatment facility. Version 11/09/2011.2 NPDES Permit Standard Conditions Page 8 of 18 (3) The Permit Issuing Authority may approve an anticipated bypass,after considering its adverse effects,if the Permit Issuing Authority determines that it will meet the three conditions listed above in Paragraph c. (1)of this section. 5. Upsets a. Effect of an upset[40 CFR 122.41(n)(2)]: An upset constitutes an affirmative defense to an action brought for noncompliance with such technology based permit effluent limitations if the requirements of paragraph b.of this condition are met.No determination made during administrative review of claims that noncompliance was caused by upset,and before an action for noncompliance,is final administrative action subject to judicial review. b. Conditions necessary for a demonstration of upset:Any Permittee who wishes to establish the affirmative defense of upset shall demonstrate,through properly signed,contemporaneous operating logs,or other relevant evidence that: (1)An upset occurred and that the Permittee can identify the cause(s)of the upset; (2)The Permittee facility was at the time being properly operated;and (3)The Permittee submitted notice of the upset as required in Part II.E.6.(b)of this permit. (4)The Permittee complied with any remedial measures required under Part II.B.2.of this permit. c. Burden of proof[40 CFR 122.41(n)(4)]: The Permittee seeking to establish the occurrence of an upset has the burden of proof in any enforcement proceeding. 6. Removed Substances Solids,sludges, filter backwash,or other pollutants removed in the course of treatment or control of wastewaters shall be utilized/disposed of in accordance with NCGS 143-215.1 and in a manner such as to prevent any pollutant from such materials from entering waters of the State or navigable waters of the United States except as permitted by the Commission.The Permittee shall comply with all applicable state and Federal regulations governing the disposal of sewage sludge, including 40 CFR 503, Standards for the Use and Disposal of Sewage Sludge;40 CFR Part 258,Criteria For Municipal Solid Waste Landfills;and 15A NCAC Subchapter 2T, Waste Not Discharged To Surface Waters.The Permittee shall notify the Permit Issuing Authority of any significant change in its sludge use or disposal practices. 7. Power Failures The Permittee is responsible for maintaining adequate safeguards(as required by 15A NCAC 02H .0124)to prevent the discharge of untreated or inadequately treated wastes during electrical power failures either by means of alternate power sources,standby generators or retention of inadequately treated effluent. Section D. Monitoring and Records I. Representative Sampling Samples collected and measurements taken,as required herein, shall be representative of the permitted discharge. Samples collected at a frequency less than daily shall be taken on a day and time that is representative of the discharge for the period the sample represents.All samples shall be taken at the monitoring points specified in this permit and,unless otherwise specified,before the effluent joins or is diluted by any other wastestream,body of water,or substance. Monitoring points shall not be changed without notification to and the approval of the Permit Issuing Authority [40 CFR 122.41(j)]. 2. Reporting Monitoring results obtained during the previous month(s)shall be summarized for each month and reported on a monthly Discharge Monitoring Report(DMR)Form(MR 1, 1.1,2,3)or alternative forms approved by the Director,postmarked no later than the last calendar day of the month following the completed reporting period. The first DMR is due on the last day of the month following the issuance of the permit or in the case of a new facility,on the last day of the month following the commencement of discharge. Duplicate signed copies of these, and all other reports required herein,shall be submitted to the following address: Version 11/09/2011.2 NPDES Permit Standard Conditions Page 9 of 18 NC DEQ/Division of Water Resources/Water Quality Permitting Section ATTENTION: Central Files 1617 Mail Service Center Raleigh,North Carolina 27699-1617 3. Flow Measurements Appropriate flow measurement devices and methods consistent with accepted scientific practices shall be selected and used to ensure the accuracy and reliability of measurements of the volume of monitored discharges. The devices shall be installed,calibrated and maintained to ensure that the accuracy of the measurements is consistent with the accepted capability of that type of device.Devices selected shall be capable of measuring flows with a maximum deviation of less than 10%from the true discharge rates throughout the range of expected discharge volumes. Flow measurement devices shall be accurately calibrated at a minimum of once per year and maintained to ensure that the accuracy of the measurements is consistent with the accepted capability of that type of device. The Director shall approve the flow measurement device and monitoring location prior to installation. Once-through condenser cooling water flow monitored by pump logs,or pump hour meters as specified in Part I of this permit and based on the manufacturer's pump curves shall not be subject to this requirement. 4. Test Procedures Laboratories used for sample analysis must be certified by the Division.Permittees should contact the Division's Laboratory Certification Section(919 733-3908)or visit https://deq.nc.gov/about/divisions/water-resources/water- resources-data/water-sciences-home-page/laboratory-certification-branch for information regarding laboratory certifications. Facilities whose personnel are conducting testing of field-certified parameters only must hold the appropriate field parameter laboratory certifications. Test procedures for the analysis of pollutants shall conform to the EMC regulations(published pursuant to NCGS 143-215.63 et. seq.),the Water and Air Quality Reporting Acts,and to regulations published pursuant to Section 304(g),33 USC 1314,of the CWA(as amended),and 40 CFR 136;or in the case of sludge use or disposal, approved under 40 CFR 136,unless otherwise specified in 40 CFR 503,unless other test procedures have been specified in this permit[40 CFR 122.41]. To meet the intent of the monitoring required by this permit,all test procedures must produce minimum detection and reporting levels that are below the permit discharge requirements and all data generated must be reported down to the minimum detection or lower reporting level of the procedure. If no approved methods are determined capable of achieving minimum detection and reporting levels below permit discharge requirements,then the most sensitive(method with the lowest possible detection and reporting level)approved method must be used. 5. Penalties for Tampering The CWA provides that any person who falsifies,tampers with,or knowingly renders inaccurate,any monitoring device or method required to be maintained under this permit shall,upon conviction,be punished by a fine of not more than$10,000 per violation,or by imprisonment for not more than two years per violation,or by both. If a conviction of a person is for a violation committed after a first conviction of such person under this paragraph, punishment is a fine of not more than$20,000 per day of violation,or by imprisonment of not more than 4 years, or both[40 CFR 122.41]. 6. Records Retention Except for records of monitoring information required by this permit related to the Permittee's sewage sludge use and disposal activities,which shall be retained for a period of at least five years(or longer as required by 40 CFR 503),the Permittee shall retain records of all monitoring information, including: ➢ all calibration and maintenance records ➢ all original strip chart recordings for continuous monitoring instrumentation ➢ copies of all reports required by this permit ➢ copies of all data used to complete the application for this permit Version 11/09/2011.2 NPDES Permit Standard Conditions Page 10 of 18 These records or copies shall be maintained for a period of at least 3 years from the date of the sample, measurement,report or application. This period may be extended by request of the Director at any time [40 CFR 122.41]. 7. Recording Results For each measurement or sample taken pursuant to the requirements of this permit,the Permittee shall record the following information [40 CFR 122.41]: a. The date,exact place,and time of sampling or measurements; b. The individual(s)who performed the sampling or measurements; c. The date(s)analyses were performed; d. The individual(s)who performed the analyses; e. The analytical techniques or methods used;and f. The results of such analyses. 8. Inspection and Entry The Permittee shall allow the Director,or an authorized representative(including an authorized contractor acting as a representative of the Director),upon the presentation of credentials and other documents as may be required by law,to; a. Enter,at reasonable times,upon the Permittee's premises where a regulated facility or activity is located or conducted,or where records must be kept under the conditions of this permit; b. Have access to and copy,at reasonable times,any records that must be kept under the conditions of this permit; c. Inspect at reasonable times any facilities,equipment(including monitoring and control equipment),practices, or operations regulated or required under this permit;and d. Sample or monitor at reasonable times,for the purposes of assuring permit compliance or as otherwise authorized by the CWA,any substances or parameters at any location [40 CFR 122.41(i)]. Section E Reporting Requirements 1. Change in Discharge All discharges authorized herein shall be consistent with the terms and conditions of this permit. The discharge of any pollutant identified in this permit more frequently than or at a level in excess of that authorized shall constitute a violation of the permit. 2. Planned Changes The Permittee shall give notice to the Director as soon as possible of any planned physical alterations or additions to the permitted facility [40 CFR 122.41(1)].Notice is required only when: a. The alteration or addition to a permitted facility may meet one of the criteria for new sources at 40 CFR 122.29(b);or b. The alteration or addition could significantly change the nature or increase the quantity of pollutants discharged. This notification applies to pollutants subject neither to effluent limitations in the permit,nor to notification requirements under 40 CFR 122.42(a)(1);or c. The alteration or addition results in a significant change in the Permittee's sludge use or disposal practices,and such alteration,addition or change may justify the application of permit conditions that are different from or absent in the existing permit,including notification of additional use or disposal sites not reported during the permit application process or not reported pursuant to an approved land application plan. 3. Anticipated Noncompliance The Permittee shall give advance notice to the Director of any planned changes to the permitted facility or other activities that might result in noncompliance with the permit[40 CFR 122.41(1)(2)]. 4. Transfers This permit is not transferable to any person without prior written notice to and approval from the Director in accordance with 40 CFR 122.61.The Director may condition approval in accordance with NCGS 143-215.1, in Version 11/09/2011.2 NPDES Permit Standard Conditions Page 11 of 18 particular NCGS 143-215.1(b)(4)b.2.,and may require modification or revocation and reissuance of the permit,or a minor modification,to identify the new permittee and incorporate such other requirements as may be necessary under the CWA [40 CFR 122.41(1)(3), 122.61] or state statute. 5. Monitoring Reports Monitoring results shall be reported at the intervals specified elsewhere in this permit[40 CFR 122.41(1)(4)]. a. Monitoring results must be reported on a Discharge Monitoring Report(DMR)(See Part II.D.2)or forms provided by the Director for reporting results of monitoring of sludge use or disposal practices. b. If the Permittee monitors any pollutant more frequently than required by this permit using test procedures approved under 40 CFR Part 136 and at a sampling location specified in this permit or other appropriate instrument governing the discharge,the results of such monitoring shall be included in the calculation and reporting of the data submitted on the DMR. 6. Twenty-four Hour Reporting a. The Permittee shall report to the Director or the appropriate Regional Office any noncompliance that potentially threatens public health or the environment.Any information shall be provided orally within 24 hours from the time the Permittee became aware of the circumstances.A written submission shall also be provided within 5 days of the time the Permittee becomes aware of the circumstances.The written submission shall contain a description of the noncompliance,and its cause;the period of noncompliance,including exact dates and times,and if the noncompliance has not been corrected,the anticipated time it is expected to continue;and steps taken or planned to reduce,eliminate,and prevent reoccurrence of the noncompliance[40 CFR 122.41(1)(6)]. b. The Director may waive the written report on a case-by-case basis for reports under this section if the oral report has been received within 24 hours. c. Occurrences outside normal business hours may also be reported to the Division's Emergency Response personnel at(800)858-0368 or(919)733-3300. 7. Other Noncompliance The Permittee shall report all instances of noncompliance not reported under Part II.E.5 and 6.of this permit at the time monitoring reports are submitted.The reports shall contain the information listed in Part II.E.6.of this permit [40 CFR 122.41(1)(7)]. 8. Other Information Where the Permittee becomes aware that it failed to submit any relevant facts in a permit application,or submitted incorrect information in a permit application or in any report to the Director,it shall promptly submit such facts or information[40 CFR 122.41(1)(8)]. 9. Noncompliance Notification The Permittee shall report by telephone to either the central office or the appropriate regional office of the Division as soon as possible,but in no case more than 24 hours or on the next working day following the occurrence or first knowledge of the occurrence of any of the following: a. Any occurrence at the water pollution control facility which results in the discharge of significant amounts of wastes which are abnormal in quantity or characteristic,such as the dumping of the contents of a sludge digester;the known passage of a slug of hazardous substance through the facility;or any other unusual circumstances. b. Any process unit failure,due to known or unknown reasons,that render the facility incapable of adequate wastewater treatment such as mechanical or electrical failures of pumps,aerators,compressors,etc. c. Any failure of a pumping station,sewer line,or treatment facility resulting in a by-pass without treatment of all or any portion of the influent to such station or facility. Persons reporting such occurrences by telephone shall also file a written report within 5 days following first knowledge of the occurrence.Also see reporting requirements for municipalities in Part IV.C.2.c.of this permit. 10. Availability of Reports Except for data determined to be confidential under NCGS 143-215.3 (a)(2)or Section 308 of the Federal Act,33 USC 1318,all reports prepared in accordance with the terms shall be available for public inspection at the offices Version 11/09/2011.2 NPDES Permit Standard Conditions Page 12 of 18 of the Division.As required by the Act,effluent data shall not be considered confidential. Knowingly making any false statement on any such report may result in the imposition of criminal penalties as provided for in NCGS 143- 215.1(b)(2)or in Section 309 of the Federal Act. 11. Penalties for Falsification of Reports The CWA provides that any person who knowingly makes any false statement,representation,or certification in any record or other document submitted or required to be maintained under this permit,including monitoring reports or reports of compliance or noncompliance shall,upon conviction,be punished by a fine of not more than $25,000 per violation,or by imprisonment for not more than two years per violation,or by both[40 CFR 122.41]. 12. Annual Performance Reports Permittees who own or operate facilities that primarily collect or treat municipal or domestic wastewater and have an average annual flow greater than 200,000 gallons per day shall provide an annual report to the Permit Issuing Authority and to the users/customers served by the Permittee(NCGS 143-215.1 C).The report shall summarize the performance of the collection or treatment system,as well as the extent to which the facility was compliant with applicable Federal or State laws,regulations and rules pertaining to water quality.The report shall be provided no later than sixty days after the end of the calendar or fiscal year,depending upon which annual period is used for evaluation. The report shall be sent to: NC DEQ/Division of Water Resources/Water Quality Permitting Section ATTENTION: Central Files 1617 Mail Service Center Raleigh,North Carolina 27699-1617 Version 11/09/2011.2 NPDES Permit Standard Conditions Page 13 of 18 • PART III OTHER REQUIREMENTS Section A. Construction a. The Permittee shall not commence construction of wastewater treatment facilities,nor add to the plant's treatment capacity,nor change the treatment process(es)utilized at the treatment plant unless(1)the Division has issued an Authorization to Construct(AtC)permit or(2)the Permittee is exempted from such AtC permit requirements under Item b.of this Section. b. In accordance with NCGS 143-215.1(a5) [SL 2011-394],no permit shall be required to enter into a contract for the construction,installation,or alteration of any treatment work or disposal system or to construct,install,or alter any treatment works or disposal system within the State when the system's or work's principle function is to conduct, treat,equalize,neutralize,stabilize,recycle,or dispose of industrial waste or sewage from an industrial facility and the discharge of the industrial waste or sewage is authorized under a permit issued for the discharge of the industrial waste or sewage into the waters of the State. Notwithstanding the above,the permit issued for the discharge may be modified if required by federal regulation. c. Issuance of an AtC will not occur until Final Plans and Specifications for the proposed construction have been submitted by the Permittee and approved by the Division. Section B. Groundwater Monitoring The Permittee shall,upon written notice from the Director,conduct groundwater monitoring as maybe required to determine the compliance of this NPDES permitted facility with the current groundwater standards. Section C. Changes in Discharges of Toxic Substances The Permittee shall notify the Permit Issuing Authority as soon as it knows or has reason to believe(40 CFR 122.42): a. That any activity has occurred or will occur which would result in the discharge,on a routine or frequent basis,of any toxic pollutant which is not limited in the permit,if that discharge will exceed the highest of the following "notification levels"; (1) One hundred micrograms per liter(100 µg/L); (2) Two hundred micrograms per liter(200 µg/L)for acrolein and acrylonitrile; five hundred micrograms per liter (500 µg/L)for 2,4-dinitrophenol and for 2-methyl-4,6-dinitrophenol;and one milligram per liter(1 mg/L)for antimony; (3) Five times the maximum concentration value reported for that pollutant in the permit application. b. That any activity has occurred or will occur which would result in any discharge,on a non-routine or infrequent basis,of a toxic pollutant which is not limited in the permit,if that discharge will exceed the highest of the following"notification levels"; (1) Five hundred micrograms per liter(500 µg/L); (2) One milligram per liter(1 mg/L)for antimony; (3) Ten times the maximum concentration value reported for that pollutant in the permit application. Section D. Facility Closure Requirements The Permittee must notify the Division at least 90 days prior to the closure of any wastewater treatment system covered by this permit.The Division may require specific measures during deactivation of the system to prevent adverse impacts to waters of the State.This permit cannot be rescinded while any activities requiring this permit continue at the permitted facility. Version 11/09/2011.2 NPDES Permit Standard Conditions . Page 14 of 18 PART IV SPECIAL CONDITIONS FOR MUNICIPAL FACILITIES Section A. Definitions In addition to the definitions in Part II of this permit,the following definitions apply to municipal facilities: Indirect Discharge or Industrial User Any non-domestic source that discharges wastewater containing pollutants into a POTW regulated under section 307(b),(c)or(d)of the CWA. [40 CFR 403.3 (i)and(j)and 15A NCAC 02H.0903(b)(11)] Interference Inhibition or disruption of the POTW treatment processes;operations;or its sludge process,use,or disposal which causes or contributes to a violation of any requirement of the Permittee's(or any satellite POTW's if different from the Permittee)NPDES,collection system,or non-discharge permit or prevents sewage sludge use or disposal in compliance with specified applicable State and Federal statutes,regulations,or permits. [15A NCAC 02H .0903(b)(14)] Pass Through A discharge which exits the POTW into waters of the State in quantities or concentrations which,alone or with discharges from other sources,causes a violation, including an increase in the magnitude or duration of a violation,of the Permittee's(or any satellite POTW's,if different from the Permittee)NPDES,collection system,or non-discharge permit. [15A NCAC 02H .0903(b)(23)] Publicly Owned Treatment Works(POTW) A treatment works as defined by Section 212 of the CWA,which is owned by a State or local government organization. This definition includes any devices and systems used in the storage,treatment,recycling and reclamation of municipal sewage or industrial wastes of a liquid nature. It also includes the collection system,as defined in 15A NCAC 2T .0402,only if it conveys wastewater to a POTW treatment plant.The term also means the local government organization,or municipality,as defined in section 502(4)of the CWA,which has jurisdiction over indirect discharges to and the discharges from such a treatment works.In this context,the organization may be the owner of the POTW treatment plant or the owner of the collection system into which an indirect discharger discharges.This second type of POTW may be referred to as a"satellite POTW organization." [15A NCAC 02H .0903(b)(26)] "Significant Industrial User"or"SIU" An Industrial User that discharges wastewater into a publicly owned treatment works and that[15A NCAC 02H .0903(b)(33)]: 1. Discharges an average of 25,000 gallons per day or more of process wastewater to the POTW(excluding sanitary, noncontact cooling and boiler blowdown wastewaters);or 2. Contributes process wastewater which makes up five percent or more of the NPDES or non-discharge permitted flow limit or organic capacity of the POTW treatment plant.In this context,organic capacity refers to BOD,TSS and ammonia;or 3. Is subject to categorical standards under 40 CFR Part 403.6 and 40 CFR Parts 405-471; or 4. Is designated as such by the Permittee on the basis that the Industrial User has a reasonable potential for adversely affecting the POTW's operation or for violating any pretreatment standard or requirement,or the POTW's effluent limitations and conditions in its NPDES or non-discharge permit,or to limit the POTW's sludge disposal options; 5. Subject to approval under 15A NCAC 02H.0907(b),the Permittee may determine that an Industrial User meeting the criteria in paragraphs 1 or 2 of this definition above has no reasonable potential for adversely affecting the POTW's operation or for violating any pretreatment standard or requirement,the POTW's effluent limitations and conditions in its NPDES or non-discharge permit,or to limit the POTW's sludge disposal options,and thus is not a Significant Industrial User(SIU);or 6. Subject to approval under 15A NCAC 02H .0907(b),the Permittee may determine that an Industrial User meeting the criteria in paragraph 3 of this definition above meets the requirements of 40 CFR Part 403.3(v)(2)and thus is a non-significant categorical Industrial User. Section B. Publicly Owned Treatment Works(POTWs) Version 11/09/2011.2 NPDES Permit Standard Conditions Page 15 of 18 All POTWs must provide adequate notice to the Director of the following[40 CFR 122.42(b)]: I. Any new introduction of pollutants into the POTW from an indirect discharger,regardless of the means of transport,which would be subject to section 301 or 306 of CWA if it were directly discharging those pollutants; and 2. Any substantial change in the volume or character of pollutants being introduced by an indirect discharger as influent to that POTW at the time of issuance of the permit. 3. For purposes of this paragraph,adequate notice shall include information on(1)the quality and quantity of effluent introduced into the POTW,and(2)any anticipated impact that may result from the change of the quantity or quality of effluent to be discharged from the POTW. Section C. Municipal Control of Pollutants from Industrial Users. 1. Effluent limitations are listed in Part I of this permit.Other pollutants attributable to inputs from Industrial Users discharging to the POTW may be present in the Permittee's discharge.At such time as sufficient information becomes available to establish limitations for such pollutants,this permit may be revised to specify effluent limitations for any or all of such other pollutants in accordance with best practicable technology or water quality standards. 2. Prohibited Discharges a. The Permittee shall develop and enforce their Pretreatment Program to implement the prohibition against the introduction of pollutants or discharges into the waste treatment system or waste collection system which cause or contribute to Pass Through or Interference as defined in 15A NCAC 02H .0900 and 40 CFR 403. [40 CFR 403.5(a)(1)] b. The Permittee shall develop and enforce their Pretreatment Program to implement the prohibitions against the introduction of the following wastes in the waste treatment or waste collection system [40 CFR 403.5(b)]: (1) Pollutants which create a fire or explosion hazard in the POTW,including,but not limited to, wastestreams with a closed cup flashpoint of less than 140 degrees Fahrenheit or 60 degrees Centigrade using the test methods specified in 40 CFR 261.21; (2) Pollutants which cause corrosive structural damage to the POTW,but in no case discharges with pH lower than 5.0,unless the works is specifically designed to accommodate such discharges; (3) Solid or viscous pollutants in amounts which cause obstruction to the flow in the POTW resulting in Interference; (4) Any pollutant,including oxygen demanding pollutants(BOD,etc.)released in a Discharge at a flow rate and/or pollutant concentration which will cause Interference with the POTW; (5) Heat in amounts which will inhibit biological activity in the POTW resulting in Interference,but in no case heat in such quantities that the temperature at the POTW Treatment Plant exceeds 40°C(104°F) unless the Division,upon request of the POTW,approves alternate temperature limits; (6) Petroleum oil,non-biodegradable cutting oil,or products of mineral oil origin in amounts that will cause Interference or Pass Through; (7) Pollutants which result in the presence of toxic gases,vapors,or fumes within the POTW in a quantity that may cause acute worker health and safety problems;or (8) Any trucked or hauled pollutants,except at discharge points designated by the POTW. c. The Permittee shall investigate the source of all discharges into the POTW, including slug loads and other unusual discharges,which have the potential to adversely impact the Permittee's Pretreatment Program and/or the operation of the POTW. The Permittee shall report such discharges into the POTW to the Director or the appropriate Regional Office. Any information shall be provided orally within 24 hours from the time the Permittee became aware of the circumstances.A written submission shall also be provided within 5 days of the time the Permittee becomes aware of the circumstances.The written submission shall contain a description of the discharge;the investigation into possible sources;the period of the discharge,including exact dates and times; if the discharge has not ceased,the anticipated time it is expected to continue;and steps taken or planned to reduce, eliminate,and prevent reoccurrence of the noncompliance, Version 11/09/2011.2 NPDES Permit Standard Conditions Page 16 of 18 3. With regard to the effluent requirements listed in Part I of this permit,it may be necessary for the Permittee to supplement the requirements of the Federal Pretreatment Standards(40 CFR, Part 403)to ensure compliance by the Permittee with all applicable effluent limitations. Such actions by the Permittee may be necessary regarding some or all of the industries discharging to the municipal system. 4. The Permittee shall require any Industrial User(IU)discharging to the POTW to meet Federal Pretreatment Standards developed under Section 307(b)of the Act as amended(which includes categorical standards and specific local limits,best management practices and narrative requirements).Prior to accepting wastewater from any Significant Industrial User(SIU),the Permittee shall either develop and submit to the Division a new Pretreatment Program or,as necessary,a modification of an existing Pretreatment Program,for approval as required under section D below as well as 15A NCAC 02H .0907(a)and(b). [40 CFR 122.44(j)(2)] 5. This permit shall be modified,or alternatively,revoked and reissued,to incorporate or modify an approved POTW Pretreatment Program or to include a compliance schedule for the development of a POTW Pretreatment Program as required under Section 402(b)(8)of the CWA and implementing regulations or by the requirements of the approved State pretreatment program,as appropriate. Section D. Pretreatment Programs Under authority of sections 307(b)and(c)and 402(b)(8)of the CWA and implementing regulations 40 CFR 403, North Carolina General Statute 143-215.3(14)and implementing regulations 15A NCAC 02H .0900,and in accordance with the approved pretreatment program,all provisions and regulations contained and referenced in the pretreatment program submittal are an enforceable part of this permit. [40 CFR I22.44(j)(2)] The Permittee shall operate its approved pretreatment program in accordance with Section 402(b)(8)of the CWA,40 CFR 403, 15A NCAC 02H .0900,and the legal authorities,policies,procedures,and financial provisions contained in its pretreatment program submission and Division approved modifications thereof. Such operation shall include but is not limited to the implementation of the following conditions and requirements.Terms not defined in Part II or Part IV of this permit are as defined in 15A NCAC 02H .0903 and 40 CFR 403.3. 1. Sewer Use Ordinance(SUO) The Permittee shall maintain adequate legal authority to implement its approved pretreatment program. [15A NCAC 02H .0903(b)(32), .0905 and.0906(b)(1);40 CFR 403.8(f)(1)and 403.9(b)(1)and(2)] 2. Industrial Waste Survey(IWS) The Permittee shall implement an I WS consisting of the survey of users of the POTW collection system or treatment plant,as required by 40 CFR 403.8(f)(2)(i-iii)and 15A NCAC 02H .0905 [also 40 CFR 122.44(j)(1)], including identification of all Industrial Users that may have an impact on the POTW and the character and amount of pollutants contributed to the POTW by these Industrial Users and identification of those Industrial Users meeting the definition of SIU. Where the Permittee accepts wastewater from one or more satellite POTWs,the IWS for the Permittee shall address all satellite POTW services areas,unless the pretreatment program in those satellite service areas is administered by a separate Permittee with an approved Pretreatment Program.The Permittee shall submit a summary of its IWS activities to the Division at least once every five years,and as required by the Division. The IWS submission shall include a summary of any investigations conducted under paragraph C.2.c.of this Part. [15A NCAC 02H .0903(b)(13), .0905 and.0906(b)(2);40 CFR 403.8(0(2)and 403.9] 3. Monitoring Plan The Permittee shall implement a Division-approved Monitoring Plan for the collection of facility specific data to be used in a wastewater treatment plant Headworks Analysis(HWA)for the development of specific pretreatment local limits. Effluent data from the Plan shall be reported on the DMRs(as required by Parts II.D and II.E.5.). [15A NCAC 02H .0903(b)(16), .0906(b)(3)and.0905] 4. Headworks Analysis(HWA)and Local Limits The Permittee shall obtain Division approval of a HWA at least once every five years,and as required by the Division. Within 180 days of the effective date of this permit(or any subsequent permit modification)the Permittee shall submit to the Division a written technical evaluation of the need to revise local limits(i.e.,an updated HWA or documentation of why one is not needed) [40 CFR 122.44].The Permittee shall develop, in accordance with 40 CFR 403.5(c)and 15A NCAC 02H .0909,specific Local Limits to implement the prohibitions listed in 40 CFR 403.5(a)and(b)and 15A NCAC 02H .0909. Pursuant to 40 CFR 403.5, local limits are Version 11/09/2011.2 NPDES Permit Standard Conditions Page 17 of 18 • enforceable Pretreatment Standards as defined by 40 CFR 403.3(1). [15A NCAC 02H.0903(b)(10), .0905,and .0906(b)(4)] 5. Industrial User Pretreatment Permits(IUP)&Allocation Tables In accordance with NCGS 143-215.1,the Permittee shall issue to all Significant Industrial Users,permits for operation of pretreatment equipment and discharge to the Permittee's collection system or treatment works.These permits shall contain limitations, sampling protocols,reporting requirements,appropriate standard and special conditions,and compliance schedules as necessary for the installation of treatment and control technologies to assure that their wastewater discharge will meet all applicable pretreatment standards and requirements.The Permittee shall maintain a current Allocation Table(AT)which summarizes the results of the HWA and the limits from all IUPs. Permitted IUP loadings for each parameter cannot exceed the treatment capacity of the POTW as determined by the HWA. [15A NCAC 02H.0906(b)(6), .0909, .0916,and.0917;40 CFR 403.5,403.8(f)(1)(iii); NCGS 143-215.67(a)] 6. Authorization to Construct(AtC) The Permittee shall ensure that an Authorization to Construct permit(AtC)is issued to all applicable Industrial Users for the construction or modification of any pretreatment facility. Prior to the issuance of an AtC,the proposed pretreatment facility and treatment process must be evaluated for its capacity to comply with all Industrial User Pretreatment Permit(IUP)limitations. [15A NCAC 02H .0906(b)(7)and.0905;NCGS 143- 215.1(a)(8)] 7. POTW Inspection&Monitoring of their IUs The Permittee shall conduct inspection,surveillance,and monitoring activities as described in its Division approved pretreatment program in order to determine,independent of information supplied by Industrial Users, compliance with applicable pretreatment standards. [15A NCAC 02H.0908(e);40 CFR 403.8(f)(2)(v)] The Permittee must: a. Inspect all Significant Industrial Users(SIUs)at least once per calendar year; b. Sample all Significant Industrial Users(SIUs)at least once per calendar year for all SIU permit-limited parameters including flow except as allowed under 15A NCAC .0908(e);and c. At least once per year,document an evaluation of any non-significant categorical Industrial User fi'_ compliance with the requirements in 40 CFR 403.3(v)(2),and either continue or revoke the desigion as non- significant. 8. IU Self Monitoring and Reporting The Permittee shall require all Industrial Users to comply with the applicable monitoring and reporting requirements outlined in the Division-approved pretreatment program,the industry's pretreatment permit,or in 15A NCAC 02H .0908. [15A NCAC 02H .0906(b)(5)and.0905;40 CFR 403.8(f)(1)(v)and(2)(iii);40 CFR 122.44(j)(2)and 40 CFR 403.12] 9. Enforcement Response Plan(ERP) The Permittee shall enforce and obtain appropriate remedies for violations of all pretreatment standards promulgated pursuant to section 307(b)and(c)of the CWA(40 CFR 405 et. seq.),prohibitive discharge standards as set forth in 40 CFR 403.5 and 15A NCAC 02H .0909, specific local limitations,and other pretreatment requirements.All remedies,enforcement actions and other,shall be consistent with the Enforcement Response Plan(ERP)approved by the Division. [15A NCAC 02H .0903(b)(7), .0906(b)(8)and.0905;40 CFR 403.8(0(5)] 10. Pretreatment Annual Reports(PAR) The Permittee shall report to the Division in accordance with 15A NCAC 02H .0908.In lieu of submitting annual reports,Modified Pretreatment Programs developed under 15A NCAC 02H.0904(b)may be required to submit a partial annual report or to meet with Division personnel periodically to discuss enforcement of pretreatment requirements and other pretreatment implementation issues. For all other active pretreatment programs,the Permittee shall submit two copies of a Pretreatment Annual Report (PAR)describing its pretreatment activities over the previous calendar year to the Division at the following address: Version 11/09/2011.2 NPDES Permit Standard Conditions Page 18 of 18 •NC DEQ/Division of Water Resources/Water Quality Permitting Section Pretreatment,Emergency Response,and Collection Systems(PERCS)Unit 1617 Mail Service Center Raleigh,North Carolina 27699-1617 These reports shall be submitted by March 1 of each year and shall contain the following: a. Narrative A narrative summary detailing actions taken,or proposed,by the Permittee to correct significant non- compliance and to ensure compliance with pretreatment requirements; b. Pretreatment Program Summary(PPS) A pretreatment program summary(PPS)on forms or in a format provided by the Division; c. Significant Non-Compliance Report(SNCR) A list of Industrial Users(IUs)in significant noncompliance(SNC)with pretreatment requirements,and the nature of the violations on forms or in a format provided by the Division; d. Industrial Data Summary Forms(IDSF) Monitoring data from samples collected by both the POTW and the Significant Industrial Users(SIUs).These analytical results must be reported on Industrial Data Summary Forms(IDSF)or on other forms or in a format provided by the Division; e. Other Information Copies of the POTW's allocation table,new or modified enforcement compliance schedules,public notice of IUs in SNC,a summary of data or other information related to significant noncompliance determinations for IUs that are not considered SIUs,and any other information,upon request,which in the opinion of the Director is needed to determine compliance with the pretreatment implementation requirements of this permit; 11. Public Notice The Permittee shall publish annually a list of Industrial Users(IUs)that were in significant noncompliance(SNC) as defined in the Permittee's Division-approved Sewer Use Ordinance with applicable pretreatment requirements and standards during the previous twelve month period.This list shall be published within four months of the applicable twelve-month period. [15A NCAC 02H .0903(b)(34), .0908(b)(5)and.0905 and 40 CFR 403.8(f)(2)(viii)] 12. Record Keeping The Permittee shall retain for a minimum of three years records of monitoring activities and results,along with support information including general records,water quality records,and records of industrial impact on the POTW and shall retain all other Pretreatment Program records as required by 15A NCAC 02H.0908(f). [15A NCAC 02H .0908(f);40 CFR 403.12(o)] 13. Pretreatment Program Resources The Permittee shall maintain adequate funding and qualified personnel to accomplish the objectives of its approved pretreatment program. and retain a written description of those current levels of inspection. [15A NCAC 02H .0906(b)(9)and(10)and.0905;40 CFR 403.8(f)(3),403.9(b)(3)] 14. Modification to Pretreatment Programs Modifications to the approved pretreatment program including but not limited to local limits modifications,POTW monitoring of their Significant Industrial Users(SIUs),and Monitoring Plan modifications,shall be considered a permit modification and shall be governed by 40 CFR 403.18, 15 NCAC 02H.0114 and 15A NCAC 02H.0907. Version 11/09/2011.2