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Home My WebLink AboutNCG550981_Compliance Report_20230728 (2)DocuSign Envelope ID: 75BOEC30-7F1A-4COB-86EA-A181F54754E2 United States Environmental Protection Agency Form Approved. EPA Washington, D.C. 20460 OMB No. 2040-0057 Water Compliance Inspection Report Approval expires 8-31-98 Section A: National Data System Coding (i.e., PCS) Transaction Code NPDES yr/mo/day Inspection Type Inspector Fac Type 1 IN 2 u 3 I NCG550981 111 121 23/07/24 I17 18 I C I 19 I s I 20L] 21111I I I I I I I II I I I I I I I I I I I I I I I I I I I I I I I II I I I I I r6 Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA ---------------------- Reserved ------------------- 67 I 72 I ni I 73 � I 74 79 I I I I I I I80 70 I I 71 I LL -1 I I LJ Section B: Facility Data Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include Entry Time/Date Permit Effective Date POTW name and NPDES Dermit Number) 11:06AM 23/07/24 21/08/20 4344 Sterling Drive 4344 Sterling Dr Exit Time/Date Permit Expiration Date Durham NC 27712 11:37AM 23/07/24 25/10/31 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) Other Facility Data Name, Address of Responsible Official/Title/Phone and Fax Number Contacted Dawn Trembath,4344 Sterling Dr Durham NC 27712//919-383-0373/ No Section C: Areas Evaluated During Inspection (Check only those areas evaluated) Permit 0 Operations & Maintenar 0 Facility Site Review 0 Effluent/Receiving Wate Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) (See attachment summary) Name(s) and Signature(s) of Inspector(s) Agency/Office/Phone and Fax Numbers Date Michael Hall Docusigned by: DWR/RRO WQ/919-791-4237/ 4"'La R^L 7/27/2023 EP372DCBCB61EE4A8... Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date DocuSigned by: VcUn t,SSa f. 7/28/2023 '-B2916E6AB32144F... EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. Page# DocuSign Envelope ID: 75BOEC30-7F1A-4COB-86EA-A181F54754E2 NPDES yr/mo/day Inspection Type (Cont.) NCG550981 I11 12I 23/07/24 117 18 i c i Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) Findings during the inspection were as follows: 1. Pumping the septic tank: You are required to inspect the septic tank at least yearly to determine if solids must be removed or if other maintenance is necessary. Septic tanks should be pumped out every five years or when the solids level is found to be more than 1/3 of the liquid depth in the septic tank compartment, whichever is greater. A pumping company can check the status periodically and determine when pumping is required. Following the inspection, Ms. Trembath provided documentation showing that Clean Septic Tank Service pumped out the septic tank on March 12, 2020. The General NPDES Permit requires the permittee to retain records associated with sewage disposal activities for a period of at least 5 years. 2. Chlorine tablets in the chlorinator: You are reminded that it is required that chlorine tablets be maintained in the chlorinator to ensure proper disinfection of the discharged wastewater. Chlorine tablets provide effective disinfection and prevent/limit harmful bacteria from discharging to the environment. The product label for these tablets must indicate the tablets are approved for wastewater use and not for swimming pools. Part 1, Section D (1) of General NPDES Permit NCG550000 requires the permittee to inspect the tablet chlorinator weekly to ensure there is an adequate supply of tablets for continuous and proper operation. Section D (4) requires the permittee to maintain all system components, including disinfection units at all times and in good operating order. The inspector observed no tablets in the chlorinator. Please ensure the correct type of tablets are used and maintained in the chlorinator as required by the General NPDES Permit. We recommend the placement of 1-2 tablets in the chlorinator on an as -needed basis. The placement of more than 1-2 tablets can result in the tablets becoming lodged in the pipe, and therefore not contacting the water, as required. 3. Analyzing the effluent: Part 1. C., Effluent Limitations and Monitoring Requirements, within General Permit NCG550000 requires a permittee to sample and analyze the effluent leaving his/her treatment system prior to discharge annually. Parameters to be sampled and analyzed include Flow, BOD (Biochemical Oxygen Demand), Total Suspended Solids, Fecal Coliform, Total Residual Chlorine, Total Nitrogen, Ammonia Nitrogen and Total Phosphorous During the inspection, you informed the inspector that the effluent has not been monitored within the last 12 months. In the last inspection letter dated September 7, 2018, you were requested to sample your effluent and to submit the analytical results to this office. The Raleigh Regional Office has not received the requested results. If you have not monitored your effluent, then please collect a representative sample of the effluent, have it analyzed by a certified commercial laboratory and submit the results to this office no later than October 24, 2023. If, during this time, you are unable to collect a representative sample of the effluent discharge due to insufficient flow from the discharge pipe, then update this office with that information and continue to monitor the discharge and if conditions for sampling become favorable, then arrange to collect a sample. Failure to monitor the effluent discharge as required is a violation of NPDES General Permit NCG550000. 4. Discharge outlet location. The permittee is required to conduct a visual review of the outfall location at least twice each year (one at the time of sampling) to ensure that no visible solids or other obvious evidence of system malfunctioning is observed. Any visible signs of a malfunctioning system shall be documented and steps taken to correct the problem. The discharge pipe was visible and accessible the day of the inspection; although no discharge was noted. Please continue to ensure the outlet is visible/maintained and cleared of vegetation, soil and leaves. Part II Section B.14 of General Permit NCG550000 requires the permittee to "pay the annual administering and compliance monitoring fee within thirty days after being billed by the Division." Division records indicate the required annual fee ($60 per year) for the period ending August 31, 2023 and due September 3, 2022, has been paid. There are no overdue fees for the subject COC. Please continue to periodically inspect the wastewater treatment system to ensure the treatment components are always maintained and in good operating order. You are also reminded to maintain all monitoring data and associated maintenance records onsite for a minimum of three years and available for inspection. Page# DocuSign Envelope ID: 75BOEC30-7F1A-4COB-86EA-A181F54754E2 Permit: NCG550981 Owner -Facility: 4344 Sterling Drive Inspection Date: 07/24/2023 Inspection Type: Compliance Evaluation Within 30-days receipt of this letter, please submit a written response to this office indicating the actions you will take or have taken to comply with or resolve the issues noted item 3 above. Page# DocuSign Envelope ID: 75BOEC30-7F1A-4COB-86EA-A181F54754E2 Permit: NCG550981 Owner -Facility: 4344 Sterling Drive Inspection Date: 07/24/2023 Inspection Type: Compliance Evaluation Operations & Maintenance Yes No NA NE Is the plant generally clean with acceptable housekeeping? 0 ❑ ❑ ❑ Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable ❑ ❑ ❑ Solids, pH, DO, Sludge Judge, and other that are applicable? Comment: Permit Yes No NA NE (If the present permit expires in 6 months or less). Has the permittee submitted a new ❑ ❑ 0 ❑ application? Is the facility as described in the permit? M ❑ ❑ ❑ # Are there any special conditions for the permit? ❑ ■ ❑ ❑ Is access to the plant site restricted to the general public? ❑ ❑ 0 ❑ Is the inspector granted access to all areas for inspection? 0 ❑ ❑ ❑ Comment: Septic Tank Yes No NA NE (If pumps are used) Is an audible and visual alarm operational? ❑ ❑ 0 ❑ Is septic tank pumped on a schedule? 0 ❑ ❑ ❑ Are pumps or syphons operating properly? ❑ ❑ ■ ❑ Are high and low water alarms operating properly? ❑ ❑ 0 ❑ Comment: Sand Filters (Low rate) Yes No NA NE (If pumps are used) Is an audible and visible alarm Present and operational? ❑ ❑ 0 ❑ Is the distribution box level and watertight? ❑ ❑ 0 ❑ Is sand filter free of ponding? 0 ❑ ❑ ❑ Is the sand filter effluent re -circulated at a valid ratio? ❑ ❑ ■ ❑ # Is the sand filter surface free of algae or excessive vegetation? ❑ ❑ 0 ❑ # Is the sand filter effluent re -circulated at a valid ratio? (Approximately 3 to 1) ❑ ❑ 0 ❑ Comment: Disinfection -Tablet Yes No NA NE Are tablet chlorinators operational? 0 ❑ ❑ ❑ Are the tablets the proper size and type? ❑ ❑ 0 ❑ Number of tubes in use? 0 Page# 4 DocuSign Envelope ID: 75BOEC30-7F1A-4COB-86EA-A181F54754E2 Permit: NCG550981 Owner -Facility: 4344 Sterling Drive Inspection Date: 07/24/2023 Inspection Type: Compliance Evaluation Disinfection -Tablet Is the level of chlorine residual acceptable? Is the contact chamber free of growth, or sludge buildup? Is there chlorine residual prior to de -chlorination? Comment: No chlorine tablets were observed in the chlorinator during the inspection. Effluent Pipe Is right of way to the outfall properly maintained? Are the receiving water free of foam other than trace amounts and other debris? If effluent (diffuser pipes are required) are they operating properly? Comment: Yes No NA NE ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ Yes No NA NE Page# 5