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Home My WebLink AboutNC0047091_Compliance Evaluation Inspection_20201104 (2)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 1 2 u 3 I NCO047091 I11 121 20/11/04 I17 18I � I 19 I s I 20L] 21IIIIII IIIIIIIIIII IIIIIII I IIIIII I11111111II r6 Inspection Work Days Facility Self -Monitoring Evaluation Rating 131 QA ---------------------- Reserved ------------------- 67 I 72 I ni I 71 I 74 79 1 1 1 1 L �80 701LJ � I 711 LL -1 I I 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) 10:32AM 20/11/04 19/06/01 Silver Maples Community 2812 Plantation Rd Exit Time/Date Permit Expiration Date Concord NC 28027 11:28AM 20/11/04 23/11/30 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) Other Facility Data Dustin Kyle Metreyeon/ORC/704-506-4255/ Name, Address of Responsible Official/Title/Phone and Fax Number Contacted Makaylah Jarrett,2812 Plantation Rd Nw Concord NC 28027//704-786-5577/7047888945 No Section C: Areas Evaluated During Inspection (Check only those areas evaluated) Permit 0 Flow Measurement Operations & Maintenar Records/Reports Self -Monitoring Progran 0 Sludge Handling Dispo: Facility Site Review Effluent/Receiving Wate Laboratory 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 DocuSigned by: Roberto Scheller E�� DWR/MRO WQ/252-946-6481/ 11/13/2020 91 C2A007838943E... Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date W. Corey Basinger DWR/Division of Water Quality/704-235-2194/ EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. DocuSigned by: E11/17/2020 A14CC681AF27425... Page# NPDES yr/mo/day Inspection Type NCO047091 I11 12I 20/11/04 117 18 i c i (Cont.) Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) Compliance history was reviewed from September 2019 through August 2020. Violations were reportec on 2/2020 NOV-2020-LV-0258, 4/2020 NOV-2020-LV-0478, 5/2020 NOV-2020-1-M-0061, 7/2020 NOV-2020-LV-0669, 8/2020 NOV-2020-LV-0747. Flooding conditions of the WWTP were reported on 1 /2020, 2/2020, 4/2020, 5/2020. Review of Cabarrus County Flood Maps reveal that Silver Maples WWTP is sitivated within the Rocky River floodplain with the Base Flood Elevation (BFE) of 588.6'. Operator has reported facility being flooded 4 times during compliance review period. High flow conditions in the Rocky River results in effluent backing up into the WWTP. The backing up of effluent results in V-notch weir plate being in a flooded condition that result in incorrect flow readings. The operator of subject facility was advised to note times WWTP was in a flooded weir plate conditions on a-dmr. It is suspected that flooding conditions are resulting in false effluent vioaltions at this facility. Operation and Maintenance issues noted during inspection: - A tree has smashed down fence and allows access to WWTP. Tree should be removed and fence repaired. - Trees and limbs hanging over fence and treatment plant should be cut back to prevent leaves from falling into WWTP. - No maintenance records for oil changes on aeration blowers or change of air filters. - Blower platform is rotting out and floor is sagging. Platform should be repaired or replaced. Page# Permit: NCO047091 Owner -Facility: Silver Maples Community Inspection Date: 11/04/2020 Inspection Type: Compliance Evaluation 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? 0 ❑ ❑ ❑ # Are there any special conditions for the permit? ❑ ❑ 0 ❑ Is access to the plant site restricted to the general public? ❑ 0 ❑ ❑ Is the inspector granted access to all areas for inspection? E ❑ ❑ ❑ Comment: Current permit became effective on Jume 1, 2019 and expires on November 30, 2023. Permit is for operation of a 0.080 MGD WWTP that discharges into the Rocky River in the Yadkin Dee -Dee River Basin. Record Keeping Are records kept and maintained as required by the permit? Is all required information readily available, complete and current? Are all records maintained for 3 years (lab. reg. required 5 years)? Are analytical results consistent with data reported on DMRs? Is the chain -of -custody complete? Dates, times and location of sampling Name of individual performing the sampling Results of analysis and calibration Dates of analysis Name of person performing analyses Transported COCs Are DMRs complete: do they include all permit parameters? Has the facility submitted its annual compliance report to users and DWQ? (If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified operatc on each shift? Is the ORC visitation log available and current? Is the ORC certified at grade equal to or higher than the facility classification? Is the backup operator certified at one grade less or greater than the facility classification Is a copy of the current NPDES permit available on site? Facility has copy of previous year's Annual Report on file for review? Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ ■ ❑ ❑ ❑ ❑ ■ ❑ ❑ ❑ ❑ ■ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ ❑ ❑ ❑ ❑ Comment: Annual Report is required for 2019. Annual report was not located on Silver Maples MHP website. Laboratory Yes No NA NE Page# 3 Permit: NCO047091 Owner -Facility: Silver Maples Community Inspection Date: 11/04/2020 Inspection Type: Compliance Evaluation Laboratory Yes No NA NE Are field parameters performed by certified personnel or laboratory? 0 ❑ ❑ ❑ Are all other parameters(excluding field parameters) performed by a certified lab? 0 ❑ ❑ ❑ # Is the facility using a contract lab? 0 ❑ ❑ ❑ # Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees N ❑ ❑ ❑ Celsius)? Incubator (Fecal Coliform) set to 44.5 degrees Celsius+/- 0.2 degrees? ❑ ❑ 0 ❑ Incubator (BOD) set to 20.0 degrees Celsius +/- 1.0 degrees? ❑ ❑ 0 ❑ Comment: K&W Labs performing laboratory analysis (704-888-1211). 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: Service records of aeration blowers not avalible. Stand blowers are mounted on is rotten and floor is sagging and in need of repairs. Tree has smashed fence and should be repaired Trees and limbs are hanging over treatment plant dropping leaves into plant blocking RAS and WAS air lift pumps. Aerobic Digester Yes No NA NE Is the capacity adequate? 0 ❑ ❑ ❑ Is the mixing adequate? 0 ❑ ❑ ❑ Is the site free of excessive foaming in the tank? 0 ❑ ❑ ❑ # Is the odor acceptable? 0 ❑ ❑ ❑ # Is tankage available for properly waste sludge? 0 ❑ ❑ ❑ Comment: Bio-solids are removed for disposal by L&L Environmental Services. Bar Screens Yes No NA NE Type of bar screen a.Manual b.Mechanical ❑ Are the bars adequately screening debris? 0 ❑ ❑ ❑ Is the screen free of excessive debris? 0 ❑ ❑ ❑ Is disposal of screening in compliance? 0 ❑ ❑ ❑ Is the unit in good condition? 0 ❑ ❑ ❑ Comment: Bar Screen has been replaced with new bar screen. Page# 4 Permit: NCO047091 Owner -Facility: Silver Maples Community Inspection Date: 11/04/2020 Inspection Type: Compliance Evaluation Bar Screens Yes No NA NE Primary Clarifier Yes No NA NE Is the clarifier free of black and odorous wastewater? 0 ❑ ❑ ❑ Is the site free of excessive buildup of solids in center well of circular clarifier? 0 ❑ ❑ ❑ Are weirs level? ❑ ❑ ❑ Is the site free of weir blockage? ❑ ❑ ❑ Is the site free of evidence of short-circuiting? 0 ❑ ❑ ❑ Is scum removal adequate? 0 ❑ ❑ ❑ Is the site free of excessive floating sludge? 0 ❑ ❑ ❑ Is the drive unit operational? ❑ ❑ 0 ❑ Is the sludge blanket level acceptable? ❑ ❑ ❑ Is the sludge blanket level acceptable? (Approximately'/4 of the sidewall depth) ❑ ❑ ❑ Comment: Aeration Basins Yes No NA NE Mode of operation Ext. Air Type of aeration system Is the basin free of dead spots? 0 ❑ ❑ ❑ Are surface aerators and mixers operational? ❑ ❑ 0 ❑ Are the diffusers operational? 0 ❑ ❑ ❑ Is the foam the proper color for the treatment process? 0 ❑ ❑ ❑ Does the foam cover less than 25% of the basin's surface? 0 ❑ ❑ ❑ Is the DO level acceptable? ❑ ❑ ❑ Is the DO level acceptable?(1.0 to 3.0 mg/I) ❑ ❑ ❑ Comment: Secondary Clarifier Yes No NA NE Is the clarifier free of black and odorous wastewater? 0 ❑ ❑ ❑ Is the site free of excessive buildup of solids in center well of circular clarifier? ❑ ❑ 0 ❑ Are weirs level? 0 ❑ ❑ ❑ Is the site free of weir blockage? 0 ❑ ❑ ❑ Is the site free of evidence of short-circuiting? 0 ❑ ❑ ❑ Is scum removal adequate? 0 ❑ ❑ ❑ Page# 5 Permit: NCO047091 Inspection Date: 11/04/2020 Owner -Facility: Silver Maples Community Inspection Type: Compliance Evaluation Secondary Clarifier Yes No NA NE Is the site free of excessive floating sludge? ❑ ❑ ❑ ❑ Is the drive unit operational? ❑ ❑ 0 ❑ Is the return rate acceptable (low turbulence)? 0 ❑ ❑ ❑ Is the overflow clear of excessive solids/pin floc? 0 ❑ ❑ ❑ Is the sludge blanket level acceptable? (Approximately'/ of the sidewall depth) ❑ ❑ ❑ 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? 2 Is the level of chlorine residual acceptable? 0 ❑ ❑ ❑ Is the contact chamber free of growth, or sludge buildup? 0 ❑ ❑ ❑ Is there chlorine residual prior to de -chlorination? 0 ❑ ❑ ❑ Comment: De -chlorination Yes No NA NE Type of system ? Tablet Is the feed ratio proportional to chlorine amount (1 to 1)? 0 ❑ ❑ ❑ Is storage appropriate for cylinders? ❑ ❑ 0 ❑ # Is de -chlorination substance stored away from chlorine containers? 0 ❑ ❑ ❑ Comment: Are the tablets the proper size and type? 0 ❑ ❑ ❑ Are tablet de -chlorinators operational? 0 ❑ ❑ ❑ Number of tubes in use? 2 Comment: Flow Measurement - Effluent Yes No NA NE # Is flow meter used for reporting? 0 ❑ ❑ ❑ Is flow meter calibrated annually? 0 ❑ ❑ ❑ Is the flow meter operational? 0 ❑ ❑ ❑ (If units are separated) Does the chart recorder match the flow meter? 0 ❑ ❑ ❑ Comment: Flow meter last calibrated on 6/15/2020 Page# 6 Permit: NCO047091 Owner -Facility: Silver Maples Community Inspection Date: 11/04/2020 Inspection Type: Compliance Evaluation Flow Measurement - Effluent Yes No NA NE Effluent Sampling Yes No NA NE Is composite sampling flow proportional? 0 ❑ ❑ ❑ Is sample collected below all treatment units? 0 ❑ ❑ ❑ Is proper volume collected? 0 ❑ ❑ ❑ Is the tubing clean? 0 ❑ ❑ ❑ # Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees 0 ❑ ❑ ❑ Celsius)? Is the facility sampling performed as required by the permit (frequency, sampling type 0 ❑ ❑ ❑ representative)? Comment: Page# 7