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Home My WebLink AboutNC0068705_Inspection_20220406 (2)United States Environmental Protection Agency EPA Washington, D.C. 20460 Water Compliance Inspection Report Form Approved. OMB No. 2040-0057 Approval expires 8-31-98 Section A: National Data System Coding (i.e., PCS) Transaction 1 IN Code I 2 I5 I NPDES yr/mo/day Inspection Type Inspector Fac 3 I NC0068705 111 121 22/03/29 I17 18 i i 19 I S I 201 Type 21IIIIII IIIIIIIIIIIIIIIIII I IIIIII IIIIIIIIIII P6 Inspection 67I2.0 Work Days Facility Self -Monitoring I 70I2 Evaluation Rating I 71IN B1 I 72 QA I N I 731 I I I Reserved 74 751 1 I I I I I I 180 l Section B: Facility Data Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include POTW name and NPDES permit Number) Mariners Watch WWTP 16317 Mariners Watch Ct Charlotte NC 28278 Entry Time/Date 09:45AM 22/03/29 Permit Effective Date 15/07/01 Exit Time/Date 12:OOPM 22/03/29 Permit Expiration Date 20/06/30 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) /// Brian Willard Stephens//704-741-7867 / Charles Brandon Long/ORC/704-776-4443/ Other Facility Data Name, Address of Responsible Official/Title/Phone and Fax Number Contacted Dwayne Reedy,16317 Mariners Watch Ct Charlotte NC 28278//704-609-3883/ No Section C: Areas Evaluated During Inspection (Check only those areas evaluated) Permit Flow Measurement Operations & Maintenar Records/Reports Self -Monitoring Progran 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) Wes Bell of Inspector(s) Agency/Office/Phone and Fax Numbers Date -Docusiyned by: DWR/MRO WQ/704-663-1699 Ext.2192/ 4/5/2022 '-A61696D90CC3437... Signature of Manag�nEt'evi6wer W. Corey Basinger for WCB Agency/Office/Phone and Fax Numbers Date A444uv H ft/Division of Water Quality/704-235-2194/ 4.6.2 2 '-F161FB69A2D84A3... EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. Page# 1 3I NPDES yr/mo/day N C0068705 I11 121 22/03/29 17 Inspection Type 18 [j (Cont.) 1 Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) RECORD KEEPING SECTION cont'd: Effluent flows were not being reported down to the same significant figures as the flow limit. In addition, the flow values were not being rounded properly. The flow values for all applicable months (December 2021 and January 2022 at a minimum) will be revised and resubmitted. Discharge monitoring reports (eDMRs) were reviewed for the period February 2021 through January 2022. The following effluent limit violations were reported during the noted review period: - Daily maximum total residual chlorine (TRC) - September 2021, October 2021 and November 2021, - Daily maximum fecal coliform - September 2021, October 2021, December 2021 and January 2022; - Daily minimum dissolved oxygen (DO) — September 2021 and November 2021; - Daily maximum total suspended solids (TSS) — October 2021, December 2021 and January 2022; - Monthly average fecal coliform — December 2021 and January 2022; - Monthly average TSS — October 2021 and December 2021. violation was reported in February 2021 The facility failed to monitor effluent BOD, TSS, fecal coliform, flow, ammonia, DO and pH during two weeks in September 2021 and effluent temperature was not monitored for one of those weeks. An effluent DO was also not monitored during one week in November 2021. The September 2021, October 2021 and November 2021 eDMRs were submitted late. All of the above -noted violations (limit, monitoring, late reporting) will be addressed by the Division through the issuances of either Notice of Violations (NOV) or NOV/civil penalty assessments. The ORC must ensure to check the Noncompliant box on the eDMR if any violations (limit and/or monitoring) occurred during the month. LABORATORY SECTION cont'd: The DO meter did not appear to be calibrated properly. The DO meter must be calibrated according to the manufacturer's instructions and documented (Reference: NC Wastewater/Groundwater Laboratory Certification approved procedure for the analysis/calibration of DO). The ORC must ensure to perform (and document) a calibration check standard verification (7.0 SU buffer) following the initial calibration of the meter with the three buffers/standards. The calibration check standard must fall within +/- 0.1 SU of the standard (Reference: NC Wastewater/Groundwater Laboratory Certification approved procedure for the analysis/calibration of pH). If effluent field analyses are performed at multiple sites in a single day, then a post calibration check must be performed (and documented) on the DO, pH and TRC meters following the last site visit that field analyses have been performed (Reference: NC Wastewater/Groundwater Laboratory Certification approved procedure for the analysis/calibration of DO, pH and TRC). Note: The ORC has been previously emailed a link to the Division's Laboratory Certification Unit webpage to access the approved procedures for the analysis/calibration of DO, pH, temperature and TRC). The ORC and staff must ensure that the calibration logs including the following: model and serial number of the meter, proper units of measurement, times of calibration and the analyst performing the calibration. Page# 2 Permit: NC0068705 Inspection Date: 03/29/2022 Owner - Facility: Mariners Watch WWTP 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 MODE application? Is the facility as described in the permit? • ❑ ❑ ❑ # Are there any special conditions for the permit? • ❑ ❑ ❑ Is access to the plant site restricted to the general public? • ❑ ❑ ❑ Is the inspector granted access to all areas for inspection? • ❑ ❑ ❑ Comment: The Division received the permit renewal application on 1/24/2020. The last compliance evaluation inspection at this facility was performed by DWR staff on 9/27/19. Record Keeping Yes No NA NE 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)? El El ❑ • Are analytical results consistent with data reported on DMRs? • El El El Is the chain -of -custody complete? ❑ • ❑ ❑ Dates, times and location of sampling El Name of individual performing the sampling El Results of analysis and calibration ❑ Dates of analysis ■ Name of person performing analyses El Transported COCs ■ Are DMRs complete: do they include all permit parameters? • El El El Has the facility submitted its annual compliance report to users and DWQ? ❑ El • ❑ (If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified El El • El operator on each shift? Is the ORC visitation log available and current? • El ❑ ❑ Is the ORC certified at grade equal to or higher than the facility classification? • El El El 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? • El El El Facility has copy of previous year's Annual Report on file for review? El El • El Page# 3 Permit: NC0068705 Inspection Date: 03/29/2022 Owner - Facility: Mariners Watch WWTP Inspection Type: Compliance Evaluation Record Keeping Yes No NA NE Comment: Calibration (field parameters) and sampling records were not properly maintained from September 2021 through a majority of December 2021 as required by the NPDES Permit [Part II, Section D(6) Records Retention & D(7) Recording Results]. In addition, the ORC and staff must ensure to document all units of measurement (calibration Togs, sampling data), sample collector/analyst, sample collection and analysis times (field parameters) and properly list all times in either standard (am/pm) or military time. See Summary Section for additional comments. Laboratory Are field parameters performed by certified personnel or laboratory? Are all other parameters(excluding field parameters) performed by a certified lab? # Is the facility using a contract lab? # Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees Celsius)? Incubator (Fecal Coliform) set to 44.5 degrees Celsius+/- 0.2 degrees? Incubator (BOD) set to 20.0 degrees Celsius +/- 1.0 degrees? Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ ❑ ❑ • ❑ Comment: Waypointe Analytical has been contract to perform all effluent analyses with the exception of the field parameters. The ORC and staff perform DO, pH, temperature and TRC on -site: however, the ORC's company is not certified to perform DO, temperature and TRC as required by the NPDES Permit and 15A NCAC .02H .0805(g). The ORC is in the process of obtaining certification for TRC from the Division's Laboratory Certification Unit; however, DO and temperature should also be included in the certification process. See Summary Section for additional comments. Effluent Sampling Yes No NA NE Is composite sampling flow proportional? ❑ ❑ • ❑ Is sample collected below all treatment units? • ❑ ❑ ❑ Is proper volume collected? ❑ ❑ • ❑ Is the tubing clean? El El • El # Is proper temperature set for sample storage (kept at less than or equal to 6.0 El El • El degrees Celsius)? Is the facility sampling performed as required by the permit (frequency, sampling type • ❑ El El representative)? Comment: The subject permit requires effluent grab samples. Operations & Maintenance Yes No NA NE Is the plant generally clean with acceptable housekeeping? • El El El Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable El • El El Solids, pH, DO, Sludge Judge, and other that are applicable? Page# 4 Permit: NC0068705 Inspection Date: 03/29/2022 Owner - Facility: Mariners Watch WWTP Inspection Type: Compliance Evaluation Operations & Maintenance Yes No NA NE Comment: The wastewater is treated by a sequential batch reactor type treatment system. The ORC and staff should review and become familiar with the treatment facility's operation and maintenance manual and be able to make adjustments if needed. In addition, the ORC and staff should initiate (and document) process control testing to ensure proper facility operation. Please be advised that the NPDES Permit [Part II, Section C(2) Operation & Maintenance of Pollution Controls] requires the permittee to properly operate and maintain the wastewater treatment facility at all times. Aeration Basins Yes No NA NE Mode of operation Type of aeration system Diffused Is the basin free of dead spots? ■ ❑ ❑ ❑ Are surface aerators and mixers operational? ❑ ❑ • ❑ Are the diffusers operational? ❑ ❑ • ❑ Is the foam the proper color for the treatment process? • ❑ ❑ ❑ Does the foam cover less than 25% of the basin's surface? • ❑ ❑ ❑ Is the DO level acceptable? • ❑ ❑ ❑ Is the DO level acceptable?(1.0 to 3.0 mg/I) ❑ ❑ ❑ • Comment: Dissolved oxygen is provided to the biomass by a pump induced aeration system. This office recommends the incorporation of settleability tests, dissolved oxygen measurements, microscopic examinations, and mixed liquor suspended solids/mixed liquor volatile suspended solids as part of the process control program on the aeration basin/treatment process. These measurements will assist with the operation of the biological treatment process and the maintenance of the solids inventory. Secondary Clarifier Yes No NA NE Is the clarifier free of black and odorous wastewater? • ❑ ❑ ❑ Is the site free of excessive buildup of solids in center well of circular clarifier? ❑ ❑ • ❑ Are weirs level? El El • El Is the site free of weir blockage? El El • El Is the site free of evidence of short-circuiting? • El ❑ ❑ Is scum removal adequate? El El • El Is the site free of excessive floating sludge? • El El El Is the drive unit operational? El El • El Is the return rate acceptable (low turbulence)? ❑ El • ❑ Is the overflow clear of excessive solids/pin floc? El El • El Is the sludge blanket level acceptable? (Approximately'/4 of the sidewall depth) ❑ • El ❑ Page# 5 Permit: NC0068705 Inspection Date: 03/29/2022 Owner - Facility: Mariners Watch WWTP Inspection Type: Compliance Evaluation Secondary Clarifier Yes No NA NE Comment: The sludge blanket appeared elevated during the inspection. In addition, solids were observed entering the chlorination system once the decant pump was activated. Sludge blanket measurements should be periodically performed and documented on the clarifier. It is also recommended that the location (depth) of the decant pump system be determined to ensure the sludge blanket level is below the pump inlet structure. Disinfection -Tablet Yes No NA NE Are tablet chlorinators operational? • ❑ ❑ ❑ Are the tablets the proper size and type? ■ ❑ ❑ ❑ Number of tubes in use? 2 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: A high volume of wastewater passes through the tablet chlorinator (following the settling treatment phase) prior to the chlorine contact chamber. The ORC and staff must ensure both sleeves are full of chlorine tablets to provide adequate disinfection for the high flow rate. In addition, the chlorine contact chamber needed to be pumped out within the near future. Greenway Solutions would be contracted to remove any wastewater solids from the treatment facility. De -chlorination Yes No NA NE Type of system ? Tablet Is the feed ratio proportional to chlorine amount (1 to 1)? • ❑ ❑ ❑ Is storage appropriate for cylinders? ❑ ❑ • ❑ # Is de -chlorination substance stored away from chlorine containers? ❑ ❑ • ❑ Comment: Are the tablets the proper size and type? • ❑ ❑ ❑ Are tablet de -chlorinators operational? • ❑ ❑ ❑ Number of tubes in use? 2 Comment: Flow Measurement - Effluent # Is flow meter used for reporting? Is flow meter calibrated annually? Is the flow meter operational? Yes No NA NE ❑ ❑ • ❑ ❑ ❑ • ❑ Page# 6 Permit: NC0068705 Inspection Date: 03/29/2022 Owner - Facility: Mariners Watch WWTP Inspection Type: Compliance Evaluation Flow Measurement - Effluent Yes No NA NE (If units are separated) Does the chart recorder match the flow meter? ❑ ❑ ■ ❑ Comment: Flow measurements are calculated by multiplying the pump run times by the pump flow rate. Pump Station - Effluent Yes No NA NE Is the pump wet well free of bypass lines or structures? ■ ❑ ❑ ❑ Are all pumps present? • ❑ El El Are all pumps operable? • El El El Are float controls operable? • El ❑ ❑ Is SCADA telemetry available and operational? El El • El Is audible and visual alarm available and operational? • El El El Comment: 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? Yes No NA NE ❑ ❑ • ❑ Comment: The effluent appeared slightly turbid with trace suspended solids and no foam. The effluent is pumped (via submerged outfall) to the receiving stream. Page# 7