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Home My WebLink AboutNC0021156_20180219_NOV2018PC0025_BIMSUnited 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 I 2 15 I 3 I NCO021156 111 12 I 18/01/13 I17 18 I S i 19 LG] i 201 I 211111 1 1 1 1 1 111 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 111 1 1 1 1 1 166 Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA ----------------------Reserved------------------- 67 1.0 70 Id I 71 73I i74 751 I I I 1 80 I—I I„t72I� 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 oermit Number) 10:35AM 18/01/13 11/08/01 Mount Holly WWTP 165 Broome St Exit Time/Date Permit Expiration Date Mount Holly NC 28120 01:30PM 18/01/13 15/02/28 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) Other Facility Data Ralph E. Douglas/ORC// Name, Address of Responsible Official/Title/Phone and Fax Number Contacted David Johnson,PO Box 406 Mt Holly NC 28120/1-Itility Director/704-951-0074/ No Section C: Areas Evaluated During Inspection (Check only those areas evaluated) Permit Flow Measurement Operations & Maintenance Records/Reports Self -Monitoring Program Sludge Handling Disposal Facility Site Review Effluent/Receiving Waters 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 Maria Schutte Division of Water Quality//704-663-1699) Ori A Tuvia MRO WQ//704-663-1699/ Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date W. Corey Basinger MRO WQ//704-235-2194/ EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. DocuSigned by: -11 0 A14CC681 AF27425... Page# NPDES yr/mo/day Inspection Type NCO021156 111 121 18/01/13 1 17 18 JCJ Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) Page# Permit: NCO021156 Inspection Date: 01/13/2018 Owner - Facility: Mount Holly 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 0 ❑ ❑ ❑ application? 0 ❑ ❑ ❑ 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? 0 ❑ ❑ ❑ Comment: The subject permit expired on 2/28/2015. The facility had sent a permit renewal application. Record Keeping Yes No NA NE Are records kept and maintained as required by the permit? 0 ❑ ❑ ❑ Is all required information readily available, complete and current? 0 ❑ ❑ ❑ Are all records maintained for 3 years (lab. reg. required 5 years)? 0 ❑ ❑ ❑ Are analytical results consistent with data reported on DMRs? 0 ❑ ❑ ❑ Is the chain -of -custody complete? 0 ❑ ❑ ❑ 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 CM 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 operator ❑ ❑ ❑ 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? 0 ❑ ❑ ❑ Comment: For the most Dart the records reviewed durina the insaection were oraanized and well maintained. DMRs, CDCs, bench sheets, calibration logs and ORC logs, were reviewed for the period January 2017 through December 2017. During the records review it was discovered the facility has conducted but not reported an annual pollutant scan on January 2017. Facility CIRC will resubmit the EDMR for January 2017 to include this information. Page# 3 Permit: NCO021156 Owner - Facility: Mount Holly WWTP Inspection Date: 01/13/2018 Inspection Type: Compliance Evaluation Yes No NA NE Is composite sampling flow proportional? 0 ❑ Influent Sampling Yes No NA NE # Is composite sampling flow proportional? 0 ❑ ❑ ❑ Is sample collected above side streams? 0 ❑ ❑ ❑ Is proper volume collected? 0 ❑ ❑ ❑ Is the tubing clean? N ❑ ❑ ❑ # Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees 0 ❑ ❑ ❑ Celsius)? S ❑ ❑ ❑ Is sampling performed according to the permit? 0 ❑ ❑ ❑ Comment: The subject permit requires influent BOD and TSS composite samples. Regular sampler aliquot verifications are performed and documented 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 S ❑ ❑ ❑ representative)? Comment: The subiect Dermit reauires composite and arab effluent samples. Weeklv sampler aliauot verifications are performed and documented Upstream / Downstream Sampling Yes No NA NE Is the facility sampling performed as required by the permit (frequency, sampling type, and 0 ❑ ❑ ❑ sampling location)? Comment: 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 0 ❑ ❑ ❑ Celsius)? Incubator (Fecal Coliform) set to 44.5 degrees Celsius+/- 0.2 degrees? ❑ ❑ ❑ Incubator (BOD) set to 20.0 degrees Celsius +/- 1.0 degrees? ❑ ❑ 0 ❑ Page# 4 Permit: NCO021156 Inspection Date: 01/13/2018 Laboratory Owner - Facility: Mount Holly WWTP Inspection Type: Compliance Evaluation Yes No NA NE Comment: Influent and effluent analvses (includina field parameters) are Derformed under the Citv's laboratory certification #215. Shealy Environmental Services, Inc. (LTMP, low level mercury, metals, nutrients) and ETS Labs (toxicity) have also been contracted to provide analytical support. The laboratory instrumentation used for field analyses appeared to be properly calibrated/verified and documented. 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: The facility had a major failure to one of its three aeration basins. The basin will be out of service permanently. At the time of the inspection, the facility appeared to be properly operated and well maintained. The ORC and staff incorporate a comprehensive process control program with all measurements being properly documented and maintained on-site. Bar Screens Type of bar screen Yes No NA NE a.Manual Yes No NA NE Is the basin aerated? ❑ ❑ b.Mechanical ❑ Is the basin free of bypass lines or structures to the natural environment? 0 ❑ 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: Two manual bar screens. One for the influent from the city of Mount Holly and the second for Are audible and visual alarms operable? the influent of A&E industry. Screenings are disposed at the County Landfill. 0 ❑ # Is basin size/volume adequate? Equalization Basins Yes No NA NE Is the basin aerated? ❑ ❑ 0 ❑ Is the basin free of bypass lines or structures to the natural environment? 0 ❑ ❑ ❑ Is the basin free of excessive grease? 0 ❑ ❑ ❑ Are all pumps present? 0 ❑ ❑ ❑ Are all pumps operable? 0 ❑ ❑ ❑ Are float controls operable? 0 ❑ ❑ ❑ Are audible and visual alarms operable? ❑ ❑ 0 ❑ # Is basin size/volume adequate? 0 ❑ ❑ ❑ Comment: The equalization basin is equipped with three operational pumps. Page# 5 Permit: NCO021156 Inspection Date: 01/13/2018 Aeration Basins Mode of operation Type of aeration system 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/1) Owner - Facility: Mount Holly WWTP Inspection Type: Compliance Evaluation Yes No NA NE Ext. Air Surface Yes No NA NE Is the clarifier free of black and odorous wastewater? ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ❑ ❑ ■ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ Comment: The facility had a major failure to one of its three aeration basins. The basin will be out of service permanently. Aeration Basin calculations by Willis Engineers indicate the facility will be able to operate under it's normal load, 4 MGD. Lime is added on an as -needed basis to maintain appropriate alkalinity/pH levels 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? ❑ ❑ ❑ ❑ Is the site free of weir blockage? ❑ ❑ ❑ ❑ ❑ Is the site free of evidence of short-circuiting? ❑ ❑ ❑ Is scum removal adequate? 0 ❑ ❑ ❑ Is the site free of excessive floating sludge? 0 ❑ ❑ ❑ 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 1/, of the sidewall depth) E ❑ ❑ ❑ Comment: Both secondary clarifiers were oDerational and in service. Both clarifiers required maintenance. At the time of the inspection the clarifier weir had excessive algae -growth and small conecting sections were missing allowing for less than optimal clarfier operation/ Pumps -RAS -WAS Yes No NA NE Are pumps in place? 0 ❑ ❑ ❑ Are pumps operational? 0 ❑ ❑ ❑ Are there adequate spare parts and supplies on site? ❑ ❑ ❑ 0 Comment: Page# 6 Permit: NCO021156 Owner - Facility: Mount Holly WWTP Yes No NA NE Type of system ? Gas ❑ Inspection Date: 01/13/2018 Inspection Type: Compliance Evaluation ❑ Is the feed ratio proportional to chlorine amount (1 to 1)? 0 ❑ Pumps -RAS -WAS Yes No NA NE Disinfection -Gas Yes No NA NE Are cylinders secured adequately? 0 ❑ ❑ ❑ Are cylinders protected from direct sunlight? 0 ❑ ❑ ❑ Is there adequate reserve supply of disinfectant? 0 ❑ ❑ ❑ 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 ❑ ❑ ❑ Does the Stationary Source have more than 2500 lbs of Chlorine (CAS No. 7782-50-5)? 0 ❑ ❑ ❑ If yes, then is there a Risk Management Plan on site? 0 ❑ ❑ ❑ If yes, then what is the EPA twelve digit ID Number? (1000- - ) 1000-0016-6562 If yes, then when was the RMP last updated? Comment: De -chlorination Yes No NA NE Type of system ? Gas ❑ ❑ ❑ 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? 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: The flow meter is calibrated annually and was last calibrated on 8/15/2017 by ClearWater, Inc. Page# 7 Permit: NCO021156 Owner - Facility: Inspection Date: 01/13/2018 Inspection Type: Mount Holly WWTP Compliance Evaluation Is the capacity adequate? 0 ❑ Effluent Pipe Yes No NA NE Is right of way to the outfall properly maintained? 0 ❑ ❑ ❑ Are the receiving water free of foam other than trace amounts and other debris? 0 ❑ ❑ ❑ If effluent (diffuser pipes are required) are they operating properly? ❑ ❑ 0 ❑ Comment: The effluent appeared clear with trace suspended solids and no foam. The receiving stream did not appear to be negatively impacted by solids. 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: Waste activated sludge is pumped into two (2) 750,000 gallon holding tanks equipped for storage and aeration. Bio -solids are land applied by a contracted company (Synagro) under the authority of Permit No. WQ0001863. Page# 8