Loading...
HomeMy WebLinkAboutNC0026565_Compliance Evaluation Inspection_20190115 NORTH CAROLINA ROY COOPER Environmental Quality Governor MICHAEL S. REGAN Secretary` LINDA CULPEPPER Director January 15, 2019 Mr. Danny Shaw City of Ramseur P.O. Box 545 Ramseur, NC 27316 SUBJECT: Compliance Evaluation Inspection City of Ramseur WWTP NPDES Permit No. NC0026565 Randolph County Dear Mr. Shaw: - On January 10, 2019, Jenny Graznak and Kelli Park of this office, met with Terry Lewallen, Operator in Responsible Charge(ORC), to perform a Compliance Evaluation Inspection at the City of Ramseur wastewater treatment plant. This type of inspection consists of two basic parts: an in-office file review and an on-site inspection of the treatment facility. The attached EPA inspection form details the areas that were evaluated during this inspection. Some pertinent findings from the inspection are described in the inspection summary. The inspection found the facility to be satisfactory. If you have any questions regarding the inspection or this report, please contact Jenny Graznak or me at(336) 776-9800. Sincerely, f Sherri V. Knight, P.E. Regional Supervisor Water Quality Regional Operations Division of Water Resources Attachments: EPA Water Compliance Inspection Report cc: Central Files WSRO r-NPDES Unit`1 • DECK) North Carolina Department of Environmental Quality I Division of Water Resources Winston-Salem Regional Office 1450 W.Hanes Mill Road,Suite 300 I Winston-Salem,North Carolina 27105 336-776-9800 ( r United States Environmental Protection Agency Form Approved E PA 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 �—�N 2 [ 3 1 NC0o26565 111 121 19/01/10 117 18I,.I 19I s I 201 1 2111 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1=1 1 1 1 1 r6 Inspection Work Days Facility Self-Monitoring Evaluation Rating B1 QA Reserved 671 1 70I I 71 I I 72 LJ I N I 731 1 174 751 1 1 1 1 1 1 180 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 permit Number) 02 15PM 19/01/10 16/09/01 Ramseur WWTP - Exit Time/Date Permit Expiration Date Roundleaf Rd 03.45PM 19/01/10 21/04/30 Ramseur NC 27316 Name(s)of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) Other Facility Data /// Daniel Mark Grose/ORC/336-824-8891/ Terry Cheyenne Lewallen/ORC/336-824-3939/ Name,Address of Responsible Official/Title/Phone and Fax Number Contacted Danny R Shaw,PO Box 545 Ramseur NC - 273160545/Mayor/336-824-8530/3368246624 No Section C.Areas Evaluated During Inspection(Check only those areas evaluated) II Permit El Flow Measurement II Operations&Maintenance a Records/Reports 111 Self-Monitoring Program II Sludge Handling Disposal Facility Site Review El Effluent/Receiving Waters 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 Jennifer F Graznak WSRO WQ//336-771-5000/ (I`S(25t 1 1 19AAA-456 Aax I Signature of M ageme\t'1 A Reviewer Agency/Office/Phone and Fax Numbers Date .IL- (ir EPA Form 3560-3(Rev 9-94)Previous editions are obsoldte Page# 1 NPDES yr/mo/day Inspection Type (Cont.) 31 NC0026565 J11 121 19/01/10 I 17 18 IJ Section D:Summary of Finding/Comments(Attach additional sheets of narrative and checklists as necessary) The inspection found the facility to be satisfactory. Please note these pertinent findings from the inspection: - • (1)The facility had several violations of Total Suspended Solids during the summer of 2018(June, July, August). During this time, the ORC stated that algae had grown in the finishing pond,which he believes caused the violations. He treated the algae in the pond with copper sulfate. (2) There is no sludge digester at the plant. Instead, solids from the secondary clarifier are lime-stabilized in the sludge mixing tank prior to disposal in the 10-acre sludge storage lagoon on site. This surface disposal method is covered under permit#1WQ0010528 from the Division of Water Resources. . • Page# 2 Permit: NC0026565 Owner-Facility: Ramseur WWTP Inspection Date: 01/10/2019 Inspection Type. Compliance Evaluation Operations & Maintenance Yes No NA NE Is the plant generally clean with acceptable housekeeping'? I ❑ ❑ 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 ❑ ❑ • ❑ 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'? I ❑ ❑ ❑ Comment The permit became effective on September 1, 2016 and will expire April 30, 2021. 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)? • ❑ ❑ ❑ Are analytical results consistent with data reported on DMRs? • ❑ ❑ ❑ Is the chain-of-custody complete? I ❑ ❑ ❑ Dates,times and location of sampling Name of individual performing the sampling • Results of analysis and calibration II Dates of analysis • Name of person performing analyses ' • Transported COCs - • Are DMRs complete-do they include all permit parameters'? MI ❑ ❑ ❑ Has the facility submitted its annual compliance report to users and DWQ? ❑ 0 E ❑ (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? • ❑ ❑ ❑ Page# 3 Permit: NC0026565 Owner-Facility: Ramseur WWTP Inspection Date: 01/10/2019 Inspection Type: Compliance Evaluation Record Keeping Yes No NA NE Facility has copy of previous year's Annual Report on file for review? ❑ ❑ • ❑ Comment: Mr Lewallen measures dissolved oxygen,temperature, and pH under field parameter certification#5103. His thermometer was verified by Mentech on December 2, 2018.All other samples are analyzed by Environment One. Mr. Lewallen delivers samples to the Ramseur water treatment plant, and Environment One picks them up there. Effluent Pipe Yes No NA NE 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? ❑ ❑ III ❑ Comment Flow Measurement-Influent Yes No NA NE #Is flow meter used for reporting? Eno ❑ Is flow meter calibrated annually? • ❑ ❑ ❑ Is the flow meter operational? • ❑ ❑ ❑ (If units are separated) Does the chart recorder match the flow meter? III 0 0 ❑ Comment: An ultrasonic meter is used to report influent flow on the DMRs. Carolina Technical Services calibrated the meter on April 9,2018. Bar Screens Yes No NA NE Type of bar screen a Manual U b.Mechanical ❑ Are the bars adequately screening debris? 111 ❑ ❑ ❑ Is the screen free of excessive debris'? • ❑ ❑ ❑ Is disposal of screening in compliance'? • ❑ ❑ ❑ Is the unit in good condition'? • ❑ ❑ ❑ Comment. Bar screenings are disposed of in the Town's dead animal pit on site. Aeration Basins Yes No NA NE Mode of operation Ext.Air Type of aeration system Diffused Is the basin free of dead spots'? • 0 ❑ ❑ Are surface aerators and mixers operational'? ❑ ❑ ❑ Page# 4 Permit: NC0026565 Owner-Facility: Ramseur WWTP Inspection Date: 01/10/2019 Inspection Type: Compliance Evaluation • Aeration Basins Yes No NA NE 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'? ❑ ❑ ❑ II Is the DO level acceptable?(1.0 to 3 0 mg/I) ❑ ❑ ❑ • Comment. The aeration basin appeared black in color,which the ORC said is due to a local dye house that discharges to the plant. • 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'? • ❑ ❑ ❑ Is the site free of weir blockage'? • ❑ ❑ ❑ Is the site free of evidence of short-circuiting? • ❑ ❑ ❑ Is scum removal adequate'? ❑ ❑ ❑ Is the site free of excessive floating sludge'? • ❑ ❑ ❑ Is the drive unit operational? • ❑ ❑ ❑ Is the return rate acceptable(low turbulence)? • CICI CI Is the overflow clear of excessive solids/pin floc'? • ❑ ❑ ❑ Is the sludge blanket level acceptable?(Approximately%of the sidewall depth) -El ❑ ❑ • Comment. Influent Sampling Yes No NA NE #Is composite sampling flow proportional? - ❑ U ❑ ❑ Is sample collected above side streams? • ❑ ❑ ❑ Is proper volume collected'? • ❑ El ❑ Is the tubing clean'? • ❑ ❑ ❑ #Is proper temperature set for sample storage(kept at less than or equal to 6 0 degrees • ❑ ❑ ❑ Celsius)? Is sampling performed according to the permit? • ❑ ❑ ❑ Comment: Effluent Sampling Yes No NA NE Is composite sampling flow proportional? ❑ • ❑ ❑ Page# 5 Permit: NC0026565 • Owner-Facility: Ramseur WWTP Inspection Date: 01/10/2019 Inspection Type: Compliance Evaluation Effluent Sampling Yes No NA NE Is sample collected below all treatment units'? • 0 0 ❑ Is proper volume collected'? • 0 0 0 Is the tubing clean? - • ODD #Is proper temperature set for sample storage(kept at less than or equal to 6 0 degrees IN 0 ❑ 0 Celsius)' Is the facility sampling performed as required by the permit(frequency,sampling type • ❑ 0 0 representative)'? Comment Composite sampling is not flow proportional due to the holding time of the 5-acre finishing lagoon,which equalizes effluent flow Time composite sampling is used instead. Lagoons Yes No NA NE Type of lagoons'? #Number of lagoons in operation at time of visit'? 1 • Are lagoons operated in'? #Is a re-circulation line present'? 0 0 • ❑ Is lagoon free of excessive floating materials'? IN 0 0 ❑ #Are baffles between ponds or effluent baffles adjustable'? 0 ❑ • ❑ Are dike slopes clear of woody vegetation'? • El ❑ ❑ Are weeds controlled around the edge of the lagoon'? • 0 0 ❑ Are dikes free of seepage'? r ❑ 0 ❑ Are dikes free of erosion'? • ❑ 0 ❑ Are dikes free of burrowing animals? III 0 0 ❑ #Has the sludge blanket in the lagoon(s)been measured periodically in multiple 0 0 0 • locations'? #If excessive algae is present, has barley straw been used to help control the growth'? 0 0 • 0 Is the lagoon surface free of weeds' ❑ ❑ 0 Is the lagoon free of short circuiting'? • ❑ ❑ 0 Comment The 5-acre finishing pond the regulates effluent flow for the plant Disinfection-Gas Yes No NA NE Are cylinders secured adequately'? • 0 0 0 Are cylinders protected from direct sunlight'? • 0 0 0 Is there adequate reserve supply of disinfectant'? • 0 0 0 Is the level of chlorine residual acceptable'? 0 0 0 III Is the contact chamber free of growth, or sludge buildup'? 0 0 0 Page# 6 Permit: NC0026565 Owner-Facility: Ramseur WWTP Inspection Date: 01/10/2019 Inspection Type: Compliance Evaluation Disinfection-Gas Yes No NA NE Is there chlorine residual prior to de-chlorination' ❑ 0 0 • Does the Stationary Source have more than 2500 lbs of Chlorine(CAS No.7782-50-5)? 0 0 0 • If yes,then is there a Risk Management Plan on site? 0 0 0 If yes,then what is the EPA twelve digit ID Number'?(1000- - ) If yes,then when was the RMP last updated'? - Comment. Chlorine gas is added in the manhole prior to the chlorine contact chamber.The ORC lifted the manhole during the inspection so the inspectors could see the line. De-chlorination • Yes No NA NE Type of system? Gas Is the feed ratio proportional to chlorine amount(1 to 1)' ❑ 0 0 • Is storage appropriate for cylinders'? I 0 0 ❑ #Is de-chlorination substance stored away from chlorine containers' 0 0 0 Are the tablets the proper size and type? ❑ 0 I 0 Comment Sulfur dioxide gas is added at the end of the chlorine contact chamber right before discharge. Are tablet de-chlorinators operational'? 0 0 I 0 Number of tubes in use'? Comment: Upstream/ Downstream Sampling Yes No NA NE Is the facility sampling performed as required by the permit(frequency,sampling type,and • 0 0 ❑ sampling location)' Comment: Page# 7