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HomeMy WebLinkAboutNC0026921_NPDES Permit Renewal_20090210Pat McCrory Governor February 10, 2009 MEMORANDUM To: Through: From: SUBJECT: ATA NCDENR North Carolina Department of Environment and Natural Resources Division of Water Resources Water Quality Regional Operations Section Thomas A. Reeder John E. Skvarla, III Director Secretary Joe Corporon Expedited Permit Section Belinda Henson, Water Quality Programs Regional Supervisor 2.941e.; Fayetteville Regional Office Mark Brantley, Environmental Senior Specialist / L3 Fayetteville Regional Office Minor NPDES Permit Renewal Town of Parkton Parkton WWTP NPDES Permit No. NC 0026921 Robeson County. Please find below, regional comments for the subject minor permit renewal. Applicant is not requestingmodification of the facility or increasing flow at this time. However facility has applied for an ATC to conduct some improvements at the WWTP. The proposed project includes construction of a new headworks system with spiral screen and grit removal, precast concrete flow splitter box, precast concrete chlorine contact basin, dechlorination chemical feed building, associated yard piping, electrical, and associated appurtenances. No flow increase was requested; The Fayetteville Regional Office is concerned about the actual flow to the WWTP. Currently the permitted flow is 0.2 MGD (80% of the permitted flow is 0.16 MGD, and 90% of the permitted flow is 0.19 MGD.) The town has stated in their permit renewal application that they estimate the inflow and infiltration rate at 40,000 gallons per day. Also included in the ATC request are plans to replace approximately 181 sewer services and rehabilitation of existing pump station no. 2. The average flow for 2013 has been 0.149 mgd (this includes the chronic rainfall events during the spring and summer of 2013), 0.072 mgd in 2012, and 0.087 mgd in 2011. Fayetteville Regional Office Location: 225 Green Street, Suite 414, Fayetteville, NC, 28301-5095 Phone: (910) 433-3300 \ Fax: (910) 486-0707 \ Customer Service: 1-877-623-6748 Internet: http://portal.ncdenr.orglweb/wq interne: www.ncwaterquality.org An Equal Opportunity/Affirmative Action Employer — 50% Recycled/10% Post Consumer Paper Flow violations: 5 months during the calendar year 2006 2 months during the calendar year 2007 4 months during the calendar year 2008 2 months during the calendar year 2009 2 months during the calendar year 2010 2 months during the calendar year 2013 A rating sheet is not attached as no modifications were made to this facility during the previous permit cycle. Currently WWTP is experiencing some elevated ammonia levels and they have failed chronic toxicity testing in the months of October 2013 and November 2013. They are working with some consultants to correct the problem. One suspected problem is that the WWTP is under loaded. The influent wastewater stream is very weak which could be caused by the addition of 40,000 gallons per day of I/I as stated in facility's renewal application. Facility has requested the following modifications to their sampling requirements: 1. Requested that the Mercury monitoring/limit requirements be removed. 2. Requested that the quarterly toxicity testing requirements be removed. 3. Requested that the upstream and downstream monitoring requirements for Dissolved Oxygen and Temperature be removed. 4. Requested that the conductivity monitoring be removed from the permit. Please see the town's cover letter with their application for more information about their request. The Fayetteville Regional Office asked that the sampling requirements be required according to the Division of Water Resources strategy. Based on the above information, the Fayetteville Regional Office recommends reissuance in keeping with the current basin wide strategy. Cc: Central Files CF OFFle—s AVA NCDENR North Carolina Department of Environment and Natural Resources Division of Water Quality Beverly Eaves Perdue Coleen H. Sullins Dee Freeman Governor Director Secretary February 9, 2009 Larry G Hagin Town of Parkton PO Box 55 Parkton NC 28371 SUBJECT: February 3, 2009 Compliance Evaluation Inspection Town of Parkton Parkton WWTP Permit No: NC0026921 Robeson County Dear. Mr. Hagin: Enclosed please find a copy of the Compliance Evaluation Inspection.foiiii from the inspectionconducted on February 3, 2009. The Compliance Evaluation Inspection was conducted by Mark Brantley, Environmental Chemist, of the Fayetteville Regional Office. The facility was found to be in Compliance with permit NC0026921. The cooperation of Mr. Terry Wagers, Facility's ORC, was greatly appreaciated. As a reminder, preservation of the Waters of the State can only be achieved through consistent NPDES Permit compliance. COMMENTS • At the time of the inspection the plant was very clean and neat. Mr. Wagers and staff have done a great deal of work ranging from cleaning the effluent right of way, trying to repair the drying beds for possible future use, and doing preventive maintenance on existing structures. • Facility is currently using Accelerator C (BOD supplemental food source) to help feed the plant to maintain NPDES compliance. • Laboratory Records for the month of August 2008 were compared to the DMR and appeared to be in order: ORC logbooks and maintenance records also appeared to be in good order. • • The effluent flow meter was last calibrated on January 30, 2008. Please calibrate the effluent flow meter as soon as possible since it is approaching one month being overdue. North Carolina Division of Water Quality/Aquifer Protection Section 225 Green St./ Suite 714 Fayetteville, NC 28301 Phone (910) 433-3300 FAX (910) 486-0707 • Internet: h2o.enr.state.nc.us Customer Service 1-877-623-6748 NorthCarolina 7lltilCllllf An Equal Opportunity/Affirmative Action Employer — 50% Recycled/10% Post Consumer Paper Please refer to the enclosed inspection report for additional observations and comments. If you or your staff have any questions, please call me at 910-433-3327. Sincerely, "4„/(_45..„3-- Mark Brantley Environmental Chemist Surface Water Protection Sectio Fayetteville Regional Office cc: Terry Moore Wagers, ORC Central Files Fayetteville Files United -States Environmental Protection Agency E PA 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 Code NPDES yrlmo/day Inspection 1 I NI 2 15I 31 .NC0026921 111 121 09/02/03' 17 Type Inspector Fac Type 18I c1 19I SI 20I—I Remarks ' 21IIIIIIIIIIIIIIIIIIIIIIIIIILIII1IIIIIIIIIIIIIII166 Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA Reserved 671 169 701 31 71 I NI 72 I N I 73I 1 174 75I 1 1 1 I 1 1 80 Section B: Facility Data Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include POTW name and NPDES permit Number) Parkton WWTP Loop Rd Parkton NC 28371 Entry Time/Date 01:30 PM 09/02/03 Permit Effective Date 04/12/01 Exit Time/Date 02:45 PM 09/02/03 Permit Expiration Date 09/07/31 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) /// Terry Moore Wagers/ORC/910-224-8014/ Other Facility Data Name, Address of Responsible Official/Title/Phone and Fax Number Contacted Larry G Hagin,PO Box 55 Parkton NC 28371//910-858-3360/ No Section C: Areas Evaluated During Inspection (Check only those areas evaluated) Permit Flow Measurement Operations & Maintenance • Records/Reports Self -Monitoring Program 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) off Inspector(s) Agency/Office/Phone and Fax Numbers Date ;,------ Mark Brantley /%��GW l, geze4 7 FRO WQ//910-433-3300 Ext.727/ Signature of Management Q A Reviewer - Agency/Office/Phone and Fax Numbers nDate Belinda S Henson Y � .�(. r/f � O� FRO WQ//910-433-3300 Ext.726/ - / -b c EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. Page # 1 NPDES yr/mo/day Inspection Type 81 NC0026921 111 121 09/02/03 17 181 CI (cont.) 1 Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) COMMENTS • At the time of the inspection the plant was very clean and neat. Mr: Wagers and staff have done a great deal of work ranging from cleaning the effluent right of way, trying to repair the drying beds for possible future use, and doing preventive maintenance on existing structures. • Facility is currently using Accelerator C (BOD supplemental food source) to help feed the plant to maintain NPDES compliance. • Laboratory Records for the month of August 2008 were compared to the DMR and appeared to be in order. ORC log books and maintenance records also appeared to be in good order. • The effluent flow meter was last calibrated on January 30, 2008. Please calibrate the effluent flow meter as soon as possible since it is approaching one month being overdue. Page # 2 Permit: NC0026921 Owner - Facility: Parkton VWVTP Inspection Date: 02/03/2009 Inspection Type: Compliance Evaluation Operations & Maintenance Yes No - NA NE Is the plant generally clean with acceptable housekeeping? Erin n Does the facility analyze process control'parameters, for ex: MLSS, MCRT, Settleable Solids, pH, DO, Sludge p n n rl Judge, and other that are applicable? Comment: . Permit (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? Isthe inspector granted access -to all areas for inspection? Comment Record Keeping Are records kept and maintained as required by the permit? Is at 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 111 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 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? Yes No NA NE ■nnn •nnn 1-1 m n n n nnn Yes No NA NE ■nnn ®nnn ®nnn jinn El ® Finn nnn Elnnn 00 0 annn ■nnn ®nnn ■nnn Page # 3 Permit: NC0026921 Owner -Facility: Parkton WWTP Inspection Date: 02/03/2009 Inspection Type: Compliance Evaluation Record Keeping Facility has copy of previous year's Annual Report on file for review? 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? Comment: The Plant ORC, Terry Wagers, and staff have done a lot of work in clearing the effluent right of way. Flow Measurement - Effluent # Is flow meter used for reporting?. Is flow meter calibrated annually? Is the flow meter operational? (If units are separated) Does the chart recorder match the flow meter? Comment: Please calibrate flow flow meter as soon as possible since the calibration is almost 1 month overdue. Bar Screens Type of bar screen a.Manual b.Mechanical Are the bars adequately screening debris? Is the screen free of excessive debris? Is disposal of screening in compliance? Is the unit in good condition? Comment: Bar screen is raked twice per week. Secondary Clarifier 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? Yes No NA NE ®nnn Yes No NA NE ■nnn nnn® n nnE Yes No NA NE ® nnn ■ nnn ®nnn nnn Yes No NA NE ■ n ®nnn ■nnn ■nnn ®nnn Yes No NA NE ®nnn ■ nnn ■ nnn ■ Linn ■ nnn ■ nnn Page # 4 Permit: NC0026921 Owner- Facility: Parkton WWTP Inspection Date: 02/03/2009 Inspection Type: Compliance Evaluation Secondary Clarifier Is the site free of excessive floating sludge? Is the drive unit operational? Is the return rate acceptable (low turbulence)? Is the overflow clear of excessive solids/pin floc? Is the sludge blanket level acceptable? (Approximately'/< of the sidewall depth) Comment: Sludge blankets were 1.5 feet and 8 inches in the clarifiers. Oxidation Ditches Are the aerators operational? Are the aerators free of excessive solids build up? # 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? Are settleometer results.acceptable (> 30 minutes)? Is the DO level acceptable?(1.0 to 3.0 mg/I) Are settelometer results acceptable?(400.to 800 ml/I in 30 minutes) Comment: Disinfection -Gas Are cylinders secured adequately? Are cylinders protected from direct sunlight? Is there adequate reserve supply of disinfectant? 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? Does the Stationary Source have more than 2500 Ibs of Chlorine (CAS No: 7782-50-5)? If yes, then is there a Risk Management Plan on site? If yes, then what is the EPA twelve digit ID Number? (1000- - ) If yes, then when was the RMP last updated? Comment: The chlorinecontact chamber is cleaned once per week. De -chlorination Type of system ? Yes No NA NE ■ nnn ■ nnn ■ nnn ■ nnn © nn❑ Yes No NA NE ®nnn. ■ nnn ■nnn ■ nnn ■ nnn n nn® ■ nnn nnn® Yes No NA NE ■ n n n ■ nnn ■ nnn ■ nnn ■ nnn ■ nnn n n■n np■n Yes No , NA NE Tablet Page # 5 Permit: NC0026921 Owner- Facility: Parkton WWTP Inspection Date: 02/03/2009 Inspection Type: Compliance Evaluation De -chlorination 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? Comment: Standby Power Is automatically activated standby power available? Is the generator tested by interrupting primary power source? Is the generator tested under load? Was generator tested & operational during the inspection? Do the generator(s) have adequate capacity to operate theentire wastewater site? Is there an emergency agreement with a fuel vendor for extended run on back-up power? Is the generator fuel level monitored? Comment: Generator is tested once per week under load, Pumps-RAS-WAS Are pumps in place? Are pumps operational? Are there adequate spare parts and supplies on site? Comment: Laboratory Are field parameters performed by certified personnel or laboratory? Are all other parameters(excludirig 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? Comment: Facility's contract lab is TBL laboratory in Lumberton, NC. Yes No NA NE n n • n n n®n nn®n ■ n. ® nnn 6 Yes No NA NE ® nnn • nnn ■ nnn nnn ■ nnn n nn® ■nnn Yes No NA NE • nnn o nnn n nn• Yes No NA NE © nnn • nnn • nnn ■ nnn n n■n nn®n Page # 6 Permit: NC0026921 Owner - Facility: Parkton WWTP Inspection Date: 02/03/2009 Inspection Type: Compliance Evaluation Influent Sampling Yes No NA NE # Is composite sampling flow proportional? ❑ ❑ ® ❑ Is sample collected above side streams? • ❑ ❑ ❑ Is proper volume collected? • ❑ n ❑ Is the tubing clean? o n n n # Is -proper temperature set for sample storage (kept at less than or equal to 6.0 degrees Celsius)? Q ❑ ❑ Is sampling performed according to the permit? ■ ❑ ❑ ❑ Comment: Effluent Sampling Yes No NA NE Is composite sampling flow proportional? ❑ ❑ ® n Is sample collected below all treatment units? • ❑ ❑ ❑ Is proper volume collected? • ❑ n ❑ Is the tubing clean? • n ❑ ❑ # Is proper temperature set for sample storage (kept atless than or equal to 6.0 degrees Celsius)? v ❑ Q 1-1 Is the facility sampling performed as required by the permit (frequency, sampling type representative)? iB ❑ ❑ ❑ Comment: Upstream / Downstream Sampling... Yes No NA NE Is the facility sampling performed as required by the permit (frequency, sampling type, and sampling location)? ■ Comment: nnn Page # 7