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Home My WebLink AboutNC0004961_Bioassay Compliance Inspection_20171113 (2)zns` Water Resources ENVIRONMENTAL QUALITY November 13, 2017 Mr. Ronnie Goodman, Superintendent Power Generation Operations/Plant Demolition Duke Energy Carolinas. LLC Riverbend Steam Station 175 Steam Plant Road Mount Holly, NC 28120 Dear Mr. Goodman: ROY COOPER Governor MICHAEL S. REGAN Secretary LINDA CULPEPPER Interim Director RECEIVED/NCDEQ/M NOV 21 2017 Nater Quality Permitting Section Subject: Bioassay Compliance Inspection Riverbend Steam Station NPDES Permit No. NC0004961 Gaston County Enclosed is a copy of the Compliance Evaluation Inspection for the inspection conducted at the subject facility on November 7, 2017, by Ori Tuvia and Brandy Costner. Richard Massey's cooperation during the site visit was much appreciated. Please advise the staff involved with this NPDES Permit by forwarding a copy of the enclosed report. Chronic toxicity split samples were taken during the inspection. Results of the split samples will be forwarded upon completion of analyses. The report should be self-explanatory; however, should you have any questions concerning this report, please do not hesitate to contact Ori Tuvia at (704) 235-2190, or at ori.tuvia@ncdenr.gov. Sincerely, Ori Tuvia, Environmental Engineer Mooresville Regional Office Division of Water Resources, DEQ Cc: NPDES Unit Gaston County Health Department MRO Files Richard Massey (E -Copy) Mooresville Regional Office Location; 610 East Center Ave, Suite 301 Mooresville, NC 28115 Phone. (704) 663-1699 \ Fax. (704) 663-6040 \ Customer Service: 1-877-623-6748 United States Environmental Protection Agency Fort 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 15 1 3 I NC0004961 I11 12 17/11/07 17 18 I E I 19 I c I 20I 211111 I I I I I III 1 1 1 1 1 1 I1 1 111 1 1 111 11 111111 1111 r6 Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA --Reserved 67 120 70 71 L�„ 72 N 73 I I 174 75 80 L_I L-1 I I I h Section B Facility 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) 09 55AM 17/11/07 16/12/01 Riverbend Steam Station NC Hwy 16 Exit Time/Date Permit Expiration Date Mount Holly NC 28120 12 30PM 17/11/07 20/02/29 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) Other Facility Data Richard S Massey/ORC/704-263-3202/ Name, Address of Responsible Official/Title/Phone and Fax Number Contacted Tim Hd1,400 S Tryon St Charlotte NC 28202/Station Manager/919-546-2565/ 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 Brandy Costner MRO WQ//704-235-2185/ WQ//704-663-1699/ On A Tuvia MRO 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 _ _ _ y., _ 13 �N �f W ` • /r Page# s NPDES 31 NC0004961 I11 yr/mo/day Inspection Type 12 17/11/07 17 18 1 Q I Section D Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) Brandy Costner co -inspector. Chronic toxicity split samples were taken during the inspection Results of the split samples will be forwarded upon completion of analyses. Attached a flow diagram with a detailed breakdown of the ash basin dewatering treatment unit P 1 Page# 2 Permit NC0004961 Owner - Facility Riverbend Steam Station Inspection Date 11/07/2017 Inspection Type Bioassay Compliance Permit Yes No NA NE (If the present permit expires in 6 months or less). Has the permittee submitted a new ❑ ❑ ❑ ❑ application? M ❑ ❑ ❑ 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 subject permit expires on 2/29/2020 ❑ September 2017. No flow from outfalss 001. 002A. seep 1, seep 3. seep 4 seep 5, seep 6. The facility has been shut down since March 2013 Duke Energy is progressing towards the seep 9. seep 10, seep 11 and seep 12. closure of the ash basins and demolishing the plant infrastructure within the next few years. Dates of analysis ❑ Duke Energy is in the process of dewatering the ash basins Name of person performing analyses ❑ 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? M ❑ ❑ ❑ Are all records maintained for 3 years (lab reg required 5 years)? ❑ ❑ ❑ M Are analytical results consistent with data reported on DMRs? 0 ❑ ❑ ❑ Is the chain -of -custody complete? 0 ❑ ❑ ❑ Dates, times and location of sampling ❑ COCs. ORC logs and calibration logs were reviewed for the period March 2017 through Name of individual performing the sampling ❑ September 2017. No flow from outfalss 001. 002A. seep 1, seep 3. seep 4 seep 5, seep 6. Results of analysis and calibration ❑ seep 9. seep 10, seep 11 and seep 12. Dates of analysis ❑ Name of person performing analyses ❑ Transported COCs ❑ Are MRS complete do they include all permit parameters? 0 ❑ ❑ ❑ Has the facility submitted its annual compliance report to users and DWQ? ❑ ❑ 0 ❑ (if the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified operator ❑ ❑ 0 ❑ on each shift? Is the ORC visitation log available and current? 0 ❑ ❑ ❑ Is the ORC certified at grade equal to or higher than the facility classification? 0 ❑ ❑ ❑ Is the backup operator certified at one grade less or greater than the facility classification? 0 ❑ ❑ ❑ Is a copy of the current NPDES permit available on site? 0-11 ❑ ❑ Facility has copy of previous year's Annual Report on file for review? ❑ ❑ 0 ❑ Comment The records reviewed during the inspection were organized and well maintained MRS. COCs. ORC logs and calibration logs were reviewed for the period March 2017 through September 2017. No flow from outfalss 001. 002A. seep 1, seep 3. seep 4 seep 5, seep 6. seep 9. seep 10, seep 11 and seep 12. Page# 3 Permit NC0004981 Owner - Facility Riverbend Steam Station Yes No NA NE Is composite sampling flow proportional? ❑ ❑ Inspection Date 11/07/2017 Inspection Type Bioassay Compliance ❑ Is sample collected below all treatment units? M ❑ Record Keening Yes No NA NE Laboratory Yes No NA NE Are field parameters performed by certified personnel or laboratory? ❑ ❑ ❑ ❑ Are all other parameters(excluding field parameters) performed by a certified lab? E ❑ ❑ ❑ # Is the facility using a contract lab? N ❑ ❑ ❑ # 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? ❑ ❑ N ❑ Incubator (BOD) set to 20 0 degrees Celsius +/- 10 degrees? ❑ ❑ 0 ❑ Comment The facility is certified to perform on-site field analyses (pH and temperature) under laboratory certification #5157 Duke Energy's Environmental Services Laboratory (Certification #248) and contracted Labs ETS. Inc. (toxicity). PACE (Sample collection from seeps and trubidty) and Prism (Effluent discharge collection) are used for analytical support Effluent Sampling Yes No NA NE Is composite sampling flow proportional? ❑ ❑ 0 ❑ Is sample collected below all treatment units? M ❑ ❑ ❑ Is proper volume collected? 0 ❑ ❑ ❑ Is the tubing clean? ❑ ❑ E ❑ # Is proper temperature set for sample storage (kept at less than or equal to 6 0 degrees ❑ ❑ ❑ Celsius)? Is the facility sampling performed as required by the permit (frequency, sampling type 0 ❑ ❑ ❑ representative)? Comment The subject permit requires effluent arab samples Chronic toxicity split samples were taken during the inspection Results of the split samples will be forwarded upon completion of analyses. 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 ❑ ❑ M ❑ Solids, pH, DO, Sludge Judge, and other that are applicable? Comment Ash in the ash stack is currently beirig removed and transported using rail system to transport the ash to a permitted site in Moncure. North Carolina Equalization Basins Yes No NA NE Is the basin aerated? ❑ ❑ M ❑ Is the basin free of bypass lines or structures to the natural environment? M ❑ ❑ ❑ Page# 4 Permit NC0004961 Inspection Date 11/07/2017 Owner -Facility Riverbend Steam Station Inspection Type Bioassay Compliance Equalization Basins Yes No NA NE Is the basin free of excessive grease? M ❑ ❑ ❑ Are all pumps present? 0 ❑ ❑ ❑ Are all pumps operable? 0 ❑ ❑ ❑ Are float controls operable? ❑ ❑ 0 ❑ Are audible and visual alarms operable? ❑ ❑ E ❑ # Is basin size/volume adequate? ❑ ❑ 0 ❑ Comment The facility EQ basin is used to ensure study flow into the treatment plant The EQ also receives backflow of residual solids in the treatment process (supernate) 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 Discharge from the permitted outfall and seeps did not appear to negatively impact the stream Page# 5