The URL can be used to link to this page

Home My WebLink AboutMarshall Steam Station (4)NCDENR North Carolina Department of Environment and Natural' Resources. Division of Water Quality Beverly Eaves Perdue Coleen H Sullins Dee Freeman Governor . ' Director Secretary July 8,,2010 Mr. Allen Stowe, Water Management Duke Energy Post Office Box 1006/EC13K Charlotte, North Carolina 28201-1006 Subject: Compliance Sampling Inspection Marshall Steam Station NPDESTermit No. NC0004987 Catawba County, N.C. Dear Mr. Stowe: Enclosed is a copy of the Compliance Sampling Inspection Report,for the inspection conducted at the,subject facility on June 7, 2010 by Ms. Donna Hood and Mr. Wes Bell of the Mooresvtle'Regional Office and,accompanied by Ms Autumn Romanski of the Raleigh Regional Office. Please advise the facility's Operator -in -Responsible Charge of our findings by forwarding a copy of the enclosed report. The results of the analyses collected by DWQ Staff will be se -fit to you under separate cover. '-The facility has several stormwater outfalls that discharge'into waters of the State Although .he facility operates under an internal stormwater management program, potential exposures to the,stormwater runoff as a result of the facility',s operations exist. Following discussions with the Division's Stormwater Permitting Unit, the stormwater discharges will need to be covered under an individual stormwater permit. A completed permit application and supporting documentation (including fee) should be, mailed to the attention of Bradley Bennett, Supervisor, DWQ/Stormwater Permitting Unit, 1617 Mail Service Center, Raleigh, N.C. 27699- 1617. The permit application and supporting information can be found at the following website address. http://portal.ncdenr.orgjweb/wq/ws/su/npdessw#Generdl Permits NPDES. The application and supporting documentation (including fee), should be submitted, to the Division within 30 days'following receipt of this report. Mooresville Regional Office Location 610 East Center Ave, Suite 301 Mooresville, NC 28115 One Phone (704),663-16991 Fax (704)'663.60401 Customer Service `7-87,7.623 6748 NorthCarolina Internet. http/lportal'ncdenrorglwebNuq An Equal Opportunity 1 ARrrnabve Action Employer— 50% Recycled/10% Post Consumer paper �atlrra!!r� 'Mr. Allen Stowe Page Two July 8, 2010 Should you have questions concerning this report, please do not hesitate to contact Mr. Bell at (704) 663-1699 or Mr Bennett at (919) 807-6378. Sincerely, Robert B. Krebs Regional Supervisor, Surface Water Protection Enclosuie: Inspection Report cc: Catawba County Health -Deportment a Q - United States Environmental Protection Agency Form Approved EPA Washington, D C,20460 OMB No 2040-0057 Water Com o Mance Inspection Report Approval expires 8-31-98 Section A National Data System Coding (i_e , PCS) Transaction Code NPDES yr/moiday Inspection Type Inspector Fac Type 1 17,11 2 JUS 31 NC10004987 Ill 121 10/06/07 117 181 SI 19L 20IU� Remarks 2111111'illl-Illllli Illllflll`IIIIIIIIIIII'1111111116 Inspection Work Days Facility Self'Monttonng,Evaluation,Rating 61' QA - 671' 1 :5 169 701 41 711 NJ 721 NJ 73I I 174 751 I I 1 1 I I 18d W Section B Facility Data Name and location of Facility, Inspected (For Industrial Userscdischarging,to'POTW, also include Entry Time/Date Permit Effective Date 'POTW name:and NPDES permit Number) 10.00 AM 10/06/07 09/07/01 {star&hall Steam `Station Exit Time/Date -Permit Expiration Date NC Hwy- 150 -• Terrell NC 28682 09.00 PM 10/06/07 10/04/3Q Name(s) of Onsite Representative(s)lrities(s)/Phone and Fax Number(s) Other Facility Data Donna Lee Burrell/ORC/828-,,478`7820/ Jin nie Allen 9towe//704-382-4309 / Name, Address of Responsible,Offiaal/Title/Phone and Fax Number Contacted Jimmie Al^Len Stowe"'26 S,Chruch St Charlotte NC 282011002//7041'-382-4309/704382984Q Yes ' Section,C' Ate -as Evaluated During Inspection (Check only those areas evaluated), Permit Flow Measurement Operations & Maintenance Records/Reports Self' Monitoring Program ■ Sludge Handling Disposal Facility Site Reyiew ® EflUent/Receiving Waters Laboratory Section D Summary of Findift /Comments Attach additional sheets of narrative and checklists as necessa (See'attachment summary) Name(s) and Signature(s) oPInspecI.. (s) Agency/Office/Phone and Fax Numbers Date / Wesley N Bell ��f �,G� MRO WQ//709-663-1699 Ext, 2192/ 7/ /te/! 0` Donna Hood' MRO WQ//704-663-1699 Ext 2193/ tSi nature"of Management Q A evl wer Agency/Office/Phone and Fax Numbers Date 'T u Marcia Allocco MRO WQ//704=663-1699 Ext 2204/ EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete Page # 1 NPDES yr/mo/day Inspection Type 3I NC0004987 I11 121 10/06/,07 117 18I S (cont ) 1 Section D Summary of Finding/Comments (Attach additional sheets olenarrative and checklists as necessary) SUMMARY SECTION cont'd The faclllty'has several stormwater outfalls that discharge directly Into waters of1the State Potential stormwater exposures (from raw materials, by-products, metal storage dumpsters, etc ) as a result of the facility's operations were observed The facility staff operate under a l Internal stormwater management program that Includes the, identification of all stormwater outfalls and their respective,dralnage areas The Division's Storm -water Pefmltting Unslt.has Indlcated,to MRO`staff that the facility will need to apply for coverage under an Individual stormwater permit FACILITY SITE REVIEW The Division Issued an ATC on 4/27/10 for'the Installation of vertical flow wetland ,(VFW) cells containing spent mushroom, compost for, the removal of selenium These VFW wetland cells will replace the existing wetland cells 1A„ 1 B, and 1 C These wetland cells (1A, 1 B, 1 C) have been taken off line and the vegetation from one,of,these wetland cells has already been removed The facility staff Indicated that the -vegetation would be composted and, placed back Into an on-line wetland cell(s) SLUDGE DISPOSAL Fly ash, clarifier sludge, spec and off spec gypsum, etc are disposed Into the permitted landfills located on-site The spec gypsum Is also reused'In the National Gypsum Company's manufacturing process Page # 2 Permit NC0004987 Owner --,Facility MarshaWSteam Station Inspection Date 06/07/2010 Inspection Type Compliance Sampling Permit Yes No NA NE (If the present permit expires in 6 months or less) Has the permittee submitted anew applications - e n n n Is the facility as descrnbediin the permits ■ n n n #,Are there any special conditionsJor the permits n n ■ n Is access to the plant site restricted to the general publics ■ n n n Is the inspector granted access'to all areas for inspection? ® n n n Comment The subject permit,eXpired on 4`/30/10 and a permit renewal application was received by the Division on 11/2/09 The facility is classified as a Physical/Chemical, I treatment system, however, the facility also uses a constructed Wetland, (biological) treatment�system for the, uptake/reduction of selenium The `Division's Technical Assistance & Certification Unit has been forwarded this information to determine if an,additional classification (Grade I Biological) is warranted The TACU staffwill,provide a decision following the review of the,facility's treatment system -See "Summary" for additional permitting comments Record Keeping Yes No NA NE 'Are records kept and maintamed;as required by the permit? _ ■ _ n. n o Is, -all required information'readily available,, complete and current? ■ 0 n n Are aWrecords maintained for 3 years (lab reg required 5 years)? ■ n n n Are analytical results consistent'witti data reported on DMRs? ■ n n n Is the chain -of -custody complete? n n n 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? ■ n n n Has,the,facdity submitted its annual compliance repoit to,users and DWQ? n n ■ n (If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified operator on each shift? n n ■ n Is the ORC visitation log available and current? ■ n n n Is, the ORC certified at grade equal to,or higher than the facility classification?, ■ ,n ,❑ 'n Is,the backup operator certified, at one grade less or greater than the facility classification? ■ n n n Is a copy of the current NPDES permit available on site? t n n n Page # 3 Effluent Sampling Yes No NA NE Is composite sampling flow proportional? n n ■ n Is sample collected below all treatment units? ■ n to n Is°proper volume collected? ■ n n n Is,the'tubing clean? n n ■ n # Is proper temperature set for sample storage (kept at less than or equal to 6 0 degrees Celsius)? n n ■ n Is the facility sampling performed as required by the permit (frequency, sampling type representative)? ■ n n n Comment The subject permit requires effluent grab samples Operations & Maintenance Yes No NA NE Is the,plant generally clean with acceptable housekeeping? ■ n n n Does the facility analyze process,control parameters, for ex MLSS, MCRT, Settleable Solids,,pH, DO, Sludge ■ n Q n Judge, and`other that are applicable? Comment The treatment system appeared to be properly operated and well' maintained No chlorine is:added to the once, through, codling water'(Outfa111001) The facility staff use.either Sodium hydroxide or CO2 for pH adjustment (as -needed basis) in the ash basin discharge (Outfall 002) Process control monitoring, Includes pH measurements at different treatment processes/units and in the receiving stream adjacent to Outfall 002 Page # 4 s Permit NC0004987 Owner - Facility Marshall Steam Station Inspection Date 06/07/2010 Inspection Type Compliance Sampling Record Keeping Yes No NA NE Facilit`y'has copy ofaprevious year's Annual Reporton file for review,? n n ■ n Comment The facility's records were organized and well maintained Discharge Monitoring Reports (DMRs) were reviewed for,the,penod April 09, through May,10 No effluent limit violations were reported and all monitoring frequencies were correct Laboratory Yes No NA NE Are field parameters performed by certified `personnel or laboratory? ■ n n n Are all other parameters(excluding field parameters) performed by a certified lab? ■ n n n # Is'the facility using a contract lab? ■, n n n # 4s proper,temperature set forsample,storage (kept at less than or equal'to 6 O,degrees Celsius)? ■ n n n Incubator (Fecal Coliform) set'to 44 5-degrees Celsius+/- 0 2 degrees? n .n ■ n Incubator (BOD) set to 20 0 degrees Celsius +/- 1 O degrees? 00 ■ 'n Comment. On-site field analyses'(pH and temperature) are performed under laboratory certification #5155 ,The Duke Power Analytical Laboratory (Certification #248) and the contracted services of ETS, Inc (Chronic Toxicity) also provide analytical support The,pH meter,appeared to be properly calibrated (an, d,documented) The thermocouples (temperature - Outfall 001) are also calibrated at a minimum of once per year (and documented) Effluent Sampling Yes No NA NE Is composite sampling flow proportional? n n ■ n Is sample collected below all treatment units? ■ n to n Is°proper volume collected? ■ n n n Is,the'tubing clean? n n ■ n # Is proper temperature set for sample storage (kept at less than or equal to 6 0 degrees Celsius)? n n ■ n Is the facility sampling performed as required by the permit (frequency, sampling type representative)? ■ n n n Comment The subject permit requires effluent grab samples Operations & Maintenance Yes No NA NE Is the,plant generally clean with acceptable housekeeping? ■ n n n Does the facility analyze process,control parameters, for ex MLSS, MCRT, Settleable Solids,,pH, DO, Sludge ■ n Q n Judge, and`other that are applicable? Comment The treatment system appeared to be properly operated and well' maintained No chlorine is:added to the once, through, codling water'(Outfa111001) The facility staff use.either Sodium hydroxide or CO2 for pH adjustment (as -needed basis) in the ash basin discharge (Outfall 002) Process control monitoring, Includes pH measurements at different treatment processes/units and in the receiving stream adjacent to Outfall 002 Page # 4 Effluent Pipe Yes No NA _NE Is right of way to -the outfall properly maintained? ■ n n n Are the receiving water free of foam other than trace lamounts,and other debris? ■' n n 'n If effluent (diffuser pipes are required) are they operating properly? n Q ■ n Page;# 5 Permit NC0004987 Owner - Facility Marshall Steam Station " Inspection Date 06/07/2010' Inspection Type Compliance Sampling Chemical Feed Yes No NA NE Is containment adequate? ■nnn Is storage adequate _ ■nn`n Are backup pumps available? ■ n n n Is the site free of excessive, leaking? ■ n n n, Comment Primary Clarifier Yes No NA NE Is the clarifier free of black and odorous wastewater,? n n' ■ n Is the site free of excessive buildup of solids in center well of circular clarifier? ■ n n n Are weirs level? ■ n n n Is,the site free of weir blockage? ■ n n n Is the site free of evidence ofshort-circuiting? ■ n n n Is scum removal' adequate? ■ n n n Is the site frmof excessive floating sludge? n .n ■ n Is the drive unit°operational? ■ n n n Is,the sludge blanket level acceptable? ■ ❑ 'n ,fl _ Is the sludge blanket level acceptable? (Approximately'/. of the sidewall depth) ■ n n n Comment A polymer (flocculant) is added prior to clarification to enhance-settling Flow Measurement - Effluent Yes ,No NA NE, # Is flow meter used for reporting? n n ■ n Is flow meter calibrated, annually? n n ,■ n Is the flow meter operational? n n ■ Cl (If units are separated) Does the chart recorder match the flow meter? n n ■ o Comment `Effluent,flows from Outfall 001 are measured by pump logs ('calculations InvolVing # of°pumps, pump,rates, pump run, times, etc) Outfall 002 flow Is measured by staff gauge and weir (with supporting calculations) and Outfall 004 flow is measured by an'ultrasonlc flow meter and flume Effluent Pipe Yes No NA _NE Is right of way to -the outfall properly maintained? ■ n n n Are the receiving water free of foam other than trace lamounts,and other debris? ■' n n 'n If effluent (diffuser pipes are required) are they operating properly? n Q ■ n Page;# 5 Permit .NC0004987 Owner - Facility Marshall Steam Station Inspection Date 06/07/2010 Inspection Type Compliance Sampling Effluent Pipe Yes No NA NE Comment Outfall 002 effluent appeared, clear with no floatable solid's or foam In addition, no floatable solids or foam were observed at Outfall 001 Pagel 6