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Home My WebLink AboutNC0027103_Biomonitoring Inspection_20081117November 17, 2008 Mr. McDuffie Cummings, Town Manager Town of Pembroke P.O. Box 866 Pembroke, NC 28372 ivwicnaei i , i.asiey Governor William G. Ross Jr., Secretary North.Carolina Department of Environment and Natural -Resources Coleen H. Sullins., Director Division of Water Quality Subject: COMPLIANCE BIOMONITORING INSPECTION Town of Pembroke Wastewater Treatment Plant NPDES Permit No. NC0027103 Robeson County Dear Mr. Cummings: Enclosed you will find a copy of the Compliance Biomonitoring Inspection report for the inspection conducted during the week of October 13, 2008. The inspection included the same objectives as that of a routine Compliance Evaluation Inspection plus an Aquatic Toxicity (AT) test to evaluate the biological effect of the facility's discharge on test organisms. As part of the inspection a tour of the Wastewater Treatment Plant was conducted. All observations . and recommendations are in Part D: Summary of Findings/Comments of this inspection report. The DWQ-Fayetteville Regional Office collected Outfall 001 effluent 24-hour composite samples on October 14 and October 17 use in a chronic Ceriodaphnia dubia pass/fail toxicity test. The samples were sent to the Division of Water Quality Aquatic Toxicology Laboratory, located on Reedy Creek Road in Raleigh. The aquatic toxicity analysis resulted in an "Invalid" due to >20% control organism mortality. Additionally,. on October 14, 2008 the above mentioned 24-hour composite was analyzed by the Division of Water Quality Chemistry Laboratory (located on Reedy Creek Road in Raleigh) for the following parameters (that are on the NPDES permit): Biochemical Oxygen Demand (BOD) = 2 mg/L, Total Suspended Solids (TSS) = 6.2 mg/L, Ammonia as nitrogen = .15 mg/L, Total Kjeldahl Nitrogen = 0.50 mg/L, Nitrite plus 'Nitrate as nitrogen 9.8 mg/L, and Total Phosphorus = 1.7 mg/L. This facility appeared to be well operated and well maintained. The June 2008 DMR had a very minor data transpose error: the correct TSS for June 17 was 3.0, not 2.0 as recorded on the DMR. As according to Part II, Section E, (8): "Where the peiuiittee...submitted incorrect information...in any report to the Director, it shall promptly submit such facts or information." An amended Discharger Monitoring Report should immediately be sent to the Division. The following procedure should be followed in submitting the corrected reports: A. All corrected data should be written in red ink or hi -lighted. B. At the top of the Effluent Page, the words "Corrected Report" or "Amended Report" should be written in red ink on all copies. This will differentiate between the originally submitted report and the corrected report. C. Two (2) copies of the corrected report should be submitted to this Division and one (1) copy must be retained by the permittee. North Carolina Division of Water Quality Internet: h2o.enr.state.nc.us An Equal Opportunity/Affirmative Action 225 Green Street — Suite 714 Fayetteville, NC 28301-5043 Phone (910) 433-3300 FAX (910) 486,0707 Employer — 50% Recycled/10% Post Consumer Paper None rth Carolina Naturally Customer Service 1-877-623-6748 Mr. Cummings November 17, 2008 Page 2 D. A brief explanation for the correction should be written either on the backside of the Effluent page or in a cover letter accompanying the reports. If you have any questions concerning this report or require clarification on part(s) of this report, please feel free to contact me at (910) 433-3312. Dale Lopez Environmental Specialist J /d1 cc: Rhonda Locklear,. Town of Pembroke, (ORC) FRO Files United States Environmental Protection Agency EPA 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 (Le., PCS) • Transaction Code NPDES • yr/mo/day Inspection 1 I NI 2 -I 51 31 NC0027103 111 • 121 08/10/13 117 Type Inspector Fac Type 18I gl • ' 19I SI 20I=I I•IIIIIIIIII66 Remarks 21IIIIIIIIIIIIIIIIIIIIIIIIIIII.IIIIIIII Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA Reserved 671 4.0 169 70 14 I 711 DI 72 I N I 731 11 74 751 I I I I I I 180 Section B: Facility Data Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include POTW name and NPDES permit Number) Pembroke WWTP NCSR 1339 Pembroke NC 28372 Entry Time/Date 11:00 AM 08/10/13 Permit Effective Date 04/09/01 Exit Time/Date 02:00 PM 08/10/13 Permit Expiration Date 09/07/31 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) /// Rhonda Hagan Locklear/ORC/910-521-2989/ Other Facility Data Name, Address of Responsible Official/Title/Phone and Fax Number McDuffiue Cummings,PO Box 866 Pembroke NC Contacted 283720866//910-521-9758/9105210472 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 i iaatrare(s) of Inspector(s) i Agency/Office/Phone and Fax Numbers N.' Dale Lopez ° A \ ', FRO WQ//910-433-3300 Ext.712/ Date /// 7 /4 3 Signature of Management Q Reviewer Agency/Office/Phone and Fax Numbers Date te�� IIii2/o9' EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. Page # 1 31 NPDES NC0027103 111 121 yrlmo/day 08/10/13 Inspection Type 17• 18IBI 1 Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) There were four or five locations under the grit chamberthat appear to have very small leaks, with one leak in particular that may need to be evaluated, because the concrete aggregate appeared to already be affected. In the future, a new electrical panel for the influent pump station will be located near the fence, a distance away from the influence of corrosive fumes of the influent wet well. This facility appears to be very well operated and very well maintained. Keep up the good work! Page # Permit: NC0027103 Owner - Facility: Pembroke WWTP Inspection Date: 10/13/2008 Inspection Type: Bioassay Compliance Operations & Maintenance Yes No NA NE Is the plant generally clean with acceptable housekeeping? • ❑ ❑ ❑ Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable Solids, pH, DO, Sludge ■ n n n 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? n n ■ n Is the facility as described in the permit? • ❑ ❑ ❑ # Are there any special conditions for the permit? • ❑ n ❑ Is access to the plant site restricted to the general public? Erin Is the inspector granted access to all areas for inspection? ■ ❑ [1 ❑ Comment: Record Keeping Yes No NA NE Are records kept and maintained as required by the permit? ■ n ❑ ❑ Is all required information readily available, complete and current? ■ ❑ 0 n Are all records maintained for 3 years (lab. reg., required 5 years)? ■ ❑ ❑ n Are analytical results consistent with data reported on DMRs? ■ ❑ n ❑ Is the chain -of -custody complete? • ❑ 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 COCs ilia Are DMRs complete: do they include all permit parameters? ■ ❑ rl Has the facility submitted its annual compliance report to users and DWQ? _❑ ❑ ❑11 (If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified operator on each shift? n ❑ O ❑ Is the ORC visitation log available and current? ■ ❑ ❑ ❑ Is the ORC certified at grade equal to or higher than the facility classification? ■ ❑ n ❑ 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? • n n ❑ Page # 3 Permit: NC0027103 Owner - Facility: Pembroke WWTP Inspection Date: 10/13/2008 Inspection Type: Bioassay Compliance Record Keeping Yes No NA NE Facility has copy of previous year's Annual Report on file for review? n n n Comment: A very minor data transpose error occurred on June 17, 2008. The correct TSS was 3 mg/L, not 2.0 mg/L as recorded on the DMR. Effluent Pipe Yes No NA NE Is right of way to the outfall properly maintained? ■ ❑ n 17 Are the receiving water free of foam other than trace amounts and other debris? n n n 17 If effluent (diffuser pipes are required) are they operating properly? ❑ n ❑ n Comment: Aerobic Digester Yes No NA NE Is the capacity adequate? ■ n n n Is the mixing adequate? • n n n Is the site free of excessive foaming in the tank? • n n n # Is the odor acceptable? • n n ❑ # Is tankage available for properly waste sludge? f• n n n Comment: Bar Screens Yes No NA NE Type of bar screen a.Manual • b.Mechanical • Are the bars adequately screening debris? • n n ❑ Is the screen free of excessive debris? - • ❑ n. n Is disposal of screening in compliance? • n n n Is the unit in good condition? ® ❑ n ❑ Comment: Grit Removal Yes No NA NE Type of grit removal a.Manual n b.Mechanical IN Is the grit free of excessive organic matter? ■ n n Is the grit free of excessive odor? • • n n n Page # 4 Permit: NC0027103 , Owner - Facility:. Pembroke WWTP Inspection Date: 10/13/2008 Inspection Type: Bioassay Compliance Grit Removal # Is disposal of grit in compliance? Comment: There are four or five locations under the grit chamber that appeared to have very small leaks, with one leak in particular that may need to be evaluated for repair in the future because the concrete aggregate appeared to •already be affected. Yes No' .: NA NE ■nnn 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? ■ n n ❑ Are weirs level? ■ . ❑ ❑ n Is the site free of weir blockage? • ❑ ❑ ❑ Is the site free of evidence'of short-circuiting? • n ❑ ❑ Is scum removal adequate? ■ n n Is the site free of excessive floating sludge? ■ n ❑ ❑ Is'the drive unit operational? ■ n ❑ Is the return rate acceptable (low turbulence)? ■ ❑ ❑ El Is the overflow clear of excessive solids/pin floc? n ❑ n Is the sludge blanket level acceptable? (Approximately'/ of the sidewall depth) ■ ❑ ❑ ❑ Comment: Oxidation Ditches Yes No NA NE 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? • ❑ 0 n Is the DO level acceptable? in • ❑ ❑ ❑ Are settleometer, results acceptable (> 30 minutes)? ■ n ❑ ❑ Is the DO level acceptab1e?(1.0 to 3.0 mg/I) ■ n ❑ ❑ Are settelometer results acceptab (400. to 800 ml/I in 30 minutes) ■ El n Comment: Disinfection -Gas Are cylinders secured adequately? Are cylinders protected from direct sunlight? Yes No NA NE ennn ■.n n n Page # 5 )Permit: NC0027103 Owner - Facility: Pembroke WWTP Inspection Date: 10/13/2008 Inspection Type: Bioassay Compliance Disinfection -Gas 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: 1 : 2 ratio of chlorine to dechlor. De -chlorination Type of system ? 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 the entire 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: Laboratory Are field parameters performed by certified personnel or laboratory? Yes No NA NE ■ nnn ■nnn ■ nnn ■ nnn ring El n 1-1 n Yes No NA NE Gas nn■n ■ nnn ■ nnn n n■n nn■n Yes No NA NE ■ nnn ■ nnn ■ nnn ■ nnn ® nnn rill El ■ nnn Yes No NA NE ■nnEl Page # 6 r Permit: NC0027103 Owner - Facility: Pembroke WWTP Inspection Date: 10/13/2008 Inspection Type: Bioassay Compliance Laboratory Are all other parameters(excluding 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: Effluent Sampling Is composite sampling flow proportional? Is sample collected below all treatment units? Is proper volume collected? Is the tubing clean? # 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 representative)? Comment: Flow Measurement - Influent # Is flow meterused 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: Calibrated on November 19, 2007. Yes No NA NE ■nnn ■ nnn ■ nnn nFins ■ nnn Yes No NA NE ■ nnn ■ nnn En n n ■ nnn ■ El n n Ennn Yes No NA NE Ennn ■ ring ■ nnn nnn■ Page # 7' Regional Field Inspectors Check List for Field Parameters Name of site to be Inspected: Pembroke Date: 10-13-0 Field certification # (if applicable): 552 NPDES #: NC0027103 Inspector: Region: FRO I. Circle the parameter or parameters performed at this site. Residual Chlorine , Settleable Solids, II. Instrumentation: pH DO , Conductivity, Temperature A. Does the facility have the equipment necessary to analyze field parameters as circled above? 1. A pH meter lAccumefXL25 2. A Residual Chlorine meter 3. DO meter HACH 550A 4. A Cone for settleable solids HACH DR2800 5. A thermometer or meter that measures temperature. HACH 550P 6. Conductivity meter III. Calibration/Analysis: 1. Is the pH meter calibrated with 2 buffers and checked with a third buffer each day of use? 2. For Total Residual Chlorine, is a check standard analyzed each day of use? 3. Is the air calibration of the DO meter performed each day of use? 4. For Settleable Solids, is 1 liter of sample settled for 1 hour? 5. Is the temperature measuring device calibrated annually against a certified thermometer? 02/28/08 6. For Conductivity, is a calibration standard analyzed each day of use? Yes NYes Yes No No No Yes No Yes No Yes No Yes fres Yes Yes Yes Yes No No No No No IV. Documentation: 1 : Is the date and time that the sample was collected documented? 2. Is the sample site documented? 3. Is the sample collector documented? 4."Is the. analysis date and time documented? 5. Did, the analyst sign 'the documentation? 6. Is record of calibration documented? 7. For Settleable Solids, is sample volume and 1 hour time settling time documented? 8. For Temperature, is the annual calibration of the measuring device documented? Comments: pH 4.0 exp date Feb 2010 pH 7.0 exp date Mar 2010, pH 10.0 exp date Apr 2009 NYes Yes Yes fres Yes Yes Yes No No No No No No Please submit a copy of this completed form to the Laboratory Certification Program. DWQ Lab Certification Chemistry Lab Courier.# 52-01-01 FIELD INSPECTOR CHECKLIST REV. 04/23/2002