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HomeMy WebLinkAboutNC0023353_Inspection_20010730North Carolina -Department of Environment and Natural Resources Division of Water Quality. Fayetteville Regional Office Michael F. Easley,. Governor William G. Ross, Jr.; Secretary • Kerr T.-Stevens, Director July 30, 2001 The Honorable Goldston Womble Mayor, Town of White Lake POBox7250 White. Lake, NC 28337 -SUBJECT: Compliance Evaluation Inspection Town of White Lake Wastewater Treatment Plant NPDES Permit No. NC0023353 Bladen County :Dear Mr. Womble: ern 16'14 NCDENR. Enclosed is a copy of the Compliance Evaluation Inspection conducted July 20, 2001. During the inspection a tour of the Wastewater Treatment Plant was conducted. While discussing effluentSamplecollection, it was discovered that the facility does riot collect composite samples for the required parameters in the NPDES permit. Please begin effluent composite sampling within 90 days of receiving this report. All other observations and recommendations from the inspection are in Part D. Summary of Findings/Comments of this. inspection report. The cooperation of Mr. Bill Stafford, Grade II ORC was appreciated. As a reminder preservation of the Waters of the State can only be acquired through consistent NPDES permit compliance. Please review the attached report. If you or your staff haveany questions do not hesitate to contact the at 910-486-1541. Sincerely46/00-0 Belinda S. Henson Environmental Chemist /bsh Enclosures cc: Central Files FRO Files 225 GREEN STREET- SUITE 714 / SYSTEL BUILDING / FAYETTEVILLE, NC 28301-5043 PHONE (910) 486-1541 FAX (910) 486-0707 WWW.ENR.STATE.NC.USIENR/ AN EQUAL OPPORTUNITY /.AFFIRMATIVE ACTION EMPLOYER- 50% RECYCLED/10% POST CONSUMER PAPER DENR TOLL FREE HOTLINE: 1-877-623-6748 NPDES COMPLIANCE INSPECTION REPORT North Carolina Division of Water Quality Fayetteville Regional Office Section A. National Data System Coding Transaction Code: N NPDES NO. NC0023353 Date: 010720 Inspection Type: C Inspector: S Facility Type: 1 Reserved: Facility Evaluation Rating: 4 BI: N QA: N Reserved: Section B: Facility Data Name and Location of Facility Inspected: Town of White Lake WWTP Entry Time: 10:05am Permit Effective Date: 001101 Exit Time/Date: 1:30pm/010720 Permit Expiration Date: 011031 Name(s), Title(s) of On -Site Representative(s): Bill Stafford (Certified Grade II) - "ORC" Tim Frush - "Public Works Director" Phone Number(s): (910)862-4800 Name, Title and Address of Responsible Official: Mr: Goldston Womble, Mayor PO Box 7250 White Lake, NC 28337 Section Ct Areas Evaluated During Inspection • Contacted: no (S = Satisfactory, M = Marginal, U = Unsatisfactory, N = Not Evaluated, N/A = Not Applicable) e>xevie cor:.us eoores [ea°suremen e orato 0111 '•re <:Effl'etlROevng<VW nap tmom: :c en .. &:IYlam &tan Is Page 3 July 30, 2001 Womble Section D: Summary of Findings/Comments: 1. The automatic bar screen was operational. It operates by a float system and when the flow reaches a certain height it operates automatically. A manual bar screen is also in place to utilize when necessary. All screenings are disposed of in the county landfill. 2. The grit removal system appeared to be operational with all grit disposed in the county landfill. . 3. A backup generator is on site to provide electricity to the WWTP should an extended power outage occur. A weekly operational schedule should be implemented to ensure the generator will be operational in times of need. 4. Barley hay had been placed in the lagoon a few months ago to assist in natural algae control in the lagoon. Based on studies, chemicals released by the decomposing barley kills or inhibits the growth of the algae. On the day of the inspection, the clarity of the lagoon appeared to be good with little algae growth. 5. The multicellular aerated lagoon appeared to be operational. Various areas in the lagoon had alligator weed in it. The weed should be removed to assist with adequate treatment of the wastewater. The facility is presently not adding Sonar to the influent for. duckweed control. Some (not excessive) duckweed appeared in the lagoon. The curtain in cell #4 had been stabilized on the designated posts as recommended in the inspection report dated August 28.2000. All six aerators were operational. Three (3) are located in cell #1, two (2) in cell #2 and one (1) in the final cell #4. 6. The chlorine contact tank appeared to be clean. There did not appear to be any turtles located in the tank. The facility staff continues to use a net to remove creatures out daily to eliminate possible NPDES permit violations. The facility continues to utilize a water sprinlder system at the discharge outlet to assist with elimination of foam. The foam did not appear to be excessive. Chlorine is added for chlorination and sulfur dioxide is added for dechlorination of the effluent. Approximately 20-40 pounds of chlorine is added per day. 7. The effluent appeared to be free of solids with a slight amount of amber color which is natural for this effluent with the tannic acid release from tree roots in the area. The effluent discharges into Colly Swamp. • 8. The effluent flow meter is a Milltronics OCM III which has been installed since the last inspection. The flow meter is wired through to a flow chart device which records the flows on a flow chart. The flow meter was calibrated October 18, 2000 as per the sticker found on it. Records confirming the calibration were not found during the inspection. Please be advised that all flow calibration records should be on site as part of records retention as stated in the NPDES permit Part II. Section D. 6. Records Retention. It is advisable that the flow meter calibration document contain the % error of the correct flow before and after calibration. 9. The `Backup Operator" for this facility is Oliver Worthington, a Grade II operator who is not employed by the Town. Page 4 July30, 2001 Womble 10. The following NPDES permit parameters are analyzed on site: pH, Temperature, Dissolved Oxygen and Total Chlorine Residual (TRC). The facility analyzes for the Chlorine parameter with a La Motte 1200. During the inspection it was discovered that the facility was analyzing for Free Chlorine verses Total Residual Chlorine. All wastewater samples should be analyzed for Total Residual Chlorine as per your NPDES permit. The other NPDES permitrequired parameters are analyzed by "Environment 1" laboratory located in Greenville. 11. Laboratory records for the months September through November 2000 were reviewed and compared to Discharge Monitoring Reports (DMRs). All records reviewed appeared to be correctly reported. 12. A compliance evaluation analysis report for the period June 2000 through May 2001 did not reveal any NPDES permit monthly violation for the period. 13. Maintenance records were on site. Please respond in writing to our office concerning the composite sampling requirement and items 8 and P by SEPTEMBER 1., 2001. 124)144 Name and Signature of Inspector Belincj S. Henson, r�� tti %6t . ` % t'w-e - Name and Signature of Reviewer Grady Dobson Action Taken Agency/Office/Telephone Date DENR/F ayetteville/(9 1 0)4 8 6-15 4 1 Agency/Office/Telephone Date DENR/Fayetteville/(9 10)486-1541 Regulatory Office Use Only Compliance Status Noncompliance Compliance Date Section Ds Summary of Findings/Comments Brief Facility Description: Consisting of a 4.4 acre aerated lagoon, a multicellular facultative lagoon, automatic bar screen_ grit removal system, chlorine contact tank, effluent flow meter and chlorination/dechlorination system. FACILITY SITE REVIEW es o N/A 1. Treatment units properly operated and maintained. o N/A 2. Standby power or other equivalent provision provided. Yes No N/A . 3. Adequate alarm system for power or equipment failure available. 4. Yes .No Yes No Sludge disposal procedures appropriate: a. Disposal of sludge according to regulations b. State approval for sludge disposal received. Yes No %A 5. Sufficient sludge disposed of to maintain treatment process 'equilibrium. No N/A 6. The ORC and Backup Operator are officially designated with NCDENR/DWQ Training and Certification Unit. Yes No N/A 7. Adequate spare parts and supplies inventory maintained. Es)No N/A 8. Plant has general safety structures such as rails around or covers over tanks, pits, or wells. es o N/A 9. Plant is generally clean, free from open trash areas. 10. Screening: Ees No N/A a. Manual e No N/A b. Mechanical Yes VAN/A c. Buildup of debris No N/A d. Screenings properly disposed of. Yes Yes 11. Grit Removal: N/A a. Excessive organic content in the grit chamber N/A b. Excessive odors Page 2 1 Yes No�N/A) Yes No N/A Yes No N/A Yes No N/A Yes No N/A Yes. No N/A Yes No N/A Yes No NIA Yes No N/A Yes No N/A Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Now/A No N/A No N/A No N/A No N/A No N/A No N/A No N/A No ;N/� No N/A No N/A No N/A No N/A No N/A No N/A Primary clarifier: a. Excessive gas bubbles b. Black and odorous wastewater c: Poor suspended solids removed d. Excessive buildup of solids in center well of circular clarifier e. Weirs level f. Weir blockage g. Evidence of short circuiting h. Lack of adequate scum removal .Excessive floating sludge j. Broken sludge scraper. 13. Trickling Filter: a. Trickling filter ponding(indicating clogged media). b. Leak at center column of trickling filter's distribution arms Uneven distribution of flow on trickling filter surface Uneven or discolored growth Excessive sloughing of growth Odor Clogging of trickling filter's distribution arm orifices Filter flies, worms, or snails. 14. 15. NoN/A0 No N/A No N/A No N/A c. d. e: f. •g. h. Activated Sludge Basins/Oxidation Ditches: a. Dead spots b. Failure of surface aerators c. Air rising in clumps d. Dark foam or bad.color e. Thick billows of white, sudsy foam f. Air rising unevenly g. Excessive air leaks in compressed air piping. Stabilization Ponds/Lagoons: a. Excessive weeds including duckweed in stabilization ponds b. Dead fish or aquatic organisms : c. Buildup of solids around influent pipe d. Excessive scum on surface. • Page 3 Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes No No No No No No No No No No No No No No No No N/A.l N/A N/A N/A N/A N/A N/A N/A N/A N/A RUB N/A N/A N/A N/A N/A Yes (N) N/A Yes N/A Yes TNo) N/A Yes No N/A Yes No N/A (r No N/A (yap No N/A (Yes) No N/A Yes No (Yes` No N/A (Yes No N/A .=Yes No N/A Yes Yes Yes Yes 16. Secondary Clarifier: a. Excessive gas bubbles on surface b. Level overflow weirs c. Weir blockage d. Evidence of short circuiting e. Excessive buildup of solids in center well of circular clarifier f. Pin floc in overflow g. Effective scum rake h. Floating sludge on surface i. Excessive high sludge blanket j. Clogged sludge withdrawal ports on secondary clarifier. 17. Filtration: a. Filter surface clogging b. Short filter run c. Gravel displacement of filter media d.. Loss of filter media during backviashing e. Recycled filter backwash water in excess of 5 percent f. Formation of mudballs in filter media. 1 Chlorination -Unit: a. Sludge buildup in contact chamber b. Gas bubbles c. Floating scum and/or solids d. Adequate ventilation of chlorine feeding room and storage area e. NIOSH-approved 30 minute air pack f. All standing chlorine cylinders chained in place g. All personnel trained in the use of chlorine h. Proper chlorine feed, storage, and reserve supply. 19. Ultraviolet radiation disinfection present and in use. 20. Dechiorination: a. Proper storage of sulfur dioxide cylinders b. Adequate ventilation of sulfur dioxide feeding room c. Automatic sulfur dioxide feed or feedback control operating properly. 21. No (IPA) No N/A No N/A No N/A Aerobic Digester: a. Excessive foaming in tank b. Noxious odor c. Mechanical aeration failure d. Clogging of diffusers. Page 4 Yes No gik Yes No N/A Yes Yes Yes Yes Yes Yes Yes 22. Anaerobic Digester: a. Floating cover tilting b. Gas burner operative 23. Sludge Drying and/or disposal: No �/) a. Poor sludge distribution on drying beds No N/A b. Vegetation in drying beds No N/A c. Dry sludge remaining in drying beds No N/A d. Dry sludge stored on site No N/A e. Filtrate from sludge drying beds returned to front of plant No N/A f. Sludge disposal through county landfill. No • N/A g. Sludge land applied. Yes No OW Yes No N/A Yes No ' N/A Yes No N/A Yes No . N/A Yes No N/A Yes NO) N/A Yes �No� N/A (Ye� No N/A (WO No N/A (Pei) No N/A Yes (off N/A Yes `No) N/A Yes (t N/A Yes(go) N/A Yes No N/A 24. Filter Press: a. High level of solids in filtrate from filter presses or vacuum filters b. Thin filter cake caused by poor dewatering c. Sludge buildup on belts and/or rollers of filter press d. Excessive moisture in belt filter press sludge cake. 25. Polishing Ponds or Tanks: - a. Objectionableodor, excessive foam, floating solids, or oil sheens on water surface b. Solids or scum accumulations in tank or at side of pond c. Evidence of bypassed polishing ponds or tanks because of low capacity. 26. Plant Effluent: a. Excessive suspended solids, turbidity, foam, grease, scum, color, and other macroscopic particulate matter present b. Potential toxicity (dead fish, dead plant at discharge) c. Outfall discharge line easily accessible. 27. Flow Measurement: a. Proper placement of flow measurement device b. Flow meter calibrated c. Buildup of solids in flume or weir d. Broken or cracked flume or weir e. Clogged or broken stilling wells. f. Weir plate edge corroded or damaged g. Flow measurement error less than 10%. Page 5 YeS) No N/A Yes No N/A ryes No N/A Yes (.No) N/A 28. Sampling: a. Sampling and analysis completed on parameters specified by permit b. Composite sample temperatures maintained at 4 degrees Celsius or less (but above freezing) during sampling c. Contract laboratory used for sample analysis d. Effluent composite samples obtained are flow proportional. (YeTs) No N/A (N�� No N/A . Yes No (-N/t) -Yes' No N/A �Yes� No N/A ;`Yew No N/A • `Yes No N/A • -Yes No N/A - C.Yes' No N/A Yes No N/A Nes) No N/A Yes No N/A Yes No N/A Yes No N/A • V'es) No N/A RECORDKEEPING AND REPORTING 1. Records and reports maintained as required by permit. 2. All required information available, complete, and current. 3. Records maintained for 3 years and all sludge records maintained for 5 years. 4. Analytical results consistent with data reported on DMRs. . 5. Sampling and analyses data adequate and include: a. Dates, times, and location of sampling b. Name of individual performing sampling c. Results of analyses and calibration d. Dates of analyses e. Name of person performing analyses. 6. Monitoring records adequate and include: a. _ Monitoring charts kept for 3 years b. Flowmeter calibration records kept for 3 years. 7. The pH meter is calibrated daily with two buffers and checked with a third buffer and properly documented. 8. Expiration dates of pH buffers adequate. 9. • All thermometers used in NPDES permit reporting is calibrated annually with an NIST certified thermometer or a traceable thermometer annually and documented. 10. The following NPDES permit required parameters are analyzed on site: pH, Temperature, Dissolved Oxygen and Chlorine Residual. Page 6 Yes No N/A Yes No rN/A, . Yes. No N/A) ' 13. Yes No N/A Yes No N/A Yes No N/A Yes No N/A Yes No A es ' No N/A Yes No N/ Yes No N/A :18. (Yes) No .N/A ryes) No N/A Yes No N/A No N/A 11. The NPDES permit required parameter Total Chlorine Residual is. analyzed by approved method: 12. BOD incubator temperature maintained at 20 +/- 1 Degrees Celsius and the temperature maintained in a log for every day of operation,' Fecal coliform incubator maintained at 44.5 +/- 0.2 Degree Celsius and the temperature maintained in a log for every day of operation. 14: Plant records adequate and include: a. 0 & M Manual b. "As -built" engineering drawings c. Schedules and dates of equipment maintenance repairs d. Equipment data cards.• 15. Permittee is meeting compliance schedule. 16. DMRs complete and include all NPDES permit required parameters. 17. The•facility has a permitted flow greater than 5 MGD and is required to operate seven days per week 24 hours a day. ORC visitation logs available and current. 19. ORC certified at a level equal to or greater than the classification of the wastewater facility. 20. " Backup Operator certified at one level less than the classification of the wastewater facility or greater. 21. Current copy of the complete NPDES permit on site. 22. Facility description verified as contained in NPDES permit. Yes <06:.N/A 23. Yes No (N/A) 24. Revised 7/16/01. by Belinda Henson Facility analyzes process control parameters for example: MLSS, MCRT, Settleable Solids and others that are applicable. Industrial Waste Surveys (IWS) sent to all possible Significant Industrial Users (SIUs) within the last five years (especially new industries). INSPECTION REPORT UPDATE OPTION: TRX: 5IF KEY: NC0023353INSCEI 010720 SYSMSG: *** DATA ADDED SUCCESSFULLY * * * PERMIT--- NC0023353 REG/COUNTY-- 06 BLADEN FACILITY-- WHITE LAKE, TOWN / WWTP LOC-- WHITE LAKE INS TYPE CEI NEXT PLANNED INSPECTION INSPECTED BY: DATE : 010720HSB REPORT- INSPECTION -DMR RESPONSE RECEIVED DATE STATUS STATUS DUE DATE. DATE 010730 C C 010901 COMMENTS: RESPONSE FOR EFFLUENT COMPOSITE SAMPLING AND ITEMS 8 AND 10.