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HomeMy WebLinkAboutHISTORICAL BEFORE 2001• NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WATER QUALITY FAYETTEVILLE REGIONAL. OFFICE August 28, 2000 The Honorable Goldston Womble Mayor, Town of White Lake PO Box 7250 White Lake, NC 28337 SUBJECT: Compliance Evaluation Inspection Town of White Lake Wastewater Treatment Plant NPDES Permit No. NC0023353 Bladen County Dear Mr. Womble: Enclosed is a copy of the Compliance Evaluation Inspection conducted August 21, 2000 by Don Register and myself. During the inspection a tour of the Wastewater Treatment Plant was conducted. The observations and recommendations from the inspection are in Part D. Summary of Findings/Comments of this inspection report. The objective we should all be striving for is NPDES permit compliance which in turn will provide preservation of our receiving stream for generations to come. Please review the attached report. If you or your staff have any questions do not hesitate to contact me at 910-486-1541. Sincerely, Belinda S. Henson Environmental Chemist /bsh Enclosures MENCIEMIEM 225 GREEN STREET, SUITE 714 / SYSTEL BLD. FAYETTEVILLE, NORTH CAROLINA 28301-5043 PHONE 910-486-1541 FAX 910-486-0707 AN EQUAL OPPORTUNITY / AFFIRMATIVE ACTION EMPLOYER - 50% RECYCLED/10% POST -CONSUMER PAPER 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: 000821 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: 10:15am Permit Effective Date: 960101 Exit Time/Date: 1:00pm/000821 Permit Expiration Date: 001231 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 C: Areas Evaluated During Inspection (S = Satisfactory, M = Marginal, U = Unsatisfactory, N = Not Evaluated, N/A = Not Applicable) Contacted: no r cords ono Cl to 17i o *<measuremen ra '<ff uient/It ecevm rea e OUP Mil puance:; er.:atxo ei alp mart Section D: Summary of Findings/Comments: 1. The newly installed bar screen and grit removal system appeared to be operational. Screenings and grit are disposed of through the county landfill. 2. Backup power (generator) is on site to power the plant when necessary. 3. Barley hay had been placed in the lagoon 3 - 4 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. 4. The multicellular aerated lagoon appeared to be operational. The edges of the lagoon appeared to have some alligator weed growing in it and at the end of the influent pipe. The weed should be removed to assist with adequate treatment of the wastewater. Sonar is being added at six (6) ounces/day at the headworks of the plant to remove duckweed. It has been added for the past two (2) weeks. Some (not excessive) duckweed appeared in cell #2 and #4. New cables had been added to the aerators to assist with stability. In the last cell #4 the curtain appeared to be broken away from the designated posts. The curtain should be stabilized to continue with proper treatment by containment. S. The chlorine contact tank appeared to be clean. There appeared to be a few turtles swimming in the chlorine contact tank. The facility staff use a net to dip these creatures out daily to eliminate possible NPDES permit fecal coliform violations. The facility had a water sprinlder system at the discharge outlet to assist with elimination of foam. The foam appeared to be very minute. The foam was noted in the last inspection report dated December 7,1999. Chlorine and sulfur dioxide are added for chlorination and dechlorinationof the effluent. 6. 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. 7. The grounds surrounding the lagoon appeared to have some paper products on it. The paper products should be removed to provide maintenance of the facility. 8. The effluent flow meter was calibrated July 17, 2000 by "Conetecs Incorporated". A flow calibration document from Conetecs had not been received by the facility. 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 following NPDES permit parameters are analyzed on site: pH, Temperature, Dissolved Oxygen and Chlorine Residual. An approved method for chlorine residual analysis has been utilized as requested in the last inspection report dated.December 7,1999, for NPDES •reporting. The other NPDES permit required parameters are analyzed by "Environment 1" laboratory. 10. Laboratory records for July 1999, November 1999, December 1999, January 2000 and February 2000 were reviewed and compared to Discharge Monitoring Reports (DMRs). All records reviewed appeared to be correctly reported. 11. A compliance evaluation analysis report for the period July 1999 through June 2000 revealed.a NPDES permit monthly violation for BOD,in the month of July 1999. -continued- 12. The following Notice of Violation was sent for the month October 1999 for a weekly average exceeding the parameter Fecal Coliform. 13. As a reminder maintenance records should be on site as part of the operation and maintenance of the facility to maintain the NPDES permit requirements. - Name and. Signature of Inspectors Agency/Office/Telephone Date Belinda S. Henson ` . et o4'/ M ) DENR/Fayetteville/(910)486-1541 Don RegisterAl , Name and Signature of Reviewer Action Taken Agency/Office/Telephone DENR/Fayetteville/(910)486-1541 Regulatory Office Use Only Compliance Status Noncompliance _Compliance 45/----f Date Date Section D: Summary of Findings/Comments Brief Facility Description: White Lake WWTP consists of a automatic bar screen, grit removal system. 4.4 acre aerated lagoon. a multicellular facultative lagoon. and chlorination/dechlorination. Yes,) No N/A " Yes No N/A • Yes o N/A,. Yes No(Brit Yes No N/A es No N/A Yes No No N/A Yes No N/A Ye~ No N/A Yes No N/A -Yes No N/A Yes No N/A ,Yes. O N/A FACILITY SITE REVIEW Treatment units properlyoperated and maintained. 2. Standby power or other equivalent provision provided.. 3. Adequate alarm system for -power or; equipment failure 'available. 4. Sludge disposal procedures appropriate: a. Disposal of sludge according to regulations b. State approval for sludge disposal received. All treatment units other than backup units in service. 6. Sufficient sludge disposed of to maintain treatment process equilibrium. 7. Adequate number of qualified operators on staff 8. Established procedures available for training new employees: 9. Adequate spare parts and supplies inventory maintained.. 10. -a. Hydraulic overflows and/or' organic overloads experienced - b. Untreated bypass discharge occurs during power failure. c. Untreated overflows occurred sincelast inspection:: 11. Plant has general safety structures such as rails around or covers over tanks, pits; or wells. Yes)- No N/A 12. Plant is generally clean, free from open trash areas. 13. Screening: No N/A a. .Manual No N/A . b. Mechanical N/A c. Buildupof debris No N/A d. Screenings properly disposed of. 14. Grit Removal: Yes (Nla N/A a. Excessive organic content in the grit chamber Yes. N/A b. Excessive odors No. N/A c. Grit properly disposed of. Yes No 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 N/A Yes No N/A Yes No (/I, 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 Yes No N/A Yes No N/A Yes No N/A Yes No N/A 1 Page 2 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 I. Excessive floating sludge j. Broken sludge scraper. 16. Trickling. Filter: a. Trickling filter ponding(indicating clogged media) b. Leak at center column of trickling filter's distribution arms c. Uneven distribution,of flow on trickling filter surface d. Uneven or discolored growth e. Excessive sloughing of growth f Odor g. Clogging of trickling filter's distribution arm orifices h. Filter flies, worms, or snails. 17. Rotating Biological Contactors (RBC): a. Development of white biomass on rotating biological contactor media b. Excessive sloughing of growth c. Excessive breakage of rotating disks or shafts in RBC units d. Excessive breakage of paddles on brush aerators e. Shaft, bearing, drive gear, or motor failure on disk or brush aerators. Yes Yes Yes Yes Yes Yes Yes No No N/A No N/A No N/A No N/A No N/A No N/A Yes c N/A Yes o N/A es No N/A Yes. N/A Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes No BJ No N/A No N/A No N/A No N/A No N/A No N/A No N/A No N/A No N/A Yes No CNN 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 fi�o N/A Yes �Njo N/A Yei No N/A Yes N/A Yes No C7A9 No N/A /es� No N/A Page 3 18. 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. 19. Stabilization Ponds/Lagoons: a. Excessive weeds including duckweed in stabilization ponds So vn e eg_ I / b. Dead fish or aquatic organisms #'Z # c. Buildup of solids around influent pipe d. Excessive scum on surface. 20. Secondary Clarifier: Excessive gas bubbles on surface Unlevel overflow weirs Weir blockage Evidence of short circuiting Excessive buildup of solids in center well of circular clarifier Pin floc in overflow Ineffective scum rake Floating sludge on surface Excessive high sludge blanket Clogged sludge withdrawal ports on secondary clarifier. a. b. c. d. e. f. g- h. i. J. 21. Filtration: Filter surface clogging Short filter run Gravel displacement of filter media Loss of filter media during backwashing Recycled filter backwash water in excess of 5 percent Formation of mudballs in filter media. a. b. c. d. e. f. 22. 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 <<e cefamen± 44Ke3 Care o� f. All standing chlorine cylinders chained in place is -ea I b. car i, note r g. All personnel trained in the use of chlorine h. Proper chlorine feed, storage, and reserve supply. • Page 4 Yes ' No : T/A 23. Ultraviolet radiation disinfection present and in use. • 24: Dechlorination:' No N/A a., Proper storage. of sulfur dioxide cylinders No N/A b: Adequate ventilation of sulfur dioxide feeding room Yes N/A. -c. Automatic sulfur dioxide feed or feedback -control not operating Yes No Nik Yes No N/A ' Yes No ;:N/A Yes No 'N/A properly. 25. Aerobic Digester:., a., . Excessive`foaming, in tank b. Noxious odor c. Mechanical aeration failure d. Clogging of diffusers. 26. lAnaerobic Digester: Yes No a. • Floating 'cover tilting: Yes No:. N/A b. Gas burner operative Yes No N/A c. Supernatant hag a sour odor. 27. Sludge Drying and/or disposal: Yes No B a. Poor sludge distribution on drying beds . Yes No N/A b. Vegetation in drying beds Yes No N/A " c. Dry sludge remaining in drying beds Yes No - N/A d. Dry .shidge stored on site Yes No N/A e. Filtrate from sludge drying beds returned to front of plant Yes No N/A f...Approved disposal site for the sludge Yes No , N/A g. Sludge ,land applied. ' 28.. Filter Press: -Yes No a. High level of solids in from filter presses. or vacuum filters Yes No N/A - b: Thinfiltercake caused by poor dewatering Yes No N/A ° c. Sludge buildup on belts and/or rollers of filter press Yes No 'N/A d. Excessive moisture in belt filter press sludge cake. 29. Polishing Ponds or Tanks: Yes ,No (MN a, Objectionable odor, excessive foam, floating sohds, or oil sheens on water surface Yes No . N/A b. Solids or scum accumulations in tank or at side of pond Yes No N/A c. Evidence of bypassed polishing ponds or tanks because of low , capacity. Page 5 30. Plant Effluent: - Yes o N/A a. Excessive suspended solids, turbidity, foam, grease, scum, color, and other macroscopic particulate matter present Yes N/A b. Potential toxicity (dead fish, dead plant at discharge)- - Yes [ N/A c. Outfall discharge line easily accessible. - J 31. Flow Measurement: Cire3, No N/A . a.' ' Proper placement of flow measurement device e - No N/A b. Flow meter calibrated Yes 'N/A ' , c. ' Buildup ' of solids in flume or weir Yes CIRO N/A d. Broken or cracked flume or weir Yes No 0/SM> . e. Properly functioning magnetic flowmeter Yes No CN/& - - _ £ Clogged- or broken stilling wells Yes (moo) N/A g:: Weir plate edge corroded or damaged She No N/A . h. System capable of measuring maximum flow Yes No N/A i. ` -Flow measurement error less than 10%. No N/A es No N/A No N/A (s No N/A Yes .dgco N/A 32. '. , Sampling: a. Sampling and analysis completed on parametersspecified by permit b. Samples refrigerated during compositing C. Composite sample temperatures maintained at 0 to 4 degrees Celsius during sampling d. ' Contract laboratory used for sample analysis e. Composite samples obtained are flow proportional. RECORDKEEPING AND REPORTING No N/A 1. .Records and reports maintained as required by permit. es No N/A . 2. All required: information available, complete, and current. - ' es+ No N/A 3. Records maintained for 3 years and all ' sludge records maintained for 5 - years. a , es No N/A . 4. Analytical results consistent with data reported on DMRs. 5. Sampling and analyses data adequate and include: TO, No N/A a. Dates, times, and location of sampling I'es) No , N/A b. Name of individual performing sampling es No N/A c. Results of analyses and calibration No N/A d. ' Dates of analyses Ti No N/A e. Name of person performing analyses. •Yes No N/A. Yes No N/A No N/A. Yes No Yes No /A Page 6 6. Monitoring records adequate and include: a. Monitoring charts kept for 3 years b. Flowmeter calibration records kept for 3 years. 7. Laboratory equipment calibration and maintenance records adequate. 8. BOD incubator temperature,maintained at 20 +/- 1 Degrees Celsius and the temperature maintained in a log for every day of operation. 9. Fecal coliform incubator maintained at 44.5 +/- 0.2 Degrees • Celsius and the temperature maintained in a log for every day of operation. 10. Plant records adequate and include: (Xe) No N/A a. 0 & M Manual• Yes. (R:)• N/A b. "As -built" engineering drawings ' Yes (Sp) N/A c. Schedules and dates of equipment maintenance repairs - Yes No (gN - d. Equipment data cards. Yes No dZki 11. Permittee is meeting compliance schedule. No •N/A 12. DMRs complete and include all NPDES permit required parameters. Yes No N/A 13. ORC visitation logs available and 'current. No N/A . 14. ORC certified at a level equal to or greater than the classification of the wastewater facility. No N/A ' 15. Backup Operator Certified at one level less than the classification of the wastewater facility or greater. No N/A 16. Current copyOfthe Coniplete NPDES permit on site. No N/A 17. Facility description verified as contained in NPDES permit. Revised 7/11/00 by Belinda Henson • INSPECTION REPORT UPDATE OPTION: TRX: 5IF KEY: NC0023353INSCEI .000821 SYSMSG: *** DATA ADDED SUCCESSFULLY *** PERMIT--- NC0023353 REG/COUNTY-- 06 BLADEN FACILITY-- WHITE LAKE WWTP, TOWN OF. LOC-- WHITE LAKE INS TYPE CEI NEXT, PLANNED INSPECTION INSPECTED BY: DATE: 000821 'HSB REPORT INSPECTION DMR .RESPONSE RECEIVED DATE . STATUS STATUS DUE DATE DATE 000828 C C COMMENTS: May 12, 2000 Mr. Paul Rawls Water Quality Division NC DENR 225 Green St - Suite 714 Fayettevil ie, NC 28301 Dear Mr. Rawls: MAYOR: H. Goldston Womble, Jr. COMMISSIONERS: Thomas E. Riel Timothy-G. Blount E. Donald Smith, Jr. R. Jefferson Corbett Tracey S. Trivett Kathryn C. Nye SCE VE NY 1 6 2000 FAYETTEVILLE REG. OFFICE The Town of White Lake request that NC DENR Water Quality Section assist the Town in a Pilot Program to survey and reduce algae bloom in wastewater treatment lagoons. Your assistance is much needed. Please notify Tim -Fresh if and when you are in agreement with this project and would like'totzirt:"Telephone 910-862-4800 or FAX 910-862-8686. File: VJ&Sdepi/lagoon/05I200 Sincerely, :),020,4(.., gft44Z Timothy F. Fresh Public Works Director P.O. Box 7250 White Lake, NC 28337-7250 Phone (910) 862-4800 Fax (910) 862-8686 ILL HO .MAN'" ECRETARY NORTH . CAROLINA DEPARTMENT '.OF ' ENVIRONMENT AND NATURAL RESOU,RGES May 17, 2000 . Mr.. Timothy F. Frush Public Works Director .. Town of White Lake P.O. Box 7250 White Lake, N.C, 28337-7250 DIVISION OF WATER QUALITY FAYETTEVILLE REGIONAL_ OFFICE This office is in receipt of your letter requesting"assistance in -,a pilot program to survey and reduce algae bloom in the.Town's wastewater treatriient lagoons: ThiS regional office, along with our technical assistance and training group, is always. receptive to assisting in anyway possible: Before we -make such a commitment, ewe ,are requesting a detailed plan -of action from the Town'sengineer and the anticipated length of,time this project should take. The plan should detail at a minimum, but not necessarily limited to the, following: • (a) . The proposed activities of each component of the plan. , (b) .The length of time for each, component of the study, .(c) The potential to cause effluent violations. (d) The,method by which the Town will measure the success of each component: We look forward to receiving your reply: Sincerely, Don Register Environmental Technician cc: Dwight Lancaster, DWQ Technical' Assistance and Certification Shannon Langley; N'.P.D.E.S. Compliance H C ! c N_ o-L 5 225 GREEN STREET, SUITE 714J SYSTEL SLD. FAYETTEVILLE,.NORTH CAROLINA 28301-5043 • PHONE 910-486-1541 FAX'910-486-0707 'AN EQUAL OPPORTUNITY / AFFIRMATIVE ACTION EMPLOYER - 50%,-RECYCLED/1.O% POST -CONSUMER PAPER RECEI ED APR 1 1'2000 FREG. April 10, 2000 Ms. Belinda Hinson Environmental Chemist Dept. of DENR 225 Green St., Suite 714 Fayetteville, NC 28301-5043 Re: Sludge Depths Dear Ms. Hinson: MAYOR: H. Goldston Womble, Jr. COMMISSIONERS: Thomas E. Riel Timothy G. Blount E. Donald Smith, Jr. R. Jefferson Corbett Tracey S. Trivett Kathryn C. Nye PIease find below the information you requested concerning sludge depths in the lagoon at the wastewater treatment plant. If you need additional information, please give me a call. Sincerely, 7 c Bill Stafford Water Sludge A. 31/2' 11" B. 3' 12" C. 4' 12" D. 31/2' 12" E. 2" 6" F. 31/2" 12" G. 4" 12" H. 31/2' 7" I. 4' 12" J. 31/2' 9" K. 4' 10" L. 4' 10" M. 31/2' 12" N. 31/2' 8" Doti P.O. Box 7250 White Lake, NC 28337-7250 Phone (910) 862-4800 Fax (910) 862-8686 c u`{.o?Q --tV" O u° " • „Z1 •z),. '3 .,% „Z '3 „Z� ,1-► 'v I , F FJ ,11 ,zl‘S •d a-' 1 s y-d'za von. -?as ,q , uoaa.9 VED RECE1 JAN "2000 FAEG OFFICE January 4, 2000 1— 5cQSr5 MAYOR: H. Goldston Womble, Jr. COMMISSIONERS: Thomas E. Riel Timothy G. Blount E. Donald Smith, Jr. R. Jefferson Corbett Tracey S. Trivett Kathryn C. Nye Ms. Belinda Henson Evnironmental Chemical DENR. 225 Green St., Suite 717 Fayetteville, N.C. 28301-5043 Dear Ms. Henson: Concerning your recent compliance evaluation inspection and request for water and sludge depth, be advised of the following: 6 or 7 points of each compartment were tested for the requested depths on December 16, 1999. The following are submitted for your, review. Also see the attached map. INFLUENT COMPARTMENT POINTS WATER DEPTH 1 SLUDGE. DEPTH 3.0 FT 12 IN 2 3.O FT 12 IN 3 3.5FT 14 IN 4 3.5 FT 12 IN 5 2.0FT 0 IN 6 2.0i? 4 IN 7 _3.OFT 6 IN EFFLUENT COMPARTMENT POINTS WATER DEPTH 1 SLUDGE DEPTH 3.5 FT 10 IN 2 3.0 FT 8 IN 3 3.5 FT 12 IN 4 3.5 FT 10 IN 5 3.5 FT 10 IN 6 3.5 FT 8 IN P.O. Box 7250 White Lake, NC 28337-7250 Phone (910) 862-4800 Fax (910) 862-8686 It should be noted that there is a build up of material, apparently sand, at the dischargepoint of the influent pipe. Apparently from this appearance parcipitated your request for water and sludge depths. The Town is currently in negotiations with FEMA for removal of this island of sand as described above. An island of material was removed from this area in the fall of 1998 after that hurricane season. We feel that this island is a result of flooding caused by hurricanes. Also, be advised that the Town has in the past two years and since the beginning of the algae problem worked toward a solution. We have conducted_ interviews with area businesses _ofthe type _of _laundry.. detergent they use and have offered education programs to reduce phosphate detergents. It is the belief that reducing one of the two nutrients, nitrogen or phosphate, creating an off -balance, would prevent an algae bloom. In the summer of 1998, the Town exceeded BOD parameters for two (2) months, July and August. A fine was levied against the Town by the State of N.C. for this violation. In subsequent hearings in Raleigh, the Town provided information, some scientific, as the causes of BOD was algae. The State countered and only offered that the Town's highest months of BOD were July and August. This past summer the town was also: fined for BOD exceedence (this time the:month of June). We are requesting a hearing of this fine. The Town's position is the same as last year's. As the algae is not a BOD until it dies, and that happens only in a BOD test. When we ship the sample out, the algae is still alive and is not a BOD at that time. When the algae is discharged from the effluent, it can be helpful to the swamp where we discharge. We are a non -point source discharge facility, discharging into the best scenario, a wetlands receiving stream. Algae a can be . beneficial to the oxygen deficient waters of the wetlands,.giving off oxygen during the day. It is again mentioned that a cover crop beused to possibly eliminate algae as it seems now that all parties concerned agree that BOD exceedence is caused -by algae. Thereisnothing I have read in the numerous- publications -- to suggest something other than use of a cover crop. Some chemicals have. been suggested, however, they have proved to be harmful to the micros. The Town is currently talking with FEMA to have the lagoon dredged and with the operation of the new bar screen & grit chamber, may find that these two efforts would reduce the algae. Mr. .Tim Frush, Public Works Director, has been in contact with the Town Engineer concerning the algae. Other than that which is mentioned, there is not much known about algae and prevention, or at least the people I've talked to. If you know of another plant that has successfully eliminated algae, please advise. I'm sure this Town is not the 'only plant with this problem. This should complete all requested information concerning your Compliance Evaluation Report. Should you have any further questions, please contact me at 910-862- . 4800. Respectfully yours, Bill Stafford, ORC 6 cc- MW/Stafford � \cA ex- f k u.16, c3 e✓ vev