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NC0043532_Enforcement_20120109
NCDENR North Carolina Department of Environment and Natu Division of Water Quality Beverly Eaves Perdue Charles Wakild, RE. Governor Director January 9, 2012 CERTIFIED MAIL 7010 2780 003 4825 5567 RETURN RECEIPT REQUESTED The Honorable Joyce H. Little Town of Oakboro P. O. Box 610 Oakboro, NC 28129 Dear Mayor Little: a Resources Dee Freeman Secretary EDGE D ID Alt Si ON CVATERQtJALITV J.A.N I 3 202. toi0ORESVOL: ONAL OFFICE Subject: Remission Request of Civil Penalty Assessment NPDES Permit Number NC0043532 Town of Oakbbro WWTP Stanly County Case Number LV-2011-0191 In accordance with North Carolina General Statute 143-215.6A(f), the Director of the North Carolina Division of Water Quality considered the information you submitted in support of your request for remission and remitted $250.00 of the $586.74 civil penalty assessment. The revised civil penalty is therefore a total amount of $336.74, which includes $86.74 in investigative costs. A copy of the Director's decision is attached. Two options are available to you at this stage of the remission process: You may pay the penalty. If you decide to pay the penalty please make your check payable to the Department of Environment and Natural Resources (DENR). Send the payment within thirty (30) calendar days of your receipt of this letter to the attention of: Bob Sledge NC DENR-DWQ — Point Source Branch Compliance & Expedited Permits Unit 1617 Mail Service Center Raleigh, North Carolina 27699-1617 OR 1617)11ail Service Canter, Raleigh, North Carolina 276990617 Location: 512 N. Salisbury SI Raleigh, North Carolina 27604 Phone: 919-807-6300 FAX, 919-807-6492 Internet: oAvisf ncwaterqualrty.org An Equal Opportunity \ Affirmative ktior Employer NorthCarolina ,Vaturally Mayor Joyce }1. Little LV-2011-0191 Remission. Decision p. 2 You may decide to have the Environmental Management Commission's (EMC) Commit Civil Penalty Remissions make the final decision on your remission request. on If payment is not received within 30 calendar days from your receipt of this letter, your request for remission with supporting documents and the recommendation of the Director of the North Carolina Division of Water Quality will be delivered to the Committee on Civil Penalty Remissions for final agency decision. If you or your representative would like to speak before the Committee, you must complete and return the attached Request for Oral Presentation Form within thirty (30) calendar days of receipt of this letter. Send the completed form to: Bob Sledge NC DENR-DWQ — Point Source Branch Compliance & Expedited Permits Unit 1617 Mail Service Center Raleigh, North Carolina 27699-1617 The EMC Chairman will review the supporting documents and your request for an oral presentation (if you make the request). If the Chairman determines that there is a compelling reason to require a presentation, you will be notified of when and where you should appear. If a presentation is not required, the final decision will be based upon the written record. Please be advised that the EMC's Committee on Civil Penalty Remissions will make its remission decision based on the original assessment amount. Therefore, the EMC may choose to uphold the original penalty amount and offer no remission, they may agree with the DWQ Director's remission recommendation detailed above, or the penalty amount may be further remitted. Thank you for your cooperation in this matter. If you have any questions, please contact Bob Sledge at (919) 807-6398, or via e-mail at bob.sledge@ncdenr.gov. Sine ohn E. Dressy, Supervi " Compliance & Expedited Permits Unit Attachments cc: Mooresville Regional Office — SWP Section Enforcement File DWQ Central Files I IVISION OF WATER QUALITY CIVIL PENALTY REMISSION -FACTORS Case Number: LV-2011-0191 Region: Mooresville County.: Stanly Assessed .Entity: Town of Oakboro WWTP Permit: NC0043532 Q (a) Whether one or more of the civil penalty assessment factors were wrongly applied to the detriment of the petitioner: (b) Whether the violator promptly abated continuing environmental damage resulting from, the violation: The violations in question occurred during one week when the WWTP experienced heavy flow due to i&i that upset a fragile WWTP. The remainder of April was compliant for DOD and TSS. While acknowledging the WWTP did recover quickly, the cited causes of the violations were a long time in coming. By the Town's own words, wastewater infrastructure and operations have been neglected for a long time. This neglect had more to do with these violations than the rainfall and l&l. Ammonia noncompliance persisted for a few more weeks. (c) Whether the violation eras inadvertent or a result of an accident: The facility states the violations were the result a combination of factors. High flows reached the WW TP at a time when its biomass was producing light solids that did not adequately settle. Only one of three permitted clarifiers was in operation at the time, and some solids washout occurred. While the WWTP staff has done a good job dealing with a difficult situation during the winter, these particular violations have less connection with those of prior months. These violations would have been avoidable had the Town been committed to better operations and maintenance over the years. (d) Whether the violator had been assessedcivil penalties for any previous violations: 'The facility was assessed six s during the 5 years prior to the date of this assessment. (e) Whether payment of the civil penalty will prevent payment for the remaining necessary medial actions: The Town has documented almost $20,000.00 in unbudgeted funds spent to address the noncompliance. Additional funds are proposed in the upcoming budget to fund process improvements. DECISION (Check One) Request Denied 0 Full Remission 0t- etain Enforcement Costs? Yes No Partial Remission $ (Enter Amount) rev 10-8.31 )9 STATE OF NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION COUNTY OF STANLY DWQ Case 'Number LV-2011-0191 IN THE MATTER OF ASSESSMENT OF CIVIL PENALTIES AGAINST: Town of Oakboro REQUEST FOR ORAL PRESENTATION I hereby request to make an oral presentation before the Environmental Management Commission's Committee On Civil Penalty Remissions in the matter of the case noted above: In making this request, I assert that I understand all of the following statements: This request will be reviewed by the Chairman of the Environmental Management Commission and may be either granted or denied. Making a presentation will require the presence of myself andlor my representative during a Committee meeting held in Raleigh, North Carolina. My presentation will be limited to discussion of issues and information submitted in my original remission request, and because no factual issues are in dispute, my presentation will be limited to five (5) minutes in 'length. The North, Carolina State Bar's Authorized Practice of Law Committee has ruled that the appearance in a representative capacity at quasi-judicial hearings or proceedings is limited to layers who are active members of the bar_ Proceedings before the Conunittee on Remissions are quasi-judicial. You should consider how you intend to present your case to the Committee in light of the State Bar's opinion and whether anyone will be speaking in a representative capacity for you or a business or governmental entity. If you or your representative would like to speak before the Committee, you must complete and return this form within thirty (30) days of receipt of this letter. Depending on your status as an individual, corporation, partnership or municipality, the State Bar's Opinion affects how you may proceed with your oral presentation. See www.ncbar,corniethics, Authorized Practice Advisory Opinion 2006-1 and 2007 Formal Ethics Opinion 3. If you are an individual or business owner and are granted an opportunity to make an oral presentation before the Committee, then you do not need legal representation before the Committee; however, if you intend on having another individual speak on your behalf regarding the factual situations, such as an expert, engineer or consultant, then you must also be present at the meeting in order to avoid violating the State Bar's Opinion on the unauthorized practice of law. If you are a corporation, partnership or municipality and are granted an opportunity to make an oral presentation before the Committee, then your representative must consider the recent State Bar's Opinion and could be considered practicing law without a license if he or she is not a licensed attorney: Presentation of facts by non -lawyers is pemnssible. If you choose to request an oral presentation, please make sure that signatures on the previously submitted Remission Request form and this Oral Presentation Request form are: 1) for individuals and business owners, your own signature and 2) for corporations, partnerships and municipalities, signed by individuals who would not violate the State Bar's Opinion on the unauthorized practice of law. Also, be advised that the Committee on Civil Penalty Remissions may choose not to proceed with hearing your case if the Committee is informed that a potential violation of the statute concerning the authorized practice of law has occurred. This the day of , 20 SIGNATURE TITLE (President, Owner, etc.) ADDRESS. TELEPHONE • Mooresville Regional Office Division of Water Quality MEMORANDUM: DATE: August 17, 2011 FROM: Rob Krebs, SWP Regional Supervisor a` TO: Bob Sledge THROUGH: Marcia Alloccc BY: John Lesle SUBJECT: Request for Remission Town of Oakboro NPDES Permit No. NC0043532 Case No. LV-20i1-0191 Stanly County MRO staff has reviewed the subject request for rry ission. The Town of Oakboro reported violations of the effluent weekly average limits for BOD and TSS for the week of March 27 — April 2, 2011. The request for remission claims the violations were the result of excessive ICI, however, the rainfall data submitted with the remission request shows rainfall events as follows: 3/26/11 = 0.9 inches; 3/27/11 == 0.25 inches; 3/28/11 ,= no rainfall; 3/29/11 = 0.2 inches; 3/30111 -= 0;75 inches; and 3/31/11 = 0.1 inches. The rainfall amounts should not cause significant I&I issues, The remission request also noted that only one clarifier was in operable condition (three clarifiers are included in the facility description of the permit); The NPDES Permit states that the WWTP and collection system must be maintained to attain optimum treatment of the wastewater. The facility also violated the effluent ammonia nitrogen weekly and monthly average limitations (not assessed a civil penalty), It is recommended that the .full civil .penalty be assessed. DWQ — CIVIL PENALTY REMISSION FACTORS Case Number: ILV-2011-0191 Region: MR© Assessed Entity: Ion of t: NC0O43'32 County: Stanly El (a) Whether one or more of the civil penalty assessment factors were wro detriment of the petitioner; Y ap ad to the (b) Whether the violator promptly abated continuing environmental damage resulting from the violation, Because the violator had failed to properly maintain the facility in an operable condition (only one of three clarifiers were operable) and the Town knew the collection system had serious I&I issues, It is the contention of this office that the conditions leading up to the BOD and TSS weekly limit violations were not promptly abated, The Technical Assistance requested by the Town did not address these issues, only the ammonia nitrogen noncompliance which was not assessed a penalty in this case- (c) Whether the violation was inadvertent or a result of an acc%dent; The violations were the direct result of failure to adequately maintain the process euquiprent and collection system. This office c'oes not agree that the subsequent violations are "accidents" or,. "inadvertent' since the Town knew beforehand the process equipment was not operable. E (d) Whether the violater had been assessed civil penalties for any previoa s violations: (e) Whether payment of the oivi6 penalty will prevent payment for the remaining necessary remedial actions. The Town has spent considerable funds to correct the ammonia nitrogen nonconrpiiance. The Town was granted a $2,019.292 revolving loan by the Executive Committee of the NC Local Government Commission} on July 12, 2011 for collection system rehabilitation. Tfre Town has budgeted funds for one or the two inoperable clarifiers to be repaired. The rem(:)n request states, in years past, utilities planning, infrastructure, maintenance, and process control have been badly neglected at the Town of Oakboro for a variety of reasons." It is good commendable for the Town to take responsibility and see the need for more diligence in the operation and maintenance of their facilities; however, that does not change the facts that poor maintenance and operation led to the violations. Regional Rego Request Dented endation (Check One) Full Rene s am PaiifReri1ii`n Cu tr 1 Office Reco endat"r r (Check l One) Rectiest Denied Ei Full Remission Pat "Rectoi i (Check Ore) Request Denied Full Remission P r i l Remission Cate Coleco F. lice Dire m 'ten 11 Violator: Mo\.r caf taakboro Facili : O ikhoro \\' V1`r"TP County: Case Number: Permit Humnber: The deg and extent of i private property resulting c:t harm has been documented, taticans for tl atalpaicts or excess o assessed a the natur cilatrtin; ad of March 27-Al tt Was reported as 18.4 n cd as 60 4 nicg'1. Both reported walues would fi i ,vin`T stream _for towered dissolved oxygen and. tions for the month cif April 201. 1. Noncom \uses rnent factor ER Q f: AI„ '1 The duration and g violation; tt'uh9ic he.altl►a or to aaslaeTided solid rclie,.ted to have arhidit\. ,\tt ntot c:d for the Week of Marcia 27-April ?(:tl 1. ,.11ie f'aic el: of ; f ail i - ` f l 1. l: t )1) was reported at. ::.,r °-t> e ver tlae. permit over the pet'atlt, 13ar3;@t.. rvl l? ' ff .iltty e sf;crineed poor &lnil t() the nc ncc}mphan( aaaeaota aaag; tc th R 1 o\=yn`s response to tad one operable chu at crab!. The effect on ground or s O effect i s expected causllt t leai t',a i'\` 1.%l S.l !c distio1 cd oxygen and rface nt 4) The cost of rectify°ink; the damage; 5) 00 to make necessa a662'7�in has spent co eCt ended effluent a.degaaaite to tfo nitrca r a" ianLL: the 34'4, to h ther°thr. prior r- Ire rrrrr r art'woo room lidded Met i irc.ti tot ire \sezii the virrirrtor in � r .rrrend t::rrr tr Nit her i rritirrrrw The er Mum rr trr carapit. ssith programsa s her h the trrr ha r rrLIrtrrr guth0rit\; and '.d case red Le asps case rrt err°rrt.:.rerrr4, e n i i fluser 4 N4 DENR North Carolina Department of Environment and Natural Resources Division of Water Quality Beverly Eaves Perdue Coley H. Sullins Dee Freeman Governor Director Secretary August 11, 2011. Via E-Mail Mr. David Austin Nichols Town of Oakboro P. O. Box 61.0 Qakboro, NC 28129 Subject.; Remission. Request of Civil. Penalty Assessmen Town of 0akboro WWTP NPDES Permit NC0043532 Case Number LN-2011-0191 Stanly County Dear Mr. Nichols: This letter is to acknowledge your request for remission of the civil penalty :levied against the subject facility. Your request will be scheduled for review by the Director and you will be notified of the result. have any questions about this matter, please contact me at (919) 807-6398 or via e-mail at bob.sledge@ncdenr.gov, Sincerely, xi/4 Bola Sledge, Environmental Specialist Point Source Branch cc: Enforcement File w/originals Central. Files w/attachments Mooresville Regional Office w/attachments enter, Ralaugh, North Carolina 27699.1617 ton: 512 N. Salisbury Sr. Raleigh, Norh Carolina 27604 ne: 9194307.63001 FAX: 919-B07i64921 Customer Service:1-877-62'3.6748 Internet www.ncwatergua@Ry.org An Equal apporlunnty i Affirmative Acton Employer One North Carolina Naturally vwn Of Oak6Qr© 109-A N. Main St. — PO Box 610 Oakboro, NC 28129 704-485-335111704-485-2439 (fax) www.oakbora.com August 5, 2011. David Austin Nichols Public Utilities Director Town of Oakboro POBox 610 Oakboro, NC 28129 704-485-3351x110 Point Source Compliance/Enforcement Unit Division of Water Quality 1.617 Mail Service Center Raleigh, North Carolina 27699-1617 Written Request for Remission of Civil Penalty File No. LV-2011-0191 The Division of Water Quality has transnutted a Notice of Violation and assessed a civil penalty of $586.74 for noncompliance with weekly and monthly average effluent ammonia concentration limits and BOD weekly average and TSS monthly average limits by the Town of ©ak.boro Wastewater Treatment Plant for the month of April 2011. We stipulate the facts of these violations but request omission of civil penalty in consideration of the circumstances and response. In response to ammonia violations: In January of 2011, Ryan Efird was Operator in Responsible Charge (ORC) of the Oakboro Wastewater Treatment Plant. Ryan is a relatively inexperienced WPCSOCC certified Grade 3 Biological WWTP Operator. Ryan also supervised the in house laboratory and performed ammonia analysis by the ion probe method. From January 4, 2011 to January 13, 2011, Ryan measured effluent ammonia concentrations of 5.19, 4.43, 6.27, 6.27, 5.87 and 7.20 mg/L NH3-N. This is averaging marginally below the winter monthly limit of 6.0 mg/L. In Ryan's inexperience, he either did not recognize an imminent problem or did not know what to do about it. Ryan resigned shortly after without communicating the ammonia concern to the Backup ORC or operator remaining at the plant. After Ryan's departure, ammonia effluent samples were collected, preserved and submitted to K&W Laboratories for analysis because Ryan was the only one at the plant trained in this analysis. The remaining monitoring samples for January were submitted on January 24 and February 3 and analyzed on February 10. Results were 20, 23, 18, 30, 20 and 24 mg/L. By the time Backup ORC Larry Branch saw the results and realized there was a problem January was gone. Mr. Branch contacted the Division of Water Quality and requested technical assistance from Barbara. Sifford to trouble problem, DENRWATER POINT SOUK:i 0-own Of Qukboro 109-A N, Main St. — PO Box 610 Oakboro, NC 28129 704-485-3351/ 704-485-2439 (fax) www,oAborozorn Meanwhile I was hired to take over as ORC of the plant. I met with Mr. Branch and Ms. Sifford at the WWTP on February 22, 2011, Ms. Sifford and I reviewed operations logs and sampling data. We discussed the likelihood that low water temperatures and low mixed liquor suspended solids had allowed the nitrifters to wash out of the plant. We also talked over a plan to regain nitrification. We discovered that Ryan had been using expired reagents for the ammonia analysis. Ms. Sifford's report is attached. I learned that wasting had been previously determined by the clarifier blanket depth with no concern for sludge retention time (SRT). I used plant records to perform the environmental engineering calculation of a minimum SRT of 23 days for the minimum January water temperature of 7C. The SRT for January 24 had dropped to 13 days. The nitrifiers were being wasted faster than they could grow. I am sure Ryan did not understand this. In response to our meeting with Ms. Sifford, we activated a plan to regrow nitrifiers, a slow process with low water temperatures. 1. We seeded the plant with activated sludge containing a healthy population of nitrifiers from Monroe WWTP, 2. We increased MISS to 4200 mg/L and SRT to 40 days. 3. We began monitoring alkalinity and adding hydrated lime daily to augment alkalinity. 4. We began weekly cleaning of aerators to maintain optimal oxygen transfer efficiency. 5. We cleaned an unused aeration basin, repaired floating aerators and electrical controls. This basin went into service on April 15, 2011 substantially increasing our aeration capacity. Effluent ammonia dropped to 0.1 mg/L in one week. 6. We have replaced expired reagents and the ammonia ion probe. 7. We began sampling our influent for ammonia, realizing we can have over 100 mg/L influent ammonia and typically 40 mg/L. 8. We performed a sampling study of our collection system to identify the source of our very high influent ammonia background and shock loads. The plant has been monitored everyday since we met with Ms. Sifford including weekends and holidays. I still have not had a single day off work since then. We enlisted a community service worker to help expedite cleaning the aeration basin. DENR-WATER QUAL POINT SOURCE BRAN dawn Of Oa kbaro 109-A N, Main St. — PO Box 610 0akboro, NC 28129 704-485-33511704-485-2439 (fax) www.aakboro.ccxn We have spent considerable unbudgeted funds to rectify this situation: 1. Hauling activated sludge seed $ 1650.00 2. Reagents and ammonia ion probe $ 518.45 3. Hydrated lime $ 8389.86 4. Spill control ramps for lime slakers $ 370.00 5. Life vests to clean aerators safely $ 110.00 6. Rewind motor of aerator #2-2 $ 3040.00 7. Electrical components and tools $ 1017.51 8. Hardware, hoses and piping $ 117.60 9. Additional electricity for aerators $ 4480.00 Total $ 19693.42 We expect to continuously spend due to process improvements and have approved these expenditures in our 201.1-2012 budget: 1. Electricity $ 40/day 2. Lime $ 39/day Total $ 79/day We have been in contact and consultation with Ms. Sifford all along the process of regrowth and followed her recommendations. Copies of email communication with Ms. Sifford are attached. We have done everything in our knowledge to regrow nitrifiers and return the plant to compliance as fast as possible. After bringing the second aeration. basin on line on April 15, our effluent ammonia was not measured above 2.1 mg/L in April. In May our effluent ammonia concentrations were in compliance averaging 0.9 mg/L. In June all effluent ammonia concentrations were below detection levels. The first two weeks of July effluent ammonia averaged 0.12 mg/L while influent ammonia averaged 33 mg/L. Now we have approximately four times as much active biomass in aeration than in February. Our aeration basin DO's are between 2 and 4 mg/L with 26C water temperatures and one aerator out of service due to a lightning strike. We have an SVI less than 100 and very rapid settling sludge. July effluent TSS averages 3.5 mg/L, BOD averages 2.6 mg/L and ammonia averages 0.12 mg/L. Our plant is operating much better now after repairs, process control improvements and new management. In response to BOD and TSS violations: During the last week of March, 2011.a series of rainfalls resulted in high flows through the treatment plant and an upset of the single operating clarifier. Biosolids were lost in the effluent with resulting high BOD and TSS values. There were three contributing causes to this upset all of which have continue to be addressed, DENR-WATER QUALCTI' POINT SOURCE BRANCH 5-own 0 Qak6oro 109-A N. Main Si, PO Box 610 Oakboro, NC 28129 704-485-33511704485-2439 (fax} www.oakboro„com Date Rain al (inch) ch26,2011 0.9 Effluent Flow (MGD) 0.8856 .ch 27, 2011 0.25 ch 28, 2011 0 0.'7467 0.8023 ch 29, 2011 0.2 March 30, 2011 0.75 arch 31, 2011 0.1 0.5069 1.1473 0.7561 Cause one is very poor mixed liquor settleability. As explained above, during March we were very aggressively trying to increase autotrophic biomass to treat our excessive influent ammonia and remove us from ammonia effluent limit violations. On March 23, 2011 we measured MLSS of 4200 mg/L. At this time we only had three aerators operating in one aeration basin. Nitrification, was depleting our aeration basin dissolved oxygen to an average of 0.6 mg/L over the period of March 26 to March 31. Without enough oxygen to consume all the ammonia and BOD, heterotrophic bacteria were generating excessive extracellular storage polymers resulting in an almost gelatinous diffuse growth. Settling was extremely slow. During typical flow days, clarification was adequate and effluent quality was good. During high storm flow days, clarifier upset resulted in biosolids loss and poor effluent quality. After opening aeration basin #2 on April 15th, MLSS has been stabilized to 2700 mg/L, aeration basin dissolved oxygen has been above 3 mg/L except for the hottest days of July, SVI has dropped to below 100 and settling is extremely good. This cause has been eliminated. Cause two is only having one operational clarifier. For many years the treatment plant has been running solely on clarifier #3 with design and peak flow ratings of approximately 400 and 900 GPM. During much of the storms of the week of March 26 to 31, our effluent meter was peaked beyond its range of 999 GPM. The other two clarifiers are rusted out and not in operable condition. Recognizing this is a terribly dangerous situation, we met with Mike Matousek of Kemp, Inc to discuss rehabilitation of our other two inoperable clarifiers in middle March. We included his estimate in our 2011-2012 budget proposal. Funding to rehabilitate one clarifier was approved in our budget in June. In July, we worked with Special Projects Coordinator Larry Branch exploring other sources of funding such as grants or low interest loans at the request of our Town Board. After failing to find alternative financing, we are moving forward with a competitive bid process. We are meeting with the contractor that built our operating clarifier today and the contractor that is doing our Main Pump Station rehabilitation on Monday. We hope to have another operating clarifier before the winter rainy season sets in. DENR-VVATER OUAL1W POINT SOURCE BRANCH gown 0 OakEloro 109-A N. Main Si — PO Box 610 Oakboro, NC 28129 704-485-33511704-485-2439 (fax) WVAV oak bora corn Cause three is a severe inflow and infiltration problem. Oakboro has a very aged collection system. In 2005 a Sanitary Sewer Evaluation Study was done to determine the extent and causes of our 1 & I. A 300,000 gallon equalization basin has been built to mitigate heavy I & I flows successfully reducing the number and extent of SSO from our Main Pump Station. This also buffers flows to the treatment plant. Unfortunately extended rainfall will overflow the EQ basin. On July 12, 2011 the Executive Committee of the NC Local Government Commission approved a $2,019,292 revolving loan to the Town of Oakboro for the purpose of collection system rehabilitation to decrease 1 & I. Plans and specifications for the work are in progress. We hope to get this badly needed work started soon. In years past, utilities planning, infrastructure, maintenance and process control have been badly neglected at the Town of Oakboro for a variety of reasons. Recently there has been personnel turnover in the Town Administrator, Collections and Distribution ORC and Wastewater Treatment Plant ORC positions. Additionally there is a shift in our Town Board both in makeup and thinking. We are in the process of hiring new more qualified and responsible employees and retraining old employees. A huge push has begun to uncover and solve many of the problems that have been swept under the rug for years. Critical flaws and deficiencies are discovered daily. We are working diligently with limited financial, manpower, expertise and equipment resources to triage and fix or stabilize the most critical problems first and catalog the many lesser problems to be addressed as soon as possible. Many of the problems are quite extensive and require coordinating with multiple outside contractors over a period of time. The process is long and very frustrating but we are making headway. We sincerely appreciate the patience and assistance of DENR and DWQ. We accept the facts that the plant has been out of compliance and DWQ's right to fine the Town of Oakboro. We have been working to identify and correct the causes of the violations. However the funds that would pay fines would be much better spent in our continued process improvements and rehabilitation work. We request that no fines be levied. David Austin 'Nichols DER -WATER QUALITY POINT soyRcE BRANCH DWQ Case Number: Assessed Party: County: Permit Number: Amount Assessed: JUSTIFICATION FOR LV-2011-0191 Town of Oakboro Stanly NC0043532 $586.74 SS ON REQUEST Please use this form when requesting remission of this civil penalty. You must also complete the "Request For Remission, Waiver of Right tganAdministrative Hearing, and Stipulation of Facts" form to request remission of this civil penalty. You should attach any documents that you believe support your request and are necessary for the Director to consider in evaluating your request for remission. Please be aware that a request for remission is limited to consideration of the five factors listed below as they may relate to the reasonableness of the amount of the civil penalty assessed. Requesting remission is not the proper procedure for contesting whether the violation(s) occurred or the accuracy of an of the factual statements contained in the civil penalty assessment document. Pursuant to N.C,G,S. § I.43B-282.1(c), remission of a civil penalty may be granted only when one or more of the following five factors applies. Please check each factor that you believe applies to your case and provide a detailed explanation, including copies of supporting documents, as to why the factor applies (attach additional pages as needed), (a) one or more of the civil_penalty assessment factors in N,C.G..S. 143B-282.1(b) were wrongfully led to the detriment of the petitioner (the assessment factors are listed in the civil penalo; assessment document); (h) the violator prom_ntiv abated continuing environmental damage resulting from the violation explain the steps that you took to correct the violation and prevent lieture occurrences); (c) the violation was inadvertent or a result of an accident (i.e., explain -why the violation was unavoidable or some -zing you could not prevent or prepare Ibr); (d) the violator had not he en as essed civil penalties for any previous violations; (e) payment of the civil penalty will prevent payment for the remaining necessary remedial actions (i.e., explain how paylnent of the civil penalty will preverzt ou Jror performing the activities neeessar_y to achieve compliance), EXPLANATION: (use additional pages as necessary) 4e7:17-BW-6TTALJTY T SOURCE BRANCH STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES COUNTY OF STANLY IN THE MATTER OF ASSESSMENT OF CIVIL PENALTY AGALNST TOWN OF OAKBORO PERMIT NO, NC0043532 WAIVER OF RIGHT TO AN ADMINISTRATIVE HEARING AND STIPULATION OF FACTS FILENO. LV-2011-0191 Having been assessed civil penalties totaling $ 586.74 for violation(s) as set forth in the assessment document of the Division of Water Quality dated August 1, 2011, the undersigned, desiring to seek remission of the civil penalties, does hereby waive the right to an administrative hearing in the above -stated matter and does stipulate that the facts are as alleged in the assessment document. The undersigned further understands that all evidence presented in support of remission of this civil penalty must be submitted to the Director of the Division of Water Quality within 30 days of receipt of the notice of assessment, No new evidence in support of a remission request will be allowed after 30 .days from, the receipt of the notice of assessment. This the day of ADDRESS TELEP ONE 7C) q 416 29( AUG 0 9 2011 DE -WATER OUALtTY POINT SOURCE BRANCH NCDENR Nort-i Carolina department of Environment and Natural Resources Division of Water Quail Beverly Eaves Perdue Caleen R. Sullins Dee Freeman Governor Dfrector Secretary Mr. Larry Branch ToM-n of Oakboro 109-A N. Main St. P.O. Box 610 Oakboro, NC 281.29 Dear Mr. Branch: Subject: Technical Assistance Evaluation Town of Oakboro NPDES Permit No. NC0043532 Stanly County, NC This letter is a follow-up to the technical assistance request made on February 18, 2011 concerning the elevated ammonia results received from K&W labs for the last two weeks of January 2011. A site visit and plant operations was conducted on February 22, 2011. Operations records and plant data were reviewed. The review of effluent data for BOD and TSS indicate good treatment and biological activity. The pH of the effluent has not been below 7.0 and alkalinity tested was over 200mg!1 so those two analyses indicate that the system is not nitrifying. Operational Problems: Aerator 42 (lof 3) was out for the last two weeks in January. This resulted in a lower. DO levels leaving the aeration basin but was not recorded below 1.0 mg/1. BOD and TSS removal efficiencies remained within expected ranges and compliant during this period. It appears that the nitrifying bacteria population has died off. This could be the result of two much wasting or the severe cold temperatures that were present in January. The sludge has to be "aged". as the nitrifiers are an older organism. Wasting during the extreme cold weather may have resulted in loosing the entire population. Using the MCRT formula the plant needs to be around 20 days for extended aeration during the inter . ntl s to maintain nitrification. The MLSS were low and this has not allowed nitrifiers to reproduce during January when the temperature was the coldest we have had in many years. Nitrifiers have a much slower growth rate than pe er otrophic bacteria (BOD bugs) and comprise a very small amount of the total biomass. 4 LSE 4R WATER gliGLi -y POIKT SOURCE Bu&7 olina wally :;ai:boro 7-tb7UltrY 2C11 Analytical E 'siva'tion: During this evaluation of laboratory data for the months of January and February 2011 the test results for ammonia were reported by two different methods. Prior to the ORC leaving (Ryan Efird) was using the ion probe on site that the WWTP laboratory was certified to do. Upon his leaving this was contracted out to K&W labs using a different method. Investigation is being made into the probe and standards that were being used to determine if a malfunction had occurred in the equipment at the WWTP lab to provide this drastic change in concentrations of NEI3. The specific ion meter has been recalibrated a new curve has been run with great results so the meter and probe are working properly. These results will be compared to the commercial laboratory for the next week to determine reliability. Currently, it will be used for process control. Corrective Actions Taken: 1, Immediately stopped sludge wasting to increase the MCRT ofthe biological system. 2. Increased sludge return rate to get them back in the aeration basin quicker. (Back to food) . March 4, added 5400 gallons of 1vMLSS from Monroe WWTP to reseed the WWTP, 4. Monitor pH and alkalinity levels and monitor ammonia for process control. 5. Monitor influent for ammonia levels to determine removal rate and any slug loadings. Wait and see the results, patience. If you need any additional assistance on any compliance rn.atter please call my direct number at 704- 196 in the Mooresville Regional Office. Sincerely, Barbara Sifford Technical Support Mooresville Regional Office CC: David Nichols EPA n Agency A: Nati rspeotion Report y tef 2 40-OO 7 Approval expires 8-31.98 2 Inspection b"1ar"c Days NPDES t4C0043532 11 12 yrrmo1day _1/ .2/< 2 Remarks .1►LJJ, Facility Self -Monitoring Evaluation Rating 70U 71 91 72 QA Inspection Type Inspector Fec Type 1BI r:. 191 s] 2011 Se F, Data Reserved 751 1 1 of Facility Inspected (Fort NPDES permit Number) 3 Barbees Grove Rd 281299 e(s) of De Pepresentative(s)fl7 22. 0/704-485-4613/ Cress of ustn H Lit1e Box 610 Cakboro NC 26 Reoords/Repor s c nplianoe Sc„lecules aoru 'C: Areas Self-Mon(t Laboratory f Find(ngtC € rnents (Atta t eddst ono( sheets of narrative a Users discha Number('s) to P u Entry 3me? ate Perrrait Effective Date 2/2 PM 11/©2/2 Other Faclity Data urine, Rraspe ion iQhedk rrt@y those areas evaluate e attachment summa. Program 10/02/01 Permit Expiration udge Handling 1 isp©sat Facility Site Review. Signaturres} of Inspector(s) cy/Officelhone and Fax Numba Date S.*ffo d MF'0 w0//704-563-16 9 Lxt.2196/ 14/01/31 ature of Management n A Reviewer EPA Form. 3550-3 (Rev 9.94) Previous edd ions are obsolete. Agency/Offi'P.hone anC Fax Numbers Date Page # NEDES NC0043S32. SectionSummary of Pen AUG9 DENR-WATER OUAL9° PONT SOURCE BRA Page 2 Permit: NCC3532 Owner - Facitity:aldst�rt Inspect't©n Date: 022212011 Inspection Type: 7eonnical Assistance Compliance Schedules is there a compliance schedule for this facility? is the Facility ccmpfiant with the permit and conditions for the review pedod? Comment: Comfirmed the data from K&W Tabs, on Friday 3/4 planning to haul MLSS from Monroe to introduce apopulation of nitrifiers to the system. Alkalinity is suffiecient to promote growth. Hopefully this will lead to compiinace. For two weks the plant has not wasted to age the MLSS and this has not started the nitrifiers. Effluent Sarrl�ling is composproportional? Is sample II° all treatment units? is proper volume collected? is the tubing clean? is proper temperature set Is the facility sampling pertc sample storage (kept at less than or equal to 6.0 degrees Celsius)? red as required by the permit (frequency, sampling type representative)? Comments Additional gamples need to be collected and analyzed to trend data for plant performance. Influent Sampiin� is compcs to sampling flow proporti nal" Is sample collected above side streams? 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 sampling performed according to the permit? Comment: influent data should be performed for ammonia to determine removal rate and if any slug loads are indicated. Record Keeping Are records kept and maintained as required by the permit? is ail required inform readily a.vailabie, complete and current? Are all records maintained for 3 years (lab. reg. required 5 years)? Are analytical results .nsistent with data reported an Dfbt Is the: chair -of -custody complete? gates, to ~es nd iccsticn 'sampling Name of individual performing the semolina ° 'E.R QUALt MCA iROE r3RANCH Yes No NA NE 1 0 0 © On00 Yes No NA NE O 050 O 0 1 0 O 0100 O 0 E n O 0 e 0 n011 0 Yes No NA NE O 00II O 00n O 000 O 0011 O 0 0 m 0 0 0 m Yes No NA NE ■ ©❑00 s000 $ 0 0 0 m 0 0 0 s 0 0 0 0 Page # 3 Inspect Pe it. NC0043,532 nDate: Facility: CaKbor Type: ys darn of person pert ring n Transported U ,re DWIRs co,pieta: do they in p ararrkete the facility submitted is annul complain report to users and ty° the O D a e ORC eert.f ed SAGO perm ea flow) avaSabie and came grade aqua Bey^ aperte 2417 vrith a certified ipher than the facility ciassktt p Tatar ea ti'os No NE de teas nr greater than the facility alassif t,nnp py of he PurrsPDES permit ava.la le nn site, Fac ty has dray of prey pus years , nr ent, r file far revie 5 From: dnicholsCoakboro.tom <d IcholsZtoakboro,coma To: barbare.sifford©ncdenr.gav Cc: rholshouser©oakbor©.com Date: Wednesday, March 02, 2011 05:14 pm Subject: Attachments: l ls. Sifford:I have received the new ISA reagent and calibrated the meter and ammonia ion probe from scratch at 100, 10, 1 and 0.1 ppm. I followed the calibration with four freshly made up standards and got a 95° © slope and correlation coefficient of 1, so the meter and probe are good. I checked a grab of effluent and got 25.9 ppm which agrees much better with the numbers we are getting back from K&W. I'm going to run split samples with K&W on the next few composites just to confirm, We have increased the sludge return rate trying to get more bacteria into aeration and jump start the recovery of ammonia oxid"rzing bacteria, We haven't wasted since you were here. We'll check the MLSS and RAS SS tomorrow and I"11 calculate a WAS flow for a SRT target of 40 days. I think Larry is impatient, but I realize the regrowth of ammonia oxidizing bacteria is very slow.Do you have any other suggestions? David Nichols http:// ail.aakbora.c©m/edgedeski .exe?id= 16a1cacc467e237c87dde77ae... 6 7/2011 From: dnicholakbaro,com c€ nicholsCoakboro.com> To: Sifford, Barbara <barbara,sifford@ncdenr.govs Cc: rholshouser©oakboro,eom Date; Thursday, March 03, 2011 05:44 pm Subject seeding oakboro WWTP Attachments: UG 0 9 2011: DENR-WATER QUALITY POINT SOURCE BF.ANCH Ms. Sifford: 1 have talked to Kyle Ketchum at Monroe WWTP about providing activated sludge with high nitrification activity to seed our plant. They are agreeable but want approval from you that this is OK and to know if there is any paperwork we need to do. Please give Kyle a call at 704-282-4612 as soon as possible so we can get moving on this. We have a hauler on standby. Thanks, David Nichols 704-984-0320 cell 704-485-4613 office 704-485-4918 home -Original Message—_-- Frorn: Sifford, Barbara[mailto:barbara.sifford@ncdenr,gov] Sent: Wednesday, March 2, 2011 04:26 PM To: dnichals oekboro,com Subject: RE: This means the whole month of February is out of compliance. I think now we need to add dehydrated bugs or maybe some from another WWTP to get them jump started. With three months of consecutive non compliance the $ starts going up and you get on the compliance watch list. See what Larry wants to do, I would buy or transport from Badin or from WSACC. Tim Mauldin is the contact for WSACC, and I know they would have nitrifiers in the MLSS. At least you know where the plant effluent is now. We can watch it progress, Looks like you got a great curve for the standardization, Chet had said that you are to run more than one standard to match the curve when you run the results. I think Ryan had been only running one. Frorn: dnichols@oakboro.com [maiito:dnichols@oakboro.com] Sent; Wednesday, March 02, 2011 4:14 PM To: Sifford, Barbara Cc: rholshouser@oakboro.com Subject: Ms, Sifford:l have received the new ISA reagent and calibrated the meter and ammonia ion probe from scratch at 100, 10, 1 and 0.1 ppm. 1 followed the calibration with four freshly made up standards and got a 98% slope and correlation coefficient of 1, so the meter and probe are good. I checked a grab of effluent. and got 25,9 pprn which agrees much better with the numbers we are getting back from K&W. I'm going to run split samples with K&W on the next few composites just to confirm. We have increased the sludge return rate trying to get more bacteria into aeration and jump start the recovery of ammonia oxidizing teria. We haven't wasted since you were here. We'll check the MLSS and RAS SS tomorrow and I'll curate a WAS flow for a SRT target of 40 days. I think Larry is impatient, but 1 realize the regrowth of ammonia oxidizing bacteria is very slaw.Do you have any other suggestions7David Nichols http:/mail.oakboro,corm/edgedeslo''cgi-binitiie t ail.exe?id=016a1c c467e237c87dde77ae... 6/7/2011 This means the whole month of February is out of compliance. I think now we need to add dehydrated bugs or maybe some from another WWTP to get them jump started, With three months of consecutive non compliance the $ starts going up and you get on the compliance watch list. See what Larry wants to do. I would buy or transport from Badin or from WSACC. Tim Mauldin is the contact for WSACC, and I know they would have nitrifiers in the MLSS. At least you know where the plant effluent is now. We can watch it progress. Looks like you got a great curve for the standardization. Chet had said that you are to run more than one standard to match the curve when you run the results. I think Ryan had been only running one From: dnichols@oakboro.com [malfto:dnichols@oakboro.com] Sent: Wednesday, Mardi 02, 2011 4:14 PM To: Sifford, Barbara Cc: rholshouser@oakboro.corn Subject: Ms. Sifford:I have received the new ISA reagent and calibrated the meter and ammonia ion probe from scratch at 100, 10, 1 and 0.1 ppm, I followed the calibration with four freshly made up standards and got a 98% slope and correlation coefficient of 1, so the meter and probe are good. I checked a grab of effluent and got 25.9 ppm which agrees much better with the numbers we are getting back from K&W. I'm going to run split samples with K&W on the next few composites just to € onfirrn. We have increased the sludge return rate trying to get more bacteria into aeration and jump start the recovery of ammonia oxidizing bacteria. We haven't wasted since you were here. We'll check the MLSS and RAS SS tomorrow and I'll calculate a WAS flow for a SRT target of 40 days. I think Larry is impatient, but I realize the regrowth of ammonia oxidizing bacteria is very slow.©o you have any other suggestions?David Nichols OENR-WATER UAL:TY r!.0IN'T SOURCE SRANCH. http://mail.o kboro.carte'edgedes !cgi-bin0\Tim a l exe"?id=01.6a1cacc467e237c$7dde77ae... 6/7/2011 From: cinichols@aakbora.com cdnicholsCboakboro,com> To: Sifford, Barbara <barbara„siffordtgpncdenr,gov> CC: rholshouserCoakboro,com, IbranchOoakboro.com Date: Ftiday, March 04, 2011 05:25 pm Subject: Re: seeding Oakboro WWTP A nts: Today (3-4-11) we added 5400 gallons of fresh mixed liquor from the Monroe WWTP into our aeration basin, Kyle Ketchum advised me that Monroe had about 3600 mg/L MLSS and very strong nitrification so this should help. This was enough that our DO had dropping to 1.04 mg/L. I want to let the DO recover some before adding more from Monroe possible Monday. Our pH hasn't changed. Ammonia on grab samples appears to be dropping but is waivering enough with influent that it is hard to be sure yet. I will keep an eye on DO, pH and ammonia over the weekend. I need to set up to test alkalinity in house when I get a chance. Thanks, David Nichols ----Original Message ----- From: Stfford, Barbara [mailtotarbara.sifford@ncdenr.gov] Sent: Friday, March 4, 2011 10:49 AM To: dnichols@oakboro.com Subject: RE: seeding Oakboro WWTP Sorry I was out yesterday afternoon for a doctors appointment, Wes said the talked to you and left Kyle a message. Good luck and we'll see what happens. It is definitely OK with us just document how much and when and then you can monitor the ammonia to see it drop. As Wes said what the pH and alkaiinity, because they wiU take it up, but you know that. From: dnichols@oakboro.com [mailto:dnichols@oakboro.corn] Sent: Thursday, March 03, 2011 4:45 PM To: Sifford, Barbara Cc: rholshousergoakboro.com Subject: seeding Oakboro WWI? Ms. Sifford: I have talked to Kyle Ketchum at Monroe WWTP about providing activated sludge with high nitrification activity to seed our plant. They are agreeable but want approval from you that this is OK and to know if there is any paperwork we need to do. Please give Kyle a call at 704- 82-4612 as soon as possible so we can get moving on this. Ve have a hauler on standby. Thanks, David Nichols 704-984-0320 cell 704-485-4613 office 704-485-4918 home ----Original Message -- From: Sifford, Barbara [mailto:barbara.sifford@ncdenr.govj Sent: Wednesday, March 2, 2011 04;26 PM To: dnichols@dakboro.com Subject: RE; i-r\L'G 0 9 2011 DENR-WATER QUALITY POINT SOURCE BRANCH 'maiLoakboro.corriledgedesk/cgi-bin/vie 1. x ?id=016a1cacc467e237c87dde77ae... 6/7/2011 From: dnichois©oakboro.corn <dniChols©oakboro.com> To: Sifford, Barbara <barbara.siffo.gov> Cc: rholshouserrPoakboro.cam, Ibranch©oakboro.com ©ate: Tuesday, March 15, 2011 05:08 pm Subject: Re: Ammonia Attachments: We added another 5400ga1 of mixed liquor from Monroe WWTP last week. I checked our MLSS today and got 2840mg/L, much higher than expected considering we have had an upset clarifier twice in the last two weeks from I&I. I've stored biosolids in the aeration basin both times. This is almost double MLSS what we had in January. Ammonias from 3-9-11 and 3-10-11 were 21.9 and 21,4mg/L. I checked and our influent ammonia is running about 40mg/L. Not great news. Leon and I cleaned our aerators which has driven our basin DO from struggling to maintain 1 up to 3-4mg/L. Our effluent pH is starting to drop a little which may mean nitrifiers using up alkalinity. I've ordered some test strips to keep a close eye on alkalinity, (Setting up to do the titration is on my long list of things to do but the test strips are cheap, easy and quick to mplement.) I'm afraid we will be out of compliance for March on ammonia because it takes time to grow back the nitrifiers especially since we are still at only 12C for water temps. Thanks, David Nichols ---Ciriginal Message ----- From: Sifford, Barbara [mailto:barbarra., Sent: Tuesday, March 15, 2011 03°:51 P To: dnichols@oakboro.com Subject: Ammonia 0 ncdenr.gov] How is the plant running now? Haven?t heard anything, i?m afraid to think that no new is good news. Please note new email address Barbara Sifford - Barbara.Sifford@ncdenr.gov Technical Consultant North Carolina Dept. of Environment & Natural Resources Div. of Water Quality 610 E. Center Ave,, Suite 301 Mooresville, NC 28115 Ph: 704.663.1699 Fax: 704.663,6040 E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties. 1 http://'m t.€ akboro. camiedgedeslc./cgi-bini'viewmaiI.exe?id= o I6a 1 cacc467e237c87dde77ae... 6/7/2011 From; driicholspoakbaro.com ‹dnichols kborocom> To: Sifford, Barbara <barbara.siffordancidenr.gov> Cc: Hoishouser, Ross <rholshousereboakboro.com>, Brarch, Larry <lbranchaoakboro,com> Date: Friday, March 25, 2011 05:02 pm Subject: Ammonia at Oakboro WWTP Attachments: s. Sifford: This week we got the plant MUSS up to 4200mg/L and started wasting at a rate to establish a 40 day SRT. Also our alkalinity has dropped to around 100mg/L and I am maintaining it there with the addition of hydrated lime. pH remains 7-7.3. And our water temp has warmed to 15C. I continue to ramp up our RAS rate. Again this week, Leon and I cleaned our aerators to give maximum DO input. It appears the aeration basis has a lot of stringy material at the bottom that keeps clogging the aerators, I want to drain and clean it when we get the other aeration basin going. We are progressing on getting the second aeration basin into shape. Leon, a community service worker and I are shoveling the grass and weeds from the bottom. Ail the aerators work and I spent some time today diagnosing the motor controls. We need to order some electrical parts, move one aerator around to the basin and restring the guy wires. Leon and I have drained the unused clarifiqrs. But we need to enter them and clean out some rust and heavy solids from the drains before we can use them as interim EQ basins to relieve the one serviceable clarifier under heavy flows. (The troughs are unuseabie but they are OK as holding tanks.) Kemp is getting me an estimate on rehabilitating the troughs and arms of the unused clarifiers so we can propose that for the 2011-2012 budget. We tried to clean the 2.5ft of sludge from our chlorine contact chamber but Rain for Rent brought the wrong pump, There are no drains, We will try again ASAP. The sludge is septic and may be a source of NH3. All this and we are still hovering around 20mg on our effluent ammonia. Out influent ammonia was 44mg/L this week. (Our influent sampler Is at the main pump station 4 miles upstream from the plant so the real influent ammonia is probably higher.) I don't know if the removal we are seeing is volatilization, nitrification or formation of chloramines (I am slowly dropping the chlorine feed with no change in ammonia). But the last 20mg/L is elusive. I don't know what else to do, but keep promoting the right conditions and wait. Any more suggestions? Thanks, David Nichols AUG 0 9 2011 DENRWATER QUALITY PONT SOURCE BRANCH http://m ail. oakb comiedgedesk/cgi-binIviewmaitexe?id=016alcacc467e237c87dde77ae... 6/7/2011 kboro.cdi hats@ To: Cc: Siffor Branch La <barbara,siff' ord ncdenr.gov> branchaoakboro.com>, Holshauser Ross <rholsh ©ate: Tuesday, April 12, 2011 08:38 am subject: Adchments: e oakboro.com> bara: Help! Good news: finally last week we started to show the needed improvement in effluent ammonia: 6.0,, 15 and 8.1 mg/L. This is with an influent ammonia greater than 100 mg/L. We were augmenting about 40 rng/L of ammonia everyday. Bad news: about Thursday of last week our aeration basin DO dropped to 4.3rng/L and has hovered there since. I was away at Well school when this happened. Monday morning early Leon and cleaned all our aerators which are running well but this hasn't helped. The plant has stopped using alkalinity which hovers at 100mg/L. Our effluent 80p's are running a little high as well.. The only reasonable explanation I have is someone is sporatically dumping into our collection system something with a huge oxygen demand. I'm waiting for the influent BOD numbers. We aren't set up in house for COD. We are working as quickly as possible to rehab the second aeration basin to get some more DO capacity. However the three we are operating gave DO's over 3..0mg/L a few weeks ago. Do you have any suggestions on tracking down our 00 problem? Should we start pulling NH3 and COD samples from the collection system and try to track down the source? Thanks for any help you can give. David Nichols WWTP/Collections ORC Town of Cakboro PO Box 610 Oakboro, NC 28129 dnich©ls@oakboro.com 704-984-0320 cell 704-485-4613 office 704-485-2439 fax http://rnail.o lkbaro.camiedgedeskr"cgi-biniview°r aail.exe?id=E? 16a1 cacc467e237c87dde77ae... 6/7/2011 nich s akboro c rr: t 1 a35 oakborn:coms Ta: Slfford, Barbara <barbara.siffordencdenr.gov> Cc: Branch Larry <IbranchOoakboro.com>, Holshouser Ross arholshwuseri iakboro,com> Gate: Friday, April 15, 2011 10.:27 am Subject; Re: Attachments; OUCH! That is terrible news for those that work there and those of us you help. Our basin DO is still hovering around 0.3mg/L. I had a COD ran on Tuesday influent composite and got only 344rng/L, indicating if something was dumped it is gone. I'm wasting with a SRT=30 day target. MLSS=4loomg/L this week. We are still nitirying but not good enough. Influent 40.7mg/L, effluent 10.1, 10,0 and 7.88mg/ this week. I need to get the DO up before I can expect any better than this. Were starting to use alkalinity again. I'm working on getting the other aeration basin going as hard as I can. We've cleaned out the weeds. I tested the drain yesterday. I'm going to work on cabling for aerators this afternoon. I've got electrical parts for the switchgear on order again (they lost my order the first time). An one aerator motor is in Monroe being rewound. Thanks, David Nichols WWTP/Collections/Distriibution/Cross Connections ORC Town of 0akboro Po Box 610 Qakboro, NC 28129 dnichols@oakboro.com 704-984-0320 cell 704-485-4613 office 704-485-2439 fax ----original Message ----- From: Sifford, Barbara[rnailto:barbara.siffard@ncdenr.gov] Serit: Wednesday, April 13, 2011 03:08 PM To: dnichols@oakboro.com Subject: RE: I'll think about the issues and talk to you tomorrow. I was teaching class yesterday. We received notice today that the NC House has decided to close the MRo and all positions in DENR will be eliminated as of July 1. This has to go to senate and the Governor but who knows now what is happening, From: dnichols@oakboro.com [mailto:dnichols@oakboro,comj Sent: Tuesday, April 12, 2011 8:39 AM To: Sifford, Barbara Cc: Branch Larry• Hoishouser Ross Subject: Barbara: Help! t'rinaii.o ;boro.carn/edgedesk/cgi-bi➢/viewmail.exe?id=016a1cacc467e2 DENR-WATER �1 POINT SOURCE 7 7dde77ae.,. 6/7/2011 ly last week we started to show the needed improvement in effluent ammonia: 6.0, 1 and 8.1 mg/L. influent ammonia greater than 100 mg/L. We were augmenting about 40 mg/L of ammonia everyday. Bad news: about Thursday of last week our aeration basin DO dropped to 0.3mg/L and has hovered there since. I was away at Well school when this happened. Monday morning early Leon and cleaned all our aerators which are running well but this hasn't helped. The plant has stopped using alkalinity which hovers at 1Q0mg/L. Our effluent B©D's are running a little high as well. The only huge oxy onable explanation I have is sttnteone is sporatically dumping into our collection system something wi demand. I'm waiting for the influent BOD numbers. We aren't set up in house for COD. We are working as quickly as possible to rehab the second aeration basin to get some more DO capacity. o three we are operating gave D0's over 3.0mg/L a few weeks ago. Do you have any suggestions on tracking down our DO problem? Should we s from the collection system and try to track down the source? Thanks for any help you can give. David Nichols WWTP/Collections ORC Town of Oakboro P© Box 610 Oakboro, NC 28129 dnichols"aoak.boro.com 704-984-6320 cell 704-485-= 613 office 704-485-2439 fax d COD samples ENR-WVkTE.E ItTSOUK, f.oa boro.cornledgebi.n viev, 1 exe?id=416a1cacc467e237c87dde77ae... 6/7 2011 Iscrakboro.co To: Sifford Barbara <barbara.siFfordncdenr.gov> Cc: Branch Larry <IbranchQoakbaro.comn, Holshouser Ross <rholshousertoakbo Date: Sunday, April 17, 2011 ©8:42 am Subject; Re, Oakboro WWTP Attachments; Barbara: Knock on wood, I think we are turning the comer. itt1 a lot of long days and hard work, we were able to start filling aeration basin #2 Friday night and tumed on two aerators Saturday morning, The basin Isn't full yet and we still need to work on the third aerator which is being rewound, but the situation is looking up, Sunday morning the basin DO is 2.4mg,/L, we are using alkalinity again and unoffical ammonia on an effluent grab is 3,6rng/L not quite in summer compliance limit but close, Thanks for your heip and support. David Nichols WWTP/Collections/Distribution/Cross Connections ORC Town of ©akboro P© Box 610 ©akboro, NC 28129 dnicholsgoakboro,com 704-984-0323 cell 704-485-4613 office 704-485-2439 fax Original Message -- From: Sifford, Barbara[malIto:barbara,sifford@ncdenr,goyj Sent: Wednesday, April 13, 2011.03:08 PM To: dnichols@oakboro.com Subject: RE: I'll think about the issues and talk to you tomorrow. I was teaching class yesterday. We received notice today that the NC House has decided to close the MRO and all positions in DENR will be eliminated as of July 1. This has to go to senate and the Governor but who knows now what is happening. From: dnichols@oakboro.com [mailto:dnichols@oakboro.comJ Sent: Tuesday, April 12, 2011 8:39 AM To: Sifford, Barbara. Cc: Branch Larry; Holshouser Ross Subject.: Barbara: Help! Good news: This is with DENR-WATER s POINT SOURCE lust week we started to show the needed improvement in effluent ammonia: 6.0, 15 and 8.1 mg/L. uent amrtaonia greater than 100 mgt.. We were augmenting about 40 mg/L of ammonia everyday. Bad news: about Thursday of last week our aeration basin DO dropped to 0.3nag/ L and has hovered there since. I was away at Well school when this happened. Monday morning early Leon and cleaned all our aerators which are running well but this hasn't helped. The plant has stopped using alkalinity whichhovers at 100mg'L. Our effluent BOD's are running alittle high as well. The only reasonable explanation l have is sonaeone is sporatically dumping into our collection system something w huge oxygen demand. I'm waiting for the influent BOD numbers, We aren't set up in house for COD, il.oakboro.comledgedeskcgi-bin/vieu° il.exe?id=O16a l cacc467e237c87dde77ae... 6/7'2011 orking as quickly as possible to rehab the secot e we offing gave DD's over 3.4mg11 a few weeks ago. Do you have any suggestions on tracking down our DO problem? Should we start puling and COD samples from the collection system and try to track down the source? Thanks for any help you can give. David Nichols WWTP/Collections ORC Town of Qakboro PC Box 610 Dakboro, NC 28129 dnichols@oakboro.com 704-984-0320 cell 704-485-4613 office 704-485-2439 fax http %/m 0 basin to get soste more DO capacity. However the DE NR-WWT ; P©G!T SOURCE ro.co edgedesklcgi-bin viewmail.exe?id=o1.6a1cacc467e237c87dde77ae,,. 6/7/2011 Eram m __cl,bro ccarrs«cdnlcholsCoakboro.corn->-- To: Sifford Barbara <barbara.siflordencdenr.gov> Cc: Branch Larry <Ibranch@oakboro.com>, Holshouser Ross <rholshouser©oakbor,.com> Date: Saturday, April 23, 2011 01:00 pm Subject: Oakboro WWTP nitrification Attachments: Barbara This week our effluent ammonia results were 2.1, 1.0 and <1.0 mg/L N. Woo© h000! I am taking extra composite samples for the rest of the month to factor into our average but it will still be on the edge of 3.0 mg/L summer compliance. I think 7 weeks is pretty good recovery time considering 10-15 C water temps. The second aeration basin helps tremendously. Our DO stays in the 3-4mg/L range. Our aerators are still clogging and must be cleaned weekly. Settling is much much improved. We had a moderate storm yesterday that didn't phase the plant. I included ciariifier repairs in my 2011 budget proposal. I have my fingers crossed. I want to get the town board down to the plant and explain how it works and why the clarifiers are so important. Thanks for your help. David Nichols WWTP/Collections/Distribution/Cross Connections ORC Town of Oakboro PO Box 610 Oakboro, NC 28129 dnichols@oakboro.com 704-984-0320 cell 704-485-4613 office 704-485-2439 fax E VR-WATER QUALIi O NT SOURCE BRANCH http://mail.oakboro.cam/edgedesk/cgi-binlvieu 7„e ;e` id = 16a1cacc467e237c87dde77ae... 6/7/2011 From: dnichoisapakbordcom !cdnEcholsElpoakboro.com>, To; Sifford Barbara <barbara..s'EffordOncdenr.g v> Cc: Branch Larry <1branchoakboro.com>, Holshouser Ross <rholshouser@oakboro.com> Date: Sunday, May 01, 2011 10;13 am Subject: Oakboro WWTP nitnfication Attachments: Barbara: This week our effluent ammonia stabilized around 0.1 mg/L. It took 7 weeks, or just over 3 minimum SRTs of 15 days, just what the microbiology kinetics predict. I did extra sampling but the monthly average was 4.0 mg/L so we are still out of compliance for April (limit 3.0 mg/L). We are still having DO dips but not as severe or prolonged with the extra aerators. We have another aerator and switchgear repaired and ready to install as soon as Tommy is available with the backhoe to set it in the basin. This week I ordered 10 tons of lime to give us a consistent supply. We are adding 100-400 lbs per day to keep the alkalinity at 100 mg/L. This keeps our pH at 7.0. This is where I have heard as minimal for nitrification. Can we drop a little lower to save cost? What is your experience? We have started a program of composite sampling in our collection system to isolate the major sources) of our ammonia. 40 mg/L influent just seems too high for domestic with our HU. Early indications are the majority is from the Locust/Stanfield force main. We are starting at the bottom of the tree trunk and working back testing each branch. Do you have any suggestions? We are hoping on cooperation from Locust/Stanfield. We do not have an enforceable SUO or a pretreatment program. These are on my long term TO DO list. Thanks for your help and patience. David Nichols WWTP/Collections/Distribution/Cross Connections ORC Town of Oakboro PO Box 610 Oakboro, NC 28129 dnichols@oakboro.com 704-984-0320 cell 704-485-4613 office 704-485-2439 fax DENR-WATER QUALETY POINT SOURCE BRANCH http://mail.oakboro. comiedgedesicicgi-bin/viewmail .ex e?i d=016alcacc467e237c87dde77ae.., 6/7/2011 STATE OF NORTH CAROLINA DEPARTMENT OF STATE TREASURE State and Local Government Finance Division and the Local Government Commission JANET COWELL TREASURER July 15, 2011 The Honorable, Joyce H. Little, Mayor Town of Oakboro PO Box 610 109-A N. Main Street Oakboro, North Carolina 28129 Re: Town of Oakboro - 82,019,292 Wastewater - Revolving Loan Dear Mayor Little: T. VANCE HOLLOMAN DEPUTYrREA.SURER ,The Executive Committee of the N.C. Local Government. Commission on July 12, 2011 formally approved the above -referenced Revolving Loan in the amount of .$2,0.19,292 for a term of twenty (20) years, The rate as established under this program for the respective loan, State or Federal, is not to exceed. 4%. The above -referenced application is subject to the five- day appeal period in G,S. 159-4(b). We are pleased to have had this opportunity to serve you. Sincerely., 6„) T. Vance Holloman, Secretary Local Government Commission TVH/jinl cc: Ross Holshouser Town Administrator Don Evans State Revolving Loan and Grant Program AEI 09 2011 R-WATER QUALITY POINT SOURCE BRANCH 325 NORTH SALISBURY STREET, RALEIGH, NORTH CAROLINA 2760.3-1385 Courier #56-20-45 Telephone: (919) 807-2351 Fax, (919) 807-2352 Physical Address: 4505 Fair Meadow Lane, Blue Ridge Plaza, Suite 1.02, Raleigh, NC 27607 Website, www..nctreasurer.com An Equal Opportunity/Affirmative Action Employer Town of Oakboro Sewer Fund 2011-2012 Budget ER FUND EXFENDITURES Page 2 of 3 0101.1290 000 4565 0489 RED°1E:11'" 4 UEQUF.STF ;) ratbl , .lt c: ! 1. lslttlt \favor tl>boro Box (?10 North C'altctllrt:�1°C vor Little: low" 7rts found NCDENR Notice a; f`Virtl4ttt n and A Peitalty 1. 4 2 ! 5. ':{own of () klm Starter (.`}uttty Case No, 1:. V-201 1-0191 Dee 1:%tinan this '14 Pursuant to 143 15 yn:o{. been (1)violation of( .14-2131()and \R 3 \( Permit No, State it 43 33 A6a n eG solids,. f(>T\£ C J£ 'E A 1v Enforcement costs,. TOT \C &\LA/\ƒ 9CE ccy,m£ d() and 21mo11 lmdns0(( S.143 15,1( s of receipt of this notice, Submit payment of the pe. Payment should be made cl Resources (do not include waf enforcement action for any contt Please subunit payitrertt to the atte t do one of the foil rder of Payment of the penalty will not foreclose iolati.on(s). Point Source Compliance/Enforcement Unit Division of Water Ctrality 1617 Mail Service Center Raleigh, North Carolina 27 9 617 O1 equest for renis g a detailed justilticatiou for such request: Please be aware that a request for consiclerr iic>rt of`the five. facto s listed below as they may relate to the reasonableness of the amount of the penalty a Requestin , re tt tssic n is tncnt the proper procedure for contesting, whether the violitticnza s} occurred or the accuracy of any of tf e f rctual staters ents eonttnitted in the civ=iI penalty assessment: document. Because a remission request i:rtrecicsses th.e option of an administrate hearin , such a request. must be accompa tb,.lt..nca f nc.tlttnl c y you a factors and submit it ten tlto. l+ rcnmssicoi request ,d statement that beam ri C ill b lrlg neeess: 7 dispu shou1d be re below: In determining the c.orlsidered: dvcrternt c r t result clfac rt of your rec C(lnl"r'al l,ssl ;?l: y tot the (.".ell inn o request ret rission, y oo must complete arid strlr ritit the en losc.d ''' <iiv cr of Ri Pub to an ;ative l-learir and Stipulation of Facts" orm ithin thirty (30) d.a> s of receipt )t this e Division of Water Quality also requests that you complete and suhmit tl e enclosed for .Remission Request." Both tcirrns should be submitted to the follo\\Tir Source C.`oi ipli -4 'Water t)ri tlity 7 Mail. Service Center i,h, North Carolina. ? 769 adniin You must file the of this notice. Ape. during normal office fv_ii.irs. Friday between the hours of he tiled by facsimile. (tat) or electro original, one (l) copy and a filing Office of Adniinistrat. Hearings \v transmission. Yati should contact the Office o ffi1ini fee and=''ci the details of the filing 1i.roce.ss, for the Office of Administrative f leis in:s are as fc OR 7 'or an :r dministratid e hearing sm ith the 0 . •1° statemen ou may o Office of Ad 6714 Mail Service C or Raleigh, NC 27( l el: (919) 4 1-3000 Fax.: (91.9) 4 1-31O0 Hearings attached asc s:sn ain the petition form f cc o.f Administrative I:lear en it is received rn iling fee is rcclu en t"7`t lusiratws loves: d i°n doc_uinen e C)fticc o IIthi.n thirty (30) days of Administrative accepts filirs Monday t. ictl state holidays. The petitic t� r fictions) - provided the NC;GS 5150l3- 3,2) is reed\ ec ing.. the faxed or electronic questions regarding and telephone :u a rings: he served on 1).1:rN1as follows: s: Please be advised ƒS GOed ed§e9 n fth a K I t he :% ƒoral Office Fi! wf attachments em ly kn en G the rev d r 11Note1tiNt9.201...14)191.: tlItte" (Ptirametter • • etteett 002 3127-4112(1.1. 1801) •• 3127,4121111 . 'TSS 3/27-412111 11 Idn.itrpgery —002 t1 11 yArnrriogirk. nittggen. -.A.trimartia nitro:gen. 4.1201:1 ektragortia. kit:gegen 1)griatekeriteil penalty gkeessolegt • rotoitj,ittiit. liNtgqa•g•P•.) • • • :4;5: 1110(weekly: average) 59101rtgll (Weekly •average) • • 19 tIIL 11 r•• .... tO trtgil (Weekly. a•yeragel • :.3t0 trigel 111 1agerag.e) COUNTY OF S"FA R OF LT Y AGA OF 0. KBURO l NO, N('O)043 5 'Hayti lcez tsse:sed ci document of the Division of the. cis°i1 pemi.lties, ilrae hetehy waive Ktipulate that the facts war° . as alleged ew`idence presented ire support of renns of Water °ithi.n 3() days iota r-ec'ed after 30 d This the day of DI PAR F . II:.N T ()E F:NVIR0N M N.!. AND N,,\.1 I»R 1L RE .1)1TRt ES E FIF=}ARfNG 'NI) `l f Pt_., L.`TI()N (F FA( FILF NO. I..V-2011-0191. 4a.74 for tzolr.tion 2011, the undersine o adtttstr tti e hearing document, The undersi nust be submitted toy tl e F)ircc.tc$t rat the ment. No new e\Widence ire support of' naent.,. AF)I aRF. 1 JUSTIFI(: TTON 7OR REMI ON RE OC ST Assessed Party. Count=: Permit Number: 'SC+Qtt435 Amount Assessed. SS'dfi.74 Please use this form when requesting of this c Waiver of Right to an )1417. 1. penalty. You should attar form to request rem 'at you beliiev"e, support vour° request and are necessary Director to consider in evaluating your request for remission. Please he aware that a request for si.on is limited to consideration of the law-e 1*rc.tors listed below as they may relate to the reasonableness of ion is r c t ti e: proper procedure for ontestin4 nt tai` the civil penalty assessed, viol t document, t:U'l l SLITw d or the aceura § 14313.282. `e of tlae l:oliowin five factors applie , Please check: each fa. your ease and provide a detailed e planat.ion. inc:ludin copies of supportinl - additional pages as needed), one"._o?'z the detrirac.r the, y`iolat something went CO? the el laeidp t; assessment isse sse I r t rl_pcm lrevent pay1 n!: r N. contained it penalt ted only applies to e factor NORTH CAROLINA DIVISION OF WATER QUALITY Violator: Facility: Count): Case Number: own f Oakboro rboro WWTP Stanly LV-2011.-0191 Permit Number: NC0043532 ASSESSMENT FACTORS I) The degree and extent of harm to the natural resources of the Staite. to the public health, or to private property resulting from the violation; No harm has been documented. The facility violated the \veekly average BOD and suspended effluent limitations for the period of M.arch 27-April 2, 2011_ Because the BOD dilution was in adequate to provide an actual BOD value, it was reported as >18.4 ing/1, Total suspended solids (TSS) for the same period was reported as 60,43 mgli. Both reported values would be predicted to have water quality impacts on the receiving stream for lowered dissolved oxygen and turbidity. Ammonia nitrogen was in excess of permit limitations for the month of April 2011. Noncompliance for ammonia nitrogen was not assessed a civil penalty (See Assessment Factor 5). 2) The duration and gravity of the violation; The violations lasted for the week of March. 27-April 2, 2011. The facility returned to compliance the week of April 3-9, 2011. BOD Was reported at >36% over the permit limit and 'TSS reported at 34% over the permit limit, The facility experienced poor sludge settleablility and inflow/infiltration problems that led to the noncompliance according to the Town's response to NOV-2011.-EV-0282. The response also stated that the facility only had one operable clarifier at the time the violations occurred (NPDES permit description requires three operable clarifiers). Only one ammonia limit violation exceeded 20% of the permit limit. 3) The effect on ground or surface water quantity or quality or on air quali No effect is expected on ground water or air quality. Surface wateers may have been impacted by causing lower available dissolved oxygen and increased turbidity downstream of the facility. The cost of rectifying the damage; The cost is unknown. 5) The amount of .money' saved by noncompliance; The Town was awarded a revolving loan from the Executive Committee of the NC Local Government Commission on July 12, 2011 for $2,019,29.2,00 to make necessary repairs to the collection system to reduce inflow/infiltration.. The Town approved funds for the rehabilitation of one of the out of service clarifiers since the noncompliance occurred in April 2011. The 'Town addressed the ammonia nitrogen noncompliance in a timely manner and has spent considerable funds ($13,071 plus $791day for chemical. addition and additional aeration) to correct the problem including changes in WWTP operational procedures. n exact monetary amount of savings cannot he determined for the previous lack of maintenance of the collection system and WWIP facilities% 6) Whether the violation was committed willfully or intentionally; The violation does not appear to he IPS'i !Ifni or intentional: 7) The prior record of the violator in complying or failing to comply oath programs o er which the Environmental Management Commission has regulatory authority; and Case Number FDCSerip_--tion 1 V-2011-0106 Remission requested ease open 17 V -20 1 1 -015 1 Remission requested case open laV -20 1 1-01 77 Remission requested case open 8) The cost to the State of the enforcement procedures. Staff preparation of enforcement package: 1 hour at $33.1 9/hour SWP Regional Supersisor re 1 hour at $38,55/hour Clerical Support: 1 hour at SI 5.00/hour Total: $86,74 Date RO Supervisor Disision of Water Quality MONITORING REPORT tMRI'VIOIu4TIONS for: PER T; NCOO4 2 FACILITY: Town of Oakboro - Oakboro WWTP COUNTY: Stanly Report Date. 07111/11 Page: 10 of 11 REGION; Mooresville Limit Violation MONITORING 0UTFALL REPORT PRI LOCATION PARAMETER 04 .2011 002 Effluent 600, 5-pay (20 Deg. C) - Concentration VIOLATiiON DATE FREQUENCY 04/02l11 3 X 'week UNIT OF CALCULATED MEASURE LIMIT VALUE OVER LRMIT VIOLATION IYPE tdlt 13.5 18A VIOLATION ACTION 36.3 Weekly Average Exceeded None 04 -2011 t7C32 Effluent Nitrogen, Ammonia. Total (as 04d02/11 3 X week mg/I 9 15.03 67.04 Weekly Average Exceeded None N) - Concentration 04 -2011 002 Effluent. Nitroe en, Ammonia Total (as 04/09/11 3 X week mgl'I 9 9,6n6 7,33 Weekly Average Exceeded None ' N) - u xncentt ation 04 -2011 002 E iuerlt. Nitrogen, Ammonia Total (as 04/16/11 3,X week mg/l 9 9.33 3.63 Weekly Average Exceeded None N) - Concentration 04 -201'1 002 Effluent Nitrogen, Ammonia Total (as 04/30/11 3 X week mg/I 3 3.39 13.06 Monthly Average Exceeded None N) - Concentration 1'04-2011 002 Effluent Solids, Total Suspended - 04/02/11 3 X week, mg/I 45 60.43 34.'3 Weekly Average Exceeded None Concentration