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4.4. SR 09-26-1994 I ~~( ( II Ifi( River . . ITEM 4.4 MEMORANDUM TO: MAYOR & CITY COUNCIL FROM: PAT KLAERS, CITY ADMINISTR..j\T~R 1)( SEPTEMBER 23, 1994 \, l' DATE: SUBJECT: WWTPEVALUATION Attached for your review is a report from the Minnesota Pollution Control Agency (MPCA) regarding the annual evaluation and planning survey for the Elk River Wastewater Treatment Plant. Superintendent Darrell Mack will be in attendance at the Council meeting to discuss this report. A couple of areas of concern are noted in Section 1 and 2 of the report. These areas are being addressed by the Treatment Plant upgrade that is currently under construction. Representatives of MPCA are aware that this upgrade is taking place and totally understand the situation in Elk River. Overall we believe the report to be accurate and fairly favorable. It is appropriate for the City Council to formally accept this report after a presentation and discussion. P.O. Box 490. 13065 Orono Parkway · Elk River, MN 55330 · (612) 441-7420 · Fax: (612) 441-7425 SEP 2 D 1994 . Minnesota Pollution Control Agency September 19, 1994 To Vhom It May Concern: RE: 1993 Annual Evaluation and Planning Survey Thank you for participating in the 1994 Annual Evaluation and Planning Survey process. Ve have completed our review of your survey and enclosed is a report based on your responses and a copy of the survey form for reference. In addition, for all cities which discharge to a surface water, a summary of some of your daily monitoring report data for the last year is also enclosed. . Ve recommend you discuss this report at an upcoming municipal council/board meeting. In some cases, items identified in the report may require immediate attention. At the least, it should help your focus your planning efforts to meet future needs. After the meeting, the mayor should certify that the city council has discussed the report, and submit this certification to the MPCA. possible, this should be done within 30 days of your receipt of the report. >* If Ve believe the AEPS will prove useful for both the municipalities and the MPCA. The individualized report can be used as a planning tool for your municipality's wastewater treatment system. If you need assistance in implementing suggestions from the report, we suggest you contact the Agency or your consulting engineer. Ve are in the process of combining data from all participants into several statewide reports. This process should be completed within the next 60 days. If you wish to receive a copy of the statewide summaries, please contact us after that time. Ve hope the report information will prove useful in planning for the future of wastewater treatment in your municipality. If you need any assistance or have any questions regarding the AEPS process, please feel free to contact me at (612)296-8766 or 1-800-657-3864. Sincerely, . D.u,~ ,~l-~~ Deb Lindlief Operations/Training Unit. Municipal Section Vater Quality Division DL:jmg Enclosures 520 Lafayette Rd. N.; 51. Paul, MN 55155-4194; (612) 296-6300 (voice); (612) 282-5332 (TTY) Regional Offices: Duluth' Brainerd' Detroit Lakes' Marshall' Rochester Equal Opportunity Employer. Printed on recycled paper containing at leasl1O% fibers from paper recycled by consumers. . . . :>:>:> MUNICIPALITY: ELK RIVER This reJ?Ort contains responses to questions you answered in the Annual Evaluatwn and Planning Survey. Although you answered all the applicable questions in the survey, not every answer recieved a response in this report. We provided a response only when an answer indicated that there is an issue which needs resolution. MPCA staff have assigned a point value to the various questions in this survey, with the exception of questions in Section 8, Future Needs. Points are given to responses that indicate that there rray be a problem to be addressed. Each section is worth 100 points. If your system received a score greater than 50 in any section, you should carefully review the reJ?Ort responses for this section to detemdne if your system is operating effect~vely and efficiently. We hope this report proves useful both in planning for future wastewater needs and in resolving current problems. If you need assistance in inplerrenting any of the suggestions in this report or have questions concerning the report or survey process, please feel free to contact the Operations/Training Unit of the MPCA at 1-800-657-3864. :>:>:> SEcrION ONE: SYSTEM LOADINGS AND PERFORMANCE (from your I:MR's) Based on the monthly D.M.R. data you have sutmitted over the last calendar year, the following conclusions can be drawn: Last year, you exceeded your effluent BOD limits at least once. This is a pemdt violation. You should investigate the causes of the exceedence, create a plan to rranage the loading problem and infonn the Agency of your plan as soon as possible. You exceeded 90% of your effluent BOD limits at least once in the last year. Although this is not a permit violation, it indicates your system is reaching the limits of its capacity to treat wastewater adequately. This rray soon lead to nonccnpliance. You should investigate your BOD loading and create a plan to rranage it. Last year, you exceeded 90% of rour effluent solids limits at least once. Although this is not a pemdt =olation, it indicates your system is reaching the limits of its capacity to treat wastewater adequately. This rray soon lead to nonccnpliance. You should investigate your solids loading and create a plan to rranage it. Score for SEcrION 1: 70, WHERE 0 IS BEST AND 100 IS TIlE MAXIMUM. If your score is greater than 50, carefully review the survey you filled out and our report responses for this section to detemdne if your system is operating efficiently. :>:>:> SEcrION 'TWO: TREA'IMENT SYSTEM PHYSICAL mNDITION Your responses to the questions 12, 14, 17, 18, and/or 24 demonstrate your awareness that rrajor repairs or replacement are needed in the next five years. As you are aware, this requires a great deal of planning, including funding, construction, permit modifications, and choosing of a consultant. Score for SEcrION 2: 100, WHERE 0 IS BEST AND 100 IS TIlE MAXIMUM. If your score is greater than 50, carefully review the survey you filled out and our report responses for this section to detemdne if your system is operating efficiently. >>:> SEcrION THREE: mLLECITON SYSTEM Question 28. Review the influent flows into your treatment system to detemdne . if infiltration and inflow are a problem and establish a plan for correcting any problem identified. Score for SECIION 3: 8, WHERE 0 IS BEST AND 100 IS THE MAXIMUM. If your score is greater than 50, carefully review the survey you filled out and our rel?ort responses for this section to determine if your system is operating effic~ently. :>:>:> SECITON FOUR: SLUIx:;E Question 36. Your system needs six months sludge storage capacity in tanks, pits, or lagoons. This will ensure adequate capacity during the winter (when sludge cannot be land applied) and sumner (when crops are present). Please contact Jorja DuFresne at 1-800-657-3864 to determine storage requirements for your system. Question 50. Your responses to this question demonstrate your awareness that rrajor repairs or replacement are needed in the next five years. As you know, this requires a great deal of planning, including funding, construction, pemdt modifications, and choosing of a consultant. Score for SECIION 4: 10, WHERE 0 IS BEST AND 100 IS THE M1\XIMllM. If your score is greater than 50, carefully review the survey you filled out and our reJ?ort responses for this section to determine if your system is operating effic~ently. :>:>> SECITON FIVE: SEPITlGE . Score for SECIION 5: 0, WHERE 0 IS BEST AND 100 IS THE MAXIMUM. If your score is greater than 50, carefully review the survey you filled out and our report responses for this section to determine if your system is operating efficiently. :>:>:> SECITON SIX: TREATMENT SYSTEM OPERATION AND MAINI'ENANCE Score for SECTION 6: 0, WHERE 0 IS BEST AND 100 IS THE MAXIMUM. If your score is greater than 50, carefully review the survey you filled out and our rel?ort responses for this section to determine if your system is operating effic~ently. :>:>:> SECITON SEVEN: FINANCIAL AND ORDINANCE STATUS . The area of sewer service charge systems and sewer use ordinances is carplex and confusing. Municipalities which received funding fran the federal or state construction grants program or the State Revolving Fund (loan program) face certain requirements in the area of ordinances. We have sample ordinances and charge systems which you can use to create your own docurrents. If you have questions concerning ordinances, charge systems, rate setting, or whether you ITn.1st meet the reguirements of specific funding programs, please contact the MPCA Operations/Tra~g Unit at 1-800-657-3864. Question 80.5. Your sewer use ordinance should require annual notification of cost to all users. Users should be notified annually regarding what is encrnpassed in the user charge. Question 81. Pretreatment agreerrents/permits with each significant industrial user should be established wherever a wastewater treatrnent system serves significant industrial users. Significant industrial users have: 1) flows to the system in excess of 25,000 gallons per day or more than five percent of the total flow received at the system; 2) loadings to the system in excess of five percent of the design BOD capacity; or 3) the potential, in the opinion of the pemdttee or the MPCA, to adversely impact the system. These users are usually . . . identified during the MPCA pemdtting process. Pretreatment agreements usually contain limits for the industrial users. Question 82.1. Since you have individual sewage treatment systems (such as on-site septic tanks), your sewer use ordance should deal with such systems. As one aspect of mmicipal wastewater treatment, you should require inspection and maintenance plans for such systems. Question 82.4. When new hares are constructed in your service area, you should consider what is the optirral approach to treating the resulting wastewater. Any new construction should be consistent with your municipality's long-range developlleI1t plans. Score for SECTION 7: 37, WHERE 0 IS BEST AND 100 IS THE ~IMUM. If your score is greater than 50, carefully review the survey you filled out and our reJ?ort responses for this section to detemdne if your system is operating effic~ently. >:>:> SECTION EIGHT': FUTURE NEEDS Question 89. Connection of currently unsewered horres to your treatment system will add flows and loadings ,to your treatment system. If your system does not have capacity for these additional flows and loadings, an expansion will be necessary. In addition, a sewer extension rray be needed. . pemdttee: ELK RIVER Pemdt No: MN0020788 1993 SUMMARY DATA 1-Sep-1994 Influent Parameter Type # of Times Reported # :> 90%- # :> of Design Design FLOW Ave. Quantity 12 o 0 Effluent Months of # > 90% # :> # Not ParClIlEter Type Discharges of Limits Limits Reported --------- ------------- ---------- --------- ------ -------- Pipe # 1 TSS Ave. Concentr 12 0 0 0 TSS Max. Concentr 12 1 0 0 TSS Ave. Loading 12 0 0 0 TSS Max. Loading 12 0 0 0 CBOD Ave. Concentr 12 6 5 0 CBOD Max. Concentr 12 6 4 0 CBOD Ave. Loading 12 1 1 0 CBOD Max. Loading 12 2 1 0 . .