4.4. SR 03-20-2017 - Laserfiche WebLink

Home Browse Search

Permit Modified: October 16, 2014 Elk River WWTF Page 12 Permit Expires: June 30, 2018 Permit #: MN0020788 Chapter L Compliance Schedule 1. Compliance Related Construction Schedule 1.10 The Permittee must initiate operation of the updated facility on or before December 31, 2017. The Permittee must notify the MPCA in writing within 14 days after the actual initiation of operation date. 1.11. The Permittec must attain compliance with the final 2,430 kilograms per year (kg/yr) Total Phosphorus (TP) and 1 milligram per liter (mglL) TP limits. The kg/yr limit is a.12 month moving total and the mg(L limit is a 12 month moving average concentration limit and must be met as soon as possible, but no later than December 31, 2017. 1.12 The Permittee must notify the MPCA in writing at least 14 days before the planned completion of Construction date. The MPCA may complete a final inspection. 1.13 Submit Final Technical Docuements. The Permittec must submit the following to the MPCA within one year after the intiation of operation date: a. An MPCA-approved certification form that is signed by a professional engineer registered in the state of Minnesota stating that the project meets the perfomance standards. b. A revised operation and maintenance manual or a maintenance plan; or a certificate of completion of an operation and maintenance manual on a form prescribed by the MPGA. At a minimum, this plan must include a detailed discussion of operation and controls, maintenance, sampling and analysis, problem mitigation, VOC managment, personnel records and reporting, and safety. This plan must be maintained and updated regularly and made available to the MPCA staff upon request. c. One copy of "as -built" plans and specifications, also known as record drawings, must be submitted in a format approved by the MPGA. The factsheet titled: "Wastewater Treament Facility Construction Record Documents, As -built Submittal Requirements" contains specific information regarding the required format of the submittal. The document is located on the MPCA web page at: http:flwww.pea.state. mn.uslindex.php/view-doctiment.hW?gid=15492. 1.14 Phosphorus limits are to be calculated as follows: "12 -Month Moving Total" is a rolling total. To calculate, for each month multiply the total volume of effluent flow (MG) by the monthly average concentration and by a 3.785 conversion factor to get kg/month. Then add all of the monthly values (kg/mo) during the last twelve months, starting with the monthly total for the month of the correct reporting period. Facilities with a new 12 -Month Moving Total phosphorus limit shal l for the first 1 I months that the limit is effective, indicate'(NR) C 12 months' in the eDMR comments field in place of a value for the 12 -Month Moving Total until the 12th month of monitoring. Chapter 2. Mercury Miniimization. Plan 1. Mercury Pollutant Minimization Plan 1.1 The Permittee is required to complete and submit a Mercury Pollutant Minimization Plan (MMP) to the MPCA as detailed in this section. If the Permittee has previously submitted a MMP, it must update its MMP and submit the updated MMP to the MPCA. The purpose of the MMP is to evaluate collection and treatment systems to determine possible sources of mercury as well as -potential mercury reduction options. Guidelines for developing a MMP are detailed in this section. 1.2 The specific mercury monitoring requirements are detailed in the limits and monitoring section of this permit. Information gained through the MMP process can be used to reduce mercury concentrations. As part of its mercury control strategy, the Permittee should consider selecting activities based on the potential of those activities to reduce mercury loadings to the wastewater treatment facility.