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Permit Issued: Elk River WWTP Page 22 <br /> Per njt Expires: Pertnit r:MN0020788 <br /> DRAFT DRAFT DRAFT DRAFT DRAFT DRAFT DRAFT DRAFT DRAFT DRAFT <br /> Chapter 5. Phosphorus Management Plan <br /> 1. General Requirements <br /> 1.1 Phosphorus is a common constituent in many wastewater discharges and a pollutant that has the potential to <br /> negatively impact the quality of Minnesota's lakes,wetlands,rivers and streams. Therefore,.phosphorus <br /> discharges are being carefully evaluated throughout the state. <br /> The Permittee is required to complete and submit a Phosphorus Management Plan(PMP)to the MPCA as <br /> detailed in this section. If the Permittee has already submitted a PMP,the Permittee must update that PMP and <br /> submit the updated PMP to the MPCA as detailed in this section. <br /> While the PMP does not require specific reductions at this time,the IVIPCA strongly encourages the Permittee to <br /> identify and eliminate/reduce sources of phosphorus to,and improve phosphorus management within,the <br /> permitted wastewater treatment facility. However,be aware that new or expanding discharges may be required <br /> to actively manage and reduce phosphorus,including complying with new or tighter phosphorus effluent limits: <br /> For additional information about completing the PMP below,please contact the MPCA's Customer Assistance <br /> Center at(800)646-6247. <br /> 1.2 The Permittee shall submit a Phosphorus Management Plan(PMP)or an updated PMP to the MPCA 180 days' <br /> prior to permit expiration. <br /> At a minimum,the PMP shall include the following: <br /> a. A summary of influent and effluent concentrations,mass loadings,and percent removal calculations using the <br /> most recent five years of:monitoring data,if available. <br /> b. Identification of existing and potential sources of elevated phosphorus concentrations and/or loading to the <br /> facility. As appropriate for the facility,consider residential,institutional,municipal,and commercial sources. <br /> c. An evaluation of past and present WWTF operations to determine those operating procedures that maximize <br /> phosphorus removal. <br /> d.A summary of any phosphorus reduction activities implemented during the last five years. <br /> e.Phosphorus management and reduction goals for the next five years using the information collected in A <br /> through D above. <br /> f.A plan to implement phosphorus management and reduction measures during the next five years. <br /> Chapter 6. Surface Discharge Stations <br /> 1. Requirements for Specific Stations <br /> 1.1 SD 001: Submit a monthly DMR monthly by 21 days after the end of each calendar month following permit <br /> issuance. <br /> 2. Sampling Location <br /> 2.1 Samples and measurements required by this permit shall be representative of the monitored activity. <br /> 3. Surface Discharges <br /> 3.1 Floating solids or visible foam shall not be discharged in other than trace amounts. <br /> 3.2 Oil or other substances shall not be discharged in amounts that create a visible color film. <br /> I <br />