8.1. SR 03-18-2013 - Laserfiche WebLink

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Pennit Issued:. Elk Aver W WTP Page 21 Per nit Expires: Permit#:MN0020788 DRAFT DRAFT DRAFT DRAFT DRAFT DRAFT DRAFT DRAFT DRAFT DRAFT , Chapter 4. Non-waste Streams--Mercury Management Plan 1. Mercury Pollutant Minimization Plan 1.2 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 or mercury as well as potential mercury reduction options. Guidelines for developing aMMP are detailed in this section. 1.3 The specific discharge limits for mercury assigned to this facility are detailed in the limits and monitoring section of this permit. Information gained through the MMP process can be used to reduce mercury concentrations to achieve the specified discharge limit. If the facility is currently achieving this limit,the information gained through the MMP can be used to further reduce mercury in the facility's discharge. 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. 1.4 The Permittee shall submit a Pollutant Minimization Plan by 180 days after permit issuance. At a minimum,the MMP must include the following: a) A summary of mercury influent and effluent concentrations and biosolids monitoring data using the most recent five years of monitoring data,if available. b) Identification of existing and potential sources of mercury concentrations andlor loading to the facility. As appropriate for your facility,you should consider residential,institutional,municipal,and commercial sources (such as dental clinics,hospitals,medical clinics,nursing homes,schools,and industries with potential for mercury contributions). You should also consider other influent mercury sources,such as stormwater inputs, groundwater(inflow&infiltration)inputs,and waste streams or sewer tributaries to the wastewater treatment facility. c) An evaluation of past and present WWTF operations to determine those operating procedures that maximize mercury removal. d) A summary of any mercury reduction activities implemented during the last five years. e) A plan to implement mercury management and reduction measures during the next five years. 1.5 In addition to the sampling required in the Limits and Monitoring section of this pennit,the Permittee shall sample effluent from the total facility discharge station for Dissolved Mercury and TSS on a quarterly basis throughout the life of this permit.The sampling method is a concurrent grab sample for the two parameters. Dissolved Mercury shall be analyzed using an EPA approved low level mercury analysis method. Samples shall be taken at any time during the calendar quarter and reported on the custom supplemental form provided by the MPCA. The custom supplemental form must be submitted with the DMR for the last month of each quarter. L6 The Permittee shall attain compliance with final mercury limits by permit expiration;