8.1. SR 03-18-2013 - Laserfiche WebLink

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Permit Issued: Elk River WWTP Page 19 Permit Expires: Permit#:MN0020788 DRAFT DRAFTDRAFT DRAFT DRAFT DRAFT DRAFT DRAFT DRAFT DRAFT Chapter 2. )Biosolids Land Application 7. Monitoring Requirements 7.2 At a minimum,biosolids must be monitored at the frequencies specified in Table 3 for the parameters listed above,and any pathogen or vector attraction reduction requirements in Minnesota Rules,pts.70411300 and . 7041.1400 if used to determine compliance with those parts. Table 3 Minimum Sampling Frequencies Biosolids Applied* Biosolids Applied* Frequency (metric tons/365-day period) (tons/365-day period) (times/365-day period) >0 but<290 >0 but<320 1 >=290 but<1,500 >=320 but<I,650 4 >=1,500 but<15,000 >=1,650 but<16,500 6 >=15,000 >=16,500 12 Either the amount of bulk Biosolids applied to the land or the amount of biosolids received by a person who prepares biosolids that are sold or given away in a bag or other container for application to the.land(dry weight basis). 7.3 Representative samples of biosolids that are transferred to storage units and are stored for more than two years shall be analyzed by methods specified in Minnesota Rule pt.7041.3200 for each cropping year they are stored for the following parameters: arsenic,cadmium, copper,lead,molybdenum,nickel, selenium,and zinc. Mercury is specifically NOT included in the stored biosolids analysis because of the short holding time'[28 days]required between sampling and analysis. 7.4 Increased sampling frequencies are specified for the parameters listed in Table 4. Sampling at a frequency at twice the minimum frequencies in Table 3 is required if concentrations listed in Table 4 are exceeded(based on the average of all analyses made during the previous cropping year). Table 4 Increased Frequency of Sampling Parameter(mg./kg dry weight basis) Arsenic 38 Cadmium 43 Copper 2354 Lead 420 Mercury 28 Molybdenum 38 Nickel 210 Selenium 50 Zinc 3750 8. Records 8.1 The Permittee shall keep records of the information necessary to show compliance with pollutant concentrations and loadings,pathogen reduction requirements,vector attraction reduction requirements and management practices as specified in Minnesota Rules;pt. 7041.1600,as applicable to the quality of biosolids produced. 9. Reporting Requirements 9.1 By December 31 following the end of each cropping year,the Pernuttee shall submit a Biosolids Annual Report for the land application of biosolids on a form provided by or approved by the MPC A. The report shall include the.requirements in Minnesota Rules,part 7041.1700. I I