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To: Mr. Peter Hays <br />Date: March 21, 2022 <br />Page 8 <br /> <br /> 20220314_DRMS_Adequacy_Review_Response_MASTER.docx <br /> <br />DUNN PIT NEW PERMIT APPLICATION, EXHIBITS F, G AND <br />APPENDIX D REVIEW MEMO, FILE NO. M-2021-059 <br />Comment 6 <br />All groundwater sample results need to be compared to the Water Quality Control <br />Commission’s (WQCC) Regulation No. 41 – The Basic Standards for Groundwater (Reg <br />41) and the most conservative values in Tables 1 thru 4 for all analytes listed for minimum <br />of five consecutive quarters. The sample results from the June/August 2021 sampling event <br />only compared results to WQCC Reg 41 Tables 1 and 2. Table 3 of Reg 41 are agriculture <br />standards which contain a few analytes that Tables 1 and 2 omit. <br />Attachment 15 Revised Initial Water Quality Sampling Result Tables do not appear to have <br />been updated to reflect the most conservative values from Tables 1 through 4. An example <br />is Aluminum, it has a Table 3 concentration of 5 mg/l dissolved. Additionally the footer has <br />not been updated as indicated in the response. Please update the tables. <br />Response 6 <br />The updated Initial Water Quality Sampling Results Tables have been updated to reflect <br />the most conservative values from Tables 1 through 4 and the footer has been updated. <br />Please see Attachment 8. <br />Comment 15 <br />Please update Table 2 to include the WQCC Reg 41 concentrations each analyte is <br />compared to. Table 2 shows the standard for Iron to be 5 mg/l however the most stringent <br />standard is 0.3 mg/l listed in WQCC Reg. 41 Table 2. Please update the table. <br />Response 15 <br />Table 2 has been updated to include the most stringent standard for Iron, 0.3 mg/l. Please <br />see Attachment 9. <br />Comment 16 <br />Please provide copies of the completed groundwater data sheet(s) for each well sampled. <br />In the future the Division will require submittal of these sheets along with other sample <br />data. <br />Why are there no field parameters recorded during well purging on the field sheets? If <br />parameters were recorded please update the field sheets.