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Dennis Jones <br />Seneca Coal Company <br />Page 2 <br />August 16, 2001 <br />2. SCC provided a good discussion on groundwater quality trends and comparative analysis <br />with water quality standazds. On several occasions, samples from groundwater monitoring wells <br />exceeded the Basic Standards for Ground Water provided in CDPHE Regulation No. 41. <br />Specifically, SCC indicates that pH, boron, iron, and manganese exceeded the applicable <br />CDPHE standard. <br />Please note that the Division has adopted changes to our surface and groundwater monitoring <br />Rules as of March 21, 2001 (refer to Rule 4.05.13). The rule changes incorporate compliance with <br />applicable groundwater standards at established points of compliance. The Division is in the process <br />of implementing the point of compliance rules. Additional information regazding downgradient <br />groundwater quality and/or additional groundwater monitoring points maybe required to establish <br />appropriate points of compliance. <br />If you have any questions concerning the Division's review of the 2000 AHR, please contact me. <br />Sincerely, <br />~~~ <br />Michael P. Boulay <br />Environmental Protection Specialist <br />c: Sandy Brown <br />