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-- ~ • • III _1111111111111 I_II 3 <br />ADCO CONSULTIiVG RECEIVED ( <br />MAR 2 8 1994 CHEROKEE INVESTMENTS. INC. <br />2090 FP.S7 104TH AVENUE. SUITE 305 <br />7HOIdJTON. CGLOR4D0 80233 <br />Division of PAinerels & Geology ~303~ 450-2209 <br />March 1, 1994 <br />Mr. J. Peter Lau:t, Solid Waste Section <br />Hazardous Materials and Waste Management Division <br />Colorado Department of Health <br />4300 Cherry Creek Drive South <br />Denver, Colorado 80222-1530 <br />Re: Waiver of Operational and Post-Closure Gro~_>ndwater Monitoring <br />Sandy Acres Inert Fii1 - 132nd & U.S. 85, Adams County <br />Dear Peter: <br />The owner and the operator of the above referenced facility hereby <br />request a waiver on ground water monitoring during the site's <br />operation and after closure. Briefly, this facility is a 42+ acre <br />parcel, where sand and gravel mining is being completed. The <br />facility received approval from the both the MLRB (M80-110) and the <br />County (Case =125-85-C) to utilize clear. inert fill in the <br />reclamation plan. Inert material had been delivered to the site, <br />b~_tt to date no filling has been undertai<en below the water table. <br />Tile material has been stored in a separate area and could be <br />removed from the site, if necessary. <br />When CDH revised their opinion on the exemption status of inert <br />fill, the County notified the owner and operator of the change in <br />policy. Later wtlen CDH issued their 10/20/93 draft guidance <br />document, the County notified the owner that the operation could <br />proceed under County regulations, bttt that the status of <br />groundwater monitoring should be ascertained from CDH (letter <br />attached). Therefore, I am initiatir_g this waiver request. As <br />much as possible, I nave followed the format ou*_lined in the Solid <br />waste Regulations. I am also submitting data from the County and <br />MLRB applications for your information to help you review the case. <br />In summary, the justification for the waiver is the fact that the <br />inert fill does not degrade groundwater as determined by CDH's <br />definition, and that tiie filling will be controlled so that no <br />groundwater monitoring is necessary either now or in the future <br />during the post closure period. Since this is first, or one of the <br />first of such requests, I realize that additional information may <br />be necessary, so if anything else is needed please let me know. <br />Sincerely, <br />~N. in <br />cc: Adams County Planning, c/o Craig Tessmer <br />Cooley Gravel Company, c/o Robert Laird <br />Colorado Sand and Gravel, c/o Bob Siegrist <br />Division of Minerals and Geology, c/o MLRB Permit ~rM80-110 ,~ <br />