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• <br />Er~vl roan? er~~, I r~C. <br />LARRY E. O'BRIAN 7985 VANCE DRIVE, SUITE 205A <br />FOUNDER ~r,n' L C ~ n~ ~ ARVADA, COLORADO 80003 <br />YL ` - 303-423-7297 <br />FAX 303-023-7599 <br />September 29, 2006 <br />Division of Minerals and Geology <br />Mr. Richard M. Wenzel, III RECE-VED <br />Minerals Section - North ~l'T 0 97A <br />1313 Sherman Street, Room 215 ~ Division ~6 <br />Denver, Colorado 80203 fl" of Reclamation, <br />M'n'n9 and Safety <br />Re; Thompson Properties <br />Thompson Resource MLR Permit # - M-1983-102 <br />~~Si~ Cf~~ 9/05/2006 - Inspection report response ~ <br />Dear Rick: <br />On behalf of my client Thompson Properties I am responding <br />to your September 5, 2006 inspection report. In your report you <br />have listed 3 problems or possible violations that need to be <br />addresses in the near future. In this letter I will address the <br />first of those concerns, the alleged ground water exposure <br />problem. I will respond to the other two items under separate <br />cover. <br />The pond noted in the inspection report is one of the water re- <br />circulation wash ponds used by the concrete batch plant operator <br />to recover and reuse water associated with the batching opera- <br />tions. Two pits were dug into the shale bedrock, ready-mix truck <br />are washed out into one and eventually the excess water flows <br />into the second pond. The fines settle out in this pond and <br />makes the water usable in the _batching process. When excavated, <br />the holes did not fill with water and it was not until truck <br />washing began that the pond began to fill with water. Some may <br />have come from storm events but most is a result of the truck <br />washing operations. Therefore this pond is very much like a <br />reservoir and does not intercept ground water. <br />To confirm this test hole was excavated approximately 8 feet west <br />of the water filled pond noted in your inspection report to see <br />if groundwater was encountered. This test hole was dug to 4 feet <br />deep, the approximate bottom of the wash pond and photos were <br />_-;.~ -- ~~, s-~.~_~ <br />