Laserfiche WebLink
March 19, 2004 <br />Mx. Anthony J. Waldron <br />Environmental Protection Specialist <br />Division of Minerals and Geology <br />Depaztment of Natural Resources <br />1313 Sherman St., Room 215 <br />Denver, Colorado 80203 <br />Subject: Transmittal of Groundwater Analytical Results <br />GCC Rio Grande Red Rock Plant and Limestone Mine <br />Pueblo, Colorado <br />File No. M-2002-004 <br />December 2003 Sampling Results <br />Dear Mr. Waldron: <br />With this letter, Brown and Caldwell is transmitting to the Division of Minerals and <br />Geology (DMG) the analytical results for groundwater samples collected at the GCC <br />Rio Grande Red Rock Plant and Limestone Mine Site. Samples were collected and <br />analyzed to satisfy Condition #1 of the Mined Land Reclamation Boazd's approval of <br />GCC Rio Grande's 112c mining pextnit application: Baseline Water Quali[y Sampling. <br />Groundwater sampling for the month of December 2003 was conducted on <br />December 22, 2003. Sampling methods followed those outlined in the Condition # 1 <br />Groundwater Sampling Plan dated March 2003. <br />Groundwater samples were collected from the Saint Charles River alluvial aquifer at <br />monitoring well locations MW-002 and MW-004. Groundwater was not detected in <br />monitoring wells MW-OOlA and MW-003; therefore, MW-OOlA and MW-003 could <br />not be sampled. Since the pump fox DW-1 was not operating at the time of sampling, <br />no samples were taken from the DW-1 Dakota aquifer well. Samples were analyzed <br />fox the parameters listed in Condition #1. The analytical results are summarized in <br />Tables 1, 2, 3, and 4. <br />Attachment A presents copies of the analytical reports prepared by ACZ Laboratories, <br />Inc. and Reservoirs Environmental, Inc. Sample D-9 is a duplicate sample collected <br />from monitoring well MW-004. Sample MW-006 is an equipment blank collected by <br />pouring bottled distilled water over equipment used at multiple monitoring well <br />locations. <br />P:\Data\GEMF-S-P-i122421\Stipulatlon Response\Groundwater Sampling\Sampling Results\Dec 2003\Dec 2003 DMG <br />Letter.doc <br />