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iiiiiiiiiiiiiiiiii <br />STATE OF COLORADO <br />OFFICE OF THE STATE ENGINEER <br />Division of Water Resources <br />Department of Natural Resources <br />1313 Sherman Stree[, Room B18 <br />Denver, Colorado 80203 <br />Phone (303) 866-3581 <br />FAx (303) 866-3589 <br />+at:r~,i/~:~, <br />AUG ~ ~ fyyg <br />August 21, 19~~~~5'on oi,~~;marvs ~ t;.,.,,.,,;,, <br />Ms. Barbara L. Pavlik <br />Environmental Protection Specialist <br />Division of Minerals & Geology <br />1313 Sherman St., Room 215 <br />Denver, CO 80203 <br />RE: Coal Ridge No. 1 Mine (Permit No. C-84-065) <br />Technical Revision Application #13 -Permit Renewal Issues <br />Dear Ms. Pavlik: <br />OF COQ <br />h~ <br />:. <br />~• <br />• ,~ ~ <br />Roy Romer <br />Governor <br />lames S Lochhead <br />Esecuuve Director <br />Hal D. Simpson <br />State Engineer <br />The Division of Water Resources has reviewed the file of the technical revision referenced <br />above and has the following comments relating to water resource matters: <br />The ground water issues identified in your August 2, 1996 letter to DWR relate to ground <br />water monitoring wells that were "removed." Since these are identified as monitoring <br />wells they are subject to the "Water Well Construction Rules 2 CCR 402-2." This office <br />suggests that if "removed" means plugging and sealing, that Rule 15 of said Water Well <br />Construction Rules applies if the monitoring well was constructed into an unconfined <br />aquifer (Rule 15.2) or was constructed through more than one aquifer (Rule 15.31• Rule <br />15 is entitled "Standards for Plugging and Sealing Wells and Well Excavations." <br />2. The other water resource item was identified as a surface water issue and apparently <br />relates to some ditch "re-sizing" necessary because of an"established vegetation stand" <br />and a berm location. This office has no objections nor comments regarding these ditch <br />routing items. <br />In summary, the surface water "issues" have no apparent water resources impact and <br />therefore this office has no objections. Further, the ground water monitoring wells that are <br />"removed" should be in compliance with the applicable portion of Rule 15 of the Water Well <br />Construction Rules as above stated. <br />Sincerel~y/f,.~~ ~ ,~/~~~ ~ <br />Chuck G. Roberts <br />Professional Engineer III <br />CGR/jmg:7312 <br />cc: Orlyn Be11, Division Engineer <br />