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STATE OF COLORADO <br />DIVISION OF MINERALS AND GEOLOGY <br />Depanmenl of Natural Resources <br />131 3 `•hcrm,.n SI., Rnom ? I5 <br />Drover, CC1 SO'03 <br />Phone: 13011 Bbfi- i56i <br />FAQ: uU31 dl'Ddlllb <br />March 23, 1993 <br />Attn: Peter Matthies <br />0029 Glen Eagle Circle <br />New Castle, CO 81647 <br />Re: Review of 1992 Annual Hydrology Report <br />Coal Ridge No.1 Mine (C-84-065) <br />Dear Peter: <br />OF' ~~r0 <br />,~`~ 9 <br />~c <br />~~~' <br />Rov Romer <br />Governor <br />Michael B. Long <br />Division Director <br />I have completed my review of the submitted 1992 Annual Hydrology <br />Report from Mike Galloway and have the following comments. <br />1. The mine has complied with Rule 4.05.13; the monitoring plan <br />for the most part except for the winter quarter. The Division has <br />since received the winter quarter's data submitted by Resource <br />Engineering Inc. All parameters have been monitored according to <br />Stipulation No.3 except for C03 in well OW-14. Record <br />investigation shows that C03 has not been calculated in the annual <br />hydrology reports since the beginning of monitoring in 1985. <br />P.ecommendation <br />Please provide an explanation why C03 has been excluded from the <br />parameter analysis in well OW-14 in the annual hydrology report. <br />The Division position is that this parameter should be monitored <br />annually as specified in Stipulation No.3. <br />2. The data from the 1992 sampling and measurements fall within <br />the historical range of data from the same well locations. <br />3. The data from the 1992 sampling and measurements are within <br />the projections of the Probable Hydrologic Consequences (PHC) for <br />the mine. <br />This concludes my review. If you have any questions regarding the <br />issues mentioned above, please do not hesitate to call me at 866- <br />3567 x360. <br />Sincerely <br />~ r <br />~. <br />- ~ "mot ~_,. ~ ,= ~_ - <br />Shawn E. Smith <br />Reclamation Specialist <br />cc: Larry Routten <br />