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_ : ~ ~ III IIIIIIIIIillllll <br /> <br /> STATE OF COLORADO <br />DIVISION OF MINERALS AND GEOLOGY <br />Depanmenl of Natural Resources <br />141 l Shcnnan $1., Room 215 `y <br /> <br />Denver, Culumdo BO203 I <br />~~ <br /> <br />Phunc: (ill l) ri6L-1567 II <br />FA1 141141 HiL 8106 <br /> DEPARTMENT OI <br /> NATURAL <br />June 15, 1994 RESOURCE` <br /> Roy Ramer <br /> Gavemur <br /> Ken Sa laea. <br />Mr. Rick Mills e.ee°'~.eo°~'r~,., <br />Colorado Yampa Coal CO. Mic hael B. lung <br />29587 Routt Co. Rd. # 27 oi~~~~nnDirenor <br />Oak Creek, CO. 80467 <br />RE: 1993 Annual Hydrology Report, Mine No. 3, #C-84-062 <br />Dear Mr. Mills: <br />The Division has completed review of the 1993 Annual Hydrology <br />Report for Mine No. 3. Our comments are as follows: <br />1. The Division requested in a letter dated March 24, 1993 that <br />CYCC add the elevation of well 008-SP-4b to map 4b. This was <br />not done as requested. Additionally, the permit boundary is <br />not shown on map 4b as required by Rule 2.10.1(3). Please add <br />these two items and re-submit map 4b. <br />2. The x-axis on the figures does not seem to correlate in any <br />organized way with the x-axis ticks or data. Please explain <br />this apparent discrepancy. <br />3. CYCC requested and received approval to submit annual survey <br />data for Site 304 within the AHR rather than in June of each <br />year. Why was this data not submitted? <br />4. Flow data is missing for Site 24 during April. Please correct <br />and re-submit two copies of the appropriate pages. <br />5. In the future CYCC should report the flow values for sites 700 <br />and 900 as per the approved hydrologic monitoring plan. <br />6. Why were bedrock wells s pled for full suite analysis during <br />June rather than April ~ May as per the approved plan? <br />Conclusions 6`( <br />The Division does not agree that a persistent drop in manganese in <br />the spoil is in any way representative of restoration of pre- <br />disturbance geochemical conditions. We do, however, agree with CYCC <br />that the alluvial wells along Foidel creek are showing an increase <br />