APPCOR10255 - Laserfiche WebLink

Home Browse Search

• -5- C~ The purpose for the submittal of an Annual Hydrology Report by the operator is to report the results of anaanalysis of allydroYogie-Aat~ toll n the year, and to assess, by means of a -oLgh-analysi3~-,~,~ ~E~,~e' d nterpr tation ~ the data, the impacts that the mining an reclama i era ons have had on the hydrologic balance. The Annual Hydrology Report is a means of updating predictions about probable impacts that were made in the permit application. Information contained in the Annual Hydrology Report should include: (1) results of all hydrologic data collected during the year, tabulated cy~ in a format such that any trends in the data can readily be identified (this has not been done for the data submitted by CYCC), (2) analysis an interpretation o the hydrologic data collected during ~~ the year, tom results with data collected during previous years and with baseline data submitted in the permit application, and ~ r-~ p~lOna~'- re comrnerdc~klo„s ~' (~ro~l.e.-r • ~. (3) description of mitigative measures taken to minimize disturbance to the prevailing balance. ;~ ~9-- 1ha mn[iL y~ ~•~-~caie a ~rnblz~~. oll~c~T~n+~7hr>~.yl`?}'"`~~- The Division finds that CYCC must submit a revised Annual Hydrology Report to include the information outlined above. Further review and evaluation by the Division will occur upon receipt of this information. The OSM TEA made a finding of no significant impact to the hydrologic balance as a result of mining in Eckman Park. Also, the cumulative hydrologic impacts resulting from mining at the Eckman Park mine were taken into consideration in all subsequent cumulative hydrologic impact studies of the Upper Yampa River Basin. Assuming the information and analysis requested for the Annual Hydrology Report supports the conclusions in the permit application regarding probable hydrologic consequences the finding that the proposed mining operation has been designed to prevent material damage to the hydrologic balance outside the permit area is valid. This is consistent with the finding of no significant impact made by the OSM in the environmental analysis. To ~ „~ further substantiate this CYCC is requested to submit the data they have 4 rPP~a~ Cy "' „ collected on total cumulative hydrologic assessments for all mines. This) CG eZ` should be submitted with the Annual Hydrology Report. ~ c4j `~ ~i~ CYCC revised permit No. 79-177 to allow for sewage sludge application on mined spoils. The Division approved the revision on the condition that quarterly results for wells 009-6-10 and 009-79-4 are submitted to detect any adverse impacts to water quality. To date, no data has been submitted. CYCC must submit the results from these wells on a quarterly basis. The Division reserves the right to modify the monitoring plan pending the results. CYCC will be consulted if changes are necessary. VI. Alluvial Valley Floors - Rules 2.06.8 and 4.24 There are no substantive differences between the Federal and State programs in this section. u~1~ ~- ' S~.bm,~c~ ~\ D ~ ~ .1~10~;11~~~ P~ P°~ Co~~) j