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• i iii iiiriiiiiiii {11 Getty Oil Company I 23385 Routt County Road 33, Oak Creek, Colorado 80467 • Telephone (303) 879-4426 June 16, 1983 ~~~'~`~'~~ Ms. Sandra Emrich, Reclamation Specialist Colorado Mined Land Reclamation Division 423 Centennial Building f~il~•;LD I-Air©tiF.CLAP1~,~;TiGN 1313 Sherman Street Celo. Gep!. of Natural Resa~rces Denver, CO 80203 RE: Permit 79-177, Foidel Creek Mine, Stipulation No. ,1 Dear Sandy: This letter is in response to Stipulation No. 1 of the permit approval far the Foidel Creek Mine. The stipulation reads as follows: "To verify the applicant's predictions of stream depletions in the area of the Wadge coal-overburden aquifer discharge area on Fish Creek, the applicant shall install and monitor a set of nested piezometers completed in the alluvium of Fish Creek overlying the sub- crop of the Wadge coal-overburden aquifer. A plan shall be submitted within 30 days and the wells shall be installed within 120 days of issuance of this permit. The wells shall be monitored monthly for water levels and the results of monitoring submitted quarterly to the Division." Twentymile Coal Company has set out a plan to install and monitor a set of alluvial monitor wells in the Fish Creek floodplain. The monitor well system includes a nest of six wells which are completed in the Fish Creek alluvium overlying a fault zone. This highly fractured fault eastern portion of the Twentymi.le park basin, and is far the 'dodge coal-overburden aquifer. An additional the alluvium of Fish Creek overlying the sub-crop o aquifer. The well will be installed within 45 submittal. The location of the monitor wells is Energy. Mine No. 3 Ground Water Hydrology. zone extends throughout the the probahle discharge area well is to be installed in the Wadge coal-overburden lays of the date of this shown on the attached map, The monitor wells will be monitored for water table elevation on a monthly basis, and results of the monitoring will be submitted quarterly. The first submittal will include all data collected as of the third quarter of 1983.