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1 <br />2.0 SUMMARY OF HYDROLOGY MONITORING DATA <br />The Deserado Mine hydrology monitoring program was initiated during the first quarter of 1981 <br />and succeeds the baseline hydrologic monitoring and inventory program that was initiated in <br />' 1978. The purpose of this section of this report is to: <br />• Describe the Deserado Mine hydrology monitoring program <br />' • Summarize the hydrology monitoring data collected from October 1, 1990 to <br />September 30, 1991 <br />• Compare the hydrology data collected during this reporting period with the data from <br />the baseline hydrology inventory <br />2.1 Description of the Deserado Mine Hydrologic Monitoring Program <br />An ongoing hydrologic monitoring program for the Deserado Mine was initiated during the first <br />quarter of 1981. This program was designed based on the results of the hydrologic baseline <br />studies which were initiated in 1978. The program was implemented to fulfill the regulatory <br />requirements under the Federal Surface Mining Control and Reclamation Act (SMCRA) and the <br />Colorado Surface Coal Mining Reclamation Act. <br />2.1.1 Surface Water Monitoring Program <br /> <br /> <br /> <br /> <br />1 <br /> <br />1 <br /> <br />The original surface water monitoring program consisted of monitoring surface water at the <br />following nine (9) stations: <br />SW1-1 SW31-1 <br />SW11-1 SW33-1 <br />SW12-1 SW23-1 <br />SWi 1-2 SW24-1 <br />SW6-1 <br />The location of each of these stations is shown on Plate 1 in the pocket of this report. Stations <br />SW1-1, SW11-1, SW31-1, SW23-1, and SW24-1 are crest stage gages with single stage <br />samplers and are designed to measure the crest of flow events and collect samples as the result <br />of those events. Stations SW6-1 and SW33-1 are the locations of stock watering ponds where <br />grab samples are to be collected. SW72-1 and SW11-2 are stations where grab samples from <br />the White River were collected. At stations SW6-1, SW33-1, SW12-1 and SW11-2 only water <br />samples are collected for analysis. Crest gage and water sample station SW23-1 is to be <br />2 <br /> <br />