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REP11973
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REP11973
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Entry Properties
Last modified
8/24/2016 11:42:55 PM
Creation date
11/27/2007 12:48:26 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981038
IBM Index Class Name
Report
Doc Date
5/10/2004
Doc Name
2003 Annual Hydrology Report
From
J.E. Stover & Associates
To
DMG
Annual Report Year
2003
Permit Index Doc Type
Hydrology Report
Media Type
D
Archive
No
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• West Roatcap Creek -Four springs were monitored in the West Roatcap Creek drainage (refer to Table 1 and Map No. <br />4-1) during 2003. Spring 31 was monitored on a monthly basis. Flows throughout the year were considered average <br />with the flow tapering off in the fall. Water quality paaameters were consistent with ranges previously established for <br />this site. No mining occurred within the watershed for this spring in 2003 and no mining impacts were evident. Spring <br />32 was monitored monthly, Spring 32 exhibited flow throughout the year with the flow tapering off in the fall and <br />winter. The flow meter was bypassed by the landowner during 8 of 12 monitoring events. Water quality parameters <br />were consistent with last year's sampling. Spring 10-13 was monitored quarterly. Flows, as a result of a seemingly dry <br />year, were non-existent. No mining occurred during 2003 in the Spring 10-13 watershed. Spring 14-4 was monitored <br />quarterly. Flows and field parameters observed at this site were well below average when compazed with previous <br />values. No mining occurred during 2003 in the Spring 14-4 watershed. <br />Steven's Gulch -One spring was monitored within the Steven's Gulch drainage (refer to Table 1 and Map No. 4-1) in <br />2003. Spring 25 lies below an area of the East mine inactive since 1982. This site had no measurable flows in April, <br />June, September or December. Spring 25 has been identified as an adjudicated water right within the permit azea. <br />Two springs with ponds in the Stevens Gulch drainage, Spring and Pond 13-5, Spring and Pond 13-6 were monitored <br />quarterly in 2003. Spring and Pond 13-5 was undermined during the last half of 1992. Spring and Pond 13-6 was <br />undermined during the end of 1988. Neither Spring 13-5 nor Spring 13-6 had any measurable flow throughout the year. <br />Terror Creek -Seven springs or springs with ponds are found within the Terror Creek drainage (refer to Table 1 and <br />Map No. 4-1) were monitored during 2003. Spring and Pond 17 is outside the anticipated extent of mining activity. <br />Spring and Pond 20 and Spring and Pond 7-1 were undermined during the East Pod development, panels EP-3 and EP-4. <br />All four springs have extensive data collected to characterize the typical hydrology at these sites. However, these <br />locations were identified and tazgeted by the Division as adjudicated water rights within the permit azea. No adverse <br />mine related impacts or other irregulazities were noted at any of these Terror Creek Springs. <br />. Surface Water Monitoring Stations: STREAMS AND DITCHES <br />Overall, adverse impacts amibutable to mining were not evident at any of the monitored surface water stations (refer <br />to Table 1 and Map No. 4-1). Stations SW-5 (Stevens Gulch) and SW-6 (East Roatcap Creek), exhibited below average <br />flows and water quality parameters consistent with previous yeazs data. Station SW-10 (Terror Ditch), exhibited typical <br />flows for an irrigation ditch. No evidence of subsidence impacts in these drainages was appazent. Mining occurred in <br />the Stevens Gulch drainage upstream ofsite SW-5 during 1993 in Panel C. Panel C mining was designed and conducted <br />to prevent the development of subsidence to protect the waterway and certain structures in the vicinity. Data collected <br />during 2003 shows these protective measures were successful. <br />Surface Water Monitoring Stations: SMALL AREA EXEMPTIONS <br />The east mine fan level was defined as a small azea exemption since drainage from this azea (refer to Map 8-1) is not <br />conveyed to a sediment pond. Three sample points were defined at this location and sampled for conformance with the <br />NPDES dischazge alternative limitations requirements associated with discharges occurring because of precipitation <br />events of less than the 10-yeaz and 24-hour magnitude. In these instances, settable solids and pH limitation must be met. <br />No samples were collected during 2003 from these SAE points, <br />Coal Member of Mesaverde: <br />All previously monitored drill holes have now collapsed and aze no longer monitored. The final hole, DH-60, was <br />monitored by a long tube used to pressurize the hole and produce an estimate of water level. This tube has become <br />ineffective. The removal of these monitoring points is explained in TR-34. <br />Surface Water Monitoring Stations: PONDS <br />East Roatcap Creek -Fifteen ponds in the East Roatcap Creek drainage were monitored during 2003 (refer to Table 1 <br />and Map No. 4-1). Ponds were monitored quarterly for water levels and field parameters if they were dischazging. <br />No evidence ofmine impacts was noted. During 1994 retreat mining was done under Ponds 10-1, 10-2, ] 0-3, 10.4 and <br />10-I 1. Advance mining occurred under ponds 88 and 14-2 m 1997. The East Roatcap Creek Ponds were physically <br />intact throughout 2003 and showed no subsidence effects. <br />• <br />
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