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GRAND VALLEY COAL <br />3- <br />COMPANY <br />WATER SAMPLING REPORT <br />Date 9-20-97 <br />TFilyd <br />iii iiiiiiiiiiiii iii <br />sss <br />Quarter 1997 <br />Sampled by:John M. Walters <br />Meters Calibrated: YES <br />Weather <br />Conditions : Wet summer, monsoon came in in mid July and stayed until the end of the quarter. <br />The most intense storm came thru about August 5TH and dropped 2 inches of rain. <br />According to the local rancher, the storm only lasted for about 5 hours. The stone <br />brought debris from off site into the surtace water controls and plugged two <br />culverts in the system 8 completely filled the sediment trap at the pond with dirt. <br />The moisture from two Pacific hunicanes came thru the area in September. Linda <br />dropped about five inches of rain - 0.4 ; 0.4, 0.75, 2.5, and 1.2 inches from Thur. <br />thru Sun. One squall came thru while samples were being collected. SW-3 flow <br />increased from 2 feet deep to a full 6 feet in about 15 minutes after a 15 min. hail <br />storm. Tthe 2.5" - 24 Hr storm put down 3.3 inches in 27 Hr. <br />'Sample point originally dry in the morining but flow came in the afternoon . <br />"Sample taken immediately after a 15 minute hail storm. <br />"` Evidence of 1,3' of flow in Culvert = 36.5 CFS <br />Sampling <br />Conditions: All wells were bailed prior to sampling. <br />9-ZO-97 <br />SURFACE WATER <br />Sample <br />Point TIME TEMP <br />C Ph EC VO&G FLOW <br />CFS <br />SW-1 07:40 AM 13.4 8.67 2,025 NONE 7.10 <br />SW-2 * 3:38 PM 15.15 8.49 400 NONE 2.23 *** <br />SW-3 ** 8:30 AM 7.2 8.78 540 NONE > 300 <br />SW-5 * 3:05 PM 15.8 8.54 420 NONE <br />SW-8 8:52 AM 9.5 8.51 1,600 NONE 12.01 <br />GROUND WATER <br />9-20-97 <br />Sample <br />Point TIME TEMP <br />C Ph EC V08rG SWL <br />GW-1 4:45 PM 15.3 8.07 4,200 NONE 8.29 <br />GW-3 08:15 AM 14.8 7.78 4,000 NONE 21,00 <br />GW-6 8:05 AM DRY DRY DRY DRY DRY <br />Location of <br />Points /Wells SW-1 -East Salt Creek above McClane. <br />SW-2 -McClane Creek at culvert below mine. <br />SW-3 -Munger Creek at haul road culvert below mine. <br />SW-5 -McClane Creek above mine site al culvert inlet <br />SW-6 -Munger Creek below mine before North split. <br />SW-8 -East Sall Creek between Munger and McClane Creeks. <br />GW-1 -Alluvium of East Sall Creek about 3 miles above McClane. <br />GW-3 -Alluvium of East Salt Creek just below Munger Canyon. <br />GW-6 - In Munger Canyon at the permitted waste rock disposal area. <br />