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HYDRO21263
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Last modified
8/24/2016 8:42:50 PM
Creation date
11/20/2007 2:08:03 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981023
IBM Index Class Name
Hydrology
Doc Date
9/16/1982
Doc Name
PRELIMINARY AQUIFER ANALYSIS AND ESTIMATION OF GROUNDWATER INFLOW TO TWO OPEN PITS
Permit Index Doc Type
OTHER GROUND WATER
Media Type
D
Archive
No
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<br /> <br />1 <br />1 <br /> <br /> <br /> <br />Piteau & Associates was asked to conduct the aquifer testing at <br />the CRCC mine begining September 7, 1982. Two tests were con- <br />ducted, a three phase step drawdown test and a 24 hour constant <br />discharge test, at wells W-15 and W-9, respectively (See loca- <br />tions on plate 1). <br />Construction and development of all wells was conducted by CRCC. <br />Two submersible type pumps were installed in the two pumped <br />wells on September 7, 1982 by Aqua Pump, Inc., a local contrac- <br />t tor. Power was supplied by a diesel light-plant supplied by <br />CRCC. All water levels were measured with Powers Well Sounders, <br />' the measurement taken. from the top of casing. Flow rates were <br />measured using a 5 gallon bucket and stop watch. <br />3.2 STEP-DRAWDOWN TEST AT WELL W-15 <br />' A three phase step drawdown test was conducted at well W-15 on <br />September 7, 1982. The two wells associated with this test are <br />completed into the Stollsteimer Creek alluvium. A submersible <br />pump capable of pumping a maximum of 40 gpm was installed in <br />' Well W-15, earlier in the day. Static water levels had been <br />monitored by CRCC monthly and Piteau & Associates monitored sta- <br />tic water levels just prior to the test. <br />' The step drawdown test was initially conducted in order to <br />determine the optimum pumping rate for a 24 hour constant <br />discharge test. Three steps were performed. The pumping rate <br />1 <br />1 <br />5 <br />3. FIELD PROGRAM <br />3.1 PROGRAM SET-UP <br />0 R RITE~U6 aS50ClA TES LIMITED <br />
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