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C153953 Contract
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C153953 Contract
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Last modified
7/7/2010 10:23:09 AM
Creation date
10/6/2006 12:10:06 AM
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Loan Projects
Contract/PO #
C153953
Contractor Name
Camp Dresser & McKee
Contract Type
Grant
Water District
0
Loan Projects - Doc Type
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Task 37: Aquifer Pumping Tests <br />Objective: <br />This task, in conjunction with the effort from Phase 1, will continue to fill data gaps for aquifer <br />property data within the Denver Basin bedrock aquifers, by conducting and analyzing the data <br />collected from aquifer pumping tests. <br />Comment: <br />This Task is coupled with but is expected to occur prior to Task 36, Construction and Testing of <br />Bedrock Wells. Aquifer pumping tests will be designed and implemented after performing a <br />detailed analysis of the existing but unpublished aquifer testing data contained in SEO well <br />permits. Analysis of the well permit data from the Denver Basin Region bedrock aquifers will <br />reduce data gaps and allow identification of locations for additional aquifer testing. The aquifer <br />tests then will be conducted, by using existing high-capacity wells andlor wells being constructed <br />by others in the Denver Basin bedrock aquifers. Municipalities will primarily be targeted for this <br />data collection effort. It is anticipated that in most locations single-well pumping and recovery <br />tests will be conducted. However, in locations where other wells such as nearby production, <br />monitoring wells, and/or wells proposed for abandonment can feasibly be used as observation <br />wells, multi-well tests will be performed. <br />One bedrock well is planned for installation and testing under Task 36 and 10 aquifer pumping <br />tests using existing wells are planned under this Task. However, if more than ten sites are <br />identified in this Task where existing wells can be used to collect aquifer property data (that the <br />Consultant determines to be of sufficient quality), then the Consultant will meet with the State to <br />discuss the use of the additional existing wells from which to collect aquifer property data in lieu <br />of drilling any new wells in Task 36. If the Consultant recommends that the proposed new <br />bedrock well not be drilled and if this is approved in writing by the State, then up to ten additional <br />aquifer pumping tests will be performed under this Task. <br />The aquifer testing and water level data collection will help address the SB 96-74 <br />recommendations regarding aquifer pumping tests and aquifer properties of the Denver Basin <br />Region bedrock aquifers. <br />Task 37.1 Bedrock Aquifer Property Data Collection <br />• The SEO Division 1 well permit database will be evaluated for bedrock wells within the <br />Denver Basin Region that are located in data-gap areas and have well completion <br />information Those wells with screened and/or perforated intervals at depths greater than 100 <br />feet below ground surface and within a single bedrock aquifer will be cataloged for further <br />analysis. Copies of the well permits for the cataloged bedrock wells will be requested from <br />the SEO. The SEO will provide the requested bedrock well permits in a scanned electronic <br />format. It is anticipated that approximately 5000 bedrock well permits will be reviewed. <br />• The requested bedrock well permits will be reviewed for well screen/perforation and lithologic <br />information, well log and aquifer test information including pumping rate, static water level, <br />SPDSS Groundwater SOW, Phase 2 12 <br />
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