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Borehole Drilling Specifications
Uhl & Associates prepared sample borehole drilling specifications for two types of water supply wells:
1. Drilling specifications for Bedrock wells in consolidated bedrock
2. Drilling specifications for unconsolidated wells
These sample specifications include templates of requirements for driller qualifications, codes and standards, local geology, products (grout, casings, well screens), execution (drilling and installation, well development, driller record-keeping), pumping tests (step-drawdown and constant-rate) upon well completion, and site demobilization. The sample specifications for unconsolidated wells also include requirements for well screen centralizers, and pilot holes and sieve analysis for sizing of well screen slot-size openings and gravel pack design. Sample Bills of Quantities (BOQs) and Schedules of Prices to be filled in by the prospective drilling contractors are also provided in the sample specifications. |
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Rural Water-Supply Groundwater Project Checklists
Uhl prepared a set of seven Rural Water-Supply Groundwater Project Checklists to support USAID project teams conducting these types of projects.
These included the following:
• Project Conceptualization — Relevant Risk Factors Checklist
• Project Planning, Permitting and Siting of Wells Checklist
• Contractual Specifications for Well Installation Checklist
• Well Completion — Site Inspection Checklist
• Well Startup Pumping Test for Yield and Water Quality Checklist
• Final Well Documentation Package Checklist
• Well Operation and Maintenance — Data Collection and Indicators of Well Problems Checklist
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