Hydrogeologic Consultant Services

The vendor is required to provide hydrogeologic consultant studies and technical documents prepared for constructing the proposed groundwater wells proposed within the supporting documentation.
1. Site inspection and well-site geophysical surveys:
•    Lineament mapping and field observations. 
•    Geophysical surveys for the purpose of identifying the most likely test well locations. 
•    Such geophysical surveys should be those appropriate for the parcel locations and for locating what is anticipated to be bedrock wells. 
•    The proposed geophysical methods, including survey lines and intended technology, should be clearly defined in the proposal.
•    Upon completion of the site inspections and geophysical surveys, provide a report that includes documentation of the data gathered, analysis of the data, setback requirements, and recommended test well locations. 
•    The recommended test well locations shall be ranked based on expected yield potential and presented on a map. 
•    Written explanations and opinions for the reasoning behind the selection and ranking shall be included in the report. 
•    Any anticipated issues with the selected sites shall be documented in the report. 
•    Any anticipated water quality impacts associated with long-term use of a well in the proposed site(s) shall be documented in the report.
2. Test well drilling bidding assistance:
•    Assist the town in developing a test well drilling bid for minimum 8” diameter test wells by providing information such as anticipated drilling equipment requirements, materials, effort and depth based on understanding of the local geological conditions. 
•    It is anticipated that up to two test wells will be drilled on one or more of the identified parcels under a single mobilization. 
•    The town in evaluation of the contractors’ qualifications, experience, and pricing based on experience and hydrogeologic knowledge of the site.
3. Test well drilling assistance:
•    Physically stake out, tag, and provide GPS locations for the top 3 proposed test wells. 
•    The top three wells shall be determined based upon discussions with the town and town representatives using the provided reporting, property owner conditions, access, and other relevant parameters. 
•    Have an experienced hydrogeologist on site for the duration of test well drilling and installation. the site hydrogeologist shall observe and make recommendations for sample collection and hydrogeologic analysis with the goal of maximizing well yield. 
•    The site hydrogeologist shall document well construction specifications, record a hydrogeologic log (overburden, lithologic types, depths and thicknesses, water-bearing characteristics, etc.), measure preliminary well yields, and record other hydrogeologic information required in the agency regulator reports. 
•    Provide qualitative recommendations regarding casing length, total depth to drill, when airlift testing shall be undertaken, airlift yield measurements, etc. 
•    Upon completion of the well the site hydrogeologist shall be present to observe well development via airlifting to observe the process and consult with the well driller. 
•    If the test well is deemed reasonable by the hydrogeologist during the well drilling, then the hydrogeologist shall design, coordinate with the well driller, and oversee a step test on the well (minimum 10-hour test). 
•    The proposal pricing shall outline the basis for developing a cost for on a per and well basis for up to two wells assuming that the second well will be part of a single mobilization by the well driller. 
•    The hydrogeologist shall collect water samples near the end of the step test and send them to be analyzed for a subset of the parameters required under agency regulations and the safe drinking water act to obtain regulatory approval for a new public water supply. 
•    The purpose of these samples shall be to confirm the likelihood that the chemical quality of the water produced will be acceptable before further work develops and permits the well is undertaken. 
•    Indicate the intended laboratory sample analyses and associated laboratory cost for the project.

- Contract Period/Term: 4 years