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Reported 01/15/2022 12:00 AM
Project Title

Groundwater Level Monitoring Network Well Replacement Project

Physical Address View project details and contacts
City, State (County) Colebrook, Concord, Franklin, NH (Coos, Merrimack Counties)
Category(s) Sewer and Water
Sub-Category(s) Pumps and Wells
Contracting Method Competitive Bids.
Project Status Bidding
Bids Due View project details and contacts
Estimated Value
Plans Available from State Agency
Owner View project details and contacts
Architect View project details and contacts

llation of three (3) groundwater monitoring wells to be installed in Colebrook, Franklin, and Concord, New Hampshire. The newly installed wells will replace existing monitoring wells in the New Hampshire Groundwater Level Monitoring Network that have been damaged or compromised. The preferred methods for monitoring well installation will be using 4-1/4” ID (inside diameter) Hollow Stem Augers. Final depths for each groundwater monitoring well are anticipated to be: Colebrook to a depth of 50 feet below ground surface (bgs), Franklin to a depth of 50 feet bgs, and Concord to a depth of 40 feet bgs. The final well depths will be based on field conditions and determined on site. Groundwater monitoring wells are to be constructed with schedule 40, 2-inch ID PVC riser and well screen. Filter pack sand is to be used to fill the bore annulus around the screen to a minimum of two feet above the top of the screen. A bentonite seal will be placed above the filter pack with a minimum thickness of 2-feet. A steel well protective casing will be installed and cemented at the ground surface to protect each well. Once installed, each well will be pumped to develop the well filter pack and remove fine sediments from the well.


Division 02 - Existing Conditions, Subsurface Investigation.
Division 03 - Concrete, Cast-in-Place Concrete.
Division 22 - Plumbing, Plumbing Piping, Plumbing Equipment.
Division 26 - Electrical, Instrumentation and Control for Electrical Systems.
Division 33 - Utilities, Water Utilities, Water Utility Distribution Piping, Water Utility Distribution Equipment, Water Utility Pumping Stations, Wells.
Division 44 - Pollution and Waste Control Equipment, Water Pollution Control Equipment.

Bidder's List View project details and contacts
Prospective Bidders View project details and contacts
Project Documents
 Engineered Spec Sheet
 Architectural Plans
 Other Documents