The general scope of work related to the well construction, development,
performance testing and water quality sampling and analysis includes the
following:
1. Site clearing, grubbing and preparation per Section 02100, Clearing,
Grubbing and Site Preparation.
2. Construct temporary erosion and sediment control measures per Section
02276, Temporary Erosion and Sedimentation Control.
3. Mobilize drilling equipment to site, per Section 02850, Well Mobilization and
Cleanup.
4. Install a pit casing per Section 02852, Casing. Depth and diameter is at the
discretion of the CONTRACTOR.
5. Drill pilot hole to 150 feet below land surface, per Section 02851, Drilling, and
perform geophysical logging of pilot hole in accordance with Section 02853,
Geophysical Logging.
6. Ream pilot hole to a nominal 29-inch diameter to a depth of approximately
130 feet below land surface, per Section 02851, Drilling, and perform
geophysical logging in accordance with Section 02853, Geophysical Logging
7. Install 24-inch steel surface casing to approximately 130 feet, in accordance
with Section 02852, Casing.
8. Grout casing to surface in accordance with Section 02854, Grouting.
9. Drill pilot hole to 380 feet below land surface, per Section 02851, Drilling and
perform geophysical logging of pilot hole in accordance with Section 02853,
Geophysical Logging.
10. Ream a nominal 23-inch borehole to approximately 360 feet below land
surface, in accordance with Section 02851, Drilling, and perform geophysical
logging in accordance with Section 02853, Geophysical Logging.
11. Install 17.4-inch Certa-Lok casing to approximately 360 feet in accordance
with Section 02852, Casing.
12. Grout casing to surface in accordance with Section 02854, Grouting.
13. Conduct Plumbness and Alignment Test in accordance with Section 02852,
Casing, and AWWA Standards.
14. Drill out the cement plug in the base of the casing and convert to reverse-air
rotary drilling in accordance with Section 02851, Drilling.
15. Drill nominal 15-inch borehole to 600 feet by reverse air rotary method, in
accordance with Section 02851, Drilling. Bid Security shall be made payable to TOHO, in an amount of five percent of the Bidder's maximum
utility Bid price and in the form of a certified or cashier's check, a Bid Bond on the form provided
(or substantial equivalent) issued by a Surety meeting the requirements of paragraph 5.1 of the
General Conditions, or other security as provided by law. Question Deadline 05/22/2023 at 12:00 PM ET
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