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  5. ›Groundwater Deep Monitoring Well at Alaeloa Tank Site…

County of Maui·Hawaii

Groundwater Deep Monitoring Well at Alaeloa Tank Site [Tk104]

Closes 11/13/2026$500k – $1MInvitation for BidLogin required
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Description

The County of Maui’s Department of Water Supply is soliciting bids for the design, drilling, installation, and completion of a deep groundwater monitoring well at the Alaeloa Tank Site (TK104) on Maui. The contract will cover all site preparation, drilling operations, well casing, instrumentation, and related testing to meet county water‑supply monitoring requirements. Bidders must attend a non‑mandatory pre‑bid conference and optional site visit on October 23, 2026, and submit their proposals by November 13, 2026. Addenda have been issued (Oct 20 and Oct 29, 2026) providing updated specifications and cost estimates. • Scope: engineering, drilling, casing, installation of monitoring equipment, and post‑construction testing. • Location: Alaeloa Tank Site, Napili‑Honokowai, Maui, HI. • Estimated construction cost disclosed in Q&A: $750,000. • Pre‑bid conference (optional) on Oct 23, 2026, 8:30 AM (site) / via Teams; site visit at 10:30 AM same day. • Submission deadline: Nov 13, 2026, 3:00 PM EST. • Contact: Ashley DeCastro, Bid Contact, (808) 270‑7680, [email protected].

Attached files

The solicitation documents live at the source — open the bid source above to download them.

Contact

Ashley DeCastro(Bid Contact)

[email protected]

(808) 270-7680

Key dates

Opened
10/5/2026
Pre-bid meeting
10/23/2026
Site visit
10/23/2026
Closes
11/13/2026
Duration
365 days

Last updated

Details

Type
Invitation for Bid
Industry
Construction
NAICS
237110
Solicitation №
DWS 26-05

Budget estimate

$500,000 – $1,000,000

The addendum Q&A cites an estimated construction cost of $750,000 for the monitoring well. Assuming the county awards the contract at or near this amount, the contractor’s revenue would be roughly $750,000. Profit margins for specialized drilling projects typically range from 10 % to 20 %, suggesting a net budget to the contractor between $75,000 and $150,000. However, the total contract value (gross) is likely to fall between $500,000 (if design scope is reduced) and $1,000,000 (if additional ancillary work is included).

AI estimate from the solicitation

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