Opportunity

Architecture + Engineering + Environmental + Planning Questcdn #10157076

Wastewater System Improvements for Twin Lakes Utilities (Rockwell City, IA)

Posted

April 14, 2026

Respond By

May 14, 2026

Identifier

10157076

NAICS

237110, 221320

This opportunity involves a major wastewater system improvement project for Twin Lakes Utilities in Rockwell City, Iowa. - Government Buyer: - Twin Lakes Utilities Board (local government entity) - Products and Equipment Requested: - NitrOx MBBR (Moving Bed Biofilm Reactor) for advanced wastewater treatment - Aeration blowers for system oxygenation - New concrete structures and a concrete building - UV disinfection system for water treatment - Emergency backup generator for power reliability - Services Requested: - Trenching, seeding, patching, and other sitework - Installation of control panels, HVAC, lagoon improvements, and electrical/telemetry systems - Notable Requirements: - Comprehensive upgrades to wastewater treatment plant infrastructure - Plans and specifications available from ISG Inc. (soliciting agent) - Refundable deposit required for plans - No specific OEMs or vendors are named in the solicitation - Estimated contract value: $2,600,000 - Place of Performance: - Rockwell City, Calhoun County, Iowa (Twin Lakes Utilities facility)

Description

This construction project involves wastewater system improvements for Twin Lakes Utilities in Rockwell City, Iowa. The scope includes building a NitrOx MBBR, aeration blowers, new concrete structures, a UV system, a concrete building, an emergency backup generator, trenching, seeding, patching, and other miscellaneous work. The estimated contract value is $2,600,000 with an expected completion date of November 26, 2026. Plans and specifications are available from the Twin Lakes Utilities Board and ISG Inc.

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