Gilly Lane and Vicinity Pipeline Replacement Project

The Gilly Lane and Vicinity Pipeline Replacement Project involves replacing approximately 0.9 miles of aging water infrastructure on five residential streets in Concord, California, to address deteriorating 4-inch cast iron and asbestos cement pipes installed in the 1960s. The work will include replacing these mains with modern piping and upgrading the water system by installing one new fire hydrant while replacing seven existing ones, all within the existing Contra Costa Water District service area without extending service boundaries. Construction is scheduled to occur between June 2026 and March 2027 over an eight-month period, with pipe segments transported in 20-foot sections and stored onsite for no more than one week per location to minimize disruption to residents and traffic. Old pipes will be abandoned in place according to CCWD standards, and all disturbed areas will be restored to match existing pavement conditions, with temporary water service interruptions limited to eight hours and preceded by 24-hour notice. The project complies with local and state regulatory frameworks, including obtaining an encroachment permit from the City of Concord, adhering to NPDES General Order CAG140001 for stormwater discharge, and utilizing CEQA exemptions under sections 15301(b) and 15302(c) as the work qualifies as utility maintenance. Best Management Practices outlined by CCWD govern site operations, including daily trash removal and hazardous material controls. No federal acquisition regulation clauses, contract value estimates, payment details, or formal evaluation criteria are specified, as this is a forecasted project under the purview of a public water district rather than a typical federal procurement. All work occurs within the public right-of-way on Gilly Lane, Gilardy Drive, Julie Court, Picadilly Court, and Lambeth Lane, with the Contra Costa Water District serving as both the project sponsor and overseeing authority, and Cody Ericksen, Associate Planner, designated as the primary point of contact.