Manhole, Gravity Interceptor, and Easement Road Improvements Phase 2 Project

The Delta Diablo Sanitation District is advancing the Manhole, Gravity Interceptor, and Easement Road Improvements Phase 2 Project to enhance the reliability and capacity of its wastewater collection system in Pittsburg and surrounding unincorporated areas of Contra Costa County. The project scope includes rehabilitating or replacing 53 manholes, repairing approximately 8,882 linear feet of sewer pipelines, constructing a permanent underground bypass system to maintain flow during construction, and upgrading access roads at five key manhole locations to facilitate future maintenance. All work is concentrated in the northern Contra Costa County region, with the primary place of performance identified as Pittsburg, California, ZIP 94565. The project is governed by California Environmental Quality Act (CEQA) requirements, with compliance documented through an Initial Study and Mitigated Negative Declaration that mandates specific environmental controls for dust, erosion, hazardous material handling, and protection of biological and archaeological resources. Public review of environmental documents began July 21, 2026, with comments due by August 20, 2026, after which the district will proceed with project implementation. No formal solicitation number, contract value, or award evaluation criteria are provided, indicating this is a pre-procurement forecast rather than an active bid announcement. Primary point of contact for the project is Thanh Vo, Senior Engineer at Delta Diablo Sanitation District, reachable via email or phone, with additional coordination handled by Bianca Clarke of WRA, Inc., serving as a regulatory permitting specialist. The district’s administrative office is located at 2500 Pittsburg-Antioch Highway in Antioch, California, though no formal contract administration details such as a contracting officer’s representative, payment office, invoicing system, accounting codes, or contract type are specified. No packaging, marking, delivery terms, or procurement clauses from the Federal Acquisition Regulation are included in the documentation, reflecting the project’s state and local focus rather than federal procurement structure. While supporting environmental documents like a Soil Management Plan and Spill Prevention and Response Plan are referenced, there is no structured list of attachments or formal offeror certifications, unique entity identifiers, or socioeconomic status declarations. The absence of pricing data, delivery schedules, invoicing mechanisms, or contract terms confirms the current stage is one of environmental planning and public notice, with contractor selection and formal contracting processes anticipated to follow after review closure.