Oxidation Ditch Aerator Maintenance and Repair Services

The California Department of Corrections and Rehabilitation (CDCR), Contracts Management Branch, is requesting bids for oxidation ditch aerator maintenance and repair services at California Men's Colony (CMC) in San Luis Obispo, California, with bids due September 25, 2026, at 11:00 a.m. The procurement carries a 25 percent small business participation requirement; certified small businesses and micro-businesses are encouraged to bid, with a five percent preference available. Disabled Veteran Business Enterprise (DVBE) participation carries an incentive of one to five percent based on participation level.

The scope includes scheduled maintenance and repairs as well as as-needed services for oxidation ditch aerators, anoxic zone mixers, motors, gearboxes, shafts, rotors, and blades at the facility's wastewater plant. Services encompass inspection and maintenance of aerator assemblies, megohmmeter testing of motor integrity, oil changes in gearboxes with original equipment manufacturer-specified oil, replacement of damaged parts, and waste material disposal. All work must be performed between 7:00 a.m. and 4:00 p.m., Monday through Friday, excluding weekends and state holidays unless otherwise agreed upon, and must be approved by the Institution Contract Liaison before performance. The contractor must guarantee all repairs and replaced parts for a minimum of 90 days from the service date and comply with Cal/OSHA requirements and confined space entry procedures per Title 8, California Code of Regulations.

Bidders must hold a valid California Contractors State License Board (CSLB) "A" General Engineering Class license and provide a valid California business license. The pricing structure consists of three components: one-time services for inspection, maintenance, and repairs of three oxidation ditches; as-needed maintenance and repair services billed at an hourly rate for an estimated 100 hours; and emergency services billed at an emergency service rate for an estimated 50 hours. The contract term extends from the anticipated commencement date through September 30, 2029. An optional walk-through is scheduled for September 15, 2026, at 10:00 a.m. Letters of inquiry are due September 18, 2026. Public bid opening occurs September 28, 2026, at 2:00 p.m. Award will be made to the lowest responsible bidder whose bid complies with all requirements.