Deionized Water Filtration System Maintenance

San Mateo County Sheriff's Office is requesting proposals for biannual preventative maintenance on deionized water filtration systems at its Forensic Laboratory, 50 Tower Road, San Mateo, California, with proposals due September 28, 2026 at 3:00 p.m. A local-vendor preference applies to San Mateo County businesses, with additional preference for certified small and micro businesses.

The scope covers preventative maintenance on a Millipore Elix 20 and a Milli-Q Advantage A10 water purification system, with service events scheduled for November 2026 and May 2027. Work includes general system inspection, water purification component evaluation, monitoring and instrumentation verification, performance testing, cleaning and sanitization, and comprehensive service documentation. All work must use original equipment manufacturer parts only, and service personnel must be trained and qualified by the manufacturers. Proposers must demonstrate a minimum of four years of similar service experience within the last seven years and have an account manager with at least two years of relevant experience.

The contract term is one year with two optional one-year renewal periods exercisable at the County's sole discretion. Evaluation weights minimum qualifications at 50 points, price (low-cost reward) at 25 points, and preferential points for local businesses and non-profits at 10 points. The anticipated contract award date is October 1, 2026. No pre-proposal conference or site visit is scheduled. The County requires DNA reference samples via buccal swabs from contractors to identify potential contamination during forensic operations.