EXT REC | CON27-0007R Lincoln Park Irrigation MLBE

The San Francisco Recreation and Parks department is seeking bids for a re-advertisement of irrigation work at Lincoln Park in San Francisco, California, under solicitation SFGOV-0000012188. The project has a cost estimate of 408,000 dollars and requires contractors to hold either an A or C-27 license. Bids must be emailed to Bridget L. Webster by Thursday, October 29, 2026, at 2:30pm. There will be no pre-bid meeting for this solicitation. The scope of work involves the installation of recycled water systems, requiring all pipes, fittings, and restraints to be purple with specific recycled water labeling. Technical specifications include the use of 3 inch detectable tape above 4 and 6 inch pressurized main lines and a strict prohibition against trenching or plowing in greens, tees, and sand traps. Electrical requirements specify the use of 12AWG or 14AWG solid copper control wires, APC Smart UPS 1500VA, and Intermacti AG2401 power surge arrestors. Grounding must be established every 1,000 feet along the main line using copper clad grounding rods. Contractors must coordinate field staking with the irrigation consultant, Russell D. Mitchell Associates, Inc., providing at least three days notice prior to visits. Specific installation standards include a minimum 12 inch vertical separation between potable and recycle pipelines, which cannot be installed in the same trench. Valve box color coding is mandated, with green for isolation valves, black for gate valves, and grey for electrical. All base materials must be free from rocks larger than 2 inches.