Tentative Orders
A draft NPDES permit is being considered for the Exploratorium Heating and Cooling System. The draft permit would regulate the discharge of about 0.30 million gallons per day of non-contact heating and cooling water and filter backwash to Central San Francisco Bay. The San Francisco Bay Water Board will consider this item at its June 10, 2026, meeting. Written comments or objections to this action must be submitted no later than May 18, 2026, by 5:00 p.m.
A Tentative Order (TO) issuing Waste Discharge Requirements (Order) to the Santa Clara Valley Water District Coyote Creek Flood Protection Project will be considered by the San Francisco Bay Regional Water Quality Control Board at its June 10, 2026, meeting. The draft Order would authorize the placement of fill in waters of the state for the construction of traditional floodwalls, passive barriers, berms, and levees spanning 17,000 discontinuous linear feet (LF), and improvements to the City’s municipal storm sewer system by the Santa Clara Valley Water District. Written comments on the Tentative Order or objections to this action must be submitted no later than May 16, 2026, by 5:00 p.m.
A Tentative Order for Waste Discharge Requirements is being considered for the closed Bedwell Bayfront Park Landfill at 1600 Marsh Road, Menlo Park, San Mateo County. The Tentative Order would update monitoring requirements for the landfill. Written comments or objections to this action must be submitted no later than May 1, 2026, by 5:00 p.m.
A Tentative Order terminating the cleanup requirements for Order No. R2-2014-0021 is being considered for the discharges of tetrachloroethene (TCE) at 6400 Sierra Court, Dublin, Alameda County. If no significant comments are received, we plan to administratively issue the Order.
An NPDES Permit is being considered for Lehigh Southwest Cement Company, Permanente Plant, Cupertino, Santa Clara County. The permit would regulate the Plant’s discharge of treated wastewater and industrial stormwater to Permanente Creek. The San Francisco Bay Water Board will consider this item at its June 10, 2026, meeting. The public comment period remains closed.
A revised Tentative Order for cleanup and abatement is being considered for discharges of tetrachloroethene (PCE) at 2700 Willow Pass Road, Concord, Contra Costa County. The Tentative Order would require the dischargers to complete the investigation and remediation of the site. If no significant comments are received, we plan to administratively issue the Order. The public comment period is closed.
