The City of Santa Rosa Laguna Treatment Plant (LTP) meets state tertiary treatment requirements and processes two valuable end products: highly treated effluent and biosolids. The effluent is either discharged to Laguna de Santa Rosa, sent to holding ponds for agricultural irrigation, or sent to the Geysers Recharge Project. The biosolids are either recycled to agricultural land as a soil amendment, sent to the compost facility to be composted for use as a soil conditioner, sent to the alpha farm storage facility, or sent to landfill if no other solution is available. The City is committed to continually improving all aspects of the biosolids management program. The City is committed to proactively addressing the challenges that will be encountered with respect to biosolids management in the future, especially changing regulations.

New, Reduced Membership Dues

A new, reduced dues rate is available for CAOs/ACAOs, along with additional discounts for those in smaller communities, has been implemented. Learn more and be sure to join or renew today!

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