Marin Municipal Water District looks to update grey water rules
Installing drought-tolerant landscaping or using recycled water for irrigation could become substitutes for grey water systems under a proposal from the Marin Municipal Water District. The district’s communications and water efficiency committee has endorsed a proposal that will overhaul the grey water ordinance that was adopted in 2016. Grey water is wastewater from bathtubs, showers, bathroom sinks and clothes washers. The existing ordinance states that applicants seeking new water service, and projects requesting expanded water service for large residential or commercial remodels, must install a grey water recycling system for landscape irrigation. However, the district allowed customers to self-certify whether a grey water system was feasible, resulting in many owners of eligible sites exempting their properties, staff said.