![]() ![]() OMWD is committed to providing safe, reliable drinking water for its customers. According to the California State Water Resources Control Board, most people are exposed to PFAS through food – via food packaging, farming processes, or bioaccumulation (gradual chemical buildup). PFAS chemicals are present in products such as makeup, food wrappers, nonstick cookware, carpets, stain repellants, and fire retardants. The chemicals were initially developed in the 1940s and were designed to be nearly indestructible over time. PFAS, short for per- and polyfluoroalkyl substances, are a group of more than 4,700 synthetic chemicals created to repel water, oil, grease, and stains. This sort of softening system is generally in compliance with local sewer regulations and is recommended over a brine system. These services involve replacing canisters of softening agents on a regular basis. ![]() There are companies that provide softening services that regenerate the softening agents off-site. Contact your local sewer agency for details. There are many local sewer agencies that prohibit the discharge of these brine wastes into the sewer. Salt-based water softeners usually regenerate softeners at night and discharge a brine waste to the sewer during this process. If you are setting up a dishwasher, water softener, or other appliance requiring you to indicate the hardness/softness of your water, these are the values you should use. Our hardness values run up to about 250 PPM (parts per million) which is equivalent to approximately 15 GPG (grains per gallon). As a result, the water delivered by OMWD is considered to be quite hard. ![]() Due to the long distances of travel before this water reaches your tap, evaporative losses increase the hardness of the water. OMWD’s potable water is imported from Northern California and the Colorado River. These minerals can be reduced using softeners, although the reduction of these minerals does not provide any health benefits. Though the presence of these minerals may make lathering with soap difficult or leave spots on dishes, hard water is safe to drink. Water is considered hard when it contains high concentrations of calcium and magnesium. To protect water quality in its potable water system, OMWD enforces rules and regulations in accordance with all state and federal standards. To learn more about the quality of your drinking water, please view our Consumer Confidence Report as well as our lead and copper, fluoride, and backflow pages. Skinner Treatment Plant and SDCWA’s Claude “Bud” Lewis Desalination Plant or its Twin Oaks Valley Water Treatment Plant. OMWD customers receive water treated primarily at the DCMWTP, but may occasionally be served water treated at MWD’s Robert A. McCollom Water Treatment Plant allows for local treatment of raw water, which is less expensive than purchasing water treated elsewhere. MWD imports its water from two sources: a 242 mile-long aqueduct, which transports Colorado River water from Lake Havasu to Southern California and a 444 mile-long aqueduct that transports water from the Sacramento-San Joaquin Delta in Northern California to Lake Skinner in Riverside County. MWD is a wholesaler that provides water to over 19 million people living in Southern California. SDCWA in turn purchases its water from Metropolitan Water District of Southern California. Olivenhain Municipal Water District is a member of the San Diego County Water Authority, and thus purchases all of its water supply from SDCWA. McCollom Water Treatment Plant Olivenhain Water Storage Project Cross-Connection Control Water Quality & Water Hardness PFAS David C. ![]()
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