Pacific Palisades Water Hardness & Quality Report (2026)

Pacific Palisades, California, in Los Angeles County along the Pacific Coast Highway between Santa Monica and Malibu — one of Los Angeles's most exclusive coastal neighborhoods, known for its stunning ocean canyon topography, celebrity residents, and proximity to Will Rogers State Historic Park — receives its municipal water from the Los Angeles Department of Water and Power (LADWP), which blends multiple sources: the Colorado River Aqueduct (delivered via the Metropolitan Water District), the State Water Project (Feather River/Sacramento-San Joaquin Delta), and local San Fernando Valley basin groundwater from the LA Basin aquifer.

The moderately soft 100 mg/L hardness and TDS of 249.9 mg/L reflect the Pacific Palisades distribution zone's supply blend character. The LADWP supplies the west side of Los Angeles with a mix that typically favors more State Water Project soft supply relative to the harder Colorado River content — the SWP's central California origin in the Sierra Nevada and Klamath Mountain crystalline terrains produces water with much lower hardness (~50–80 mg/L) than the Colorado Plateau's carbonate-laden supply (~180–260 mg/L). The Pacific Palisades coastal service zone, fed from LADWP's west LA distribution network, achieves a moderately soft blend.

At 100 mg/L, Pacific Palisades' water is moderately soft — comfortable for everyday household use in this upscale coastal community. Scale forms gradually in kettles and appliances over several months, soap lathers well, and the dishwasher produces clean results without special treatment. Quarterly descaling of heating appliances is adequate. The PFAS level of 4.8 ppt is favorable for Los Angeles — Pacific Palisades' limited industrial land use and the coastal ocean environment keep PFAS below the higher levels found in the San Fernando Valley and inland LA communities.