Dana Point Water Hardness & Quality Report (2026)

Dana Point, California, in Orange County — a major south Orange County coastal community (Dana Point is one of the premier coastal resort communities in Southern California — a major yachting, sport fishing, and whale watching destination, home of Dana Point Harbor, one of the largest small craft harbors in Southern California), named for Richard Henry Dana Jr. (the author of the famous 1840 memoir 'Two Years Before the Mast,' which described the early 19th century California coast from the perspective of a Harvard student who became a common sailor — Dana visited the site of Dana Point as a young sailor), home of the Ocean Institute (a major marine science education center at Dana Point Harbor), and a diverse Orange County community with a significant upscale residential and yachting culture — draws its municipal water supply via the Municipal Water District of Orange County (MWDOC). Water hardness in Dana Point measures 89 mg/L — classified as moderately soft.

Dana Point's moderate softness reflects the south Orange County MWD State Water Project-dominated supply and effective treatment. The MWDOC supply at Dana Point draws primarily from the MWD SWP supply (Sierra Nevada snowmelt — calcareous-poor, approximately 30–60 mg/L) with a smaller Colorado River blend, and distributes to the Dana Point coastal zone with effective treatment, producing the moderate 89 mg/L.

With hardness at 89 mg/L, Dana Point residents enjoy moderately soft water. MWDOC consistently delivers water meeting all California State Water Board and EPA Safe Drinking Water Act requirements.