Is San Simeon, CA tap water safe?
The short answer
2 of the 2 utilities serving San Simeon have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and California’s records: San Simeon CSD and Gran Cielo Mutual Water Company.
San Simeon CSD, which serves the most people here, has 1 result above the action level. The worst: Lead at 45 ppb, above the action level.
A town can be served by more than one utility, and some homes are on private wells. The name on your water bill tells you which is yours, and your ZIP code narrows it down. They are listed by how many people each serves in San Simeon’s ZIP codes, from EPA’s estimates.
- Open report
San Simeon CSD
California · serves 462 people · under 100 in San Simeon
1 result above the action level. The worst: Lead at 45 ppb, above the action level.
3 health-based violations since 2016
- Open report
Gran Cielo Mutual Water Company
California · serves 139 people · lists San Simeon among the places it serves
1 result above the action level and 1 result above the limit’s level with no violation recorded. The worst: Lead at 21 ppb, above the action level. Hardness: moderately hard to hard depending on the source, 91 to 135 mg/L (5.3 to 7.9 grains per gallon).
No health-based violations since 2016
What handles it
Each of these is certified, on a certifier’s listing, for a result above a line in San Simeon CSD’s water, which serves the most people here. Another utility’s report names what handles its own results.
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Brita Tahoe Pitcher with Elite Filter (OB60, OB06)
Pitcher
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 13, 2026
- IAPMO listing:NSF/ANSI 53checked Oct. 13, 2026
Certified for: Lead
Brita Everyday Pitcher with Elite Filter (OB46, OB06)
Pitcher
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 13, 2026
Certified for: Lead
PUR PLUS 11-Cup Pitcher (PPT111W)
Pitcher
- NSF listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 4, 2026
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 4, 2026
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 4, 2026
Certified for: Lead
Water testing near San Simeon
The 3 labs California certifies closest to San Simeon, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
County of San Luis Obispo Public Health Laboratory
San Luis Obispo, CA · about 46 miles
Certified for bacteria
Fruit Growers Laboratory, Inc.
San Luis Obispo, CA · about 46 miles
Certified for bacteria
Abalone Coast Analytical, Inc.
San Luis Obispo, CA · about 47 miles
Certified for bacteria
ZIP codes in San Simeon
Which ZIP codes are in San Simeon: Census 2020 relationship files. Which utilities serve them, and how many people: EPA SDWIS and EPA’s service area map. Each utility’s results: EPA UCMR 5, EPA SDWIS, and EPA’s and the state’s compliance monitoring, as its report lists them. How they are measured: methodology. Certified labs: California State Water Resources Control Board, ELAP accredited laboratories and their fields of accreditation; distances from the Census 2020 ZIP code tabulation area gazetteer.
Near San Simeon
Other towns in San Luis Obispo County with a page of their own.
What to do next
- Read San Simeon CSD’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- Filters for LeadRanked by certification and what they cost over five years.The best water filters for lead, ranked
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water