Is Strawberry, CA tap water safe?
The short answer
Marin Municipal Water District serves Strawberry. In EPA’s and California’s records it has 1 result above the health goal, and no health-based violation since 2016.
The worst: Arsenic at 0.27 ppb, above the health goal. Health goals are stricter than legal limits and are not enforced.
The water from Marin Municipal Water District is soft to moderately hard depending on the source, 53 to 117 mg/L (3.1 to 6.8 grains per gallon). How California’s water compares.
Some homes in a town are on private wells or a small system of their own. The name on your water bill tells you which is yours.
What handles it
Each of these is certified, on a certifier’s listing, for a result above a line in Marin Municipal Water District’s water.
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Countertop reverse osmosis
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 4, 2026
Certified for: Arsenic
Aquasana SmartFlow Reverse Osmosis (AQ-SFRO2)
Under-sink reverse osmosis
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 9, 2026
Certified for: Arsenic
Brondell Capella RC250 Reverse Osmosis System
Under-sink reverse osmosis
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 9, 2026
Certified for: Arsenic
Water testing near Strawberry
The 3 labs California certifies closest to Strawberry, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
McCampbell Analytical, Inc.
Pittsburg, CA · about 13 miles
Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts, PFAS
Precision Enviro-Tech
Stockton, CA · about 21 miles
Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics
San Joaquin County Public Health Laboratory
Stockton, CA · about 23 miles
Certified for bacteria
Which ZIP codes are in Strawberry: 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 Strawberry
Other towns in Marin County with a page of their own.
What to do next
- Read Marin Municipal Water District’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- Filters for ArsenicRanked by certification and what they cost over five years.The best reverse osmosis systems, ranked
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water