Is Los Molinos, CA tap water safe?
The short answer
2 of the 2 utilities serving Los Molinos have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and California’s records: Los Molinos Comm. Services Dist. and Riverside Crossing MHP.
Los Molinos Comm. Services Dist., which serves the most people here, has 1 result above the legal limit and 1 result above the health goal. The worst: Arsenic at 9.2 ppb, above the legal limit.
The water from Los Molinos Comm. Services Dist. is soft to moderately hard depending on the source, 6.6 to 80 mg/L (0.4 to 4.7 grains per gallon). How California’s water compares.
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 Los Molinos’s ZIP codes, from EPA’s estimates.
- Open report
Los Molinos Comm. Services Dist.
California · serves 1,450 people · under 100 in Los Molinos
1 result above the legal limit and 1 result above the health goal. The worst: Arsenic at 9.2 ppb, above the legal limit. Hardness: soft to moderately hard depending on the source, 6.6 to 80 mg/L (0.4 to 4.7 grains per gallon).
12 health-based violations since 2016
- Open report
Riverside Crossing MHP
California · serves 41 people · based in Los Molinos
1 result above the health goal. The worst: Arsenic at 8.0 ppb, above the health goal. Hardness: moderately hard, 108 mg/L (6.3 grains per gallon).
1 health-based violation since 2016
What handles it
Each of these is certified, on a certifier’s listing, for a result above a line in Los Molinos Comm. Services Dist.’s water, which serves the most people here. Another utility’s report names what handles its own results.
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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 Los Molinos
The 2 labs California certifies closest to Los Molinos, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Fruit Growers Laboratory, Inc.
Chico, CA · about 27 miles
Certified for bacteria
Pace Analytical Services, LLC - Redding
Redding, CA · about 37 miles
Certified for bacteria
ZIP codes in Los Molinos
Which ZIP codes are in Los Molinos: 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 Los Molinos
Other towns in Tehama County with a page of their own.
What to do next
- Read Los Molinos Comm. Services Dist.’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