Is Running Springs, CA tap water safe?
The short answer
1 of the 4 utilities serving Running Springs has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and California’s records: Smiley Park Country Club.
Clawa, which serves the most people here, has 2 results above the health goal. The worst: Arsenic at 1.6 ppb, above the health goal. Health goals are stricter than legal limits and are not enforced.
The water from Clawa is moderately hard, typically 88 mg/L (5.1 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 Running Springs’s ZIP codes, from EPA’s estimates.
- Open report
Clawa
California · serves 2,320 people · about 610 in Running Springs
2 results above the health goal. The worst: Arsenic at 1.6 ppb, above the health goal. Hardness: moderately hard, typically 88 mg/L (5.1 grains per gallon).
No health-based violations since 2016
- Open report
Running Springs Water District
California · serves 5,268 people · about 480 in Running Springs
3 results above EPA’s new limit, which takes effect in 2029, 3 results above the health goal and 1 result above EPA’s health benchmark. The worst: PFOS at 237 ppt, above EPA’s new limit, which takes effect in 2029. Hardness: soft to very hard depending on the source, 54 to 200 mg/L (3.2 to 11.7 grains per gallon).
No health-based violations since 2016
- Open report
Arrowbear Park CWD
California · serves 1,396 people · under 100 in Running Springs
1 result above the limit’s level with no violation recorded and 1 result above the health goal. The worst: Uranium at 84.9 ppb, above the limit’s level, no violation. Hardness: moderately hard, typically 100 mg/L (5.8 grains per gallon).
No health-based violations since 2016
- Open report
Smiley Park Country Club
California · serves 370 people · under 100 in Running Springs
2 results above the health goal. The worst: Lead at 6.1 ppb, above the health goal. Hardness: moderately hard, 104 mg/L (6.1 grains per gallon).
2 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 Clawa’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 Running Springs
The 3 labs California certifies closest to Running Springs, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
BSK Associates - San Bernardino Analytical Laboratory
San Bernardino, CA · about 14 miles
Certified for bacteria
Clinical Laboratory of San Bernardino, Inc.
Grand Terrace, CA · about 17 miles
Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts, radioactivity
Geo-Monitor, Inc
Hesperia, CA · about 20 miles
Certified for bacteria
ZIP codes in Running Springs
Which ZIP codes are in Running Springs: 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 Running Springs
Other towns in San Bernardino County with a page of their own.
What to do next
- Read Clawa’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