Is Midway City, CA tap water safe?
The short answer
None of the 4 utilities serving Midway City has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and California’s records.
City of Westminster, which serves the most people here, has 1 result 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 5.3 ppt, above EPA’s new limit, which takes effect in 2029.
The water from City of Westminster is hard to very hard depending on the source, 137 to 378 mg/L (8 to 22.1 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 Midway City’s ZIP codes, from EPA’s estimates.
- Open report
City of Westminster
California · serves 93,591 people · about 1,300 in Midway City
1 result 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 5.3 ppt, above EPA’s new limit, which takes effect in 2029. Hardness: hard to very hard depending on the source, 137 to 378 mg/L (8 to 22.1 grains per gallon).
No health-based violations since 2016
- Open report
Eastside Water Association
California · serves 2,000 people · about 1,100 in Midway City
2 results above the health goal. The worst: Arsenic at 5.2 ppb, above the health goal. Hardness: very hard, 181 mg/L (10.6 grains per gallon).
No health-based violations since 2016
- Open report
Midway City Mutual WC
California · serves 1,305 people · about 880 in Midway City
2 results above the health goal. The worst: Arsenic at 2.6 ppb, above the health goal. Hardness: hard, 164 mg/L (9.6 grains per gallon).
No health-based violations since 2016
- Open report
South Midway City Mutual Water Co.
California · serves 891 people · about 750 in Midway City
2 results above the health goal. The worst: Uranium at 11.4 ppb, above the health goal. Hardness: very hard, 257 mg/L (15 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 City of Westminster’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: PFOS, Lead, 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: PFOS, Lead, 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: PFOS, Lead, Arsenic
Water testing near Midway City
The 3 labs California certifies closest to Midway City, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
LA Testing
Huntington Beach, CA · about 3 miles
Certified for lead and copper, metals
Food Microbiological Laboratories, Inc.
Cypress, CA · about 5 miles
Certified for bacteria
Envirocheck, Inc.
Orange, CA · about 7 miles
Certified for lead and copper
ZIP codes in Midway City
Which ZIP codes are in Midway City: 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 Midway City
Other towns in Orange County with a page of their own.
What to do next
- Read City of Westminster’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- Filters for PFOSRanked by certification and what they cost over five years.The best water filters for PFAS, ranked
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water