Is Agua Dulce, CA tap water safe?
The short answer
2 of the 5 utilities serving Agua Dulce have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and California’s records: Green Valley CWD and North Trails Mutual Water Company.
Santa Clarita Valley Water Agency, which serves the most people here, has 2 results above EPA’s new limit, which takes effect in 2029, 2 results above the health goal and 1 result above EPA’s health benchmark. The worst: PFOA at 16.9 ppt, above EPA’s new limit, which takes effect in 2029.
The water from Santa Clarita Valley Water Agency is moderately hard to very hard depending on the source, 120 to 568 mg/L (7 to 33.2 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 Agua Dulce’s ZIP codes, from EPA’s estimates.
- Open report
Santa Clarita Valley Water Agency
California · serves 292,014 people · about 400 in Agua Dulce
2 results above EPA’s new limit, which takes effect in 2029, 2 results above the health goal and 1 result above EPA’s health benchmark. The worst: PFOA at 16.9 ppt, above EPA’s new limit, which takes effect in 2029. Hardness: moderately hard to very hard depending on the source, 120 to 568 mg/L (7 to 33.2 grains per gallon).
No health-based violations since 2016
- Open report
Green Valley CWD
California · serves 1,275 people · about 150 in Agua Dulce
2 results above the health goal. The worst: Nitrate at 25.4 ppm, above the health goal. Hardness: hard to very hard depending on the source, 150 to 304 mg/L (8.8 to 17.8 grains per gallon).
1 health-based violation since 2016
- Open report
Spv Water Company
California · serves 211 people · under 100 in Agua Dulce
1 result above the health goal. The worst: Uranium at 5.6 ppb, above the health goal. Hardness: very hard, typically 342 mg/L (20 grains per gallon).
No health-based violations since 2016
- Open report
North Trails Mutual Water Company
California · serves 100 people · under 100 in Agua Dulce
2 results above the legal limit, 1 result above the limit’s level with no violation recorded and 1 result above the health goal. The worst: Nitrate at 11.6 ppm, above the legal limit. Hardness: soft to hard depending on the source, 35 to 156 mg/L (2 to 9.1 grains per gallon).
16 health-based violations since 2016
- Open report
Casa Dulce Estates
California · serves 26 people · under 100 in Agua Dulce
1 result above the health goal. The worst: Arsenic at 7.0 ppb, above the health goal. Hardness: very hard, 235 mg/L (13.7 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 Santa Clarita Valley Water Agency’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: PFOA, PFOS, 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: PFOA, PFOS, 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: PFOA, PFOS, Arsenic
Water testing near Agua Dulce
The 3 labs California certifies closest to Agua Dulce, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Pat-Chem Laboratories
San Fernando, CA · about 18 miles
Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts, radioactivity
EMSL Analytical, Inc. (LA Testing)
South Pasadena, CA · about 33 miles
Certified for bacteria, asbestos
Positive Lab Service
Los Angeles, CA · about 37 miles
Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts
ZIP codes in Agua Dulce
Which ZIP codes are in Agua Dulce: 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 Agua Dulce
Other towns in Los Angeles County with a page of their own.
What to do next
- Read Santa Clarita Valley Water Agency’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- Filters for PFOARanked 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