Is Goleta, CA tap water safe?
The short answer
2 of the 5 utilities serving Goleta have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and California’s records: Ellwood Mutual Water Company and El Capitan Mutual Water Company.
Goleta Water District, which serves the most people here, has 2 results above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 53.5 ppb, above EPA’s health benchmark. Health goals are stricter than legal limits and are not enforced.
The water from Goleta Water District is very hard, typically 485 mg/L (28.4 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 Goleta’s ZIP codes, from EPA’s estimates.
- Open report
Goleta Water District
California · serves 85,535 people · about 3,600 in Goleta
2 results above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 53.5 ppb, above EPA’s health benchmark. Hardness: very hard, typically 485 mg/L (28.4 grains per gallon).
No health-based violations since 2016
- Open report
Ellwood Mutual Water Company
California · serves 186 people · under 100 in Goleta
1 result above the limit’s level with no violation recorded and 1 result above the health goal. The worst: Total trihalomethanes (TTHM) at 122 ppb, above the limit’s level, no violation. Hardness: very hard, typically 603 mg/L (35.2 grains per gallon).
1 health-based violation since 2016
- Open report
El Capitan Mutual Water Company
California · serves 325 people · under 100 in Goleta
1 result above the health goal. The worst: Arsenic at 3.0 ppb, above the health goal. Hardness: moderately hard to very hard depending on the source, 104 to 709 mg/L (6.1 to 41.5 grains per gallon).
1 health-based violation since 2016
- Open report
El Rancho Tajiguas
California · serves 40 people · under 100 in Goleta
1 result above the health goal. The worst: Lead at 3.8 ppb, above the health goal. Hardness: very hard, typically 450 mg/L (26.3 grains per gallon).
No health-based violations since 2016
- Open report
Naples
California · serves 66 people · based in Goleta
2 results above the health goal. The worst: Arsenic at 2.4 ppb, above the health goal. Hardness: very hard, 370 mg/L (21.6 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 Goleta Water District’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 Goleta
The 3 labs California certifies closest to Goleta, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Clinical Laboratory of San Bernardino II
Lompoc, CA · about 31 miles
Certified for bacteria
Capco Analytical Services
Ventura, CA · about 43 miles
Certified for bacteria, nitrate, metals, minerals and other inorganics
Oilfield Environmental & Compliance Inc. (OEC)
Santa Maria, CA · about 45 miles
Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics
Which ZIP codes are in Goleta: 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 Goleta
Other towns in Santa Barbara County with a page of their own.
What to do next
- Read Goleta Water District’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- About LithiumWhat it does to health, where it comes from, and the certification claim that addresses it.About Lithium
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water