City of Anaheim water quality
Anaheim, CA · serves 350,254 people (62,386 connections) · Surface water · Local government · EPA ID CA3010001
Data: U.S. EPA · How we read the data · How we check it
Buys water from City of Fullerton, City of Garden Grove, Yorba Linda Water District, Metropolitan Water District of SO. Cal., City of Orange, Golden State Water Company – Placentia/Yorba Linda. Treated water bought from another system can carry that system's contaminants.
Summary
PFAS above the 2024 federal limits. Systems have until 2029 to meet the PFAS limits.
Is it an emergency? No: PFAS limits are about years of exposure, not a glass of water, and nothing in EPA's data calls for you to stop drinking the water today. If your utility ever issues a boil-water or do-not-drink notice, follow it.
- PFAS
- Above limitPFOA, PFOS above the federal limit in EPA's 2023–2025 testing (PFOA 8 ppt vs a limit of 4 ppt, PFOS 17.9 ppt vs a limit of 4 ppt, where ppt = parts per trillion).
- Lithium
- Above screening levelHighest result 61 ppb. EPA uses 10 ppb to decide what to study further. It is not a health limit, and there is no federal limit for lithium. About 1 in 4 systems tested were above it.
- Lead
- Below action level0 ppb (parts per billion) at the 90th percentile: 9 in 10 homes sampled were at or below it. Action level 15 ppb, falling to 10 ppb in Nov 2027. Monitoring period ending Dec 2024. Your home's pipes can make yours higher.
- Violations
- None health-basedNo health-based violations since 2016.
- Pregnant, or mixing baby formula with tap water? Babies drink more water for their size, so PFAS exposure matters more for them. Consider bottled water or a filter certified for PFAS for formula, and ask your doctor. Health effects.
- To lower your PFAS exposure now, a home filter certified for PFAS reduction works (reverse osmosis, or activated carbon certified to NSF/ANSI 53 or 58). Filters for these results.
- Built before 1986, or not sure what your service line is made of? Check your service line and test your tap. Utility data can't show your pipes.
- Tested your own tap? Compare your result with these numbers. Moving? Compare this system with another.
- Read City of Anaheim's annual water quality report (Consumer Confidence Report). It lists every regulated contaminant tested and is usually on the utility's website or mailed with your bill, and you can also request it at (714) 765-4268. EPA: how to find it.
PFAS (“forever chemicals”)
EPA UCMR 5: 17 entry points tested Mar 2023 to Apr 2026. "Average" is the highest entry-point average (non-detects counted as zero), the way EPA compares UCMR 5 results to the limits. ppt = parts per trillion. These results do not determine compliance.
| Contaminant | Highest average |
|---|---|
| PFOA Above limit Limit 4 ppt | 8 ppt 2× the limit |
| PFOS Above limit Limit 4 ppt | 17.9 ppt 4.46× the limit |
| PFHxS Detected, below limit Limit 10 ppt | 10 ppt at the limit |
| PFNA Not detected Limit 10 ppt | – |
| HFPO-DA (GenX) Not detected Limit 10 ppt | – |
| Hazard Index (a combined score for PFHxS, PFNA, GenX and PFBS, where above 1 is over the limit) Rounds to the limit Limit 1 | 1 |
| PFBS Detected, below limit Guideline 2,000 ppt | 1.7 ppt |
| PFBA Detected, below limit Guideline 6,000 ppt | 16 ppt |
| PFHxA Detected, below limit Guideline 3,000 ppt | 3.85 ppt |
| PFPeA Detected, no limit | 11.3 ppt |
Why "rounds to the limit"? the Hazard Index (1) is slightly above the number on paper, but EPA compares results after rounding to the limit's precision (4.4 ppt rounds to 4), so it meets the limit as EPA applies it. Close enough to the limit to be worth watching.
What the utility says it is doing: An article co-authored by Anaheim Public Utilities' water engineering manager says ion exchange treatment for 14 wells at nine sites was completed in 2024 (Phase A by July, Phase B by November), and that PFAS were not being detected in treated water.
Source: Anaheim, California, treatment plants remove PFAS from drinking water (Civil Engineering magazine) (news report), 2026-01. Collected by us on Nov 14, 2026, not from EPA's data. Ask the utility for the latest.
For context: the PFOA average is higher than at 94% of the California systems EPA tested and the PFOS average is higher than at 95% of the California systems EPA tested.
29 PFAS tested, 7 detected at least once. "Not detected" means below EPA's reporting limit (about 2 to 20 ppt depending on the chemical), not proven zero. PFAS not listed were not detected. The limits for PFHxS, PFNA, GenX and the Hazard Index were proposed for rescission in May 2026. That proposal is not final. Systems have until 2029 to meet the limits.
Lithium
Detected in 12 of 39 samples. Highest result 61 ppb. EPA's non-enforceable screening level is 10 ppb. Above screening level The screening level is how EPA decides what to study further, not a health limit. There is no federal limit for lithium and no filter is certified to remove it. About lithium.
Lead and copper
Latest 90th percentile: 0 ppb lead (Jan 2022 – Dec 2024). Below action level
Highest since 2016: 2 ppb (Dec 2018).
| Monitoring period | Lead (90th pct.) |
|---|---|
| Jan 2022 – Dec 2024 | 0 ppb |
| Jan 2019 – Dec 2021 | 0 ppb |
| Jan 2016 – Dec 2018 | 2 ppb |
Earlier results (9)
| Jan 2013 – Dec 2015 | 0 ppb |
| Jan 2010 – Dec 2012 | 0 ppb |
| Jan 2007 – Dec 2009 | 0 ppb |
| Jan 2004 – Dec 2006 | 0 ppb |
| Jan 2003 – Dec 2005 | 0 ppb |
| Jan 2003 – Dec 2003 | 5 ppb |
| Jan 2001 – Dec 2003 | 0 ppb |
| Jan 2000 – Dec 2000 | 5 ppb |
| Jan 1998 – Dec 2000 | 0 ppb |
Lead service lines: City of Anaheim publishes a service line inventory where you can look up what your line is made of. It doesn't publish summary counts.
Look up your address · Source (the utility, collected by us on Nov 14, 2026, not EPA data) · Checking your own line
Lead comes from pipes and fixtures, not the source water, so it varies home to home. The 90th percentile means 9 in 10 sampled homes were at or below it. More on lead.
Violations
Health-based violations mean a contaminant exceeded a limit or a required treatment step was missed. Monitoring and reporting violations mean required tests or reports were late or missing, so the water's quality during that time is unknown. The total includes every violation in EPA's records, most of them paperwork.
Earlier EPA testing (2013–2020)
| Contaminant | Highest | Guideline |
|---|---|---|
| Manganese | 4.11 ppb | 300 ppb |
| Strontium | 1.2 ppm | 1.5 ppm |
| 1,4-Dioxane | 0.64 ppb | 0.35 ppb |
| Vanadium | 6 ppb | 21 ppb |
| Molybdenum | 6.1 ppb | 40 ppb |
| Chromium-6 | 2.29 ppb | – |
| Chlorate | 622 ppb | 210 ppb |
Where it serves
ZIP codes the system reported serving: 92801, 92802, 92803, 92804, 92805, 92806, 92807, 92808
Nearby utilities
- Golden State Water Company – Placentia/Yorba Linda Yorba Linda · 2 mi · PFAS above limit
- Yorba Linda Water District Yorba Linda · 2 mi
- City of Chino Hills Chino Hills · 6 mi
- City of Orange Orange · 8 mi · PFAS above limit
- City of Tustin Tustin · 9 mi
- City of Fullerton Fullerton · 10 mi · PFAS above limit
Questions
Is City of Anaheim water safe to drink?
City of Anaheim has no health-based violations since 2016. EPA testing found PFAS above the 2024 federal limits, which systems must meet by 2029. Federal data can't tell you about your own pipes: lead comes from service lines and plumbing, so test your tap if your home was built before 1986. For the official word, read the utility's annual Consumer Confidence Report.
Does City of Anaheim water have PFAS?
Yes. EPA's 2023–2025 testing of City of Anaheim found 7 PFAS at least once. The highest entry-point averages were above the federal limit for PFOA and PFOS: PFOA 8 ppt, PFOS 17.9 ppt (limit 4 ppt for PFOA and PFOS, 10 ppt for the others).
What is the lead level in City of Anaheim water?
The most recent 90th-percentile lead result for City of Anaheim is 0 ppb, for the period ending Dec 2024. The federal action level is 15 ppb, falling to 10 ppb in November 2027. The 90th percentile means 9 in 10 homes sampled were at or below this number. Individual homes can be higher.
Check these numbers yourself
Every figure on this page comes from public EPA records. You don't have to take our word for it:
- EPA's own report for CA3010001: violations, enforcement and inspections, straight from EPA.
- EPA UCMR 5 data: the PFAS and lithium results (search the file for PWSID CA3010001).
- EPA SDWIS download: the lead results, population and violation records we use.
- The utility's annual water quality report (Consumer Confidence Report): ask City of Anaheim at (714) 765-4268, or see EPA's guide to finding it.
- City of Anaheim website
Found something that doesn't match? Tell us and we'll check it against EPA's records. How we check our data.
Source: U.S. EPA drinking water records and PFAS testing (UCMR 5). How we read the data.