Tap Water Results

Is Woodland, CA tap water safe?

Supplied by City of Woodland · serves 61,462 people (17,487 connections) · Purchased surface water · EPA ID CA5710006

Data: U.S. EPA · How we read the data · How we check it

Most of Woodland gets its water from City of Woodland. Parts of the city are served by a smaller system: Woodland-Davis Clean Water Agency (Wholesale supplier (sells water to other systems)). Your water bill names your system.

Buys water from Woodland-Davis Clean Water Agency. Treated water bought from another system can carry that system's contaminants.

Summary

No federal limits exceeded in EPA data.

PFAS
Not detectedNone of 29 PFAS found above EPA's reporting limits in 24 samples (2023–2025).
Lithium
Above screening levelHighest result 46.1 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 2025. Your home's pipes can make yours higher.
Violations
None health-basedNo health-based violations since 2016.
What you can do

PFAS (“forever chemicals”)

EPA UCMR 5: 8 entry points tested Apr 2024 to Mar 2025. "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.

ContaminantHighest averageHighest resultLimitStatus
PFOA
Not detected
Limit 4 ppt
––4 pptNot detected
PFOS
Not detected
Limit 4 ppt
––4 pptNot detected
PFHxS
Not detected
Limit 10 ppt
––10 pptNot detected
PFNA
Not detected
Limit 10 ppt
––10 pptNot detected
HFPO-DA (GenX)
Not detected
Limit 10 ppt
––10 pptNot detected
Hazard Index (a combined score for PFHxS, PFNA, GenX and PFBS, where above 1 is over the limit)
Not detected
Limit 1
––1Not detected
PFBS
Not detected
Guideline 2,000 ppt
––2,000 ppt guidelineNot detected
PFBA
Not detected
Guideline 6,000 ppt
––6,000 ppt guidelineNot detected
PFHxA
Not detected
Guideline 3,000 ppt
––3,000 ppt guidelineNot detected

29 PFAS tested, 0 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 8 of 24 samples. Highest result 46.1 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 2023 – Dec 2025). Below action level

Monitoring periodLead (90th pct.)
Jan 2023 – Dec 20250 ppb
Jan 2020 – Dec 20220 ppb
Jan 2019 – Dec 20190 ppb
Earlier results (9)
Jan 2017 – Dec 20190 ppb
Jul 2016 – Dec 20160 ppb
Jan 2011 – Dec 20130 ppb
Jan 2008 – Dec 20100 ppb
Jan 2005 – Dec 20076.1 ppb
Jan 2004 – Dec 20049 ppb
Jan 2001 – Dec 20032 ppb
Jan 2001 – Dec 20012.5 ppb
Jan 1998 – Dec 20002 ppb

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

0
Health-based since 2016
0
Monitoring/reporting since 2016
0
Health-based unresolved now
3
Total ever recorded, incl. paperwork

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)

ContaminantHighestGuidelineDetectedTested
Manganese13 ppb300 ppb15 of 20UCMR 4 (2020)
Strontium1.1 ppm1.5 ppm54 of 54UCMR 3 (2015)
Chlorate380 ppb210 ppb54 of 54UCMR 3 (2014)
Vanadium15 ppb21 ppb54 of 54UCMR 3 (2015)
Molybdenum3.5 ppb40 ppb4 of 54UCMR 3 (2015)
Chromium-626 ppb–54 of 54UCMR 3 (2014)
1,4-Dioxane0.094 ppb0.35 ppb2 of 32UCMR 3 (2015)

Where it serves

Woodland

ZIP codes the system reported serving: 95695, 95776

Nearby utilities

Questions

Is Woodland tap water safe to drink?

Most of Woodland gets its water from City of Woodland. City of Woodland has no health-based violations since 2016. EPA testing found no PFAS above the federal limits. 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 Woodland water have PFAS?

EPA tested City of Woodland for 29 PFAS between Apr 2024 and Mar 2025 and none were detected above the reporting limits (about 2 to 20 ppt depending on the chemical).

What is the lead level in Woodland water?

The most recent 90th-percentile lead result for City of Woodland is 0 ppb, for the period ending Dec 2025. 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:

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.