ZipCheckup grade for 95211: B.
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Your top priority: use a filter certified to reduce PFAS; check which ones. Check your ZIP → EPA PFAS info
Stockton, CA (95211): PFAS Detected in Mapped Water Systems - 83/100
EPA data for California Water Service - Stockton
EPA records for the water systems mapped to 95211 in Stockton, CA contain zero recorded violations for inclusive record years 2021 through 2026. This does not establish that every category was monitored or published, and it does not cover events outside that source window.
Data source: U.S. Environmental Protection Agency (EPA) SDWIS
At a Glance
- Water No drinking-water violations in EPA records since 2021.
- Lead The reported 90th-percentile lead result is below the laboratory reporting limit, not a measured zero; EPA's health goal for lead is zero.
- PFAS At least one PFAS result is above an EPA MCL value (UCMR5 sampling; MCL compliance required from 2029).
- Radon EPA Zone 3 - county-level radon potential, not evidence of a low home result.
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Stockton (95211): one critical alert.
Score Breakdown
Overall Home Safety Score: 83/100
This is the published model score. Component and domain values are shown independently; they are not added together on this page.
Canonical components
Required domains
Coverage: 4 of 4 components and 3 of 3 domains observed.
Model 4.0.0; series home-safety-v4-cross-vertical.
Safety & Health (7) HIGH
Your Water System
ZIP code 95211 in Stockton, California is mapped to the water system California Water Service - Stockton (EPA ID: CA3910001). This system provides water to approximately 176,266 people from surface water sources.
Other Water Quality Reports in California
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Nearby Water Quality Reports
- 95204 (Stockton) - <1 mi
- 95267 (Stockton) - 1 mi
- 95207 (Stockton) - 2 mi - 4 violations recorded for mapped water systems
- 95297 (Stockton) - 2 mi
- 95202 (Stockton) - 2 mi
- 95203 (Stockton) - 2 mi
- 95296 (Stockton) - 2 mi
- 95201 (Stockton) - 2 mi
- 95269 (Stockton) - 3 mi
- 95205 (Stockton) - 3 mi - 4 violations recorded for mapped water systems
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for California Water Service - Stockton (CA3910001) on EPA.gov.
3 of the top compounds applied across the surrounding county in USGS pesticide-use estimates appear on EPA drinking-water monitoring lists. See the agricultural pesticide-use section.
PFAS Contamination Detected
PFAS ("forever chemicals") have been reported in samples from water systems associated with ZIP code 95211. One or more compound results are above the level of a federal PFAS MCL with compliance required from 2029.
Detected compounds: PFOS.
Highest measured level: 0.0052 µg/L
Reverse osmosis (RO) and activated carbon block filters can reduce PFAS at the tap. Certifications list the compounds covered: an NSF/ANSI 53 or 58 claim for PFOA/PFOS does not cover every PFAS, so check that the product lists the compounds detected here.
Environmental Hazards (9) CRITICAL
Home & Infrastructure (2) OK
Cost & Community (6) OK
CPSC product recall notices
These national notices are not matched to this ZIP code or water system.
Protect Your Home in Stockton
Based on local data for ZIP 95211, these services may benefit homeowners in your area.
Based on local data for your area. Use the tools below to explore your options.
Roofing Inspection & Repair
Active weather alerts in California increase the risk of roof damage from hail and high winds. A professional inspection can identify vulnerabilities.
Typical cost: Roof inspection: typically $75–$300; repairs $300–$1,500
Estimate Your Home Insurance NeedsService recommendations are based on public data for this ZIP code (FEMA, Census ACS, NWS). Actual needs vary by property. By calling, your information will be shared with an independent service provider. ZipCheckup may receive compensation. Cost estimates are approximate and vary by property, condition, and contractor.
Frequently Asked Questions
Is the tap water in 95211 safe to drink?
EPA SDWIS records 0 violations since 2021 across the water systems mapped to ZIP 95211 (primary system: California Water Service - Stockton), including 0 health-based. The violation table above shows which system each record belongs to. ZipCheckup last updated this page in July 2026. The federal source release date is unavailable, so that month is not presented as source currency.
Where does 95211's water come from?
The recorded water source for California Water Service - Stockton, a system mapped to ZIP code 95211, is Surface water. This system serves approximately 176,266 people.
How does Stockton water compare to the national average?
Stockton's Home Safety Score ranks better than 67% of U.S. ZIP codes, and at or above 67% within California.
How can I get my water tested in Stockton?
If California Water Service - Stockton supplies your home, contact it for its Consumer Confidence Report; otherwise contact the water utility that serves your address, or hire a certified lab for independent home water testing. The EPA recommends annual testing if you use a private well.
What is the radon risk for 95211?
95211 is mapped to a county in EPA Radon Zone 3 (low county-level radon potential; EPA recommends testing every home), located in San Joaquin County. EPA radon zones range from Zone 1 (highest county-level potential) to Zone 3 (lowest). Testing your home is recommended regardless of zone.
Are there PFAS (forever chemicals) in 95211's water?
Yes, PFAS have been detected in samples from water systems mapped to 95211. One or more PFAS results are above the level of a federal PFAS MCL with compliance required from 2029. Reverse osmosis and activated carbon filters certified to NSF/ANSI 53 or 58 specifically for PFOA/PFOS reduction can reduce PFAS.
How to cite this page
ZipCheckup. (2026). Stockton, CA (95211): PFAS Detected in Mapped Water Systems - 83/100. https://zipcheckup.com/report/95211/
@misc{zipcheckup-report-95211,
author = {{ZipCheckup}},
title = {{Stockton, CA (95211): PFAS Detected in Mapped Water Systems - 83/100}},
year = {2026},
url = {https://zipcheckup.com/report/95211/}
}
Page version: October 2026.
Nearby ZIP Code Reports
Water quality comparison for ZIP codes near 95211
| ZIP Code | City, State | Distance | Grade | Violations |
|---|---|---|---|---|
| 95204 | Stockton, CA | <1 mi | B | 0 |
| 95267 | Stockton, CA | 1.4 mi | N/A | 0 |
| 95207 | Stockton, CA | 1.6 mi | B | 4 |
| 95297 | Stockton, CA | 1.7 mi | N/A | 0 |
| 95202 | Stockton, CA | 1.9 mi | B | 0 |
| 95203 | Stockton, CA | 1.9 mi | B | 0 |
| 95296 | Stockton, CA | 1.9 mi | N/A | 0 |
| 95201 | Stockton, CA | 2.0 mi | N/A | 0 |
| 95269 | Stockton, CA | 2.7 mi | N/A | 0 |
| 95205 | Stockton, CA | 2.9 mi | B | 4 |
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