Winton, CA (95388): 3 Health-Based Violations Recorded for Mapped Water Systems
EPA data combined for 5 water systems mapped to this ZIP (largest mapped system: Winton Water & Sanitary District)
Health-based violation records by water system:
EPA records for the water systems mapped to 95388 in Winton, CA contain 10 recorded violations for inclusive record years 2021 through 2026, all mapped systems combined; 3 are marked health-based.
Data source: U.S. Environmental Protection Agency (EPA) SDWIS
At a Glance
- Water EPA records for water systems mapped to this ZIP show 3 health-based violations and 7 non-health-based (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.
Get updates when new water-quality data is available for your area
Free alerts when new EPA data affects ZIP code 95388. No spam - just safety updates.
Unsubscribe anytime. We only send updates when your safety score changes. See our Privacy Policy.
See incorrect data? Let us know
Read each of the 2 critical-level cards below for 95388 in Winton - 0 high-priority findings follow them in the record.
Score Breakdown
Overall Home Safety Score: Score unavailable
Required evidence is missing. Missing values remain unknown and are not imputed or renormalized.
The score is withheld for this ZIP: a water system serving it has EPA UCMR5 PFAS results above the value of an EPA PFAS MCL (with compliance required from 2029), and the current score input does not include that system. We will show the score again once it is recalculated with that system's PFAS results included.
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) CRITICAL
Your Water System
ZIP code 95388 in Winton, California is mapped to the water system Winton Water & Sanitary District (EPA ID: CA2410010). This system provides water to approximately 9,745 people from groundwater sources.
There are 5 community water systems serving this area.
Water Systems Serving This Area
| System Name | EPA ID | Population | Source |
|---|---|---|---|
| Winton Water & Sanitary District | CA2410010 | 9,745 | Groundwater |
| City of Atwater | CA2410001 | 29,479 | Groundwater |
| Cal Am - Meadowbrook | CA2410008 | 5,656 | Groundwater |
| City of Livingston | CA2410004 | 14,894 | Groundwater |
| Castle Airport | CA2410700 | 1,650 | Groundwater |
Other Water Quality Reports in California
- 90001 (Los Angeles)
- 90002 (Los Angeles)
- 90003 (Los Angeles)
- 90004 (Los Angeles)
- 90005 (Los Angeles)
- 90006 (Los Angeles)
- 90007 (Los Angeles)
- 90008 (Los Angeles)
- 90009 (Los Angeles)
- 90010 (Los Angeles)
- 90011 (Los Angeles)
- 90012 (Los Angeles)
- 90013 (Los Angeles)
- 90014 (Los Angeles)
- 90015 (Los Angeles)
- 90016 (Los Angeles)
- 90017 (Los Angeles)
- 90018 (Los Angeles)
- 90019 (Los Angeles)
- 90020 (Los Angeles)
Nearby Water Quality Reports
- 95312 (Cressey) - 4 mi
- 95301 (Atwater) - 4 mi - 5 violations recorded for mapped water systems
- 95303 (Ballico) - 6 mi
- 95334 (Livingston) - 7 mi - 3 violations recorded for mapped water systems
- 95348 (Merced) - 7 mi
- 95343 (Merced) - 9 mi
- 95344 (Merced) - 9 mi
- 95315 (Delhi) - 10 mi - 15 violations recorded for mapped water systems
- 95340 (Merced) - 10 mi - 2 violations recorded for mapped water systems
- 95341 (Merced) - 13 mi - 2 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 Winton Water & Sanitary District (CA2410010) 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 95388. One or more compound results are above the level of a federal PFAS MCL with compliance required from 2029.
Detected compounds: PFHxS, PFOS, PFOA, PFPeA, PFHxA, 6:2 FTS, PFHpA, PFBA, PFPeS, PFBS.
Highest measured level: 0.059 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 (10) HIGH
Home & Infrastructure (6) MODERATE
Possible home maintenance concerns - talk to a local expert.
Call (855) 384-4856Paid Partner This is a free service. You will be connected with an independent service provider. We may receive compensation.
Cost & Community (9) HIGH
CPSC product recall notices
These national notices are not matched to this ZIP code or water system.
Protect Your Home in Winton
Based on local data for ZIP 95388, these services may benefit homeowners in your area.
Based on local data for your area. Use the tools below to explore your options.
Gutter Installation & Repair
The median home in 95388 was built around 1971. Aging gutters can cause foundation damage, basement flooding, and mold - a professional assessment can prevent costly repairs.
Typical cost: Gutter installation: typically $1,000–$2,500 for a standard home
Estimate Your Home Maintenance CostsWindow Replacement
The median build year of homes in Winton is 1971; check the age and condition of your own windows. ENERGY STAR windows can save $101–$583/year on energy bills.
Typical cost: Window replacement: typically $300–$800 per window installed
Estimate Your Home Maintenance CostsRoofing Inspection & Repair
Homes built around 1971 may be on their second or third roof. A professional inspection can catch damage before leaks start.
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 95388 safe to drink?
EPA SDWIS records 10 violations since 2021 across the water systems mapped to ZIP 95388 (primary system: Winton Water & Sanitary District), including 3 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 95388's water come from?
The recorded water source for Winton Water & Sanitary District, a system mapped to ZIP code 95388, is Groundwater. This system serves approximately 9,745 people.
How can I get my water tested in Winton?
If Winton Water & Sanitary District 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 95388?
95388 is mapped to a county in EPA Radon Zone 3 (low county-level radon potential; EPA recommends testing every home), located in Merced 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 95388's water?
Yes, PFAS have been detected in samples from water systems mapped to 95388. 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). Winton, CA (95388): 3 Health-Based Violations Recorded for Mapped Water Systems. https://zipcheckup.com/report/95388/
@misc{zipcheckup-report-95388,
author = {{ZipCheckup}},
title = {{Winton, CA (95388): 3 Health-Based Violations Recorded for Mapped Water Systems}},
year = {2026},
url = {https://zipcheckup.com/report/95388/}
}
Page version: October 2026.
Nearby ZIP Code Reports
Water quality comparison for ZIP codes near 95388
| ZIP Code | City, State | Distance | Grade | Violations |
|---|---|---|---|---|
| 95312 | Cressey, CA | 3.6 mi | N/A | 0 |
| 95301 | Atwater, CA | 3.6 mi | B | 5 |
| 95303 | Ballico, CA | 6.1 mi | N/A | 0 |
| 95334 | Livingston, CA | 6.8 mi | A | 3 |
| 95348 | Merced, CA | 7.2 mi | B | 0 |
| 95343 | Merced, CA | 9.4 mi | N/A | 0 |
| 95344 | Merced, CA | 9.4 mi | N/A | 0 |
| 95315 | Delhi, CA | 9.5 mi | B | 15 |
| 95340 | Merced, CA | 10.5 mi | B | 2 |
| 95341 | Merced, CA | 12.8 mi | B | 2 |
Nearby ZIP Code Reports
2026 Rankings for Your Area
Overall safety breakdown
Home Safety Score →Find the right water filter
Water Filter Matcher →Compare filters, tests & services
Compare My Options →Compare with another ZIP
Compare Tool →2026 Rankings