CITY REPORT CA HEALTH VIOLATIONS: 12

South Dos Palos, CA: 13 Violations - Home Safety 99/100

1 ZIP code · 1 water system · Updated

ZipCheckup grade for South Dos Palos: A.

The model grade is high, but the records on this page include findings worth reviewing.

Your top priority: match a filter's certification to the violations (12 health-based violations). NSF certified filters →

In the dataset behind this page, South Dos Palos, CA receives one of the two highest grades; read the compliance history system by system for details.

How South Dos Palos Compares

South Dos Palos99/100
California avg76/100
National avg73/100

Data: EPA SDWIS

1
ZIP Codes
1
Water Systems
1
ZIPs Linked to Systems with Violations
A · 99
Avg Safety Score
Zone 3
County Radon Potential (Low)
$600
Est. Remediation

Key Facts for South Dos Palos Residents

  • Your city's water systems recorded 13 violations since 2021.
  • Homes built before 1986: 94% - older plumbing may contain lead solder.
  • Estimated remediation: $600 per household.
  • Health risk index (ZipCheckup composite of CDC data): 12.06.

South Dos Palos's Water Providers

South Dos Palos, CA: one listed entry, 1 linked overall.

Overview

We track home safety data for 1 ZIP code in South Dos Palos, California (population ~422), covering 1 community water system serving approximately 7,452 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.

1 of 1 ZIP code with a reported violation count in the available EPA record (100%) have recorded EPA violations. 12 health-based violations appear in the available health breakdown.

Home Safety Score

Average Home Safety Score for South Dos Palos: A (99/100)

Model 4.0.0 uses four measured components across three equally weighted domains. If a required domain is unavailable, no score is published:

Factor What It Measures
Water Quality EPA violations and compliance history
PFAS MCL Screen UCMR 5 testing against the covered federal MCLs
Radon Risk EPA radon zone classification
Annual AQI EPA AirData county-year median with at least 90 observed days

Water Sources

South Dos Palos water systems draw from: Surface water.

Lead & Copper

  • Average of reported 90th-percentile lead results: reported as 0 mg/L (a reported 0 is not proof of no lead; check the source record for its reporting limit) (EPA action level: 0.015 mg/L)
  • 0 of 1 ZIP code with known status exceed the EPA lead action level

Radon Risk

1 of 1 ZIP records with known zones is in EPA Radon Zone 3.

The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.

Top Contaminants

Contaminant Category Violations ZIPs Affected
Total Trihalomethanes (TTHM) Disinfection Byproducts 22 1
Haloacetic Acids (HAA5) Disinfection Byproducts 2 1
Lead and Copper Rule Treatment Technique 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
93665 A 13 12 City of Dos Palos

All ZIP Codes in South Dos Palos

  • 93665 [A] - 13 violations ⚠

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

South Dos Palos Community Health Snapshot

9.8%
Asthma (US: 9.8%)
13%
Diabetes (US: 10.4%)
19%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). County health indicators are shown for context only and are not linked to this area's water records.

Compared to National Average

Asthma 9.8% ↓
Diabetes 13% ↑
Mental Health 19% ↑

Vertical line = national average. ■ Above national · ■ Below national

What's in South Dos Palos's Water?

Total Trihalomethanes (TTHM) 22 violations
Disinfection Byproducts · EPA regulatory level for the contaminant named above: 0.08 mg/L
Increased cancer risk with long-term exposure above the MCL
Haloacetic Acids (HAA5) 2 violations
Disinfection Byproducts · EPA regulatory level for the contaminant named above: 0.06 mg/L
Increased cancer risk with long-term exposure above the MCL
Lead and Copper Rule 2 violations
Treatment Technique
Developmental delays in children, kidney damage

Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.

South Dos Palos Infrastructure Age

1966
Median Build Year
94%
Built Before 1986
65%
Built Before 1970
Galvanized Steel or Copper
Likely Pipe Material

With 94% of homes built before 1986, lead solder in plumbing is a potential concern. Federal law banned lead solder in drinking-water plumbing in 1986, but many older homes retain original plumbing.

Source: U.S. Census Bureau American Community Survey (ACS).

Housing Age Profile

If you live in one of the pre-1986 homes in South Dos Palos, a certified lab test for lead is the direct way to learn what your tap delivers; the median build year of 1966 is only context.

1966
Median Year Built
94%
Pre-1986 (lead solder era; lead paint banned 1978)
65%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (65%) 1970–1986 (29%) Post-1986 (6%)

Over half of homes in South Dos Palos were built before 1986, when federal law began restricting lead solder in drinking-water plumbing. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.

Source: U.S. Census Bureau ACS B25034.

South Dos Palos: Lead Risk & Vulnerable Populations

94%
Homes Built Before 1986

Why children are most at risk: The CDC states that no safe blood lead level in children has been identified. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

If you have young children or are pregnant, consider testing your home's water - especially if your home was built before 1986.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

Deep Dive Reports

Detailed analysis for South Dos Palos, CA

Frequently Asked Questions

What does the Home Safety Score mean for South Dos Palos, CA?
South Dos Palos has an average Home Safety Score of 99/100 (Grade A) under ZipCheckup model 4.0.0, an area-level model that draws on EPA water compliance records, PFAS screening, EPA radon zones, and annual EPA air quality data; see the methodology page for how inputs and coverage are handled. 13 violations appear in EPA records for water systems mapped to these ZIP codes. Check individual ZIP code reports for component details.
How many violations are on record for water systems serving South Dos Palos?
EPA records list 13 EPA violations, including 12 health-based violations for South Dos Palos water systems. These water-system violations are shown for 1 mapped ZIP code.
How does South Dos Palos compare to California average?
South Dos Palos has an average Home Safety Score of 99/100, which is at or above the California state average of 76/100 for the same model series.
How many water systems serve South Dos Palos?
Our records map 1 water system to 1 ZIP code in South Dos Palos. The related population figure in our data is approximately 422 people; it is not a count of people served citywide.
How much does it cost to fix water issues in South Dos Palos?
Estimated remediation cost per household in South Dos Palos: $600; modeled range $300 to $1,500. Estimated costs may include filtration, pipe replacement, radon mitigation, or flood protection where applicable.
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How to cite this page

APA ZipCheckup. (2026). South Dos Palos, CA: 13 Violations - Home Safety 99/100. https://zipcheckup.com/cities/ca/south-dos-palos/
BibTeX 
@misc{zipcheckup-cities-ca-south-dos-palos,
  author = {{ZipCheckup}},
  title  = {{South Dos Palos, CA: 13 Violations - Home Safety 99/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/ca/south-dos-palos/}
}

Page version: October 2026.

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