Dayton, TX: 7 Violations — 70/100 (2026)
1 ZIP code · 6 water systems · Updated 2026-06-03
How does Dayton tap water hold up under EPA scrutiny? Above average for TX — documented violations are uncommon and the safety grade reflects a clean overall record.
How Dayton Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for Dayton Residents
- Your city's water systems recorded 7 violations in the past 5 years.
- Average lead level: 0.001 mg/L.
- Homes built before 1986: 28% — older plumbing may contain lead solder.
- Estimated remediation: $1,800 per household.
- CDC health risk index: 13.85 — above typical levels.
Dayton's Water Providers
Across Dayton, TX, residential water comes from 3 primary utilities rather than a single consolidated provider. Each system operates independently — managing its own distribution infrastructure, rate schedules, and EPA compliance filings. Federal records track 6 water systems in the area, with these top providers accounting for the majority of residential connections.
Overview
We track water quality and home safety data for 1 ZIP code in Dayton, Texas, covering 6 community water systems serving approximately 38,037 people.
1 of 1 ZIP code (100%) have recorded EPA violations. All violations are monitoring/reporting type.
Home Safety Score
Average Home Safety Score for Dayton: B (70/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
Dayton water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0010 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 3 (Low Risk)
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Stage 1 DBP Rule | Treatment Technique | 4 | 1 |
| Surface Water Treatment Rule | Treatment Technique | 4 | 1 |
| Revised Total Coliform Rule | Microbiological | 4 | 1 |
| Consumer Confidence Report Rule | Reporting | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 77535 | B | 7 | 0 | City of Dayton |
All ZIP Codes in Dayton
- 77535 [B] — 7 violations
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Updated daily.
Dayton Community Health Snapshot
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
What's in Dayton's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Dayton Infrastructure Age
Housing age data helps assess potential lead pipe and infrastructure risks. Newer housing stock generally means lower plumbing-related contamination risk.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
Housing age matters for water quality because lead solder was widely used in plumbing until the 1986 federal ban. Dayton's median build year of 1993 suggests a majority of homes were constructed under the newer standard — a meaningful factor when assessing household-level lead risk from tap water.
Most homes in Dayton were built after 1986, reducing the risk of lead contamination from plumbing. Older homes should still be tested.
Source: U.S. Census Bureau ACS B25034.
How Remediation Costs Compare in Dayton
While no remediation project is entirely without cost, the relationship between estimated remediation and property values in Dayton is notably favorable — the equity share is small enough that the household financial perspective is one of proportionality rather than pressure, and most homeowners can treat it as routine planning rather than a significant financial event.
Remediation costs in Dayton are relatively low compared to home values. The $1,200–$2,500 estimated range is a small fraction of median property value. Home values are 5% below the Texas average.
Dayton: Lead Risk & Vulnerable Populations
Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
If aggregate samples sit below the EPA action level and just 28% of Dayton's inventory comes from the pre-rule era, systemic lead is not a dominant local concern. The aggregate still cannot tell a homeowner what is actually flowing from a specific faucet on a specific morning, which is why an in-home draw exists as a separate measurement at the household tier.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Dayton: Flood History & Water Damage Risk
The National Flood Insurance Program builds its dataset one claim at a time — each filed claim represents a property where flood damage was severe enough to trigger an insurance payout. For Dayton, that dataset has accumulated 1075 such events across the program's multi-decade history. 100% of ZIP codes here carry official FEMA flood zone designations, reflecting federal assessments of where flood risk is concentrated. Together, those data points describe a community with a documented, substantial flood exposure — the kind that shapes not just property risk but also the periodic reliability of water supply infrastructure. When flood events reach that scale, treatment systems face peak-load contamination stress, private wells become vulnerable to surface water intrusion, and the distribution network can experience backflow conditions that allow untreated water to re-enter the system.
Dayton has a significant flood history with 1,075 FEMA flood insurance claims on record, averaging $31,905 per claim. With 100% of ZIP codes in FEMA-designated flood zones, flood risk is a major concern for homeowners and water quality.
How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. Flood damage can add significantly to the estimated <strong>$1,800</strong> remediation cost per household.
Residents in flood-prone areas should consider flood insurance even outside FEMA zones — over 25% of flood claims come from low-to-moderate risk areas. After any flood event, test your water before drinking.
Source: FEMA National Flood Insurance Program (NFIP) claims data, FEMA flood zone designations.
Deep Dive Reports
Detailed analysis for Dayton, TX