Rio Medina, TX Water Safety: 73/100 (2026)
1 ZIP code · 2 water systems · Updated 2026-06-03
Within Rio Medina, safety indicators for tap water remain above the TX median — documented violations are infrequent and the city's compliance record sits in the upper tier.
How Rio Medina Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for Rio Medina Residents
- Homes built before 1986: 10% — older plumbing may contain lead solder.
- Estimated remediation: $1,200 per household.
- CDC health risk index: 13.12 — above typical levels.
Rio Medina's Water Providers
In Rio Medina, TX, residential water supply is distributed across multiple utilities rather than concentrated in one. The 2 leading providers out of 2 tracked systems each control their own infrastructure, file separate EPA compliance reports, and set independent rate schedules.
Overview
We track water quality and home safety data for 1 ZIP code in Rio Medina, Texas (population ~387), covering 2 community water systems serving approximately 2,125,337 people region-wide.
No EPA violations recorded across any ZIP codes in Rio Medina — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Rio Medina: B (73/100)
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
Rio Medina water systems draw from: Surface water.
Lead & Copper
- Lead data: not yet available for Rio Medina
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 3 (Low Risk)
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 78066 | B | Yancey Water Supply Corporation | 12,186 |
All ZIP Codes in Rio Medina
- 78066 [B]
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.
Rio Medina 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
Rio Medina 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
For most of Rio Medina's housing stock, construction occurred after 1986 — when lead solder in plumbing was federally prohibited. The median build year of 2018 broadly reflects that newer profile.
Most homes in Rio Medina 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 Rio Medina
Remediation costs in Rio Medina are small relative to typical property values — the cost-to-value ratio here is favorable.
Remediation costs in Rio Medina are relatively low compared to home values. The $800–$1,800 estimated range is a small fraction of median property value. Home values are 2% above the Texas average.
Rio Medina: 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.
Even with citywide samples reading clean and just 10% of Rio Medina homes dating to the pre-rule era, individual-faucet conditions remain a separate question that aggregate utility data cannot resolve for one specific address. That gap is structural, not a function of severity.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Rio Medina: Flood History & Water Damage Risk
Flood activity in Rio Medina is neither negligible nor at the level of the highest-exposure areas in the NFIP dataset. The 5-claim record and 100% flood zone coverage suggest a community that has experienced recurrent events but has not faced the kind of sustained, severe exposure where water-supply contamination becomes a primary public health concern. It sits in a middle range where flood history merits inclusion in any complete local water quality picture.
Rio Medina has a moderate flood history with 5 FEMA claims averaging $6,276 per payout. 100% of ZIP codes fall within FEMA flood zones. Flood events can contaminate drinking water and overwhelm treatment systems.
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>$1,200</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 Rio Medina, TX