Carrollton, TX Water Safety: 90/100 (2026)
4 ZIP codes · 5 water systems · Updated 2026-06-03
In current tracking cycles, Carrollton records above-average water quality outcomes for TX; compliance history over recent years shows few departures from federal standards and no systemic failures across its water systems.
How Carrollton Compares
Data: EPA SDWIS Last verified: 2026-06-03
Carrollton Water: The Quick Version
- Average lead level: 0.0015 mg/L.
- Homes built before 1986: 42% — older plumbing may contain lead solder.
- Estimated remediation: $1,575 per household.
- CDC health risk index: 11.2.
Water Systems Serving Carrollton
5 water systems are tracked federally in Carrollton, TX. The top 3 providers collectively serve most residential addresses, but because they operate independently, infrastructure maintenance standards and compliance histories differ from one service zone to another.
Overview
We track water quality and home safety data for 4 ZIP codes in Carrollton, Texas (population ~134,385), covering 5 community water systems serving approximately 1,942,845 people region-wide.
No EPA violations recorded across any ZIP codes in Carrollton — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Carrollton: A (90/100)
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
Carrollton water systems draw from: Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0015 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)
- Zone 1 (High): 0 ZIP codes
- Zone 2 (Moderate): 0 ZIP codes
- Zone 3 (Low): 4 ZIP codes
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 75006 | A | City of Carrollton | 136,170 |
| 75007 | A | City of Carrollton | 136,170 |
| 75010 | A | City of Carrollton | 136,170 |
| 75011 | A | City of Carrollton | 136,170 |
All ZIP Codes in Carrollton
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.
CDC Health Data for Carrollton
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
How Old Is Carrollton's Housing Stock?
With 42% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
Tap water lead levels are shaped by two factors: what the utility delivers, and what the household plumbing adds to it. Older homes contribute disproportionately to that second variable because lead solder was standard in copper plumbing before 1986, and lead pipes were common before 1970. In Carrollton, where the median build year is 1993, a substantial share of the housing stock falls into these older categories. The bar chart above breaks out the pre-1970, 1970-to-1986, and post-1986 segments — the key ages for understanding where plumbing-era risk concentrates across the city.
Most homes in Carrollton 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.
Carrollton: Remediation Cost in Perspective
Setting Carrollton remediation figures against its property market, the resulting ratio sits comfortably in the low tier — a classification that reflects the kind of household financial position where most homeowners can identify documented issues, schedule the work, and absorb the cost without it registering as a significant budget disruption.
Remediation costs in Carrollton are relatively low compared to home values. The $1,025–$2,400 estimated range is a small fraction of median property value. Home values are 58% above the Texas average.
Protecting Children from Lead in Carrollton
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 42% of the Carrollton inventory comes from before the federal ban on lead-bearing solder — and if utility samples sit at or near 0.015 mg/L — the gap between citywide averages and one specific faucet becomes a practical concern rather than a theoretical one. That is why one-home reads exist as a separate measurement. A certified filter through retailer networks addresses confirmed exposure where it appears in a household.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Climate-Related Water Risk for Carrollton
FEMA data shows 100% of Carrollton's ZIP codes mapped into designated flood zones, paired with an NFIP record of 137 claims. That footprint places local flood exposure in the range where it warrants attention without rising to high-severity planning territory.
Carrollton has a moderate flood history with 137 FEMA claims averaging $4,582 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>$1,575</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 Carrollton, TX