Looking at federal monitoring data for Terrell, TX: the city clears benchmarks set under the Safe Drinking Water Act with room to spare - recorded exceedances are rare, and the systems serving local households have not triggered any pattern of repeat deficiencies in recent cycles.

Data: EPA SDWIS

Overview

We track home safety data for 2 ZIP codes in Terrell, Texas (population ~33,055), covering 9 community water systems serving approximately 83,727 people region-wide. The EPA snapshots used for this build directly map water systems to 2 of 2 ZIP codes.

2 of 2 ZIP codes with a reported violation count in the available EPA record (100%) have recorded EPA violations. 4 health-based violations appear in the available health breakdown.

Home Safety Score

Average Home Safety Score for Terrell: B (70/100)

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

Terrell water systems draw from: Groundwater, Surface water.

Lead & Copper

• Average lead level (90th percentile): 0.0028 mg/L (EPA action level: 0.015 mg/L)
• 0 of 2 ZIP codes with known status 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): 2 ZIP codes

Top Contaminants

Areas with Most Violations

All ZIP Codes in Terrell

• 75160 [C] - 129 violations ⚠
• 75161 [B] - 22 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

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

Housing Age Profile

Reading the housing data for Terrell, with a median build year of 1990, reveals a community where neither old nor new construction dominates. That balanced profile means lead-solder-era plumbing is present throughout a meaningful portion of the residential inventory - with risk concentrated in properties built before 1986 and most acute in those that predate 1970.

1990

Median Year Built

40%

Pre-1986 (Lead Paint Risk)

10%

Pre-1970 (Lead Pipes Risk)

Pre-1970 (10%) 1970–1986 (30%) Post-1986 (60%)

Most homes in Terrell 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.

Cost Context: What Remediation Means for Terrell Homeowners

When remediation costs are measured against Terrell home values, the resulting ratio is in the low tier - addressing documented water and safety issues here claims only a minor fraction of typical equity, and most homeowners are in a position where the financial commitment is straightforward rather than a material burden on their household budget.

Median Home Value

$223,100

Est. Remediation

$2,100

Remediation as % of home value 0.9%

Remediation costs in Terrell are relatively low compared to home values. The $1,400–$2,950 estimated range is a small fraction of median property value. Home values are 2% below the Texas average.

Lead Exposure Risk for Children in Terrell

40%

Homes Built Before 1986

0.0028

mg/L Avg Lead (Limit: 0.015)

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.

Locally, 40% of Terrell homes carry interior plumbing from the era when lead solder was still permitted in new builds, and citywide monitoring approaches or crosses the EPA action benchmark. Households can find a draw-test kit and certified filtration through verified retailers.

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

Historical NFIP Claim Context in Terrell

24

Total FEMA Flood Claims

$9,728

Avg Reported Sum With Payment Data

50%

A/V Share of Claim-Record ZIPs

Historical NFIP data for Terrell contains 24 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $9,728. Among ZIP codes with claim records, 50% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.

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. The <strong>$2,100</strong> remediation estimate shown here excludes flood insurance and is not derived from NFIP claim count.

Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.

Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.