Friendswood, TX Water Safety: 71/100 (2026)
2 ZIP codes · 6 water systems · Updated 2026-06-03
Although water quality varies across any metro, Friendswood's systems collectively post above-average compliance scores for TX — and documented violations are few.
How Friendswood Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Friendswood Water
- Average lead level: 0.0099 mg/L.
- Estimated remediation: $2,400 per household.
- CDC health risk index: 12.31 — above typical levels.
Who Supplies Your Water in Friendswood
Federal drinking water records identify 6 systems in Friendswood, TX. The leading 3 providers serve the largest share of residential connections, each operating as a separate entity with its own rate authority, infrastructure management, and EPA compliance obligations — so service conditions are not uniform city-wide.
Overview
We track water quality and home safety data for 2 ZIP codes in Friendswood, Texas (population ~54,082), covering 6 community water systems serving approximately 3,281,812 people region-wide.
No EPA violations recorded across any ZIP codes in Friendswood — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Friendswood: B (71/100)
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
Friendswood water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0099 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): 2 ZIP codes
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 77546 | C | City of Friendswood | 43,190 |
| 77549 | B | City of Friendswood | 43,190 |
All ZIP Codes in Friendswood
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.
Health Outcomes in Friendswood
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
Cost Context: What Remediation Means for Friendswood Homeowners
Placing remediation in the context of Friendswood's property market, the equity share is low — most homeowners here are weighing a financial commitment that fits comfortably within routine property planning, far from the threshold where remediation becomes a material equity decision rather than a standard upkeep consideration.
Remediation costs in Friendswood are relatively low compared to home values. The $1,650–$3,650 estimated range is a small fraction of median property value. Home values are 55% above the Texas average.
Lead Exposure Risk for Children in Friendswood
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.
Lead risk in Friendswood appears low overall, but individual homes may differ. Testing is the only way to confirm your water's lead content.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Flood & Climate Risk in Friendswood
NFIP data for Friendswood documents 6109 flood insurance claims across the program's multi-decade tracking period, with 100% of ZIP codes mapped into FEMA flood zones. That level of exposure creates compounding risk during major flood events: treatment systems can be overwhelmed, wells can be contaminated, and distribution infrastructure can suffer backflow — all pathways by which flood events degrade local water quality beyond the physical damage.
Friendswood has a significant flood history with 6,109 FEMA flood insurance claims on record, averaging $45,475 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>$2,400</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 Friendswood, TX