waterbycounty
Federal water data

County water report

Liberty County Water Report

Drinking-water compliance, watershed health, monitoring records, and river conditions for Liberty County, Texas.

Water grade

D

Water score

43.9

State rank

#78

of 254

Health violations

26

EPA SDWIS, 5-year lookback

Watershed impaired

Not reported

EPA ATTAINS coverage varies by state

Monitoring sites

21

7,826 recent measurements

Live streamflow

53%

Trinity Rv at Liberty, TX

Water at a glance

Key Water Indicators for Liberty County

EPA SDWIS

Safety Grade

D

Score: 43.9 / 100

EPA SDWIS

Active Violations

26

5-year health-based lookback

EPA ATTAINS

Watershed Health

Not reported

Coverage varies by state

USGS NWIS

Streamflow Snapshot

53% of mean

Trinity Rv at Liberty, TX

EPA WQP

Monitoring Sites

21

7,826 recent readings

Source: EPA SDWIS · Safe Drinking Water Information System

Drinking Water Compliance

Compliance grade

D

Based on EPA SDWIS compliance history.

Water score

Higher scores indicate cleaner recent compliance records.

43.9/100

Health violations

26

Health-based violations

Violations per 100K served

25.4

Population-normalized SDWIS rate

Editorial analysis

Understanding Liberty County’s Water

Drinking Water Quality Overview

EPA SDWIS

Liberty County's drinking water received a D grade, scoring 43.9 out of 100. Over the past five years, EPA SDWIS records 26 health-based violations — a pattern that public water utilities are required to disclose and correct.

River & Streamflow Status

USGS NWIS

USGS NWIS gauge data (as of 2026-05-14T13:15:00.000-05:00) puts Trinity Rv at 5.8k cfs — well below its long-term average at 53% of mean — low-flow conditions worth noting for water-dependent ecosystems. Streamflow is a leading indicator of drought stress, sediment load, and dilution capacity: low flows concentrate pollutants and warm water temperatures, stressing aquatic life and, in surface-water-dependent systems, the source water quality for treatment plants.

Monitoring Network

EPA WQP

EPA's Water Quality Portal (WQP) aggregates monitoring data from federal, state, and tribal agencies. Liberty County has moderate coverage with 21 active monitoring sites with 7,826 recent measurements on record. Predominant monitoring categories include physical and nutrient. More monitoring sites generally indicate greater scientific attention to local water conditions — and provide the baseline data that regulators use to set future impairment listings.

Editorial advisory

What the data suggests for Liberty County

Water Verdict

Liberty County, Texas receives a below-average water quality assessment with a grade of D and a score of 43.9 out of 100. Residents should review their utility's Consumer Confidence Report and may want to consider additional water filtration for drinking. The county's primary USGS gauge drains roughly 17,468 square miles of upstream watershed, giving local source waters a regional footprint. At the most recent USGS reading, local streamflow was below its historical mean at 53.1% — worth watching in drier seasons.

Violation Context

EPA SDWIS records for Liberty County, Texas show 26 health-based violations, indicating multiple instances where federal contaminant limits or treatment requirements were not met. At 25.4 violations per 100,000 people served, this rate is high and signals significant water quality management issues. For independent context, 7,826 water-quality monitoring results have been recorded across the county in the EPA Water Quality Portal over the past five years.

Consumer Guidance

Liberty County's drinking-water compliance is below average with a Grade D, indicating repeated or unresolved violations in the recent record. Liberty County's drinking-water compliance score is 43.9 out of 100. The violation rate for Liberty County is 25.4 per 100,000 people served. Residents are encouraged to use an NSF 53 or NSF 58-certified filter for drinking and cooking water until the underlying violations are resolved. Running tap water for 30 seconds before use and avoiding older lead-pipe connections can also reduce exposure risk. The current Consumer Confidence Report from your utility will specify the contaminants of concern. With 21 active water-quality monitoring sites in Liberty County, data coverage is strong. A pipeline streamflow snapshot from the Trinity Rv gauge is also available on this page.

Regional Context

Liberty County has better water quality than the average county in Texas. Its water score is 13.5 points higher than the state average, indicating stronger water system performance relative to neighboring counties.

Advisory text summarizes county-level public records and is not a replacement for your utility's current Consumer Confidence Report or direct local notices.

Contaminants & Resources

Key issues flagged in Liberty County's water environment

Official EPA Resources for Liberty County

EPA How's My Waterway

Interactive watershed health data for Liberty County

EPA ECHO: Drinking Water Systems

Search water utilities and violation records for Liberty County

Consumer Confidence Reports (TX)

Annual water quality reports from utilities in Texas

Past 5 years

Water Quality Monitoring

Monitoring Sites

21

Active in the past 5 years

Measurements Recorded

7.8K

7,826 total readings

Most Measured

  • Physical
  • Nutrient
  • Inorganics, Major, Non-metals

Categories measured most frequently

Data from the EPA Water Quality Portal (WQP), aggregating monitoring records from federal, state, and tribal sources. Each measurement represents a single sample analyzed for a specific characteristic (e.g., E. coli, pH, dissolved oxygen, nitrogen).

Live USGS Streamgage

River & Stream Conditions

Current Discharge

5,810cfs

May 14, 6:15 PM UTC

vs Long-Term Average

53%

Well below typical

Primary Streamgage

Trinity Rv at Liberty, TX

USGS site
08067000
Drainage area
17,468 sq mi
Long-term mean
10.9K cfs

One representative streamgage (the one with the largest drainage area in the county). Many counties have multiple gauges; this view summarizes the primary one. The long-term mean is the full-record annual average; the percent-of-typical value compares the latest reading against that average.

Free tool

Estimate Your Water Costs

Water Cost Estimate

3

3 people  ·  ~225 gal/day

Annual Total

$558

Monthly

$47

Water Bill

$558/yr

Filter Cost

$0/yr

Safety Grade for Liberty County:D — Poor

Elevated violations or significant watershed impairment.

Estimates use the national average residential water rate ($0.0068/gal, EPA/AWWA 2023) and EPA WaterSense per-person consumption baseline (75 gal/person/day). Actual bills vary by utility, usage tier, and local infrastructure fees. For informational purposes only.

Try the full calculator →

Improve your water quality at home

Berkey filters remove 99.9%+ of contaminants from tap water.

Shop Berkey →

Sponsored

Test your tap water

Tap Score provides professional mail-in water testing.

Get Tested →

Frequently Asked Questions

What is the water quality in Liberty County, Texas?
Liberty County, Texas has a drinking-water quality grade of D with a score of 43.9/100, based on EPA SDWIS compliance data. The county has 26 health-based drinking water violations over the past 5 years. Watershed health, monitoring records, and streamflow snapshots are reported separately on this page.
Are there any water violations in Liberty County?
Liberty County has 26 health-based drinking water violations recorded by the EPA over the past 5 years. Health-based violations indicate instances where contaminant levels exceeded EPA Maximum Contaminant Levels (MCLs). Violations may have been resolved — check with your local water utility for current status.
How much water-quality monitoring happens in Liberty County?
EPA's Water Quality Portal records 7,826 measurements from 21 monitoring sites in Liberty County over the past five years. The most frequently measured characteristic groups are Physical, Nutrient, Inorganics, Major, Non-metals. Each measurement is a single sample analyzed for one characteristic (E. coli, pH, dissolved oxygen, etc.). High monitoring density means more scientific evidence behind any reported signal — it does not by itself indicate water quality.
What's happening with rivers in Liberty County right now?
Liberty County's primary USGS streamgage on the Trinity Rv has a pipeline snapshot of 5,810 cubic feet per second — 53% of the long-term mean of 10,941.33 cfs. This is well below typical — often a signal of drought stress on source water. For the latest gauge feed, visit waterdata.usgs.gov.
How does Liberty County water compare to the Texas average?
Liberty County's SDWIS water quality score of 43.9/100 is higher than the Texas state average of 30.4. The average water quality grade across Texas is F, based on data from 254 counties with available SDWIS data.
Is tap water safe to drink in Liberty County?
Based on EPA SDWIS data, Liberty County has a water quality grade of D (43.9/100). This indicates below-average compliance with significant violations. Residents may want to consider home water filtration or independent testing. The grade speaks to the public water system, not the watershed — for watershed-level concerns, see the Watershed Health zone. For the most up-to-date information, contact your local water utility or review your Consumer Confidence Report (CCR).
Why does Liberty County have so many water violations?
Liberty County has 26 health-based drinking water violations on record from the EPA SDWIS database. A higher violation count can result from aging infrastructure, underfunded water utilities, agricultural runoff contamination, or industrial pollution. Counties with more water systems may also see more violations simply due to scale. Residents concerned about water quality should consider independent water testing and home filtration systems.
How does Liberty County rank for water quality in Texas?
Liberty County ranks #78 out of 254 counties in Texas by SDWIS water quality score (1 = best). With a score of 43.9/100, it falls in the top third of counties statewide. The ranking reflects EPA SDWIS compliance only — not watershed impairment, monitoring density, or streamflow, which are tracked separately on this page.

Counties with Similar Water Quality

Bastrop County

Texas

D

44.0

Water score

Cooke County

Texas

D

43.5

Water score

Taylor County

Texas

D

44.4

Water score

Data Sources

Drinking-water compliance data from the EPA Safe Drinking Water Information System (SDWIS) via the ECHO enforcement database. Scores reflect compliance history and health-based violation counts.

Water-quality monitoring counts from the EPA Water Quality Portal (WQP), federated USGS, EPA, and state agency sampling records over a rolling 5-year window.

Live streamflow from the USGS National Water Information System (NWIS), continuous discharge measurements from the largest-drainage gauge in each county, compared against the full-record long-term annual mean.

Disclaimer: This data is informational only. It is not health, legal, or professional advice. For concerns about your specific water supply, contact your local water utility.

By Evan Brooks, Data EditorUpdated Reviewed by Evan Brooks, Data Editor

Explore more data for Liberty County

Property TaxCost of LivingCrime RateIncomeHealthSchoolsDisaster RiskWeatherCounty Score