County water report

Armstrong County Water Report

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

Water grade

Water score

29.7

State rank

#118

of 254

Health violations

EPA SDWIS, 5-year lookback

Watershed impaired

Not reported

EPA ATTAINS coverage varies by state

Monitoring sites

164 recent measurements

Live streamflow

Pr Dog Twn Fk Red Rv nr Wayside, TX

Water at a glance

Key Water Indicators for Armstrong County

EPA SDWIS

Safety Grade

Score: 29.7 / 100

EPA SDWIS

Active Violations

5-year health-based lookback

EPA ATTAINS

Watershed Health

Not reported

Coverage varies by state

USGS NWIS

Streamflow Snapshot

1% of mean

Pr Dog Twn Fk Red Rv nr Wayside, TX

EPA WQP

Monitoring Sites

164 recent readings

Source: EPA SDWIS · Safe Drinking Water Information System

Drinking Water Compliance

Compliance grade

Based on EPA SDWIS compliance history.

Water score

Higher scores indicate cleaner recent compliance records.

29.7/100

Health violations

Health-based violations

Violations per 100K served

69.0

Population-normalized SDWIS rate

Data center water stress

Armstrong County has 1 facility in the DCWSI dataset.

ByCounty's DCWSI ranks this county #2164 nationally by combining its water score with mapped data center density.

DCWSI

17.8

0-100 index

Facility count

0.0 density percentile

Discharge estimate

Not reported

EPA CWA fields where available

Water vs median

-20.3

Compared with US county median

Mapped facilities

GOODNIGHT POWER PLANT PROJECT
CLAUDE
EPA ECHO

See the Armstrong County data-center report Review methodology

Data Center Water Budget Calculator

Estimate daily water use for a hypothetical facility in Armstrong County.

Facility size: 100 MW

1 MW1,000 MW

Cooling type

Utilization: 70%

40%100%

799K gallons/dayData Unavailable

County-level industrial water use data is unavailable for this county. Contact the county water authority directly for industrial withdrawal capacity.

Based on USGS 2020 water-use data and EPA-standard cooling intensity constants. Not a substitute for site-specific water rights analysis.

Editorial analysis

Understanding Armstrong County’s Water

Drinking Water Quality Overview

EPA SDWIS

Armstrong County's water systems carry a failing grade, scoring 29.7 out of 100. Over the past five years, EPA SDWIS records 1 health-based violation — a single incident worth monitoring.

River & Streamflow Status

USGS NWIS

USGS NWIS gauge data (as of 2026-05-14T14:00:00.000-05:00) puts Pr Dog Twn Fk Red Rv at 0.3 cfs — well below its long-term average at 1% 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. Armstrong County has limited coverage with 1 active monitoring site with 164 recent measurements on record. Predominant monitoring categories include physical and inorganics, major, non-metals. 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 Armstrong County

Water Verdict

Armstrong County receives a poor water quality assessment with a grade of F and a score of 29.7 out of 100. The water supply has documented quality issues. Residents are strongly encouraged to use filtered or bottled water for drinking and to stay informed about utility improvement plans.

Violation Context

Armstrong County has recorded 1 health-based violation, meaning the water system experienced at least one exceedance of federal contaminant limits or treatment requirements. At 69.0 violations per 100,000 people served, this rate is high and signals significant water quality management issues.

Consumer Guidance

Drinking-water compliance in Armstrong County is rated Grade F, reflecting significant health-based violations in the recent reporting period. Armstrong County's drinking-water compliance score is 29.7 out of 100. The violation rate for Armstrong County is 69.0 per 100,000 people served. An NSF 53 or NSF 58-certified filter is recommended for drinking and cooking water. Check the Consumer Confidence Report from your utility to identify the specific contaminants and required corrective actions — utilities are legally required to notify customers of violations. There is 1 active water-quality monitoring site in Armstrong County. A pipeline streamflow snapshot from the Pr Dog Twn Fk Red Rv gauge is also available on this page.

Regional Context

Armstrong County has water quality close to the average county in Texas. Its water score is within 0.7 points of the state average, meaning its overall water system performance is broadly representative of Texas as a whole.

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 Armstrong County's water environment

Official EPA Resources for Armstrong County

EPA How's My Waterway

Interactive watershed health data for Armstrong County

EPA ECHO: Drinking Water Systems

Search water utilities and violation records for Armstrong County

Consumer Confidence Reports (TX)

Annual water quality reports from utilities in Texas

Past 5 years

Water Quality Monitoring

Monitoring Sites

Active in the past 5 years

Measurements Recorded

164

164 total readings

Most Measured

Physical
Inorganics, Major, Non-metals
Nutrient

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

0.31cfs

May 14, 7:00 PM UTC

vs Long-Term Average

Well below typical

Primary Streamgage

Pr Dog Twn Fk Red Rv nr Wayside, TX

USGS site: 07297910
Drainage area: 3,754 sq mi
Long-term mean: 26.8 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

Household size

3 people · ~225 gal/day

Filter type

Annual Total

$558

Monthly

$47

Water Bill

$558/yr

Filter Cost

$0/yr

Safety Grade for Armstrong County:F — Failing

High violation count or severe watershed conditions.

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.

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Frequently Asked Questions

What is the water quality in Armstrong County, Texas?

Armstrong County, Texas has a drinking-water quality grade of F with a score of 29.7/100, based on EPA SDWIS compliance data. The county has 1 health-based drinking water violation over the past 5 years. Watershed health, monitoring records, and streamflow snapshots are reported separately on this page.

Are there any water violations in Armstrong County?

Armstrong County has 1 health-based drinking water violation 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 Armstrong County?

EPA's Water Quality Portal records 164 measurements from 1 monitoring sites in Armstrong County over the past five years. The most frequently measured characteristic groups are Physical, Inorganics, Major, Non-metals, Nutrient. 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 Armstrong County right now?

Armstrong County's primary USGS streamgage on the Pr Dog Twn Fk Red Rv has a pipeline snapshot of 0.31 cubic feet per second — 1% of the long-term mean of 26.75 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 Armstrong County water compare to the Texas average?

Armstrong County's SDWIS water quality score of 29.7/100 is lower 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 Armstrong County?

Based on EPA SDWIS data, Armstrong County has a water quality grade of F (29.7/100). 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).

Does Armstrong County have clean drinking water?

Armstrong County has 1 health-based drinking water violation according to EPA records. With a water quality score of 29.7/100 and grade F, the county's drinking water has had some compliance issues but continues to be monitored. Note: drinking-water compliance speaks to the public water system, not necessarily to the watershed itself — check the Watershed Health zone for ATTAINS §303(d) data.

How does Armstrong County rank for water quality in Texas?

Armstrong County ranks #118 out of 254 counties in Texas by SDWIS water quality score (1 = best). With a score of 29.7/100, it falls in the middle 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

Willacy County

Texas

29.8

Water score

Menard County

Texas

29.9

Water score

Uvalde County

Texas

30.5

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 May 14, 2026Reviewed by Evan Brooks, Data Editor

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