County water report

Campbell County Water Report

Drinking-water compliance, watershed health, monitoring records, and river conditions for Campbell County, Wyoming.

Water grade

Water score

52.9

State rank

of 23

Health violations

EPA SDWIS, 5-year lookback

Watershed impaired

Not reported

EPA ATTAINS coverage varies by state

Monitoring sites

2,867 recent measurements

Live streamflow

13%

LITTLE POWDER RIVER AB DRY CREEK, NEAR WESTON, WY

Water at a glance

Key Water Indicators for Campbell County

EPA SDWIS

Safety Grade

Score: 52.9 / 100

EPA SDWIS

Active Violations

5-year health-based lookback

EPA ATTAINS

Watershed Health

Not reported

Coverage varies by state

USGS NWIS

Streamflow Snapshot

13% of mean

LITTLE POWDER RIVER AB DRY CREEK, NEAR WESTON, WY

EPA WQP

Monitoring Sites

2,867 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.

52.9/100

Health violations

Health-based violations

Violations per 100K served

12.5

Population-normalized SDWIS rate

Data center water stress

Campbell County has 1 facility in the DCWSI dataset.

ByCounty's DCWSI ranks this county #1478 nationally by combining its water score with mapped data center density.

DCWSI

31.7

0-100 index

Facility count

0.0 density percentile

Discharge estimate

Not reported

EPA CWA fields where available

Water vs median

+2.9

Compared with US county median

Mapped facilities

OpenStreetMap data center 1414729942
Facility details limited
OSM

See the Campbell County data-center report Review methodology

Data Center Water Budget Calculator

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

Facility size: 100 MW

1 MW1,000 MW

Cooling type

Utilization: 70%

40%100%

799K gallons/dayHigh Impact

Your facility would use 763.0% of this county's industrial water baseline. Verify water rights and long-term drought projections before committing.

763.0% of county industrial baseline

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 Campbell County’s Water

Drinking Water Quality Overview

EPA SDWIS

Campbell County's drinking water earned a C grade, scoring 52.9 out of 100. Over the past five years, EPA SDWIS records 6 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 2021-10-27T00:45:00.000-06:00) puts LITTLE POWDER RIVER AB DRY CREEK, at 3.0 cfs — well below its long-term average at 13% 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. Campbell County has limited coverage with 7 active monitoring sites with 2,867 recent measurements on record. Predominant monitoring categories include physical and organics, pesticide. 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 Campbell County

Water Verdict

Campbell County receives a below-average water quality assessment with a grade of C and a score of 52.9 out of 100. Residents should review their utility's Consumer Confidence Report and may want to consider additional water filtration for drinking.

Violation Context

Campbell County has recorded 6 health-based violations, indicating multiple instances where federal contaminant limits or treatment requirements were not met. At 12.5 violations per 100,000 people served, this rate is high and signals significant water quality management issues.

Consumer Guidance

Tap water in Campbell County meets baseline standards but the compliance record shows room for improvement, with a Grade C rating. Campbell County's drinking-water compliance score is 52.9 out of 100. The violation rate for Campbell County is 12.5 per 100,000 people served. Residents who are immunocompromised, pregnant, or have young children may benefit from using an NSF 53-certified filter. Contacting your local utility for the current Consumer Confidence Report will confirm which specific violations were recorded and whether they have been resolved. There are 7 active water-quality monitoring sites in Campbell County. A pipeline streamflow snapshot from the LITTLE POWDER RIVER AB DRY CREEK, gauge is also available on this page.

Regional Context

Campbell County has better water quality than the average county in Wyoming. Its water score is 16.3 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 Campbell County's water environment

Official EPA Resources for Campbell County

EPA How's My Waterway

Interactive watershed health data for Campbell County

EPA ECHO: Drinking Water Systems

Search water utilities and violation records for Campbell County

Consumer Confidence Reports (WY)

Annual water quality reports from utilities in Wyoming

Past 5 years

Water Quality Monitoring

Monitoring Sites

Active in the past 5 years

Measurements Recorded

2.9K

2,867 total readings

Most Measured

Physical
Organics, Pesticide
Inorganics, Minor, 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

2.95cfs

Oct 27, 6:45 AM UTC

vs Long-Term Average

13%

Well below typical

Primary Streamgage

LITTLE POWDER RIVER AB DRY CREEK, NEAR WESTON, WY

USGS site: 06324970
Drainage area: 1,237 sq mi
Long-term mean: 23.3 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 Campbell 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.

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Frequently Asked Questions

What is the water quality in Campbell County, Wyoming?

Campbell County, Wyoming has a drinking-water quality grade of C with a score of 52.9/100, based on EPA SDWIS compliance data. The county has 6 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 Campbell County?

Campbell County has 6 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 Campbell County?

EPA's Water Quality Portal records 2,867 measurements from 7 monitoring sites in Campbell County over the past five years. The most frequently measured characteristic groups are Physical, Organics, Pesticide, Inorganics, Minor, 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 Campbell County right now?

Campbell County's primary USGS streamgage on the LITTLE POWDER RIVER AB DRY CREEK, has a pipeline snapshot of 2.95 cubic feet per second — 13% of the long-term mean of 23.29 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 Campbell County water compare to the Wyoming average?

Campbell County's SDWIS water quality score of 52.9/100 is higher than the Wyoming state average of 36.6. The average water quality grade across Wyoming is F, based on data from 23 counties with available SDWIS data.

Is tap water safe to drink in Campbell County?

Based on EPA SDWIS data, Campbell County has a water quality grade of C (52.9/100). This indicates moderate compliance. Some violations have been recorded but overall standards are maintained. 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 Campbell County have so many water violations?

Campbell County has 6 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 Campbell County rank for water quality in Wyoming?

Campbell County ranks #5 out of 23 counties in Wyoming by SDWIS water quality score (1 = best). With a score of 52.9/100, 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

Converse County

Wyoming

47.9

Water score

Sheridan County

Wyoming

58.4

Water score

Park County

Wyoming

59.0

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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