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Federal water data

County water report

Cherry County Water Report

Drinking-water compliance, watershed health, monitoring records, and river conditions for Cherry County, Nebraska.

Water grade

F

Water score

17.8

State rank

#76

of 90

Health violations

5

EPA SDWIS, 5-year lookback

Watershed impaired

73.7%

19 water bodies assessed

Monitoring sites

18

7,299 recent measurements

Live streamflow

78%

Niobrara River near Sparks, Nebr.

Water at a glance

Key Water Indicators for Cherry County

EPA SDWIS

Safety Grade

F

Score: 17.8 / 100

EPA SDWIS

Active Violations

5

5-year health-based lookback

EPA ATTAINS

Watershed Health

74% impaired

19 bodies assessed

USGS NWIS

Streamflow Snapshot

78% of mean

Niobrara River near Sparks, Nebr.

EPA WQP

Monitoring Sites

18

7,299 recent readings

Source: EPA SDWIS · Safe Drinking Water Information System

Drinking Water Compliance

Compliance grade

F

Based on EPA SDWIS compliance history.

Water score

Higher scores indicate cleaner recent compliance records.

17.8/100

Health violations

5

Health-based violations

Violations per 100K served

155.7

Population-normalized SDWIS rate

Editorial analysis

Understanding Cherry County’s Water

Drinking Water Quality Overview

EPA SDWIS

Cherry County's water systems carry a failing grade, scoring 17.8 out of 100. Over the past five years, EPA SDWIS records 5 health-based violations — a pattern that public water utilities are required to disclose and correct.

Watershed Conditions

EPA ATTAINS

Under the Clean Water Act §303(d), EPA ATTAINS tracks whether waterways meet quality standards for drinking, recreation, and aquatic life (reporting cycle: 2022). A large majority — 73.7% — of assessed waterways are impaired (14 of 19 water bodies) across Cherry County's watersheds. The leading impairment causes are escherichia coli (e. coli) and temperature. Impairment does not mean tap water is unsafe — it measures ambient waterway conditions upstream of treatment, not finished drinking water.

River & Streamflow Status

USGS NWIS

USGS NWIS gauge data (as of 2026-05-14T13:45:00.000-05:00) puts Niobrara River at 621.0 cfs — running somewhat below its historical average at 78% of mean. 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. Cherry County has moderate coverage with 18 active monitoring sites with 7,299 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 Cherry County

Water Verdict

Cherry County, Nebraska receives a poor water quality assessment with a grade of F and a score of 17.8 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. Separately, EPA ATTAINS assessments cover 19 water bodies in the county's watershed, with 73.7% listed as impaired under the Clean Water Act — a source-water measure that is tracked independently of tap-water compliance. At the most recent USGS reading, local streamflow was below its historical mean at 78.1% — worth watching in drier seasons.

Violation Context

EPA SDWIS records for Cherry County, Nebraska show 5 health-based violations, indicating multiple instances where federal contaminant limits or treatment requirements were not met. At 155.7 violations per 100,000 people served, this rate is high and signals significant water quality management issues. For independent context, 7,299 water-quality monitoring results have been recorded across the county in the EPA Water Quality Portal over the past five years.

Consumer Guidance

Drinking-water compliance in Cherry County is rated Grade F, reflecting significant health-based violations in the recent reporting period. Cherry County's drinking-water compliance score is 17.8 out of 100. 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. E. coli is the leading impairment cause in Cherry County's watershed. With 18 active water-quality monitoring sites in Cherry County, data coverage is strong. A pipeline streamflow snapshot from the Niobrara River gauge is also available on this page.

Regional Context

Cherry County has poorer water quality than the average county in Nebraska. Its water score is 40.3 points lower than the state average, suggesting more challenges with contamination control or infrastructure than 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 Cherry County's water environment

Watershed Impairment Causes (EPA ATTAINS)

  • 1

    E. coli (bacteria)

    Impairment cause per EPA Clean Water Act §303(d) assessment

  • 2

    Elevated temperature

    Impairment cause per EPA Clean Water Act §303(d) assessment

  • 3

    Mercury (fish tissue)

    Impairment cause per EPA Clean Water Act §303(d) assessment

Source: EPA ATTAINS · Reporting cycle 2022

Official EPA Resources for Cherry County

EPA How's My Waterway

Interactive watershed health data for Cherry County

EPA ECHO: Drinking Water Systems

Search water utilities and violation records for Cherry County

Consumer Confidence Reports (NE)

Annual water quality reports from utilities in Nebraska

Clean Water Act §303(d)

Watershed Health

Impaired Water Bodies

73.7%

14 of 19 assessed

High concern

Top Impairment Causes

  • 1

    ESCHERICHIA COLI (E. COLI)

  • 2

    TEMPERATURE

  • 3

    MERCURY IN FISH TISSUE

Source: EPA ATTAINS · Reporting cycle 2022

Impairment is determined under the Clean Water Act §303(d): a water body is impaired when it fails to meet state-defined quality standards for designated uses (drinking, recreation, aquatic life). Assessment coverage varies by state; counties without assessed water bodies are not shown.

Past 5 years

Water Quality Monitoring

Monitoring Sites

18

Active in the past 5 years

Measurements Recorded

7.3K

7,299 total readings

Most Measured

  • Physical
  • Nutrient
  • Microbiological

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

621cfs

May 14, 6:45 PM UTC

vs Long-Term Average

78%

Below typical

Primary Streamgage

Niobrara River near Sparks, Nebr.

USGS site
06461500
Drainage area
7,150 sq mi
Long-term mean
795 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.

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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 Cherry 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 Cherry County, Nebraska?
Cherry County, Nebraska has a drinking-water quality grade of F with a score of 17.8/100, based on EPA SDWIS compliance data. The county has 5 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 Cherry County?
Cherry County has 5 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 healthy are the watersheds in Cherry County?
EPA ATTAINS assessments under Clean Water Act §303(d) indicate 73.7% of Cherry County's 19 assessed water bodies are classified as impaired (14 impaired). The top reported causes are ESCHERICHIA COLI (E. COLI), TEMPERATURE, MERCURY IN FISH TISSUE. Impairment means the water body fails to meet state quality standards for at least one designated use — drinking water source, recreation, aquatic life, or fish consumption. Note: watershed impairment doesn't always translate to tap-water issues; treatment plants can remove most regulated contaminants.
How much water-quality monitoring happens in Cherry County?
EPA's Water Quality Portal records 7,299 measurements from 18 monitoring sites in Cherry County over the past five years. The most frequently measured characteristic groups are Physical, Nutrient, Microbiological. 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 Cherry County right now?
Cherry County's primary USGS streamgage on the Niobrara River has a pipeline snapshot of 621 cubic feet per second — 78% of the long-term mean of 795.39 cfs. Flow is within typical range for this gauge. For the latest gauge feed, visit waterdata.usgs.gov.
How does Cherry County water compare to the Nebraska average?
Cherry County's SDWIS water quality score of 17.8/100 is lower than the Nebraska state average of 58.1. The average water quality grade across Nebraska is D, based on data from 90 counties with available SDWIS data.
Is tap water safe to drink in Cherry County?
Based on EPA SDWIS data, Cherry County has a water quality grade of F (17.8/100). 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 Cherry County have clean drinking water?
Cherry County has 5 health-based drinking water violations according to EPA records. With a water quality score of 17.8/100 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 Cherry County rank for water quality in Nebraska?
Cherry County ranks #76 out of 90 counties in Nebraska by SDWIS water quality score (1 = best). With a score of 17.8/100, it falls in the bottom 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

Adams County

Nebraska

F

18.0

Water score

Cedar County

Nebraska

F

18.0

Water score

Antelope County

Nebraska

F

17.1

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.

Watershed health and impaired-waterway data from the EPA ATTAINS Clean Water Act §303(d) assessments, state-reported and EPA-finalized.

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

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