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Non-Transient Non-Community Water System · PWS NE3120233

Chesterman Co

Grand Island, Nebraska 68803 - drinking water served from groundwater sources to 38 people, tracked in EPA SDWIS and UCMR5.

38
People served
141
EPA violations
112
Health-based
Untested
UCMR5 result

The verdict

EPA records 141 drinking-water violations at Chesterman Co, 79% of them health-based - above the Nebraska per-system average.

141
Total EPA violations on record
79%
Health-based (MCL / treatment failure)
38
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Chesterman Co

Chesterman Co is a private-owned non-transient non-community water system that delivers drinking water to 38 residents in Grand Island, Nebraska (Hall County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 141 total violations for this system , of which 112 (79%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 25 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is Nitrate-Nitrite, recorded in 100 violations (MCL, health-based). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Nebraska, EPA tracks 1,309 public water systems serving 1,798,088 people, with 49,989 cumulative violations and 32,716 health-based violations on record. About 89% of systems in the state carry at least one violation, and state-wide the average per system is 38.2 violations. Statewide, 52 of 53 UCMR5-tested systems have reported PFAS detections (98.1%).

Chesterman Co's 141 violations sit above the Nebraska average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
38
Total Violations
141
Health-Based Violations
112
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Private
Connections
1
County
Hall
School/Daycare
No
MCL Violations
112
Monitoring Violations
25
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Nitrate-Nitrite MCL 100 2011
Coliform (TCR) MR 12 2007
Nitrate-Nitrite MR 7 2004
Revised Total Coliform Rule MCL 6 2023
Coliform (TCR) MCL 4 2000
Revised Total Coliform Rule MON 4 2024
Lead and Copper Rule MR 2 1994
Nitrate MCL 2 1997
LEAD AND COPPER RULE REVISIONS RPT 2 2024
Public Notice Other 2 2004

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Chesterman Co.

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID NE3120233 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Nebraska Drinking Water Authority

Nebraska's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find NE regulator via EPA SDWIS

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2024 Revised Total Coliform Rule MON 4 SDWIS / NE3120233 / 8000
2024 LEAD AND COPPER RULE REVISIONS RPT 2 SDWIS / NE3120233 / 5200
2023 Revised Total Coliform Rule MCL 6 SDWIS / NE3120233 / 8000
2011 Nitrate-Nitrite MCL 100 SDWIS / NE3120233 / 1038
2007 Coliform (TCR) MR 12 SDWIS / NE3120233 / 3100
2004 Nitrate-Nitrite MR 7 SDWIS / NE3120233 / 1038
2004 Public Notice Other 2 SDWIS / NE3120233 / 7500
2000 Coliform (TCR) MCL 4 SDWIS / NE3120233 / 3100
1997 Nitrate MCL 2 SDWIS / NE3120233 / 1040
1994 Lead and Copper Rule MR 2 SDWIS / NE3120233 / 5000

How Chesterman Co Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric Chesterman Co Nebraska avg Federal benchmark
Total violations 141 38.2 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 112 25 Indicates a contaminant exceeded a federal MCL
PFAS detection None 98.1% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 38 1,374 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 1,309 regulated public water systems in Nebraska.

Federal MCL reference, Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Chesterman Co water safe to drink? ▼
Chesterman Co (PWS ID: NE3120233) has 141 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 38 people using Groundwater sources.
How many people does Chesterman Co serve? ▼
Chesterman Co serves 38 people in Grand Island, Nebraska. It is a Private-owned system using Groundwater water sources with 1 service connections.
What type of violations does Chesterman Co have? ▼
Chesterman Co has 141 total violations: 112 health-based violations (MCL exceedances or treatment failures), 25 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Chesterman Co water? ▼
No PFAS testing data is available for Chesterman Co under the EPA's UCMR5 monitoring program.
What water source does Chesterman Co use? ▼
Chesterman Co uses Groundwater as its primary water source. It is classified as a Non-Transient Non-Community Water System, serving the same people for at least 6 months per year.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.