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Community Water System · PWS NE3107902

Grand Island, City Of

Grand Island, Nebraska 68802-1968 - drinking water served from groundwater sources to 51,478 people, tracked in EPA SDWIS and UCMR5.

51,478
People served
11
EPA violations
8
Health-based
4 PFAS
UCMR5 result

The verdict

EPA records 11 drinking-water violations at Grand Island, City Of, 73% of them health-based - below the Nebraska per-system average, and UCMR5 testing detected 4 PFAS compounds.

11
Total EPA violations on record
73%
Health-based (MCL / treatment failure)
51,478
People served by this system
4
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Grand Island, City Of

Grand Island, City Of is a local-owned community water system that delivers drinking water to 51,478 residents in Grand Island, Nebraska (Hall County) through 17,078 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 11 total violations for this system , of which 8 (73%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 3 monitoring and reporting violations are on file. The most recent violation on record dates to 2010.

The most frequently cited contaminant at this system is 1,1-Dichloroethylene, recorded in 4 violations (MCL, health-based). Under EPA's UCMR5 PFAS monitoring program, 4 PFAS compounds were detected in samples collected from this system, with a maximum reported concentration of 24.6 ppt (parts per trillion). PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

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%).

Grand Island, City Of's 11 violations sit below 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.

PFAS Detected

4 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.

Population Served
51,478
Total Violations
11
Health-Based Violations
8
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
17,078
County
Hall
School/Daycare
No
MCL Violations
4
Monitoring Violations
3
Treatment Tech Violations
4

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
1,1-Dichloroethylene MCL 4 2001
Lead and Copper Rule TT 4 1998
Radium-228 MR 1 2010
Combined Radium (-226 and -228) MR 1 2010
Gross Alpha, Excl. Radon and U MR 1 2008

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 6 of 464 samples detected PFAS.

Contaminant Date Result MRL Status
HFPO-DA 6/14/2023 <5.00 ppt 5.00 ppt Not Detected
PFHpS 6/14/2023 <3.00 ppt 3.00 ppt Not Detected
PFNA 6/14/2023 <4.00 ppt 4.00 ppt Not Detected
PFOS 6/14/2023 <4.00 ppt 4.00 ppt Not Detected
PFOA 6/14/2023 <4.00 ppt 4.00 ppt Not Detected
PFDA 6/14/2023 <3.00 ppt 3.00 ppt Not Detected
PFDoA 6/14/2023 <3.00 ppt 3.00 ppt Not Detected
PFHxA 6/14/2023 <3.00 ppt 3.00 ppt Not Detected
PFUnA 6/14/2023 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 6/14/2023 <5.00 ppt 5.00 ppt Not Detected
9Cl-PF3ONS 6/14/2023 <2.00 ppt 2.00 ppt Not Detected
PFPeS 6/14/2023 <4.00 ppt 4.00 ppt Not Detected
PFBS 6/14/2023 <3.00 ppt 3.00 ppt Not Detected
PFMBA 6/14/2023 <3.00 ppt 3.00 ppt Not Detected
PFHxS 6/14/2023 <3.00 ppt 3.00 ppt Not Detected
ADONA 6/14/2023 <3.00 ppt 3.00 ppt Not Detected
PFEESA 6/14/2023 <3.00 ppt 3.00 ppt Not Detected
PFBA 6/14/2023 <5.00 ppt 5.00 ppt Not Detected
PFPeA 6/14/2023 <3.00 ppt 3.00 ppt Not Detected
PFMPA 6/14/2023 <4.00 ppt 4.00 ppt Not Detected
8:2 FTS 6/14/2023 <5.00 ppt 5.00 ppt Not Detected
4:2 FTS 6/14/2023 <3.00 ppt 3.00 ppt Not Detected
PFHpA 6/14/2023 <3.00 ppt 3.00 ppt Not Detected
6:2 FTS 6/14/2023 <5.00 ppt 5.00 ppt Not Detected
NFDHA 6/14/2023 <20.00 ppt 20.00 ppt Not Detected
PFHpS 6/14/2023 <3.00 ppt 3.00 ppt Not Detected
9Cl-PF3ONS 6/14/2023 <2.00 ppt 2.00 ppt Not Detected
HFPO-DA 6/14/2023 <5.00 ppt 5.00 ppt Not Detected
6:2 FTS 6/14/2023 <5.00 ppt 5.00 ppt Not Detected
4:2 FTS 6/14/2023 <3.00 ppt 3.00 ppt Not Detected
8:2 FTS 6/14/2023 <5.00 ppt 5.00 ppt Not Detected
PFMPA 6/14/2023 <4.00 ppt 4.00 ppt Not Detected
11Cl-PF3OUdS 6/14/2023 <5.00 ppt 5.00 ppt Not Detected
PFMBA 6/14/2023 <3.00 ppt 3.00 ppt Not Detected
ADONA 6/14/2023 <3.00 ppt 3.00 ppt Not Detected
PFEESA 6/14/2023 <3.00 ppt 3.00 ppt Not Detected
NFDHA 6/14/2023 <20.00 ppt 20.00 ppt Not Detected
PFPeA 6/14/2023 <3.00 ppt 3.00 ppt Not Detected
PFNA 6/14/2023 <4.00 ppt 4.00 ppt Not Detected
PFBA 6/14/2023 <5.00 ppt 5.00 ppt Not Detected
PFUnA 6/14/2023 <2.00 ppt 2.00 ppt Not Detected
PFBS 6/14/2023 <3.00 ppt 3.00 ppt Not Detected
PFPeS 6/14/2023 <4.00 ppt 4.00 ppt Not Detected
PFHxS 6/14/2023 <3.00 ppt 3.00 ppt Not Detected
PFOS 6/14/2023 <4.00 ppt 4.00 ppt Not Detected
PFOA 6/14/2023 <4.00 ppt 4.00 ppt Not Detected
PFDA 6/14/2023 <3.00 ppt 3.00 ppt Not Detected
PFDoA 6/14/2023 <3.00 ppt 3.00 ppt Not Detected
PFHxA 6/14/2023 <3.00 ppt 3.00 ppt Not Detected
PFHpA 6/14/2023 <3.00 ppt 3.00 ppt Not Detected

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 Grand Island, City Of.

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 NE3107902 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
2010 Radium-228 MR 1 SDWIS / NE3107902 / 4030
2010 Combined Radium (-226 and -228) MR 1 SDWIS / NE3107902 / 4010
2008 Gross Alpha, Excl. Radon and U MR 1 SDWIS / NE3107902 / 4000
2001 1,1-Dichloroethylene MCL 4 SDWIS / NE3107902 / 2977
1998 Lead and Copper Rule TT 4 SDWIS / NE3107902 / 5000

How Grand Island, City Of Compares

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

Metric Grand Island, City Of Nebraska avg Federal benchmark
Total violations 11 38.2 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 8 25 Indicates a contaminant exceeded a federal MCL
PFAS detection 4 compounds 98.1% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 51,478 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 Grand Island, City Of water safe to drink? ▼
Grand Island, City Of (PWS ID: NE3107902) has 11 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 4 PFAS compounds found. This system serves 51,478 people using Groundwater sources.
How many people does Grand Island, City Of serve? ▼
Grand Island, City Of serves 51,478 people in Grand Island, Nebraska. It is a Local-owned system using Groundwater water sources with 17,078 service connections.
What type of violations does Grand Island, City Of have? ▼
Grand Island, City Of has 11 total violations: 8 health-based violations (MCL exceedances or treatment failures), 3 monitoring/reporting violations, and 4 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Grand Island, City Of water? ▼
Yes. UCMR5 testing detected 4 PFAS compounds in Grand Island, City Of's water supply: PFOS, PFPeA, PFHxS, PFBS. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does Grand Island, City Of use? ▼
Grand Island, City Of uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
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. PFAS data from EPA UCMR5 monitoring program (2023-2025). 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.