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Transient Non-Community Water System · PWS NE3120071

Crystal Lake

Ayr, Nebraska 68925 - drinking water served from groundwater sources to 300 people, tracked in EPA SDWIS and UCMR5.

300
People served
55
EPA violations
28
Health-based
Untested
UCMR5 result

The verdict

EPA records 55 drinking-water violations at Crystal Lake, 51% of them health-based - above the Nebraska per-system average.

55
Total EPA violations on record
51%
Health-based (MCL / treatment failure)
300
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Crystal Lake

Crystal Lake is a local-owned transient non-community water system that delivers drinking water to 300 residents in Ayr, Nebraska (Adams County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 55 total violations for this system , of which 28 (51%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 16 monitoring and reporting violations are on file. The most recent violation on record dates to 2023.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 18 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%).

Crystal Lake's 55 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
300
Total Violations
55
Health-Based Violations
28
Water Source
Groundwater

System Details

System Type
Transient Non-Community
Owner Type
Local
Connections
1
County
Adams
School/Daycare
No
MCL Violations
24
Monitoring Violations
16
Treatment Tech Violations
4

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 18 2011
Nitrate-Nitrite MR 8 2001
Revised Total Coliform Rule MCL 6 2023
Coliform (TCR) MR 4 2012
Stage 1 Disinfectants and Disinfection Byproducts Rule TT 4 2017
Revised Total Coliform Rule MON 4 2019

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 Crystal Lake.

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 NE3120071 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
2023 Revised Total Coliform Rule MCL 6 SDWIS / NE3120071 / 8000
2019 Revised Total Coliform Rule MON 4 SDWIS / NE3120071 / 8000
2017 Stage 1 Disinfectants and Disinfection Byproducts Rule TT 4 SDWIS / NE3120071 / 0400
2012 Coliform (TCR) MR 4 SDWIS / NE3120071 / 3100
2011 Coliform (TCR) MCL 18 SDWIS / NE3120071 / 3100
2001 Nitrate-Nitrite MR 8 SDWIS / NE3120071 / 1038

How Crystal Lake Compares

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

Metric Crystal Lake Nebraska avg Federal benchmark
Total violations 55 38.2 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 28 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 300 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 Crystal Lake water safe to drink? ▼
Crystal Lake (PWS ID: NE3120071) has 55 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 300 people using Groundwater sources.
How many people does Crystal Lake serve? ▼
Crystal Lake serves 300 people in Ayr, Nebraska. It is a Local-owned system using Groundwater water sources with 1 service connections.
What type of violations does Crystal Lake have? ▼
Crystal Lake has 55 total violations: 28 health-based violations (MCL exceedances or treatment failures), 16 monitoring/reporting violations, and 4 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Crystal Lake water? ▼
No PFAS testing data is available for Crystal Lake under the EPA's UCMR5 monitoring program.
What water source does Crystal Lake use? ▼
Crystal Lake uses Groundwater as its primary water source. It is classified as a Transient Non-Community Water System, serving transient populations.
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.