PlainWater
States → Illinois

Non-Transient Non-Community Water System · PWS IL3093112

Constellation Byron Generating Station

Byron, Illinois 61010 - drinking water served from groundwater sources to 600 people, tracked in EPA SDWIS and UCMR5.

600
People served
0
EPA violations
0
Health-based
Untested
UCMR5 result

The verdict

Constellation Byron Generating Station carries a clean Safe Drinking Water Act record, zero EPA violations.

0
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
600
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Constellation Byron Generating Station

Constellation Byron Generating Station is a private-owned non-transient non-community water system that delivers drinking water to 600 residents in Byron, Illinois (Ogle County) through 5 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 0 total violations for this system , giving it a clean Safe Drinking Water Act compliance record.

No specific contaminant violations have been recorded in EPA's detailed violation register for this system. This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Illinois, EPA tracks 5,117 public water systems serving 12,576,876 people, with 355,322 cumulative violations and 52,932 health-based violations on record. About 81% of systems in the state carry at least one violation, and state-wide the average per system is 69.4 violations. Statewide, 199 of 487 UCMR5-tested systems have reported PFAS detections (40.9%).

Constellation Byron Generating Station's 0 violations sit below the Illinois 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
600
Total Violations
0
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Private
Connections
5
County
Ogle
School/Daycare
No
MCL Violations
0
Monitoring Violations
0
Treatment Tech Violations
0

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 Constellation Byron Generating Station.

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 IL3093112 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Illinois Drinking Water Authority

Illinois EPA, Bureau of Water is the primacy agency that licenses and inspects Constellation Byron Generating Station under EPA-delegated authority.

Open IL regulator portal

Source: Illinois EPA, Bureau of Water

How Constellation Byron Generating Station Compares

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

Metric Constellation Byron Generating Station Illinois avg Federal benchmark
Total violations 0 69.4 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 0 10.3 Indicates a contaminant exceeded a federal MCL
PFAS detection None 40.9% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 600 2,458 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 5,117 regulated public water systems in Illinois.

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 Constellation Byron Generating Station water safe to drink? ▼
Constellation Byron Generating Station (PWS ID: IL3093112) has 0 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 600 people using Groundwater sources.
How many people does Constellation Byron Generating Station serve? ▼
Constellation Byron Generating Station serves 600 people in Byron, Illinois. It is a Private-owned system using Groundwater water sources with 5 service connections.
What type of violations does Constellation Byron Generating Station have? ▼
Constellation Byron Generating Station has 0 total violations: 0 health-based violations (MCL exceedances or treatment failures), 0 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Constellation Byron Generating Station water? ▼
No PFAS testing data is available for Constellation Byron Generating Station under the EPA's UCMR5 monitoring program.
What water source does Constellation Byron Generating Station use? ▼
Constellation Byron Generating Station 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.