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Community Water System · PWS IL1175100

Lake Williamson Christian Center

Carlinville, Illinois 62626 - drinking water served from surface water sources to 1,250 people, tracked in EPA SDWIS and UCMR5.

1,250
People served
117
EPA violations
37
Health-based
Untested
UCMR5 result

The verdict

EPA records 117 drinking-water violations at Lake Williamson Christian Center, 32% of them health-based - above the Illinois per-system average.

117
Total EPA violations on record
32%
Health-based (MCL / treatment failure)
1,250
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Lake Williamson Christian Center

Lake Williamson Christian Center is a private-owned community water system that delivers drinking water to 1,250 residents in Carlinville, Illinois (Macoupin County) through 85 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 117 total violations for this system , of which 37 (32%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 48 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is Interim Enhanced Surface Water Treatment Rule, recorded in 20 violations (TT, 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 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%).

Lake Williamson Christian Center's 117 violations sit above 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
1,250
Total Violations
117
Health-Based Violations
37
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Private
Connections
85
County
Macoupin
School/Daycare
No
MCL Violations
13
Monitoring Violations
48
Treatment Tech Violations
20

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Interim Enhanced Surface Water Treatment Rule TT 20 2015
Coliform (TCR) MR 15 2013
Chlorine MR 12 2023
Revised Total Coliform Rule MON 10 2023
Atrazine MCL 9 1996
TTHM MR 4 2021
Total Haloacetic Acids (HAA5) MR 4 2021
Chlorine dioxide MRDL 4 2011
Chlorite MCL 4 2014
Consumer Confidence Rule Other 4 2011
Lead and Copper Rule MR 3 2025

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 Lake Williamson Christian Center.

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 IL1175100 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 Lake Williamson Christian Center under EPA-delegated authority.

Open IL regulator portal

Source: Illinois EPA, Bureau of Water

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
2025 Lead and Copper Rule MR 3 SDWIS / IL1175100 / 5000
2023 Chlorine MR 12 SDWIS / IL1175100 / 0999
2023 Revised Total Coliform Rule MON 10 SDWIS / IL1175100 / 8000
2021 TTHM MR 4 SDWIS / IL1175100 / 2950
2021 Total Haloacetic Acids (HAA5) MR 4 SDWIS / IL1175100 / 2456
2015 Interim Enhanced Surface Water Treatment Rule TT 20 SDWIS / IL1175100 / 0300
2014 Chlorite MCL 4 SDWIS / IL1175100 / 1009
2013 Coliform (TCR) MR 15 SDWIS / IL1175100 / 3100
2011 Chlorine dioxide MRDL 4 SDWIS / IL1175100 / 1008
2011 Consumer Confidence Rule Other 4 SDWIS / IL1175100 / 7000
1996 Atrazine MCL 9 SDWIS / IL1175100 / 2050

How Lake Williamson Christian Center Compares

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

Metric Lake Williamson Christian Center Illinois avg Federal benchmark
Total violations 117 69.4 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 37 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 1,250 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 Lake Williamson Christian Center water safe to drink? ▼
Lake Williamson Christian Center (PWS ID: IL1175100) has 117 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 1,250 people using Surface Water sources.
How many people does Lake Williamson Christian Center serve? ▼
Lake Williamson Christian Center serves 1,250 people in Carlinville, Illinois. It is a Private-owned system using Surface Water water sources with 85 service connections.
What type of violations does Lake Williamson Christian Center have? ▼
Lake Williamson Christian Center has 117 total violations: 37 health-based violations (MCL exceedances or treatment failures), 48 monitoring/reporting violations, and 20 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Lake Williamson Christian Center water? ▼
No PFAS testing data is available for Lake Williamson Christian Center under the EPA's UCMR5 monitoring program.
What water source does Lake Williamson Christian Center use? ▼
Lake Williamson Christian Center uses Surface Water 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. 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.