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Community Water System · PWS IL1435490

Santa Fe Estates Water Association

Chillicothe, Illinois 61523 - drinking water served from groundwater sources to 68 people, tracked in EPA SDWIS and UCMR5.

68
People served
63
EPA violations
8
Health-based
Untested
UCMR5 result

The verdict

EPA records 63 drinking-water violations at Santa Fe Estates Water Association, 13% of them health-based - below the Illinois per-system average.

63
Total EPA violations on record
13%
Health-based (MCL / treatment failure)
68
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Santa Fe Estates Water Association

Santa Fe Estates Water Association is a private-owned community water system that delivers drinking water to 68 residents in Chillicothe, Illinois (Peoria County) through 27 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 63 total violations for this system , of which 8 (13%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 22 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 8 violations (MR). 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%).

Santa Fe Estates Water Association's 63 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
68
Total Violations
63
Health-Based Violations
8
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
27
County
Peoria
School/Daycare
No
MCL Violations
4
Monitoring Violations
22
Treatment Tech Violations
4

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 8 2005
Chlorine MR 8 2005
Lead and Copper Rule MR 6 2023
Lead and Copper Rule TT 4 1998
Gross Alpha, Excl. Radon and U MCL 3 2000
Combined Radium (-226 and -228) MCL 1 1999

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 Santa Fe Estates Water Association.

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 IL1435490 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 Santa Fe Estates Water Association 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
2023 Lead and Copper Rule MR 6 SDWIS / IL1435490 / 5000
2005 Coliform (TCR) MR 8 SDWIS / IL1435490 / 3100
2005 Chlorine MR 8 SDWIS / IL1435490 / 0999
2000 Gross Alpha, Excl. Radon and U MCL 3 SDWIS / IL1435490 / 4000
1999 Combined Radium (-226 and -228) MCL 1 SDWIS / IL1435490 / 4010
1998 Lead and Copper Rule TT 4 SDWIS / IL1435490 / 5000

How Santa Fe Estates Water Association Compares

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

Metric Santa Fe Estates Water Association Illinois avg Federal benchmark
Total violations 63 69.4 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 8 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 68 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 Santa Fe Estates Water Association water safe to drink? ▼
Santa Fe Estates Water Association (PWS ID: IL1435490) has 63 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 68 people using Groundwater sources.
How many people does Santa Fe Estates Water Association serve? ▼
Santa Fe Estates Water Association serves 68 people in Chillicothe, Illinois. It is a Private-owned system using Groundwater water sources with 27 service connections.
What type of violations does Santa Fe Estates Water Association have? ▼
Santa Fe Estates Water Association has 63 total violations: 8 health-based violations (MCL exceedances or treatment failures), 22 monitoring/reporting violations, and 4 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Santa Fe Estates Water Association water? ▼
No PFAS testing data is available for Santa Fe Estates Water Association under the EPA's UCMR5 monitoring program.
What water source does Santa Fe Estates Water Association use? ▼
Santa Fe Estates Water Association 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. 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.