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Non-Transient Non-Community Water System · PWS IL3150169

Merichkas

Crest Hill, Illinois 60435 - drinking water served from groundwater sources to 700 people, tracked in EPA SDWIS and UCMR5.

700
People served
244
EPA violations
4
Health-based
Untested
UCMR5 result

The verdict

EPA records 244 drinking-water violations at Merichkas, 2% of them health-based - above the Illinois per-system average.

244
Total EPA violations on record
2%
Health-based (MCL / treatment failure)
700
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Merichkas

Merichkas is a private-owned non-transient non-community water system that delivers drinking water to 700 residents in Crest Hill, Illinois (Will County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 244 total violations for this system , of which 4 (2%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 236 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is 2,4,5-TP, recorded in 6 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%).

Merichkas's 244 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
700
Total Violations
244
Health-Based Violations
4
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Private
Connections
1
County
Will
School/Daycare
No
MCL Violations
0
Monitoring Violations
236
Treatment Tech Violations
4

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
2,4,5-TP MR 6 2007
BHC-GAMMA MR 6 2007
Pentachlorophenol MR 6 2007
Total Polychlorinated Biphenyls (PCB) MR 6 2007
ETHYLENE DIBROMIDE MR 6 2007
Chlordane MR 6 2007
Methoxychlor MR 6 2007
Carbofuran MR 6 2007
Atrazine MR 6 2007
LASSO MR 6 2007
Heptachlor MR 6 2007
2,4-D MR 6 2007
1,2-DIBROMO-3-CHLOROPROPANE MR 6 2007
Toxaphene MR 6 2007
Heptachlor epoxide MR 6 2007
Barium MR 4 2017
Cadmium MR 4 2017
CYANIDE MR 4 2017
LEAD AND COPPER RULE REVISIONS RPT 4 2024
Thallium, Total MR 4 2017
Antimony, Total MR 4 2017
Chromium MR 4 2017
Selenium MR 4 2017
Mercury MR 4 2017
LEAD AND COPPER RULE REVISIONS TT 4 2024
Beryllium, Total MR 4 2017
p-Dichlorobenzene MR 3 2007
trans-1,2-Dichloroethylene MR 3 2007
1,2-Dichloroethane MR 3 2007
1,1,1-Trichloroethane MR 3 2007

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 Merichkas.

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 IL3150169 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 Merichkas 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
2024 LEAD AND COPPER RULE REVISIONS RPT 4 SDWIS / IL3150169 / 5200
2024 LEAD AND COPPER RULE REVISIONS TT 4 SDWIS / IL3150169 / 5200
2024 Lead and Copper Rule MR 2 SDWIS / IL3150169 / 5000
2017 Barium MR 4 SDWIS / IL3150169 / 1010
2017 Cadmium MR 4 SDWIS / IL3150169 / 1015
2017 CYANIDE MR 4 SDWIS / IL3150169 / 1024
2017 Thallium, Total MR 4 SDWIS / IL3150169 / 1085
2017 Antimony, Total MR 4 SDWIS / IL3150169 / 1074
2017 Chromium MR 4 SDWIS / IL3150169 / 1020
2017 Selenium MR 4 SDWIS / IL3150169 / 1045
2017 Mercury MR 4 SDWIS / IL3150169 / 1035
2017 Beryllium, Total MR 4 SDWIS / IL3150169 / 1075
2017 Nitrite MR 2 SDWIS / IL3150169 / 1041
2017 Arsenic MR 1 SDWIS / IL3150169 / 1005
2007 2,4,5-TP MR 6 SDWIS / IL3150169 / 2110

How Merichkas Compares

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

Metric Merichkas Illinois avg Federal benchmark
Total violations 244 69.4 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 4 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 700 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 Merichkas water safe to drink? ▼
Merichkas (PWS ID: IL3150169) has 244 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 700 people using Groundwater sources.
How many people does Merichkas serve? ▼
Merichkas serves 700 people in Crest Hill, Illinois. It is a Private-owned system using Groundwater water sources with 1 service connections.
What type of violations does Merichkas have? ▼
Merichkas has 244 total violations: 4 health-based violations (MCL exceedances or treatment failures), 236 monitoring/reporting violations, and 4 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Merichkas water? ▼
No PFAS testing data is available for Merichkas under the EPA's UCMR5 monitoring program.
What water source does Merichkas use? ▼
Merichkas 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.