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Community Water System · PWS IL0971120

Prairie Path -Port Barrington Shores

McHenry, Illinois 60050 - drinking water served from groundwater sources to 67 people, tracked in EPA SDWIS and UCMR5.

67
People served
100
EPA violations
0
Health-based
Untested
UCMR5 result

The verdict

EPA records 100 drinking-water violations at Prairie Path -Port Barrington Shores - above the Illinois per-system average.

100
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
67
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Prairie Path -Port Barrington Shores

Prairie Path -Port Barrington Shores is a private-owned community water system that delivers drinking water to 67 residents in McHenry, Illinois (Lake County) through 34 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 100 total violations for this system , of which 0 (0%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 97 monitoring and reporting violations are on file. The most recent violation on record dates to 2005.

The most frequently cited contaminant at this system is BHC-GAMMA, recorded in 3 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, 123 of 487 UCMR5-tested systems have reported PFAS detections (25.3%).

Prairie Path -Port Barrington Shores's 100 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
67
Total Violations
100
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
34
County
Lake
School/Daycare
No
MCL Violations
0
Monitoring Violations
97
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
BHC-GAMMA MR 3 1997
Carbofuran MR 3 1997
Atrazine MR 3 1997
LASSO MR 3 1997
Heptachlor MR 3 1997
Heptachlor epoxide MR 3 1997
2,4-D MR 3 1997
2,4,5-TP MR 3 1997
Total Polychlorinated Biphenyls (PCB) MR 3 1997
1,2-DIBROMO-3-CHLOROPROPANE MR 3 1997
Endrin MR 3 1997
Diquat MR 3 1997
Di(2-ethylhexyl) adipate MR 3 1997
Simazine MR 3 1997
Di(2-ethylhexyl) phthalate MR 3 1997
Hexachlorocyclopentadiene MR 3 1997
Aldicarb sulfoxide MR 3 1997
HEXACHLOROBENZENE MR 3 1997
Benzo(a)pyrene MR 3 1997
Chlordane MR 3 1997
Endothall MR 3 1997
Dinoseb MR 3 1997
OXAMYL MR 3 1997
Pentachlorophenol MR 3 1997
Coliform (TCR) MR 3 1997
Aldicarb MR 3 1997
Aldicarb sulfone MR 3 1997
Methoxychlor MR 3 1997
Toxaphene MR 3 1997
Dalapon MR 3 1997

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 Prairie Path -Port Barrington Shores.

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 IL0971120 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 Prairie Path -Port Barrington Shores 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
2005 Consumer Confidence Rule Other 2 SDWIS / IL0971120 / 7000
1998 Lead and Copper Rule MR 1 SDWIS / IL0971120 / 5000
1997 BHC-GAMMA MR 3 SDWIS / IL0971120 / 2010
1997 Carbofuran MR 3 SDWIS / IL0971120 / 2046
1997 Atrazine MR 3 SDWIS / IL0971120 / 2050
1997 LASSO MR 3 SDWIS / IL0971120 / 2051
1997 Heptachlor MR 3 SDWIS / IL0971120 / 2065
1997 Heptachlor epoxide MR 3 SDWIS / IL0971120 / 2067
1997 2,4-D MR 3 SDWIS / IL0971120 / 2105
1997 2,4,5-TP MR 3 SDWIS / IL0971120 / 2110
1997 Total Polychlorinated Biphenyls (PCB) MR 3 SDWIS / IL0971120 / 2383
1997 1,2-DIBROMO-3-CHLOROPROPANE MR 3 SDWIS / IL0971120 / 2931
1997 Endrin MR 3 SDWIS / IL0971120 / 2005
1997 Diquat MR 3 SDWIS / IL0971120 / 2032
1997 Di(2-ethylhexyl) adipate MR 3 SDWIS / IL0971120 / 2035

How Prairie Path -Port Barrington Shores Compares

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

Metric Prairie Path -Port Barrington Shores Illinois avg Federal benchmark
Total violations 100 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 25.3% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 67 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 Prairie Path -Port Barrington Shores water safe to drink? ▼
Prairie Path -Port Barrington Shores (PWS ID: IL0971120) has 100 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 67 people using Groundwater sources.
How many people does Prairie Path -Port Barrington Shores serve? ▼
Prairie Path -Port Barrington Shores serves 67 people in McHenry, Illinois. It is a Private-owned system using Groundwater water sources with 34 service connections.
What type of violations does Prairie Path -Port Barrington Shores have? ▼
Prairie Path -Port Barrington Shores has 100 total violations: 0 health-based violations (MCL exceedances or treatment failures), 97 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Prairie Path -Port Barrington Shores water? ▼
No PFAS testing data is available for Prairie Path -Port Barrington Shores under the EPA's UCMR5 monitoring program.
What water source does Prairie Path -Port Barrington Shores use? ▼
Prairie Path -Port Barrington Shores 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.