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Non-Transient Non-Community Water System · PWS IL3155762

Northfield Block Company 3

Morris, Illinois 60450 - drinking water served from groundwater sources to 75 people, tracked in EPA SDWIS and UCMR5.

75
People served
1,690
EPA violations
0
Health-based
Untested
UCMR5 result

The verdict

EPA records 1,690 drinking-water violations at Northfield Block Company 3 - above the Illinois per-system average.

1,690
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
75
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Northfield Block Company 3

Northfield Block Company 3 is a private-owned non-transient non-community water system that delivers drinking water to 75 residents in Morris, Illinois (Grundy County) through 2 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 1,690 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 1,689 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 Carbofuran, recorded in 40 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%).

Northfield Block Company 3's 1,690 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
75
Total Violations
1,690
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Private
Connections
2
County
Grundy
School/Daycare
No
MCL Violations
0
Monitoring Violations
1,689
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Carbofuran MR 40 2020
2,4-D MR 40 2020
Pentachlorophenol MR 40 2020
2,4,5-TP MR 40 2020
trans-1,2-Dichloroethylene MR 38 2019
cis-1,2-Dichloroethylene MR 38 2019
Xylenes, Total MR 38 2019
o-Dichlorobenzene MR 38 2019
Vinyl chloride MR 38 2019
1,1-Dichloroethylene MR 38 2019
1,2-Dichloroethane MR 38 2019
1,1,1-Trichloroethane MR 38 2019
1,2-Dichloropropane MR 38 2019
Trichloroethylene MR 38 2019
Tetrachloroethylene MR 38 2019
Benzene MR 38 2019
Ethylbenzene MR 38 2019
Styrene MR 38 2019
1,2,4-Trichlorobenzene MR 38 2019
Carbon tetrachloride MR 38 2019
CHLOROBENZENE MR 38 2019
Toluene MR 38 2019
DICHLOROMETHANE MR 38 2019
1,1,2-Trichloroethane MR 38 2019
p-Dichlorobenzene MR 38 2019
ETHYLENE DIBROMIDE MR 37 2015
Chlordane MR 37 2015
BHC-GAMMA MR 37 2015
Toxaphene MR 37 2015
Heptachlor epoxide MR 37 2015

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 Northfield Block Company 3.

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 IL3155762 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 Northfield Block Company 3 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 28 SDWIS / IL3155762 / 5000
2020 Carbofuran MR 40 SDWIS / IL3155762 / 2046
2020 2,4-D MR 40 SDWIS / IL3155762 / 2105
2020 Pentachlorophenol MR 40 SDWIS / IL3155762 / 2326
2020 2,4,5-TP MR 40 SDWIS / IL3155762 / 2110
2020 OXAMYL MR 21 SDWIS / IL3155762 / 2036
2020 Picloram MR 21 SDWIS / IL3155762 / 2040
2020 Nitrate MR 6 SDWIS / IL3155762 / 1040
2020 Barium MR 3 SDWIS / IL3155762 / 1010
2020 Chromium MR 3 SDWIS / IL3155762 / 1020
2020 Mercury MR 3 SDWIS / IL3155762 / 1035
2020 Antimony, Total MR 3 SDWIS / IL3155762 / 1074
2020 Thallium, Total MR 3 SDWIS / IL3155762 / 1085
2020 Cadmium MR 3 SDWIS / IL3155762 / 1015
2020 Beryllium, Total MR 3 SDWIS / IL3155762 / 1075

How Northfield Block Company 3 Compares

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

Metric Northfield Block Company 3 Illinois avg Federal benchmark
Total violations 1,690 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 75 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 Northfield Block Company 3 water safe to drink? ▼
Northfield Block Company 3 (PWS ID: IL3155762) has 1690 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 75 people using Groundwater sources.
How many people does Northfield Block Company 3 serve? ▼
Northfield Block Company 3 serves 75 people in Morris, Illinois. It is a Private-owned system using Groundwater water sources with 2 service connections.
What type of violations does Northfield Block Company 3 have? ▼
Northfield Block Company 3 has 1,690 total violations: 0 health-based violations (MCL exceedances or treatment failures), 1,689 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Northfield Block Company 3 water? ▼
No PFAS testing data is available for Northfield Block Company 3 under the EPA's UCMR5 monitoring program.
What water source does Northfield Block Company 3 use? ▼
Northfield Block Company 3 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.