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Community Water System · PWS IL0995050

Land and Wtr Assn

Ottawa, Illinois 61350 - drinking water served from groundwater sources to 83 people, tracked in EPA SDWIS and UCMR5.

83
People served
227
EPA violations
65
Health-based
Untested
UCMR5 result

The verdict

EPA records 227 drinking-water violations at Land and Wtr Assn, 29% of them health-based - above the Illinois per-system average.

227
Total EPA violations on record
29%
Health-based (MCL / treatment failure)
83
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Land and Wtr Assn

Land and Wtr Assn is a private-owned community water system that delivers drinking water to 83 residents in Ottawa, Illinois (LaSalle County) through 33 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 227 total violations for this system , of which 65 (29%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 124 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 Combined Radium (-226 and -228), recorded in 61 violations (MCL, 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, 123 of 487 UCMR5-tested systems have reported PFAS detections (25.3%).

Land and Wtr Assn's 227 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
83
Total Violations
227
Health-Based Violations
65
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
33
County
LaSalle
School/Daycare
No
MCL Violations
65
Monitoring Violations
124
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Combined Radium (-226 and -228) MCL 61 2025
Coliform (TCR) MR 15 2004
Public Notice Other 7 2025
cis-1,2-Dichloroethylene MR 6 1993
Xylenes, Total MR 6 1993
o-Dichlorobenzene MR 6 1993
p-Dichlorobenzene MR 6 1993
1,1-Dichloroethylene MR 6 1993
1,2-Dichloroethane MR 6 1993
1,2-Dichloropropane MR 6 1993
Tetrachloroethylene MR 6 1993
CHLOROBENZENE MR 6 1993
Toluene MR 6 1993
Ethylbenzene MR 6 1993
Styrene MR 6 1993
Trichloroethylene MR 6 1993
1,1,1-Trichloroethane MR 6 1993
Carbon tetrachloride MR 6 1993
Benzene MR 6 1993
trans-1,2-Dichloroethylene MR 6 1993
Consumer Confidence Rule Other 4 2013
Coliform (TCR) MCL 4 2014
Chlorine MR 4 2004
Lead and Copper Rule MR 2 2010
Gross Alpha, Excl. Radon and U MR 1 1977

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 Land and Wtr Assn.

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 IL0995050 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 Land and Wtr Assn 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 Combined Radium (-226 and -228) MCL 61 SDWIS / IL0995050 / 4010
2025 Public Notice Other 7 SDWIS / IL0995050 / 7500
2014 Coliform (TCR) MCL 4 SDWIS / IL0995050 / 3100
2013 Consumer Confidence Rule Other 4 SDWIS / IL0995050 / 7000
2010 Lead and Copper Rule MR 2 SDWIS / IL0995050 / 5000
2004 Coliform (TCR) MR 15 SDWIS / IL0995050 / 3100
2004 Chlorine MR 4 SDWIS / IL0995050 / 0999
1993 cis-1,2-Dichloroethylene MR 6 SDWIS / IL0995050 / 2380
1993 Xylenes, Total MR 6 SDWIS / IL0995050 / 2955
1993 o-Dichlorobenzene MR 6 SDWIS / IL0995050 / 2968
1993 p-Dichlorobenzene MR 6 SDWIS / IL0995050 / 2969
1993 1,1-Dichloroethylene MR 6 SDWIS / IL0995050 / 2977
1993 1,2-Dichloroethane MR 6 SDWIS / IL0995050 / 2980
1993 1,2-Dichloropropane MR 6 SDWIS / IL0995050 / 2983
1993 Tetrachloroethylene MR 6 SDWIS / IL0995050 / 2987

How Land and Wtr Assn Compares

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

Metric Land and Wtr Assn Illinois avg Federal benchmark
Total violations 227 69.4 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 65 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 83 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 Land and Wtr Assn water safe to drink? ▼
Land and Wtr Assn (PWS ID: IL0995050) has 227 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 83 people using Groundwater sources.
How many people does Land and Wtr Assn serve? ▼
Land and Wtr Assn serves 83 people in Ottawa, Illinois. It is a Private-owned system using Groundwater water sources with 33 service connections.
What type of violations does Land and Wtr Assn have? ▼
Land and Wtr Assn has 227 total violations: 65 health-based violations (MCL exceedances or treatment failures), 124 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Land and Wtr Assn water? ▼
No PFAS testing data is available for Land and Wtr Assn under the EPA's UCMR5 monitoring program.
What water source does Land and Wtr Assn use? ▼
Land and Wtr Assn 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.