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Manhattan, IL Tap Water Quality 2026

Water quality report for Manhattan, IL — PFAS, lead and copper results, violation history and state inspection findings from EPA SDWIS.

A look at Manhattan's drinking water using EPA enforcement records: violations, lead and copper results, PFAS sampling and state inspection findings.

Main Utility: Manhattan PWSID: IL1970550 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 1.60 ppb, 11% of the action level and no violations are open. PFAS was sampled but not enough times for a compliance determination.

B

Manhattan earns a B for water quality

Graded on violations and lead, with state inspection findings. PFAS not tested.

Lead: 1.60 ppb — 11% of the federal action level
PFAS sampled, too few results to judge
30 violations since 2015, 0 health-based
No violations currently open
Manhattan's lead level vs. all Illinois community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 1.60 ppb — 11% of the federal action level
✓ Lower lead than 72% of Illinois utilities
Population Served
7770
~3653 connections
Water Source
Groundwater
Drawn from wells — SDWIS source code GW
Active Violations
0
30 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
11% of EPA action level
1.60 ppb
Action level: 15 ppb
The 90th-percentile lead result is 1.60 ppb, 11% of the 15 ppb federal action level. The action level is a treatment trigger, not a legal maximum, and it is measured across sampled taps rather than at any single home.

Contaminant Violations (2015–Present)

ContaminantTypeMeasuredLimitPeriodStatus
ETHYLENE DIBROMIDE MONITORING AND REPORTING — 0.00005 mg/L 2023–2025 Archived
Pentachlorophenol MONITORING AND REPORTING — 0.001 mg/L 2023–2025 Archived
Total Polychlorinated Biphenyls (PCB) MONITORING AND REPORTING — 0.0005 mg/L 2023–2025 Archived
2,4,5-TP MONITORING AND REPORTING — 0.05 mg/L 2023–2025 Archived
Heptachlor MONITORING AND REPORTING — 0.0004 mg/L 2023–2025 Archived
Simazine MONITORING AND REPORTING — 0.004 mg/L 2023–2025 Archived
Endrin MONITORING AND REPORTING — 0.002 mg/L 2023–2025 Archived
Dalapon MONITORING AND REPORTING — 0.2 mg/L 2023–2025 Archived
Hexachlorocyclopentadiene MONITORING AND REPORTING — 0.05 mg/L 2023–2025 Archived
Dinoseb MONITORING AND REPORTING — 0.007 mg/L 2023–2025 Archived
Methoxychlor MONITORING AND REPORTING — 0.04 mg/L 2023–2025 Archived
Heptachlor epoxide MONITORING AND REPORTING — 0.0002 mg/L 2023–2025 Archived
Chlordane MONITORING AND REPORTING — 0.002 mg/L 2023–2025 Archived
Atrazine MONITORING AND REPORTING — 0.003 mg/L 2023–2025 Archived
Toxaphene MONITORING AND REPORTING — 0.003 mg/L 2023–2025 Archived
2,4-D MONITORING AND REPORTING — 0.07 mg/L 2023–2025 Archived
1,2-DIBROMO-3-CHLOROPROPANE MONITORING AND REPORTING — 0.0002 mg/L 2023–2025 Archived
LASSO MONITORING AND REPORTING — — 2023–2025 Archived
OXAMYL MONITORING AND REPORTING — 0.2 mg/L 2023–2025 Archived
HEXACHLOROBENZENE MONITORING AND REPORTING — 0.001 mg/L 2023–2025 Archived
Benzo(a)pyrene MONITORING AND REPORTING — 0.0002 mg/L 2023–2025 Archived
Picloram MONITORING AND REPORTING — 0.5 mg/L 2023–2025 Archived
Di(2-ethylhexyl) phthalate MONITORING AND REPORTING — 0.006 mg/L 2023–2025 Archived
Endothall MONITORING AND REPORTING — 0.1 mg/L 2023–2025 Archived
Diquat MONITORING AND REPORTING — 0.02 mg/L 2023–2025 Archived
BHC-GAMMA MONITORING AND REPORTING — 0.0002 mg/L 2023–2025 Archived
Di(2-ethylhexyl) adipate MONITORING AND REPORTING — 0.4 mg/L 2023–2025 Archived
Carbofuran MONITORING AND REPORTING — 0.04 mg/L 2023–2025 Archived
Consumer Confidence Rule OTHER — — 2019 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2017 Resolved
Understanding violation types MCL violations mean a contaminant exceeded the federal maximum limit — the most serious type.
TT (Treatment Technique) violations mean required treatment procedures weren't followed, but don't necessarily mean contamination occurred.

Violation History

30 violations are on record since 2015, of which 0 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Manhattan
PWSID IL1970550
Water source Groundwater — Drawn from wells — SDWIS source code GW
Population served 7,770
Service connections 3,653
Systems serving this area 1
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Manhattan tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 1.60 ppb, 11% of the action level.
Does Manhattan water have PFAS? ▼
It was sampled, but no sampling point had enough results for a compliance determination.
Who supplies water to Manhattan? ▼
Manhattan (PWSID IL1970550). Groundwater. Drawn from wells — SDWIS source code GW
When was this system last inspected? ▼
It was last inspected on 2024-06-20. No significant deficiencies were recorded.

What Should Manhattan Residents Do?

1
Read your annual water report
Your supplier publishes a Consumer Confidence Report each July covering the prior year.
2
Check for a lead service line
Lead reaches tap water mainly through service lines and household plumbing. Suppliers now publish an inventory identifying lead lines.
3
Flush before drinking
If water has sat in pipes more than six hours, run the cold tap for two minutes before drinking or cooking.

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