Silvis, IL Tap Water Quality 2026

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

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

Main Utility: Silvis PWSID: IL1610700 Updated: 2026 Q2
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1 violation currently open

Lead is 1.70 ppb, 11% of the action level. No PFAS was detected.

C

Silvis earns a C for water quality

Graded on violations, lead, and PFAS, with state inspection findings.

Lead: 1.70 ppb — 11% of the federal action level
PFAS tested, none detected
54 violations since 2015, 1 health-based
1 violation currently open
Silvis's lead level vs. all Illinois community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 1.70 ppb — 11% of the federal action level
✓ Lower lead than 70% of Illinois utilities
Population Served
7758
~2800 connections
Water Source
Surface water
Purchased from another system — SDWIS source code SWP
Active Violations
1
1 open of 54 since 2015

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
11% of EPA action level
1.70 ppb
Action level: 15 ppb
The 90th-percentile lead result is 1.70 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
Lead and Copper Rule MONITORING AND REPORTING — TT 2026 Resolved
Public Notice OTHER — — 2025 Resolved
LEAD AND COPPER RULE REVISIONS REPORTING FAILURE — — 2025 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2025 Unaddressed
Lead and Copper Rule MONITORING AND REPORTING — TT 2025 Unaddressed
Consumer Confidence Rule OTHER — — 2025 Unaddressed
LEAD AND COPPER RULE REVISIONS TREATMENT TECHNIQUE — — 2024 Unaddressed
Public Notice OTHER — — 2024 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2024 Resolved
Consumer Confidence Rule OTHER — — 2024 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2024 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2024 Resolved
Public Notice OTHER — — 2024 Resolved
Public Notice OTHER — — 2024 Resolved
Public Notice OTHER — — 2024 Resolved
Public Notice OTHER — — 2024 Resolved
Public Notice OTHER — — 2024 Resolved
Public Notice OTHER — — 2024 Resolved
Public Notice OTHER — — 2024 Resolved
Public Notice OTHER — — 2024 Resolved
Public Notice OTHER — — 2024 Resolved
Public Notice OTHER — — 2024 Resolved
Public Notice OTHER — — 2024 Resolved
Public Notice OTHER — — 2024 Resolved
Public Notice OTHER — — 2024 Resolved
Public Notice OTHER — — 2024 Resolved
Public Notice OTHER — — 2024 Resolved
Public Notice OTHER — — 2024 Resolved
Public Notice OTHER — — 2024 Resolved
Public Notice OTHER — — 2024 Resolved
Public Notice OTHER — — 2024 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2024 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2023 Resolved
Public Notice OTHER — — 2023 Resolved
Public Notice OTHER — — 2023 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2023 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2023–2025 Archived
Nitrate MONITORING AND REPORTING — 10 mg/L 2022 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2021 Resolved
Nitrate MONITORING AND REPORTING — 10 mg/L 2021 Resolved
Nitrate MONITORING AND REPORTING — 10 mg/L 2021 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2020 Resolved
Nitrite MONITORING AND REPORTING — 1 mg/L 2020–2022 Resolved
Antimony, Total MONITORING AND REPORTING — 0.006 mg/L 2020–2022 Resolved
Chromium MONITORING AND REPORTING — 0.1 mg/L 2020–2022 Resolved
Cadmium MONITORING AND REPORTING — 0.005 mg/L 2020–2022 Resolved
Fluoride MONITORING AND REPORTING — 4.0 mg/L 2020–2022 Resolved
Thallium, Total MONITORING AND REPORTING — 0.002 mg/L 2020–2022 Resolved
Beryllium, Total MONITORING AND REPORTING — 0.004 mg/L 2020–2022 Resolved
Nickel MONITORING AND REPORTING — — 2020–2022 Resolved
Selenium MONITORING AND REPORTING — 0.05 mg/L 2020–2022 Resolved
Barium MONITORING AND REPORTING — 2 mg/L 2020–2022 Resolved
Mercury MONITORING AND REPORTING — 0.002 mg/L 2020–2022 Resolved
Arsenic MONITORING AND REPORTING — 0.010 mg/L 2020–2022 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

1 violation remains open, out of 54 recorded since 2015 (1 health-based).

About the Main Water System

Utility Silvis
PWSID IL1610700
Water source Surface water — Purchased from another system — SDWIS source code SWP
Population served 7,758
Service connections 2,800
Systems serving this area 6
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Silvis tap water safe to drink? ▼
No federal limit is exceeded on record. 1 violation(s) remain open. Lead is 1.70 ppb, 11% of the action level.
Does Silvis water have PFAS? ▼
It was tested for the six regulated PFAS compounds and none were detected.
Who supplies water to Silvis? ▼
Silvis (PWSID IL1610700), one of 6 systems serving this area. Surface water. Purchased from another system — SDWIS source code SWP
When was this system last inspected? ▼
It was last inspected on 2026-03-18. No significant deficiencies were recorded.

What Should Silvis 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
Follow the open violation
This system has an unresolved violation. Contact the supplier for its corrective-action schedule.

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