No open health-based violations on EPA record in the last 10 years; latest legal-limit breach in the period starting July 2025.
Serves about 500 people (188 connections) with surface water from its own intake.
From EPA's record for IL0910020. PurityMap is independent of Lake Shannon.
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4 health-based violations in the last 10 years, from EPA's SDWIS compliance database.
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| Jul–Sep 2025 | Total trihalomethanes (TTHM) | 0.084 mg/L | 0.080 mg/L | Resolved |
| Apr–Jun 2024 | Total trihalomethanes (TTHM) | 0.088 mg/L | 0.080 mg/L | Resolved |
| Jan–Mar 2024 | Total trihalomethanes (TTHM) | 0.083 mg/L | 0.080 mg/L | Resolved |
| Oct–Dec 2021 | Total trihalomethanes (TTHM) | 0.081 mg/L | 0.080 mg/L | Resolved |
No lab results for other contaminants (like PFAS) are on file for this system. EPA required that testing from systems serving more than 3,300 people, plus a sample of smaller ones.
Screening tells you if something is worth a closer look; a lab result is the number you can act on.
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Screening: quick check, not lab-grade
Safe Home (EnviroTestKits)
Lead, read as one of three ranges: 0–4, 5–15 or 15+ ppb
Turnaround: 5 minutes
What it can't tell you: It shows a lead range, not an exact level, and tests nothing else unless you pay extra for the optional lab test.
Lab-certified results
ETR Laboratories
50+ substances, including lead, copper, arsenic, nitrate, hardness and coliform bacteria
Environmental Testing and Research Laboratories (ETR Labs), Leominster, MA · ISO/IEC 17025:2017, ANAB certificate AT-2638 · 2–4 business days after the lab receives it
What it can't tell you: It does not test PFAS, and not every result on the panel falls under the lab's accredited scope.
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Follow this water →Lake Shannon's phone number on EPA record is 815-365-2606. Its mailing address is 18530 WEST 3000 NORTH ROAD, LOT 305, REDDICK, IL 60961.
According to EPA's record, Lake Shannon uses surface water from its own intake.
EPA's record shows 4 health-based violations for Lake Shannon in the 10 years to July 9, 2026. No open health-based violations on EPA record in the last 10 years. The latest legal-limit breach on record was in the period starting July 2025. EPA also lists 11 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
Lead was not detected at the 90th percentile of tap samples in Lake Shannon's latest lead and copper round, which ended in December 2025. The federal action level is 15 µg/L.
PurityMap has no verified website for Lake Shannon. Its phone number on EPA record is 815-365-2606. Its mailing address on EPA record is 18530 WEST 3000 NORTH ROAD, LOT 305, REDDICK, IL 60961. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.