No health-based violations on EPA record since 2016.
Serves about 325 people (168 connections) with groundwater bought from Hardinville Water Company.
From EPA's record for IL0330050. PurityMap is independent of Flat Rock.
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No health-based violations in the last 10 years, from EPA's SDWIS compliance database.
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 →Flat Rock's phone number on EPA record is 812-830-9415. Its mailing address is 106 S Main St, P.O. Box 81, FLAT ROCK, IL 62427.
According to EPA's record, Flat Rock uses groundwater bought from Hardinville Water Company.
No health-based violations on EPA record since 2016. EPA also lists 4 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 Flat Rock'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 Flat Rock. Its phone number on EPA record is 812-830-9415. Its mailing address on EPA record is 106 S Main St, P.O. Box 81, FLAT ROCK, IL 62427. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.