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Water utility · serves St Charles County Pwsd · Missouri

St. Charles County PWSD 2

No open EPA violations as of 2026-09-16.

EPA record checked 2026-10-06

Contact and official links

Contact St. Charles County PWSD 2

From EPA's record for MO6024530. PurityMap is independent of St. Charles County PWSD 2.

Mailing address
100 WATER DR
O'FALLON, MO 63368-0000
Directions ↗
Phone and website636-385-5197

Your water bill lists how to pay and how to start or stop service.

Annual water quality reportNot in our sources yet

Every community water system publishes one each year. Your water bill or the utility's website links to it.

Where it delivers water

As listed in EPA's records. Your water bill names your supplier.

Are you this utility? Correct this listing →

Test results

No result on record is above a federal legal limit

31 results are on record. These 5 come first: results above a listed reference.

All 31 results and evidence →
  • LithiumAbove the referenced health-based guidance value
    10 µg/L EPA health reference level · not a legal limit
    47.5µg/L
  • Perfluorobutanoic acid (PFBA)Detected, no limit
    No federal limit
    6.5ng/L
  • 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)Not detected above the reporting limit
    No federal limit
    Not detected
  • 1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS)Not detected above the reporting limit
    No federal limit
    Not detected
  • 1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS)Not detected above the reporting limit
    No federal limit
    Not detected
EPA violations and monitoring

0health-based violations in the last 10 years · none open as of 2026-09-16

From EPA SDWIS. A clean violation history means no enforcement action was recorded; it does not cover contaminants without a limit. Meeting a federal limit is a compliance fact, not a health clearance.

Sources behind this page
  • UCMR5 Analytical Results: ST CHARLES COUNTY PWSD 2 (MO6024530)US EPA · published 2026-01-15
    View ↗
  • Lead & Copper Rule 90th-percentile: ST CHARLES COUNTY PWSD 2 (MO6024530)US EPA SDWIS · published 2026-07-09
    View ↗
Commercial · test your own tap

The system record stops at your property line

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 DIY Lead in Drinking Water Combo Test Kit

    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.

Questions

About St. Charles County PWSD 2

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How do I contact St. Charles County PWSD 2?

Its phone number on EPA record is 636-385-5197 and its mailing address is 100 WATER DR, O'FALLON, MO 63368-0000. These details come from the system's EPA record.

How do I pay my St. Charles County PWSD 2 bill?

PurityMap has no verified website for St. Charles County PWSD 2. Its mailing address on EPA record is 100 WATER DR, O'FALLON, MO 63368-0000. Your water bill lists the ways to pay. PurityMap does not take payments.

Which cities does St. Charles County PWSD 2 serve?

EPA's records list St. Charles County PWSD 2 as serving St Charles County Pwsd, Missouri. Your water bill names your supplier.

Has St. Charles County PWSD 2 tested for PFAS?

PurityMap's record for St. Charles County PWSD 2 holds results for 29 PFAS substances. 1 was detected, and none is above a federal legal limit. Each result links to its source in the city report.

Does St. Charles County PWSD 2 have any EPA violations?

No open EPA violations as of 2026-09-16: that is what EPA's record shows for St. Charles County PWSD 2. The record comes from EPA's SDWIS compliance database.

Where does St. Charles County PWSD 2 get its water?

St. Charles County PWSD 2 is on EPA record as drawing from surface water.