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Water utility · Spokane County · Washington

Pioneer Water Company

No health-based violations on EPA record since 2016.

Serves about 443 people (165 connections) with groundwater from its own wells.

  • PWSID WA5324885
  • EPA registered name: PIONEER WATER COMPANY
  • EPA record checked June 19, 2026
Contact

Contact Pioneer Water Company

From EPA's record for WA5324885. PurityMap is independent of Pioneer Water Company.

Mailing address
PO Box 66
Marshall, WA 99020
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EPA compliance record

What EPA's record shows

No health-based violations in the last 10 years, from EPA's SDWIS compliance database.

  • Lead: the 90th-percentile result in the latest lead and copper round (the round ending December 31, 2023) was not detected. The federal action level is 15 µg/L, a trigger for more treatment steps, not a legal limit.
  • Missed or late tests or reports: 25 in 10 years.
  • EPA lists 8 enforcement actions in 10 years; the latest on February 17, 2026.

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.

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 Pioneer Water Company

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Where does Pioneer Water Company get its water?

According to EPA's record, Pioneer Water Company uses groundwater from its own wells.

Does Pioneer Water Company have any EPA violations?

No health-based violations on EPA record since 2016. EPA also lists 25 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.

What is Pioneer Water Company's latest lead result?

Lead was not detected at the 90th percentile of tap samples in Pioneer Water Company's latest lead and copper round, which ended in December 2023. The federal action level is 15 µg/L.

Who do I contact about my Pioneer Water Company water bill?

PurityMap has no verified website for Pioneer Water Company. Its mailing address on EPA record is PO Box 66, Marshall, WA 99020. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.