Home/ Directory/ WY/ Y-O INVESTMENTS, INC.

Water system · PWSID WY5600777

Y-O INVESTMENTS, INC.

JACKSON, WY · ~173 people served

Check your exact address → JACKSON overview
100
Excellent
PurityRadar safety score

PWSID

WY5600777

State

Wyoming

City

JACKSON

Population served

173

Primary source

Groundwater

Score history

No change since tracking began Jun 18, 2026.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 100

2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.

PFAS & contaminant readings

No PFAS detections are on record for this system from EPA’s UCMR5 monitoring (2023–25). Absence of a detection isn’t a guarantee — not every system was sampled, and this dataset doesn’t cover other contaminants.

Violations & enforcement

11

Violations on record

0

Unaddressed

2

Health-based

15

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jun 2017. Official EPA record →

Monitoring & reporting · EPA contaminant 4030 began Jul 2016 Resolved
Monitoring & reporting · Gross alpha began Jul 2016 Resolved
Monitoring & reporting · Combined radium-226/228 began Jul 2016 Resolved
Monitoring & reporting · Uranium began Jul 2016 Resolved
Monitoring & reporting · EPA contaminant 4020 began Jul 2016 Resolved
Monitoring & reporting · Total coliform began Sep 2015 Resolved
Monitoring & reporting · Total coliform began Aug 2015 Resolved
Max contaminant level (MCL) · Total coliform health-based began Aug 2009 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jul 2009 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2004 Resolved
Monitoring & reporting · Nitrate began Jan 2002 Resolved

Recent enforcement actions

  • State action · SOX Jun 2017
  • EPA/federal action · EF/ Jun 2016
  • State action · SIF Dec 2015
  • State action · SOX Nov 2015
  • State action · SOX Jun 2010
  • EPA/federal action · EOX Mar 2010
  • State action · SOX Sep 2009
  • EPA/federal action · EFH Aug 2009

This profile is built from EPA public records for system WY5600777 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.