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City water profile

Marbleton water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Marbleton, Wyoming.

Median indexed hardness

103PPM

One indexed ZIP

Range 103–103 PPM

State comparison
132 PPM below
State hardness rank
#81 of 86
Matched utilities
1
Active health records
1

City summary

What the indexed records say

Marbleton has 1 published ZIP profile across Sublette County. The indexed median is 103 PPM, compared with 235 PPM across Wyoming.

Among the 86 Wyomingcities with an indexed median, Marbleton ranks #81from highest to lowest. Across all 97 state ZIP profiles, available estimates run from 3.2to 1905 PPM.

Because only one ZIP is represented, the city median and range are the same local estimate. It should not be read as multiple independent samples across the community.

Hardness distribution

How local ZIP estimates compare

Soft0 ZIPs
Moderately hard1 ZIP
Hard0 ZIPs
Very hard0 ZIPs

1 of 1 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance
8.9 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 1Low: 0

Observation window: Jun 22, 2016 to Nov 13, 2019.

ZIP directory

Water reports in Marbleton

Open a ZIP for site-level provenance and measurements.

ZIP code

83113

Moderately Hard

103 PPM

Nearest site
8.9 mi
Confidence
Moderate

View full ZIP evidence →

Public water systems

Utilities associated with this city

Marbleton, Town Of

PWSID WY5600223

Groundwater
System population served
861
Last reported
Jun 29, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Compliance history

What EPA records show

1 unique active health-based record appears among associated systems. This does not mean every contaminant was tested at every tap.

RecordSystemPeriodStatus
Nitrate-NitriteWY5600223Jan 1, 2025Archived
Groundwater RuleWY5600223Oct 17, 2024Unaddressed · health-based
Nitrate-NitriteWY5600223Jan 1, 2024Resolved
Lead and Copper RuleWY5600223Oct 1, 2022Resolved

Practical next steps

Move from index to evidence

  1. 1. Open your ZIP. Check distance, dates, confidence, and the associated utility.
  2. 2. Read the current CCR. Confirm source water, detections, limits, ranges, and notices.
  3. 3. Test the tap when needed. Confirm health concerns or treatment sizing with the right method.

Questions people ask

About water in Marbleton

Is the water hard?

The indexed city median is 103 PPM. Open the ZIP report to verify the distance and confidence behind that estimate.

Is the tap water safe?

Compliance history is utility-wide and cannot guarantee conditions at every tap. Check current notices and test when address-specific evidence is needed.

Do I need treatment?

Choose treatment only after confirming the problem at the property. A softener targets hardness; contaminant treatment requires a matching, verified performance claim.