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City water profile

Tishomingo water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Tishomingo, Oklahoma.

Median indexed hardness

106PPM

One indexed ZIP

Range 105.5–105.5 PPM

State comparison
120 PPM below
State hardness rank
#95 of 108
Matched utilities
1
Active health records
0

City summary

What the indexed records say

Tishomingo has 1 published ZIP profile across Johnston County. The indexed median is 106 PPM, compared with 226 PPM across Oklahoma.

Among the 108 Oklahomacities with an indexed median, Tishomingo ranks #95from highest to lowest. Across all 148 state ZIP profiles, available estimates run from 7to 610 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
20.6 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 1Low: 0

Observation window: Apr 4, 2016 to May 20, 2026.

ZIP directory

Water reports in Tishomingo

Open a ZIP for site-level provenance and measurements.

ZIP code

73460

Moderately Hard

105.5 PPM

Nearest site
20.6 mi
Confidence
Moderate

View full ZIP evidence →

Public water systems

Utilities associated with this city

Tishomingo Municipal Authority

PWSID OK1010815

Surface water
System population served
3,000
Last reported
May 13, 2026

A municipal system, in-state city, and served county all agree with this Census ZCTA.

Compliance history

What EPA records show

No active health-based violation appears among the associated systems in the represented EPA reporting quarter. This does not mean every contaminant was tested at every tap.

RecordSystemPeriodStatus
ChlorineOK1010815Nov 1, 2025Resolved
Revised Total Coliform RuleOK1010815Nov 1, 2025Resolved
Consumer Confidence RuleOK1010815Jul 1, 2025Resolved
Interim Enhanced Surface Water Treatment RuleOK1010815Jun 1, 2025Resolved
Long Term 2 Enhanced Surface Water Treatment RuleOK1010815Mar 1, 2025Archived · health-based
Lead and Copper RuleOK1010815Jan 1, 2025Resolved
Long Term 2 Enhanced Surface Water Treatment RuleOK1010815Jan 1, 2025Archived · health-based
Surface Water Treatment RuleOK1010815Jan 1, 2025Archived · health-based
Surface Water Treatment RuleOK1010815Jan 1, 2025Archived · health-based
Long Term 2 Enhanced Surface Water Treatment RuleOK1010815Nov 1, 2024Archived · health-based

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 Tishomingo

Is the water hard?

The indexed city median is 106 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.