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City water profile

Water hardness in Piedmont

Find official utility reports, understand hardness, and check the water system serving your home in Piedmont, Oklahoma.

Utility-reported hardness

Not yet available

Check your provider and source →
State comparison
Unavailable
Evidence comparison rank
—
Matched utilities
1
Active health records
0

Your tap water

What does the utility report?

Match the utility name to your water bill. These results describe the utility’s water, not a test at your home. A ZIP can include several water systems.

Utility hardness unavailable in this index

Nearby river or groundwater samples cannot tell us the hardness coming out of your tap. Ask your water provider for total hardness as CaCO₃, or test it at home.

Find an official utility report →
Convert a hardness result →Test your tap →

Match the name on your water bill

Your utility’s measurements and compliance records

These are possible serving systems. A record for one system does not apply to every home in this ZIP. Confirm your provider before interpreting a measurement or notice. Federal records can lag current utility notices.

EPA snapshot: 2026Q2. Historical window begins Jan 1, 2021.

Piedmont Municipal Authority

OK2000909 · Surface water · 7,542 people served system-wide

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

No active health-based record in this imported snapshot

Find this utility’s official report →
Measurements (2)

An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.

Lead (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Below action level
Reported level
0 mg/L
Action level
0.015 mg/L

0% of the listed benchmark

Monitoring period: Jan 1, 2021 to Dec 31, 2023

Gross Alpha, Excl. Radon and U

EPA SDWIS reported health-based violation

Reported violation
Reported level
18 PCI/L
Maximum contaminant level
15 PCI/L

120% of the listed benchmark

Monitoring period: Jan 1, 2024 to Mar 31, 2024

Violation history (28)
Imported violation history for Piedmont Municipal Authority
RuleStatusPeriod
Gross Alpha, Excl. Radon and UArchivedJul 1, 2025 to Sep 30, 2025
Combined UraniumArchivedJul 1, 2025 to Sep 30, 2025
Combined Radium (-226 and -228)ArchivedJul 1, 2025 to Sep 30, 2025
Gross Beta Particle ActivityArchivedJul 1, 2025 to Sep 30, 2025
Gross Alpha, Excl. Radon and UArchivedApr 1, 2025 to Jun 30, 2025
Combined UraniumArchivedApr 1, 2025 to Jun 30, 2025
Combined Radium (-226 and -228)ArchivedApr 1, 2025 to Jun 30, 2025
Gross Beta Particle ActivityArchivedApr 1, 2025 to Jun 30, 2025
LEAD AND COPPER RULE REVISIONSHealth-basedResolvedOct 17, 2024 to Jul 15, 2025
LEAD AND COPPER RULE REVISIONSResolvedOct 17, 2024 to Jul 15, 2025
ChlorineResolvedAug 1, 2024 to Aug 31, 2024
Revised Total Coliform RuleResolvedAug 1, 2024 to Aug 31, 2024
GlyphosateResolvedJan 1, 2024 to Dec 31, 2024
2,4-DResolvedJan 1, 2024 to Dec 31, 2024
SimazineResolvedJan 1, 2024 to Dec 31, 2024
GlyphosateResolvedJan 1, 2024 to Dec 31, 2024
2,4-DResolvedJan 1, 2024 to Dec 31, 2024
Gross Alpha, Excl. Radon and UHealth-basedResolvedJan 1, 2024 to Mar 31, 2024
SimazineResolvedJan 1, 2024 to Dec 31, 2024
Revised Total Coliform RuleResolvedDec 1, 2023 to Dec 31, 2023
Gross Alpha, Excl. Radon and UHealth-basedResolvedOct 1, 2023 to Dec 31, 2023
ChlorineResolvedOct 1, 2023 to Dec 31, 2023
Gross Alpha, Excl. Radon and UHealth-basedResolvedJul 1, 2023 to Sep 30, 2023
TTHMResolvedJun 1, 2023 to May 31, 2024
Total Haloacetic Acids (HAA5)ResolvedJun 1, 2023 to May 31, 2024
GlyphosateResolvedJan 1, 2022 to Dec 31, 2022
SimazineResolvedJan 1, 2022 to Dec 31, 2022
SimazineResolvedJan 1, 2022 to Dec 31, 2022

City summary

What the indexed records say

Piedmont has 2 published ZIP profiles across Canadian County. The regional-evidence median is 394 PPM. The city does not meet the stricter comparison standard.

The 389–398 PPM range shows how much the available ZIP estimates vary within the city label.

Hardness distribution

How local ZIP estimates compare

Soft0 ZIPs
Moderately hard0 ZIPs
Hard0 ZIPs
Very hard2 ZIPs

2 of 2 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance
12.2 miles
Profiles with evidence
2/2

Confidence labels

High: 0Moderate: 2Low: 0

Observation window: May 13, 2026 to May 21, 2026.

ZIP directory

Water reports in Piedmont

Open a ZIP for site-level provenance and measurements.

ZIP code

73078

Very Hard

389 PPM

Nearest site
12.2 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

73762

Very Hard

398 PPM

Nearest site
8.4 mi
Confidence
Moderate

View full ZIP evidence →

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. Use a measured hardness result. Confirm health concerns or treatment sizing with the right method.

Questions people ask

About water in Piedmont

Is the water hard?

Check the utility-reported result above when available. Nearby environmental samples cannot establish tap-water hardness. Ask your provider or test your tap.

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.