City water profile

Water hardness in Kingfisher

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

Utility-reported hardness

Not yet available

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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.

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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.

Kingfisher

OK2003702 · Groundwater · 5,073 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 (3)

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, 2022 to Dec 31, 2024

Copper (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Above action level

Reported level: 1.41 mg/L
Action level: 1.3 mg/L

108% of the listed benchmark

Monitoring period: Jul 1, 1992 to Dec 31, 1992

TTHM

EPA SDWIS reported health-based violation

Reported violation

Reported level: 0.082 MG/L
Maximum contaminant level: 0.08 MG/L

102% of the listed benchmark

Monitoring period: Oct 1, 2025 to Dec 31, 2025

Violation history (186)

Imported violation history for Kingfisher
Rule	Status	Period
TTHMHealth-based	Archived	Oct 1, 2025 to Dec 31, 2025
TTHMHealth-based	Archived	Jul 1, 2025 to Sep 30, 2025
TTHMHealth-based	Archived	Jul 1, 2025 to Sep 30, 2025
TTHMHealth-based	Archived	Apr 1, 2025 to Jun 30, 2025
TTHMHealth-based	Archived	Apr 1, 2025 to Jun 30, 2025
Total Haloacetic Acids (HAA5)	Archived	Apr 1, 2025 to Jun 30, 2025
TTHMHealth-based	Archived	Jan 1, 2025 to Mar 31, 2025
ETHYLENE DIBROMIDE	Resolved	Jan 1, 2025 to Mar 31, 2025
1,2-DIBROMO-3-CHLOROPROPANE	Resolved	Jan 1, 2025 to Mar 31, 2025
TTHM	Resolved	Dec 30, 2024 to Apr 28, 2025
LEAD AND COPPER RULE REVISIONSHealth-based	Resolved	Oct 17, 2024 to Mar 26, 2026
LEAD AND COPPER RULE REVISIONS	Resolved	Oct 17, 2024 to Mar 26, 2026
TTHMHealth-based	Archived	Oct 1, 2024 to Dec 31, 2024
TTHMHealth-based	Archived	Oct 1, 2024 to Dec 31, 2024
Endrin	Resolved	Oct 1, 2024 to Dec 31, 2024
Methoxychlor	Resolved	Oct 1, 2024 to Dec 31, 2024
Hexachlorocyclopentadiene	Resolved	Oct 1, 2024 to Dec 31, 2024
HEXACHLOROBENZENE	Resolved	Oct 1, 2024 to Dec 31, 2024
BHC-GAMMA	Resolved	Oct 1, 2024 to Dec 31, 2024
Heptachlor	Resolved	Oct 1, 2024 to Dec 31, 2024
Heptachlor epoxide	Resolved	Oct 1, 2024 to Dec 31, 2024
TTHMHealth-based	Archived	Jul 1, 2024 to Sep 30, 2024
TTHMHealth-based	Archived	Jul 1, 2024 to Sep 30, 2024
Methoxychlor	Resolved	Jul 1, 2024 to Sep 30, 2024
Diquat	Resolved	Jul 1, 2024 to Sep 30, 2024
Endothall	Resolved	Jul 1, 2024 to Sep 30, 2024
Glyphosate	Resolved	Jul 1, 2024 to Sep 30, 2024
OXAMYL	Resolved	Jul 1, 2024 to Sep 30, 2024
Simazine	Resolved	Jul 1, 2024 to Sep 30, 2024
Di(2-ethylhexyl) phthalate	Resolved	Jul 1, 2024 to Sep 30, 2024
Dinoseb	Resolved	Jul 1, 2024 to Sep 30, 2024
Carbofuran	Resolved	Jul 1, 2024 to Sep 30, 2024
Atrazine	Resolved	Jul 1, 2024 to Sep 30, 2024
LASSO	Resolved	Jul 1, 2024 to Sep 30, 2024
Heptachlor epoxide	Resolved	Jul 1, 2024 to Sep 30, 2024
2,4-D	Resolved	Jul 1, 2024 to Sep 30, 2024
2,4,5-TP	Resolved	Jul 1, 2024 to Sep 30, 2024
Benzo(a)pyrene	Resolved	Jul 1, 2024 to Sep 30, 2024
Pentachlorophenol	Resolved	Jul 1, 2024 to Sep 30, 2024
1,2-DIBROMO-3-CHLOROPROPANE	Resolved	Jul 1, 2024 to Sep 30, 2024
Chlordane	Resolved	Jul 1, 2024 to Sep 30, 2024
ETHYLENE DIBROMIDE	Resolved	Jul 1, 2024 to Sep 30, 2024
Toxaphene	Resolved	Jul 1, 2024 to Sep 30, 2024
Hexachlorocyclopentadiene	Resolved	Jul 1, 2024 to Sep 30, 2024
Picloram	Resolved	Jul 1, 2024 to Sep 30, 2024
BHC-GAMMA	Resolved	Jul 1, 2024 to Sep 30, 2024
Heptachlor	Resolved	Jul 1, 2024 to Sep 30, 2024
HEXACHLOROBENZENE	Resolved	Jul 1, 2024 to Sep 30, 2024
Dalapon	Resolved	Jul 1, 2024 to Sep 30, 2024
Total Polychlorinated Biphenyls (PCB)	Resolved	Jul 1, 2024 to Sep 30, 2024
Endrin	Resolved	Jul 1, 2024 to Sep 30, 2024
Di(2-ethylhexyl) adipate	Resolved	Jul 1, 2024 to Sep 30, 2024
TTHM	Resolved	Jun 30, 2024 to Apr 28, 2025
TTHMHealth-based	Archived	Apr 1, 2024 to Jun 30, 2024
TTHMHealth-based	Archived	Apr 1, 2024 to Jun 30, 2024
Total Haloacetic Acids (HAA5)	Resolved	Feb 29, 2024 to May 31, 2024
TTHM	Resolved	Feb 29, 2024 to May 31, 2024
TTHMHealth-based	Archived	Jan 1, 2024 to Mar 31, 2024
Endrin	Resolved	Jan 1, 2024 to Mar 31, 2024
BHC-GAMMA	Resolved	Jan 1, 2024 to Mar 31, 2024
Methoxychlor	Resolved	Jan 1, 2024 to Mar 31, 2024
Heptachlor epoxide	Resolved	Jan 1, 2024 to Mar 31, 2024
HEXACHLOROBENZENE	Resolved	Jan 1, 2024 to Mar 31, 2024
TTHMHealth-based	Archived	Jan 1, 2024 to Mar 31, 2024
Heptachlor	Resolved	Jan 1, 2024 to Mar 31, 2024
Endrin	Resolved	Oct 1, 2022 to Dec 31, 2022
Methoxychlor	Resolved	Oct 1, 2022 to Dec 31, 2022
Dalapon	Resolved	Oct 1, 2022 to Dec 31, 2022
Diquat	Resolved	Oct 1, 2022 to Dec 31, 2022
Endothall	Resolved	Oct 1, 2022 to Dec 31, 2022
Glyphosate	Resolved	Oct 1, 2022 to Dec 31, 2022
Di(2-ethylhexyl) adipate	Resolved	Oct 1, 2022 to Dec 31, 2022
OXAMYL	Resolved	Oct 1, 2022 to Dec 31, 2022
Hexachlorocyclopentadiene	Resolved	Oct 1, 2022 to Dec 31, 2022
Carbofuran	Resolved	Oct 1, 2022 to Dec 31, 2022
Atrazine	Resolved	Oct 1, 2022 to Dec 31, 2022
Heptachlor	Resolved	Oct 1, 2022 to Dec 31, 2022
2,4-D	Resolved	Oct 1, 2022 to Dec 31, 2022
HEXACHLOROBENZENE	Resolved	Oct 1, 2022 to Dec 31, 2022
Total Polychlorinated Biphenyls (PCB)	Resolved	Oct 1, 2022 to Dec 31, 2022
1,2-DIBROMO-3-CHLOROPROPANE	Resolved	Oct 1, 2022 to Dec 31, 2022
Di(2-ethylhexyl) phthalate	Resolved	Oct 1, 2022 to Dec 31, 2022
ETHYLENE DIBROMIDE	Resolved	Oct 1, 2022 to Dec 31, 2022
Picloram	Resolved	Oct 1, 2022 to Dec 31, 2022
LASSO	Resolved	Oct 1, 2022 to Dec 31, 2022
Dinoseb	Resolved	Oct 1, 2022 to Dec 31, 2022
Heptachlor epoxide	Resolved	Oct 1, 2022 to Dec 31, 2022
Chlordane	Resolved	Oct 1, 2022 to Dec 31, 2022
Pentachlorophenol	Resolved	Oct 1, 2022 to Dec 31, 2022
BHC-GAMMA	Resolved	Oct 1, 2022 to Dec 31, 2022
Simazine	Resolved	Oct 1, 2022 to Dec 31, 2022
Benzo(a)pyrene	Resolved	Oct 1, 2022 to Dec 31, 2022
2,4,5-TP	Resolved	Oct 1, 2022 to Dec 31, 2022
Toxaphene	Resolved	Oct 1, 2022 to Dec 31, 2022
BHC-GAMMA	Resolved	Jul 1, 2022 to Sep 30, 2022
Methoxychlor	Resolved	Jul 1, 2022 to Sep 30, 2022
Toxaphene	Resolved	Jul 1, 2022 to Sep 30, 2022
Endothall	Resolved	Jul 1, 2022 to Sep 30, 2022
Glyphosate	Resolved	Jul 1, 2022 to Sep 30, 2022
Di(2-ethylhexyl) phthalate	Resolved	Jul 1, 2022 to Sep 30, 2022
Picloram	Resolved	Jul 1, 2022 to Sep 30, 2022
Hexachlorocyclopentadiene	Resolved	Jul 1, 2022 to Sep 30, 2022
LASSO	Resolved	Jul 1, 2022 to Sep 30, 2022
Heptachlor	Resolved	Jul 1, 2022 to Sep 30, 2022
Heptachlor epoxide	Resolved	Jul 1, 2022 to Sep 30, 2022
2,4-D	Resolved	Jul 1, 2022 to Sep 30, 2022
2,4,5-TP	Resolved	Jul 1, 2022 to Sep 30, 2022
HEXACHLOROBENZENE	Resolved	Jul 1, 2022 to Sep 30, 2022
Total Polychlorinated Biphenyls (PCB)	Resolved	Jul 1, 2022 to Sep 30, 2022
1,2-DIBROMO-3-CHLOROPROPANE	Resolved	Jul 1, 2022 to Sep 30, 2022
Chlordane	Resolved	Jul 1, 2022 to Sep 30, 2022
Pentachlorophenol	Resolved	Jul 1, 2022 to Sep 30, 2022
Dinoseb	Resolved	Jul 1, 2022 to Sep 30, 2022
Atrazine	Resolved	Jul 1, 2022 to Sep 30, 2022
Benzo(a)pyrene	Resolved	Jul 1, 2022 to Sep 30, 2022
Endrin	Resolved	Jul 1, 2022 to Sep 30, 2022
Diquat	Resolved	Jul 1, 2022 to Sep 30, 2022
Dalapon	Resolved	Jul 1, 2022 to Sep 30, 2022
Simazine	Resolved	Jul 1, 2022 to Sep 30, 2022
Di(2-ethylhexyl) adipate	Resolved	Jul 1, 2022 to Sep 30, 2022
Carbofuran	Resolved	Jul 1, 2022 to Sep 30, 2022
ETHYLENE DIBROMIDE	Resolved	Jul 1, 2022 to Sep 30, 2022
OXAMYL	Resolved	Jul 1, 2022 to Sep 30, 2022
BHC-GAMMA	Resolved	Apr 1, 2022 to Jun 30, 2022
Methoxychlor	Resolved	Apr 1, 2022 to Jun 30, 2022
Toxaphene	Resolved	Apr 1, 2022 to Jun 30, 2022
Dalapon	Resolved	Apr 1, 2022 to Jun 30, 2022
Diquat	Resolved	Apr 1, 2022 to Jun 30, 2022
Endothall	Resolved	Apr 1, 2022 to Jun 30, 2022
Di(2-ethylhexyl) phthalate	Resolved	Apr 1, 2022 to Jun 30, 2022
Dinoseb	Resolved	Apr 1, 2022 to Jun 30, 2022
Hexachlorocyclopentadiene	Resolved	Apr 1, 2022 to Jun 30, 2022
Carbofuran	Resolved	Apr 1, 2022 to Jun 30, 2022
Heptachlor	Resolved	Apr 1, 2022 to Jun 30, 2022
Heptachlor epoxide	Resolved	Apr 1, 2022 to Jun 30, 2022
2,4-D	Resolved	Apr 1, 2022 to Jun 30, 2022
HEXACHLOROBENZENE	Resolved	Apr 1, 2022 to Jun 30, 2022
Benzo(a)pyrene	Resolved	Apr 1, 2022 to Jun 30, 2022
ETHYLENE DIBROMIDE	Resolved	Apr 1, 2022 to Jun 30, 2022
Chlordane	Resolved	Apr 1, 2022 to Jun 30, 2022
2,4,5-TP	Resolved	Apr 1, 2022 to Jun 30, 2022
Picloram	Resolved	Apr 1, 2022 to Jun 30, 2022
Simazine	Resolved	Apr 1, 2022 to Jun 30, 2022
LASSO	Resolved	Apr 1, 2022 to Jun 30, 2022
1,2-DIBROMO-3-CHLOROPROPANE	Resolved	Apr 1, 2022 to Jun 30, 2022
Pentachlorophenol	Resolved	Apr 1, 2022 to Jun 30, 2022
Glyphosate	Resolved	Apr 1, 2022 to Jun 30, 2022
OXAMYL	Resolved	Apr 1, 2022 to Jun 30, 2022
Total Polychlorinated Biphenyls (PCB)	Resolved	Apr 1, 2022 to Jun 30, 2022
Di(2-ethylhexyl) adipate	Resolved	Apr 1, 2022 to Jun 30, 2022
Endrin	Resolved	Apr 1, 2022 to Jun 30, 2022
Atrazine	Resolved	Apr 1, 2022 to Jun 30, 2022
Endrin	Resolved	Jan 1, 2022 to Mar 31, 2022
BHC-GAMMA	Resolved	Jan 1, 2022 to Mar 31, 2022
Methoxychlor	Resolved	Jan 1, 2022 to Mar 31, 2022
Endothall	Resolved	Jan 1, 2022 to Mar 31, 2022
Di(2-ethylhexyl) adipate	Resolved	Jan 1, 2022 to Mar 31, 2022
OXAMYL	Resolved	Jan 1, 2022 to Mar 31, 2022
Simazine	Resolved	Jan 1, 2022 to Mar 31, 2022
Di(2-ethylhexyl) phthalate	Resolved	Jan 1, 2022 to Mar 31, 2022
Dinoseb	Resolved	Jan 1, 2022 to Mar 31, 2022
Hexachlorocyclopentadiene	Resolved	Jan 1, 2022 to Mar 31, 2022
Atrazine	Resolved	Jan 1, 2022 to Mar 31, 2022
LASSO	Resolved	Jan 1, 2022 to Mar 31, 2022
2,4-D	Resolved	Jan 1, 2022 to Mar 31, 2022
HEXACHLOROBENZENE	Resolved	Jan 1, 2022 to Mar 31, 2022
Pentachlorophenol	Resolved	Jan 1, 2022 to Mar 31, 2022
1,2-DIBROMO-3-CHLOROPROPANE	Resolved	Jan 1, 2022 to Mar 31, 2022
Carbofuran	Resolved	Jan 1, 2022 to Mar 31, 2022
ETHYLENE DIBROMIDE	Resolved	Jan 1, 2022 to Mar 31, 2022
Glyphosate	Resolved	Jan 1, 2022 to Mar 31, 2022
Benzo(a)pyrene	Resolved	Jan 1, 2022 to Mar 31, 2022
Heptachlor epoxide	Resolved	Jan 1, 2022 to Mar 31, 2022
2,4,5-TP	Resolved	Jan 1, 2022 to Mar 31, 2022
Toxaphene	Resolved	Jan 1, 2022 to Mar 31, 2022
Chlordane	Resolved	Jan 1, 2022 to Mar 31, 2022
Picloram	Resolved	Jan 1, 2022 to Mar 31, 2022
Dalapon	Resolved	Jan 1, 2022 to Mar 31, 2022
Diquat	Resolved	Jan 1, 2022 to Mar 31, 2022
Heptachlor	Resolved	Jan 1, 2022 to Mar 31, 2022
Total Polychlorinated Biphenyls (PCB)	Resolved	Jan 1, 2022 to Mar 31, 2022
TTHMHealth-based	Archived	Apr 1, 2021 to Jun 30, 2021
TTHMHealth-based	Archived	Apr 1, 2021 to Jun 30, 2021
TTHM	Resolved	Apr 1, 2021 to Apr 14, 2021
TTHMHealth-based	Archived	Jan 1, 2021 to Mar 31, 2021
TTHMHealth-based	Archived	Jan 1, 2021 to Mar 31, 2021

City summary

What the indexed records say

Kingfisher has 1 published ZIP profile across Kingfisher County. The regional-evidence median is 610 PPM. The city does not meet the stricter comparison standard.

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. At least one estimate is marked low confidence, so observation distance and date deserve extra attention.

Hardness distribution

How local ZIP estimates compare

Soft0 ZIPs

Moderately hard0 ZIPs

Hard0 ZIPs

Very hard1 ZIP

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: 18.4 miles
Profiles with evidence: 1/1

Confidence labels

High: 0Moderate: 0Low: 1

Observation window: Aug 14, 2018 to Aug 14, 2018.

ZIP directory

Water reports in Kingfisher

Open a ZIP for site-level provenance and measurements.

ZIP code

73750

Very Hard

610 PPM

Nearest site: 18.4 mi
Confidence: Low

View full ZIP evidence →

Practical next steps

Move from index to evidence

1. Open your ZIP. Check distance, dates, confidence, and the associated utility.
2. Read the current CCR. Confirm source water, detections, limits, ranges, and notices.
3. Use a measured hardness result. Confirm health concerns or treatment sizing with the right method.

Continue comparing

Other Oklahoma communities

Hennessey

Kingfisher County

— No median

Bethany

Oklahoma County

610 PPM median

Geary

Blaine County

610 PPM median

Hinton

Caddo County

610 PPM median

Minco

Grady County

610 PPM median

Grandfield

Tillman County

554 PPM median

Search all 108 Oklahoma cities →

Questions people ask

About water in Kingfisher

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.