Utility-reported hardness
Unavailable
Ask your provider or test your tap
Local water dashboard
Official source aggregationRegional hardness evidence, possible serving systems, EPA compliance history, and the measurements that are—and are not—available for Blaine County.
Your tap water
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 →At a glance
EPA quarter 2026Q2
Utility-reported hardness
Unavailable
Ask your provider or test your tap
All possible systems
No active flag
0 active health-based records
Measurements by utility
Each result belongs to a specific system.
Utility match
1 system
Serves 1,258 people system-wide
Match the name on your water bill
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.
OK2000608 · Groundwater · 1,258 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 →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.
EPA SDWIS Lead and Copper Rule samples
0% of the listed benchmark
Monitoring period: Jan 1, 2022 to Dec 31, 2024
EPA SDWIS Lead and Copper Rule samples
129% of the listed benchmark
Monitoring period: Jan 1, 1998 to Jun 30, 1998
| Rule | Status | Period |
|---|---|---|
| Consumer Confidence Rule | Unaddressed | Jul 1, 2025 |
| Chlorine | Resolved | Dec 1, 2024 to Dec 31, 2024 |
| Revised Total Coliform Rule | Resolved | Dec 1, 2024 to Dec 31, 2024 |
| LEAD AND COPPER RULE REVISIONS | Resolved | Oct 17, 2024 to Mar 31, 2026 |
| LEAD AND COPPER RULE REVISIONSHealth-based | Resolved | Oct 17, 2024 to Mar 31, 2026 |
| BHC-GAMMA | Resolved | Oct 1, 2024 to Dec 31, 2024 |
| Glyphosate | Resolved | Oct 1, 2024 to Dec 31, 2024 |
| 2,4-D | Resolved | Oct 1, 2024 to Dec 31, 2024 |
| HEXACHLOROBENZENE | Resolved | Oct 1, 2024 to Dec 31, 2024 |
| Nitrate-Nitrite | Resolved | Jul 1, 2024 to Sep 30, 2024 |
| BHC-GAMMA | Resolved | Jul 1, 2024 to Sep 30, 2024 |
| HEXACHLOROBENZENE | Resolved | Jul 1, 2024 to Sep 30, 2024 |
| Glyphosate | Resolved | Apr 1, 2024 to Jun 30, 2024 |
| TTHM | Resolved | Jan 1, 2024 to Dec 31, 2024 |
| Consumer Confidence Rule | Resolved | Oct 2, 2023 to Jan 31, 2024 |
| HEXACHLOROBENZENE | Resolved | Oct 1, 2023 to Dec 31, 2023 |
| Chlorine | Resolved | Jul 1, 2023 to Sep 30, 2023 |
| Chlorine | Resolved | Jul 1, 2023 to Sep 30, 2023 |
| Chlorine | Resolved | Apr 1, 2023 to Jun 30, 2023 |
| Chlorine | Resolved | Jan 1, 2023 to Mar 31, 2023 |
| Nitrate-NitriteHealth-based | Resolved | Jan 1, 2023 to Mar 31, 2023 |
| Consumer Confidence Rule | Resolved | Oct 2, 2022 to Jan 31, 2023 |
| Nitrate-NitriteHealth-based | Resolved | Oct 1, 2022 to Dec 31, 2022 |
| Nitrate-NitriteHealth-based | Resolved | Jul 1, 2022 to Sep 30, 2022 |
| Nitrate-NitriteHealth-based | Resolved | Apr 1, 2022 to Jun 30, 2022 |
| Nitrate-NitriteHealth-based | Resolved | Jan 1, 2022 to Mar 31, 2022 |
| 1,2,4-Trichlorobenzene | Resolved | Jan 1, 2022 to Dec 31, 2022 |
| Xylenes, Total | Resolved | Jan 1, 2022 to Dec 31, 2022 |
| DICHLOROMETHANE | Resolved | Jan 1, 2022 to Dec 31, 2022 |
| o-Dichlorobenzene | Resolved | Jan 1, 2022 to Dec 31, 2022 |
| p-Dichlorobenzene | Resolved | Jan 1, 2022 to Dec 31, 2022 |
| 1,1-Dichloroethylene | Resolved | Jan 1, 2022 to Dec 31, 2022 |
| 1,2-Dichloropropane | Resolved | Jan 1, 2022 to Dec 31, 2022 |
| 1,1,2-Trichloroethane | Resolved | Jan 1, 2022 to Dec 31, 2022 |
| Tetrachloroethylene | Resolved | Jan 1, 2022 to Dec 31, 2022 |
| CHLOROBENZENE | Resolved | Jan 1, 2022 to Dec 31, 2022 |
| Ethylbenzene | Resolved | Jan 1, 2022 to Dec 31, 2022 |
| trans-1,2-Dichloroethylene | Resolved | Jan 1, 2022 to Dec 31, 2022 |
| Trichloroethylene | Resolved | Jan 1, 2022 to Dec 31, 2022 |
| Vinyl chloride | Resolved | Jan 1, 2022 to Dec 31, 2022 |
| Benzene | Resolved | Jan 1, 2022 to Dec 31, 2022 |
| 1,1,1-Trichloroethane | Resolved | Jan 1, 2022 to Dec 31, 2022 |
| Carbon tetrachloride | Resolved | Jan 1, 2022 to Dec 31, 2022 |
| 1,2-Dichloroethane | Resolved | Jan 1, 2022 to Dec 31, 2022 |
| cis-1,2-Dichloroethylene | Resolved | Jan 1, 2022 to Dec 31, 2022 |
| Styrene | Resolved | Jan 1, 2022 to Dec 31, 2022 |
| Toluene | Resolved | Jan 1, 2022 to Dec 31, 2022 |
| Revised Total Coliform Rule | Resolved | Nov 1, 2021 to Nov 30, 2021 |
| Chlorine | Resolved | Oct 1, 2021 to Dec 8, 2021 |
| Revised Total Coliform Rule | Resolved | Oct 1, 2021 to Oct 31, 2021 |
| Chlorine | Resolved | Oct 1, 2021 to Dec 31, 2021 |
| Chlorine | Resolved | Oct 1, 2021 to Dec 31, 2021 |
| Nitrate-NitriteHealth-based | Resolved | Oct 1, 2021 to Dec 31, 2021 |
| Chlorine | Resolved | Jul 1, 2021 to Sep 30, 2021 |
| Chlorine | Resolved | Jul 1, 2021 to Sep 30, 2021 |
| Nitrate-NitriteHealth-based | Resolved | Jul 1, 2021 to Sep 30, 2021 |
| Nitrate-NitriteHealth-based | Resolved | Apr 1, 2021 to Jun 30, 2021 |
| Chlorine | Resolved | Apr 1, 2021 to Jun 30, 2021 |
| Nitrate-Nitrite | Resolved | Jan 1, 2021 to Mar 31, 2021 |
| 1,2,4-Trichlorobenzene | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| cis-1,2-Dichloroethylene | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| Xylenes, Total | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| p-Dichlorobenzene | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| 1,2-Dichloroethane | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| 1,1,1-Trichloroethane | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| Carbon tetrachloride | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| 1,2-Dichloropropane | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| 1,1,2-Trichloroethane | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| Ethylbenzene | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| Benzene | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| Styrene | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| Vinyl chloride | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| CHLOROBENZENE | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| Toluene | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| trans-1,2-Dichloroethylene | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| 1,1-Dichloroethylene | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| Trichloroethylene | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| Tetrachloroethylene | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| Nitrate-Nitrite | Resolved | Jan 1, 2021 to Mar 31, 2021 |
| DICHLOROMETHANE | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| o-Dichlorobenzene | Resolved | Jan 1, 2021 to Dec 31, 2021 |
Hardness meter
610
PPM as CaCO₃
Very Hard
PPM
610
GPG
35.7
Regional environmental evidence
USGS hardness classification scale
610 PPM
Parts per million
610
mg/L as CaCO₃ equivalent
Grains per gallon
35.7
1 GPG ≈ 17.1 PPM
How to use regional evidence
These samples describe nearby environmental water. They cannot establish whether your tap water is soft or hard. Use a utility result or a tap test for appliance settings and treatment sizing.
USGS sites used
1
Nearest site
22.7 mi
Observation range
Aug 14, 2018–Aug 14, 2018
Regional evidence confidence
Low
Median of the latest source-type-aligned hardness observation at each monitoring site within 25 miles. Nearest monitoring location: 13N-07W-19 ADD 2 (Well).USGS source documentation ↗Evidence tier: Regional environmental evidence. This value is not used as proof of the serving utility's treated-water hardness.
Regional context
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Geary median
610 PPM
About the same1 indexed ZIP readings · Range 610–610 PPM
Oklahoma median
293 PPM
317 PPM higher47 indexed ZIP readings · Range 7–1700 PPM
Evidence-first next steps
This profile can help you ask the right question. It cannot select equipment for a property without a current result from the serving utility or the tap.
ZIP boundaries and utility service areas do not perfectly match. Verify the system on a water bill before relying on system-wide records.
A reported action-level record needs context. Check its monitoring period and the utility's current report.
Find an official utility report →Use a tap hardness test before sizing a softener. For health concerns, use a certified laboratory and the correct sampling protocol.
Convert your hardness test result →Frequently asked
EPA ECHO shows no active health-based violation for the associated systems in this reporting snapshot. This does not prove every contaminant is absent; federal records can lag and household plumbing can change tap conditions.
Utility-reported hardness is unavailable in this index. Regional samples do not establish tap-water hardness. Ask your provider or test your tap.
Confirm hardness at your tap and consider actual scale or spotting before choosing treatment. Regional environmental values cannot determine whether you need a softener. A softener addresses hardness, not every contaminant.