Guymon Water Hardness & Quality Report (2026)
Water Hardness
20.5 grains per gallon
Source
reservoir
pH Level
8.5
neutral = 7.0
Lead
0.008 mg/L
✓ Below action level
TDS
896 mg/L
Est. Daily Cost
$0.94
energy & soap waste
Source: USGS Water Quality Portal · Updated 2026
0–60
mg/L
Soft
61–120
mg/L
Moderately Hard
121–180
mg/L
Hard
180+
mg/L
Very Hard
Appliance Damage Report
In Guymon, your appliances are currently losing 45% efficiency due to mineral buildup.
| Appliance | In Guymon | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 1.5 yrs | 8.5 yrs | -82% |
| Washing Machine | 3 yrs | 12 yrs | -75% |
| Water Heater | 5 yrs | 15 yrs | -67% |
Regional Water Comparison
How Guymon compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Guymon, Oklahoma | 351 mg/L | 6.1 ppt | 🔴 Very Hard | reservoir |
| Liberal, Kansas | 384.5 mg/L | 5.2 ppt | 🔴 Very Hard | groundwater |
| Dumas, Texas | 343.5 mg/L | 10.3 ppt | 🔴 Very Hard | mixed |
| Borger, Texas | 271.5 mg/L | 8.8 ppt | 🔴 Very Hard | mixed |
| Pampa, Texas | 295 mg/L | 9.3 ppt | 🔴 Very Hard | mixed |
National Benchmark
How Guymon compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Guymon | 351 mg/L | 🔴 High |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Guymon's Water Unique?
Local geology and source profile
Guymon, Oklahoma, in Texas County — the county seat of Texas County (Oklahoma's Panhandle), adjacent to Hooker and Goodwell in the Oklahoma High Plains — receives its water from the City of Guymon Water Department and the Panhandle Water Planning Authority, drawing from deep Ogallala Aquifer wells beneath the Oklahoma Panhandle through the northwest Oklahoma distribution.
The extremely hard 351 mg/L hardness and very high TDS of 896 mg/L reflect the Texas County Ogallala supply's extreme calcareous character — the Pliocene Ogallala Formation beneath the Panhandle is heavily cemented with calcareous caliche, and Permian-age Dog Creek Shale evaporites contribute additional sulfate and calcium to the deep groundwater (compare Hooker OK: 340/870 in Texas County comparable; Liberal KS: 360/920 in Seward County comparable; Guymon consistent extremely hard from the same Texas County Ogallala Panhandle caliche supply). The Ogallala Aquifer at Texas County — Pliocene Ogallala Formation (calcareous caliche — primary hardness contributor), Permian Dog Creek Shale (slightly calcareous — secondary contributor), and Quaternary eolian deposits (slightly calcareous — minor TDS).
At 351 mg/L with TDS 896, Guymon's water is extremely hard — a whole-house water softener is essential to protect plumbing and appliances. A reverse osmosis system is strongly recommended for drinking to reduce TDS. The PFAS level of 6.1 ppt is moderate — a certified filter provides added protection. Review the City of Guymon's annual water quality report.
Geology & Source: Guymon in Texas County draws from the City of Guymon Water on the Ogallala Aquifer (Texas County, northwest Oklahoma Panhandle) — the Llano Estacado at Texas County is developed in Pliocene Ogallala Formation (calcareous caliche) and Permian Dog Creek Shale (slightly calcareous) — Oklahoma Texas County Ogallala Aquifer caliche Panhandle supply produces extremely hard water at 351 mg/L with TDS 896 mg/L.