Grayson Tap Water Quality Report
Grayson's water has 3 contaminants above EPA MCLGs and 1 above EPA's legal limit (MCL). We recommend using a certified water filter.
Water system
OKMULGEE CO. RWD #4
People Served
1,913
Health-based violations since 2020
34
OKMULGEE CO. RWD #4. EPA SDWA violation data as of Q2 2026 (downloaded 2026-07-09).
Latest sample on file
Jul 2022 · OKMULGEE CO. RWD #4
Utilities publish newer results in their annual water quality report (Consumer Confidence Report).
Is Grayson Tap Water Safe to Drink?
We strongly recommend using a certified water filter to reduce exposure: Grayson's water has 4 contaminants above EPA health-based guidelines. Check our filter recommendations below for NSF-certified options that can remove the specific contaminants found in Grayson's water.
OKMULGEE CO. RWD #4, Grayson's water system, serves 1,913 people. Water quality testing is conducted regularly and reported to the EPA. The latest sample on file for OKMULGEE CO. RWD #4 is from Jul 2022.
Boil water advisories are issued by water systems and state agencies, and they change from day to day. Boil water advisories in Oklahoma
Grayson Water Service Areas
What these numbers actually mean for Grayson, OK
We read Grayson, OK’s published record and send you a short report — which findings warrant a decision, which to ignore, and what to do about it. Including when the answer is nothing.
- 3 contaminants above EPA MCLGs and 1 above EPA's legal limit (MCL) and 2 contaminants with an EPA health goal detected in some samples (no level on file)
- 13 results on file
- No PFAS results on record
Buying a home here? Property Water Report — $49 Emailed within one business day.
Fluoride in Grayson's water
OKMULGEE CO. RWD #4
PWSID OK3005602
No fluoride level in our data for OKMULGEE CO. RWD #4. Your utility's annual water quality report (CCR) lists it.
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Recommended Water Filters for Grayson
Based on Grayson's water quality data, these NSF-certified filters are recommended to remove contaminants above EPA's health goals (MCLGs) or legal limits (MCL).
AquaTru
Classic
NSF Certified:
Flow Rate
0.04 gpm
Daily Production
600 gpd
Highlights:
- Best overall contaminant reduction score
- Most performance certifications
- Lifetime warranty
- NSF-42, NSF-53, NSF-58, NSF-401 certified
Removes 23 contaminants:
+18 more
Molybdenum, Barium, Chlorine, Arsenic, 83+ contaminants, Calcium, Chloride, Copper, Magnesium, Nitrate, Phosphorus, Sodium, Sulfate, Total Dissolved Solids, Zinc, Total THMs, Chloroform, Nitrate (as N)
AquaTru
Carafe
NSF Certified:
Flow Rate
0.3 gpm
Daily Production
4 gpd
Highlights:
- Verified PFAS reduction
- Glass collection vessel
- Plug-and-play installation
- NSF-53, NSF-42, NSF-58, NSF-401, NSF-372 certified
Removes 17 contaminants:
+12 more
Arsenic, 83+ contaminants, Copper, Total THMs, Chloroform, Chloride, Sulfate, Nitrate (as N), Molybdenum, Barium, Strontium, Uranium
Culligan
ZeroWater
NSF Certified:
Flow Rate
1.9 gpm
Daily Production
1 gpd
Highlights:
- Compact design
- Easy to set up
- Affordable
- NSF-42, NSF-53, NSF-401 certified
Removes 19 contaminants:
+14 more
Strontium, Molybdenum, Fluoride, Uranium, Lead, Total PFAS, Chlorine, 25, Phosphorus, Bicarbonate, Calcium, Carbonate, Magnesium, Sodium
Santevia
Bath Filter
NSF Certified:
Flow Rate
0.36 gpm
Highlights:
- Organic cotton design reduces plastic used in construction
- Affordable upfront & ongoing cost
- The only bath filter that removed 100% chlorine with “normal” faster faucet flow
Removes 1 contaminants:
Verify Your Water Quality with Independent Testing
With 3 contaminants above EPA MCLGs and 1 above EPA's legal limit (MCL) and 2 contaminants with an EPA health goal detected in some samples (no level on file), independent laboratory testing provides a second opinion and can track changes over time.
SimpleLab
Advanced Home Water Test
$269
Comprehensive water analysis testing over 200 contaminants including bacteria, heavy metals, and chemical compounds.
Tap Score
Haloacetic Acids (HAA9) Test
$275
Tests for disinfection byproducts formed when chlorine reacts with organic matter in water treatment.
Tap Score
Advanced Microplastics Test
$829
Cutting-edge testing for microplastics particles in drinking water using advanced laboratory techniques.
With 4 contaminants above health guidelines, you may want to explore water purification options. Learn how to make distilled water at home for applications like humidifiers, CPAP machines, and baby formula.
On a private well near Grayson? Public-water results do not apply to private wells. See Okmulgee County well water testing and USGS risk data — modeled arsenic, nitrate, and the tests to run.
Frequently Asked Questions About Grayson Tap Water
Grayson's water has 3 contaminants above EPA MCLGs and 1 above EPA's legal limit (MCL). We strongly recommend using a certified water filter to reduce exposure to these contaminants. Check our filter recommendations below for NSF-certified options that can remove the specific contaminants found in Grayson's water.
Spotted something off on this page?
Residents keep our data honest.
This form corrects our data; it does not reach OKMULGEE CO. RWD #4. For a problem with your water now (discolored water, no water, low pressure, a leak), contact OKMULGEE CO. RWD #4 directly.
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