Tahlequah, OK (74464): PFAS Detected in Mapped Water Systems
EPA data combined for 12 water systems mapped to this ZIP (largest mapped system: Tahlequah Pwa)
Health-based violation records by water system:
- Stickross Mountain Water Company (13)
- Tahlequah Pwa (3)
- Cherokee Company Rwd #2 (keys) (1)
- Burnt Cabin Rwd (1)
- Peggs Water Company (1)
- and 1 more
EPA records for the water systems mapped to 74464 in Tahlequah, OK contain 92 recorded violations for inclusive record years 2021 through 2026, all mapped systems combined; 20 are marked health-based.
Data source: U.S. Environmental Protection Agency (EPA) SDWIS
At a Glance
- Water EPA records for water systems mapped to this ZIP show 20 health-based violations and 72 non-health-based (since 2021).
- Lead The reported 90th-percentile lead result is below the laboratory reporting limit, not a measured zero; EPA's health goal for lead is zero.
- PFAS PFAS detected in UCMR5 sampling; see the PFAS section for each compound, compared with the federal PFAS MCL where one exists.
- Radon EPA Zone 2 - county-level radon potential, not a home measurement.
- Flood 79 cumulative NFIP claim records. Check the current FEMA map for a specific address.
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Safety records for Tahlequah (74464) contain one critical finding - 1 high-priority condition follow.
Score Breakdown
Overall Home Safety Score: Score unavailable
Required evidence is missing. Missing values remain unknown and are not imputed or renormalized.
Canonical components
Required domains
Coverage: 3 of 4 components and 2 of 3 domains observed.
Model 4.0.0; series home-safety-v4-cross-vertical.
Safety & Health (9) CRITICAL
Your Water System
ZIP code 74464 in Tahlequah, Oklahoma is mapped to the water system Tahlequah Pwa (EPA ID: OK1021701). This system provides water to approximately 14,458 people from surface water sources.
There are 12 community water systems serving this area.
Water Systems Serving This Area
| System Name | EPA ID | Population | Source |
|---|---|---|---|
| Tahlequah Pwa | OK1021701 | 14,458 | Surface water |
| Cherokee Company Rwd #3 (grandview) | OK4001117 | 2,300 | Surface water |
| Stickross Mountain Water Company | OK4001118 | 3,250 | Surface water |
| Corral Kreek Subdiv | OK3001119 | 273 | Surface water |
| Cherokee Company Rwd #2 (keys) | OK1021711 | 1,493 | Surface water |
Other Water Quality Reports in Oklahoma
- 73001 (Albert)
- 73002 (Alex) - 39 violations recorded for mapped water systems
- 73003 (Edmond)
- 73004 (Amber) - 166 violations recorded for mapped water systems
- 73005 (Anadarko) - 102 violations recorded for mapped water systems
- 73006 (Apache) - 39 violations recorded for mapped water systems
- 73007 (Arcadia) - 30 violations recorded for mapped water systems
- 73008 (Bethany) - 7 violations recorded for mapped water systems
- 73009 (Binger) - 14 violations recorded for mapped water systems
- 73010 (Blanchard) - 677 violations recorded for mapped water systems
- 73011 (Bradley) - 105 violations recorded for mapped water systems
- 73012 (Edmond) - 8 violations recorded for mapped water systems
- 73013 (Edmond) - 8 violations recorded for mapped water systems
- 73014 (Calumet) - 90 violations recorded for mapped water systems
- 73015 (Carnegie) - 6 violations recorded for mapped water systems
- 73016 (Cashion) - 195 violations recorded for mapped water systems
- 73017 (Cement) - 109 violations recorded for mapped water systems
- 73018 (Chickasha) - 191 violations recorded for mapped water systems
- 73019 (Norman) - 3 violations recorded for mapped water systems
- 73020 (Choctaw) - 290 violations recorded for mapped water systems
Nearby Water Quality Reports
- 74465 (Tahlequah) - 3 mi
- 74471 (Welling) - 7 mi - 27 violations recorded for mapped water systems
- 74451 (Park Hill) - 8 mi - 54 violations recorded for mapped water systems
- 74444 (Moodys) - 9 mi
- 74441 (Hulbert) - 10 mi - 96 violations recorded for mapped water systems
- 74427 (Cookson) - 14 mi - 16 violations recorded for mapped water systems
- 74457 (Proctor) - 15 mi - 74 violations recorded for mapped water systems
- 74434 (Fort Gibson) - 16 mi - 245 violations recorded for mapped water systems
- 74452 (Peggs) - 16 mi - 2 violations recorded for mapped water systems
- 74359 (Oaks) - 19 mi
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Tahlequah Pwa (OK1021701) on EPA.gov.
4 of the top compounds applied across the surrounding county in USGS pesticide-use estimates appear on EPA drinking-water monitoring lists. See the agricultural pesticide-use section.
Compliance History
PFAS Contamination Detected
PFAS ("forever chemicals") have been reported in samples from water systems associated with ZIP code 74464.
Detected compounds: PFBS, PFHxA, PFPeA.
Highest measured level: 0.0057 µg/L
Reverse osmosis (RO) and activated carbon block filters can reduce PFAS at the tap. Certifications list the compounds covered: an NSF/ANSI 53 or 58 claim for PFOA/PFOS does not cover every PFAS, so check that the product lists the compounds detected here.
Health Risks from Detected Contaminants
Haloacetic Acids (HAA5)
High RiskEPA reference value: 0.06 mg/L · 20 violations on record
Increased risk of cancer
Treatment options (verify a product is certified to reduce this contaminant): granular activated carbon (GAC), carbon block filter, reverse osmosis · Find a filter →
Total Trihalomethanes (TTHM)
High RiskEPA reference value: 0.08 mg/L · 15 violations on record
Long-term exposure is associated with increased cancer risk, including bladder cancer; possible reproductive effects
At-risk groups: pregnant women, long-term consumers of chlorinated water
Treatment options (verify a product is certified to reduce this contaminant): granular activated carbon (GAC), carbon block filter, point-of-entry aeration · Find a filter →
Environmental Hazards (11) HIGH
Home & Infrastructure (6) MODERATE
Cost & Community (9) HIGH
CPSC product recall notices
These national notices are not matched to this ZIP code or water system.
Protect Your Home in Tahlequah
Based on local data for ZIP 74464, these services may benefit homeowners in your area.
Based on local data for your area. Use the tools below to explore your options.
Home & Flood Insurance
The ZIP code for this report in Tahlequah has 79 FEMA flood claims on record. Standard homeowner policies don't cover flood damage - make sure you're protected.
Typical cost: Flood insurance: premiums vary by property and flood zone; request a quote
Check Your Flood Zone (Free)FEMA flood map lookup - see if your property is in a flood zone
Free tip: Check your FEMA flood zone at msc.fema.gov (free lookup)
Gutter Installation & Repair
The median home in 74464 was built around 1985. Aging gutters can cause foundation damage, basement flooding, and mold - a professional assessment can prevent costly repairs.
Typical cost: Gutter installation: typically $1,000–$2,500 for a standard home
Estimate Your Home Maintenance CostsService recommendations are based on public data for this ZIP code (FEMA, Census ACS, NWS). Actual needs vary by property. By calling, your information will be shared with an independent service provider. ZipCheckup may receive compensation. Cost estimates are approximate and vary by property, condition, and contractor.
Frequently Asked Questions
Is the tap water in 74464 safe to drink?
EPA SDWIS records 92 violations since 2021 across the water systems mapped to ZIP 74464 (primary system: Tahlequah Pwa), including 20 health-based. The violation table above shows which system each record belongs to. ZipCheckup last updated this page in July 2026. The federal source release date is unavailable, so that month is not presented as source currency.
Where does 74464's water come from?
The recorded water source for Tahlequah Pwa, a system mapped to ZIP code 74464, is Surface water. This system serves approximately 14,458 people.
How can I get my water tested in Tahlequah?
If Tahlequah Pwa supplies your home, contact it for its Consumer Confidence Report; otherwise contact the water utility that serves your address, or hire a certified lab for independent home water testing. The EPA recommends annual testing if you use a private well.
What is the radon risk for 74464?
74464 is mapped to a county in EPA Radon Zone 2 (moderate county-level radon potential; EPA recommends testing every home), located in Cherokee County. EPA radon zones range from Zone 1 (highest county-level potential) to Zone 3 (lowest). Testing your home is recommended regardless of zone.
Are there PFAS (forever chemicals) in 74464's water?
Yes, PFAS have been detected in samples from water systems mapped to 74464. Reverse osmosis and activated carbon filters certified to NSF/ANSI 53 or 58 specifically for PFOA/PFOS reduction can reduce PFAS.
What does the NFIP claim history show for ZIP 74464?
FEMA records contain 79 flood insurance claims filed in ZIP code 74464; the recorded rated-zone value (the most frequent one if there are several claims) is A, which is claims evidence and may differ from the current FEMA map zone for a property. This is a substantial claim history, but claim count is not a count of distinct events or properties. Review FEMA's map for the specific property.
How to cite this page
ZipCheckup. (2026). Tahlequah, OK (74464): PFAS Detected in Mapped Water Systems. https://zipcheckup.com/report/74464/
@misc{zipcheckup-report-74464,
author = {{ZipCheckup}},
title = {{Tahlequah, OK (74464): PFAS Detected in Mapped Water Systems}},
year = {2026},
url = {https://zipcheckup.com/report/74464/}
}
Page version: October 2026.
Nearby ZIP Code Reports
Water quality comparison for ZIP codes near 74464
| ZIP Code | City, State | Distance | Grade | Violations |
|---|---|---|---|---|
| 74465 | Tahlequah, OK | 3.5 mi | N/A | 0 |
| 74471 | Welling, OK | 6.6 mi | N/A | 27 |
| 74451 | Park Hill, OK | 7.7 mi | N/A | 54 |
| 74444 | Moodys, OK | 9.4 mi | N/A | 0 |
| 74441 | Hulbert, OK | 10.5 mi | N/A | 96 |
| 74427 | Cookson, OK | 14.2 mi | N/A | 16 |
| 74457 | Proctor, OK | 14.8 mi | N/A | 74 |
| 74434 | Fort Gibson, OK | 16.2 mi | N/A | 245 |
| 74452 | Peggs, OK | 16.3 mi | N/A | 2 |
| 74359 | Oaks, OK | 19.0 mi | N/A | 0 |
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