Wann, OK (74083): 23 Health-Based Violations Recorded for Mapped Water Systems
EPA data combined for 4 water systems mapped to this ZIP (largest mapped system: Nowata Company Rwd #7)
Health-based violation records by water system:
EPA records for the water systems mapped to 74083 in Wann, OK contain 81 recorded violations for inclusive record years 2021 through 2026, all mapped systems combined; 23 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 23 health-based violations and 58 non-health-based (since 2021).
- Lead The reported 90th-percentile lead result of 0.0014 mg/L is below the EPA action level for water systems; 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 3 - county-level radon potential, not evidence of a low home result.
Get updates when new water-quality data is available for your area
Free alerts when new EPA data affects ZIP code 74083. No spam - just safety updates.
Unsubscribe anytime. We only send updates when your safety score changes. See our Privacy Policy.
See incorrect data? Let us know
From the safety record for Wann (74083): one critical finding and 1 high-priority alert.
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: 2 of 4 components and 1 of 3 domains observed.
Model 4.0.0; series home-safety-v4-cross-vertical.
Safety & Health (7) CRITICAL
Your Water System
ZIP code 74083 in Wann, Oklahoma is mapped to the water system Nowata Company Rwd #7 (EPA ID: OK3005321). This system provides water to approximately 1,050 people from surface water sources.
There are 4 community water systems serving this area.
Water Systems Serving This Area
| System Name | EPA ID | Population | Source |
|---|---|---|---|
| Nowata Company Rwd #7 | OK3005321 | 1,050 | Surface water |
| Washington Company Rwd #5 | OK3007409 | 900 | Surface water |
| Dewey Public Works Authority | OK3007402 | 3,490 | Surface water |
| Nowata Company Rw & S District #1 | OK3005304 | 500 | 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
- 67364 (Tyro, KS) - 7 mi
- 74022 (Copan) - 8 mi - 28 violations recorded for mapped water systems
- 67340 (Dearing, KS) - 9 mi
- 67333 (Caney, KS) - 9 mi - 51 violations recorded for mapped water systems
- 74042 (Lenapah) - 9 mi - 110 violations recorded for mapped water systems
- 74072 (S Coffeyville) - 10 mi - 121 violations recorded for mapped water systems
- 67337 (Coffeyville, KS) - 11 mi - 40 violations recorded for mapped water systems
- 74029 (Dewey) - 13 mi - 55 violations recorded for mapped water systems
- 67347 (Havana, KS) - 14 mi - 5 violations recorded for mapped water systems
- 74027 (Delaware) - 14 mi - 122 violations recorded for mapped water systems
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Nowata Company Rwd #7 (OK3005321) 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 74083.
Detected compounds: PFBA.
Highest measured level: 0.011 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
Total Trihalomethanes (TTHM)
High RiskEPA reference value: 0.08 mg/L · 24 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 →
Haloacetic Acids (HAA5)
High RiskEPA reference value: 0.06 mg/L · 11 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 →
Environmental Hazards (10) MODERATE
Home & Infrastructure (6) OK
Cost & Community (6) OK
CPSC product recall notices
These national notices are not matched to this ZIP code or water system.
Frequently Asked Questions
Is the tap water in 74083 safe to drink?
EPA SDWIS records 81 violations since 2021 across the water systems mapped to ZIP 74083 (primary system: Nowata Company Rwd #7), including 23 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 74083's water come from?
The recorded water source for Nowata Company Rwd #7, a system mapped to ZIP code 74083, is Surface water. This system serves approximately 1,050 people.
How can I get my water tested in Wann?
If Nowata Company Rwd #7 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.
Is lead a concern in 74083 tap water?
The Lead and Copper Rule record selected for 74083 reports a 90th-percentile lead result of 0.0014 mg/L for a water system mapped to this ZIP (record date 2025-12-31). The EPA action level is 0.015 mg/L. This result is below the EPA action level; it does not show the lead level in each home.
What is the radon risk for 74083?
74083 is mapped to a county in EPA Radon Zone 3 (low county-level radon potential; EPA recommends testing every home), located in Nowata 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 74083's water?
Yes, PFAS have been detected in samples from water systems mapped to 74083. Reverse osmosis and activated carbon filters certified to NSF/ANSI 53 or 58 specifically for PFOA/PFOS reduction can reduce PFAS.
How to cite this page
ZipCheckup. (2026). Wann, OK (74083): 23 Health-Based Violations Recorded for Mapped Water Systems. https://zipcheckup.com/report/74083/
@misc{zipcheckup-report-74083,
author = {{ZipCheckup}},
title = {{Wann, OK (74083): 23 Health-Based Violations Recorded for Mapped Water Systems}},
year = {2026},
url = {https://zipcheckup.com/report/74083/}
}
Page version: October 2026.
Nearby ZIP Code Reports
Water quality comparison for ZIP codes near 74083
| ZIP Code | City, State | Distance | Grade | Violations |
|---|---|---|---|---|
| 67364 | Tyro, KS | 7.2 mi | N/A | 0 |
| 74022 | Copan, OK | 7.9 mi | N/A | 28 |
| 67340 | Dearing, KS | 9.0 mi | N/A | 0 |
| 67333 | Caney, KS | 9.3 mi | N/A | 51 |
| 74042 | Lenapah, OK | 9.4 mi | N/A | 110 |
| 74072 | S Coffeyville, OK | 9.9 mi | N/A | 121 |
| 67337 | Coffeyville, KS | 10.7 mi | N/A | 40 |
| 74029 | Dewey, OK | 13.0 mi | B | 55 |
| 67347 | Havana, KS | 13.9 mi | N/A | 5 |
| 74027 | Delaware, OK | 14.1 mi | N/A | 122 |
Nearby ZIP Code Reports
2026 Rankings for Your Area
Overall safety breakdown
Home Safety Score →Find the right water filter
Water Filter Matcher →Compare filters, tests & services
Compare My Options →Compare with another ZIP
Compare Tool →2026 Rankings