WaterVerge

Is Tinker Afb, OK Tap Water Safe to Drink?

Graded B+, with 6 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓

2K residents served 1 water system PWSID: OK8005550
Overall Score
82.5 / 100
Violations
6 active
Last Updated
May 2026
Source
Purchased ground water
#60 of 358 in Oklahoma Top 44% nationally
Local Government
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
B+GRADE
Water Quality Grade
82.5/100
waterverge.com
B+ 82.5/100

Tinker Afb, OK — Water Quality Report

Tinker Afb's drinking water received a grade of B+ (82.5 out of 100), indicating good water quality. The city's 1 water system serves approximately 2,100 residents using purchased ground water.

Lead levels were measured at 0.0 ppb (90th percentile), well within EPA limits. This system has not yet been tested for PFAS under the EPA UCMR 5 program.

The system has 6 violations on record, including 0 health-based violations. 6 remain unresolved.

Data last updated: May 2026 · Source: EPA SDWIS, UCMR 5
Analysis

What to know about Tinker Afb's water

Tinker Afb ranks #60 out of 358 cities in Oklahoma for water quality, placing it above average in the state.

Tinker Afb purchases its water from a regional wholesaler, meaning quality depends on both the supplier's treatment and the local distribution system's condition.

As a small community water system, Tinker Afb may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.

Quality Breakdown

Water quality score

See methodology →
82.5 out of 100 Grade B+
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
40.5/45
A
Historical violation record including health-based and monitoring violations.
Lead & Copper
20/20
A
Lead at 0.0 ppb (90th percentile).
Contaminants
17/20
B
PFAS + legacy contaminant analysis.
Compliance
0/10
F
Monitoring and reporting compliance with EPA regulations.
Source Risk
5/5
A
Water source: Purchased ground water.
Water Safety

Is Tinker Afb, OK water safe to drink?

Concerns Identified

Tinker Afb's drinking water has significant quality concerns based on EPA testing data. With a grade of B+ (82.5/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 2,100 residents using groundwater (wells).

6
Active Violations
0.0 ppb
Lead (90th %ile)

Recent water quality updates for Tinker Afb

A timeline of significant water quality events, violations, and data updates.

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Tinker Afb's water quality assessment. Grade: B+ (82.5/100).

Violation
1 drinking water violation recorded

Contaminants: Lead and Copper Rule.

Violation
1 drinking water violation recorded

Contaminants: Consumer Confidence Rule.

Violation
1 drinking water violation recorded

Contaminants: Consumer Confidence Rule.

Key contaminant findings

Based on the most recent EPA sampling data for Tinker Afb's water supply.

Lead Within Limits
Detected: 0.0 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

Violation history

Tinker Afb's water system has 6 total violations on record, including 0 health-based violations. 6 remain unresolved. 3 violations were issued in the last 5 years.

MROther
Most recent violations:
Oct 2024 Lead and Copper Rule Open
Oct 2023 Consumer Confidence Rule Open
Jul 2021 Consumer Confidence Rule Open
Oct 2020 Consumer Confidence Rule Open
Dec 2019 Consumer Confidence Rule Open

Where does Tinker Afb's water come from?

Tinker Afb's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 2,100 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate.

What Tinker Afb residents can do

Install a water filter

Recommended: NSF-certified water filter. This addresses the specific contaminants found in Tinker Afb's water.

Request your utility's CCR

Your water utility is required to publish an annual Consumer Confidence Report (CCR) with detailed testing results. Ask for the latest copy or check your utility's website.

Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.

Contaminant Alerts

Top contaminants to know

View all ↓
Lead (90th percentile)
Inorganic / Heavy Metal
Safe
0.0 ppb
EPA Action Level: 15 ppb · 0% of limit
Safe Level
Compliance Record

Violation summary

6
Total violations
0
Health-based
6
Active / unresolved
Oct 2024
Most recent violation
Compliance Record

Violations & advisories

6 Total
6 Active
0 Health-based
0 Resolved
Violations by category
Consumer Confidence Rule
5
Lead and Copper Rule
1
Oct 2024 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Oct 2023 Active
Consumer Confidence Rule
Other Violation 0
Jul 2021 Active
Consumer Confidence Rule
Other Violation 0
Oct 2020 Active
Consumer Confidence Rule
Other Violation 0
Dec 2019 Active
Consumer Confidence Rule
Other Violation 0
Jul 2017 Active
Consumer Confidence Rule
Other Violation 0
Environmental Risk

Drought conditions

D3 — extreme drought

Oklahoma County is currently in D3 (extreme drought) per the U.S. Drought Monitor (week of May 5, 2026). Drought can elevate disinfection-byproduct (TTHM/HAA5) levels and taste/odor issues as utilities draw from lower reservoirs.

14
Weeks at D2+ (current streak)
11.0%
Months in D2+ (last 30y)
14
Weeks at D2+ (last 5y)

Source: U.S. Drought Monitor, updated weekly by NDMC, USDA, and NOAA.

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 0.0 15 ppb Inorganic Safe
Data source: EPA SDWIS, UCMR 5, local utility CCR.

Lead level trend (90th percentile)

EPA action level: 15 ppb
Lead has decreased by 0.0 ppb from 2010 (0.0 ppb) to 2025 (0.0 ppb).
Infrastructure

Water source & infrastructure

Primary Source
Purchased Groundwater
Operator
Local Government
Population Served
2,100
Water Systems
1
Water Source

Where Tinker Afb's water comes from

Purchased Groundwater

Tinker Afb purchases its water supply from a regional wholesale provider rather than treating raw water directly.

Water quality depends on both the wholesaler's treatment standards and the condition of Tinker Afb's local distribution pipes and storage facilities.

Purchased water systems are common in suburban areas and smaller communities that lack the infrastructure for independent treatment.

The system is operated by local government ownership and serves approximately 2,100 people through 1 water system.

Infrastructure

Water systems serving Tinker Afb

System Name PWSID Population Source
TINKER AFB FAMILY HOUSING OK8005550 2,100 GWP
Regional Comparison

How Tinker Afb compares

Full Oklahoma rankings →

Tinker Afb's score of 82.5/100 is above the average of 45/100 among major Oklahoma cities. It outscores 10 of 10 nearby cities.

Tinker Afb (this city)
82.5
Tulsa
48.5
Norman
38.4
Lawton
44.4
Oklahoma avg
45
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Frequently asked questions

Is Tinker Afb, OK tap water safe to drink?

Tinker Afb's water quality earned a grade of B+ (82.5/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #60 out of 358 cities tested in Oklahoma.

What contaminants are in Tinker Afb's water?

Lead was measured at 0.0 ppb (90th percentile). 6 violations are on record.

How is Tinker Afb's water quality grade calculated?

The grade is based on four factors: violation history (40%), lead and copper levels (25%), PFAS contamination (25%), and regulatory compliance (10%). The score is also adjusted based on how complete the available data is. See our methodology page for full details.

Do I need a water filter in Tinker Afb?

Based on current data, basic filtration should suffice for additional peace of mind.

Where does Tinker Afb's water come from?

Tinker Afb's water is sourced from Purchased ground water. The city has 1 water system serving approximately 2,100 residents.

Is Tinker Afb's groundwater at risk of contamination?

Tinker Afb uses groundwater, which can be affected by naturally occurring contaminants like arsenic, radon, and nitrate, as well as agricultural runoff and industrial activity. The system has 6 violations on record that may relate to groundwater quality. Groundwater systems are generally less susceptible to surface contamination but should be monitored for emerging contaminants like PFAS.

How does Tinker Afb's water compare to other cities?

Tinker Afb ranks #60 out of 358 cities in Oklahoma (better than 83% of state cities) and #6921 out of 15744 cities nationally (56th percentile). The grade of B+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

Does Tinker Afb's small water system affect quality?

Tinker Afb's system serves approximately 2,100 residents. Small community water systems (under 3,300 people) may have fewer financial resources for infrastructure upgrades and advanced treatment technologies. However, they are held to the same EPA drinking water standards as larger systems. This system has 6 violations on record.