WaterVerge

Is Covington, OK Tap Water Safe to Drink?

Graded B+, with 3 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓

553 residents served 1 water system PWSID: OK3002419
Overall Score
81.2 / 100
Violations
3 active
Last Updated
May 2026
Source
Purchased ground water
#75 of 358 in Oklahoma Top 48% nationally
Local Government
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
B+GRADE
Water Quality Grade
81.2/100
waterverge.com
B+ 81.2/100

Covington, OK — Water Quality Report

Covington's drinking water received a grade of B+ (81.2 out of 100), indicating good water quality. The city's 1 water system serves approximately 553 residents using purchased ground water.

Lead levels were measured at 6.7 ppb (90th percentile), which is within EPA limits but above recommended levels. This system has not yet been tested for PFAS under the EPA UCMR 5 program.

The system has 14 violations on record, including 1 health-based violation. 3 remain unresolved.

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

What to know about Covington's water

Covington ranks #75 out of 358 cities in Oklahoma for water quality, placing it above average in the state.

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

While lead levels are within EPA limits, they are above the recommended 5 ppb threshold that health organizations consider ideal. A point-of-use filter adds an extra layer of protection.

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

The system has seen 6 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.

Quality Breakdown

Water quality score

See methodology →
81.2 out of 100 Grade B+
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
38.2/45
B
Historical violation record including health-based and monitoring violations.
Lead & Copper
16/20
B
Lead at 6.7 ppb (90th percentile).
Contaminants
17/20
B
PFAS + legacy contaminant analysis.
Compliance
5/10
D
Monitoring and reporting compliance with EPA regulations.
Source Risk
5/5
A
Water source: Purchased ground water.
Water Safety

Is Covington, OK water safe to drink?

Concerns Identified

Covington's drinking water has significant quality concerns based on EPA testing data. With a grade of B+ (81.2/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 553 residents using groundwater (wells).

3
Active Violations
6.7 ppb
Lead (90th %ile)
3 events
Disaster History

Recent water quality updates for Covington

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

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Covington's water quality assessment. Grade: B+ (81.2/100).

Violation
1 drinking water violation recorded

Contaminants: Lead and Copper Rule.

Violation
2 drinking water violations recorded

Contaminants: Total Haloacetic Acids (HAA5), TTHM.

Violation
1 drinking water violation recorded

Contaminants: Consumer Confidence Rule.

Disaster
HURRICANE KATRINA EVACUATION

Federal disaster declaration (FEMA DR-3219). Hurricane event — may have impacted local water infrastructure.

Disaster
SEVERE STORMS & FLOODING

Federal disaster declaration (FEMA DR-778). Flood event — may have impacted local water infrastructure.

Key contaminant findings

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

Lead Elevated
Detected: 6.7 ppb Limit: 15 ppb (EPA Action Level)

Within EPA limits but above the American Academy of Pediatrics recommended level of 1 ppb. An NSF 53-certified filter provides additional protection.

Violation history

Covington's water system has 14 total violations on record, including 1 health-based violation. 3 remain unresolved. 6 violations were issued in the last 5 years.

MROtherMCL
Most recent violations:
Oct 2025 Lead and Copper Rule Open
Jan 2025 Total Haloacetic Acids (HAA5) Resolved
Jan 2025 TTHM Resolved
Oct 2023 Consumer Confidence Rule Open
Jul 2022 Total Haloacetic Acids (HAA5) Resolved

Flood & environmental risk

Garfield County has experienced 3 federally declared disasters since 1973. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies.

HURRICANE KATRINA EVACUATION
Hurricane FEMA DR-3219
SEVERE STORMS & FLOODING
Flood FEMA DR-778
SEVERE STORMS & FLOODING
Flood FEMA DR-404

Where does Covington's water come from?

Covington's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 553 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate.

What Covington residents can do

Install a water filter

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

Flush your taps

Run cold water for 30 seconds before drinking, especially in the morning. Lead and copper leach from household plumbing when water sits in pipes.

Monitor alerts during storms

Covington's area has a history of flooding. After severe weather, watch for boil water advisories from your local utility.

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
6.7 ppb
EPA Action Level: 15 ppb · 45% of limit
Safe Level
Compliance Record

Violation summary

14
Total violations
1
Health-based
3
Active / unresolved
Oct 2025
Most recent violation
Compliance Record

Violations & advisories

14 Total
3 Active
1 Health-based
11 Resolved
Violations by category
Total Coliform Rule
6
Stage 2 Disinfectants and Disinfection Byproducts Rule
4
Consumer Confidence Rule
2
Lead and Copper Rule
1
Stage 1 Disinfectants and Disinfection Byproducts Rule
1
Oct 2025 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Oct 2023 Active
Consumer Confidence Rule
Other Violation 0
Jul 2014 Active
Consumer Confidence Rule
Other Violation 0
Jan 2025 Resolved
Total Haloacetic Acids (HAA5)
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2025
Jan 2025 Resolved
TTHM
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2025
Jul 2022 Resolved
Total Haloacetic Acids (HAA5)
Monitoring & Reporting
Monitoring & Reporting Resolved Jun 2023
Jul 2022 Resolved
TTHM
Monitoring & Reporting
Monitoring & Reporting Resolved Jun 2023
Jan 2016 Resolved
Chlorine
Monitoring & Reporting
Monitoring & Reporting Resolved Mar 2016
Jun 2010 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Jun 2010
Apr 2008 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Apr 2008
Jun 2005 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Jun 2005
Jul 2004 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Jul 2004
Feb 2004 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Feb 2004
Aug 2003 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Aug 2003
Environmental Risk

Drought conditions

D3 — extreme drought

Garfield 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.

10
Weeks at D2+ (current streak)
12.5%
Months in D2+ (last 30y)
10
Weeks at D2+ (last 5y)

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

Environmental Risk

Flood & disaster history

3
Declared disasters
Sep 2005
Most recent
Flood
Most common type

Garfield County has experienced 3 federally declared disasters since 1973. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.

Sep 2005
HURRICANE KATRINA EVACUATION
Hurricane FEMA #3219
Oct 1986
SEVERE STORMS & FLOODING
Flood FEMA #778
Oct 1973
SEVERE STORMS & FLOODING
Flood FEMA #404

Recommended water filters

Based on contaminants detected in Covington's water supply, we recommend the following filter types.

🚰
For Lead
Reverse Osmosis or NSF 53-Certified Pitcher
Lead detected at 6.7 ppb
Read our guide →

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 6.7 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 increased by 3.7 ppb from 2003 (3.0 ppb) to 2022 (6.7 ppb).
Infrastructure

Water source & infrastructure

Primary Source
Purchased Groundwater
Operator
Local Government
Population Served
553
Water Systems
1
Water Source

Where Covington's water comes from

Purchased Groundwater

Covington 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 Covington'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 553 people through 1 water system.

Infrastructure

Water systems serving Covington

System Name PWSID Population Source
COVINGTON OK3002419 553 GWP
Regional Comparison

How Covington compares

Full Oklahoma rankings →

Covington's score of 81.2/100 is above the average of 45/100 among major Oklahoma cities. It outscores 10 of 10 nearby cities.

Covington (this city)
81.2
Tulsa
48.5
Norman
38.4
Lawton
44.4
Oklahoma avg
45
City Profile

About Covington, OK

Wikipedia →

Covington is a town in Garfield County, Oklahoma, United States. The population was 477 at the 2020 census.

Economic Profile
$70,625
Median Income
$943/mo
Median Rent
6.5%
Unemployment
Community
40.7
Median Age
301
People / sq mi
13.4%
College Educated
79.6%
Homeownership
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Frequently asked questions

Is Covington, OK tap water safe to drink?

Covington's water quality earned a grade of B+ (81.2/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #75 out of 358 cities tested in Oklahoma.

What contaminants are in Covington's water?

Lead was measured at 6.7 ppb (90th percentile). 14 violations are on record.

How is Covington'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 Covington?

While lead levels are within EPA limits, a filter adds extra protection. Based on current data, basic filtration should suffice for additional peace of mind.

Where does Covington's water come from?

Covington's water is sourced from Purchased ground water. The city has 1 water system serving approximately 553 residents.

What health violations has Covington's water system had?

Covington has 1 health-based violation on record. The most recent violation was recorded in October 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 3 violations remain unresolved.

Is Covington's groundwater at risk of contamination?

Covington 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 14 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 Covington's water compare to other cities?

Covington ranks #75 out of 358 cities in Oklahoma (better than 79% of state cities) and #7577 out of 15744 cities nationally (52th percentile). The grade of B+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

Does Covington's small water system affect quality?

Covington's system serves approximately 553 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 14 violations on record.