WaterVerge

Is Dearing, OK Tap Water Safe to Drink?

Graded B, with 14 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓

804 residents served 2 water systems PWSID: KS2012516
Overall Score
79.7 / 100
Violations
14 active
Last Updated
May 2026
Source
Purchased surface water
#84 of 358 in Oklahoma Top 52% nationally
Local Government
High data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
BGRADE
Water Quality Grade
79.7/100
waterverge.com
B 79.7/100

Dearing, OK — Water Quality Report

Dearing's drinking water received a grade of B (79.7 out of 100), indicating good water quality. The city's 2 water systems serve approximately 804 residents using purchased surface water.

Lead levels were measured at 0.7 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 21 violations on record, including 4 health-based violations. 14 remain unresolved.

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

What to know about Dearing's water

Dearing ranks #84 out of 358 cities in Oklahoma for water quality, placing it above average in the state.

The city draws from surface water sources, which are more susceptible to seasonal runoff and agricultural contamination, requiring extensive multi-barrier treatment including coagulation, filtration, and disinfection.

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

Quality Breakdown

Water quality score

See methodology →
79.7 out of 100 Grade B
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
38.7/45
B
Historical violation record including health-based and monitoring violations.
Lead & Copper
20/20
A
Lead at 0.7 ppb (90th percentile).
Contaminants
17/20
B
PFAS + legacy contaminant analysis.
Compliance
0/10
F
Monitoring and reporting compliance with EPA regulations.
Source Risk
4/5
B
Water source: Purchased surface water.
Water Safety

Is Dearing, OK water safe to drink?

Concerns Identified

Dearing's drinking water has significant quality concerns based on EPA testing data. With a grade of B (79.7/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 2 water systems serve approximately 804 residents using surface water (rivers, lakes, or reservoirs).

14
Active Violations
0.7 ppb
Lead (90th %ile)

Recent water quality updates for Dearing

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

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Dearing's water quality assessment. Grade: B (79.7/100).

Violation
1 drinking water violation recorded

Contaminants: LEAD AND COPPER RULE REVISIONS.

Violation
1 drinking water violation recorded

Contaminants: LEAD AND COPPER RULE REVISIONS.

Violation
1 drinking water violation recorded

Contaminants: Revised Total Coliform Rule.

Key contaminant findings

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

Lead Within Limits
Detected: 0.7 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

Violation history

Dearing's water system has 21 total violations on record, including 4 health-based violations. 14 remain unresolved. 2 violations were issued in the last 5 years.

RPTMONMROtherMCL
Most recent violations:
Jul 2025 LEAD AND COPPER RULE REVISIONS Open
Oct 2024 LEAD AND COPPER RULE REVISIONS Open
Dec 2018 Revised Total Coliform Rule Resolved
Nov 2018 Revised Total Coliform Rule Resolved
Sep 2016 Lead and Copper Rule Open

Where does Dearing's water come from?

Dearing's drinking water comes from surface water (rivers, lakes, or reservoirs), supplied by 2 water systems serving approximately 804 people. Surface water sources are more susceptible to contamination from runoff, industrial discharge, and algal blooms, requiring extensive treatment.

What Dearing residents can do

Install a water filter

Recommended: NSF-certified water filter. This addresses the specific contaminants found in Dearing'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
0.7 ppb
EPA Action Level: 15 ppb · 5% of limit
Safe Level
Compliance Record

Violation summary

21
Total violations
4
Health-based
14
Active / unresolved
Jul 2025
Most recent violation
Compliance Record

Violations & advisories

21 Total
14 Active
4 Health-based
7 Resolved
Violations by category
Consumer Confidence Rule
8
Total Coliform Rule
5
Lead and Copper Rule Revisions
2
Revised Total Coliform Rule
2
Lead and Copper Rule
2
Jul 2025 Active
LEAD AND COPPER RULE REVISIONS
Reporting
Reporting 0
Oct 2024 Active
LEAD AND COPPER RULE REVISIONS
Reporting
Reporting 0
Sep 2016 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jul 2016 Active
Consumer Confidence Rule
Other Violation 0
Oct 2011 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jul 2011 Active
Consumer Confidence Rule
Other Violation 0
Jul 2006 Active
Consumer Confidence Rule
Other Violation 0
Jul 2004 Active
Consumer Confidence Rule
Other Violation 0
Jul 2003 Active
Consumer Confidence Rule
Other Violation 0
Jul 2001 Active
Consumer Confidence Rule
Other Violation 0
Jul 2000 Active
Consumer Confidence Rule
Other Violation 0
Oct 1999 Active
Consumer Confidence Rule
Other Violation 0
Active
Compliance Violation
Monitoring 0
Active
Compliance Violation
Monitoring 0
Dec 2018 Resolved
Revised Total Coliform Rule
Monitoring
Monitoring Resolved Dec 2018
Nov 2018 Resolved
Revised Total Coliform Rule
Monitoring
Monitoring Resolved Nov 2018
Jan 2009 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Jan 2009
Jun 2002 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Jun 2002
Jun 2002 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Jun 2002
Oct 1996 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Oct 1996
Showing 20 of 21 violations

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 0.7 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 decreased by 0.0 ppb from 2004 (0.7 ppb) to 2025 (0.7 ppb).
Infrastructure

Water source & infrastructure

Primary Source
Purchased Surface Water
Operator
Local Government
Population Served
804
Water Systems
2
Water Source

Where Dearing's water comes from

Purchased Surface Water

Dearing's drinking water comes primarily from surface water sources such as rivers, lakes, or reservoirs.

Surface water systems require multi-stage treatment including coagulation, sedimentation, filtration, and disinfection to meet EPA Safe Drinking Water Act standards.

These sources can be impacted by seasonal changes, stormwater runoff, upstream agriculture, and industrial discharge.

The system is operated by local government ownership and serves approximately 804 people through 2 water systems.

Infrastructure

Water systems serving Dearing

System Name PWSID Population Source
MONTGOMERY CO RWD 2C B KS2012516 428 SWP
DEARING, CITY OF KS2012511 376 SWP
Regional Comparison

How Dearing compares

Full Oklahoma rankings →

Dearing's score of 79.7/100 is above the average of 45/100 among major Oklahoma cities. It outscores 9 of 10 nearby cities.

Dearing (this city)
79.7
Tulsa
48.5
Norman
38.4
Lawton
44.4
Oklahoma avg
45
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Frequently asked questions

Is Dearing, OK tap water safe to drink?

Dearing's water quality earned a grade of B (79.7/100). Some concerns have been identified. Consider a water filter for an extra layer of protection. The city ranks #84 out of 358 cities tested in Oklahoma.

What contaminants are in Dearing's water?

Lead was measured at 0.7 ppb (90th percentile). 21 violations are on record.

How is Dearing'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 Dearing?

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

Where does Dearing's water come from?

Dearing's water is sourced from Purchased surface water. The city has 2 water systems serving approximately 804 residents.

What health violations has Dearing's water system had?

Dearing has 4 health-based violations on record. The most recent violation was recorded in July 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 14 violations remain unresolved.

How does Dearing's water compare to other cities?

Dearing ranks #84 out of 358 cities in Oklahoma (better than 77% of state cities) and #8172 out of 15744 cities nationally (48th percentile). The grade of B reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.