Water Quality in DEER CREEK, OK (74636)

EPA violation data for public water systems serving ZIP code 74636.

123

Total Violations

Health-Based

Monitoring / Reporting

113

Resolved

What does this mean?

113 of 123 violations have been resolved. 38 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 85 are monitoring or reporting violations (missed testing deadlines or late paperwork — not necessarily a water quality issue). Not all violations mean your water is unsafe. The EPA requires reporting even for minor administrative issues.

Water systems: 1 Population served: 147

Violations Detail (123 total)

Contaminant	Category	MCL Limit	Measured	Date	Status	Health Effects
E. COLI	Monitoring	0	N/A	Sep 9, 2025	Active	Severe gastrointestinal illness; may be fatal in vulnerable populations
Arsenic	Health-Based	N/A	0.011	Jun 30, 2025	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Public Notice	Monitoring	N/A	N/A	Apr 6, 2025	Active	N/A
Gross Beta Particle Activity	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Gross Beta Particle Activity	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Arsenic	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Gross Alpha, Excl. Radon and U	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Gross Alpha, Excl. Radon and U	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Arsenic	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Nitrate-Nitrite	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Nitrate-Nitrite	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Arsenic	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.012	Mar 31, 2025	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.012	Mar 31, 2025	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Combined Uranium	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Combined Uranium	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Combined Radium (-226 and -228)	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Combined Radium (-226 and -228)	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jan 9, 2025	Active	N/A
Arsenic	Health-Based	N/A	0.011	Dec 31, 2024	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.011	Dec 31, 2024	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Nitrate-Nitrite	Health-Based	N/A	11	Dec 31, 2024	Resolved	N/A
Nitrate-Nitrite	Health-Based	N/A	11	Dec 31, 2024	Resolved	N/A
Nitrate-Nitrite	Health-Based	N/A	11	Dec 31, 2024	Resolved	N/A
LEAD AND COPPER RULE REVISIONS	Monitoring	N/A	N/A	Oct 16, 2024	Active	N/A
LEAD AND COPPER RULE REVISIONS	Health-Based	N/A	N/A	Oct 16, 2024	Active	N/A
Nitrate-Nitrite	Health-Based	N/A	11	Sep 30, 2024	Resolved	N/A
Arsenic	Health-Based	N/A	0.011	Sep 30, 2024	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Health-Based	N/A	0.011	Sep 30, 2024	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Nitrate-Nitrite	Health-Based	N/A	11	Sep 30, 2024	Resolved	N/A
Nitrate-Nitrite	Health-Based	N/A	11	Sep 30, 2024	Resolved	N/A
E. COLI	Monitoring	0	N/A	Sep 26, 2024	Active	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Sep 26, 2024	Active	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Sep 26, 2024	Active	Severe gastrointestinal illness; may be fatal in vulnerable populations
Public Notice	Monitoring	N/A	N/A	Aug 24, 2024	Active	N/A
Public Notice	Monitoring	N/A	N/A	Jul 3, 2024	Active	N/A
Nitrate-Nitrite	Health-Based	N/A	11	Jun 30, 2024	Resolved	N/A
Nitrate-Nitrite	Health-Based	N/A	11	Jun 30, 2024	Resolved	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Nitrate-Nitrite	Health-Based	N/A	11	Jun 30, 2024	Resolved	N/A
Nitrate-Nitrite	Health-Based	N/A	11	Mar 31, 2024	Resolved	N/A
Nitrate-Nitrite	Health-Based	N/A	11	Mar 31, 2024	Resolved	N/A
Nitrate-Nitrite	Health-Based	N/A	11	Mar 31, 2024	Resolved	N/A
Nitrate-Nitrite	Health-Based	N/A	11	Dec 31, 2023	Resolved	N/A
Nitrate-Nitrite	Health-Based	N/A	11	Dec 31, 2023	Resolved	N/A
Nitrate-Nitrite	Health-Based	N/A	11	Dec 31, 2023	Resolved	N/A
Nitrate-Nitrite	Health-Based	N/A	11	Dec 31, 2023	Resolved	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Oct 1, 2023	Resolved	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Oct 1, 2023	Resolved	N/A
Nitrate-Nitrite	Health-Based	N/A	11	Sep 30, 2023	Resolved	N/A
Nitrate-Nitrite	Health-Based	N/A	11	Sep 30, 2023	Resolved	N/A
Nitrate-Nitrite	Health-Based	N/A	11	Sep 30, 2023	Resolved	N/A
Nitrate-Nitrite	Health-Based	N/A	11	Sep 30, 2023	Resolved	N/A
Nitrate-Nitrite	Health-Based	N/A	11	Jun 30, 2023	Resolved	N/A
Nitrate-Nitrite	Health-Based	N/A	11	Jun 30, 2023	Resolved	N/A
Nitrate-Nitrite	Health-Based	N/A	11	Jun 30, 2023	Resolved	N/A
Nitrate-Nitrite	Health-Based	N/A	11	Jun 30, 2023	Resolved	N/A
Chlorine	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	Eye and nose irritation; stomach discomfort
Revised Total Coliform Rule	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Oct 1, 2022	Resolved	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Oct 1, 2022	Resolved	N/A
Combined Radium (-226 and -228)	Health-Based	N/A	6	Sep 30, 2022	Resolved	N/A
Combined Radium (-226 and -228)	Health-Based	N/A	6	Sep 30, 2022	Resolved	N/A
Combined Radium (-226 and -228)	Health-Based	N/A	6	Sep 30, 2022	Resolved	N/A
Combined Radium (-226 and -228)	Health-Based	N/A	6	Jun 30, 2022	Resolved	N/A
Combined Radium (-226 and -228)	Health-Based	N/A	6	Jun 30, 2022	Resolved	N/A
Combined Radium (-226 and -228)	Health-Based	N/A	6	Jun 30, 2022	Resolved	N/A
Gross Alpha, Excl. Radon and U	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Combined Radium (-226 and -228)	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Gross Alpha, Excl. Radon and U	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Gross Alpha, Excl. Radon and U	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Gross Alpha, Excl. Radon and U	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Nitrate-Nitrite	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Nitrate-Nitrite	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Nitrate-Nitrite	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Nitrate-Nitrite	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Gross Beta Particle Activity	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Gross Beta Particle Activity	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Gross Beta Particle Activity	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Gross Beta Particle Activity	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Combined Radium (-226 and -228)	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Combined Radium (-226 and -228)	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Combined Radium (-226 and -228)	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Arsenic	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Combined Uranium	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Combined Uranium	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Combined Uranium	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Combined Uranium	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Combined Radium (-226 and -228)	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
Gross Alpha, Excl. Radon and U	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
Combined Radium (-226 and -228)	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
Combined Radium (-226 and -228)	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
Combined Radium (-226 and -228)	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
Combined Uranium	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
Combined Uranium	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
Combined Uranium	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
Gross Beta Particle Activity	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
Arsenic	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Gross Beta Particle Activity	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
Gross Beta Particle Activity	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
Gross Beta Particle Activity	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
Gross Alpha, Excl. Radon and U	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
Gross Alpha, Excl. Radon and U	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
Gross Alpha, Excl. Radon and U	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
Combined Uranium	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 30, 2021	Resolved	N/A
Chlorine	Monitoring	N/A	N/A	Mar 31, 2021	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Mar 31, 2021	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Mar 31, 2021	Resolved	Eye and nose irritation; stomach discomfort

Lead & Copper Levels

Violation Timeline

2025(19)

E. COLI

Sep 9Active

Arsenic

Jun 30Resolved

Public Notice

Apr 6Active

Gross Beta Particle Activity

Mar 31Resolved

Gross Beta Particle Activity

Mar 31Resolved

Arsenic

Mar 31Resolved

Gross Alpha, Excl. Radon and U

Mar 31Resolved

Gross Alpha, Excl. Radon and U

Mar 31Resolved

Arsenic

Mar 31Resolved

Nitrate-Nitrite

Mar 31Resolved

Nitrate-Nitrite

Mar 31Resolved

Arsenic

Mar 31Resolved

Arsenic

Mar 31Resolved

Arsenic

Mar 31Resolved

Combined Uranium

Mar 31Resolved

Combined Uranium

Mar 31Resolved

Combined Radium (-226 and -228)

Mar 31Resolved

Combined Radium (-226 and -228)

Mar 31Resolved

Public Notice

Jan 9Active

2024(25)

Arsenic

Dec 31Resolved

Arsenic

Dec 31Resolved

Nitrate-Nitrite

Dec 31Resolved

Nitrate-Nitrite

Dec 31Resolved

Nitrate-Nitrite

Dec 31Resolved

LEAD AND COPPER RULE REVISIONS

Oct 16Active

LEAD AND COPPER RULE REVISIONS

Oct 16Active

Nitrate-Nitrite

Sep 30Resolved

Arsenic

Sep 30Resolved

Arsenic

Sep 30Resolved

Nitrate-Nitrite

Sep 30Resolved

Nitrate-Nitrite

Sep 30Resolved

E. COLI

Sep 26Active

E. COLI

Sep 26Active

E. COLI

Sep 26Active

Public Notice

Aug 24Active

Public Notice

Jul 3Active

Nitrate-Nitrite

Jun 30Resolved

Nitrate-Nitrite

Jun 30Resolved

Consumer Confidence Rule

Jun 30Resolved

Consumer Confidence Rule

Jun 30Resolved

Nitrate-Nitrite

Jun 30Resolved

Nitrate-Nitrite

Mar 31Resolved

Nitrate-Nitrite

Mar 31Resolved

Nitrate-Nitrite

Mar 31Resolved

How Does This Compare?

DEER CREEK (74636) has 123 recorded violations, including 38 health-based. 10 remain unresolved. Consider testing your tap water independently for added peace of mind.

Recommended Water Filters

Based on the contaminants detected in your area, these filter types may help improve your water quality.

Reverse Osmosis System

Highly effective at removing heavy metals, dissolved solids, and a wide range of contaminants. Recommended for homes with lead or arsenic concerns.

Targets:Lead, Copper, Arsenic, Mercury, Cadmium

Look for:NSF/ANSI 58 certified

NSF Certified Products → EPA Safe Drinking Water Guide →

UV Water Purifier

Uses ultraviolet light to neutralize bacteria, viruses, and parasites without chemicals. Ideal for homes with microbial contamination concerns.

Targets:E. coli, Coliform, Giardia, Cryptosporidium

Look for:NSF/ANSI 55 (Class A) certified

NSF Certified Products → EPA Safe Drinking Water Guide →

Always look for filters certified by NSF International for the specific contaminants you want to remove.

Water Quality in DEER CREEK, OK (74636)

What does this mean?

Violations Detail (123 total)

Lead & Copper Levels

Violation Timeline

2025(19)

2024(25)

2023(21)

2022(8)

2021(50)

How Does This Compare?

Recommended Water Filters

Reverse Osmosis System

UV Water Purifier

Nearby ZIP Codes

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