Water Quality in 73020 — Choctaw, OK
EPA data for CHOCTAW
Data source: U.S. Environmental Protection Agency (EPA) SDWIS Last verified: March 16, 2026
Your Water System
ZIP code 73020 in Choctaw, Oklahoma is served by CHOCTAW (EPA ID: OK2005510). This system provides water to approximately 3,926 people from groundwater sources.
There are 2 community water systems serving this area.
Lead & Copper in Your Water
No Lead & Copper Rule sampling data available for systems serving this ZIP code.
Violation Summary
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| July 11, 2025 | Total Coliform | Monitoring | Unresolved |
| June 1, 2025 | Revised Total Coliform Rule | Monitoring | Resolved |
| April 1, 2025 | Contaminant 2005 | Monitoring | Resolved |
| April 1, 2025 | Contaminant 2010 | Monitoring | Resolved |
| April 1, 2025 | Contaminant 2015 | Monitoring | Resolved |
| April 1, 2025 | Contaminant 2020 | Monitoring | Resolved |
| April 1, 2025 | Contaminant 2031 | Monitoring | Resolved |
| April 1, 2025 | Contaminant 2032 | Monitoring | Resolved |
| April 1, 2025 | Contaminant 2033 | Monitoring | Resolved |
| April 1, 2025 | Contaminant 2034 | Monitoring | Resolved |
| April 1, 2025 | Contaminant 2035 | Monitoring | Resolved |
| April 1, 2025 | Contaminant 2036 | Monitoring | Resolved |
| April 1, 2025 | Contaminant 2037 | Monitoring | Resolved |
| April 1, 2025 | Atrazine | Monitoring | Resolved |
| April 1, 2025 | Contaminant 2040 | Monitoring | Resolved |
| April 1, 2025 | Contaminant 2041 | Monitoring | Resolved |
| April 1, 2025 | Contaminant 2042 | Monitoring | Resolved |
| April 1, 2025 | Contaminant 2046 | Monitoring | Resolved |
| April 1, 2025 | Benzene | Monitoring | Resolved |
| April 1, 2025 | Contaminant 2051 | Monitoring | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for water systems serving this ZIP code:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Total Coliform | Microbiological | 9 | No |
| Contaminant 2005 | Other | 8 | No |
| Contaminant 2010 | Other | 8 | No |
| Contaminant 2015 | Other | 8 | No |
| Contaminant 2065 | Other | 8 | No |
| Contaminant 2067 | Other | 8 | No |
| Contaminant 2274 | Other | 8 | No |
| Revised Total Coliform Rule | Microbiological | 7 | No |
| Contaminant 2034 | Other | 6 | No |
| Contaminant 2036 | Other | 6 | No |
| Contaminant 2046 | Other | 6 | No |
| Contaminant 2042 | Other | 4 | No |
| Surface Water Treatment Rule | Treatment Technique | 2 | No |
| Consumer Confidence Report Rule | Reporting | 1 | No |
| Contaminant 2020 | Other | 1 | No |
Need help with your water quality?
Call to get connected with a local professional in your area.
Call (855) 384-4856This is a free service. You will be connected with an independent service provider.
Water Systems Serving This Area
| System Name | EPA ID | Population | Source |
|---|---|---|---|
| CHOCTAW | OK2005510 | 3,926 | Groundwater |
| CHOCTAW ESTATES, LLC | OK2005539 | 105 | Groundwater |
What You Can Do
- Review your annual Consumer Confidence Report (CCR) — Your utility publishes this each July
- Test your home’s water — Especially if you have older plumbing (pre-1986) that may contain lead
- Stay informed — Bookmark this page to check for updates on your water quality
Need help with water testing or filtration?
Call to get connected with a local professional in your area.
Call (855) 384-4856This is a free service. You will be connected with an independent service provider.
Other Water Quality Reports in Oklahoma
- 73002 (Alex) — 104 violations
- 73003 (Edmond) — 84 violations
- 73004 (Amber) — 304 violations
- 73005 (Anadarko) — 86 violations
- 73006 (Apache) — 84 violations
- 73007 (Arcadia) — 31 violations
- 73008 (Bethany) — 25 violations
- 73009 (Binger) — 17 violations
- 73010 (Blanchard) — 39 violations
- 73011 (Bradley) — 307 violations
- 73014 (Calumet) — 57 violations
- 73015 (Carnegie) — 6 violations
- 73016 (Cashion) — 4 violations
- 73017 (Cement) — 10 violations
- 73018 (Chickasha) — 50 violations
- 73019 (Norman) — 146 violations
- 73021 (Colony) — 2 violations
- 73030 (Davis) — 42 violations
- 73085 (Yukon) — 201 violations
- 73101 (Oklahoma City) — 20 violations
Nearby Water Quality Reports
- 73007 (Arcadia) — 13 mi — 31 violations
- 73101 (Oklahoma City) — 16 mi — 20 violations
- 73003 (Edmond) — 19 mi — 84 violations
- 73019 (Norman) — 21 mi — 146 violations
- 73008 (Bethany) — 21 mi — 25 violations
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for CHOCTAW (OK2005510) on EPA.gov.
Frequently Asked Questions
Is the tap water in 73020 safe to drink?
Based on EPA records, the water system serving ZIP code 73020 has only monitoring/reporting violations, which are procedural in nature. However, individual home conditions (old pipes, well water) can affect quality.
Where does 73020’s water come from?
The primary water source for this area is groundwater. CHOCTAW serves approximately 3,926 people.
How can I get my water tested?
Contact your local water utility for a free water quality report, or hire a certified lab for independent home water testing. The EPA recommends testing annually if you use a private well.
Does 73020 have lead in the water?
No Lead and Copper Rule sampling data is currently available in EPA records for water systems serving ZIP code 73020. If you are concerned about lead, contact your water utility or have your tap water independently tested.
What is the radon risk in 73020?
Radon zone data is not available for ZIP code 73020. The EPA recommends testing all homes for radon regardless of location, as radon levels can vary significantly even within the same neighborhood.