Water Quality in 74801 — Shawnee, OK
EPA data for SHAWNEE MUNICIPAL AUTHORITY
Data source: U.S. Environmental Protection Agency (EPA) SDWIS Last verified: March 16, 2026
Your Water System
ZIP code 74801 in Shawnee, Oklahoma is served by SHAWNEE MUNICIPAL AUTHORITY (EPA ID: OK1020504). This system provides water to approximately 29,990 people from surface water sources.
There are 5 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 1, 2025 | Chlorite | Health-based | Unresolved |
| July 1, 2025 | Total Trihalomethanes (TTHM) | Health-based | Unresolved |
| July 1, 2025 | Total Trihalomethanes (TTHM) | Health-based | Unresolved |
| July 1, 2025 | Haloacetic Acids (HAA5) | Health-based | Unresolved |
| July 1, 2025 | Haloacetic Acids (HAA5) | Health-based | Unresolved |
| April 1, 2025 | Chlorite | Health-based | Unresolved |
| April 1, 2025 | Haloacetic Acids (HAA5) | Monitoring | Resolved |
| April 1, 2025 | Total Trihalomethanes (TTHM) | Health-based | Unresolved |
| April 1, 2025 | Total Trihalomethanes (TTHM) | Health-based | Unresolved |
| April 1, 2025 | Haloacetic Acids (HAA5) | Health-based | Unresolved |
| April 1, 2025 | Haloacetic Acids (HAA5) | Health-based | Unresolved |
| January 1, 2025 | Chlorite | Health-based | Unresolved |
| January 1, 2025 | Chlorite | Health-based | Unresolved |
| October 1, 2024 | Contaminant 2010 | Monitoring | Unresolved |
| September 1, 2024 | Chlorite | Monitoring | Resolved |
| September 1, 2024 | Chlorite | Monitoring | Unresolved |
| September 1, 2024 | Chlorite | Monitoring | Resolved |
| September 1, 2024 | Chlorite | Monitoring | Resolved |
| September 1, 2024 | Chlorite | Monitoring | Resolved |
| September 1, 2024 | Chlorite | Monitoring | Unresolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for water systems serving this ZIP code:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Chlorite | Disinfection Byproducts | 13 | Yes |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 12 | Yes |
| Contaminant 2005 | Other | 4 | No |
| Contaminant 2010 | Other | 4 | No |
| Contaminant 2015 | Other | 4 | No |
| Contaminant 2065 | Other | 4 | No |
| Contaminant 2067 | Other | 4 | No |
| Contaminant 2274 | Other | 4 | No |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 4 | Yes |
| Contaminant 2020 | Other | 3 | No |
| Contaminant 2031 | Other | 3 | No |
| Contaminant 2032 | Other | 3 | No |
| Contaminant 2033 | Other | 3 | No |
| Contaminant 2034 | Other | 3 | No |
| Contaminant 2035 | Other | 3 | 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 |
|---|---|---|---|
| SHAWNEE MUNICIPAL AUTHORITY | OK1020504 | 29,990 | Surface water |
| POTTAWATOMIE CO DEVELOPMENT AUTH | OK3006303 | 1,200 | Surface water |
| POTTAWATOMIE COUNTY RWD #3 | OK1020807 | 560 | Surface water |
| POTTAWATOMIE CO. RWD #3 (DALE PLANT) | OK3006314 | 313 | Surface water |
| STEELMAN ESTATES | OK2006374 | 45 | Groundwater |
What You Can Do
- Request your water system’s Consumer Confidence Report (CCR) — Your utility is required to publish this annually
- Consider a home water test — Independent testing can reveal issues in your specific plumbing
- Install a certified water filter — NSF-certified filters can address specific contaminants
- Contact your water provider — Ask about current treatment and any ongoing remediation
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
- 73020 (Choctaw) — 108 violations
- 73021 (Colony) — 2 violations
- 73030 (Davis) — 42 violations
- 73085 (Yukon) — 201 violations
Nearby Water Quality Reports
- 74818 (Seminole) — 17 mi
- 73020 (Choctaw) — 21 mi — 108 violations
- 73019 (Norman) — 28 mi — 146 violations
- 73007 (Arcadia) — 32 mi — 31 violations
- 73101 (Oklahoma City) — 37 mi — 20 violations
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for SHAWNEE MUNICIPAL AUTHORITY (OK1020504) on EPA.gov.
Frequently Asked Questions
Is the tap water in 74801 safe to drink?
Shawnee’s water system has recorded 20 health-based violations in the past 5 years. While the system is required to treat water to meet federal standards, you may want to consider additional precautions such as a certified water filter.
Where does 74801’s water come from?
The primary water source for this area is surface water. SHAWNEE MUNICIPAL AUTHORITY serves approximately 29,990 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 74801 have lead in the water?
No Lead and Copper Rule sampling data is currently available in EPA records for water systems serving ZIP code 74801. If you are concerned about lead, contact your water utility or have your tap water independently tested.
What is the radon risk in 74801?
Radon zone data is not available for ZIP code 74801. The EPA recommends testing all homes for radon regardless of location, as radon levels can vary significantly even within the same neighborhood.