Water Quality in 73018 — Chickasha, OK
EPA data for CHICKASHA MUNICIPAL AUTHORITY
Data source: U.S. Environmental Protection Agency (EPA) SDWIS Last verified: March 16, 2026
Your Water System
ZIP code 73018 in Chickasha, Oklahoma is served by CHICKASHA MUNICIPAL AUTHORITY (EPA ID: OK1010821). This system provides water to approximately 16,036 people from surface water sources.
There are 3 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 |
|---|---|---|---|
| October 17, 2024 | Stage 2 DBP Rule | Health-based | Unresolved |
| October 17, 2024 | Stage 2 DBP Rule | Monitoring | Unresolved |
| October 17, 2024 | Stage 2 DBP Rule | Health-based | Unresolved |
| October 17, 2024 | Stage 2 DBP Rule | Monitoring | Unresolved |
| March 1, 2024 | Consumer Confidence Report Rule | Monitoring | Resolved |
| March 1, 2024 | Consumer Confidence Report Rule | Monitoring | Resolved |
| March 1, 2024 | Consumer Confidence Report Rule | Monitoring | Unresolved |
| March 1, 2024 | Consumer Confidence Report Rule | Monitoring | Resolved |
| January 1, 2024 | Revised Total Coliform Rule | Monitoring | Resolved |
| January 1, 2024 | Revised Total Coliform Rule | Monitoring | Resolved |
| January 1, 2024 | Revised Total Coliform Rule | Monitoring | Resolved |
| January 1, 2024 | Revised Total Coliform Rule | Monitoring | Unresolved |
| October 2, 2023 | Surface Water Treatment Rule | Monitoring | Resolved |
| October 2, 2023 | Surface Water Treatment Rule | Monitoring | Resolved |
| September 1, 2023 | Fecal Coliform | Health-based | Unresolved |
| September 1, 2023 | Fecal Coliform | Health-based | Unresolved |
| September 1, 2023 | Fecal Coliform | Health-based | Unresolved |
| September 1, 2023 | Fecal Coliform | Health-based | Unresolved |
| September 1, 2023 | Fecal Coliform | Health-based | Unresolved |
| September 1, 2023 | Fecal Coliform | Health-based | Unresolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for water systems serving this ZIP code:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Fecal Coliform | Microbiological | 29 | Yes |
| Revised Total Coliform Rule | Microbiological | 7 | No |
| Consumer Confidence Report Rule | Reporting | 6 | No |
| Stage 2 DBP Rule | Treatment Technique | 4 | Yes |
| E. coli | Microbiological | 2 | Yes |
| Surface Water Treatment Rule | Treatment Technique | 2 | 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 |
|---|---|---|---|
| CHICKASHA MUNICIPAL AUTHORITY | OK1010821 | 16,036 | Surface water |
| NORGE WATER AND SEWER CO., INC | OK3002601 | 890 | Surface water |
| CHICKASHA LAKE PARK | OK2002613 | 50 | 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
- 73019 (Norman) — 146 violations
- 73020 (Choctaw) — 108 violations
- 73021 (Colony) — 2 violations
- 73030 (Davis) — 42 violations
- 73085 (Yukon) — 201 violations
- 73101 (Oklahoma City) — 20 violations
Nearby Water Quality Reports
- 73004 (Amber) — 10 mi — 304 violations
- 73002 (Alex) — 12 mi — 104 violations
- 73017 (Cement) — 13 mi — 10 violations
- 73005 (Anadarko) — 17 mi — 86 violations
- 73011 (Bradley) — 17 mi — 307 violations
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for CHICKASHA MUNICIPAL AUTHORITY (OK1010821) on EPA.gov.
Frequently Asked Questions
Is the tap water in 73018 safe to drink?
Chickasha’s water system has recorded 33 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 73018’s water come from?
The primary water source for this area is surface water. CHICKASHA MUNICIPAL AUTHORITY serves approximately 16,036 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 73018 have lead in the water?
No Lead and Copper Rule sampling data is currently available in EPA records for water systems serving ZIP code 73018. If you are concerned about lead, contact your water utility or have your tap water independently tested.
What is the radon risk in 73018?
Radon zone data is not available for ZIP code 73018. The EPA recommends testing all homes for radon regardless of location, as radon levels can vary significantly even within the same neighborhood.