Water Quality in Oak Creek, CO: 40 Violations — Grade C
Grade C · Score 68/100 · 2 water systems · Updated 2026-05-03
Oak Creek's water has moderate compliance issues. Residents in affected areas should consider filtration.
Data: EPA Safe Drinking Water Information System (SDWIS) Last verified: 2026-05-03
Oak Creek, CO has 40 violations in the EPA compliance history — breakdown below.
Water Quality by ZIP Code in Oak Creek
Water quality varies across Oak Creek's 1 ZIP codes. Check your specific ZIP for detailed contaminant data.
| ZIP Code | Grade | Score | Violations | Health | |
|---|---|---|---|---|---|
| 80467 | C | 68 | 40 | 12 | View report → |
Violation Trend
EPA violations recorded for water systems serving Oak Creek.
Water Quality Overview
Oak Creek, Colorado receives a water quality grade of C with an overall score of 68 out of 100, based on EPA compliance data from the Safe Drinking Water Information System (SDWIS).
The 2 water systems serving Oak Creek have accumulated 40 EPA violations, including 12 health-based violations. These violations are tracked across 1 ZIP codes serving approximately 1,750 people.
What Grade C Means
A grade of C indicates moderate compliance issues. Oak Creek's water systems have some violations that warrant attention. While the water may still be safe for most people, residents in affected ZIP codes should consider additional testing or filtration.
Lead Levels
The average 90th percentile lead level across Oak Creek water systems is 0.0008 mg/L — within EPA limits. No ZIP codes exceed the EPA lead action level.
With 51% of homes built before 1986, Oak Creek has a higher-than-average risk of lead from older plumbing. Lead solder was banned in 1986, and homes built before this date may have lead in pipes, solder joints, or fixtures.
Radon Risk
Oak Creek is in EPA Radon Zone 2 (Moderate risk). Testing is recommended, especially for homes with basements or ground-level living spaces.
Water Systems Serving Oak Creek
Oak Creek is served by 2 community water systems regulated under the Safe Drinking Water Act. These systems collectively serve approximately 1,750 people across 1 ZIP codes.
Each water system is identified by a Public Water System ID (PWSID) and is required to:
- Test for over 90 regulated contaminants on a regular schedule
- Report results to the EPA and state regulators
- Issue an annual Consumer Confidence Report (CCR) to all customers
- Take corrective action when violations occur
The EPA has taken 10 enforcement actions against water systems serving Oak Creek. Enforcement actions range from informal compliance assistance to formal orders and penalties.
How to Check Your Water in Oak Creek
Enter your ZIP code on ZipCheckup to see your specific water system data, including contaminant levels, violation history, and safety scores
Request your CCR — your water utility must provide an annual Consumer Confidence Report with detailed test results for all monitored contaminants
Get a home test — certified kits cost $20–$50 and test for lead, bacteria, and common contaminants. Professional lab tests ($150–$400) cover a broader panel
Consider filtration — NSF-certified filters can remove specific contaminants. Reverse osmosis removes the broadest range; activated carbon is effective for chlorine and many organics
Check for advisories — monitor your local utility website and local news for boil water advisories or system alerts
Contaminants Detected in Oak Creek Water Systems
The following contaminants have been detected or caused violations across Oak Creek's water systems:
| Contaminant | Category | MCL | Violations | ZIPs Affected | Health-Based |
|---|---|---|---|---|---|
| Lead and Copper Rule | Treatment Technique | N/A | 12 | 1 | No |
| E. coli | Microbiological | N/A | 11 | 1 | Yes |
| Fecal Coliform | Microbiological | N/A | 5 | 1 | Yes |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 0.08 mg/L | 3 | 1 | No |
| Stage 2 DBP Rule | Treatment Technique | N/A | 2 | 1 | Yes |
| Stage 1 DBP Rule | Treatment Technique | N/A | 1 | 1 | No |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 0.06 mg/L | 1 | 1 | No |
| Revised Total Coliform Rule | Microbiological | N/A | 1 | 1 | No |
| Gross Beta | Radionuclides | 50 pCi/L | 1 | 1 | No |
MCL = Maximum Contaminant Level (EPA enforceable standard). Health-based violations indicate levels that may pose direct health risks.
Violation Trend Over Time
Year-by-year EPA violations recorded for water systems serving Oak Creek:
| Year | Total Violations | Health-Based |
|---|---|---|
| 2023 | 1 | 1 |
| 2024 | 8 | 8 |
| 2025 | 3 | 3 |
Violations have increased from 1 in 2023 to 3 in 2025. This trend warrants monitoring.
EPA Enforcement History
The EPA and state regulators have taken 10 enforcement actions against water systems serving Oak Creek. Recent actions:
| Date | Action Type |
|---|---|
| 2025-10-22 | State Informal Action |
| 2025-10-22 | State Informal Enforcement |
| 2025-10-16 | State Informal Action |
| 2025-10-16 | State Informal Enforcement |
| 2025-10-13 | State Order Extension |
| 2025-10-07 | State Order Extension |
| 2025-10-01 | State Order Extension |
| 2025-09-23 | State Informal Action |
| 2025-08-14 | State Informal Action |
| 2025-08-01 | State Order Extension |
Enforcement actions range from informal compliance assistance to formal orders and penalties. The most recent action was on 2025-10-22.
Oak Creek vs. Nearby Colorado Cities
How Oak Creek's water quality compares to similar cities in Colorado:
| City | Grade | Violations | Systems | Population |
|---|---|---|---|---|
| Oak Creek | C | 40 | 2 | 1,750 |
| Parachute | C | 6 | 2 | 1,745 |
| Norwood | C | 10 | 1 | 1,700 |
| Ouray | C | 14 | 2 | 1,660 |
Common Questions About Oak Creek Water
These are the most common questions residents search for about water quality in Oak Creek, Colorado:
Is Oak Creek water hard or soft? Water hardness varies by source. Oak Creek's 2 water systems use multiple sources. Check your ZIP code report for specific hardness data.
Can I drink Oak Creek tap water? Oak Creek's water receives a grade of C (68/100). There are 12 health-based violations — consider filtration.
What is the best water filter for Oak Creek? A NSF/ANSI 53-certified filter for lead removal is a good general choice. See our Water Filter Matcher for personalized recommendations.
Oak Creek vs. Colorado Average
Understanding how Oak Creek compares to the broader Colorado average helps contextualize your local water quality. Factors like water source, treatment methods, and infrastructure age all contribute to differences between cities in the same state.
To see how individual neighborhoods compare, check the ZIP code reports below — water quality can vary significantly even within Oak Creek.
ZIP Codes in Oak Creek
Oak Creek spans 1 ZIP code. The ZIP with the lowest water quality score is 80467. Each ZIP code has its own water quality profile based on the specific water system serving that area. Check each ZIP code for detailed contaminant data, violation history, and system information.
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
- Enforcement: EPA ECHO database
- Filter recommendations: NSF/ANSI certified products
Updated daily.