D
46

Poor Water Quality

Deer Creek, OK 74636

Grant County · Population served: 147 · Data updated March 2026

Water Systems Serving This Area

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DEER CREEK
Groundwater · Pop. 147
PWSID: OK2002711

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
0.8
15 ppb 1 ppb Passed

Violation History (Last 5 Years)

83Total (5yr)
35Health-Based
40Major

Water Quality Summary

Understanding Your Water in Deer Creek

Tap water quality in Deer Creek, Oklahoma (74636) receives an overall grade of D (Poor) with a score of 46 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 13 points below the Oklahoma state average of 59. Compared to the national average (75), this area scores significantly lower. The area is served by Deer Creek, a groundwater system providing water to approximately 147 people. Over the past 5 years, water systems here have accumulated 83 violations, including 35 health-based violations.

Your Score 46/100 D
vs State 13 pts below Oklahoma avg (59)
vs National 29 pts below national avg (75)

What a Grade D Means

A score of 46/100 signals poor water quality in Deer Creek, OK. Significant issues have been identified, which may include multiple violations, contaminant levels near or above regulatory limits, or PFAS contamination. We recommend reviewing the detailed contaminant data below, considering a certified water filter, and checking your utility's Consumer Confidence Report for the latest information.

Groundwater: drawn from underground aquifers via wells

Health Information

What These Contaminants Mean for You

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Lead in Your Water

Lead is a toxic metal that can leach from aging pipes and plumbing fixtures.

Health Effects

Even low levels of lead exposure can cause developmental delays in children, kidney damage, and cardiovascular effects in adults. The EPA action level is 15 ppb, but health experts recommend no safe level of lead in drinking water.

Common Sources

Lead enters water primarily through corrosion of lead service lines, lead solder, and brass fixtures — especially in homes built before 1986.

What You Can Do

If lead is detected above 1 ppb, consider using a certified lead-removal filter (NSF/ANSI 53) for drinking and cooking water. Run cold water for 30 seconds before use if water has been sitting in pipes.

Common Questions

Frequently Asked Questions

Tap water in Deer Creek, Oklahoma receives a grade of D (Poor) with a score of 46/100. This indicates significant water quality concerns based on violation history, contaminant levels, or enforcement actions. We recommend reviewing the specific contaminants detected below and considering a certified water filter.

ZIP code 74636 is served by 1 water system using groundwater sources, providing water to approximately 147 people. Groundwater is naturally filtered through rock and soil, often requiring less treatment. However, it can be vulnerable to contamination from underground sources like naturally occurring arsenic, nitrates from agriculture, or PFAS from industrial sites.

Lead levels in Deer Creek, Oklahoma are 0.8 ppb, which is at or below the health guideline of 1 ppb. This is a positive result, though periodic testing is still recommended.

No PFAS ("forever chemicals") were detected in water systems serving Deer Creek, Oklahoma during the most recent EPA monitoring period (UCMR5). However, not all water systems have been tested for all PFAS compounds, and new contamination can occur over time.

Water systems serving Deer Creek, Oklahoma have received 83 violations in the last 5 years, including 35 health-based violations. Violations can range from paperwork issues (monitoring & reporting) to serious health-based violations where contaminant levels exceeded safe limits. Review the violation details above for specifics.

Water in Deer Creek, Oklahoma shows no major contaminant concerns based on available data. A basic carbon filter can improve taste and reduce chlorine. For extra peace of mind, an NSF-certified pitcher filter or faucet-mount filter provides an affordable layer of protection.

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