D
36

Poor Water Quality

Bennington, OK 74723

Bryan County · Population served: 14,897 · Data updated March 2026

Water Systems Serving This Area

🏔
BRYAN CO. RWS & SWMD #2
Surface water · Pop. 6,270
PWSID: OK1010604
🌊
BRYAN CO. RWD #7
Groundwater · Pop. 302
PWSID: OK2000705
🏔
BRYAN COUNTY RURAL WATER DISTRICT #5
Surface water · Pop. 8,325
PWSID: OK3000704

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
5.6
15 ppb 1 ppb Warning

PFAS / Forever Chemicals

1 detected All below limits
CompoundLevelEPA MCLHealth GuidelineStatus
PFPeA5.0 pptNo standardUnregulated

Violation History (Last 5 Years)

131Total (5yr)
36Health-Based
91Major

Water Quality Summary

Understanding Your Water in Bennington

Tap water quality in Bennington, Oklahoma (74723) receives an overall grade of D (Poor) with a score of 36 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 23 points below the Oklahoma state average of 59. Compared to the national average (75), this area scores significantly lower. The area is served by 3 water systems providing water to approximately 14,897 people, using surface water and groundwater sources. Testing has found elevated levels of Lead that warrant attention. PFAS testing detected 1 compound, all currently below EPA limits. Over the past 5 years, water systems here have accumulated 131 violations, including 36 health-based violations.

Your Score 36/100 D
vs State 23 pts below Oklahoma avg (59)
vs National 39 pts below national avg (75)

What a Grade D Means

A score of 36/100 signals poor water quality in Bennington, 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.

Surface water: sourced from rivers, lakes, or reservoirs
Groundwater: drawn from underground aquifers via wells

Health Information

What These Contaminants Mean for You

⚠️

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 Bennington, Oklahoma receives a grade of D (Poor) with a score of 36/100. 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 74723 is served by 3 water systems using surface water, groundwater sources, providing water to approximately 14,897 people. Multiple source types mean your water may come from a blend of surface and underground sources.

Lead was detected at 5.6 ppb in Bennington, Oklahoma. While this is below the EPA action level of 15 ppb, it exceeds the health guideline of 1 ppb recommended by health organizations. Consider a certified lead filter, especially if you have young children.

1 PFAS compound were detected in water serving Bennington, Oklahoma, but all are currently below EPA limits. While levels are within regulatory standards, some health organizations recommend minimizing any PFAS exposure. Activated carbon or reverse osmosis filters can reduce PFAS levels.

Water systems serving Bennington, Oklahoma have received 131 violations in the last 5 years, including 36 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.

Based on detected contaminants (lead, PFAS), residents in Bennington, Oklahoma should consider: Reverse osmosis (RO) system — most effective for PFAS, lead, and other contaminants. Always look for filters with NSF/ANSI certification for the specific contaminants you want to remove.

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