C
55

Fair Water Quality

Ryan, OK 73565

Jefferson County · Population served: 9,198 · Data updated March 2026

Water Systems Serving This Area

🏔
JEFFERSON CO CONS RWD #1
Surface water · Pop. 8,398
PWSID: OK3003401
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RYAN UTILITIES AUTHORITY
Surface water · Pop. 800
PWSID: OK3003405

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
3.7
15 ppb 1 ppb Warning

PFAS / Forever Chemicals

1 detected All below limits
CompoundLevelEPA MCLHealth GuidelineStatus
PFBA11.1 pptNo standard500 pptUnregulated

Violation History (Last 5 Years)

191Total (5yr)
190Health-Based
0Major

Water Quality Summary

Understanding Your Water in Ryan

Tap water quality in Ryan, Oklahoma (73565) receives an overall grade of C (Fair) with a score of 55 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is roughly in line with the Oklahoma state average of 59. Compared to the national average (75), this area scores significantly lower. The area is served by 2 water systems providing water to approximately 9,198 people, using surface water 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 191 violations, including 190 health-based violations.

Your Score 55/100 C
vs State 4 pts below Oklahoma avg (59)
vs National 20 pts below national avg (75)

What a Grade C Means

A score of 55/100 indicates fair water quality in Ryan, OK. While the water meets minimum federal standards, there are noteworthy concerns — either elevated contaminant levels approaching regulatory limits, a moderate violation history, or both. Residents may want to review specific contaminant data and consider targeted filtration, especially for sensitive groups like children and pregnant women.

Surface water: sourced from rivers, lakes, or reservoirs

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 Ryan, Oklahoma receives a grade of C (Fair) with a score of 55/100. While it generally meets minimum federal standards, there are some areas of concern including violation history or elevated contaminant levels. Sensitive populations (children, pregnant women, elderly) may want to consider additional filtration.

ZIP code 73565 is served by 2 water systems using surface water sources, providing water to approximately 9,198 people. Surface water systems are more susceptible to contamination from agricultural runoff, industrial discharge, and weather events, but typically undergo more extensive treatment including filtration and disinfection.

Lead was detected at 3.7 ppb in Ryan, 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 Ryan, 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 Ryan, Oklahoma have received 191 violations in the last 5 years, including 190 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 Ryan, 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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