D
45

US Water Score: D

Altus, OK 73521

Jackson County · Population served: 18,717 · Data updated July 2026

Service-area evidence: EPA service-area records associate the listed system with this ZIP. Boundaries may still overlap or change.

Water Systems Serving This Area

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ALTUS
Surface water · Pop. 18,717
PWSID: OK1011501

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
0.0
15 ppb 1 ppb Passed

PFAS / Forever Chemicals

2 detected Below comparison values

UCMR5 occurrence results are screening information, not a finding of regulatory compliance or noncompliance. PFAS rules and compliance dates are evolving.

CompoundLevelEPA MCLHealth GuidelineStatus
PFBA5.5 pptNo standard500 pptNo federal MCL shown
PFHxS3.3 ppt10 ppt10 pptBelow comparison value

Violation History (Last 5 Years)

30Total (5yr)
20Health-Based
6Major

Water Quality Summary

Understanding Your Water in Altus

Tap water quality in Altus, Oklahoma (73521) receives an overall grade of D (Elevated record-based concern) with a score of 45 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 50 points below the Oklahoma state average of 95. Compared to the national average (75), this area scores significantly lower. The area is served by Altus, a surface water system providing water to approximately 18,717 people. PFAS testing detected 2 compounds, all below the EPA final MCL values used for comparison. Over the past 5 years, water systems here have accumulated 30 violations, including 20 health-based violations.

Your Score 45/100 D
vs State 50 pts below Oklahoma avg (95)
vs National 30 pts below national avg (75)

What a Grade D Means

A score of 45/100 flags significant system-level concerns in the US Water Score model for Altus, OK. These may include violations, contaminant levels near or above regulatory limits, or PFAS detections. Review the detailed records, your utility's Consumer Confidence Report, and qualified local guidance.

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 Altus, Oklahoma receives a grade of D (Elevated record-based concern) with a score of 45/100. 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 73521 is served by 1 water system using surface water sources, providing water to approximately 18,717 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 levels in Altus, Oklahoma are 0.0 ppb, which is at or below the health guideline of 1 ppb. This is a positive result, though periodic testing is still recommended.

2 PFAS compounds were detected in water serving Altus, Oklahoma, with reported values below the EPA final MCL values used by this site. This comparison is informational: federal compliance timelines and the status of some PFAS standards are still evolving. Activated carbon or reverse osmosis filters can reduce some PFAS when appropriately certified and maintained.

Water systems serving Altus, Oklahoma have received 30 violations in the last 5 years, including 20 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 (PFAS), residents in Altus, 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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