Water Quality in Stillwater, OK (74085)

EPA violation data for public water systems serving ZIP code 74085.

Based on EPA compliance data. Not a substitute for an official water quality report from your utility.

2,426

Population

6

Water Systems

45

Violations (5yr)

29

Health-Based

Location

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Water Systems Serving This Area (6)

Stillwater Utilities Authority

6 health-based
Surface water 53,000 people served
6 violations (5yr) · 6 health-based · All resolved
Lead tested: 2.1 ppb (limit: 15 ppb)

Stillwater

Purchased surface water 20,000 people served
0 violations

Yale

Groundwater 1,652 people served
0 violations

Yale

9 health-based
Purchased surface water 1,227 people served
20 violations (5yr) · 9 health-based · All resolved
Lead tested: 6.7 ppb (limit: 15 ppb)

Payne Co Rwd #4

14 health-based
Purchased surface water 820 people served
19 violations (5yr) · 14 health-based
Lead tested: 0 ppb (limit: 15 ppb)

Judge Roy Bean

Groundwater 10 people served
0 violations

Contaminants Found

TTHMHealth-Based
16 violations
All resolved
Total Haloacetic Acids (HAA5)Health-Based
5 violations
All resolved
CARBON, TOTALHealth-Based
4 violations
All resolved
LEAD AND COPPER RULE REVISIONSHealth-Based
4 violations
All resolved
Surface Water Treatment RuleHealth-Based
1 violation
All resolved
Consumer Confidence RuleMonitoring

Annual water quality report delivery requirement.

2 violations
Has active
ChloramineMonitoring
1 violation
All resolved
Revised Total Coliform RuleMonitoring

Missed testing deadlines — not a detection of bacteria.

1 violation
All resolved

Lead & Copper Levels

Lead (Pb)

Within limit
2.1 ppb measured Action level: 15 ppb

Sampled: Jan 2025

How Does This Compare?

Stillwater (74085) has more violations than 90% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 45.

Fewer violations 90th percentile More violations

Recommended Water Filters

Based on health-based violations detected in your area, these filter types are commonly used to address similar contaminants. Consult your water utility's Consumer Confidence Report for the most current data.

Reverse Osmosis System

Highly effective at removing heavy metals, dissolved solids, and a wide range of contaminants. Recommended for homes with lead or arsenic concerns.

Targets:Lead, Copper, Arsenic, Mercury, Cadmium

Look for:NSF/ANSI 58 certified

Activated Carbon Filter

Excellent for removing chlorine, chloramine, and disinfection byproducts like THMs and HAAs. Available as pitcher filters, countertop, or under-sink units.

Targets:THMs, HAAs, Chlorine, Chloramine, Taste & Odor

Look for:NSF/ANSI 42 & 53 certified

Always look for filters certified by NSF International for the specific contaminants you want to remove. This is general educational information, not an endorsement of any specific product.

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