Water Quality in Stillwater, OK (74030)

EPA violation data for public water systems serving ZIP code 74030.

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

3,014

Population

9

Water Systems

22

Violations (5yr)

7

Health-Based

Location

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Water Systems Serving This Area (9)

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

Drumright

All resolved
Groundwater 2,876 people served
1 violation (5yr) · All resolved
Lead tested: 2.8 ppb (limit: 15 ppb)

Olive School

1 health-based
Groundwater 465 people served
13 violations (5yr) · 1 health-based
Lead tested: 0 ppb (limit: 15 ppb)

Country Club Heights

Groundwater 150 people served
0 violations

Happy Corner Quick Stop

All resolved
Groundwater 100 people served
2 violations (5yr) · All resolved

Arco-Drumright

Groundwater 26 people served
0 violations

Creek County Rwd #11

Purchased groundwater 24 people served
0 violations

Quimbys Kountry Store

Groundwater 10 people served
0 violations

Contaminants Found

CARBON, TOTALHealth-Based
4 violations
All resolved
LEAD AND COPPER RULE REVISIONSHealth-Based
2 violations
Has active
Surface Water Treatment RuleHealth-Based
1 violation
All resolved
ChlorineMonitoring

Used to disinfect water — generally safe at regulated levels.

5 violations
All resolved
Revised Total Coliform RuleMonitoring

Missed testing deadlines — not a detection of bacteria.

3 violations
All resolved
Lead and Copper RuleMonitoring

Lead and copper testing requirement. Lead exposure can cause developmental harm in children.

2 violations
All resolved
E. COLIMonitoring
2 violations
Has active
Consumer Confidence RuleMonitoring

Annual water quality report delivery requirement.

1 violation
All resolved
Nitrate-NitriteMonitoring
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 (74030) has more violations than 80% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 22.

Fewer violations 80th 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

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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