Water Quality in Lawton, OK (73559)

EPA violation data for public water systems serving ZIP code 73559.

Past Health-Based Violations

20 health-based violations were found in the past 5 years, meaning contaminant levels exceeded federal safety limits. All have since been resolved. There are also 7 monitoring/reporting violations.

More violations than 83% of US ZIP codes.

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

345

Population

6

Water Systems

27

Violations (5yr)

20

Health-Based

Location

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Water Systems Serving This Area (6)

Lawton

All resolved
Surface water 92,757 people served
3 violations (5yr) · All resolved
Lead tested: 2 ppb (limit: 15 ppb)

Fort Sill Hqusafacfs

Purchased surface water 23,000 people served
0 violations
Lead tested: 1.16 ppb (limit: 15 ppb)

Mountain Park

Groundwater 473 people served
0 violations

Mountain Park Public Works Auth

20 health-based
Purchased surface water 473 people served
24 violations (5yr) · 20 health-based · All resolved
Lead tested: 3.3 ppb (limit: 15 ppb)

Great Plains State Park

Surface water 100 people served
0 violations

Great Plains State Park

Purchased surface water 100 people served
0 violations

Contaminants Found

TTHMHealth-Based
20 violations
All resolved
LEAD AND COPPER RULE REVISIONSHealth-Based
2 violations
All resolved
Revised Total Coliform RuleHealth-Based

Missed testing deadlines — not a detection of bacteria.

1 violation
All resolved
Total Haloacetic Acids (HAA5)Monitoring
1 violation
All resolved
Surface Water Treatment RuleMonitoring
1 violation
All resolved
Consumer Confidence RuleMonitoring

Annual water quality report delivery requirement.

1 violation
All resolved
Lead and Copper RuleMonitoring

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

1 violation
All resolved

Lead & Copper Levels

Lead (Pb)

Within limit
3.3 ppb measured Action level: 15 ppb

Sampled: Jul 2025

How Does This Compare?

Lawton (73559) has more violations than 83% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 27.

Fewer violations 83th 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

UV Water Purifier

Uses ultraviolet light to neutralize bacteria, viruses, and parasites without chemicals. Ideal for homes with microbial contamination concerns.

Targets:E. coli, Coliform, Giardia, Cryptosporidium

Look for:NSF/ANSI 55 (Class A) 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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