Water Quality in Ponca City, OK (74643)

EPA violation data for public water systems serving ZIP code 74643.

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

512

Population

3

Water Systems

196

Violations (5yr)

1

Health-Based

Location

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Water Systems Serving This Area (3)

Ponca City Mun Water

All resolved
Surface water 27,155 people served
2 violations (5yr) · All resolved
Lead tested: 0 ppb (limit: 15 ppb) ✓

Lamont

1 health-based
Groundwater under influence of surface water 417 people served
194 violations (5yr) · 1 health-based
Lead tested: 0 ppb (limit: 15 ppb) ✓

Western Gas Resources

Purchased groundwater 11 people served
0 violations

Contaminants Found

LEAD AND COPPER RULE REVISIONSHealth-Based
2 violations
All resolved
Interim Enhanced Surface Water Treatment RuleMonitoring
35 violations
All resolved
Public NoticeMonitoring
22 violations
Has active
Revised Total Coliform RuleMonitoring

Missed testing deadlines — not a detection of bacteria.

10 violations
All resolved
Total Haloacetic Acids (HAA5)Monitoring
9 violations
All resolved
TTHMMonitoring
9 violations
All resolved
ChlorineMonitoring

Used to disinfect water — generally safe at regulated levels.

8 violations
All resolved
trans-1,2-DichloroethyleneMonitoring
4 violations
All resolved
1,1,2-TrichloroethaneMonitoring
4 violations
All resolved
o-DichlorobenzeneMonitoring
4 violations
All resolved
TetrachloroethyleneMonitoring
4 violations
All resolved
p-DichlorobenzeneMonitoring
4 violations
All resolved
BenzeneMonitoring
4 violations
All resolved
cis-1,2-DichloroethyleneMonitoring
4 violations
All resolved
TrichloroethyleneMonitoring
4 violations
All resolved
Carbon tetrachlorideMonitoring
4 violations
All resolved
DICHLOROMETHANEMonitoring
4 violations
All resolved
Vinyl chlorideMonitoring
4 violations
All resolved
1,1-DichloroethyleneMonitoring
4 violations
All resolved
1,2,4-TrichlorobenzeneMonitoring
4 violations
All resolved
1,1,1-TrichloroethaneMonitoring
4 violations
All resolved
1,2-DichloroethaneMonitoring
4 violations
All resolved
StyreneMonitoring
4 violations
All resolved
EthylbenzeneMonitoring
4 violations
All resolved
TolueneMonitoring
4 violations
All resolved
1,2-DichloropropaneMonitoring
4 violations
All resolved
Xylenes, TotalMonitoring
4 violations
All resolved
CHLOROBENZENEMonitoring
4 violations
All resolved
Consumer Confidence RuleMonitoring

Annual water quality report delivery requirement.

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
Nitrate-NitriteMonitoring
1 violation
All resolved

Lead & Copper Levels

Lead (Pb)

Within limit
0 ppb measured Action level: 15 ppb

Sampled: Jul 2025

How Does This Compare?

Ponca City (74643) has more violations than 99% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 196.

Fewer violations 99th 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

NSF Certified Products → EPA Safe Drinking Water Guide →

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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