Water Quality in Norman, OK (73170)

EPA violation data for public water systems serving ZIP code 73170.

Past Health-Based Violations

5 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 96 monitoring/reporting violations.

More violations than 96% of US ZIP codes.

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

41,458

Population

10

Water Systems

101

Violations (5yr)

5

Health-Based

Location

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Water Systems Serving This Area (10)

Norman Utilities Authority

1 health-based
Surface water 104,868 people served
2 violations (5yr) · 1 health-based · All resolved
Lead tested: 0.55 ppb (limit: 15 ppb) ✓

Moore Public Works Authority

4 health-based
Purchased surface water 55,083 people served
92 violations (5yr) · 4 health-based · All resolved
Lead tested: 0 ppb (limit: 15 ppb) ✓

Oklahoma University

All resolved
Purchased surface water 34,000 people served
5 violations (5yr) · All resolved
Lead tested: 1.6 ppb (limit: 15 ppb) ✓

Orr Family Farm

Groundwater 350 people served
0 violations

Villa Teresa

Groundwater 125 people served
0 violations

Cedar Lake Tp

Purchased surface water 100 people served
0 violations

Baptist Childrens Home

Groundwater 70 people served
0 violations

Jrs Pub-N-Grill

All resolved
Groundwater 30 people served
2 violations (5yr) · All resolved

Studio 824

Groundwater 30 people served
0 violations

Pit Stop Express

Groundwater 25 people served
0 violations

Contaminants Found

LEAD AND COPPER RULE REVISIONSHealth-Based
4 violations
All resolved
ArsenicHealth-Based

A naturally occurring element that can cause cancer and other health effects at high levels.

3 violations
All resolved
Heptachlor epoxideMonitoring
2 violations
All resolved
PicloramMonitoring
2 violations
All resolved
HeptachlorMonitoring
2 violations
All resolved
HEXACHLOROBENZENEMonitoring
2 violations
All resolved
ChlordaneMonitoring
2 violations
All resolved
Di(2-ethylhexyl) adipateMonitoring
2 violations
All resolved
Total Polychlorinated Biphenyls (PCB)Monitoring
2 violations
All resolved
ToxapheneMonitoring
2 violations
All resolved
HexachlorocyclopentadieneMonitoring
2 violations
All resolved
DinosebMonitoring
2 violations
All resolved
DalaponMonitoring
2 violations
All resolved
ETHYLENE DIBROMIDEMonitoring
2 violations
All resolved
OXAMYLMonitoring
2 violations
All resolved
EndothallMonitoring
2 violations
All resolved
Gross Alpha, Excl. Radon and UMonitoring
2 violations
All resolved
BHC-GAMMAMonitoring
2 violations
All resolved
LASSOMonitoring
2 violations
All resolved
Di(2-ethylhexyl) phthalateMonitoring
2 violations
All resolved
2,4-DMonitoring
2 violations
All resolved
GlyphosateMonitoring
2 violations
All resolved
CarbofuranMonitoring
2 violations
All resolved
Combined Radium (-226 and -228)Monitoring
2 violations
All resolved
Gross Beta Particle ActivityMonitoring
2 violations
All resolved
AtrazineMonitoring
2 violations
All resolved
SimazineMonitoring
2 violations
All resolved
1,2-DIBROMO-3-CHLOROPROPANEMonitoring
2 violations
All resolved
2,4,5-TPMonitoring
2 violations
All resolved
Benzo(a)pyreneMonitoring
2 violations
All resolved
DiquatMonitoring
2 violations
All resolved
MethoxychlorMonitoring
2 violations
All resolved
Combined UraniumMonitoring
2 violations
All resolved
PentachlorophenolMonitoring
2 violations
All resolved
EndrinMonitoring
2 violations
All resolved
Total Haloacetic Acids (HAA5)Monitoring
2 violations
All resolved
TTHMMonitoring
2 violations
All resolved
Revised Total Coliform RuleMonitoring

Missed testing deadlines — not a detection of bacteria.

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

Used to disinfect water — generally safe at regulated levels.

1 violation
All resolved

Lead & Copper Levels

Lead (Pb)

Within limit
0.55 ppb measured Action level: 15 ppb

Sampled: Jan 2025

How Does This Compare?

Norman (73170) has more violations than 96% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 101.

Fewer violations 96th 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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