Water Quality in Walla Walla, WA (99324)

EPA violation data for public water systems serving ZIP code 99324.

Past Health-Based Violations

7 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 132 monitoring/reporting violations.

More violations than 98% of US ZIP codes.

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

10,137

Population

10

Water Systems

139

Violations (5yr)

7

Health-Based

Location

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Water Systems Serving This Area (10)

Walla Walla Water Division

All resolved
Surface water 42,959 people served
16 violations (5yr) · All resolved

College Place Water Dept

All resolved
Groundwater 8,147 people served
100 violations (5yr) · All resolved

Artesian Water District 8

All resolved
Groundwater 302 people served
2 violations (5yr) · All resolved
Lead tested: 1.5 ppb (limit: 15 ppb) ✓

Wallula Water District

All resolved
Groundwater 200 people served
7 violations (5yr) · All resolved

Christ Community Fellowship

Groundwater 115 people served
0 violations

Westbourne Acres

All resolved
Groundwater 94 people served
5 violations (5yr) · All resolved

Rosario Beach Marine Laboratory

Groundwater 85 people served
0 violations

Broetje Wallula Ranch

Groundwater 52 people served
0 violations

Touchet Sda Church

Groundwater 49 people served
0 violations

Fpl Energy Vansycle

7 health-based
Groundwater 34 people served
9 violations (5yr) · 7 health-based · All resolved
Lead tested: 0.5 ppb (limit: 15 ppb) ✓

Contaminants Found

NitrateHealth-Based

At high levels, nitrate can cause blue baby syndrome in infants.

9 violations
All resolved
2,4,5-TPMonitoring
7 violations
All resolved
DinosebMonitoring
7 violations
All resolved
PicloramMonitoring
7 violations
All resolved
DalaponMonitoring
7 violations
All resolved
PentachlorophenolMonitoring
7 violations
All resolved
FluorideMonitoring
6 violations
All resolved
Vinyl chlorideMonitoring
4 violations
All resolved
TrichloroethyleneMonitoring
4 violations
All resolved
StyreneMonitoring
4 violations
All resolved
TolueneMonitoring
4 violations
All resolved
p-DichlorobenzeneMonitoring
4 violations
All resolved
TetrachloroethyleneMonitoring
4 violations
All resolved
1,2-DichloropropaneMonitoring
4 violations
All resolved
1,2,4-TrichlorobenzeneMonitoring
4 violations
All resolved
1,1-DichloroethyleneMonitoring
4 violations
All resolved
1,2-DichloroethaneMonitoring
4 violations
All resolved
Carbon tetrachlorideMonitoring
4 violations
All resolved
1,1,2-TrichloroethaneMonitoring
4 violations
All resolved
trans-1,2-DichloroethyleneMonitoring
4 violations
All resolved
cis-1,2-DichloroethyleneMonitoring
4 violations
All resolved
1,1,1-TrichloroethaneMonitoring
4 violations
All resolved
BenzeneMonitoring
4 violations
All resolved
o-DichlorobenzeneMonitoring
4 violations
All resolved
EthylbenzeneMonitoring
4 violations
All resolved
CHLOROBENZENEMonitoring
4 violations
All resolved
DICHLOROMETHANEMonitoring
4 violations
All resolved
Consumer Confidence RuleMonitoring

Annual water quality report delivery requirement.

3 violations
All resolved
ArsenicMonitoring

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

2 violations
All resolved
Revised Total Coliform RuleMonitoring

Missed testing deadlines — not a detection of bacteria.

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
0.5 ppb measured Action level: 15 ppb

Sampled: Jan 2024

How Does This Compare?

Walla Walla (99324) has more violations than 98% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 139.

Fewer violations 98th 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

One of the few filtration methods effective at removing nitrates and nitrites. Essential for households with infants.

Targets:Nitrate, Nitrite, Dissolved Solids

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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