Water Quality in Walla Walla, WA (99323)

EPA violation data for public water systems serving ZIP code 99323.

Active Health Violations

3 health-based violations found in the past 5 years, with at least one still unresolved. Contaminant levels have exceeded federal safety limits. Consider testing your tap water independently.

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.

4,082

Population

Water Systems

151

Violations (5yr)

Health-Based

Location

Loading map...

Water Systems Serving This Area (13)

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

Resolved

1,2-Dichloropropane Monitoring

Jul 2022 Resolved

1,1,1-Trichloroethane Monitoring

Jul 2022 Resolved

Pentachlorophenol Monitoring

Jul 2022 Resolved

cis-1,2-Dichloroethylene Monitoring

Jul 2022 Resolved

p-Dichlorobenzene Monitoring

Jul 2022 Resolved

1,1-Dichloroethylene Monitoring

Jul 2022 Resolved

Dalapon Monitoring

Jul 2022 Resolved

o-Dichlorobenzene Monitoring

Jul 2022 Resolved

Picloram Monitoring

Jul 2022 Resolved

1,1,2-Trichloroethane Monitoring

Jul 2022 Resolved

DICHLOROMETHANE Monitoring

Jul 2022 Resolved

Trichloroethylene Monitoring

Jul 2022 Resolved

Ethylbenzene Monitoring

Jul 2022 Resolved

trans-1,2-Dichloroethylene Monitoring

Jul 2022 Resolved

2,4,5-TP Monitoring

Jul 2022 Resolved

1,2,4-Trichlorobenzene Monitoring

Jul 2022 Resolved

Toluene Monitoring

Jul 2022 Resolved

Dinoseb Monitoring

Jul 2022 Resolved

CHLOROBENZENE Monitoring

Jul 2022 Resolved

Tetrachloroethylene Monitoring

Jul 2022 Resolved

Vinyl chloride Monitoring

Jul 2022 Resolved

Carbon tetrachloride Monitoring

Jul 2022 Resolved

Styrene Monitoring

Jul 2022 Resolved

Benzene Monitoring

Jul 2022 Resolved

1,2-Dichloroethane Monitoring

Jul 2022 Resolved

trans-1,2-Dichloroethylene Monitoring

Jan 2022 Resolved

Styrene Monitoring

Jan 2022 Resolved

Dinoseb Monitoring

Jan 2022 Resolved

Tetrachloroethylene Monitoring

Jan 2022 Resolved

1,2,4-Trichlorobenzene Monitoring

Jan 2022 Resolved

o-Dichlorobenzene Monitoring

Jan 2022 Resolved

Toluene Monitoring

Jan 2022 Resolved

Picloram Monitoring

Jan 2022 Resolved

Benzene Monitoring

Jan 2022 Resolved

Vinyl chloride Monitoring

Jan 2022 Resolved

Ethylbenzene Monitoring

Jan 2022 Resolved

1,2-Dichloroethane Monitoring

Jan 2022 Resolved

CHLOROBENZENE Monitoring

Jan 2022 Resolved

1,1,2-Trichloroethane Monitoring

Jan 2022 Resolved

cis-1,2-Dichloroethylene Monitoring

Jan 2022 Resolved

1,1-Dichloroethylene Monitoring

Jan 2022 Resolved

1,2-Dichloropropane Monitoring

Jan 2022 Resolved

1,1,1-Trichloroethane Monitoring

Jan 2022 Resolved

p-Dichlorobenzene Monitoring

Jan 2022 Resolved

Trichloroethylene Monitoring

Jan 2022 Resolved

Carbon tetrachloride Monitoring

Jan 2022 Resolved

Dalapon Monitoring

Jan 2022 Resolved

2,4,5-TP Monitoring

Jan 2022 Resolved

Pentachlorophenol Monitoring

Jan 2022 Resolved

DICHLOROMETHANE Monitoring

Jan 2022 Resolved

1,2,4-Trichlorobenzene Monitoring

Oct 2021 Resolved

Styrene Monitoring

Oct 2021 Resolved

cis-1,2-Dichloroethylene Monitoring

Oct 2021 Resolved

Toluene Monitoring

Oct 2021 Resolved

2,4,5-TP Monitoring

Oct 2021 Resolved

o-Dichlorobenzene Monitoring

Oct 2021 Resolved

p-Dichlorobenzene Monitoring

Oct 2021 Resolved

Dinoseb Monitoring

Oct 2021 Resolved

trans-1,2-Dichloroethylene Monitoring

Oct 2021 Resolved

Picloram Monitoring

Oct 2021 Resolved

Vinyl chloride Monitoring

Oct 2021 Resolved

Dalapon Monitoring

Oct 2021 Resolved

1,1,1-Trichloroethane Monitoring

Oct 2021 Resolved

1,2-Dichloropropane Monitoring

Oct 2021 Resolved

1,1,2-Trichloroethane Monitoring

Oct 2021 Resolved

Ethylbenzene Monitoring

Oct 2021 Resolved

Trichloroethylene Monitoring

Oct 2021 Resolved

CHLOROBENZENE Monitoring

Oct 2021 Resolved

1,2-Dichloroethane Monitoring

Oct 2021 Resolved

Pentachlorophenol Monitoring

Oct 2021 Resolved

1,1-Dichloroethylene Monitoring

Oct 2021 Resolved

Benzene Monitoring

Oct 2021 Resolved

Carbon tetrachloride Monitoring

Oct 2021 Resolved

Tetrachloroethylene Monitoring

Oct 2021 Resolved

DICHLOROMETHANE Monitoring

Oct 2021 Resolved

Picloram Monitoring

Jul 2021 Resolved

Dinoseb Monitoring

Jul 2021 Resolved

Ethylbenzene Monitoring

Jul 2021 Resolved

DICHLOROMETHANE Monitoring

Jul 2021 Resolved

o-Dichlorobenzene Monitoring

Jul 2021 Resolved

Carbon tetrachloride Monitoring

Jul 2021 Resolved

1,2-Dichloroethane Monitoring

Jul 2021 Resolved

trans-1,2-Dichloroethylene Monitoring

Jul 2021 Resolved

1,1,1-Trichloroethane Monitoring

Jul 2021 Resolved

Dalapon Monitoring

Jul 2021 Resolved

Trichloroethylene Monitoring

Jul 2021 Resolved

Toluene Monitoring

Jul 2021 Resolved

Pentachlorophenol Monitoring

Jul 2021 Resolved

1,1,2-Trichloroethane Monitoring

Jul 2021 Resolved

Tetrachloroethylene Monitoring

Jul 2021 Resolved

Styrene Monitoring

Jul 2021 Resolved

cis-1,2-Dichloroethylene Monitoring

Jul 2021 Resolved

p-Dichlorobenzene Monitoring

Jul 2021 Resolved

2,4,5-TP Monitoring

Jul 2021 Resolved

1,2,4-Trichlorobenzene Monitoring

Jul 2021 Resolved

1,1-Dichloroethylene Monitoring

Jul 2021 Resolved

CHLOROBENZENE Monitoring

Jul 2021 Resolved

Vinyl chloride Monitoring

Jul 2021 Resolved

1,2-Dichloropropane Monitoring

Jul 2021 Resolved

Benzene Monitoring

Jul 2021 Resolved

Columbia Elementary School

Groundwater 610 people served

0 violations

Arlenes Addition

Groundwater 480 people served

0 violations

Lead tested: 2.2 ppb (limit: 15 ppb) ✓

Columbia High School

Groundwater 287 people served

0 violations

Sun Harbor Water District #3

Groundwater 187 people served

8 violations (5yr)

Levey Park

Groundwater 181 people served

0 violations

Burbank Heights

Groundwater 177 people served

3 violations (5yr)

Lead tested: 2.8 ppb (limit: 15 ppb) ✓

Taggares Fruit Co

3 health-based

Groundwater 152 people served

23 violations (5yr) · 3 health-based · All resolved

Lead tested: 0 ppb (limit: 15 ppb) ✓

First Baptist Church Of Burbank

Groundwater 105 people served

0 violations

Burbank Library Water System

All resolved

Groundwater 38 people served

1 violation (5yr) · All resolved

Mini-Pearl Water System

Groundwater 28 people served

0 violations

Columbia School

Groundwater 20 people served

0 violations

Contaminants Found

NitrateHealth-Based

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

6 violations

All resolved

PicloramMonitoring

8 violations

All resolved

DalaponMonitoring

8 violations

All resolved

DinosebMonitoring

8 violations

All resolved

2,4,5-TPMonitoring

8 violations

All resolved

PentachlorophenolMonitoring

8 violations

All resolved

FluorideMonitoring

5 violations

All resolved

1,2-DichloropropaneMonitoring

4 violations

All resolved

1,1,1-TrichloroethaneMonitoring

4 violations

All resolved

cis-1,2-DichloroethyleneMonitoring

4 violations

All resolved

p-DichlorobenzeneMonitoring

4 violations

All resolved

1,1-DichloroethyleneMonitoring

4 violations

All resolved

o-DichlorobenzeneMonitoring

4 violations

All resolved

1,1,2-TrichloroethaneMonitoring

4 violations

All resolved

DICHLOROMETHANEMonitoring

4 violations

All resolved

TrichloroethyleneMonitoring

4 violations

All resolved

EthylbenzeneMonitoring

4 violations

All resolved

trans-1,2-DichloroethyleneMonitoring

4 violations

All resolved

1,2,4-TrichlorobenzeneMonitoring

4 violations

All resolved

TolueneMonitoring

4 violations

All resolved

CHLOROBENZENEMonitoring

4 violations

All resolved

TetrachloroethyleneMonitoring

4 violations

All resolved

Vinyl chlorideMonitoring

4 violations

All resolved

Carbon tetrachlorideMonitoring

4 violations

All resolved

StyreneMonitoring

4 violations

All resolved

BenzeneMonitoring

4 violations

All resolved

1,2-DichloroethaneMonitoring

4 violations

All resolved

TTHMMonitoring

1 violation

All resolved

Lead and Copper RuleMonitoring

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

1 violation

Has active

Total Haloacetic Acids (HAA5)Monitoring

1 violation

All resolved

Consumer Confidence RuleMonitoring

Annual water quality report delivery requirement.

1 violation

Has active

ToxapheneMonitoring

1 violation

All resolved

BHC-GAMMAMonitoring

1 violation

All resolved

HexachlorocyclopentadieneMonitoring

1 violation

All resolved

Benzo(a)pyreneMonitoring

1 violation

All resolved

SimazineMonitoring

1 violation

All resolved

ChlordaneMonitoring

1 violation

All resolved

EndrinMonitoring

1 violation

All resolved

MethoxychlorMonitoring

1 violation

All resolved

LASSOMonitoring

1 violation

All resolved

AtrazineMonitoring

1 violation

All resolved

Di(2-ethylhexyl) phthalateMonitoring

1 violation

All resolved

Heptachlor epoxideMonitoring

1 violation

All resolved

HEXACHLOROBENZENEMonitoring

1 violation

All resolved

Di(2-ethylhexyl) adipateMonitoring

1 violation

All resolved

HeptachlorMonitoring

1 violation

All resolved

Revised Total Coliform RuleMonitoring

Missed testing deadlines — not a detection of bacteria.

1 violation

All resolved

Lead & Copper Levels

Lead (Pb)

Within limit

2.2 ppb measured Action level: 15 ppb

Sampled: Jan 2024

How Does This Compare?

Walla Walla (99323) has more violations than 98% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 151.

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.

Water Quality in Walla Walla, WA (99323)

Active Health Violations

Location

Water Systems Serving This Area (13)

Walla Walla Water Division

College Place Water Dept

Columbia Elementary School

Arlenes Addition

Columbia High School

Sun Harbor Water District #3

Levey Park

Burbank Heights

Taggares Fruit Co

First Baptist Church Of Burbank

Burbank Library Water System

Mini-Pearl Water System

Columbia School

Contaminants Found

Lead & Copper Levels

Lead (Pb)

How Does This Compare?

Recommended Water Filters

Reverse Osmosis System

Nearby ZIP Codes

Check Another ZIP Code