Water Quality in Seattle, WA (98074)

EPA violation data for public water systems serving ZIP code 98074.

No Health-Based Violations

None of the 14 water systems serving this ZIP have exceeded federal contaminant limits in the past 5 years. There are8 monitoring/reporting violations (missed testing deadlines), all resolved.

Better than 62% of US ZIP codes.

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

30,761

Population

14

Water Systems

8

Violations (5yr)

0

Health-Based

Location

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Water Systems Serving This Area (14)

Seattle Public Utilities

Surface water 1,091,904 people served
0 violations
Lead tested: 3.5 ppb (limit: 15 ppb)

Bellevue City Of

Purchased surface water 317,330 people served
0 violations

Kent Water Department

All resolved
Purchased surface water 166,421 people served
1 violation (5yr) · All resolved
Lead tested: 0 ppb (limit: 15 ppb)

Redmond Water System City Of

Purchased surface water 163,335 people served
0 violations
Lead tested: 2 ppb (limit: 15 ppb)

Lakehaven Water And Sewer District

All resolved
Purchased surface water 118,273 people served
1 violation (5yr) · All resolved

Highline Water District

Purchased surface water 115,950 people served
0 violations

Auburn City Of

Groundwater 113,095 people served
0 violations
Lead tested: 2.2 ppb (limit: 15 ppb)

Renton City Of

Groundwater 107,119 people served
0 violations

Northshore Utility District

Purchased surface water 105,105 people served
0 violations

Ne Sammamish Sewer & Water District

All resolved
Groundwater 8,516 people served
1 violation (5yr) · All resolved

Mayfield Rv Park

All resolved
Groundwater 165 people served
3 violations (5yr) · All resolved
Lead tested: 1.5 ppb (limit: 15 ppb)

Terrace Square Apts

All resolved
Groundwater 45 people served
2 violations (5yr) · All resolved
Lead tested: 0 ppb (limit: 15 ppb)

Mountain Meadows Farm Llp

Groundwater 25 people served
0 violations

Harkness Water System

Groundwater 1 people served
0 violations

Contaminants Found

Consumer Confidence RuleMonitoring

Annual water quality report delivery requirement.

3 violations
All resolved
Revised Total Coliform RuleMonitoring

Missed testing deadlines — not a detection of bacteria.

2 violations
All resolved
NitrateMonitoring

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

1 violation
All resolved
TTHMMonitoring
1 violation
All resolved
Total Haloacetic Acids (HAA5)Monitoring
1 violation
All resolved

Lead & Copper Levels

Lead (Pb)

Within limit
3.5 ppb measured Action level: 15 ppb

Sampled: Jan 2024

How Does This Compare?

Seattle (98074) has more violations than 62% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 8, most of which are monitoring/reporting issues.

Fewer violations 62th percentile More violations

Water Filter Recommendations

No contaminant issues detected. For general protection, a basic carbon filter removes common impurities like chlorine and sediment. Look for NSF/ANSI 42 certified products.

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