Water Quality in Kennewick, WA (99336)
EPA violation data for public water systems serving ZIP code 99336.
Active Health Violations
14 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 86% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
50,735
Population
32
Water Systems
38
Violations (5yr)
14
Health-Based
Location
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Water Systems Serving This Area (32)
Kennewick City Of
All resolvedRichland City Of
West Richland City Of
Summit View Water System
Hartmans Log Cabin Resort Inc
All resolvedAmazon Data Hermiston Pdx080
1 health-basedAmazon Data Umatilla Pdx063
1 health-basedSandvik Special Metals
Welchs
Camp Wallowa %Blue Mt Cnl Bsa
Disabled American Vet. Chapter #46
Pasco Heights Domestic Water Assn
All resolvedKid - Elliot Lake
Sundance Improvement Association
5 health-basedColumbia Park
Kiona Village
Harmons Mobile Home Court
Simplot Feeders Ltd
4 health-basedTouchet Valley Baptist Camp
Grandview Farms Pasco - Dodd Rd
3 health-basedShanes Water System
Columbia Park - Campground
Kerley Chemical Co.
Benton-Franklin County Fair #1
Laguna Vista Improvement Assoc
Rolling Hills Ranchettes
Trade Winds Cafe
Lampson Well
Goecia Water System
Doty, Robert E.
Cardenas, Juan Water System
Agrium - Finley Area
Contaminants Found
Missed testing deadlines — not a detection of bacteria.
At high levels, nitrate can cause blue baby syndrome in infants.
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
Annual water quality report delivery requirement.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jan 2025
Copper (Cu)
Exceeds limitSampled: Jan 2024
How Does This Compare?
Kennewick (99336) has more violations than 86% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 38.
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
UV Water Purifier
Uses ultraviolet light to neutralize bacteria, viruses, and parasites without chemicals. Ideal for homes with microbial contamination concerns.
Targets:E. coli, Coliform, Giardia, Cryptosporidium
Look for:NSF/ANSI 55 (Class A) certified
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.