Water Quality in Nespelem, WA (99155)
EPA violation data for public water systems serving ZIP code 99155.
Active Health Violations
29 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.
1,009
Population
41
Water Systems
201
Violations (5yr)
29
Health-Based
Location
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Water Systems Serving This Area (41)
Nespelem Water Dept
Colville Indian Agency
Nespelem Agency
1 health-basedKeller Community
Omak Hud Trailer Court
Omak Hud
4 health-basedKeller
5 health-basedRocky River Road Community Site
4 health-basedColville Indian Agency
Colville Indian Agency
Inchelium Townsite
Colville - Albert Orr Water System
Colville Malott Community Wt Sys
Rainbow Beach Resort
2 health-basedColville Confederated Tribes
Inchelium Sub-Agency
Seatons Grove
2 health-basedMalott
5 health-basedSan Poil
All resolvedLog House Drive-In
Dessautel Community
Bia-Inchelium Sub-Agcy Wtr Stm
Colville Confederated Tribes
Fort Okanogan Interpretive Center
1 health-basedInchelium Sub-Agency
Colville-Twin Lakes Youth Camp
Twin Lakes Hud
5 health-basedLog House Drive In
Rebecca Lake
Colville-Twin Lakes Hud Water Sys
Meteor Hud Cws
Disautel
San Poil
East Omak
Nespelem Community
Reynolds Resort
Inchelium Community
Mc Coy Lake Housing Site
Sda - Thallheimer Water Assn
Twin Lakes Youth Camp
North Twin Lake Tribal Youth C
Contaminants Found
Missed testing deadlines — not a detection of bacteria.
Annual water quality report delivery requirement.
Used to disinfect water — generally safe at regulated levels.
At high levels, nitrate can cause blue baby syndrome in infants.
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
A naturally occurring element that can cause cancer and other health effects at high levels.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jul 2025
How Does This Compare?
Nespelem (99155) has more violations than 98% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 201.
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.