Water Quality in Okanogan, WA (98840)
EPA violation data for public water systems serving ZIP code 98840.
No Health-Based Violations
None of the 18 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.
4,892
Population
18
Water Systems
8
Violations (5yr)
0
Health-Based
Location
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Water Systems Serving This Area (18)
Okanogan Water Department City Of
Okanogan County Fair Water System
All resolvedDuck Lake Water Association
White Water System
M J Trailer Ranch
Seatons Grove Community Ulid 2
T Bar M Trailer Ranch
Our Lady Of Valley Catholic Church
All resolvedGks Country Mrkt - Dba Flying B #9
Ranch Drive Inn
Chief Joseph Orchard
Jack Pot Food Mart
Mazama Snow Camp
Don'S Mobile Home Court
Flochs Mobile Home Park
Coulee Dam
Elmer City
Spring Coulee Heights Water System
Contaminants Found
At high levels, nitrate can cause blue baby syndrome in infants.
Missed testing deadlines — not a detection of bacteria.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jan 2025
How Does This Compare?
Okanogan (98840) 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.
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.