Water Quality in Loon Lake, WA (99148)
EPA violation data for public water systems serving ZIP code 99148.
No Health-Based Violations
None of the 39 water systems serving this ZIP have exceeded federal contaminant limits in the past 5 years. There are16 monitoring/reporting violations (missed testing deadlines), all resolved.
Better than 75% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
2,794
Population
39
Water Systems
16
Violations (5yr)
0
Health-Based
Location
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Water Systems Serving This Area (39)
Stevens Co Pud - Suncrest
All resolvedStevens Co Pud - Deer Lake
Stevens Co Pud - Loon Lake
All resolvedStevens Co Pud - Waitts Lake
Stevens Co Pud - Long Lake
Stevens Co Pud - Loon Lake Sw
Stevens Co Pud - Clayton
Stevens Co Pud - Valley
Stevens Co Pud - Spokane Lake Park
Stevens Co Pud - West Shore
Stevens Co Pud/Lakeridge
Stevens Co Pud - Riverside
Stevens Co Pud - Addy
Stevens Co Pud - Halfmoon Ranchos
All resolvedStevens Co Pud - Jump Off Joe
Stevens Co Pud - Chattaroy Spring W
Stevens Co Pud - Mission Ridge
All resolvedStevens Co. Pud/Julius Terrace
Loon Lake Acres
All resolvedShore Acres & Wuesthoff Water Syst
Wanakiwin
Tiger Tracts
Loon Lake School
Stevens Co Pud - Echo Estates
Stevens Co Pud - Panorama Acres
Stevens Co Pud/Sunset Bay
Stevens Co Pud - River Park Estates
Christensen Water System.
Stevens Co Pud - Dolomite
Stevens Co Pud - Denison
Haneys Resort
Stevens Co Pud - Stonelodge Estates
Pinelow Park
Lakeside Church Of Nazarene
Solar Pines Water Assn
All resolvedSunrise Point Resort
Kaniksu Ranch Water System
All resolvedFoster Water System
St Joe Hunting Lodge
Contaminants Found
Missed testing deadlines — not a detection of bacteria.
At high levels, nitrate can cause blue baby syndrome in infants.
Annual water quality report delivery requirement.
A naturally occurring element that can cause cancer and other health effects at high levels.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jan 2025
How Does This Compare?
Loon Lake (99148) has more violations than 75% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 16, 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.