Water Quality in The Dalles, OR (97040)
EPA violation data for public water systems serving ZIP code 97040.
No Health-Based Violations
None of the 7 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.
1,842
Population
7
Water Systems
16
Violations (5yr)
0
Health-Based
Location
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Water Systems Serving This Area (7)
The Dalles, City Of
All resolvedColumbia River Gorge Rv Resort
Verne Root Orchard
All resolvedGreat Am.Outdoor Adventure Rc
Odot P&R Memaloose St Pk
Columbia River Gorge Preserve
Rowena Dell Wtr System
Contaminants Found
Missed testing deadlines — not a detection of bacteria.
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
At high levels, nitrate can cause blue baby syndrome in infants.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jan 2023
How Does This Compare?
The Dalles (97040) 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.