Water Quality in Nampa, ID (83686)
EPA violation data for public water systems serving ZIP code 83686.
Active Health Violations
13 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 94% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
60,993
Population
40
Water Systems
69
Violations (5yr)
13
Health-Based
Location
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Water Systems Serving This Area (40)
Nampa City Of
All resolvedCaldwell City Of
Middleton City Of
Deer Flat National Wildlife Refuge Lower
Belle Aire Acres 2
All resolvedRolling Hills Estates Water Company
Sunnyridge 3 Water Corp
Indian Village
9 health-basedLakeview Hills Water Users Association
Shamrock Villa Water Assn
Apache Heights Subdivision (2)
All resolvedSky Ranch Estates
M & T Water Corp
1 health-basedFredericks Mobile Kitchen
Deer Flat National Wildlife Refuge - Hq
All resolvedMangum Heights Subd
Karney Lakes Club
Sunnyridge Property Owners
Lakeridge Second Subd
All resolvedSkyline Water Assn
Lakeshore Market
All resolvedLindenwood Water Assn
Locust Subd
1 health-basedShipman Place Subd
1 health-basedSunnyridge I Subd
1 health-basedSunnyridge Subd 2
All resolvedCanyon County Solid Waste
Aurora Subd
All resolvedDublin Meadows
Lewis Addition 1
Care A Lot
S And W Seed Company
Freeman Development
Caldwell Boulevard Plaza
Sunrise At Toma Ridge
Mi Tiendita
Discovery House
Town Hall Market
Lolys Daycare
Elder Subd
Contaminants Found
A naturally occurring element that can cause cancer and other health effects at high levels.
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.
Used to disinfect water — generally safe at regulated levels.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jul 2025
Copper (Cu)
Exceeds limitSampled: Jan 2022
How Does This Compare?
Nampa (83686) has more violations than 94% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 69.
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
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.