Water Quality in Nampa, ID (83607)
EPA violation data for public water systems serving ZIP code 83607.
Active Health Violations
30 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.
35,491
Population
53
Water Systems
138
Violations (5yr)
30
Health-Based
Location
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Water Systems Serving This Area (53)
Nampa City Of
All resolvedCaldwell City Of
Middleton City Of
Payette City Of
Fruitland City Of
5 health-basedCaldwell Housing Authority
Vallivue Middle School
West Canyon Elementary School
El Rancho Heights
Woodview Acres Property Owners
All resolvedKarcher Ranchette Water Corp
Faith Journey Church
Somerset West Water Corp
Shortstop Inc
All resolvedOwyhee Village Subd Water Assn Inc
Castle Creek Water Hauler
Owyhee County Fairgrounds
Drake Subd
13 health-basedPar Estates Homeowners Assn
All resolvedGem State Academy
All resolvedCountry Corners Campground & Rv Park
All resolvedCountry Club Subdivisions Water Assn
Black Canyon Stinker
1 health-basedCamp Cascade
All resolvedPleasant View Manor
All resolvedSand Hollow Country Stores And Cafe
1 health-basedIdaho Youth Ranch Hands Of Promise
5 health-basedMaverick Subd Lasher Construction
2 health-basedSymms Fruit Ranch Inc
1 health-basedStecher Water Users Assn
Stecher Mutual Water Company
Rich Subd
All resolvedCaldwell Campground #1
All resolvedThe Orchard House
All resolvedVanal Heights Sweet Water
All resolvedWildrose Estates
Mountainland Apples
All resolvedCaldwell Campground #2
All resolvedDundas Works
All resolvedNotus Stinker 60
All resolvedPrecept Wine
1 health-basedKoenig Vineyards
Ranchette Estates 2
Bish Rv Park
Elmcrest Subd
Macs Coffee Cabin
Palrang Subd Water Assn
Country Club
Central Canyon Elementary School
Little Munsters Daycare And Preschool
Black Canyon Motel C/O Stinker 45
1 health-basedFairways Homeowners Association
East Canyon Elementary School
All resolvedContaminants Found
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.
Similar to nitrate — harmful to infants at high levels.
A naturally occurring element that can cause cancer and other health effects at high levels.
Used to disinfect water — generally safe at regulated levels.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jul 2025
Copper (Cu)
Exceeds limitSampled: Jul 2023
How Does This Compare?
Nampa (83607) has more violations than 98% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 138.
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
Activated Carbon Filter
Excellent for removing chlorine, chloramine, and disinfection byproducts like THMs and HAAs. Available as pitcher filters, countertop, or under-sink units.
Targets:THMs, HAAs, Chlorine, Chloramine, Taste & Odor
Look for:NSF/ANSI 42 & 53 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.