TapWaterMap

ID / Nampa

ID · Tap water records

Nampa tap water, in plain English

Here is what the EPA's own data shows about tap water in Nampa. According to EPA SDWIS data retrieved June 2026, Nampa is served by 42 active community water systems, together reported to serve about 104,711 people.

As of June 2026, EPA records show 1,234 violations across the community water system(s) serving Nampa, going back to the earliest EPA record. 89 of these are classified by the EPA as health-based (a contaminant recorded above the limit the EPA tracks); the rest are monitoring or reporting violations. Each is listed by system below, with its status.

What the EPA has on record, by system

Nampa City Of

100,200 served · groundwater · PWSID ID3140080

Shalimar Subd

370 served · groundwater · PWSID ID3140107

Belle Aire Acres 2

350 served · groundwater · PWSID ID3140009

Evergreen Mobile Park

284 served · groundwater · PWSID ID3140035

Covert Water Users Association

250 served · groundwater · PWSID ID3140024

Rolling Hills Estates Water Company

250 served · groundwater · PWSID ID3140100

Sunnyridge 3 Water Corp

240 served · groundwater · PWSID ID3140121

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Indian Village

225 served · groundwater · PWSID ID3140193

Lakeview Hills Water Users Association

160 served · groundwater · PWSID ID3140062

Camelot Water Assn Inc

157 served · groundwater · PWSID ID3140014

Clark Theurer Water Assn

155 served · groundwater · PWSID ID3140140

Leisure Heights Homeowners Association

142 served · groundwater · PWSID ID3140063

Ok Water Assn

140 served · groundwater · PWSID ID3140085

Shamrock Villa Water Assn

130 served · groundwater · PWSID ID3140108

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Apache Heights Subdivision (2)

110 served · groundwater · PWSID ID3140005

Sky Ranch Estates

104 served · groundwater · PWSID ID3140221

Karcher Acres Subd

100 served · groundwater · PWSID ID3140048

M & T Water Corp

100 served · groundwater · PWSID ID3140097

Northside Estates Hoa Inc

100 served · groundwater · PWSID ID3140229

Verde Hills Water Users Assn Inc

95 served · groundwater · PWSID ID3140134

Westview Shervik Subd

78 served · groundwater · PWSID ID3140137

Mangum Heights Subd

75 served · groundwater · PWSID ID3140068

Horizon Ridge Subdivision

75 served · groundwater · PWSID ID3140281

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Valley View Water

57 served · groundwater · PWSID ID3140130

Burnie Subd

55 served · groundwater · PWSID ID3140011

M And M Mountain View Subd Em2

54 served · groundwater · PWSID ID3140067

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Sunnyridge Property Owners

53 served · groundwater · PWSID ID3140122

Dahl Subd

51 served · groundwater · PWSID ID3140025

Lakeridge Second Subd

50 served · groundwater · PWSID ID3140056

Skyline Water Assn

50 served · groundwater · PWSID ID3140111

Northstar Subdivision

50 served · groundwater · PWSID ID3140278

Lindenwood Water Assn

48 served · groundwater · PWSID ID3140010

Silver Spur Subdivision

44 served · groundwater · PWSID ID3140233

Locust Subd

42 served · groundwater · PWSID ID3140066

Shipman Place Subd

40 served · groundwater · PWSID ID3140109

Scenic Properties Water Assn Inc

40 served · groundwater · PWSID ID4080040

Sunnyridge I Subd

35 served · groundwater · PWSID ID3140119

Country Meadows Subd

35 served · groundwater · PWSID ID3140200

Sunnyridge Subd 2

34 served · groundwater · PWSID ID3140120

Aurora Subd

30 served · groundwater · PWSID ID3140007

Twin Bridges Subd

28 served · groundwater · PWSID ID3140125

Rivervine Subdivision

25 served · groundwater · PWSID ID4010245

What this means

A health-based violation means a contaminant was recorded above the limit the EPA tracks for it. A monitoring or reporting violation means a required test or report was late or missed — not that a contaminant was measured above a limit. “Returned to compliance” means the EPA recorded the issue as resolved.

This page summarizes the EPA's own records and does not assess whether your water is safe to drink. For the most current details, you can verify every record directly with the EPA, and contact your water system with questions.

Source: U.S. EPA Envirofacts SDWIS, retrieved June 2026. Records cover the EPA's full reporting history for these systems. Verify at EPA ECHO.