Tap Truth EPA drinking water records, in plain English

County drinking water records

Canyon County, ID drinking water systems

63 community water systems serve Canyon County, ID, reporting 201,780 people served in all.

14 of them (22%) had at least one health-based violation in the last 10 years. 41 systems still have one unresolved.

63 rely mainly on groundwater, counting water bought from other systems.

Their lead service line inventories list 50 lead lines, 29 galvanized lines that must be replaced and 10,426 lines of unknown material.

20 more systems are placed in Canyon County, ID by the county their records name because they have no service area map that lines up with their own records, so they are listed apart and not counted here.

Community water systems
63
People served, sum of each system's own figure
201,780
Systems with a health-based violation, last 10 years
14
Systems with one unresolved
41
Lead service lines in inventories
50

Water systems serving Canyon County

63 systems

People served is each system's own figure for its whole service area. Violation counts cover the last 10 years of EPA records.

System Serves People served Main source Health-based violations, 10 years Unresolved Lead lines
City of Nampa Nampa 100,200 Groundwater 0 0 0
City of Caldwell Caldwell 74,000 Groundwater 0 1 50
City of Middleton Middleton 13,190 Groundwater 0 1 0
City of Parma Parma 2,250 Groundwater 0 1 0
City of Wilder Wilder 1,690 Groundwater 0 1 0
Caldwell Housing Authority Outside cities and towns 1,100 Groundwater 0 1 0
City of Greenleaf Greenleaf 846 Groundwater 0 0 0
City of Melba Melba 648 Groundwater 0 1 0
City of Notus Notus 539 Groundwater 0 1 0
Shalimar Subd Outside cities and towns 370 Groundwater 0 1 0
Belle Aire Acres 2 Outside cities and towns 350 Groundwater 0 2 0
Lansing Meadows Outside cities and towns 320 Groundwater 1 2 0
El Rancho Heights Outside cities and towns 300 Groundwater 0 1 0
Lakeys Cafe and Trailer Park Outside cities and towns 300 Groundwater 0 2 0
Covert Water Users Association Outside cities and towns 250 Groundwater 0 1 0
Rolling Hills Estates Water Company Outside cities and towns 250 Groundwater 0 1 0
Woodview Acres Property Owners Outside cities and towns 245 Groundwater 0 0 0
Sunnyridge 3 Water Corp Outside cities and towns 240 Groundwater 0 0 0
Sunlight Terrace Outside cities and towns 234 Groundwater 0 0 0
Indian Village Outside cities and towns 225 Groundwater 10 3 0
Karcher Ranchette Water Corp Outside cities and towns 213 Groundwater 0 2 0
Somerset West Water Corp Outside cities and towns 203 Groundwater 0 1 0
Owyhee Village Subd Water Assn Inc Caldwell 200 Groundwater 0 1 0
Timberstone HOA Outside cities and towns 170 Groundwater 0 1 0
Lakeview Hills Water Users Association Outside cities and towns 160 Groundwater 0 1 0
Camelot Water Assn Inc Nampa 157 Groundwater 0 2 0
Clark Theurer Water Assn Outside cities and towns 155 Groundwater 0 2 0
Drake Subd Outside cities and towns 150 Groundwater 24 3 0
Leisure Heights Homeowners Association Outside cities and towns 142 Groundwater 0 0 0
Rio Vista Water Company 3 Outside cities and towns 140 Groundwater 0 1 0
Par Estates Homeowners Assn Outside cities and towns 140 Groundwater 0 0 0
Shamrock Villa Water Assn Nampa 130 Groundwater 0 0 0
Country Club Subdivisions Water Assn Outside cities and towns 120 Groundwater 0 0 0
Sky Ranch Estates Outside cities and towns 104 Groundwater 1 1 0
Karcher Acres Subd Outside cities and towns 100 Groundwater 1 1 0
Lakeview Water Company 1 Outside cities and towns 100 Groundwater 4 2 0
M & T Water Corp Outside cities and towns 100 Groundwater 1 0 0
Northside Estates HOA Inc Outside cities and towns 100 Groundwater 0 0 0
Purple Sage Community Outside cities and towns 98 Groundwater 1 11 0
East Lizard Butte Water Corp Outside cities and towns 95 Groundwater 0 2 0
Verde Hills Water Users Assn Inc Outside cities and towns 95 Groundwater 0 1 0
Maverick Subd Lasher Construction Outside cities and towns 90 Groundwater 2 1 0
Roswell Water Users Coop Company Outside cities and towns 90 Groundwater 0 3 0
Kimpton Acres Third Subd Outside cities and towns 88 Groundwater 0 5 0
Westview Shervik Subd Outside cities and towns 78 Groundwater 1 0 0
Decoy Inn and RV Park Outside cities and towns 75 Groundwater 0 0 0
Mangum Heights Subd Outside cities and towns 75 Groundwater 0 1 0
Northridge Estates Water Assn Outside cities and towns 75 Groundwater 0 0 0
D and S Purple Sage Ranchettes Outside cities and towns 70 Groundwater 0 1 0
Stecher Water Users Assn Outside cities and towns 70 Groundwater 0 0 0
West River Outside cities and towns 65 Groundwater 0 0 0
Stecher Mutual Water Company Outside cities and towns 62 Groundwater 0 0 0
Rich Subd Outside cities and towns 60 Groundwater 1 3 0
Burnie Subd Outside cities and towns 55 Groundwater 0 0 0
Dahl Subd Outside cities and towns 51 Groundwater 0 3 0
Lakeridge Second Subd Outside cities and towns 50 Groundwater 0 0 0
Skyline Water Assn Outside cities and towns 50 Groundwater 0 0 0
Vanal Heights Well Assn Outside cities and towns 48 Groundwater 7 1 0
Silver Spur Subdivision Outside cities and towns 44 Groundwater 0 0 0
H and L Park Outside cities and towns 43 Groundwater 0 0 0
Locust Subd Outside cities and towns 42 Groundwater 2 3 0
Shipman Place Subd Outside cities and towns 40 Groundwater 1 1 0
Wildrose Estates Outside cities and towns 40 Groundwater 0 1 0

Systems placed by county record in Canyon County

20 systems

EPA has no service area map for these systems. They are placed by the county their records name (the counties EPA lists them serving, or the county coded in their IDs where EPA lists none), and without a map they are not counted in the figures above.

System Serves People served Main source Health-based violations, 10 years Unresolved Lead lines
Evergreen Mobile Park County on record 284 Groundwater 2 3 0
Ok Water Assn County on record 140 Groundwater 0 1 0
Gem State Academy County on record 121 Groundwater 0 0 0
Apache Heights Subdivision (2) County on record 110 Groundwater 0 22 0
Pleasant View Manor County on record 100 Groundwater 1 3 0
Idaho Youth Ranch Hands of Promise County on record 95 Groundwater 7 1 0
Horizon Ridge Subdivision County on record 75 Groundwater 0 0 No inventory
Southshore Water County on record 60 Groundwater 0 0 0
Valley View Water County on record 57 Groundwater 2 1 0
M and M Mountain View Subd EM2 County on record 54 Groundwater 0 0 0
Sunnyridge Property Owners County on record 53 Groundwater 0 6 0
Christis Mobile Park County on record 50 Groundwater 1 0 0
Northstar Subdivision County on record 50 Groundwater 4 0 0
Lindenwood Water Assn County on record 48 Groundwater 0 1 0
Vanal Heights Sweet Water County on record 45 Groundwater 0 0 0
Sunnyridge I Subd County on record 35 Groundwater 4 2 0
Country Meadows Subd County on record 35 Groundwater 0 0 0
Sunnyridge Subd 2 County on record 34 Groundwater 0 0 0
Aurora Subd County on record 30 Groundwater 0 0 0
Twin Bridges Subd County on record 28 Groundwater 0 1 0

Cities and towns in Canyon County

8 places

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Counties come from the counties EPA lists each system serving, matched to 2024 Census counties; where EPA lists none, from the county coded in the system's ID, its service area map, or its mailing address. A county holding at least a fifth of a system's service area map is added when at least a fifth of that map lies in those counties. Towns are the ones EPA lists and the Census places such a map covers, always inside those counties. In New England, where EPA's town names a whole Town, it is not matched to the village of the same name. A system is not listed in a county holding less than a fifth of its map, or in a county or town its map reaches when the map lies mostly outside the counties EPA lists, so a page can leave out a system that serves part of the area. Methodology and limitations