Skip to content
AquaCensus

Public water system · ID3140013

Active

Caldwell City of

Community water system in Canyon County, Idaho, drawing primarily on groundwater.

Dataset updated . Source: EPA SDWIS/ECHO public records.

Population served

74,000

Service connections

25,000

Primary source

GW

Groundwater

System type

CWS

Community water system

System record

PWSIDID3140013
System typeCommunity water system
Activity statusActive
Population served74,000
Service connections25,000
Primary water sourceGroundwater
Owner typeLocal government
Primacy agencyID state drinking water program
City served—
StateIdaho
ZIP—
CountyCanyon County

Violations & enforcement

BeganViolationContaminant or ruleHealth-basedStatus
2020-01-01Monitoring and reportingMonitoring, Regular · code 03Chlordanecode 2959NoArchived
2020-01-01Monitoring and reportingMonitoring, Regular · code 03Dalaponcode 2031NoArchived
2020-01-01Monitoring and reportingMonitoring, Regular · code 03Diquatcode 2032NoArchived
2020-01-01Monitoring and reportingMonitoring, Regular · code 03Picloramcode 2040NoArchived
2020-01-01Monitoring and reportingMonitoring, Regular · code 03Methoxychlorcode 2015NoArchived
2020-01-01Monitoring and reportingMonitoring, Regular · code 03Hexachlorocyclopentadienecode 2042NoArchived
2020-01-01Monitoring and reportingMonitoring, Regular · code 03Heptachlor epoxidecode 2067NoArchived
2020-01-01Monitoring and reportingMonitoring, Regular · code 03Oxamylcode 2036NoArchived
2020-01-01Monitoring and reportingMonitoring, Regular · code 03Glyphosatecode 2034NoArchived
2020-01-01Monitoring and reportingMonitoring, Regular · code 03Di(2-ethylhexyl) adipatecode 2035NoArchived
2020-01-01Monitoring and reportingMonitoring, Regular · code 03Toxaphenecode 2020NoArchived
2020-01-01Monitoring and reportingMonitoring, Regular · code 03Glyphosatecode 2034NoArchived

The 12 most recent violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.

Caldwell City of: frequently asked questions

Is Caldwell City of's water safe to drink?

Caldwell City of is an active community water system regulated under the Safe Drinking Water Act, overseen by the ID state drinking water program. EPA's SDWA data records violations for this system — the most recent are listed on this page; consult EPA ECHO or your annual Consumer Confidence Report for its current compliance status.

Who runs Caldwell City of?

Caldwell City of (PWSID ID3140013) is a local government-owned community water system, regulated by the ID state drinking water program.

How many people does Caldwell City of serve?

Caldwell City of reports serving 74,000 people through 25,000 service connections in Canyon County, Idaho.

Where does Caldwell City of get its water?

EPA SDWIS lists this system's primary water source as groundwater.

Other water systems in Canyon County

Water systemCountyPopulation servedTypeSource
Nampa City ofCanyon100,200CommunityGroundwater
Middleton City ofCanyon13,190CommunityGroundwater
Parma City ofCanyon2,250CommunityGroundwater
Wilder City ofCanyon1,690CommunityGroundwater
Caldwell Housing AuthorityCanyon1,100CommunityGroundwater
Greenleaf City ofCanyon846CommunityGroundwater

Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.