Public water system record

UPPER TWIN LAKES WATER COMPANY INC

Federal records show 1 health-based violation and 8 monitoring/reporting issues for UPPER TWIN LAKES WATER COMPANY INC in the last ten years. The most serious issue in this window was a resolved Consumer Confidence Report violation.

ID1280194
RATHDRUM
ID
227 served

System profile

Source water Groundwater

ZIP 83858

Acute record in 10 years No

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Health-based records

Last 10 years

Monitoring issues

Last 10 years

Resolved vs. unresolved

8 resolved • 1 unresolved

PWSID

ID1280194

EPA public water system identifier

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Health-based violations

Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.

Contaminant	Rule family	Start date	Status	Acute
Consumer Confidence Report Treatment technique failure	110	Oct 22, 2023	Resolved	No

Monitoring and reporting issues

Monitoring violations are administrative records. They mean required testing or reporting was missed, not that a contaminant was found above a safe level.

Issue	Start date	Status
Lead and Copper Rule Monitoring and reporting	Dec 30, 2025	Unresolved
Lead and Copper Rule Monitoring and reporting	Oct 1, 2020	Resolved
Nitrate Monitoring and reporting	Jan 1, 2018	Resolved
Nitrate Monitoring and reporting	Jan 1, 2018	Resolved
Consumer Confidence Report Monitoring violation	Oct 1, 2016	Resolved
Lead and Copper Rule Monitoring and reporting	Jan 1, 2011	Resolved
Lead and Copper Rule Monitoring and reporting	Jul 1, 2009	Resolved
Lead and Copper Rule Monitoring and reporting	Jan 1, 2009	Resolved

Lead pipes

Total service lines 91

Lead pipes confirmed 0

Unknown material 0

Total service lines reported	91
Lead pipes confirmed	0
Galvanized pipes needing replacement	0
Pipes with unknown material	0
Non-lead pipes confirmed	91
Pipes that may be lead or unknown	0.0% (0)
Inventory submitted	Oct 16, 2024
EPA reporting status	Reported All Required Service Line Types

Interpretation

This system reported no lead or unknown service lines in its inventory. Note: the inventory covers the utility's pipes up to your property line; your home's internal plumbing may still contain lead if your home was built before 1986.

Verify on EPA SDWIS EPA Get the Lead Out guidance

The service line inventory covers pipes owned and operated by the water system, typically from the water main to the property line. Household service lines on the customer's side of the meter are the homeowner's responsibility and may or may not be included depending on the system and state law.