NEW PLYMOUTH, ID · Boise County

TERRACE LAKES WATER COMPANY Water System

Current status

12 items on record are open and awaiting resolution as of July 4, 2026. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings. Full details are in the violation history below.

This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace Idaho’s official records. Always confirm current status with Idaho before making decisions based on this information.

System facts

System ID (PWSID): ID4080047
System type: Community Water System
Population served: 475
Service connections: 420
Ownership: privately owned
Water source: groundwater (wells)

Violation history

Maximum Contaminant Level Violation, Average
Health-based
Di(2-ethylhexyl) phthalate
April 1, 2025 – June 30, 2025
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Di(2-ethylhexyl) phthalate
January 1, 2025 – March 31, 2025
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Di(2-ethylhexyl) phthalate
July 1, 2024 – September 30, 2024
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2023 – September 30, 2023
Resolved
Monitoring, Regular
—
Toluene
January 1, 2023 – March 4, 2026
Unaddressed
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2023 – March 5, 2026
Unaddressed
Monitoring, Regular
—
Benzene
January 1, 2023 – March 5, 2026
Unaddressed
Monitoring, Regular
—
Ethylbenzene
January 1, 2023 – March 5, 2026
Unaddressed
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2023 – March 4, 2026
Unaddressed
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2023 – March 4, 2026
Unaddressed
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2023 – March 4, 2026
Unaddressed
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2023 – December 31, 2025
Archived
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
ETHYLENE DIBROMIDE
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
HEXACHLOROBENZENE
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Dinoseb
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Simazine
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Toxaphene
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Endrin
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Xylenes, Total
January 1, 2023 – March 5, 2026
Unaddressed
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2023 – March 5, 2026
Unaddressed
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2023 – March 5, 2026
Unaddressed
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2023 – March 5, 2026
Unaddressed
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2023 – March 5, 2026
Unaddressed
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
December 1, 2022 – December 31, 2022
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2022 – December 31, 2022
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2018 – December 31, 2018
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
January 1, 2013 – January 31, 2013
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 2012 – December 31, 2012
Archived
Monitoring, Regular
—
Styrene
October 1, 2004 – December 31, 2004
Resolved

Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yetArchived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
April 1, 2025 – June 30, 2025	Maximum Contaminant Level Violation, Average	Di(2-ethylhexyl) phthalate	Health-based	Resolved
January 1, 2025 – March 31, 2025	Maximum Contaminant Level Violation, Average	Di(2-ethylhexyl) phthalate	Health-based	Resolved
July 1, 2024 – September 30, 2024	Maximum Contaminant Level Violation, Average	Di(2-ethylhexyl) phthalate	Health-based	Resolved
July 1, 2023 – September 30, 2023	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 2023 – March 4, 2026	Monitoring, Regular	Toluene	—	Unaddressed
January 1, 2023 – March 5, 2026	Monitoring, Regular	1,1,2-Trichloroethane	—	Unaddressed
January 1, 2023 – March 5, 2026	Monitoring, Regular	Benzene	—	Unaddressed
January 1, 2023 – March 5, 2026	Monitoring, Regular	Ethylbenzene	—	Unaddressed
January 1, 2023 – March 4, 2026	Monitoring, Regular	1,1-Dichloroethylene	—	Unaddressed
January 1, 2023 – March 4, 2026	Monitoring, Regular	1,1,1-Trichloroethane	—	Unaddressed
January 1, 2023 – March 4, 2026	Monitoring, Regular	Tetrachloroethylene	—	Unaddressed
January 1, 2023 – December 31, 2025	Monitoring and Reporting (DBP)	TTHM	—	Archived
January 1, 2023 – December 31, 2025	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	ETHYLENE DIBROMIDE	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	HEXACHLOROBENZENE	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Dinoseb	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Simazine	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Toxaphene	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Endrin	—	Archived
January 1, 2023 – March 5, 2026	Monitoring, Regular	Xylenes, Total	—	Unaddressed
January 1, 2023 – March 5, 2026	Monitoring, Regular	DICHLOROMETHANE	—	Unaddressed
January 1, 2023 – March 5, 2026	Monitoring, Regular	1,2-Dichloroethane	—	Unaddressed
January 1, 2023 – March 5, 2026	Monitoring, Regular	1,1,1-Trichloroethane	—	Unaddressed
January 1, 2023 – March 5, 2026	Monitoring, Regular	Carbon tetrachloride	—	Unaddressed
December 1, 2022 – December 31, 2022	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
October 1, 2022 – December 31, 2022	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
October 1, 2018 – December 31, 2018	Monitoring and Reporting (DBP)	Chlorine	—	Archived
January 1, 2013 – January 31, 2013	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
December 1, 2012 – December 31, 2012	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
October 1, 2004 – December 31, 2004	Monitoring, Regular	Styrene	—	Resolved

Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yetArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

December 11, 2025State Compliance achieved4 linked violations
November 20, 2025State Violation/Reminder Notice2 linked violations
September 26, 2025State Public Notification received1 linked violation
August 16, 2025State Public Notification requested1 linked violation
August 13, 2025State Violation/Reminder Notice1 linked violation
April 14, 2025State Public Notification requested1 linked violation
April 11, 2025State Violation/Reminder Notice1 linked violation
March 6, 2025State Public Notification received1 linked violation
March 6, 2025State Public Notification received1 linked violation
January 19, 2025State Public Notification requested1 linked violation
January 16, 2025State Violation/Reminder Notice1 linked violation
October 31, 2024State Compliance achieved2 linked violations
October 31, 2024State Compliance achieved1 linked violation
October 14, 2024State Public Notification requested1 linked violation
October 14, 2024State Public Notification received1 linked violation
October 11, 2024State Violation/Reminder Notice1 linked violation
November 12, 2023State Public Notification requested1 linked violation
November 9, 2023State Violation/Reminder Notice1 linked violation
February 24, 2023State Public Notification requested1 linked violation
February 21, 2023State Violation/Reminder Notice1 linked violation
February 19, 2023State Public Notification requested1 linked violation
February 16, 2023State Violation/Reminder Notice1 linked violation
February 12, 2022State Public Notification requested1 linked violation
February 9, 2022State Violation/Reminder Notice1 linked violation
November 30, 2021State Compliance achieved1 linked violation
February 16, 2019State Public Notification requested1 linked violation
February 13, 2019State Violation/Reminder Notice1 linked violation
January 21, 2019State Public Notification requested1 linked violation
January 18, 2019State Violation/Reminder Notice1 linked violation
January 2, 2019State Compliance achievedgeneral compliance action — not tied to a specific violation on record
May 14, 2018State Public Notification requested1 linked violation
May 11, 2018State Violation/Reminder Notice1 linked violation
August 7, 2017State Public Notification requested1 linked violation
August 4, 2017State Violation/Reminder Notice1 linked violation
May 16, 2016State Public Notification requested1 linked violation
May 13, 2016State Violation/Reminder Notice1 linked violation
February 8, 2016State Public Notification requested7 linked violations
February 8, 2016State Public Notification requested1 linked violation
February 5, 2016State Violation/Reminder Notice1 linked violation
December 15, 2010State Compliance achieved1 linked violation
October 4, 2010State Public Notification requested4 linked violations
October 4, 2010State Public Notification requested7 linked violations
May 6, 2010State Public Notification requested2 linked violations
May 3, 2010State Violation/Reminder Notice1 linked violation
March 10, 2010State Public Notification received4 linked violations
February 1, 2010State Violation/Reminder Notice2 linked violations
November 29, 2007State Bilateral Compliance Agreement signed24 linked violations
July 11, 2007Federal Compliance achieved2 linked violations

Contact

CORDOVA, MARY

208-440-4756

NEW PLYMOUTH, ID 83655