U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.


Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Luttrell Leachate Treatment Plant

Site Contact:
Joyel Dhieux


Site Location:
Helena, MT 59626

The Luttrell Leachate Treatment Plant (LTP) is an interim facility designed to treat leachate from the Luttrell Repository located at the headwaters of the Tenmile and Basin Creek watersheds.  Located south of Rimini in Lewis and Clark County, the LTP is located within the 53-square mile Upper Tenmile Creek Mining Area which includes approximately 150 active and abandoned mine sites.  The Luttrell LTP operates six-days a week from mid-May to mid-October.

The Luttrell LTP started operations on May 27, 2023.

Water Treated in 2023:  112,904 gallons