Liner Type (LT)
1 - Engineered 2 - Partial 3 - None
For all Tailings Storage Types. A Dry-Stack, as well as a TSF pond(s), may or may not have a bottom liner, or layers of filtration to protect groundwater. These are made from different materials, some manmade, some natural. ENTER “1” for an engineered liner with 3 (or more) layers of fabric and/or filtration material); ENTER “2” for a partially engineered (1 or 2 layer) liner; and ENTER “3” if the TSF has no significant liner or filtration layer.