Simplify the following text for a Grade 7 native English-speaking person.
Original: To provide water for its steam locomotives , the Commissioners decided to provide a dam and pump water from it to a facility , known as Young Tank , at the 246 m post .
Simplified: To provide water for the steam trains , they decided to use the dam and pump water from it to a tank , known as Young Tank , at the 246 mile post .