C.R.S. § 37-84-124

It is the duty of every person who is entitled to take water for irrigation purposes from any ditch, canal, or reservoir to see that he receives no more water from such ditch, canal, or reservoir through his headgate, or by any ways or means whatsoever, than the amount to which he is entitled. At all times, such person shall take every precaution to prevent more water than the amount to which he is entitled from such ditch, canal, or reservoir from coming upon his land.