Colorado Revised Statutes Title 37. Water and Irrigation § 37-84-115. Gauge rods

A gauge rod, marked in feet and tenths and one-hundredths of a foot, shall be permanently fixed and maintained at the outlets of all reservoirs, under the supervision of the division engineer, and if any owner or possessor of any reservoir fails or refuses to provide, fix, and maintain such gauge rod then the owner or possessor of such reservoir shall not be entitled to impound any water whatever in said reservoirs until the provisions of this section are fully complied with. Notwithstanding the foregoing the division engineer may determine that such rod is not necessary with respect to specific reservoirs. Such determination shall be in writing and may be rescinded in writing at any time.