C.R.S. § 25-13-106

(1) In organized campgrounds, all sewage shall be disposed of in facilities provided by the campground operator. The operator shall maintain such facilities in the manner prescribed by rules and regulations of the board. (2) Sewage in recreation areas may be disposed of by burial at a depth greater than six inches at a distance of more than one hundred feet from any surface waters. Adequate precautions shall be taken to prevent the intrusion of such sewage and wastewater upon the environment in a manner which is unhealthful, injurious to the environment, or otherwise degrading to the environment. (3) Public accommodation sewage and wastewater disposal facilities shall conform to such reasonable rules and regulations as may be promulgated by the board.