5 Colo. Code Regs. § 1003-5-3.22
Separate shower facilities shall be provided for males and females shall be accessible to disabled persons, and, when provided for the exclusive use of swimmers, shall be so located that bathers must pass through the shower room before entering into the swimming pool area. The minimum number of showers provided shall be in proportion of one (1) to each forty (40) bathers expected at the time of maximum load. The ceilings and walls of the shower room or area shall be constructed of smooth, impervious, easily cleanable material, not adversely affected by steam or water. The floors of the shower room or area shall be constructed of non-slip, impervious, easily cleanable material, not adversely affected by steam or water.
Showers shall be supplied with water at a temperature of at least 90°F with a minimum rate of three (3) gallons of water per shower per minute. Thermostatic tempering, or mixing valves shall be installed if necessary to prevent scalding of bathers.
Where shower booths are provided in the shower room, the booth partitions shall be of a material which will not be damaged by shower water and shall have a minimum clearance of six (6) inches above the floor. Shower rooms shall be provided with at least ten (10) foot candles of light upon all surfaces so that all parts are visible for easy cleaning.
5 CCR 1003-5-3.22