D.C. Mun. Regs. tit. 22-B, § 3805
3805.1 Each MHCRF shall ensure that its water supply and distribution system conform to applicable District laws and regulations and shall report to DCRA the lack of a water supply within twelve hours (12 hrs.) of discontinuation of services.
3805.2 Each MHCRF shall have plumbing sized, installed, and maintained that is adequate to carry quantities of hot and cold water in the facility in a manner which would not constitute an unsanitary condition or a nuisance.
3805.3 The temperature of hot water at each fixture that is to be used by each resident shall be automatically controlled and shall be maintained within the range of five degrees Fahrenheit (5° F.) over or under one-hundred and twenty degrees Fahrenheit (120° F.).
3805.4 The water supply may also include a separate or boosted supply at higher temperatures for the kitchen and for dishwashing and laundry uses.
3805.5 Each MHCRF shall provide hot and cold running water, under pressure, to each area where food is prepared, where food equipment, utensils or containers are washed, and to the laundry, bath, and toilet.
SOURCE: Final Rulemaking published at 42 DCR 569, 575 (January 27, 1995).