D.C. Mun. Regs. tit. 22, r. 22-A3829
Each MHCRF shall ensure that its water supply and distribution system, including all plumbing and water heating facilities, conform to applicable requirements of the D.C. Construction Codes, including the D.C. Property Maintenance Code and the D.C. Plumbing Code, the D.C. Housing Code, and the D.C. Water and Sewer Authority.
Each MHCRF shall provide adequate quantities of hot and cold water to serve the number of residents and staff in the facility.
The temperature of hot water at each fixture used by a 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.).
The water supply may also include a separate or boosted supply at higher temperatures for the kitchen and for dishwashing and laundry.
Each MHCRF shall provide hot and cold running water, under pressure, to each sink, bathtub, and shower, to each area where food is prepared and where food equipment, utensils or containers are washed, and to the laundry and bathrooms.
The MHCRF shall report to the Department any lack of water or disconnection of service within four (4) hours if it occurs during a business day, and within twelve (12) hours if it occurs after business hours or on the weekend.
If the water to a MHCRF is disconnected or not operating, the MHCRF shall provide bottled water for drinking, which shall be maintained in a secure location at the MHCRF at all times so that a sufficient quantity of bottled water is available. If the water to a MHCRF is disconnected or not operating for more than four (4) hours, the MHCRF shall also provide water for hand-washing and flushing the toilet. The MHCRF shall coordinate an emergency transfer of residents in the event the loss of water is expected to last more than forty-eight (48) hours.
D.C. Mun. Regs. tit. 22, r. 22-A3829