(a) Water supplies of shared health facilities shall be operated in conformance with the following requirements:

1. (1) water shall be adequate in volume and pressure for all medical purposes;
2. (2) the water system shall not be operated with physical connections to other piping systems or connections to fixtures that may permit contamination of the water supply;
3. (3) the water system shall be operated with a hot water system adequate for all medical purposes; and
4. (4) the hot water supply shall be regulated by thermostatic or other control devices which shall be either locked or located in places not accessible to patients or the general public so that the hot water used by patients and the public is maintained at an even temperature which cannot cause personal injury.

(c) Ventilation, heating, air conditioning and air changing systems shall be:

1. (1) sufficient to provide for patient health and comfort;
2. (2) sufficient to assure that relative humidity is maintained at a minimum of 50 percent in those areas where conductive floors are required; and
3. (3) maintained in good repair and operated in a manner to prevent the spread of infection.

(d) Grounds and buildings shall be maintained:

1. (1) in a clean condition free of safety hazards;
2. (2) in such manner as will prevent standing water, flooding or leakage; and
3. (3) free of excessive noise, odors, pollens, dusts or other environmental pollutants and such nuisances as may adversely affect the health or welfare of patients.