1. Each travel trailer park shall be provided with at least one service building separately equipped with flush-type toilet fixtures and other sanitary facilities.
2. Service buildings shall:
a. Be located 25 feet or more from any travel trailer space;
b. Be of permanent construction and be adequately lighted;
c. Be of moisture-resistant material, to permit frequent washing and cleansing;
d. Have adequate heating facilities to maintain a temperature of 70°F during cold weather, and to supply adequate hot water during time of peak demands; and
e. Have all rooms well-ventilated, with all openings effectively screened.
3. All service buildings and the grounds of the park shall be maintained in a clean condition and kept free of any condition that will menace the health of any occupant or the public, or constitute a menace.