The operator shall:

1. (1) Provide a safe and reliable supply of drinking water from an approved Group A or Group B public water system meeting the requirements of:

   1. (a) WAC 246-358-025 (2)(d) and chapter 246-290 WAC, or chapter 246-291 WAC; or
   2. (b) Local board of health rules.
2. (2) Ensure that the distribution lines are able to maintain the working pressure of the water piping system at not less than twenty pounds per square inch after allowing for friction and other pressure losses.
3. (3) When water is not piped to each dwelling unit, provide cold, potable, running water under pressure within one hundred feet of each dwelling unit.

4. (4) When water sources are not available in each dwelling unit:

   1. (a) Provide one or more drinking fountains for each one hundred occupants or fraction thereof; and
   2. (b) Prohibit the use of common drinking cups or containers from which water is dipped or poured.
5. (5) Provide an adequate supply of hot and cold running water under pressure in bathing, food-handling, and laundry facilities.
6. (6) Provide an automatically controlled hot water supply of 100 to 120 degrees Fahrenheit in bathing, food-handling, and laundry facilities.

7. (7) When water located within 100 feet of a dwelling unit is unsafe for drinking purposes and accessible to occupants, post a sign by each nonpotable water source that:

   1. (a) Reads "DO NOT DRINK. DO NOT USE FOR WASHING. DO NOT USE FOR PREPARING FOOD.";
   2. (b) Is printed in English and in the native language(s) of the occupants; and
   3. (c) Is marked with easily understood pictures or symbols.

[Statutory Authority: Chapter 70.114A RCW and RCW 43.70.334 through 43.70.340. WSR 15-13-091, § 246-358-055, filed 6/15/15, effective 7/16/15. Statutory Authority: RCW 70.114A.065 and 70.114A.110. WSR 00-06-082, § 246-358-055, filed 3/1/00, effective 3/1/00. Statutory Authority: RCW 70.54.110. WSR 96-02-014, § 246-358-055, filed 12/21/95, effective 1/1/96; WSR 93-03-032 (Order 326B), § 246-358-055, filed 1/12/93, effective 2/12/93; WSR 92-04-082 (Order 242B), § 246-358-055, filed 2/5/92, effective 3/7/92. Statutory Authority: RCW 43.20.050. WSR 91-02-051 (Order 124B), recodified as § 246-358-055, filed 12/27/90, effective 1/31/91; WSR 88-10-027 (Order 309), § 248-63-055, filed 5/2/88.]