Wash. Admin. Code § 246-294-040
(2) The department will use the criteria from drinking water regulations to evaluate systems and place them into the following operating permit categories:
(b) Category yellow. This category represents systems that are substantially in compliance with drinking water regulations, except that the system:
(ii) Is a state significant noncomplier that has signed a compliance agreement with the department to resolve the violations and is acting in accordance with the compliance agreement.
The department considers systems in the yellow category as adequate for existing uses and new service connections up to the number of approved service connections unless otherwise limited by a compliance agreement.
(c) Category blue. This category represents systems that are substantially in compliance with drinking water regulations except that the system:
(ii) Has exceeded the number of department approved service connections.
The department considers systems in this category as adequate for existing uses but are not considered adequate for adding new service connections.
(d) Category red. This category represents systems that are substantially out of compliance with drinking water regulations. The department will place a system in this category if it is:
(iii) Under a departmental order for violations that pose an imminent threat to public health.
The department considers systems in this category inadequate for existing uses and for additional service connections.
[Statutory Authority: Chapter 70.119A RCW. WSR 04-06-047, § 246-294-040, filed 3/1/04, effective 4/1/04; WSR 93-03-047 (Order 325), § 246-294-040, filed 1/14/93, effective 2/14/93.]