WAC 173-160-216
What are the standards for use of
polymers and additives? (1) All polymers and additives used
in any well shall be certified by NSF/ANSI approval standards
for use in potable water supply wells, or equivalent standards
as approved by the department. The product shall be clearly
labeled as meeting these standards.
(2) Polymers and additives must be designed and
manufactured to meet industry standards to be nondegrading and
must not act as a medium which will promote growth of
microorganisms.
[Statutory Authority: Chapter 18.104 RCW. 09-01-125 (Order
08-10), § 173-160-216, filed 12/19/08, effective 1/19/09.]