Where applicable, devices, products, and methods used in the installation, construction, and operation of treatment, distribution, and storage facilities and all other appurtenances to a public water system shall meet the specification criteria of the American Water Works Association, as required by Env-Ws 307.
N.H. Admin. Code § Env-Ws 374.09
#8478, eff 11-30-05 (formerly Env-Ws 375.11 )