(a) Any person served by the public water system may petition the Administrator to object to the granting of a small system variance within 30 days after a State proposes to grant a small system variance for a public water system.
(b) The Administrator must respond to a petition filed by any person served by the public water system and determine whether to object to the small system variance under Sec. 142.311, no later than 60 days after the receipt of the petition.
EPA Review And Approval of Small System Variances