We are writing on behalf of Hui Mālama Honokōhau (“the Hui”) to notify you of serious and ongoing violations of the federal Clean Water Act (“CWA” or “Act”), 33 U.S.C. § 1251 et seq., at the Kealakehe Wastewater Treatment Plant (“Kealakehe WWTP”), located in Kealakehe, Keahuloa, North Kona, Hawai‘i, which the County of Hawai‘i (“County”) operates and maintains.