Opinion ID: 6493113
Heading Depth: 3
Heading Rank: 3

Heading: Ditches

Text: There are two primary and two secondary systems that distribute water diverted from Ná Wai ‘Ehá. The primary systems are WWC’s ditch system and HC & S’s reservoir/ditch system. Nine active diversions feed the primary distribution system: two on Waihe'e River, one on North Waiehu Stream, one on South Waiehu Stream, two on ‘lao Stream, and three on Waikapü Stream. There are two major ditches in the system: the Waihe'e and Spreckels Ditches. The WWC distribution system involves eleven registered stream diversions, two major ditches, seven minor ditches, and sixteen reservoirs; HC & S shares in the cost and maintenance of portions of this system. HC & S also operates a diversion intake on South Waiehu Stream at the Spreckels Ditch, a diversion intake on lao Stream at the Spreckels Ditch, and the Spreckels Ditch from Reservoir 25 to its terminus at HC & S’s Reservoir 73. The waters that enter the distribution system travel by gravity flow in primary ditches through uplands into reservoirs that in turn deliver the water into smaller ditches for end use. The secondary systems are the so-called “kuleana” 7 ditches/pipes that either have an intake directly in a stream or receive water from the primary systems and the MDWS water treatment plants. The Commission identified seventeen kuleana diteh/pipe systems. Fourteen kuleana systems are connected to the primary distribution systems; three kuleana intakes connect directly to the streams.