Chapter 11 The Great Plains

 
The Honouliuli Wastewater Treatment Plant
   

     Honolulu is not part of the Great Plains that is discussed in the text.  The text discusses tMinnesota, Iows, North Dakota, South Dakota, Nebraska, Kansas, Oklahoma, texas, Montana, Wyoming, Colorado, and New Mexico along with three Canadian provicens such as Manitoba, Saskatchewan, and Albertal. 

     The Honouliuli Wastewater Treatment Plant (WWTP), located in southwestern Oahu, was built in 1978 with its deep ocean outfall 8,760 feet offshore at a depth of 200 feet completed in February 1979.   The service area for this system, often referred to as West Mamala, extends from Halawa to Makakilo, Barbers Point and Mililani.

     The Honouliuli WWTP, which was strictly a primary treatment at first, has a design capacity of 51 million gallons per day (mgd), provides both primary and secondary treatment. In January 1996, the completion of a secondary treatment facility allows treatment of up to 13 mgd of wastewater. Secondary treated wastewater receives tertiary treatment via the Board of Water Supply's Ewa Reclamation Facility, for beneficial reuse in the Kapolei and Ewa areas. The plant currently processes approximately 26 mgd daily.  Wastewater enters the Honouliuli WWTP through five separate interceptor sewers: Makakilo from the west; Waipio Peninsula from the east; Ewa Gentry from the north; Ewa Beach from the south; and Barbers Point (U.S. Navy) from the southwest.

Reference
http://www1.honolulu.gov/env//wwm/plants/honouliuli.htm