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dc.contributor.author Dugan, Gordon L en_US
dc.date.accessioned 2009-06-09T02:19:58Z en_US
dc.date.available 2009-06-09T02:19:58Z en_US
dc.date.issued 1991-08 en_US
dc.identifier.citation Dugan GL. 1991. Leachate evaluation and monitoring project, Kapaa Sanitary Landfill, Kawainui, Oahu, Hawaii. Honolulu (HI): Water Resources Research Center, University of Hawaii at Manoa. WRRC special report, 07:05:91. en_US
dc.identifier.uri http://hdl.handle.net/10125/8772 en_US
dc.description.abstract The operation of the City and County of Honolulu Kapaa Sanitary Landfill, located next to Kawainui Marsh in Kawainui, Oahu, Hawaii, raised concern over the possibility that landfill leachate could have adverse effects on the marsh. Thus, an intensive 2-yr baseline study (1979-1980) was conducted in which six sampling sites each were established for surface water and groundwater; this was followed by an ongoing, low-level monitoring program begun in 1981 and reported herein through 1990. Analyses were conducted for typical surface-water and leachate parameters. There was obvious interchange of the marsh water and groundwater, with the higher mineral constituents of seawater intrusion being more evident in the monitoring wells with lower water level. The outstanding characteristic of leachate, chemical oxygen demand (COD), which was typically reported at a concentration of 18,000 mg/l, was found at only a fraction of this value at the sample stations - the highest annual median COD value of the 12-yr study being only 85 mg/l for one of the sampling wells, and 325 mg/l at a surface-water sampling station. No consistent correlation could be found between individual constituent concentrations of the surface-water stations or monitoring wells and groundwater levels, rainfall, or seasonal and/or annual changes. It is concluded that any correlation between leachate production and the underlying groundwater quality would have to be considered minor at best. en_US
dc.description.sponsorship City and County of Honolulu Department of Public Works Division of Refuse Collection and Disposal Grant/Contract No. C-57330 en_US
dc.format.extent viii + 61 pages en_US
dc.language.iso en-US en_US
dc.publisher Water Resources Research Center, University of Hawaii at Manoa en_US
dc.relation.ispartofseries WRRC Special Reports en_US
dc.relation.ispartofseries 07:05:91 en_US
dc.subject landfills en_US
dc.subject surface waters en_US
dc.subject groundwater en_US
dc.subject environmental effects en_US
dc.subject water wells en_US
dc.subject plants (botany) en_US
dc.subject birds en_US
dc.subject Kapaa Landfill en_US
dc.subject Kawainui Marsh en_US
dc.subject Oahu en_US
dc.subject Hawaii en_US
dc.subject.lcsh Leaching -- Environmental aspects -- Hawaii -- Oahu. en_US
dc.subject.lcsh Sanitary landfills -- Leaching -- Hawaii -- Oahu. en_US
dc.title WRRCSR No.7:05:91 Leachate Evaluation and Monitoring Project, Kapaa Sanitary Landfill, Kawainui, Oahu, Hawaii en_US
dc.type Report en_US
dc.type.dcmi Text en_US

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