WRRCTMR No.81 Monitoring Makakilo Well No. 1 for Human Enteroviruses and Selected Bacteria Indicators

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dc.contributor.authorFujioka, Roger S.
dc.contributor.authorLau, L. Stephen
dc.date.accessioned2008-10-01T00:43:48Z
dc.date.available2008-10-01T00:43:48Z
dc.date.issued1987-05
dc.description.abstractGroundwater is the source of 99% of the drinking water provided to consumers on Oahu, the major island in the state of Hawaii. However, virtually all approved sources of water on Oahu have been planned for use. As a result, plans for new urban development are currently being delayed for lack of approved water sources. A well to provide drinking water was dug by a private developer in an area of questionable groundwater quality. This investigation assessed the quality of the groundwater and determined whether sewage effluent, which was discharged into an unlined ditch in the vicinity of the well, had an impact on the quality of the groundwater. The quality of groundwater from a new well dug near the coastal plain on Oahu was determined by pumping out 1 022 m^3 (270,000 gal) of water over 1.5 days and analyzing nine representative samples. No fecal coliforms (<1/100 ml) and only 1.6 fecal streptococcus/ 100 ml were recovered in the nine samples. Also, no human enteric virus was recovered in the four 0.38-m^3 (l00-gal) samples, an indication that the groundwater was not contaminated with sewage. One and three foot soil percolates collected under the ditch which transported sewage near the well were similarly analyzed and the results indicated that it would be most unlikely for sewage-borne bacteria and viruses in the effluent to percolate through the soil profile to contaminate the groundwater. The groundwater was also analyzed for eleven chemicals. The concentration of total dissolved solids (750 mg/l) was the only measurement which exceeded the MCL for drinking water, although the concentration of chloride (241 mg/l) closely approximated its MCL. Blending of this groundwater with high quality groundwater is a viable alternative of increasing the volume of potable water required for urban expansion.
dc.description.sponsorshipThe Estate of James Campbell Contract No. T-135
dc.format.extentvii + 17 pages
dc.identifier.citationFujioka RS, Lau LS. 1987. Monitoring Makakilo Well No. 1 for human enteroviruses and selected bacteria indicators. Honolulu (HI): Water Resources Research Center, University of Hawaii at Manoa. WRRC technical memorandum report, 81.
dc.identifier.urihttp://hdl.handle.net/10125/2686
dc.language.isoen-US
dc.publisherWater Resources Research Center, University of Hawaii at Manoa
dc.relation.ispartofseriesWRRC Technical Memorandum Report
dc.relation.ispartofseries81
dc.subjectenteroviruses
dc.subjectsewage bacteria
dc.subjectviruses
dc.subjectgroundwater pollution
dc.subjectdrinking water
dc.subjectMakakilo Well No. 1
dc.subjectsugarcane
dc.subjectMakakilo WWTP
dc.subjectfecal coliform
dc.subjectfecal streptococcus
dc.subjectOahu
dc.subjectHawaii
dc.subject.lcshGroundwater -- Pollution -- Hawaii -- Oahu.
dc.subject.lcshWater quality -- Measurement -- Hawaii -- Oahu.
dc.subject.lcshWell water -- Hawaii -- Oahu.
dc.titleWRRCTMR No.81 Monitoring Makakilo Well No. 1 for Human Enteroviruses and Selected Bacteria Indicators
dc.typeReport
dc.type.dcmiText

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