WRRCTMR No.81 Monitoring Makakilo Well No. 1 for Human Enteroviruses and Selected Bacteria Indicators
Date
1987-05
Authors
Contributor
Advisor
Department
Instructor
Depositor
Speaker
Researcher
Consultant
Interviewer
Narrator
Transcriber
Annotator
Journal Title
Journal ISSN
Volume Title
Publisher
Water Resources Research Center, University of Hawaii at Manoa
Volume
Number/Issue
Starting Page
Ending Page
Alternative Title
Abstract
Groundwater 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.
Description
Keywords
enteroviruses, sewage bacteria, viruses, groundwater pollution, drinking water, Makakilo Well No. 1, sugarcane, Makakilo WWTP, fecal coliform, fecal streptococcus, Oahu, Hawaii, Groundwater -- Pollution -- Hawaii -- Oahu., Water quality -- Measurement -- Hawaii -- Oahu., Well water -- Hawaii -- Oahu.
Citation
Fujioka 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.
Extent
vii + 17 pages
Format
Geographic Location
Time Period
Related To
Related To (URI)
Table of Contents
Rights
Rights Holder
Local Contexts
Collections
Email libraryada-l@lists.hawaii.edu if you need this content in ADA-compliant format.