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The Effect of Construction, Installation, and Development on the Turbidity of Water in Monitoring Wells in Fine‐Grained Glacial Till
Author(s) -
Paul Duane G.,
Palmer Carl D.,
Cherkauer Douglas S.
Publication year - 1988
Publication title -
groundwater monitoring and remediation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 47
eISSN - 1745-6592
pISSN - 1069-3629
DOI - 10.1111/j.1745-6592.1988.tb00978.x
Subject(s) - piezometer , borehole , turbidity , geology , water well , water level , aquifer , hydrology (agriculture) , mining engineering , geotechnical engineering , environmental science , groundwater , oceanography , cartography , geography
Twenty monitoring wells were installed in fine‐grained glacial till at two sites in southeastern Wisconsin to study the effects of monitoring well construction, installation, and development on the amount of fine‐grained suspended material in the well. The types of well screens used were continuous slot, factory slot, factory slot with a filter wrap, and porous piezometer tips. Some of the wells were installed before the open borehole began to fill with water; others were installed after the water levels in the lower section of the borehole had begun to rise. About half of the wells were developed by surging while the others were simply bailed without surging. Installation of the wells in the initially dry holes resulted in wells that yielded samples with very low turbidity compared to wells installed in wet holes. Water samples from wells that were surged were more turbid than those that were not. The type of construction materials investigated had no effect on the turbidity of samples from the wells.