USGS Open-File Report 00-515
Surficial Aquifers
Water-level fluctuations in surficial aquifers were monitored in 16 wells in 1999 and data from 12 of these wells are summarized in this report. Water-level fluctuations in surficial aquifers are mainly caused by variations in precipitation, evapotranspiration, and natural drainage. In addition, the water level in surficial aquifers in the Brunswick area is influenced by nearby pumping, precipitation, and tidal fluctuations (Clarke and others, 1990, p. 24). Water levels in surficial aquifers generally rise rapidly during wet periods and decline slowly during dry periods. Prolonged droughts may cause water levels to decline below pump intakes in shallow wells, particularly those located on hilltops and steep slopes, resulting in temporary well failures. Usually, well yields are restored by precipitation. Areas of the surficial aquifers referred to in this report include: northern, southwestern, and coastal.
Northern area
Water levels in the surficial aquifers in the northern area were monitored in six wells in 1999. Data for two of these wells are available as PDF files, accessible by clicking on the well number in the map below or from Table 3b.
Figure 2. Location of observation wells completed in surficial aquifers, northern area.
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Last updated Monday, 26-Jun-2000 15:14:19 EDT
The URL for this page is http://ga.water.usgs.gov/publications/ofr00-151/surficial.html