Upper Floridan: Albany-Dougherty County

Aquifer characteristics: Water levels in six wells were used to define groundwater conditions in the Upper Floridan aquifer near Albany, Georgia (Dougherty County map). Water levels in this area are affected by changes in precipitation and pumping (Gordon and others, 2012). Hydrographs for selected wells (below) illustrate monthly mean water levels for the period of record (POR). The hydrographs show periodic upward or downward trends that reflect surplus or deficits in rainfall, respectively, and changes in pumping.

Well Locations with Ten Year Trend Icons

up arrow icon down arrow icon    Arrow icons represent upward or downward water-level trend. Water-level trend calculations based on last 10 years of data.
dot icon    Circle icon represents slope of trend line with an absolute value that is less than 0.01 feet per year (ft/yr), and/or less than 100 monthly-mean water levels from the last 10 years of data.
up arrow icon with graph down arrow icon with graph dot icon with graph    Split color icons represent wells with graphs.
square light blue precip gage icon    Light blue square indicates nearby precipitation gage.
(Click or hover over map icons for more information.)

Water-level Trends: The table below shows the period of record (POR) and most recent ten-year trends of monthly mean water levels for the six wells. The data used in the trend analyses are pulled from the USGS National Water Information System: Web Interface (NWISweb), and the trends are calculated in ft/yr. The check boxes on the left side of the table allow the reader to compare only those wells of interest by selecting them on or off to appear on the Monthly Mean Composite Graph.

Below the table and composite graphs are trend analysis graphs for two wells. The trend analyses show mostly long-term effects of pumping. A simple regression line may be placed on the graph by selecting the Simple Regression button, and the slope of the line is calculated. To clear the regression line, select the Clear Regression Line button. Like the composite graph, the user can click and drag the mouse vertically or horizontally to change the scale and zoom in to the time-period of interest. Any changes to the time scale will require the user to clear and recreate a regression line for the new time scale. Double click on the graph and it will return to the period of record.

2022 conditions for select wells: The POR mean of monthly water levels for well 11K003 ranged from 24.4 to 31.4 ft below land surface. During 2022, monthly mean water levels ranged from 23.9 to 32.9 ft below land surface. POR mean of monthly water levels for well 13L049 ranged from 28.9 to 36.8 ft below land surface. During 2022, monthly mean water levels ranged from 32.4 to 39.0 ft below land surface; however, data are not available for seven months.

Period of Record (POR) and 2022 Summary Table
Well Period of Record 2022
Mean of monthly water levels in feet below land surfaceMonthly mean water levels in feet below land surface
11K00324.4-31.423.9-32.9
13L04928.9-36.832.4-39.0

Period of Record (POR) and 2022 Summary Table and above text, updated June 2023. Monthly Mean Composite graph updated weekly, all other graphs and tables continuously updated.

Slope of trend line for Period of Record (POR) and previous Ten Years
Station Name
Data Link
County
POR First
Month/Year
POR slope
(ft/yr)
Ten Year
slope (ft/yr)
Dougherty xx xx yy
Dougherty xx xx yy
Dougherty xx xx yy
Dougherty xx xx yy
Dougherty xx xx yy
Dougherty xx xx yy

Slope of 0.00 represents no trend.

Monthly Mean Composite Graph

To change the graph scale, click and drag mouse vertically or horizontally.
To reset the graph scale, double click on the graph.

Monthly Mean Graph Values
(mouse over graph for date and depth)

Select Monthly Mean Data Graphs with Trend Analysis

To change the graph scale, click and drag mouse vertically or horizontally. To reset graph scale, double click on the graph.

Station name: 11K003
County: Dougherty
Number: 312919084153801

Slope (ft/yr):
Date (begin): Date (end): Data points:

Station name: 13L049
County: Dougherty
Number: 313521084051001

Slope (ft/yr):
Date (begin): Date (end): Data points:

References