U.S. Department of the Interior

U.S. Geological Survey

Scientific Investigations Report 2012–5179

Hydrologic and Water-Quality Conditions in the 

Lower Apalachicola–Chattahoochee–Flint and Parts 

of the Aucilla–Suwannee–Ochlockonee River Basins 

in Georgia and Adjacent Parts of Florida and Alabama 

During Drought Conditions, July 2011
Cover. Background: field of sunflowers, Cordele, Georgia. Insets: left, gossypium (cotton) flowers, Dougherty County, Georgia; 

middle, USGS hydrologic technician taking water-level measurement from a well in Dougherty County, Georgia; right, exposed 

Ocala Limestone at a spring southwest of Albany, Georgia.
Hydrologic and Water-Quality Conditions in the 

Lower Apalachicola–Chattahoochee–Flint and Parts 

of the Aucilla–Suwannee–Ochlockonee River Basins 

in Georgia and Adjacent Parts of Florida and Alabama 

During Drought Conditions, July 2011

By Debbie W. Gordon, Michael F. Peck, and Jaime A. Painter

Scientific Investigations Report 2012–5179

U.S. Department of the Interior

U.S. Geological Survey
U.S. Department of the Interior

KEN SALAZAR, Secretary

U.S. Geological Survey

Marsha K. McNutt, Director

U.S. Geological Survey, Reston, Virginia: 2012

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Suggested citation:

Gordon, D.W., Peck, M.F., and Painter, J.A., 2012, Hydrologic and water-quality conditions in the lower Apalachicola–

Chattahoochee–Flint and parts of the Aucilla–Suwanee–Ochlockonee River basins in Georgia and adjacent parts of 

Florida and Alabama during drought conditions, July 2011: U.S. Geological Survey Scientific Investigations Report 

2012–5179, 69 p., 1 sheet, available online at http://pubs.usgs.gov/sir/2012/5179/.
iii

Contents

Abstract...........................................................................................................................................................1

Introduction ....................................................................................................................................................2

Purpose and Scope .............................................................................................................................2

Description of the Study Area .....................................................................................................................2

Physiography ........................................................................................................................................4

Hydrogeologic Setting ................................................................................................................4

Stream and Lake Characteristics .............................................................................................4

Climate ..........................................................................................................................................5

Previous Investigations........................................................................................................................7

Station-Numbering Systems for Wells and Surface Water...........................................................7

Methods...........................................................................................................................................................8

Hydrologic Conditions and Stream-Water Quality during July 2011 .....................................................8

Precipitation...........................................................................................................................................8

Groundwater Levels ...........................................................................................................................10

Streamflow...........................................................................................................................................18

Water Quality of Streams and Springs............................................................................................23

Summary........................................................................................................................................................28

Selected References...................................................................................................................................29

Appendix. Map showing location of all measurement sites used in this 

study, lower Apalachicola–Chattahoochee–Flint River basin and in

western and central parts of the Aucilla–Suwannee–Ochlockonee

River basin, Georgia and Florida (20×24-inch sheet).............................................separate file
iv

Figures

1. Map showing location of the study area, physiographic provinces, 

basin boundaries, and weather stations in the lower Apalachicola–

Chattahoochee–Flint River basin and in western and central parts of 

the Aucilla–Suwannee–Ochlockonee River basin, Georgia and Florida ............................3

2. Correlation chart showing generalized geologic and hydrologic units of the 

Upper Floridan aquifer and hydraulically connected sediments in the lower 

Apalachicola–Chattahoochee–Flint River basin and the Aucilla–Suwanee–

Ochlockonee River basin, eastern Alabama, northwestern Florida and 

southwestern Georgia .................................................................................................................5

3. Schematic cross sections showing the hydrologic connection between 

the Flint River, the overburden sediments of the upper semiconfining unit, 

and the Upper Floridan aquifer in Georgia during the wet season and the dry, 

summer growing season .............................................................................................................6

4. Maps showing intensity of drought in the southeastern United States for 

selected months in 2011 ..............................................................................................................9

5. Graphs showing cumulative departure from normal precipitation at National 

Oceanic and Atmospheric Administration Georgia weather stations Albany 3 SE, 

Tifton Experimental Station, and Tallahassee, 2006–2011 ...................................................10

6. Map showing location of wells open to the surficial aquifer and water levels, 

including record lows, in the lower Apalachicola–Chattahoochee–Flint River basin 

and in western and central parts of the Aucilla–Suwannee–Ochlockonee River 

basin, Georgia and Florida, July 2011......................................................................................11

7. Graphs showing water levels and long-term daily median statistics for 

well 07H003 and well 13M007 ...................................................................................................12

8. Map showing potentiometric surface and record low water levels of the 

Upper Floridan aquifer in the lower Apalachicola–Chattahoochee–Flint River 

basin and western and central parts of the Aucilla–Suwanee–Ochlockonee River 

basin, Georgia and Florida, July 2011......................................................................................13

9. Graphs showing water levels and long-term daily median statistics for 

well 15Q016, well 11K003, well 18H016, and well FL300740084293001, 2008......................14

10. Photographs showing spring south of Albany, Georgia, April 2003 and July 2011..........17

11. Map showing location of wells open to the Upper Floridan aquifer showing 

the difference in water levels from November 2008 to July 2011 in the lower 

Apalachicola–Chattahoochee–Flint River basin and in western and central 

parts of the Aucilla–Suwannee–Ochlockonee River basin, Georgia.................................19

12. Graphs showing discharge for U.S. Geological Survey streamgages 02316000,

02349900, 02353400, and 02329000, 2008–2011 .......................................................................20
v

13–17. Maps showing—

13. Discharge measurements made in the lower Apalachicola–Chattahoochee–

Flint River basin and western and central parts of the Aucilla–Suwanee–

Ochlockonee River basin, Georgia and Florida, showing gaining, losing, and 

dry stream reaches during July 2011 .............................................................................22

14. Location of weather stations and surface-water sites with temperature 

measurements in the lower Apalachicola–Chattahoochee–Flint River basin 

and in western and central parts of the Aucilla–Suwannee–Ochlockonee 

River basin, Georgia and Florida, July 2011...................................................................24

15. Location of surface-water sites with dissolved oxygen measurements in 

the lower Apalachicola–Chattahoochee–Flint River basin and in western 

and central parts of the Aucilla–Suwannee–Ochlockonee River basin, 

Georgia and Florida, July 2011.........................................................................................25

16. Location of surface-water sites with specific conductance measurements 

in the lower Apalachicola–Chattahoochee–Flint River basin and in western 

and central parts of the Aucilla–Suwannee–Ochlockonee River basin, 

Georgia and Florida, July 2011.........................................................................................26

17. Location of surface-water sites with pH measurements in the lower 

Apalachicola–Chattahoochee–Flint River basin and in western and 

central parts of the Aucilla–Suwannee–Ochlockonee River basin, 

Georgia and Florida, July 2011.........................................................................................27

Tables

1. Period of record monthly maximum, mean, and minimum values for 

temperature and precipitation at selected climatological stations in 

southwestern Georgia and northwestern Florida.................................................................32

2. Water levels in the surficial aquifer in Georgia and Florida, July 2011 and 

October 2006 ...............................................................................................................................34

3. Water levels in the Upper Floridan aquifer, July 2011 and November 2008......................36

4. Streamflow measurements collected in Alabama, Florida, and Georgia, 

July 2011 and November 2008 ..................................................................................................54

5. Stream and spring water-quality data July 20–24, 2011.......................................................64
vi

Conversion Factors and Datums

Inch/Pound to SI

Multiply By To obtain

Length

inch 2.54 centimeter (cm)

foot (ft) 0.3048 meter (m)

mile (mi) 1.609 kilometer (km)

yard (yd) 0.9144 meter (m)

Volume per unit time (includes flow)

cubic foot per second (ft3

/s) 0.02832 cubic meter per second (m3/s)

Temperature in degrees Celsius (°C) may be converted to degrees Fahrenheit (°F) as follows:

°F =(1.8 ×°C) +32

Temperature in degrees Fahrenheit (°F) may be converted to degrees Celsius (°C) as follows:

°C=(°F −32)/ 1.8

Vertical coordinate information is referenced to the National Geodetic Vertical Datum of 1988 

(NGVD 88).

Horizontal coordinate information is referenced to North American Datum of 1983 (NAD 83).

Altitude, as used in this report, refers to distance above the vertical datum.

Specific conductance is given in microsiemens per centimeter at 25 degrees Celsius 

(μS/cm at 25 °C).

Abbreviations

ACF Apalachicola–Chattahoochee–Flint

ASO Aucilla–Suwannee–Ochlockonee

HUC hydrologic unit code

mg/L milligram per liter

NOAA National Oceanic and Atmospheric Administration

DOI U.S. Department of the Interior

USGS U.S. Geological Survey

WaterSMART Sustain and Manage America’s Resources for Tomorrow
Hydrologic and Water-Quality Conditions in the 

Lower Apalachicola–Chattahoochee–Flint and Parts 

of the Aucilla–Suwannee–Ochlockonee River Basins 

in Georgia and Adjacent Parts of Florida and Alabama 

During Drought Conditions, July 2011

By Debbie W. Gordon, Michael F. Peck, and Jaime A. Painter

Abstract

As part of the U.S. Department of the Interior sustainable 

water strategy, WaterSMART, the U.S. Geological Survey 

documented hydrologic and water-quality conditions in 

the lower Apalachicola–Chattahoochee–Flint and western 

and central Aucilla–Suwanee–Ochlockonee River basins in 

Alabama, Florida, and Georgia during low-flow conditions in 

July 2011. Moderate-drought conditions prevailed in this area 

during early 2011 and worsened to exceptional by June, with 

cumulative rainfall departures from the 1981–2010 climate 

normals registering deficits ranging from 17 to 27 inches. As 

a result, groundwater levels and stream discharges measured 

below median daily levels throughout most of 2011. Waterquality field properties including temperature, dissolved 

oxygen, specific conductance, and pH were measured at 

selected surface-water sites.

Record-low groundwater levels measured in 

12 of 43 surficial aquifer wells and 128 of 312 Upper Floridan 

aquifer wells during July 2011 underscored the severity of 

drought conditions in the study area. Most wells recorded 

groundwater levels below the median daily statistic, and 

7 surficial aquifer wells were dry. 

Groundwater-level measurements taken in July 2011 

were used to determine the potentiometric surface of the 

Upper Floridan aquifer. Groundwater generally flows to the 

south and toward streams except in reaches where streams 

discharge to the aquifer. The degree of connection between 

the Upper Floridan aquifer and streams decreases east of the 

Flint River where thick overburden hydraulically separates 

the aquifer from stream interaction. Hydraulic separation of 

the Upper Floridan aquifer from streams located east of the 

Flint River is shown by stream-stage altitudes that differ from 

groundwater levels measured in close proximity to streams.

Most streams located in the study area during 2011 

exhibited below normal flows (streamflows less than the 

25th percentile), substantiating the severity of drought 

conditions that year. Streamflow and springflow measured at 

202 sites along 2,122 stream miles during July 20–24, 2011, 

identified about 286 miles of losing streams, about 1,230 miles 

of gaining streams, and about 606 miles of streams with no flow. 

Water-quality field properties measured at 123 stream 

and 5 spring sites during July 2011 yielded water temperatures 

ranging from 20.6 to 31.6 degrees Celsius, dissolved oxygen 

ranging from 0.47 to 9.98 milligrams per liter, specific conductance ranging from 13 to 834 microsiemens per centimeter at 

25 degrees Celsius, and pH ranging from 3.6 to 8.03.
2 Hydrologic Conditions in the Lower ACF and Parts of the ASO River Basins, Ga., Fla., and Ala., July 2011

Introduction 

In 201, the U.S. Department of the Interior 

(DOI) launched a sustainable water strategy known as 

WaterSMART to address a simple reality: “America’s 

demands for water are quickly outgrowing our supplies of 

water” (http://www.doi.gov/news/video/Interior-LaunchesWaterSMART-Initiative.cfm/index.cfm). WaterSMART stands 

for “Sustain and Manage America’s Resources for Tomorrow” 

(WaterSMART—Apalachicola–Chattahoochee–Flint 

basin Focus Area Web site, accessed October 28, 2011, at 

http://www.usgs.gov/conferences/watersmart-acf/about.html). 

As part of WaterSMART, the U.S. Geological Survey (USGS) 

is studying availability and use of water in various areas across 

the country including the Apalachicola–Chattahoochee–Flint 

(ACF) River basin in Alabama, Florida, and Georgia. 

WaterSMART focuses on improving water conservation, 

helping water-resource managers make sound decisions 

about water use, and identifying adaptive measures to address 

climate change and its effect on future water demands 

(U.S. Department of the Interior WaterSMART Clearinghouse 

Web site, accessed January 4, 2012, at http://www.doi.gov/

watersmart/html/about.html).

Severe drought during 2011 in the Southeastern 

United States resulted in record-low groundwater levels 

and streamflow in the lower ACF and western and central 

Aucilla–Suwannee–Ochlockonee (ASO) River basins. 

Documentation of these historic hydrologic conditions through 

measurement of groundwater levels, streamflow, springflow, 

and water quality of streams and springs provides essential 

data to help evaluate the effects of climatic extremes on the 

water resources of these basins and to further understand 

the exchange of water between the karstic Upper Floridan 

aquifer and overlying streams. These data will provide a basis 

for detailed calibration of groundwater-flow models used to 

simulate water-management scenarios for the region while 

also directly supporting WaterSMART.

Groundwater levels, streamflow, springflow, and water 

quality of streams and springs were measured simultaneously 

during low-flow conditions during July 18–24, 2011. Groundwater levels were measured in wells completed in the Upper 

Floridan and surficial aquifers. Streamflow measurements 

were coordinated with appropriate dam regulators to minimize 

streamflow variation caused by power generation and other 

releases. Temperature, pH, dissolved oxygen, and specific 

conductance were measured at many surface-water sites to 

help assess ecological habitat and provide an indication of 

areas where groundwater may be discharging into the stream.

Purpose and Scope 

This report documents hydrologic and water-quality 

conditions in the lower ACF and western and central ASO 

River basins in southeastern Alabama, north-central Florida, 

and southwestern Georgia during low-flow conditions in 

July 2011. Data are presented on groundwater levels, streamflow, springflow, and water-quality of streams and springs 

collected by the USGS in a multi-State, field-data collection 

effort during July 18–24, 2011. Streamflow and springflow 

were measured at 202 stream or spring sites, and groundwater 

levels were measured in 312 Upper Floridan aquifer wells and 

43 surficial aquifer wells (see appendix for locations of all 

measurement sites). 

Data and analyses for July 2011 presented in the report 

include maps showing the potentiometric surface of the 

Upper Floridan aquifer and the distribution of surficial aquifer 

water levels based on groundwater-level measurements; 

areas of gaining, losing, and dry stream reaches based on 

streamflow measurements; and the distribution of selected 

field water-quality properties in stream and spring water that 

were measured at the same time as streamflow. Groundwaterlevel and streamflow data collected during July 2011 were 

compared with similar data collected during November 2008 

(Warner and Peck, 2010) to assess the effect of drought conditions during 2011 on groundwater levels and streamflow.

Description of the Study Area

The study area is located in the Coastal Plain Physiographic Province in southwestern Georgia, southeastern 

Alabama (Houston County), and north-central Florida (fig. 1). 

The study area includes the lower ACF River basin, and the 

western and central parts of the ASO River basin. The study 

area contains all or parts of 10 hydrologic unit code (HUC) 

subbasins in the lower ACF River basin (HUCs beginning with 

0313) (Seaber and others, 1987; Jones and Torak, 2006) and 

all or parts of five HUC subbasins in the western and central 

ASO River basin (HUCs beginning with 0311 and 0312). The 

study area extends through the Gulf Trough–Apalachicola 

Embayment, a northeast-southwest trending geologic feature 

composed of fine-grained, dense, low-permeability limestone 

overlain by a thick sequence of Oligocene to Miocene sediments 

(Zimmerman, 1977). The juxtaposition of low-permeability 

sediments of the Gulf Trough–Apalachicola Embayment and 

the high-permeability limestone forms a barrier to groundwater 

flow southeastward in the Upper Floridan aquifer (Torak, and 

others, 2010. The physiography, hydrogeology, and climate of 

the area are described in detail in Torak and others (1996, 2010), 

and Torak and Painter (2006). A brief description of each is 

summarized in the following sections.
Description of the Study Area 3

MACON HOUSTON

CHATTAHOOCHEE BLECKLEY

RUSSELL MARION SCHLEY MACON

LAURENS

DOOLY PULASKI

BULLOCK DODGE STEWART WEBSTER WHEELER

SUMTER

CRISP

QUITMAN WILCOX

TELFAIR LEE BARBOUR TERRELL BEN HILL

RANDOLPH TH

JEFF

VIS

WOR

DA

TURNER

COFFEE

CLAY IRWIN

CALHOUN DOUGHERTY TIFT

HENRY

BAKER

EARLY DALE

ATKINSON BERRIEN

MILLER

GENEVA

HOUSTON MITCHELL

COLQUITT COOK

CLINCH

HOLMES

SEMINOLE

LANIER DECATUR GRADY

BROOKS

JACKSON

ON

ECHOLS

ASHINGT

THOMAS LOWNDES

GADSDEN

W

HAMILT

LEON ON

CALHOUN MADISON

SUWANNEE

BAY JEFFERSON

WAKULLA LIBERTY

COLUMBIA

TAYLOR LAFAYETTE

FRANKLIN GULF

DIXIE

GILCHRIST

LEVY

AIN

L P

YTRE HGUOD

VIDALIA

UPLAND

LLSHI NELI LLFA

BACON

TERRACES

TIFTON UPLAND 

OKEFENOKEE

BASIN

N

H

O

I

R

G

T

H

H

L

E

A

R

N

N

DS

nt e mp ar csE

no

uti

ol S

Cody Scarp

Scarp E G ID

D

R

NAR

s

G

me

ol H

yell aV

MARIANNA

LOWLANDS

0 10 20 40 MILES

Base modifed from U.S. Geological Survey 

1:100,000-scale digital data

30

0 10 20 30 40 KILOMETERS

r Rive

Lake 

Blackshear

Walter F 

George

Reservoir

Lake 

Worth

re iv R

t ni Fl

Lake

Seminole

CO

F MEXI

F O UL G

eehcoohatt ah C

re Riv

al oci hca al pA

River nee locko

Auc

ch

il

O

la Rive

Lake r

Iamonia

Lake Lake Miccosukee Jackson

C

N

OAS

PLAI

TAL

ALABAMA GEORGIA

ACF

River

basin

ASO

River

basin

Map

area

FLORIDA

85° 84° 83°

32°

31°

30°

03130006

03130007

03130009

03130004

03110204

03110202

03130010

03130008

03120002

03110203

03130012

03120001 03110103

03120003

03130011

03130013

03130005

ALABAMA

FLORIDA

GEORGIA

FLORIDA

EXPLANATION

Study area

Approximate location of the Gulf Trough–

Apalachicola Embayment (modified from 

Kellam and Gorday, 1990; Davis, 1996)

Basin boundary

Physiographic province boundary 

(modified from Clark and Zisa, 1976;

Torak and Painter, 2006)

Subbasin boundary and hydrologic unit code 03120002

Cordele Weather station and name

03130003

Jim Woodruff Lock and Dam

Cordele

Albany 3 SE

Tifton

Colquitt

Bainbridge

IN

Tallahassee

FL088756 and 

FL088758

Sylvester

GULF COASTAL LOWLANDS

TALLAHASSEE HILLS

Figure 1. Location of the study area, physiographic provinces, basin boundaries, and weather stations in the lower 

Apalachicola–Chattahoochee–Flint (ACF) River basin and in western and central parts of the Aucilla–Suwannee–Ochlockonee 

(ASO) River basin, Georgia and Florida.
4 Hydrologic Conditions in the Lower ACF and Parts of the ASO River Basins, Ga., Fla., and Ala., July 2011

Physiography 

The Coastal Plain Physiographic Province in the study 

area is made up of a dissected region of ridges and valleys, 

a low-lying karstic region, a region of dissected remnant 

hills and sand-hill ridges, and a low-lying region made up of 

coastal sediments (Torak and others, 1996; Torak and Painter, 

2006). The Fall Line Hills make up the northern part of the 

study area in Georgia and Alabama and includes the updip 

limit of the Upper Floridan aquifer. The karstic region includes 

the Dougherty Plain and Tifton Upland physiographic districts 

in Georgia, the Marianna Lowlands in Alabama and Florida, 

and parts of the Grand Ridge and Tallahassee Hills physiographic districts in Florida. The Solution Escarpment separates 

the Dougherty Plain and the Tifton Upland, and the Holmes 

Valley Scarp separates the Marianna Lowlands from the Grand 

Ridge. The Gulf Coastal Lowlands is made up of flat, lowlying coastal sediments (fig. 1; Clark and Zisa, 1976; Torak 

and others, 1996; Torak and Painter, 2006). The Dougherty 

Plain and Marianna Lowlands are flat to gently rolling and 

characterized by karstic topography, including internal 

drainage and limestone dissolution features. Numerous 

sinkholes commonly form in the area and collect runoff, 

many providing direct recharge to the Upper Floridan aquifer 

(Torak and Painter, 2006). The Solution Escarpment and 

Holmes Valley Scarp provide as much as 125 feet (ft) of relief, 

forming a topographic and surface-water divide between the 

Flint and Ochlockonee River basins (Torak and others 2010). 

The Tifton Upland and Tallahassee Hills are characterized by 

rolling hills and dendritic drainage, resulting in relief up to 

200 ft (Torak and others, 1996; Torak and Painter, 2006). 

Hydrogeologic Setting

The flow system and stream-aquifer connection in 

the study area are controlled by geology, hydraulic properties of the Upper Floridan aquifer and its confining units, 

precipitation, and groundwater withdrawals. Geologic units 

that share similar hydraulic properties are grouped into 

hydrogeologic units in the ACF River basin in Alabama, 

Florida, and Georgia, and in the ASO River basin in Georgia 

and Florida (fig. 2).

Geologic units consist of Coastal Plain sediments of 

Eocene to Holocene age, including cross-bedded clayey 

sand, sand, gravel, clay, limestone, dolomite, and limestone 

residuum. Geologic units in the lower ACF River basin in 

Alabama, Florida, and Georgia—in ascending order—are the 

Lisbon Formation, Clinchfield Sand, Ocala and Suwannee 

Limestones, undifferentiated overburden (residuum), and 

terrace and undifferentiated (surficial) deposits (Torak and 

Painter, 2006; fig. 2). Geologic units in the ASO River basin, 

in Georgia—in ascending order—are the Tallahatta Formation, Lisbon Formation, Ocala and Marianna Limestones, 

Byram Formation, Suwannee Limestone, the Hawthorn 

Group, and terrace and undifferentiated (surficial) deposits. 

Geologic units in the western and central ASO River basin 

in Florida—in ascending order—are the Tallahatta Formation, 

Lisbon Formation, Ocala and Marianna Limestones, Byram 

Formation, Suwannee Limestone, the Chattahoochee Formation, the Hawthorn Group-Torreya Formation, the Citronelle 

Formation, and terrace and undifferentiated (surficial) deposits 

(Torak and others, 2010).

Hydrologic units in both river basins—in descending 

order—are the surficial aquifer system, the upper semiconfining unit where present, the Upper Floridan aquifer, and 

the lower confining unit (Torak and Painter, 2006; Torak and 

others, 2010; fig. 2). Weathering and dissolution of limestone 

in the Upper Floridan aquifer have created secondary 

permeability and interconnections with surface water. Direct 

recharge to or discharge from the aquifer occurs through karst 

or other erosional features. Many major streams in the area 

have eroded through the overburden and are directly in contact 

with the aquifer. Indirect recharge occurs by vertical leakage 

through the upper semiconfining unit or the surficial aquifer 

system. Groundwater discharges from the Upper Floridan 

aquifer to streams where overlying residuum is thin or absent 

and where the groundwater level (hydraulic head) is higher 

than the stream or lake. Conversely, streams or lakes discharge 

into the aquifer where the stream or lake level is higher than 

the groundwater level.

The hydrologic connection between the streams, the 

overburden sediments of the upper semiconfining unit and 

the Upper Floridan aquifer in the ACF and ASO River basins 

are quite different. During the wet season when winter and 

spring rains recharge the aquifer and irrigation pumping 

is inactive, the water table is close to land surface in the 

overburden and water flows from the Upper Floridan aquifer 

into the Flint River and other streams in the basin. Some of 

the water also discharges from the overburden sediments 

into the streams in the ASO River basin (fig. 3A). During 

the dry, summer growing season when rainfall is sporadic 

and irrigation pumping is fully active, the water level of the 

Flint River drops and the water table drops in the overburden 

causing many of the streams to go dry, especially in the 

ASO River basin. As a result, some of the water that was 

originally discharged into the Flint River and other streams in 

the basins is pumped out of the aquifer to irrigate crops during 

the summer growing season (fig. 3B).

Stream and Lake Characteristics 

Streams in the Coastal Plain tend to be incised into the 

underlying aquifers and may receive substantial amounts of 

groundwater from these aquifers. In addition, the Flint River 

acts as a major regional drain for the Upper Floridan aquifer 

(Frick and others, 1996). Several reservoirs have altered the 

natural streamflow and ecosystem in the study area. Large 

reservoirs in the study area include Walter F. George Reservoir 

on the Chattahoochee River, Lake Blackshear and Lake Worth 

on the Flint River, and Lake Seminole at the headwaters of the 

Apalachicola River. The reservoirs affect downstream flows 

during extreme low and high flows (Frick and others, 1996).
Description of the Study Area 5

Many of the lakes in the karst areas of the Coastal Plain 

are well connected to the underlying aquifers. For example, 

Lakes Iamonia, Jackson, and Miccosukee in the Ochlockonee 

River basin in Florida were formed through karst dissolution 

along tributaries of the Ochlockonee River (fig. 1). The 

tributaries no longer flow to the river but have formed lakes 

that are directly connected to the Upper Floridan aquifer. 

Spring storms and tropical systems fill the lakes. Low-flow 

conditions, especially during the growing season, result in 

these lakes drying up (McGlynn, 2006).

Climate 

The study area is characterized by a humid subtropical 

climate, with temperatures and precipitation that vary 

seasonally and areally. Records at five National Oceanic and 

Atmospheric Administration (NOAA) weather stations in 

Georgia and Florida (see locations, fig. 1) document that mean

monthly temperatures for all sites during 1981–2010 were 

lowest during January, ranging from 45.9 to 50.9 degrees 

Fahrenheit (°F) and highest in July, ranging from 80.8 to 

82.4 °F (table 1 [all tables are at back of report]; Golden Gate 

Weather Services, http://ggweather.com/normals/monthly.htm, 

accessed December 28, 2011, and http://ggweather.com/

normals/GA.html, accessed December 21, 2011). Total 

monthly precipitation during the same period was lowest 

during October, ranging from 2.14 to 3.05 inches and 

highest during August, ranging from 3.9 to 8.34 inches. 

Average annual precipitation ranged from 45.9 inches at 

Cordele, Georgia (Ga.; USC00092266) to 58.1 inches at 

Tallahassee, Florida (Fla.; USC00088756). During 2011 the 

annual precipitation ranged from 25.3 inches at Colquitt, Ga. 

(USC00092153) to 38 inches at Tifton, Ga. (USC00098703).

Geologic unit

West East

Hawthorn

Group

Avon Park Formation

Surficial

aquifer system

Surficial

aquifer system

Aucilla–Suwanee–Ochlockonee River basin

Upper 

semiconfining

unit

 Ocala Limestone

Suwannee

Limestone 

Lisbon

Formation

Byram

Formation

Marianna

Limestone

Tallahatta

Formation

Lower

confining

unit

Geologic unit Hydrologic

unit

Hydrologic

unit

Terrace and

undifferentiated

(surficial) deposits 

Terrace and

undifferentiated

(surficial) deposits 

Upper

semiconfining

unitSurficial

aquifer system

Lower Apalachicola–

Chattahoochee–Flint River basin

 Ocala

Limestone 

Clinchfield

Sand

Suwannee 

Limestone

 Lisbon

Formation

Series

Lower

confining

unit

Upper

Floridan

aquifer

Upper

Floridan

aquifer

Undifferentiated

overburden

(residuum)

Alabama, Florida, and Georgia Georgia

Holocene

and

Pleistocene

Oligocene

Miocene

Eocene

Upper 

semiconfining

unit

Geologic unit Hydrologic

unit

Terrace and

undifferentiated

(surficial) deposits 

Florida

Ocala

Limestone

Lisbon

Formation

Suwannee

Limestone

Chattahoochee

Formation

Byram

Formation

Marianna

Limestone

Tallahatta

Formation

Citronelle Formation

Hawthorn Group

Torreya Formation

Lower

confining

unit

Upper

Floridan

aquifer

Figure 2. Generalized geologic and hydrologic units of the Upper Floridan aquifer and hydraulically connected 

sediments in the lower Apalachicola–Chattahoochee–Flint River basin and the Aucilla–Suwanee–Ochlockonee River 

basin, eastern Alabama, northwestern Florida and southwestern Georgia (modified from Miller, 1986; Rupert, 1990; 

Torak and Painter, 2006; Torak and others, 2010). 
6 Hydrologic Conditions in the Lower ACF and Parts of the ASO River Basins, Ga., Fla., and Ala., July 2011

NOT TO SCALE

Upper Floridan aquifer

Groundwater flow

Overburden

Well, not

pumping

Stream

Stream

goes

dry

WEST EAST

Albany

Sylvester

Sylvester

Flint

River

Water table

NOT TO SCALE

Pumping

well

WEST EAST

Albany

Flint

River

A. Wet season

B. Dry season

Flint River basin Suwanee River basin

Figure 3. Schematic cross sections showing the hydrologic connection between the Flint 

River, the overburden sediments of the upper semiconfining unit, and the Upper Floridan 

aquifer in Georgia during (A) the wet season and (B) the dry, summer growing season.
Description of the Study Area 7

Previous Investigations

Since 1996, the USGS has conducted numerous 

investigations regarding the hydrogeology of the ACF and 

ASO River basins. Torak and McDowell (1996) described 

the groundwater resources of the lower ACF River basin in 

southeastern Alabama, northwestern Florida, and southwestern 

Georgia (subarea 4 of the ACF/ACT River basin). Mosner 

(2002) described stream-aquifer relations and groundwaterlevel conditions in the lower ACF River basin during the 

drought years of 1999 and 2000 and computed aquifer contributions to streamflow for specific reaches. Jones and Torak 

(2004) described the geohydrology of the area surrounding 

Lake Seminole in southwestern Georgia and simulated the 

effects of impoundment on groundwater flow in the Upper 

Floridan aquifer. Torak and others (2006) cited physical and 

hydrochemical evidence of hydraulic connection between 

surface and groundwater beneath and around Lake Seminole 

and Jim Woodruff Lock and Dam as well as documented 

the complex exchange of surface and groundwater between 

the lake, streams, and aquifer. Torak and Painter (2006) 

described the geohydrology of the lower ACF River basin in 

southwestern Georgia, northwestern Florida, and southeastern 

Alabama. Jones and Torak (2006) simulated hydrologic 

conditions and variations in the stream-aquifer flow system 

through a drought-period irrigation season. Davis and Katz 

(2007) presented the results of a hydrogeologic investigation, 

water chemistry analysis, and groundwater flow model in 

the Tallahassee area of Florida. Torak (2009) reported that 

groundwater levels in the Upper Floridan aquifer throughout 

the ASO River basin are affected by variations in climate, 

groundwater pumping, and withdrawal amounts. Williams 

(2009) described the insights gained by using flowmeter 

logging to identify permeable zones within the Suwannee, 

Marianna, and Ocala Limestones in south-central Georgia. 

Torak and others (2010) investigated the geohydrology of the 

ASO River basin in southwest Georgia and northern Florida.

Maps published since 1990 show the potentiometric 

surface of the Upper Floridan aquifer in the study area and 

adjacent regions. Maps include a potentiometric-surface map 

of Georgia and adjacent parts of Alabama, Florida, and South 

Carolina for May–June 1990 (Peck, 1991); a potentiometricsurface map for the same area for May 1998 (Peck and 

others, 1999); and potentiometric-surface maps of the Upper 

Floridan aquifer in the lower ACF River basin for May 1998, 

October 1999, and August 2000 (Mosner, 2002). Gordon 

and Peck (2010) presented groundwater levels for the Upper 

Floridan aquifer, streamflow, and stream-stage data collected 

by the USGS (in November 2008) within a 21-county area, 

including the lower Chattahoochee–Flint and western and 

central ASO River basins in Georgia. The report includes a 

potentiometric-surface map of the Upper Floridan aquifer and 

a groundwater seepage map indicating reaches where streams 

gained or lost water or were dry. Kinnaman and Dixon (2011) 

published a potentiometric-surface map of the Upper Floridan 

aquifer in Florida and parts of Georgia, South Carolina, and 

Alabama for May–June 2010.

Station-Numbering Systems for Wells and 

Surface Water

In this report, wells in Georgia are identified using a 

numbering system based on USGS topographic maps. In 

Georgia, each 7.5-minute topographic quadrangle map has 

been given a number and letter designation beginning at the 

southwestern corner of the State. Numbers increase eastward 

through 39, and letters increase alphabetically northward 

through “Z” and then become double-letter designations 

“AA” through “PP.” The letters “I,” “O,” “II,” and “OO” are 

not used. Wells inventoried in each quadrangle are numbered 

sequentially beginning with “001.” Thus, the third well 

inventoried in the Chattahoochee quadrangle (map 06D) is 

designated 06D003. 

Surface-water sites in Georgia are assigned a unique 

number as part of an identification system that has been 

used for reporting station data in USGS reports and publications since October 1, 1950. Station numbers ascend in the 

downstream direction along the main channel. All stations 

on a tributary entering upstream from each main channel 

are listed prior to the station on the main channel and are 

assigned a lower downstream-order number than assigned to 

the surface-water station on the main channel. Each surfacewater station is assigned a unique 8- or 10-digit number. Each 

station number, such as 02351890, begins with the 2-digit 

part number “02” plus the 6- or 8-digit downstream order 

number “351890” (http://pubs.usgs.gov/wdr/WDR-WA-03-1/

pdf/ADR_F.pdf, accessed March 22, 2012). The part number 

designates the major river basin (http://il.water.usgs.gov/

annual_report/misc/cdextion.htm, accessed March 26, 2012).

In Florida and Alabama, wells are identified with a 

15-digit number consisting of the well latitude and longitude, 

separated by a zero, and ending with a number indicating 

which well it is at a particular location. For example, 

well 294337084532401 is the first well located at latitude 

29°43'37"and longitude 84o53'24". In Alabama and Florida, 

surface-water sites are identified by the downstream order 

number or by the 15-digit number consisting of the station 

latitude and longitude, separated by a zero, and ending with a 

sequence number (01 for the first site used).
8 Hydrologic Conditions in the Lower ACF and Parts of the ASO River Basins, Ga., Fla., and Ala., July 2011

Methods

Water levels were measured in wells open to the Upper 

Floridan and surficial aquifers. USGS personnel used steel or 

electric tapes to measure water levels to the nearest 0.01 ft. A 

pre-established measuring point was subtracted from the water 

level to obtain depth to water below land surface. The depth 

below land surface was then subtracted from the land-surface 

altitude to calculate the water-surface altitude. Most landsurface altitudes were estimated using topographic maps with 

a 10-ft contour interval. Calculated values for water-surface 

altitude are considered accurate to within one-half of the 

topographic contour interval or 5 ft. Contours of water-level 

altitudes that were plotted on a map of the study area represent 

the potentiometric surface for the Upper Floridan aquifer.

Streamflows were measured using traditional USGS 

methods (Rantz and others, 1982). Streamflow loss or 

gain over a reach was calculated by subtracting upstream 

flow measurements from corresponding downstream flow 

measurements over a stream segment that defines the reach. 

The resulting positive difference in streamflow approximates 

the amount of groundwater discharged to the stream (stream 

seepage); negative streamflow differences indicate stream 

recharge to the aquifer through the channel bottom. 

Field measurements of pH, dissolved oxygen, specific 

conductance, and temperature, were collected from streams 

using water-quality sondes. Published USGS protocols and 

procedures were used to calibrate the sondes and measure 

properties (Wilde, variously dated; Wilde and others, 2004). 

Hydrologic Conditions and StreamWater Quality during July 2011

Severe drought during 2011 resulted in record-low 

groundwater levels and streamflows throughout much of the 

ACF and ASO River basins. Documentation of these historic 

hydrologic conditions through measurement of groundwater 

levels, streamflow, springflow, and water-quality properties of 

streams and springs provides scientists, water managers, and 

water users with data showing the effects of climatic extremes 

on the water resources of these basins and furthers the 

understanding of water exchange between the karstic Upper 

Floridan aquifer and streams.

Precipitation

According to a scale developed by the Drought Mitigation Center (2011), southwestern Georgia, southeastern 

Alabama, and north-central Florida experienced dry to 

exceptional drought conditions during January–July 2011 

(fig. 4). In June, exceptional drought conditions were evident 

through much of the area; however, during the second half 

of July when data for this study were collected, conditions 

improved somewhat due to rain, and drought intensity 

lessened to the extreme range. During July, the 12-month 

precipitation deficit ranged from 16 to more than 20 inches 

below average in the region (Drought Mitigation Center, 

2011; http://droughtmonitor.unl.edu/archive.html, accessed 

February 7, 2012). Monthly total precipitation for 2011 and 

long-term statistics for five National Weather Service Stations 

are listed in table 1.

Data that represent cumulative departure from normal 

precipitation for the climate period 1981–2010 (Golden Gate 

Weather Services, http://ggweather.com/normals/index.htm, 

accessed December 28, 2011) were used to identify precipitation trends and define precipitation deficits that occurred 

during January 2006 to September 2011 (fig. 5). Cumulative 

departures from climate-normal precipitation were obtained by 

adding the daily departures and graphing the result—positive 

or negative—through time. A positive slope suggests 

above-normal precipitation, and a negative slope suggests 

below-normal precipitation. The cumulative-departure curves 

at four NOAA weather stations in the area—Albany 3 SE 

(GA090140), Tifton Experimental Station (GA098703), 

and Tallahassee (FL088756 and FL088758; fig. 1)—show a 

continually drying trend from 2006 to late 2008; a relatively 

stable or wetting trend for the next 2 years; followed by 

another drying trend from late 2010 to September 2011. 

During July 2011, the cumulative deficit was 17 inches at 

Albany, 18 inches at Tifton, and 27 inches at Tallahassee.

Although much of July experienced dry conditions, 

field-trip activities to measure streamflow and groundwater 

levels during July 11–18, 2011, were delayed by a rain event 

that produced 1.8 inches of rain at Albany, 1.1 inches at 

Tifton, and 2.54 inches at Tallahassee. Following this period 

of precipitation, streamflow hydrographs from the USGS 

real-time network were observed on a daily basis until flows 

had returned to base flow or near-base flow conditions, after 

which time streamflow and groundwater-level-measurements 

were initiated. During the period of data collection, minimal 

precipitation was recorded in the area; 0.39 inch of rain fell at 

Albany, 0.2 inch at Tifton, and 0.33 inch at Tallahassee. 

Prior to this investigation, Gordon and Peck (2010) documented groundwater levels and streamflow in the lower ACF 

and central ASO River basins in Georgia during a drought 

period in November 2008. At that time, the cumulative deficit 

was 10 inches at Albany and 2.2 inches at Tifton, which are 

considerably less than the deficits recorded during July 2011 

(17 inches at Albany and 18 inches at Tifton).
Hydrologic Conditions and Stream-Water Quality during July 2011 9

January 4, 2011

July 19, 2011

May 3, 2011

June 21, 2011

Intensity

No drought

Abnormally dry

Drought—Moderate

Drought—Severe

Drought—Extreme

Drought—Exceptional

EXPLANATION

Boundary of study area

ALABAMA GEORGIA

NORTH CAROLINA

VIRGINIA

SOUTH

CAROLINA

Figure 4. Intensity of drought in the southeastern United States for selected months in 2011 

(modified from Drought Mitigation Center, 2011).
10 Hydrologic Conditions in the Lower ACF and Parts of the ASO River Basins, Ga., Fla., and Ala., July 2011

Groundwater Levels

During July 18–24, 2011, water levels were measured 

in 43 wells completed in the surficial aquifer system and 

312 wells completed in the Upper Floridan aquifer. Of 

these wells, 38 are equipped with continuous water-level 

recorders—4 in the surficial aquifer system, and 34 in the 

Upper Floridan aquifer (tables 2 and 3).

Data were insufficient to generate a potentiometric surface 

for the surficial aquifer system; however, a map showing 

distribution of water levels gives an indication of areas of 

recharge and discharge (fig. 6). In general, upland areas contain 

the highest measured groundwater-level altitudes, suggesting 

recharge to the Upper Floridan aquifer, surficial aquifer system, 

or undifferentiated overburden. The lowest groundwater-level 

altitudes were measured in areas near streams and lakes, 

suggesting aquifer discharge to surface water. Measured 

groundwater-level altitudes ranged from 73 ft in Liberty County, 

Fla., to 410 ft in Turner County, Ga. Seven of the wells, all in 

Dougherty County, Ga., recorded dry conditions, indicating the 

water table had dropped beneath the depth of the well. 

Record-low water levels were measured in 12 wells, with 

all but one well located in the ASO River basin. This area of 

record-low groundwater levels defines the upland recharge 

area to the surficial aquifer system or upper semiconfining 

unit located east of the drainage divide between the ACF and 

ASO River basins. Low groundwater levels in this area results 

in less recharge to the Upper Floridan aquifer by vertical 

leakage from the surficial aquifer through the upper semiconfining unit, than recharge by vertical leakage that could occur 

during higher groundwater-level conditions. 

Hydrographs of two wells in the study area show daily 

mean groundwater levels in the surficial aquifer that were 

measured below long-term median daily levels for most of 

2011 (fig. 7). Groundwater levels rose about 10 ft at well 

07H003 and about 1 ft at well 13M007 in response to rainfall 

during the first half of July 2011 (about 4 inches at Newton 

and about 4.4 inches at Albany; http://georgiaweather.net/) 

and a likely decrease in irrigation pumping. However, during 

July 18–24, 2011, water levels in wells 07H003 and 13M007 

were still below the median daily statistic. During the previous 

study to document drought conditions in November 2008 

(Gordon and Peck, 2010), water levels in these two wells were 

near the median daily statistic.

Out of 312 Upper Floridan aquifer wells measured during 

July 2011, 128 wells attained record low levels (fig. 8). Hydrographs of three continuous recorder wells show daily mean 

groundwater levels in the Upper Floridan aquifer that were 

below long-term median daily levels for most of 2011 (fig. 9). 

The measured groundwater level in well 15Q016 near Cordele, 

Crisp County, Ga., was 13 ft below the median daily water level 

in July 2011. The water level in the same well was very close 

to the median daily statistic in November 2008, the time of 

year when annual water levels are usually at their lowest. Water 

levels usually begin to rise after November when irrigation 

pumping stops and precipitation brings recharge to the aquifer. 

Figure 5. Cumulative departure from normal (1981–2010) 

precipitation at National Oceanic and Atmospheric 

Administration Georgia weather stations (A) Albany 3 SE 

(GA090140), (B) Tifton Experimental Station (GA098703), 

and (C) Tallahassee (FL088756 and FL088758), 2006–2011. 

(See figure 1 for locations.)

Cumulative departure from normal precipitation, in inches

–25

–20

–15

–10

–5

0

5

10

B. Tifton Experimental Station

–25

–35

–30

–20

–15

–10

–5

0

5

C. Tallahassee 

J M S

2006

J M S

2007

J M S

2008

J M S

2009

J M S

2010

J M S

2011

–25

–20

–15

–10

–5

0

5

10

A. Albany 3 SE

Data collected

November 1–10, 2008

Data collected

July 18–24, 2011
Hydrologic Conditions and Stream-Water Quality during July 2011 11

GULF OF MEXICO

River

Flint

River Lake

Seminole

Lake

Blackshear Walter F 

George

Reservoir

Chattahoochee

River

Ochlockonee River

Aucilla River

Apalachicola

Base modifed from U.S. Geological Survey 0 10 20 40 MILES

1:100,000-scale digital data

0 20

30

10 30 40 KILOMETERS

0,0

0,0

0 0

0

81.03

95.35

232.6

407.5

303.2

220.7

238.94

73.33

329.81 344.53

285.85

409.89

348.32

382.54 384.72

304.36 325.56

403.83

312.93

312.63

310.85 355.83

152.41

312.36

300.01 150.55

293.26 298.02

277.26

259.69

124.54

178.42

155.18

13M007

226.72

07H003

159.07

GA

FL

AL

FL

EXPLANATION

Study area

Water level in well open to surficial aquifer—

 In feet, measured July 18–24, 2011. Datum 

 is North American Vertical Datum of 1988.

 Number of measurements indicates 

 number of wells (0,0 = two wells)

Measurement

Measurement with record low

Recorder well, site name, and measurement

403.83

298.02

07H003

159.07

85° 84° 83°

32°

31°

30°

Figure 6. Location of wells open to the surficial aquifer and water levels, including record lows, in the lower Apalachicola–

Chattahoochee–Flint River basin and in western and central parts of the Aucilla–Suwannee–Ochlockonee River basin, Georgia 

and Florida, July 2011.
12 Hydrologic Conditions in the Lower ACF and Parts of the ASO River Basins, Ga., Fla., and Ala., July 2011

Figure 7. Water levels and long-term daily median statistics for (A) well 07H003 

and (B) well 13M007. (See figure 6 for locations.)

B. Well 13M007, Worth County, Georgia

Depth to water, in feet below land surface Depth to water, in feet below land surface

A. Well 07H003, Miller County, Georgia

EXPLANATION

Median daily statistic (29 years) Period of approved data

Daily mean depth to water level

EXPLANATION

Jan.

2008

July

2008

July

2009

July

2010

July

2011

Jan.

2009

Jan.

2010

Jan.

2011

Jan.

2008

July

2008

July

2009

July

2010

July

2011

Jan.

2009

Jan.

2010

Jan.

2011

0

5

10

15

20

2

4

6

8

10

12

14

Median daily statistic (28 years) Period of approved data

Daily mean depth to water level Data collected November 1–10, 2008

Data collected

July 18–24, 2011
Hydrologic Conditions and Stream-Water Quality During July 2011 13

205.

147

149

138

96

83

48

46

298 294

293

252 286 325 155 264

244

251 256

241 234 202 157

262 194 293 212 198 212 266 207 231 252 196 85 173 204 213 199 230 191 177 104 235 191 241 181 199 231 198 185 197 188 191 179 211 190 167 205 187 162 178 180 182 165 154 170 218 153 176 198 156 148 148 154 141 202 167 205 188 176 153 143 190 157 152 151 143

178 156 152 141 198 163 159 154 140 148146 184 154 147 196 141 118 132 182 154 135 178 196 139 132 154 177 140 169 212 158 137 168 114 46 174 62 123 151 106 71 115 227 172 159 56 53 142 122 149 136 121 143 90 57 52 153 154 147 56 140 148 150 65 57 123 113 90 91 57 122 106 99 66 52 162 119 97 56 91 99 113 73 60 130 61 91 103 63 124 95 64 62 133 108 89 88 84 98 84 82 89 85 107 83 82 64 102 79 71 106 79 77 78 88 79 127 90 77 81 65 76 74 78 79 79 76 67 86 79 66 61 74 77 61 74 73 78 47 80 74 77 72 71 76 86 65 78 72 74 76 76 67 98 70,68 84 76 70 74 76 55 78 75 71 84 82 58 96

71 75 74 67 72 89 78 58 86 76 56 61

95 47 54

49

29

19

26 20 24

19

19

6

7

25 7

29 26 4

30 3

53

29.8 6 23 5

18 13

6 9

4 5

10

7 3

178

298.31 294.31

(! !(

290

292.79

!(

252.07 280

!(

260

0

155.15 285.81 (! (! 27

325.01!( 320

264.24

!( 243.89

(! 0

0

29

0

270

31

28

0

256.07 251.14 30

(! (!

233.65

(!

250

157.27

241.39 (!

!( 202.34 !( 262.37 (! 293.1 0

!( !( 24

194.09 212.11 (! 205.173 !( 197.9

#* 21

207.03 266.01 211.63!(204.52 0(! 198.55 196.18 (! 230.56 (! (! (! !( 0

85.44

18

!( (!213.4 252.13 191.05 177.06 !( 172.96 (! (! (! 0

230.07 23

241.18 235.03 (! 104.16

!( 180.9 191.24 (! 198.83 (! (! (! 231.22 (! (! 178.04 197.68 185.54 197.18 !( 44.85

(! 147.368 (! (! !( 179 (!

(! 188.33 *# 186.92 211.36 ( (! 22

191.01 (! !

189.7 0

218.38 0

179.92

!( 182 153.92

15

170.33 !( !( 177.83 (! 162.13

!( !( 27.84

!( !( !( 167.3 !( (!!( 205.27 0

40.79 30

165.22 (! 21

155.84 201.68 198.3 !( 148.25 176.16 (!

40

14!(7.86!( 166.69 (! !( 153.63 141.54 204.76 (! !((!15!(!(!( 176.4 2.7!( !( !( !( 0 190 187.82 (!41.3 177.59 155.73 (! !(142.92 20

!( 190.31 !( ! 0

(! 152.94 ( !( !( !( 198.07 152.1 !( 180 19

156.62 141.02 (! 117.91 141.26 139.9 183.88 (! 159.05 !(163.27 (!

(! (! 146.5 147.11 148.14!( (! 195.83 (! .08 154.35 (! !( 40 !( 178.31

!( (! 153.79 !( 132.2 134.71 138.59 (! 195.85 (! 181.97 149.205 140 (! 154.17

19(!0 #* 132.21 50

(! 168.96 0

140.26 !( 177.48 (!

158.1 (! 45.86 137.964 1 18

#* !( (! 60

!( 136.65 167.8

(! 170

!( 114.33 62.11

(! (! 70.96 174.28 123.06 115.21 0

(! (! (! 150.59 160

105.83 (! 226.96 21

0

(! 159.49 !( 55.92 172.25

19

20

0

!( !( (! 0

210

(! 211.87 149.52 13

53.06 !(

22

0

!( 136 56.97 180

!( 142.32 (! 121.93 90.01 142.77 (! 0

(! 120.74 (!

17

!( !( 200

190

153.6 147.27 #* (! 52.13

(! 55.62 180

(! 147.56 140.56 160

(! 153.01 !( !( (!

150(!150.34 112.92 64.81 !(

12

89.97 0

(! 57.069 90

122.94 !( !( (! 95.981 90.81 !( !( 57.08

161.96 122.44 105.6 (! 65.78 51.9 (!

(! 99.2 !( !( 61.3455.57 (! 118.95 96.965 1

61.01 (! !( !( !( 59.8 60

90.71 99.04 112.89 !(60

(! !( !( (!

10

72.77 !( 130.39 12(!4.03 91.02 89.45 88.12 84.08 !( 60.05 (! 63.03 64.09 132.86 (! (! 83.296 !( !( *# !( !( 102.7 (! 62.07 95.12 89.74 (! (! 107.77 97.56 82.54(! !( (!102.411 84.5(! 79.42 (! 84.85 !( 79.47 (! 82.53 82.43

(! (! (! 107.12 !( !( 63.78

106.319 71.14 !( !( !( 0

77.42 87.87 77.87 (! (! 10

(! (! (! (! 76.84 90.04 127.117 78.91 !( 66.64 81.27 !( 76.39 !( 65.37 !( (! 79.17

!( 77.81 65.87 72.87 (! (! !( 86.459 !( 73.62 !(76.44 !( 77.65!( 90 70

74.2 61.23 (! 60.67 77.21 !( 74.31 !(70

!( 70

!( 50

(! 74.52 76.7 !( !( 79.4 !(

60

47.01 78 70

!(

.93 (! !( 71.72 (! 71.49(! 66.71 85.948 80

79.918 (! !(64.97

72.25 74.16 75!(.81 77.915 97 (! (! (! .8175.83 76.49 !( 84.25

!( 70

!(

76(!.27 (! 54.73 60 69.6 95.64 82.32 77.66 (! 69.66!(5 ! !( 80(!( (! 83.985 (! (! (! (! 67.53 70.48 (! !(!

74.62

90

!( 57.79 ( !(

85.88!( 80

!(

70(!89

3 (! .31 74.1570.67 67.13 !( 75.21(! 57.69 60.934 !(75.624 77.81 !( 56.25 (! (!

47.246

94.882 (!

!(

53.615

!(

!( 47.884 49.273 #* *#

46.217

!(

28.87

(!18.6 !(

60

24.3 19.97 (!(!

26.27

18.99 19.21(!

5.95

50

!(

6.77

25.357 (! 6.57 40

(!

3.72 28.53 26.06

!(29.788 !(

30

(! (! 3.36

(! 52.976 23.01 (! 29.795 !( (! 6.16

(! 4.53

(!

20

17.81

!(

12.65

(! 9.72 10

(! 6.13

(!

3.75 4.59 !( !(

10

!(

2.65 6.88 !( !(

River

Lake 

Blackshear

Walter F 

George

Reservoir

River

k

t

ee

n

r

i Fl

C gnirpS

Lake 

Seminole

XICO

OF ME

LF GU

eehcoohatt ah C

re iv R al oci hca al pA

keer

Lake C

Worth

River ee n ko oc hl

A

c

u

O

cilla River

eehcahwasakci hC

M

M

u

u

c

c

k

k

a

a

l

l

e

o

e

ochee Creek

Creek

MACON

HOUSTON MACON

CHATTAHOOCHEE BLECKLEY

MARION LAURENS

RUSSELL SCHLEY

DOOLY PULASKI

BULLOCK SUMTER WHEELER STEWART DODGE WILCOX

WEBSTER

BARBOUR TELFAIR QUITMAN

CRISP

TERRELL LEE

RANDOLPH

JEFF

BEN

VIS

HILL

DA

TURNER

IRWIN CLAY DOUGHERTY

WORTH TIFT

COFFEE

HENRY

BAKER EARLY

DALE

MITCHELL ATKINSON BERRIEN HOUSTON

MILLER COOK

GENEVA COLQUITT

SEMINOLE

CLINCH

LANIER

HOLMES

GRADY

JACKSON

DECATUR

THOMAS BROOKS LOWNDES

ON

ECHOLS

WASHINGT

MADISON GADSDEN HAMILTON

LEON

CALHOUN BAY

LIBERTY SUWANNEE

WAKULLA

JEFFERSON

TAYLOR LAFAYETTE

GULF FRANKLIN

DIXIE

GILCHRIST

CALHOUN

Base modifed from U.S. Geological Survey 0 10 20 40 MILES

1:100,000-scale digital data

30

0 10 20 30 40 KILOMETERS

l l l

l

l

l

l l

l

l

l

l l

l l

l l

300

250

200

150

100

200

150

50

200

100

50

50

AL

FL

GA

FL

USGS streamgaging station

EXPLANATION

Potentiometric contour—Shows altitude 

 at which water level would have stood in 

 tightly cased wells, July 2011. Hachures 

 indicate depression. Contour interval 

 10 feet. Datum is NAVD 88

General direction of groundwater flow

50

Well location

Approximate location of the Gulf Trough–

 Apalachicola Embayment (modified from 

 Kellam and Gorday, 1990; Davis, 1996)

Measurement

Measurement with record low

18H016 Recorder well and site name

85° 84° 83°

32°

31°

30°

15Q016

18H016

11K003

300740084293001

Figure 8. Potentiometric surface and record low water levels of the Upper Floridan aquifer in the lower Apalachicola–

Chattahoochee–Flint River basin and western and central parts of the Aucilla–Suwanee–Ochlockonee River basin, Georgia 

and Florida, July 2011.
14 Hydrologic Conditions in the Lower ACF and Parts of the ASO River Basins, Ga., Fla., and Ala., July 2011

Figure 9. Water levels and long-term daily median statistics for (A) well 15Q016, (B) well 11K003, 

(C) well 18H016, and (D) well FL300740084293001, 2008. (See figure 8 for locations.) Depth to water, in feet below land surface Depth to water, in feet below land surface

A. Well 15Q016, Crisp County, Georgia

B. Well 11K003, Dougherty County, Georgia

EXPLANATION

Median daily statistic (6 years) Period of approved data

Daily mean depth to water level

Jan.

2008

July

2008

July

2009

July

2010

July

2011

Jan.

2009

Jan.

2010

Jan.

2011

50

60

70

80

90

15

20

25

30

35

40

EXPLANATION

Median daily statistic (28 years) Period of approved data

Daily mean depth to water level

Jan.

2008

July

2008

July

2009

July

2010

July

2011

Jan.

2009

Jan.

2010

Jan.

2011

Lowest water level recorded prior 

 to 1999—42.5 feet on June 23, 1981

Data collected

November 1–10, 2008

Data collected

July 18–24, 2011
Hydrologic Conditions and Stream-Water Quality during July 2011 15

Figure 9. Water levels and long-term daily median statistics for (A) well 15Q016, (B) well 11K003, 

(C) well 18H016, and (D) well FL300740084293001, 2008. (See figure 8 for locations.)—Continued Daily altitude of water above NGVD 29, in feet Depth to water, in feet below land surface

C. Well 18H016, Cook County, Georgia

D. Well 300740084293001, Wakulla County, Florida

Figure 9. Water levels and long-term daily median statistics for (A) well 15Q016, (B) well 11K003, 

(C) well 18H016, and (D) well 300740084293001, 2008. (See figure 8 for locations.)—Continued

EXPLANATION

Median daily statistic (42 years) Period of approved data

Daily mean depth to water level

Jan.

2008

July

2008

July

2009

July

2010

July

2011

Jan.

2009

Jan.

2010

Jan.

2011

Jan.

2008

July

2008

July

2009

July

2010

July

2011

Jan.

2009

Jan.

2010

Jan.

2011

170

175

180

185

36

35

34

33

32

31

30

29

28

27

EXPLANATION

Daily maximum altitude above NGVD 29

Period of approved data

Period of provisional data

Data collected

November 1–10, 2008

Data collected

July 18–24, 2011
16 Hydrologic Conditions in the Lower ACF and Parts of the ASO River Basins, Ga., Fla., and Ala., July 2011

Water levels in the Upper Floridan aquifer were 

generally lower in July 2011 than in November 2008. In 

November 2008, the water level in well 11K003 south of 

Albany in Dougherty County, Ga., was 4 ft below the mean 

daily statistic, whereas during July 2011 the water level was 

9 ft below. In well 18H016 at Adel, Cook County, Ga., water 

levels were 9 ft and 10 ft below the median daily statistic 

during November 2008 and July 2011, respectively (fig. 9). 

Near Crawfordville, Wakulla County, Fla., groundwater levels 

at recorder well 300740084293001 declined throughout most 

of 2011 (daily median statistic not available for this well). 

Water levels in four Upper Floridan aquifer recorder 

wells rose 0.8 to 9 ft during the first half of July in response 

to rainfall and possible reduction in pumping. The largest 

rise was at Cordele, Crisp County, Ga., where rainfall was 

4.1 inches during July (table 1) and water levels in well 

15Q016 in Crisp County, Ga., rose about 9 ft (fig. 9). Despite 

these rises, water levels in three of the wells remained below 

the median water-level statistic at the time of measurement. 

(A median water-level statistic was not available for well 

300740084293001 in Wakulla County, Fla.)

A potentiometric-surface map was constructed from 

groundwater-level altitudes at 312 wells measured in Alabama, 

Florida, and Georgia during July 18–22, 2011 (fig. 8, table 3), 

to better understand groundwater flow in the Upper Floridan 

aquifer. The map shows an imaginary water surface that 

represents the altitude at which water would have stood in 

tightly cased wells if open to the Upper Floridan aquifer. The 

July 2011 potentiometric surface is similar to the May 2010 

map in Florida and Georgia (Kinnaman and Dixon, 2011), the 

November 2008 map in Georgia (Gordon and Peck, 2010), and 

the May to June 1995 map in Florida (Mahon and others, 1997). 

The July 2011 map in figure 8 represents a larger area than 

was constructed for the November 2008 potentiometric surface 

(Gordon and Peck, 2010) by including two additional counties in 

Georgia, eight counties in Florida, and one in Alabama (fig. 1). 

Water-level contours of the potentiometric surface of 

the Upper Floridan aquifer (fig. 8) indicate general directions 

of groundwater flow and areas of recharge and discharge. 

Recharge to the aquifer generally occurs in areas of high 

hydraulic potential, such as the area located along the northwestern extent of the mapped potentiometric surface. Areas of 

converging potentiometric contours, such as around a pumped 

well or well field, and areas where potentiometric contours 

bend upstream as the contour crosses the stream, represent 

areas of groundwater discharge. In Georgia, groundwater 

generally flows southeastward on the western side of the Flint 

River, southwestward on the eastern side of the Flint River, 

and south and southeastward from the basin divide between 

the ACF and ASO River basins in the eastern part of the 

study area. In the Florida and Alabama part of the study area, 

groundwater generally flows to the south and southeast.

One of the most prominent features of the potentiometric 

surface is the Gulf Trough, a subsurface feature consisting of 

low-hydraulic conductivity formations that cause hydraulic 

gradients to abruptly steepen across the trough from northwest 

to southeast. The region of the Gulf Trough is identified on the 

potentiometric surface (fig. 8) with tightly spaced potentiometric contours, particularly the 60- to 170-ft contours in the 

east-central part of the map area. 

Other areas of the potentiometric surface containing steep 

hydraulic gradients are located near stream channels, and these 

gradients decrease with distance from streams to the south 

and east of the Flint River (Mosner, 2002). The 70-ft closed 

water-level contour indicates a large depression in the potentiometric surface in the area north of Lake Seminole located 

in the southwestern corner of Georgia. A similar depression 

is shown on the potentiometric maps from October 1999 

(Mosner, 2002) and November 2008 (Gordon and Peck, 2010). 

This depression represents an area where the potentiometric 

surface has been lowered by extensive groundwater irrigation 

withdrawals (Torak and Painter, 2011, p. 16, fig. 7). 

According to Hicks and others (1987), Mosner (2002), 

and Torak and Painter (2006), many of the major streams in 

the ACF River basin (fig. 1) are incised through the overburden into the Upper Floridan aquifer and provide a direct 

connection for groundwater and surface-water exchange. 

When the aquifer water level exceeds the stream stage, 

groundwater discharges from the aquifer to streams through 

springs located along or in the streams, or through diffuse 

channel leakage. When stream stage exceeds the aquifer water 

level, streamflow recharges the aquifer. 

The Upper Floridan aquifer discharges to streams in most 

of the area located to the west of the Flint River. As mentioned 

previously, aquifer discharge of groundwater to streams is 

indicated on the map of the potentiometric surface with waterlevel contours that “bend” upstream as the contour crosses 

the stream, for example, along the Flint River in Dougherty 

County, Ga. At a spring in Dougherty County south of Albany 

(fig. 10; see appendix for location of spring 12K1336), 

groundwater levels declined below stream stage and allowed 

streamflow in the Flint River to invade the spring run and 

recharge the Upper Floridan aquifer. Under normal conditions 

this spring discharges to the Flint River and appears blue in 

color (fig. 10A); however, during the drought conditions of 

July 2011, river water flowed into the aquifer through the 

spring run, giving the water a muddy appearance (fig. 10B). 

Several stream reaches in the area west of the Flint 

River were losing water to the Upper Floridan aquifer during 

July 2011 as groundwater levels declined below stream stage 

and, in some instances, below stream channel bottoms. These 

“losing” stream reaches are indicated on the map of the 

potentiometric surface with water-level contours that “bend” 

downstream as the contour crosses the stream (fig. 8). In the 

southern part of Miller County, Ga., Spring Creek had some 

losing reaches and ceased flowing, becoming a series of disconnected pools separated by dry stream reaches (Lynn J. Torak, 

Hydrologist, U.S. Geological Survey, Atlanta, Ga., written 

commun., June 2012). Chickasawhachee, Muckalee, and 

Muckaloochee Creeks also exhibited losing-stream conditions. 
Hydrologic Conditions and Stream-Water Quality during July 2011 17

Direction of flow

A

B

Bald cypress

Bald cypress

Figure 10. Spring (12K133S) south of Albany, Georgia, (A) April 2003 and (B) July 2011.
18 Hydrologic Conditions in the Lower ACF and Parts of the ASO River Basins, Ga., Fla., and Ala., July 2011

The degree of connection between the Upper Floridan 

aquifer and streams decreases east of the Flint River where 

the overburden is thicker as the Solution Escarpment is 

approached (fig. 3). West of the Flint River in the upland 

areas of the aquifer near its outcrop area, the Upper Floridan 

aquifer is well connected to the streams. According to Gordon 

and Peck (2010), the decreased connection is evident where 

stream-stage altitudes measured east of the Flint River during 

November 3–6, 2008, were not similar to adjacent groundwater-level altitudes. Of the streams that were flowing (not 

dry) in 2008, the stream stages were as much as 160 ft higher 

in altitude than the groundwater level in nearby Upper Floridan 

aquifer wells. Many of the same streams that were measured 

during November 2008 also were visited during July 2011, but 

measurements could not be made because the streams were 

dry; therefore, stream-stage data were not available. 

A comparison of water levels from 180 Upper Floridan 

aquifer wells measured in Georgia during 2008 and 2011 

(table 3) shows that 149 had water levels that were lower in 

2011 than in 2008: 3 wells were lower by more than 22 ft, 

19 wells were lower by 10 to 22 ft, 29 wells were lower by 

5 to 10 ft, 98 wells were lower by 0 to 5 ft; and 31 wells had 

water levels that were higher in 2011 by 0 to 5 ft (fig. 11). 

The generally lower water levels in 2011 can be attributed to 

a larger precipitation deficit and to greater irrigation pumpage 

and evapotranspiration, because measurements were made in 

July during the peak of the summer growing season. Water 

levels in 2008 were collected during November at the end 

of the irrigation season. Water levels appear particularly low 

during July 2011 in Irwin County, Ga., along the eastern 

boundary of the study area (figs. 1 and 11). 

Streamflow

Streamflow consists of surface runoff, interflow, and base 

flow. Stream base flow is the portion of streamflow contributed 

by groundwater discharge. During periods of low precipitation, all or most of streamflow is base flow. Near base-flow 

conditions were assumed to prevail when measurements were 

made during July 2011. Although some rain fell during the 

7 days prior to the measurement period, measurements were 

collected after the peak discharge subsided and discharge was 

below the median daily statistic (fig. 12). 

Streamflows measured at 202 sites in the study area 

during July 20–24, 2011, were used to identify stream reaches 

that were (1) gaining flow from groundwater discharge to the 

stream (stream seepage); (2) losing streamflow by leakage 

through the stream channel into the Upper Floridan aquifer; 

and, (3) dry, because the water level of the aquifer was below 

the bottom of the stream channel (table 4, fig. 13). The net 

gain or loss in streamflow (stream seepage) was calculated by 

subtracting an upstream streamflow measurement from the 

downstream streamflow measurement along a particular reach. 

A positive value represents the amount of groundwater that 

discharges to the stream along a specific stream reach. Negative values represent losing stream reaches where water from 

the stream is recharging the aquifer. For example the streamflow at upstream site 02350430, along the Flint River south of 

Lake Blackshear, was 1,400 cubic feet per second (ft3

/s) and 

at downstream site 02350490 was 1,390 ft3/s. Subtracting the 

flow at the upstream site from the flow at the downstream site 

yields a seepage value of –10 ft3/s (1,390–1,400=–10). 

According to Sauer and Meyer (1992), streamflow 

measurements typically have errors between 2 and 8 percent; 

in this study, an error of 8 percent was assumed inherent 

to the streamflow measurements, which yields a range of 

streamflows associated with each measurement at a stream 

site (table 4). At some stream sites, measurement error results 

in a range of estimated streamflow that identifies the reach as 

possibly gaining or losing (fig. 13, table 4). This condition is 

illustrated by examining flows and associated error ranges for 

the aforementioned two sites—upstream site 02350430, along 

the Flint River south of Lake Blackshear, and downstream 

site 02350490. Although the computed stream seepage value 

for that stream reach was –10 ft3/s, flow conditions for the 

reach can span both gaining and losing conditions when the 

8-percent error range is taken into account:

• Losing conditions—streamflow at downstream site 

02350490 could be as low as 1,279 ft3/s and upstream 

site 02350430 could be as high as 1,512 ft3/s, yielding 

a loss in flow of –233 ft3/s (1,279–1,512= –233). 

• Gaining conditions—streamflow at downstream 

site 02350490 could be as high as 1,501 ft3/s and at 

upstream site 02350430 could be as low as 1,288 ft3/s, 

which would yield a gain in flow of 213 ft3/s 

(1,501–1,288=213).

At the 202 stream and spring sites, flows were measured 

along 2,122 stream miles (mi). The measurements identify 

286 mi (13 percent) of losing streams, 1,230 mi (58 percent) 

of gaining streams, and 606 mi (29 percent) of streams with 

zero flow. Of the 43 stream and spring sites that were visited, 

about 20 percent were dry. All but five of the dry stream sites 

are located east of the Flint River where little or no direct 

connection occurs between streams and the Upper Floridan 

aquifer (fig. 13). Most of the dry stream reaches are headwater 

reaches, except in the Alapaha and Little River subbasins in 

the northeastern part of the study area where the majority of 

reaches were dry. The northeastern part of the study area also 

had low groundwater levels during July 2011, suggesting that 

groundwater and surface water are well connected. Gordon 

and Peck (2010) reported 24 dry reaches and 5 losing reaches 

out of 87 reaches that were measured during November 2008. 

Of the 115 sites that were measured during 2008 and 2011, 

71 were lower in 2011 than in 2008, 16 were higher, and 

28 were dry during both years (table 4). 
Hydrologic Conditions and Stream-Water Quality during July 2011 19

GULF OF MEXICO

River

Flint River

Lake

Seminole

Lake

Blackshear

Walter F 

George

Reservoir

Chattahoochee

Apalachicola River

Ochlockonee River

Aucilla River

0 10 20 40 MILES Base modifed from U.S. Geological Survey 

1:100,000-scale digital data

0 20

30

10 30 40 KILOMETERS

85° 84° 83°

32°

31°

30°

GA

FL

AL

FL

EXPLANATION

Study area

Difference in water level from 

 November 2008 to July 2011—In feet

Weather station and name Colquitt

–30 to –22

> –22 to –10

>–10 to –5

>–5 to 0

>0 to 5

Tifton

Cordele

Colquitt

Tallahassee

Albany 3 SE

Bainbridge IN

Figure 11. Location of wells open to the Upper Floridan aquifer showing the difference in water levels from November 2008 to 

July 2011 in the lower Apalachicola–Chattahoochee–Flint River basin and in western and central parts of the Aucilla–Suwannee–

Ochlockonee River basin, Georgia.
20 Hydrologic Conditions in the Lower ACF and Parts of the ASO River Basins, Ga., Fla., and Ala., July 2011

Figure 12. Discharge for U.S. Geological Survey streamgages (A) 02316000, (B) 02349900, 

(C) 02353400, and (D) 02329000, 2008–2011. (See figure 13 for locations.)

A. Streamgage 02316000, Berrien County, Georgia

B. Streamgage 02349900, Dooly County, Georgia

Discharge, in cubic feet per second Discharge, in cubic feet per second

Jan.

2008

July

2008

July

2009

July

2010

July

2011

Jan.

2009

Jan.

2011

EXPLANATION

Median daily statistic (48 years) Period of approved data

Discharge

Jan.

2010

Jan.

2008

July

2008

July

2009

July

2010

July

2011

Jan.

2009

Jan.

2011

EXPLANATION

Median daily statistic (53 years) Period of approved data

Discharge

Jan.

2010

20,000

15,000

10,000

5,000

0

–5,000

1,000

100

10

1

3,000

2,000

Data collected

July 18–24, 2011
Hydrologic Conditions and Stream-Water Quality during July 2011 21

Figure 12. Discharge for U.S. Geological Survey streamgages (A) 02316000, (B) 02349900, 

(C) 02353400, and (D) 02329000, 2008–2011. (See figure 13 for locations.)—Continued

C. Streamgage 02353400, Calhoun County, Georgia

D. Streamgage 02329000, Leon County, Florida

Discharge, in cubic feet per second Discharge, in cubic feet per second

Figure 12. Discharge for U.S. Geological Survey streamgages (A) 02316000, (B) 02349900, 

(C) 02353400, and (D) 02329000, 2008–2011. (See figure 13 for locations.)—Continued

Jan.

2008

July

2008

July

2009

July

2010

July

2011

Jan.

2009

Jan.

2011

EXPLANATION

Median daily statistic (35 years) Period of approved data

Discharge

Jan.

2010

Jan.

2008

July

2008

July

2009

July

2010

July

2011

Jan.

2009

Jan.

2011

EXPLANATION

Median daily statistic (85 years) Period of approved data

Daily mean discharge 7-day, 10-year low flow

Jan.

2010

1,000

100

10

10,000

1,000

100

40,000

20

5,000

5

Data collected

July 18–24, 2011
22 Hydrologic Conditions in the Lower ACF and Parts of the ASO River Basins, Ga., Fla., and Ala., July 2011

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0

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0

0

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0

0

0

0 0 0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

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0

0

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0

56 22

89

75

78

29

40

11

18

16

186

1.3

238

686

3.1

170

100126 325

293

220

1.1

5.2

258

259

175

105

160 213

220

4.6

2.9

846

107

2.5

1.9

108

104

7870

7750

8490

1.17

1.28

11.9

4.76

83.7

26.3

61.9

40.4

1.68

2.36

14.6

21.2

11.3

13.7

32.7

8470

6150

7860 8300

8480 8740

8690

8870

7910

8230 7870 7970

7630

1.22 81.2

43.8

10.4

2.96

2630

25207.73

2400

24.5

20.2

51.3

1960

2070

1930

2000

2030

2270

2020

18800.28

1280

11.6

14.2

97.887.6

14.1

1440

7.56

1500

3.72

1.21

1390 1400

7.43

41.8

14.51.74

18.7

8.79

1610

6860

4230

26.7

40.2

4.15

3.37

2.14

1.15

8.02

7.05

0.594

0.892

-0.37

0.316

0.038

0.585

0.442 0.051

0.084

14.77

18.79

19.19

LEON

JACKSON

LEE

EARLY

LIBERTY

WORTH

DECATUR GRADY THOMAS

TIFT

IRWIN

CALHOUN

HOUSTON

SUMTER

DOOLY

COLQUITT

GADSDEN

MITCHELL

BAKER

BERRIEN

WAKULLA

WILCOX

CRISP

MILLER COOK

TERRELL TURNER

CALHOUN

DOUGHERTY

BEN HILL

GULF

SEMINOLE

COFFEE

9110

9160 8980 5.26

7910

8040

8460 8110

8000

7990

2080

2010

1090 1460

91.124

0.042

X

X

X

X

X

X X

X

X

X

X

X

X

X

X

X

X

X

X X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X X

X X

X

X

X

X

X X

X

X

X

X X

X

X

X

X

X

X

X

X

X

X

X

X XX

X

X

X X

X

X

X

X

X

XX

X

X

X

X

X X

X X

X

X

X

X

X

X

X

X

X

X

X

X X

X

X X

X

X X

X X

X

X

X

X

X

X

X

X X

X X X

X

X

X

X

X

X

X X

X X

X

X

X

X X

85° 84° 83°

32°

31°

30°

846

107

18.7 8.79

02349900

 2.9

14.1

0

0

0

0

0

0

0 0

0 0 0

0

0

0

0

0

0

0

0 0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0 0

0 0

0

0

0

0

0

0

0

89

02353400

75 

02329000

 56

02316000

 0

78

29 40

11

18

16

186

238

686

170

126 100 325

293

220

1.1

5.2

258

259

175

105

160

213

220

4.6

2.5 1.9

7.05

108

91.9

24.1

104

1.17

83.7

26.3

61.9

40.4

14.6

21.2

11.3

1.22

81.2

43.8

10.4

2.96

2,630

7.73 2,520

2,400

24.5

20.2 51.3

1,960

2,080

2,070

1,9302,000

2,030 2,270

2,020

2010 0.28

1,880

1,280

11.6

14.2

97.8 87.6

1,440

7.56

1,500

3.72 1,090

1,460

1,390 1.21

1,400

7.43

41.8

1.74

14.5

1,610

6,860

4,230

26.7

40.2

4.15

3.37

2.14

1.15

8.02

0.594

–0.37

0.316

0.038

0.585

0.442 0.051

0.084

14.77

18.79

19.19

EXPLANATION

Discharge location and amount, in 

 cubic feet per second, July 2011—

 Measurement has ± 8 percent margin 

 of error (Sauer and Meyer, 1992)

Stream reach

Measurement site—No gage

Spring

USGS streamgaging station

Gaining 

Losing 

Dry

03120002 Subbasin hydrologic unit code

100

2,630

03130008

03130011

See facing

page

03120002

03110203

03110204

03130006

03130007

03130009

03130010

03130012

03130004

03110202

03130005

GA

FL

AL

FL

7.73

03110103

03120003

03120001

03130013

03130003

GULF OF MEXICO

River

Flint River

Lake

Seminole

Lake 

Blackshear

Walter F 

George

Reservoir

Chattahoochee

Apalachicola River

Ochlockonee River

Aucilla River

0 10 20 40 MILES

Base modifed from U.S. Geological Survey 1:100,000-scale digital data

0 20

30

10 30 40 KILOMETERS

Figure 13. Discharge measurements made in the lower Apalachicola–Chattahoochee–Flint River basin and western and central 

parts of the Aucilla–Suwanee–Ochlockonee River basin, Georgia and Florida, showing gaining, losing, and dry stream reaches 

during July 2011.
Hydrologic Conditions and Stream-Water Quality during July 2011 23

Water Quality of Streams and Springs

Water-quality field properties, including pH, dissolved

oxygen, specific conductance, and temperature, were measured 

at 123 stream and 5 spring sites during July 20–24, 2011 

(table 5). Temperature ranged from 20.6 to 31.6 °C (fig. 14). 

Low temperatures may suggest a greater amount of groundwater than surface water. The five samples with the lowest 

temperatures (between 20 and 22 °C; three north of Lake 

Seminole and two west of Lake Seminole) were collected 

from springs, suggesting groundwater discharge. High 

temperature is typically associated with low dissolved oxygen 

and high specific conductance. 

Dissolved oxygen concentrations ranged from 

0.47 to 9.98 milligrams per liter (mg/L). Organisms become 

stressed if dissolved oxygen levels drop below 4 to 5 mg/L 

and cannot live if dissolved oxygen is below 1 mg/L. 

(http://peer.tamu.edu/curriculum_modules/Water_Quality/

module_3/lesson3.htm, accessed January 9, 2012). A small 

tributary of the Ochlockonee River had an unexpectedly 

low dissolved oxygen level of 0.47 mg/L even though the 

temperature at that site was not high and specific conductance 

was not low. Ten samples had dissolved oxygen concentrations 

below 4 mg/L, and 19 samples had dissolved oxygen concentrations between 4 and 5 mg/L (fig. 15). 

Specific conductance ranged from 13 to 834 microsiemens per centimeter at 25 degrees Celsius (μS/cm at 

25 °C). Twenty-seven samples had specific conductance 

values below 70 μS/cm, suggesting recent recharge or 

rainwater. The three samples with the highest specific 

conductance values (greater than 500 μS/cm) were collected 

from the Ochlockonee River, which could suggest a high 

percentage of groundwater in the Ochlockonee River, but is 

more likely due to surface runoff (fig. 16).

Values of pH ranged from 3.6 to 8.03. Three samples 

had pH values less than 5.0 and all are located on tributaries 

of the Chipola River in Calhoun County, Florida (fig. 17). 

The normal range of stream pH is between 6 and 8; the 

reproduction of fish becomes affected in water with a pH 

below 5 (http://ga.water.usgs.gov/edu/phdiagram.html, 

accessed January 10, 2012). Low pH may also indicate 

recent recharge of rainwater. 

Figure 13. Discharge measurements made in the lower 

Apalachicola–Chattahoochee–Flint River basin and western 

and central parts of the Aucilla–Suwanee–Ochlockonee River 

basin, Georgia and Florida, showing gaining, losing, and dry 

stream reaches during July 2011.—Continued

0

22

3.1

1.28

11.9

4.76

1.68

2.36

13.7

32.7

8,470

6,150

7,750

7,860

8,300

8,480

8,740

8,690

8,870

8,980

5.26

9160

7,910

8,040 7,910

8,460

8,110

8,230

7,870

7,970

8,000

7,630

7,870

7,990

0.892

1.3

4,970

9,110

8490

0.042

03130011

EXPLANATION

Discharge location 

 and amount, in 

 cubic feet per 

 second, July 2011—

 Measurement has 

 ±8 percent margin 

 of error (Sauer and 

 Meyer, 1992)

Stream reach

Measurement 

 site—No gage

Spring

USGS stream-

 gaging station

Gaining 

Losing 

Dry

03120002 Subbasin hydrologic 

 unit code

100

2,630

7.73

0 5 10 MILES

0 5 10 KILOMETERS

N

Figure 13. Discharge measurements made in the lower 

Apalachicola–Chattahoochee–Flint River basin and western 

and central parts of the Aucilla–Suwanee–Ochlockonee River 

basin, Georgia and Florida, showing gaining, losing, and dry 

stream reaches during July 2011.—Continued
24 Hydrologic Conditions in the Lower ACF and Parts of the ASO River Basins, Ga., Fla., and Ala., July 2011

GULF OF MEXICO

River

Flint River

Lake 

 Seminole

Lake

Blackshear

Walter F 

George

Reservoir

Chattahoochee

Apalachicola River

Ochlockonee

Aucilla River

River

0 10 20 40 MILES Base modifed from U.S. Geological Survey 

1:100,000-scale digital data

0 20

30

10 30 40 KILOMETERS

GA

FL

AL

FL

EXPLANATION

Study area

Surface-water temperature—In degrees Celsius

Weather station and name

Spring

20 to 22

23 to 25

Colquitt

26 to 28

29 to 32

85° 84° 83°

32°

31°

30°

Tifton

Cordele

Colquitt

Tallahassee

Albany

3 SE

Bainbridge IN

Figure 14. Location of weather stations and surface-water sites with temperature measurements in the lower Apalachicola–

Chattahoochee–Flint River basin and in western and central parts of the Aucilla–Suwannee–Ochlockonee River basin, Georgia 

and Florida, July 2011.
Hydrologic Conditions and Stream-Water Quality during July 2011 25

GULF OF MEXICO

River

Flint River

Lake 

 Seminole

Lake

Blackshear

Walter F 

George

Reservoir

Chattahoochee

Apalachicola River

Ochlockonee

Aucilla River

River

Base modifed from U.S. Geological Survey 0 10 20 40 MILES

1:100,000-scale digital data

0 20

30

10 30 40 KILOMETERS

85° 84° 83°

32°

31°

30°

GA

FL

AL

FL

EXPLANATION

Study area

Dissolved oxygen, in milligrams per liter

Weather station and name Colquitt

0.47 to 1

>1 to 4

>4 to 5

>5 to 10

Tifton

Cordele

Colquitt

Tallahassee

Albany

3 SE

Bainbridge IN

Spring

Figure 15. Location of surface-water sites with dissolved oxygen measurements in the lower Apalachicola–Chattahoochee–Flint 

River basin and in western and central parts of the Aucilla–Suwannee–Ochlockonee River basin, Georgia and Florida, July 2011.
26 Hydrologic Conditions in the Lower ACF and Parts of the ASO River Basins, Ga., Fla., and Ala., July 2011

GULF OF MEXICO

River

Flint River

Lake 

 Seminole

Lake

Blackshear

Walter F 

George

Reservoir

Chattahoochee

Apalachicola River

Ochlockonee

Aucilla River

River

Base modifed from U.S. Geological Survey 0 10 20 40 MILES

1:100,000-scale digital data

0 20

30

10 30 40 KILOMETERS

GA

FL

AL

FL

EXPLANATION

Study area

Specific conductance—In microsiemens 

 per centimeter at 25 degrees Celsius

Weather station and name Colquitt

13 to 70

71 to 300

301 to 499

500 to 834

Spring

85° 84° 83°

32°

31°

30°

Tifton

Cordele

Colquitt

Tallahassee

Albany

3 SE

Bainbridge IN

Figure 16. Location of surface-water sites with specific conductance measurements in the lower Apalachicola–Chattahoochee–

Flint River basin and in western and central parts of the Aucilla–Suwannee–Ochlockonee River basin, Georgia and Florida, July 2011.
Hydrologic Conditions and Stream-Water Quality during July 2011 27

GULF OF MEXICO

River

Flint River

Lake 

 Seminole

Lake

Blackshear

Walter F 

George

Reservoir

Chattahoochee

Apalachicola River

Ochlockonee

Aucilla River

River

Chipola River

Base modifed from U.S. Geological Survey 0 10 20 40 MILES

1:100,000-scale digital data

0 20

30

10 30 40 KILOMETERS

GA

FL

AL

FL

EXPLANATION

Study area

pH—In standard units

Weather station and name Colquitt

3.6 to 4

>4 to 5

>5 to 6

>6 to 8

Spring

85° 84° 83°

32°

31°

30°

Tifton

Cordele

Colquitt

Tallahassee

Albany

3 SE

Bainbridge IN

Figure 17. Location of surface-water sites with pH measurements in the lower Apalachicola–Chattahoochee–Flint River basin 

and in western and central parts of the Aucilla–Suwannee–Ochlockonee River basin, Georgia and Florida, July 2011.
28 Hydrologic Conditions in the Lower ACF and Parts of the ASO River Basins, Ga., Fla., and Ala., July 2011

Summary

During most of 2011, southwestern Georgia, southeastern 

Alabama, and north-central Florida experienced severe 

drought conditions. Graphs of cumulative departure from 

normal precipitation during 2008–2011 show a long-term 

precipitation deficit ranging from 17 to 27 inches. Groundwater levels were below normal throughout most of 2011, and 

record-low water levels were recorded at 128 Upper Floridan 

aquifer wells in Georgia during July. Flow was below normal 

in many of the streams measured during July 2011. 

A potentiometric-surface map of the Upper Floridan 

aquifer was constructed using water-level measurements 

collected in 312 wells in Alabama, Florida, and Georgia during 

July 18–22, 2011. The potentiometric surface indicates that 

groundwater in the study area generally flows to the south and 

toward streams except where stream reaches discharge to the 

Upper Floridan aquifer. One of the most prominent features of 

the potentiometric surface is the Gulf Trough, an area where 

the hydraulic gradient abruptly steepens. The degree of direct 

connection between the Upper Floridan aquifer and the streams 

decreases east of the Flint River where the overburden is thicker 

than it is west of the Flint River. The decreased connection is 

evident from stream-stage altitudes measured in July 2011 east 

of the Flint River, which differed from water-level altitudes in 

the Upper Floridan aquifer by as much as 160 feet.

Streamflow was used to estimate stream seepage in 

July 2011. Although some rain fell during the 7 days prior 

to the measurement period, measurements were collected 

after the peak discharge subsided. The measurements suggest 

that of the 2,122 stream miles, 286 miles depicted losing 

streams, 1,230 miles identified gaining streams, and 606 miles 

contained no flow. Many of the stream reaches in the Alapaha 

River subbasin were dry when measured in July 2011, as they 

had been in November 2008. 

Water-quality field properties including pH, dissolved 

oxygen, specific conductance, and temperature, were 

measured at 123 stream and 5 spring sites. Temperature 

ranged from 20.6 to 31.6 degrees Celsius (°C). The five 

samples with the lowest temperatures, between 20 and 22 °C, 

were collected from springs and suggest groundwater 

discharge. Dissolved oxygen concentrations ranged from 

0.47 to 9.98 milligrams per liter (mg/L). Ten samples had 

dissolved oxygen levels below 4 mg/L, suggesting a stressful 

environment for organisms. Specific conductance ranged from 

13 to 834 microsiemens per centimeter (μS/cm) at 25 °C. 

Twenty-seven samples had specific conductance values below 

70 μS/cm, suggesting recent recharge or rainwater. Values of 

pH ranged from 3.6 to 8.03. Three samples located on tributaries of the Chipola River in Calhoun County, Florida, had pH 

levels below 5.0, suggesting recent recharge of rainwater that 

might affect the reproduction of fish.
Selected References 29

Selected References

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U.S. Geological Survey Open-File Report 00–380, 2 p.

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of Georgia: Georgia Geological Survey SM-4, scale 

1:2,000,000. (Reprinted 1988.)

Davis, J.H., 1996, Hydrogeologic investigation and simulation 

of ground-water flow in the Upper Floridan aquifer of 

north-central Florida and southwestern Georgia and delineation of contributing areas for selected City of Tallahassee, 

Florida, water-supply wells: U.S. Geological Survey WaterResources Investigations Report 95–4296, 55 p.

Davis, J.H., and Katz, B.G., 2007, Hydrogeologic 

investigation, water chemistry analysis, and model delineation of contributing areas for City of Tallahassee publicsupply wells, Tallahassee, Florida: U.S. Geological Survey 

Scientific Investigations Report 2007–5070, 67 p. 

Drought Mitigation Center, 2009, Drought monitor archives: 

Accessed July 5, 2012, at http://droughtmonitor.unl.edu/

archive.html.

Frick, E.A., Buell, G.R., and Hopkins, E.E., 1996, Nutrient sources and analysis of nutrient water-quality data, 

Apalachicola–Chattahoochee–Flint River Basin, Georgia, 

Alabama, and Florida, 1972–90: U.S. Geological Survey 

Water-Resources Investigations Report 96–4101, 120 p.

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2009, Drought table, 2008: Accessed February 10, 2009, 

at http://www.griffin.uga.edu/aemn/d2008/prec.php.

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normal (1981–2010): Data prepared by the National 

Climatic Data Center, accessed December 21, 2011, 

at http://ggweather.com/normals/GA.html.

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U.S. climate normals: Data prepared by the National 

Climatic Data Center, accessed December 28, 2011, 

at http://ggweather.com/normals/index.htm.

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climate normal (1982–2010): Data prepared by the 

National Data Center, accessed December 21, 2011, 

at http://ggweather.com/normals/monthly.htm.

Gordon, D.W., and Peck, M.F., 2010, Stream base flow and 

potentiometric surface of the Upper Floridan aquifer in 

south-central and southwestern Georgia, November 2008: 

U.S. Geological Survey Scientific Investigations 

Report 2010–5095, 22 p.

Hicks, D.W., Gill, H.E., and Longsworth, S.A., 1987, 

Hydrogeology, chemical quality, and availability of ground 

water in the Upper Floridan aquifer, Albany area, Georgia: 

U.S. Geological Survey Water-Resources Investigations 

Report 87–4145, 52 p.

Jones, L.E., and Torak, L.J., 2004, Simulated effects of 

impoundment of Lake Seminole on ground-water flow in 

the Upper Floridan aquifer in southwestern Georgia and 

adjacent parts of Alabama and Florida: U.S. Geological 

Survey Scientific Investigations Report 2004–5077, 18 p., 

available at http://pubs.usgs.gov/sir/2004/5077/.

Jones, L.E., and, Torak, L.J., 2006, Simulated effects of 

seasonal ground-water pumpage for irrigation on hydrologic 

conditions in the lower Apalachicola–Chattahoochee–Flint 

River Basin, southwestern Georgia and parts of Alabama 

and Florida, 1999–2002: U.S. Geological Survey Scientific 

Investigations Report 2006–5234, 83 p., available at 

http://pubs.usgs.gov/sir/2006/5234/.

Kellam, M.F., and Gorday, L.L., 1990, Hydrogeology of the 

Gulf Trough–Apalachicola Embayment area, Georgia: 

Georgia Geologic Survey Bulletin 94, 74 p.

Kinnaman, S.L., and Dixon, J.F., 2011, Potentiometric surface 

of the Upper Floridan aquifer in Florida and parts of 

Georgia, South Carolina, and Alabama, May–June 2010: 

U.S. Geological Survey Scientific Investigations Map 3182, 

1 sheet.

Mahon, G.L., Sepulveda, A.A., and Choquette, A.F., 1997, 

Potentiometric surface of the upper Floridan aquifer in 

Florida, May and June 1995: Tallahassee, Florida 

Geological Survey Map Series MS-140, 1 sheet.

McGlynn, Sean, 2006, Leon County lakes ecology, 

Section 4.1: The Ochlockonee River; Tallahassee, Fla., 

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at http://mcglynnlabs.com/OchlockoneeRiver.pdf.

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aquifer system in Florida and parts of Georgia, Alabama, 

and South Carolina: U.S. Geological Survey Professional 

Paper 1403-B, 91 p.

Mosner, M.S., 2002, Stream-aquifer relations and the potentiometric surface of the Upper Floridan aquifer in the lower 

Apalachicola–Chattahoochee–Flint River basin in parts of 

Georgia, Florida, and Alabama, 1999–2000: U.S. Geological Survey Water-Resources Investigations Report 02–4244, 

45 p., available at http://pubs.usgs.gov/wri/wri02-4244/.

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Floridan aquifer in Georgia and adjacent parts of 

Alabama, Florida, and South Carolina, May–June 1990: 

U.S. Geological Survey Open-File Report 91–206, 3 p.
30 Hydrologic Conditions in the Lower ACF and Parts of the ASO River Basins, Ga., Fla., and Ala., July 2011

Peck, M.F., Clarke, J.S., Ransom, Camille, III, and 

Richards, C.J., 1999, Potentiometric surface of the Upper 

Floridan aquifer in Georgia and adjacent parts of Alabama, 

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Hydrologic Atlas 22, 1 sheet.

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Tallahassee, Florida Geological Survey Bulletin 62, 61 p.

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individual discharge measurements: U.S. Geological Survey 

Open-File Report 92–144, 21 p.

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of streamflow: Volume 1, Measurement of stage discharge: 

U.S. Geological Survey Water-Supply Paper 2175, 313 p.

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June 21, 2012, at http://www.gwri.gatech.edu/conferences/

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Physical and hydrochemical evidence of lake leakage 

near Jim Woodruff Lock and Dam and of ground-water 

inflow to Lake Seminole, and an assessment of karst 

features in and near the lake, southwestern Georgia and 

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resources of the lower Apalachicola–Chattahoochee–Flint 

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data for the middle and lower Chattahoochee and Flint 

River basins, 2004–2010: U.S. Geological Survey Scientific 

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of the Aucilla–Suwannee–Ochlockonee River basin, southcentral Georgia and adjacent parts of Florida: U.S. Geological Survey Scientific Investigations Report 2010–5072, 

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pubs/nhwc_report.pdf.

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Investigations, book 9, chap. A3, 65 p., available at 

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Upper Floridan aquifer in south-central Georgia—Insights 

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Open-File Report 77–56, 41 p.
Tables 1–5
32 Hydrologic Conditions in the Lower ACF and Parts of the ASO River Basins, Ga., Fla., and Ala., July 2011

Table 1. Period of record (1981–2010) monthly maximum, mean, and minimum values for temperature and precipitation at selected 

climatological stations in southwestern Georgia and northwestern Florida (Golden Gate Weather Services, 2011).—Continued

[—, not available]

Precipitation Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec. Annual

City: ALBANY 3 SE State: GA ID: USC00090140

Latitude: 31°32'02"N Longitude: 84°08'56"W

County: Dougherty Elevation: 180 feet

Temperature

Maximum 59.8 64.4 71.3 78.4 85.7 90.7 92.8 92.1 88 79.9 71 62.4 78.1

Mean 47.9 51.8 58.2 64.9 73.2 79.8 82.4 81.9 77.2 67.4 58 50.5 66.2

Minimum 36 39.2 45.1 51.4 60.8 68.9 72.1 71.8 66.4 54.9 45 38.6 54.3

Precipitation

Normal 5.11 4.42 5.28 3.38 3.26 4.96 5.93 5.2 3.65 2.65 3.61 3.97 51.42

2011 4.68 4.75 4.05 1.83 0.89 1.88 7.63 3.12 1.82 2.62 1.74 2.2 37.21

City: COLQUITT 2W State: GA ID: USC00092153

Latitude: 31°10'05"N Longitude: 84°45'59"W

County: Miller Elevation: 153 feet

Temperature

Maximum 62.3 66 73.1 78.9 86.1 90.9 92 91.4 87.6 80.4 71.3 64.1 78.7

Mean 50.9 53.8 60.4 65.5 73.8 79.8 81.4 81.1 76.5 68.1 59.5 52.8 67

Minimum 39.6 41.7 47.6 52 61.6 68.8 70.9 70.8 65.4 55.7 47.7 41.5 55.3

Precipitation

Normal — — — — — — — — — — — — —

2011 2.53 7.77 3.2 1.56 0.01 1.91 1.99 0.98 1.66 1.79 0.6 1.3 25.3

City: CORDELE State: GA ID: USC00092266

Latitude: 31°59'06"N Longitude: 83°46'29"W

County: Crisp Elevation: 308 feet

Temperature

Maximum 56.7 61 68.9 76.5 84.2 89.8 92 90.5 85.4 76.9 67.7 58.6 75.8

Mean 45.9 49.8 56.7 64 72.2 78.9 81.2 80.2 74.9 65.1 55.8 47.8 64.4

Minimum 35.2 38.6 44.4 51.5 60.2 67.9 70.5 69.8 64.4 53.3 43.9 37 53.1

Precipitation

Normal 4.65 4.02 4.86 3.37 2.8 4.48 4.14 3.9 4.25 2.14 3.33 3.95 45.89

2011 4.14 4.21 5.74 0.99 0.2 1.76 10.22 2.05 1.15 1.72 2.08 3.2 37.46
Table 1 33

Table 1. Period of record (1981–2010) monthly maximum, mean, and minimum values for temperature and precipitation at selected 

climatological stations in southwestern Georgia and northwestern Florida (Golden Gate Weather Services, 2011).—Continued

[—, not available]

Precipitation Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec. Annual

City: TIFTON State: GA ID: USC00098703

Latitude: 31°26'46"N Longitude: 83.28'36"W

County: Tift Elevation: 380 feet

Temperature

Maximum 59.3 63.5 70.3 76.9 84.4 89.3 91.4 90.4 86.5 78.7 70 61.5 76.9

Mean 48 51.8 58.2 64.5 72.7 78.5 80.8 80.2 75.8 66.7 57.9 50.4 65.5

Minimum 36.6 40 46.1 52.1 60.9 67.7 70.3 70 65.1 54.7 45.8 39.3 54.1

Precipitation

Normal 4.69 4.18 5.24 3.09 2.78 4.56 4.72 4.46 3.97 2.71 3.19 3.71 47.3

2011 3.43 3.69 3.4 1.22 0.56 4.31 4.88 2.98 5.81 4.1 1.67 1.95 38

City: TALLAHASSEE AP State: FL ID: USC00088756

Latitude: 30°23'46"N Longitude: 84°21'20"W

County: Leon Elevation: 55 feet

Temperature

Maximum 64.2 67.7 75.2 80.5 87.8 91.5 92.6 92.9 89.5 82.3 74.8 65.8 80.5

Mean 50.8 54.2 60.6 66.3 74.5 80.2 82 82.2 78.4 69 60.4 52.6 67.6

Minimum 37.4 40.7 46 52 61.2 68.9 71.3 71.4 67.3 55.7 45.9 39.3 54.8

Precipitation

Normal 4.88 4.59 5.43 3.18 2.93 7.17 6.71 8.34 4.5 3.05 3.41 3.87 58.06

2011 4.3 2.72 3.21 2.01 0.7 5.77 5.26 2.07 4.26 1.77 1.02 4.53 37.62

Temperature––Mean monthly for all sites

Minimum 45.9 49.8 56.7 64 72.2 78.5 80.8 80.2 74.9 65.1 55.8 47.8 64.4

Maximum 50.9 54.2 60.6 66.3 74.5 80.2 82.4 82.2 78.4 69 60.4 52.8 67.6

Average 48.7 52.3 58.8 65.0 73.3 79.4 81.6 81.1 76.6 67.3 58.3 50.8 66.1

Precipitation––Total monthly

Minimum 4.65 4.02 4.86 3.09 2.78 4.48 4.14 3.9 3.65 2.14 3.19 3.71 45.89

Maximum 5.11 4.59 5.43 3.38 3.26 7.17 6.71 8.34 4.5 3.05 3.61 3.97 58.06

Average 4.83 4.30 5.20 3.25 2.94 5.29 5.37 5.47 4.09 2.64 3.38 3.87 50.67
34 Hydrologic Conditions in the Lower ACF and Parts of the ASO River Basins, Ga., Fla., and Ala., July 2011

Table 2. Water levels in the surficial aquifer in Georgia and Florida, July 2011 and October 2006.

[Vertical datum is NAVD 88; ddmmss, degree, minute, second; N, north; W, west; ft, feet; —, no data]

State County Site number Station name

Latitude Longitude Altitude of 

land surface

(ft)

(ddmmss)

Florida Calhoun 302655085041103 302655085041103 30°26'56"N 85°04'10"W 82.4 

Florida Gadsden 303312084423501 303312084423501 30°33'14"N 84°42'34"W 264.4 

Florida Gadsden 303109084275402 303109084275402 30°31'08"N 84°27'50"W 200.67 

Florida Gadsden 303109084275404 303109084275404 30°31'07"N 84°27'49"W 198 

Florida Leon 301831084365604 301831084365604 30°18'32"N 84°36'56"W 109 

Florida Leon 303142084214602 303142084214602 30°31'43"N 84°21'46"W 121.6 

Georgia Baker 311714084275101 10J008 31°17'14"N 84°27'51"W 170 

Georgia Baker 312241084244401 10K007 31°22'40"N 84°24'44"W 180 

Georgia Dougherty 312950084131803 12K143 31°29'51"N 84°13'18"W 194.44 

Georgia Dougherty 313019084104602 12L371 31°30'20"N 84°10'46"W 190 

Georgia Dougherty 313038084122501 12L376 31°30'42"N 84°12'33"W 190.1 

Georgia Dougherty 313130084101002 12L049 31°31'31"N 84°10'10"W 179 

Georgia Dougherty 313130084101003 12L050 31°31'31"N 84°10'10"W 179 

Georgia Dougherty 313511084085207 12L287 31°35'12"N 84°08'52"W 191.46 

Georgia Dougherty 313511084085208 12L288 31°35'12"N 84°08'52"W 191.46 

Georgia Grady 304346084073501 12D034 30°43'47"N 84°07'35"W 234 

Georgia Miller 311009084495503 07H003 31°10'09"N 84°49'54"W 166.90 

Georgia Mitchell 311919084023902 13J010 31°19'22"N 84°03'12"W 270 

Georgia Sumter 320001084032801 13Q051 32°00'03"N 84°03'25"W 325 

Georgia Sumter 320011084121501 12Q056 32°00'12"N 84°12'12"W 352 

Georgia Sumter 320051084061401 13Q050 32°00'50"N 84°06'15"W 358 

Georgia Tift 312003083314401 17J022 31°20'04"N 83°31'44"W 267 

Georgia Tift 312021083350101 17J023 31°20'22"N 83°35'01"W 284 

Georgia Tift 312127083374701 16J033 31°21'27"N 83°37'47"W 325.1 

Georgia Tift 312505083382001 16K019 31°25'05"N 83°38'20"W 310.7 

Georgia Tift 312623083352401 17K066 31°26'23"N 83°35'24"W 329 

Georgia Tift 313116083342601 17L029 31°31'15"N 83°34'26"W 321.3 

Georgia Tift 313116083342601 17L029 31°31'15"N 83°34'26"W 321.3 

Georgia Tift 313122083325101 17L026 31°31'23"N 83°32'51"W 359 

Georgia Tift 313144083335501 17L028 31°31'44"N 83°33'55"W 322.3 

Georgia Turner 313435083390101 16L021 31°34'36"N 83°39'01"W 334 

Georgia Turner 313630083385001 16L022 31°36'31"N 83°38'50"W 341 

Georgia Turner 313822083311901 17M010 31°38'23"N 83°31'19"W 329 

Georgia Turner 313950083425401 16M015 31°39'51"N 83°42'54"W 416 

Georgia Turner 314115083351301 17M011 31°41'15"N 83°35'13"W 394.1 

Georgia Turner 314123083391301 16M016 31°41'24"N 83°39'13"W 403 

Georgia Turner 314847083360301 17N002 31°48'48"N 83°36'03"W 364 

Georgia Turner 315059083350901 17N003 31°51'00"N 83°35'09"W 429 

Georgia Worth 312025083401101 16J032 31°20'26"N 83°40'11"W 310 

Georgia Worth 312356083462001 15K012 31°23'57"N 83°46'20"W 316 

Georgia Worth 313521083501402 15L033 31°35'27"N 83°50'18"W 409 

Georgia Worth 315009083571001 14N008 31°50'12"N 83°57'13"W 239 

Georgia Worth 314330084005403 13M007 31°43'31"N 84°00'51"W 237.84 
Table 2. Water levels in the surficial aquifer in Georgia and Florida, July 2011 and October 2006.—Continued

[Vertical datum is NAVD 88; ddmmss, degree, minute, second; N, north; W, west; ft, feet; —, no data]

Station name

Date

measured

in 2011

Depth of 

water 

below land 

surface (ft)

Altitude

of water 

surface

(ft)

Date 

measured

in 2006

Depth to

water below 

land surface

(ft)

Altitude

of water 

surface

(ft)

Water-level

change from

2006 to 2011

(ft) 

302655085041103 7/2/2011 155.73 73.33 — — — —

303312084423501 7/2/2011 503.34 238.94 — — — —

303109084275402 7/2/2011 355.85 155.18 — — — —

303109084275404 7/2/2011 376.42 178.42 — — — —

301831084365604 7/19/2011 13.65 95.35 — — — —

303142084214602 7/19/2011 40.57 81.03 — — — —

10J008 7/19/2011 45.46 124.54 — — — —

10K007 7/19/2011 29.45 150.55 — — — —

12K143 7/20/2011 — — — — — —

12L371 7/19/2011 — — — — — —

12L376 7/19/2011 37.69 152.41 — — — —

12L049 7/19/2011 — — — — — —

12L050 7/19/2011 — — — — — —

12L287 7/19/2011 — — — — — —

12L288 7/19/2011 — — — — — —

12D034 7/21/2011 13.30 220.70 — — — —

07H003 7/19/2011 7.83 159.07 — — — —

13J010 7/20/2011 — — — — — —

13Q051 7/1/2011 39.15 285.85 10/16/2006 34.89 290.11 4.26

12Q056 7/1/2011 7.47 344.53 — — — —

13Q050 7/1/2011 28.19 329.81 — — — —

17J022 7/19/2011 7.31 259.69 10/3/2006 6.95 261.05 1.36

17J023 7/19/2011 6.74 277.26 10/3/2006 4.20 280.8 3.54

16J033 7/19/2011 31.84 293.26 10/3/2006 27.16 297.94 4.68

16K019 7/19/2011 10.69 300.01 10/3/2006 7.29 303.41 3.4

17K066 7/19/2011 16.64 312.36 10/4/2006 15.52 313.48 1.12

17L029 7/18/2011 157.90 163.40 10/5/2006 9.40 311.9 148.50

17L029 7/19/2011 10.45 310.85 10/5/2006 9.40 311.9 1.05

17L026 7/18/2011 3.17 355.83 10/5/2006 5.03 354.97 –0.86

17L028 7/18/2011 9.67 312.63 10/5/2006 9.22 313.08 0.45

16L021 7/18/2011 21.07 312.93 10/5/2006 20.92 314.08 1.15

16L022 7/18/2011 15.44 325.56 10/5/2006 18.78 323.22 –2.34

17M010 7/18/2011 24.64 304.36 10/4/2006 25.48 304.52 0.16

16M015 7/18/2011 8.50 407.50 10/4/2006 14.39 402.61 –4.89

17M011 7/18/2011 9.38 384.72 10/4/2006 8.12 385.98 1.26

16M016 7/18/2011 20.46 382.54 10/4/2006 21.72 382.28 –0.26

17N002 7/18/2011 15.68 348.32 10/4/2006 16.74 348.26 –0.06

17N003 7/18/2011 19.11 409.89 10/4/2006 17.48 412.52 2.63

16J032 7/19/2011 11.98 298.02 10/3/2006 10.62 300.38 2.36

15K012 7/20/2011 12.80 303.20 10/3/2006 13.51 303.49 0.29

15L033 7/1/2011 5.17 403.83 — — — —

14N008 7/1/2011 6.40 232.60 — — — —

13M007 7/19/2011 11.12 226.72 — — — —

Table 2 35
36 Hydrologic Conditions in the Lower ACF and Parts of the ASO River Basins, Ga., Fla., and Ala., July 2011

Table 3. Water levels in the Upper Floridan aquifer, July 2011 and November 2008.—Continued

[Vertical datum is NAVD 88; ddmmss, degree, minute, second; N, north; W, west; ft, feet; —, no data; –, measurement above land surface]

State County Site number Station name

Latitude Longitude Altitude of 

land surface

(ft)

(ddmmss)

Alabama Houston 310017085063401 310017085063401 31°00'17"N 85°06'34"W 107.77 

Alabama Houston 311505085140101 311505085140101 31°15'06"N 85°14'02"W 226.96 

Alabama Houston 310153085225901 310153085225901 31°01'53"N 85°22'59"W 132.86 

Alabama Houston 310208085194001 310208085194001 31°02'08"N 85°19'40"W 130.39 

Alabama Houston 310329085145401 310329085145401 31°03'29"N 85°14'54"W 124.03 

Alabama Houston 310539085232601 310539085232601 31°05'44"N 85°23'27"W 161.96 

Florida Calhoun 301403085112801 301403085112801 30°14'34"N 85°11'30"W 21 

Florida Calhoun 303415085074001 303415085074001 30°34'16"N 85°07'40"W 207.56 

Florida Franklin 295046084394301 295046084394301 29°50'47"N 84°39'43"W 4.48 

Florida Franklin 295507084311901 295507084311901 29°55'08"N 84°31'19"W 29.38 

Florida Franklin 295732084430701 295732084430701 29°57'33"N 84°43'07"W 9.42 

Florida Franklin 295918085005201 295918085005201 29°59'19"N 85°00'52"W 14.91 

Florida Franklin 295638084362301 295638084362301 29°56'37"N 84°36'23"W 18.35 

Florida Franklin 294337084532401 294337084532401 29°43'38"N 84°53'24"W 4.42 

Florida Camden 303550084345001 303550084345001 30°35'51"N 84°34'49"W 150.46 

Florida Gadsden 303845084250001 303845084250001 30°38'46"N 84°24'59"W 257.08 

Florida Gadsden 304056084502501 304056084502501 30°40'57"N 84°50'24"W 117.49 

Florida Gadsden 304154084453901 304154084453901 30°41'54"N 84°45'39"W 282 

Florida Gulf 300703085160401 300703085160401 30°07'04"N 85°16'04"W 40.45 

Florida Gulf 294936085175001 294936085175001 29°49'36"N 85°17'50"W 16.4 

Florida Gulf 294032085204501 294032085204501 29°40'33"N 85°20'45"W 9.52 

Florida Gulf 294102085134801 294102085134801 29°41'04"N 85°13'20"W 6.5 

Florida Jackson 303701085231301 303701085231301 30°37'02"N 85°23'12"W 304.6 

Florida Jackson 304230084535901 304230084535901 30°42'33"N 84°54'00"W 98.25 

Florida Jackson 304413085064401 304413085064401 30°44'14"N 85°06'43"W 166.31 

Florida Jackson 304918084565601 304918084565601 30°49'19"N 84°56'55"W 109.56 

Florida Jackson 305113085043601 305113085043601 30°51'15"N 85°04'37"W 127.21 

Florida Jackson 305713085305302 305713085305302 30°57'15"N 85°30'53"W 145.65 

Florida Jackson 305905085063401 305905085063401 30°59'04"N 85°06'34"W 147 

Florida Jackson 305351085013903 305351085013903 30°53'55"N 85°01'40"W 122.89 

Florida Jackson 305822085095701 305822085095701 30°58'26"N 85°10'01"W 146 

Florida Leon 301844084173501 301844084173501 30°18'45"N 84°17'35"W 25 

Florida Leon 301844084173502 301844084173502 30°18'41"N 84°17'37"W 24.55 

Florida Leon 302037084082701 302037084082701 30°20'39"N 84°08'27"W 28.56 

Florida Leon 302039084082601 302039084082601 30°20'40"N 84°08'26"W 28.35 

Florida Leon 302404084200701 302404084200701 30°24'05"N 84°20'07"W 45.67 

Florida Leon 302410084200002 302410084200002 30°24'11"N 84°21'00"W 36.86 

Florida Leon 302710084163001 302710084163001 30°27'11"N 84°16'30"W 185.84 
Table 3. Water levels in the Upper Floridan aquifer, July 2011 and November 2008.—Continued

[Vertical datum is NAVD 88; ddmmss, degree, minute, second; N, north; W, west; ft, feet; —, no data; –, measurement above land surface]

Station name

Date

measured

in 2011

Depth to water

below land 

surface (ft)

Altitude

of water 

surface

(ft)

Date

measured

in 2008

Depth to

water below 

land surface

(ft)

Altitude

of water 

surface 

(ft)

Water-level

change from

2008 to 2011

(ft) 

310017085063401 7/19/2011 40.84 107.77 — — — —

311505085140101 7/18/2011 14.7 226.96 — — — —

310153085225901 7/18/2011 26.79 132.86 — — — —

310208085194001 7/18/2011 19.25 130.39 — — — —

310329085145401 7/18/2011 35.6 124.03 — — — —

310539085232601 7/18/2011 37.69 161.96 — — — —

301403085112801 7/20/2011 — 25.357 — — — —

303415085074001 7/20/2011 — 49.273 — — — —

295046084394301 7/20/2011 0.73 3.75 — — — —

295507084311901 7/20/2011 23.25 6.13 — — — —

295732084430701 7/20/2011 –3.23 12.65 — — — —

295918085005201 7/22/2011 –2.9 17.81 — — — —

295638084362301 7/20/2011 8.63 9.72 — — — —

294337084532401 7/20/2011 –5.58 10 — — — —

303550084345001 7/21/2011 — 53.615 — — — —

303845084250001 7/22/2011 — 47.246 — — — —

304056084502501 7/21/2011 — 60.934 — — — —

304154084453901 7/21/2011 — 75.624 — — — —

300703085160401 7/21/2011 17.44 23.01 — — — —

294936085175001 7/21/2011 11.81 4.59 — — — —

294032085204501 7/21/2011 2.64 6.88 — — — —

294102085134801 7/21/2011 3.85 2.65 — — — —

303701085231301 7/19/2011 — 94.882 — — — —

304230084535901 7/19/2011 — 70.673 — — — —

304413085064401 7/19/2011 — 83.985 — — — —

304918084565601 7/19/2011 — 77.915 — — — —

305113085043601 7/19/2011 — 79.918 — — — —

305713085305302 7/19/2011 — 127.117 — — — —

305905085063401 7/19/2011 — 102.411 — — — —

305351085013903 7/19/2011 — 86.459 — — — —

305822085095701 7/19/2011 — 106.319 — — — —

301844084173501 7/19/2011 19.05 5.95 — — — —

301844084173502 7/19/2011 17.78 6.77 — — — —

302037084082701 7/19/2011 9.57 18.99 — — — —

302039084082601 7/19/2011 9.14 19.21 — — — —

302404084200701 7/19/2011 21.37 24.3 — — — —

302410084200002 7/19/2011 10.59 26.27 — — — —

302710084163001 7/22/2011 167.24 18.6 — — — —

Table 3 37
38 Hydrologic Conditions in the Lower ACF and Parts of the ASO River Basins, Ga., Fla., and Ala., July 2011

Table 3. Water levels in the Upper Floridan aquifer, July 2011 and November 2008.—Continued

[Vertical datum is NAVD 88; ddmmss, degree, minute, second; N, north; W, west; ft, feet; —, no data; –, measurement above land surface]

State County Site number Station name

Latitude Longitude Altitude of 

land surface

(ft)

(ddmmss)

Florida Leon 303001084134701 303001084134701 30°30'02"N 84°13'47"W 191.23 

Florida Leon 302613084130001 302613084130001 30°26'23"N 84°13'07"W 132.5 

Florida Liberty 300813084555701 300813084555701 30°08'14"N 84°55'56"W 51.46 

Florida Liberty 301035084403701 301035084403701 30°10'36"N 84°40'36"W 21.69 

Florida Wakulla 300540084174001 300540084174001 30°05'41"N 84°17'40"W 8.33 

Florida Wakulla 300655084223701 300655084223701 30°06'56"N 84°22'36"W 31.48 

Florida Wakulla 301115084241201 301115084241201 30°11'16"N 84°24'12"W 34.35 

Florida Wakulla 301156084103501 301156084103501 30°11'57"N 84°10'35"W 6.3 

Florida Wakulla 301104084255401 301104084255401 30°11'00"N 84°25'47"W 44.22 

Florida Wakulla 301337084204001 301337084204001 30°13'36"N 84°20'39"W 17.67 

Florida Wakulla 301008084123801 301008084123801 30°10'09"N 84°12'38"W 10 

Florida Wakulla 300740084293001 300740084293001 30°07'41"N 84°29'30"W 46.77 

Georgia Ben Hill 314523083174801 19N003 31°45'24"N 83°17'48"W 360 

Georgia Ben Hill 314745083261401 18N003 31°47'49"N 83°26'06"W 373 

Georgia Ben Hill 314924083162001 19N007 31°49'24"N 83°16'20"W 251.35 

Georgia Berrien 311622083192401 19J011 31°16'22"N 83°19'24"W 253 

Georgia Berrien 312147083162101 19J013 31°21'47"N 83°16'21"W 285 

Georgia Berrien 312810083104701 20K020 31°28'10"N 83°10'47"W 312 

Georgia Calhoun 312853084275101 10K005 31°28'54"N 84°27'51"W 190 

Georgia Calhoun 313532084283501 10L004 31°35'33"N 84°28'35"W 233.59 

Georgia Calhoun 312919084313701 09K012 31°29'19"N 84°31'37"W 213 

Georgia Calhoun 313246084303201 09L029 31°32'46"N 84°30'32"W 236 

Georgia Coffee 312612082423901 24K001 31°26'12"N 82°42'39"W 185 

Georgia Coffee 313019082505201 23L007 31°30'20"N 82°50'52"W 250.36 

Georgia Coffee 313211082511801 23L004 31°32'17"N 82°51'20"W 244.21 

Georgia Coffee 313325082462801 23L021 31°33'25"N 82°46'28"W 236 

Georgia Coffee 313632082412201 24L004 31°36'330"N 82°41'21"W 236.17 

Georgia Coffee 313903082590501 22M003 31°38'56"N 82°59'00"W 286.25 

Georgia Coffee 314200082550001 22M010 31°42'00"N 82°55'00"W 306 

Georgia Colquitt 310211083405301 16G001 31°03'11"N 83°41'06"W 267.37 

Georgia Colquitt 310443083491701 15G010 31°04'44"N 83°49'17"W 280.48 

Georgia Colquitt 310720083505801 15G022 31°07'17"N 83°50'58"W 248.49 

Georgia Colquitt 311006083402001 16H028 31°10'12"N 83°40'12"W 267.42 

Georgia Colquitt 311220083330201 17H027 31°12'23"N 83°33'03"W 262.39 

Georgia Colquitt 311400083544001 14H007 31°14'01"N 83°54'40"W 336.49 
Table 3. Water levels in the Upper Floridan aquifer, July 2011 and November 2008.—Continued

[Vertical datum is NAVD 88; ddmmss, degree, minute, second; N, north; W, west; ft, feet; —, no data; –, measurement above land surface]

Station name

Date

measured

in 2011

Depth to water

below land 

surface (ft)

Altitude

of water 

surface

(ft)

Date

measured

in 2008

Depth to

water below 

land surface

(ft)

Altitude

of water 

surface 

(ft)

Water-level

change from

2008 to 2011

(ft) 

303001084134701 7/22/2011 162.36 28.87 — — — —

302613084130001 7/19/2011 112.53 19.97 — — — —

300813084555701 7/20/2011 — 52.976 — — — —

301035084403701 7/20/2011 — 29.788 — — — —

300540084174001 7/18/2011 3.8 4.53 — — — —

300655084223701 7/18/2011 25.32 6.16 — — — —

301115084241201 7/18/2011 8.29 26.06 — — — —

301156084103501 7/18/2011 2.58 3.72 — — — —

301104084255401 7/18/2011 15.69 28.53 — — — —

301337084204001 7/18/2011 11.1 6.57 — — — —

301008084123801 7/18/2011 6.64 3.36 — — — —

300740084293001 7/19/2011 — 29.795 — — — —

19N003 7/19/2011 162.10 197.9 11/7/2008 165.80 194.56 –3.34

18N003 7/19/2011 178.91 194.09 11/6/2008 175.60 197.78 3.69

19N007 7/19/2011 94.08 157.27 11/7/2008 92.20 159.15 1.88

19J011 7/18/2011 197.08 55.92 — — — —

19J013 7/18/2011 239.14 45.86 — — — —

20K020 7/18/2011 194.09 117.91 — — — —

10K005 7/18/2011 30.95 159.05 11/3/2008 21.96 168.04 8.99

10L004 7/18/2011 22.23 211.36 11/3/2008 13.35 220.24 8.88

09K012 7/18/2011 35.41 177.59 — — — —

09L029 7/18/2011 37.70 198.3 — — — —

24K001 7/19/2011 144.92 40.08 — — — —

23L007 7/19/2011 209.06 41.3 — — — —

23L004 7/19/2011 203.42 40.79 — — — —

23L021 7/19/2011 208.16 27.84 — — — —

24L004 7/19/2011 191.32 44.85 — — — —

22M003 7/19/2011 182.09 104.16 — — — —

22M010 7/19/2011 220.56 85.44 — — — —

16G001 7/19/2011 203.28 64.09 11/5/2008 198.23 69.14 5.05

15G010 7/19/2011 217.45 63.03 11/4/2008 213.01 67.47 4.44

15G022 7/19/2011 182.71 65.78 11/4/2008 177.37 71.12 5.34

16H028 7/19/2011 202.61 64.81 11/5/2008 203.51 63.91 –0.90

17H027 7/19/2011 206.77 55.62 11/5/2008 207.10 55.29 –0.33

14H007 7/19/2011 193.72 142.77 11/4/2008 191.83 144.66 1.89

Table 3 39
40 Hydrologic Conditions in the Lower ACF and Parts of the ASO River Basins, Ga., Fla., and Ala., July 2011

Table 3. Water levels in the Upper Floridan aquifer, July 2011 and November 2008.—Continued

[Vertical datum is NAVD 88; ddmmss, degree, minute, second; N, north; W, west; ft, feet; —, no data; –, measurement above land surface]

State County Site number Station name

Latitude Longitude Altitude of 

land surface

(ft)

(ddmmss)

Georgia Colquitt 311427083464201 15H022 31°14'28"N 83°46'33"W 347.45 

Georgia Colquitt 311452083400701 16H037 31°14'57"N 83°40'10"W 327.44 

Georgia Colquitt 311643083490001 15J013 31°16'44"N 83°49'01"W 369 

Georgia Colquitt 311730083412501 16J019 31°17'34"N 83°41'28"W 312.44 

Georgia Colquitt 311845083313901 17J009 31°18'437"N 83°31'28"W 257.38 

Georgia Colquitt 311930083390901 16J009 31°19'33"N 83°39'29"W 316.44 

Georgia Colquitt 310509083495401 15G023 31°05'10"N 83°49'54"W 264.49 

Georgia Colquitt 310517083483301 15G016 31°05'18"N 83°48'33"W 282.48 

Georgia Colquitt 310525083490201 15G021 31°05'25"N 83°49'02"W 272.48 

Georgia Colquitt 310535083490001 15G004 31°05'29"N 83°48'56"W 278.48 

Georgia Colquitt 310612083481101 15G020 31°06'17"N 83°48'38"W 258.48 

Georgia Colquitt 310617083474701 15G017 31°06'18"N 83°47'47"W 289.47 

Georgia Cook 310813083260301 18H016 31°08'14"N 83°26'03"W 240.78 

Georgia Cook 310221083212201 19G011 31°02'22"N 83°21'22"W 240.36 

Georgia Cook 310714083324001 17G017 31°07'15"N 83°32'40"W 217.37 

Georgia Cook 310931083314401 17H007 31°09'32"N 83°31'44"W 247.81 

Georgia Cook 311255083275801 18H042 31°12'56"N 83°27'58"W 259.37 

Georgia Cook 311531083303901 17J027 31°15'31"N 83°30'39"W 220.01 

Georgia Crisp 315703083493601 15P018 31°57'053"N 83°49'36"W 291.46 

Georgia Crisp 320139083511602 15Q016 32°01'48"N 83°51'08"W 329 

Georgia Crisp 315610083392301 16P022 31°56'10"N 83°39'23"W 425 

Georgia Decatur 304247084402001 08D006 30°42'48"N 84°40'20"W 290 

Georgia Decatur 304353084424201 08D005 30°43'54"N 84°42'42"W 276 

Georgia Decatur 304408084444701 08D003 30°44'09"N 84°44'47"W 250 

Georgia Decatur 304415084434801 08D002 30°44'16"N 84°43'48"W 285 

Georgia Decatur 304450084442701 08D001 30°44'51"N 84°44'27"W 252 

Georgia Decatur 304454084402401 08D090 30°44'55"N 84°40'24"W 293 

Georgia Decatur 304456084400201 08D007 30°44'57"N 84°40'02"W 300 

Georgia Decatur 304457084290101 10D015 30°44'58"N 84°29'01"W 314.57 

Georgia Decatur 304508084470601 07E003 30°45'09"N 84°47'06"W 189.84 

Georgia Decatur 304532084450801 07E009 30°45'33"N 84°45'08"W 158 

Georgia Decatur 304536084434101 08E024 30°45'37"N 84°43'40"W 165 

Georgia Decatur 304539084460301 07E001 30°45'40"N 84°46'03"W 170 

Georgia Decatur 304550084454501 07E008 30°45'51"N 84°45'45"W 130 

Georgia Decatur 304603084364701 09E521 30°46'04"N 84°36'47"W 280 
Table 3. Water levels in the Upper Floridan aquifer, July 2011 and November 2008.—Continued

[Vertical datum is NAVD 88; ddmmss, degree, minute, second; N, north; W, west; ft, feet; —, no data; –, measurement above land surface]

Station name

Date

measured

in 2011

Depth to water

below land 

surface (ft)

Altitude

of water 

surface

(ft)

Date

measured

in 2008

Depth to

water below 

land surface

(ft)

Altitude

of water 

surface 

(ft)

Water-level

change from

2008 to 2011

(ft) 

15H022 7/19/2011 257.44 90.01 11/4/2008 258.03 89.42 –0.59

16H037 7/19/2011 270.47 56.97 11/5/2008 271.54 55.9 –1.07

15J013 7/19/2011 209.51 159.49 11/4/2008 208.41 161.05 1.56

16J019 7/19/2011 206.61 105.83 11/6/2008 205.41 107.03 1.20

17J009 7/18/2011 186.42 70.96 11/6/2008 185.07 72.31 1.35

16J009 7/19/2011 202.11 114.33 11/6/2008 203.00 113.44 –0.89

15G023 7/20/2011 191.72 72.77 — — — —

15G016 7/20/2011 222.68 59.8 — — — —

15G021 7/20/2011 211.47 61.01 — — — —

15G004 7/20/2011 218.43 60.05 — — — —

15G020 7/20/2011 202.91 55.57 — — — —

15G017 7/20/2011 228.13 61.34 — — — —

18H016 7/18/2011 183.70 57.08 11/7/2008 181.67 58.69 1.61

19G011 7/18/2011 178.29 62.07 — — — —

17G017 7/18/2011 165.47 51.9 — — — —

17H007 7/18/2011 190.74 57.069 — — — —

18H042 7/18/2011 207.24 52.13 — — — —

17J027 7/18/2011 166.95 53.06 — — — —

15P018 7/19/2011 27.22 264.24 11/5/2008 25.36 266.1 1.86

15Q016 7/19/2011 76.93 252.07 11/5/2008 65.39 263.61 11.54

16P022 7/19/2011 181.11 243.89 — — — —

08D006 7/19/2011 212.19 77.81 11/4/2008 211.28 78.72 0.91

08D005 7/19/2011 200.79 75.21 11/4/2008 199.72 76.28 1.07

08D003 7/18/2011 182.87 67.13 11/4/2008 181.39 68.61 1.48

08D002 7/18/2011 195.69 89.31 11/8/2008 196.45 88.55 –0.76

08D001 7/18/2011 179.48 72.52 11/5/2008 179.30 72.7 0.18

08D090 7/19/2011 218.38 74.62 11/4/2008 219.69 73.31 –1.31

08D007 7/19/2011 225.85 74.15 11/4/2008 224.34 75.66 1.51

10D015 7/19/2011 244.09 70.48 11/6/2008 242.39 72.18 1.70

07E003 7/18/2011 120.18 69.665 11/5/2008 119.61 69.39 –0.28

07E009 7/18/2011 84.44 73.56 11/5/2008 81.86 76.14 2.58

08E024 7/19/2011 75.28 89.72 11/5/2008 75.13 89.87 0.15

07E001 7/18/2011 100.43 69.57 11/5/2008 99.27 70.73 1.16

07E008 7/18/2011 32.19 97.81 11/5/2008 31.52 98.48 0.67

09E521 7/19/2011 184.36 95.64 11/3/2008 181.67 98.33 2.69

Table 3 41
42 Hydrologic Conditions in the Lower ACF and Parts of the ASO River Basins, Ga., Fla., and Ala., July 2011

Table 3. Water levels in the Upper Floridan aquifer, July 2011 and November 2008.—Continued

[Vertical datum is NAVD 88; ddmmss, degree, minute, second; N, north; W, west; ft, feet; —, no data; –, measurement above land surface]

State County Site number Station name

Latitude Longitude Altitude of 

land surface

(ft)

(ddmmss)

Georgia Decatur 304613084434301 08E019 30°46'14"N 84°43'43"W 90 

Georgia Decatur 304614084431401 08E022 30°46'14"N 84°43'13"W 85 

Georgia Decatur 304616084431101 08E021 30°46'16"N 84°43'12"W 85 

Georgia Decatur 304712084395801 08E038 30°47'12"N 84°39'58"W 99 

Georgia Decatur 304750084332201 09E009 30°47'51"N 84°33'21"W 300 

Georgia Decatur 304753084385101 08E031 30°47'54"N 84°38'51"W 192 

Georgia Decatur 304806084404101 08E039 30°48'07"N 84°40'41"W 91 

Georgia Decatur 304836084442201 08E035 30°48'37"N 84°44'22"W 90 

Georgia Decatur 304858084424701 08E034 30°48'59"N 84°42'47"W 107 

Georgia Decatur 305104084340201 09E007 30°51'05"N 84°34'02"W 137.88 

Georgia Decatur 305132084340301 09E006 30°51'32"N 84°34'03"W 110 

Georgia Decatur 305157084412901 08E037 30°51'58"N 84°41'29"W 125.1 

Georgia Decatur 305210084451901 07E044 30°52'11"N 84°45'19"W 89 

Georgia Decatur 305222084343001 09E005 30°52'23"N 84°34'29"W 120 

Georgia Decatur 305223084351301 09E004 30°52'24"N 84°35'13"W 115 

Georgia Decatur 305223084351701 09E003 30°52'23"N 84°35'17"W 115 

Georgia Decatur 305227084373501 08E032 30°50'28"N 84°37'35"W 95 

Georgia Decatur 305236084440701 08F018 30°52'37"N 84°44'07"W 118 

Georgia Decatur 305258084380501 08F499 30°52'59"N 84°38'05"W 100 

Georgia Decatur 305326084383901 08F009 30°53'27"N 84°38'38"W 117.57 

Georgia Decatur 305523084391401 08F012 30°55'21"N 84°39'15"W 114.59 

Georgia Decatur 305651084362401 09F005 30°56'52"N 84°36'24"W 129.59 

Georgia Decatur 305736084355801 09F520 30°57'43"N 84°35'46"W 127.6 

Georgia Decatur 305752084302201 09F004 30°57'54"N 84°30'22"W 118.6 

Georgia Decatur 305950084285401 10F001 30°59'51"N 84°28'54"W 139.6 

Georgia Decatur 310136084411701 08G005 31°01'37"N 84°41'17"W 129.63 

Georgia Decatur 310250084342001 09G010 31°02'51"N 84°34'21"W 144.64 

Georgia Decatur 310428084310501 09G001 31°04'29"N 84°31'05"W 144.64 

Georgia Decatur 304356084475901 07D005 30°43'56"N 84°47'59"W 154 

Georgia Decatur 304533084383201 07E062 30°45'34"N 84°48'31"W 134 

Georgia Decatur 305355084405101 08F017 30°53'56"N 84°40'51"W 118.57 

Georgia Decatur 305706084404401 08F513 30°57'06"N 84°40'43"W 132 

Georgia Decatur 305822084263601 10F004 30°58'23"N 84°26'36"W 144.6 

Georgia Decatur 305926084425901 08F514 30°59'26"N 84°43'00"W 119 

Georgia Decatur 310033084441701 08G015 31°00'33"N 84°44'17"W 118 
Table 3. Water levels in the Upper Floridan aquifer, July 2011 and November 2008.—Continued

[Vertical datum is NAVD 88; ddmmss, degree, minute, second; N, north; W, west; ft, feet; —, no data; –, measurement above land surface]

Station name

Date

measured

in 2011

Depth to water

below land 

surface (ft)

Altitude

of water 

surface

(ft)

Date

measured

in 2008

Depth to

water below 

land surface

(ft)

Altitude

of water 

surface 

(ft)

Water-level

change from

2008 to 2011

(ft) 

08E019 7/19/2011 7.68 82.32 11/5/2008 6.10 83.9 1.58

08E022 7/19/2011 17.47 67.53 11/5/2008 17.23 67.77 0.24

08E021 7/19/2011 15.40 69.6 11/4/2008 14.79 70.21 0.61

08E038 7/19/2011 22.71 76.29 11/4/2008 22.24 76.76 0.47

09E009 7/18/2011 222.34 77.66 11/3/2008 218.89 81.11 3.45

08E031 7/19/2011 107.75 84.25 11/8/2008 107.58 84.42 0.17

08E039 7/20/2011 14.73 76.27 11/7/2008 16.64 74.36 –1.91

08E035 7/20/2011 14.19 75.81 11/7/2008 14.82 75.18 –0.63

08E034 7/20/2011 31.17 75.83 11/7/2008 31.87 75.13 –0.70

09E007 7/19/2011 51.93 85.948 11/3/2008 48.37 89.63 3.68

09E006 7/19/2011 43.29 66.71 11/4/2008 42.04 67.96 1.25

08E037 7/20/2011 50.79 74.31 11/7/2008 49.07 76.03 1.72

07E044 7/20/2011 27.77 61.23 11/7/2008 26.75 62.25 1.02

09E005 7/19/2011 42.79 77.21 11/3/2008 41.13 78.87 1.66

09E004 7/19/2011 35.60 79.4 11/3/2008 34.06 80.94 1.54

09E003 7/19/2011 36.07 78.93 11/3/2008 33.65 81.35 2.42

08E032 7/19/2011 23.51 71.49 11/4/2008 21.80 73.2 1.71

08F018 7/20/2011 41.30 76.7 11/7/2008 39.74 78.26 1.56

08F499 7/20/2011 22.35 77.65 11/7/2008 20.74 79.26 1.61

08F009 7/20/2011 41.13 76.44 11/7/2008 39.89 77.68 1.24

08F012 7/20/2011 38.20 76.39 11/1/2008 34.92 79.67 3.28

09F005 7/21/2011 52.75 76.84 11/6/2008 49.63 79.96 3.12

09F520 7/21/2011 50.18 77.42 11/6/2008 46.07 81.53 4.11

09F004 7/21/2011 40.73 77.87 11/6/2008 32.17 86.43 8.56

10F001 7/21/2011 54.75 84.85 11/6/2008 43.97 95.63 10.78

08G005 7/21/2011 39.89 89.74 11/7/2008 34.15 95.48 5.74

09G010 7/21/2011 60.56 84.08 11/6/2008 53.70 90.94 6.86

09G001 7/21/2011 53.93 90.71 11/6/2008 51.90 92.74 2.03

07D005 7/18/2011 68.12 85.88 — — — —

07E062 7/18/2011 76.21 57.79 — — — —

08F017 7/21/2011 40.76 77.81 — — — —

08F513 7/20/2011 53.09 78.91 — — — —

10F004 7/21/2011 54.56 90.04 — — — —

08F514 7/22/2011 39.53 79.47 — — — —

08G015 7/22/2011 35.46 82.54 — — — —

Table 3 43
44 Hydrologic Conditions in the Lower ACF and Parts of the ASO River Basins, Ga., Fla., and Ala., July 2011

Table 3. Water levels in the Upper Floridan aquifer, July 2011 and November 2008.—Continued

[Vertical datum is NAVD 88; ddmmss, degree, minute, second; N, north; W, west; ft, feet; —, no data; –, measurement above land surface]

State County Site number Station name

Latitude Longitude Altitude of 

land surface

(ft)

(ddmmss)

Georgia Decatur 310117084231501 10G001 31°01'23"N 84°23'14"W 141 

Georgia Decatur 310251084384001 08G013 31°02'51"N 84°38'40"W 132 

Georgia Dooly 320704083424101 16Q023 32°07'04"N 83°42'41"W 406 

Georgia Dooly 320720083373001 16Q022 32°07'20"N 83°37'30"W 329 

Georgia Dougherty 312636084034601 13K017 31°26'37"N 84°03'46"W 241 

Georgia Dougherty 312650084092301 12K013 31°26'54"N 84°09'23"W 184.03 

Georgia Dougherty 312654084210104 11K033 31°26'55"N 84°21'01"W 183 

Georgia Dougherty 312704084071601 13K014 31°27'05"N 84°07'16"W 182.48 

Georgia Dougherty 312709084161701 11K015 31°26'57"N 84°16'03"W 183 

Georgia Dougherty 312714084114001 12K010 31°27'15"N 84°11'41"W 194.71 

Georgia Dougherty 312747084102901 12K110 31°27'55"N 84°10'29"W 183.8 

Georgia Dougherty 312848084094101 12K115 31°28'49"N 84°09'40"W 168.85 

Georgia Dougherty 312852084135001 12K173 31°28'53"N 84°13'49"W 189.77 

Georgia Dougherty 312913084192601 11K043 31°29'14"N 84°19'26"W 193 

Georgia Dougherty 312919084153801 11K003 31°29'14"N 84°15'30"W 194.34 

Georgia Dougherty 312947084092201 12K180 31°29'47"N 84°09'22"W 171.3 

Georgia Dougherty 312950084131801 12K141 31°29'51"N 84°13'17"W 194.48 

Georgia Dougherty 313000084100301 12L373 31°30'00"N 84°10'03"W 185.3 

Georgia Dougherty 313019084133101 12L352 31°30'21"N 84°13'29"W 192.99 

Georgia Dougherty 313026084121901 12L350 31°30'26"N 84°12'19"W 189.1 

Georgia Dougherty 313031084005901 13L048 31°30'32"N 84°00'59"W 244.48 

Georgia Dougherty 313040084125901 12L277 31°30'42"N 84°12'33"W 190.1 

Georgia Dougherty 313043084131401 12L353 31°30'42"N 84°13'59"W 193.29 

Georgia Dougherty 313048084120101 12L272 31°30'48"N 84°12'01"W 184.16 

Georgia Dougherty 313115084122701 12L351 31°31'16"N 84°12'25"W 191.08 

Georgia Dougherty 313130084101001 12L030 31°31'34"N 84°10'10"W 176.54 

Georgia Dougherty 313135084132201 12L344 31°31'35"N 84°13'22"W 191.01 

Georgia Dougherty 313300084184901 11L020 31°33'00"N 84°18'48"W 207 

Georgia Dougherty 313302084120301 12L028 31°33'02"N 84°11'59"W 181.42 

Georgia Dougherty 313340084220001 11L111 31°33'41"N 84°22'00"W 220 

Georgia Dougherty 313504084165701 11L092 31°35'04"N 84°16'56"W 219.8 

Georgia Dougherty 313614084203401 11L112 31°36'15"N 84°20'34"W 232 

Georgia Dougherty 313640084002101 13L047 31°36'41"N 84°00'21"W 256 

Georgia Dougherty 312950084131802 12K142 31°29'51"N 84°13'18"W 194 

Georgia Dougherty 313019084104601 12L370 31°30'19"N 84°10'46"W 187.56 
Table 3. Water levels in the Upper Floridan aquifer, July 2011 and November 2008.—Continued

[Vertical datum is NAVD 88; ddmmss, degree, minute, second; N, north; W, west; ft, feet; —, no data; –, measurement above land surface]

Station name

Date

measured

in 2011

Depth to water

below land 

surface (ft)

Altitude

of water 

surface

(ft)

Date

measured

in 2008

Depth to

water below 

land surface

(ft)

Altitude

of water 

surface 

(ft)

Water-level

change from

2008 to 2011

(ft) 

10G001 7/21/2011 33.88 107.12 — — — —

08G013 7/21/2011 43.88 88.12 — — — —

16Q023 7/21/2011 107.69 298.31 — — — —

16Q022 7/21/2011 34.69 294.31 — — — —

13K017 7/18/2011 93.89 147.11 11/6/2008 86.52 154.48 7.37

12K013 7/20/2011 35.89 148.14 11/0/2008 34.82 149.21 1.07

11K033 7/20/2011 19.73 163.27 11/5/2008 18.80 164.2 0.93

13K014 7/18/2011 35.98 146.5 11/6/2008 35.76 146.72 0.22

11K015 7/18/2011 28.65 154.35 11/4/2008 25.64 157.36 3.01

12K010 7/19/2011 53.45 141.26 11/0/2008 52.36 142.35 1.09

12K110 7/20/2011 43.90 139.9 11/0/2008 42.99 140.81 0.91

12K115 7/20/2011 27.83 141.02 11/0/2008 26.23 142.62 1.60

12K173 7/20/2011 35.61 154.16 11/4/2008 35.25 154.52 0.36

11K043 7/18/2011 37.27 155.73 11/5/2008 19.69 173.31 17.58

11K003 7/18/2011 37.72 156.62 11/5/2008 32.50 161.84 5.22

12K180 7/20/2011 28.64 142.66 11/4/2008 28.10 143.2 0.54

12K141 7/20/2011 41.54 152.94 11/4/2008 40.54 153.94 1.00

12L373 7/19/2011 42.38 142.92 11/4/2008 41.35 143.95 1.03

12L352 7/19/2011 39.69 153.3 11/3/2008 37.67 155.32 2.02

12L350 7/19/2011 38.42 150.68 11/3/2008 35.74 153.36 2.68

13L048 7/18/2011 77.79 166.69 11/6/2008 78.53 165.95 –0.74

12L277 7/19/2011 37.59 152.51 11/4/2008 36.80 153.3 0.79

12L353 7/19/2011 39.66 153.63 11/3/2008 35.37 157.92 4.29

12L272 7/19/2011 36.30 147.86 11/4/2008 28.11 156.05 8.19

12L351 7/19/2011 38.38 152.7 11/4/2008 37.16 153.92 1.22

12L030 7/19/2011 28.29 148.25 11/4/2008 29.16 147.38 –0.87

12L344 7/19/2011 35.17 155.84 11/6/2008 31.13 159.88 4.04

11L020 7/19/2011 25.00 182 11/5/2008 21.91 185.09 3.09

12L028 7/19/2011 27.50 153.92 11/3/2008 24.75 156.67 2.75

11L111 7/20/2011 30.30 189.7 11/5/2008 25.64 194.36 4.66

11L092 7/19/2011 31.47 188.33 11/5/2008 32.13 187.67 –0.66

11L112 7/20/2011 34.82 197.18 11/4/2008 37.85 194.15 –3.03

13L047 7/18/2011 58.32 197.68 11/7/2008 60.84 195.16 –2.52

12K142 7/20/2011 41.90 152.1 — — — —

12L370 7/19/2011 46.02 141.54 — — — —

Table 3 45
46 Hydrologic Conditions in the Lower ACF and Parts of the ASO River Basins, Ga., Fla., and Ala., July 2011

Table 3. Water levels in the Upper Floridan aquifer, July 2011 and November 2008.—Continued

[Vertical datum is NAVD 88; ddmmss, degree, minute, second; N, north; W, west; ft, feet; —, no data; –, measurement above land surface]

State County Site number Station name

Latitude Longitude Altitude of 

land surface

(ft)

(ddmmss)

Georgia Dougherty 313235084134801 12L309 31°32'36"N 84°13'48"W 183.48 

Georgia Dougherty 313241084135301 12L305 31°32'42"N 84°13'53"W 178.08 

Georgia Dougherty 313247084005001 13L180 31°32'48"N 84°00'50"W 229.61 

Georgia Early 310800084563601 06H013 31°08'01"N 84°56'36"W 184.64 

Georgia Early 311108084564301 06H009 31°11'09"N 84°56'43"W 201.68 

Georgia Early 311526085000801 05J007 31°15'27"N 85°00'08"W 207.71 

Georgia Early 311929084464301 07J012 31°19'30"N 84°46'42"W 186.74 

Georgia Early 311209085003301 05H008 31°12'10"N 85°00'33"W 198.68 

Georgia Early 311212085003401 05H021 31°12'12"N 85°00'34"W 195 

Georgia Early 311608084555101 06J010 31°16'08"N 84°55'51"W 220 

Georgia Early 311733084540101 06J009 31°17'33"N 84°54'01"W 209 

Georgia Early 312232084391701 08K001 31°22'39"N 84°39'17"W 230 

Georgia Grady 304159084205501 11D027 30°42'05"N 84°20'56"W 251.53 

Georgia Grady 305235084125101 12F036 30°52'36"N 84°12'52"W 204.08 

Georgia Grady 305436084061901 13F034 30°54'36"N 84°06'19"W 221.4 

Georgia Grady 310226084182801 11G021 31°02'27"N 84°18'28"W 164.58 

Georgia Grady 310431084202501 11G002 31°04'32"N 84°20'25"W 139.59 

Georgia Irwin 313132083175901 19L001 31°31'33"N 83°18'01"W 332.33 

Georgia Irwin 313148083175001 19L029 31°31'48"N 83°17'50"W 304.19 

Georgia Irwin 313333083103801 20L002 31°33'47"N 83°10'49"W 299 

Georgia Irwin 313339083220601 19L026 31°33'39"N 83°22'06"W 341.15 

Georgia Irwin 313405083143401 20L025 31°34'05"N 83°14'34"W 304.7 

Georgia Irwin 313536083144701 20L003 31°35'43"N 83°14'51"W 337 

Georgia Irwin 313719083195901 19L033 31°37'20"N 83°19'59"W 368.71 

Georgia Lee 313808084093601 12M017 31°38'09"N 84°09'36"W 224 

Georgia Lee 314134084013801 13M056 31°41'35"N 84°01'38"W 254 

Georgia Lee 314153084131101 12M027 31°41'54"N 84°13'11"W 243 

Georgia Lee 314210084151901 11M017 31°42'11"N 84°15'19"W 264 

Georgia Lee 314252084060102 13M027 31°42'53"N 84°06'01"W 246 

Georgia Lee 314345084061901 13M066 31°43'46"N 84°06'19"W 259 

Georgia Lee 314442084034501 13M086 31°44'43"N 84°03'45"W 279 

Georgia Lee 314809084071901 13N003 31°48'10"N 84°07'19"W 288.51 

Georgia Lee 315209084042501 13N007 31°52'10"N 84°04'24"W 312.51 

Georgia Lee 315228084100601 12N004 31°52'29"N 84°10'05"W 288.56 
Table 3. Water levels in the Upper Floridan aquifer, July 2011 and November 2008.—Continued

[Vertical datum is NAVD 88; ddmmss, degree, minute, second; N, north; W, west; ft, feet; —, no data; –, measurement above land surface]

Station name

Date

measured

in 2011

Depth to water

below land 

surface (ft)

Altitude

of water 

surface

(ft)

Date

measured

in 2008

Depth to

water below 

land surface

(ft)

Altitude

of water 

surface 

(ft)

Water-level

change from

2008 to 2011

(ft) 

12L309 7/19/2011 18.26 165.22 — — — —

12L305 7/19/2011 10.78 167.3 — — — —

13L180 7/22/2011 59.28 170.33 — — — —

06H013 7/19/2011 61.70 122.94 11/5/2008 49.04 135.6 12.66

06H009 7/19/2011 54.12 147.56 11/5/2008 45.69 155.99 8.43

05J007 7/19/2011 35.46 172.25 11/5/2008 31.65 176.06 3.81

07J012 7/18/2011 28.63 158.11 11/7/2008 21.48 165.26 7.15

05H008 7/19/2011 45.08 153.6 — — — —

05H021 7/19/2011 41.99 153.01 — — — —

06J010 7/19/2011 8.13 211.87 — — — —

06J009 7/19/2011 34.72 174.28 — — — —

08K001 7/18/2011 34.15 195.85 — — — —

11D027 7/21/2011 193.84 57.69 11/3/2008 191.51 60.02 2.33

12F036 7/21/2011 143.41 60.67 11/2/2008 142.78 61.31 0.64

13F034 7/21/2011 142.23 79.17 11/3/2008 140.23 81.17 2.00

11G021 7/21/2011 61.88 102.7 11/3/2008 58.21 106.37 3.67

11G002 7/21/2011 40.55 99.04 11/3/2008 32.71 106.88 7.84

19L001 7/20/2011 156.17 176.16 11/6/2008 146.80 185.53 9.37

19L029 7/20/2011 127.79 176.4 11/6/2008 113.04 191.15 14.75

20L002 7/20/2011 136.87 162.13 11/6/2008 119.90 174.41 12.28

19L026 7/20/2011 163.32 177.83 11/6/2008 150.50 190.65 12.82

20L025 7/20/2011 124.78 179.92 11/6/2008 108.98 195.72 15.80

20L003 7/20/2011 158.00 179 11/6/2008 141.59 183.74 4.74

19L033 7/20/2011 190.67 178.04 11/6/2008 176.80 191.91 13.87

12M017 7/21/2011 32.76 191.24 11/3/2008 31.00 193 1.76

13M056 7/20/2011 40.60 213.4 11/4/2008 28.70 225.3 11.90

12M027 7/21/2011 70.04 172.96 11/3/2008 40.51 202.49 29.53

11M017 7/21/2011 33.44 230.56 11/3/2008 26.89 237.11 6.55

13M027 7/20/2011 41.48 204.52 11/4/2008 35.34 210.66 6.14

13M066 7/20/2011 47.37 211.63 11/4/2008 25.57 233.43 21.80

13M086 7/20/2011 66.89 212.11 11/5/2008 50.03 228.97 16.86

13N003 7/20/2011 47.12 241.39 11/5/2008 47.56 240.95 –0.44

13N007 7/20/2011 61.37 251.14 11/5/2008 47.32 265.19 14.05

12N004 7/20/2011 32.49 256.07 11/5/2008 19.72 268.84 12.77

Table 3 47
48 Hydrologic Conditions in the Lower ACF and Parts of the ASO River Basins, Ga., Fla., and Ala., July 2011

Table 3. Water levels in the Upper Floridan aquifer, July 2011 and November 2008.—Continued

[Vertical datum is NAVD 88; ddmmss, degree, minute, second; N, north; W, west; ft, feet; —, no data; –, measurement above land surface]

State County Site number Station name

Latitude Longitude Altitude of 

land surface

(ft)

(ddmmss)

Georgia Miller 310512084353201 09G005 31°05'13"N 84°35'31"W 151.90 

Georgia Miller 310651084404501 08G001 31°06'52"N 84°40'44"W 151.68 

Georgia Miller 310816084501801 07H008 31°08'17"N 84°50'18"W 174.66 

Georgia Miller 310857084332701 09H012 31°08'58"N 84°33'27"W 149.67 

Georgia Miller 310952084404801 08H010 31°09'53"N 84°40'48"W 171.69 

Georgia Miller 311009084495502 07H002 31°10'09"N 84°49'54"W 167 

Georgia Miller 311113084454701 07H012 31°11'14"N 84°45'46"W 173.7 

Georgia Miller 311411084403401 08H009 31°14'12"N 84°40'33"W 192.72 

Georgia Miller 310514084512101 07G027 31°05'14"N 84°51'21"W 159 

Georgia Miller 311206084532201 06H022 31°12'06"N 84°53'22"W 201 

Georgia Miller 311430084460701 07H026 31°14'30"N 84°46'06"W 169 

Georgia Miller 311459084502501 07H025 31°14'59"N 84°50'24"W 189 

Georgia Mitchell 310804084254401 10H006 31°08'05"N 84°25'44"W 157.64 

Georgia Mitchell 310830084215501 11H003 31°08'31"N 84°21'55"W 148.62 

Georgia Mitchell 311743084023001 13J001 31°17'30"N 84°02'18"W 374.52 

Georgia Mitchell 311802084192302 11J012 31°18'03"N 84°19'23"W 165 

Georgia Mitchell 312127084065801 13J004 31°21'30"N 84°06'57"W 193.51 

Georgia Mitchell 312253084100001 12K001 31°22'31"N 84°09'38"W 169.51 

Georgia Mitchell 311328084130701 12H008 31°13'28"N 84°12'55"W 165 

Georgia Mitchell 312023084001001 13J014 31°20'23"N 84°00'10"W 264 

Georgia Seminole 304656084493501 07E045 30°46'57"N 84°49'35"W 90 

Georgia Seminole 304758084551301 06E023 30°47'59"N 84°55'13"W 80 

Georgia Seminole 304815084472601 07E046 30°48'16"N 84°47'26"W 90 

Georgia Seminole 305024084473501 07E007 30°50'25"N 84°47'35"W 104.55 

Georgia Seminole 305044084543801 06E019 30°50'45"N 84°54'38"W 119.57 

Georgia Seminole 305258084510201 07F006 30°52'59"N 84°51'11"W 99.57 

Georgia Seminole 305309084552601 06F007 30°53'10"N 84°55'26"W 161.57 

Georgia Seminole 305356084534601 06F001 30°53'50"N 84°53'55"W 110 

Georgia Seminole 305509084552301 06F005 30°55'10"N 84°55'23"W 155.58 

Georgia Seminole 305616084495801 07F002 30°56'17"N 84°49'58"W 117.59 

Georgia Seminole 305657084554801 06F084 30°56'58"N 84°55'483"W 148 

Georgia Seminole 305938084465301 07F004 30°59'39"N 84°46'53"W 112.6 

Georgia Seminole 310010084494801 07G007 31°00'11"N 84°49'48"W 155.61 

Georgia Seminole 310250084472701 07G005 31°02'51"N 84°47'27"W 129.62 
Table 3. Water levels in the Upper Floridan aquifer, July 2011 and November 2008.—Continued

[Vertical datum is NAVD 88; ddmmss, degree, minute, second; N, north; W, west; ft, feet; —, no data; –, measurement above land surface]

Station name

Date

measured

in 2011

Depth to water

below land 

surface (ft)

Altitude

of water 

surface

(ft)

Date

measured

in 2008

Depth to

water below 

land surface

(ft)

Altitude

of water 

surface 

(ft)

Water-level

change from

2008 to 2011

(ft) 

09G005 7/18/2011 54.93 96.965 11/4/2008 52.32 99.34 2.38

08G001 7/18/2011 46.08 105.6 11/4/2008 36.75 114.93 9.33

07H008 7/20/2011 52.22 122.44 11/6/2008 42.27 132.39 9.95

09H012 7/18/2011 59.70 89.97 11/4/2008 57.26 92.41 2.44

08H010 7/18/2011 58.77 112.92 11/4/2008 56.28 115.41 2.49

07H002 7/19/2011 16.66 150.34 11/5/2008 13.41 153.59 3.25

07H012 7/19/2011 33.14 140.56 11/6/2008 28.70 145 4.44

08H009 7/18/2011 50.40 142.32 11/4/2008 41.24 151.48 9.16

07G027 7/20/2011 40.05 118.95 — — — —

06H022 7/19/2011 53.73 147.27 — — — —

07H026 7/19/2011 33.00 136 — — — —

07H025 7/19/2011 39.48 149.52 — — — —

10H006 7/21/2011 66.83 90.81 11/6/2008 61.01 96.63 5.82

11H003 7/21/2011 49.42 99.2 11/6/2008 42.08 106.54 7.34

13J001 7/21/2011 223.93 150.59 11/5/2008 222.44 152.08 1.49

11J012 7/21/2011 49.79 115.21 11/6/2008 48.94 116.06 0.85

13J004 7/20/2011 56.86 136.65 11/5/2008 54.93 138.58 1.93

12K001 7/20/2011 37.30 132.21 11/5/2008 35.45 134.06 1.85

12H008 7/21/2011 44.26 120.74 — — — —

13J014 7/20/2011 96.20 167.8 — — — —

07E045 7/21/2011 13.51 76.49 11/3/2008 13.61 76.39 –0.10

06E023 7/21/2011 7.75 72.25 11/6/2008 7.94 72.06 –0.19

07E046 7/21/2011 15.84 74.16 11/3/2008 15.83 74.17 0.01

07E007 7/21/2011 32.83 71.72 11/3/2008 34.15 70.4 –1.32

06E019 7/21/2011 45.05 74.52 11/6/2008 46.46 73.11 –1.41

07F006 7/21/2011 26.70 72.87 11/3/2008 31.28 68.29 –4.58

06F007 7/21/2011 95.70 65.87 11/6/2008 95.92 65.65 –0.22

06F001 7/21/2011 36.38 73.62 11/6/2008 30.56 79.44 5.82

06F005 7/21/2011 74.31 81.27 11/6/2008 71.90 83.68 2.41

07F002 7/20/2011 52.22 65.37 11/7/2008 28.92 88.67 23.30

06F084 7/21/2011 60.13 87.87 11/6/2008 54.16 93.84 5.97

07F004 7/20/2011 33.18 79.42 11/3/2008 31.32 81.28 1.86

07G007 7/20/2011 58.05 97.56 11/3/2008 56.04 99.57 2.01

07G005 7/20/2011 40.17 89.45 11/3/2008 41.46 88.16 –1.29

Table 3 49
50 Hydrologic Conditions in the Lower ACF and Parts of the ASO River Basins, Ga., Fla., and Ala., July 2011

Table 3. Water levels in the Upper Floridan aquifer, July 2011 and November 2008.—Continued

[Vertical datum is NAVD 88; ddmmss, degree, minute, second; N, north; W, west; ft, feet; —, no data; –, measurement above land surface]

State County Site number Station name

Latitude Longitude Altitude of 

land surface

(ft)

(ddmmss)

Georgia Seminole 310330084582801 06G008 31°03'32"N 84°58'28"W 131.6 

Georgia Seminole 305816084454201 07F003 30°58'18"N 84°45'43"W 121.59 

Georgia Seminole 310017084503901 07G028 31°00'17"N 84°50'39"W 152 

Georgia Seminole 310249084504501 07G026 31°02'49"N 84°50'45"W 160 

Georgia Sumter 315714084175101 11P019 31°57'14"N 84°17'51"W 351 

Georgia Sumter 315908084013901 13P019 31°59'08"N 84°01'39"W 320 

Georgia Sumter 320430084033001 13Q102 32°04'30"N 84°03'30"W 363 

Georgia Terrell 313836084210401 11M025 31°38'37"N 84°21'04"W 260 

Georgia Terrell 314247084212901 11M041 31°42'47"N 84°21'29"W 287 

Georgia Terrell 314531084253501 10N024 31°45'31"N 84°25'35"W 320 

Georgia Thomas 305002083481901 15E002 30°50'03"N 83°48'23"W 237.43 

Georgia Thomas 305238083591301 14F010 30°52'51"N 83°59'03"W 217.49 

Georgia Thomas 305600083472901 15F003 30°56'01"N 83°47'29"W 262.45 

Georgia Thomas 305932083540001 14F006 30°59'33"N 83°54'04"W 249.5 

Georgia Thomas 305959083580401 14F013 30°59'40"N 83°58'13"W 264.5 

Georgia Thomas 310432084053001 13G006 31°04'17"N 84°05'31"W 345 

Georgia Thomas 304126083533901 14D004 30°41'26"N 83°53'39"W 99 

Georgia Thomas 304652083553601 14E048 30°46'52"N 83°55'36"W 215 

Georgia Thomas 305133083444101 16E016 30°51'33"N 83°44'41"W 216 

Georgia Thomas 305943084065001 13F035 30°59'43"N 84°06'50"W 290 

Georgia Tift 311949083282701 18J041 31°19'49"N 83°28'27"W 317.64 

Georgia Tift 312310083311202 17K112 31°23'10"N 83°31'12"W 304 

Georgia Tift 312712082593301 18K049 31°27'13"N 83°29'33"W 329.36 

Georgia Tift 312949083303201 17K052 31°29'50"N 83°30'37"W 387.37 

Georgia Tift 313004083371801 17L014 31°30'05"N 83°37'18"W 333 

Georgia Tift 313525083374801 16L037 31°35'25"N 83°37'48"W 348.77 

Georgia Tift 313836083243801 18M017 31°38'36"N 83°24'38"W 309 

Georgia Turner 313640083321201 17L009 31°36'45"N 83°32'13"W 334 

Georgia Turner 313700083410201 16L048 31°37'00"N 83°41'02"W 379 

Georgia Turner 313819083432801 16M027 31°38'19"N 83°43'28"W 403.82 

Georgia Turner 313947083454701 15M013 31°39'47"N 83°45'47"W 422.56 

Georgia Turner 314125083384201 16M047 31°41'25"N 83°38'42"W 393.78 

Georgia Turner 314254083342001 17M007 31°42'53"N 83°34'17"W 381 
Table 3. Water levels in the Upper Floridan aquifer, July 2011 and November 2008.—Continued

[Vertical datum is NAVD 88; ddmmss, degree, minute, second; N, north; W, west; ft, feet; —, no data; –, measurement above land surface]

Station name

Date

measured

in 2011

Depth to water

below land 

surface (ft)

Altitude

of water 

surface

(ft)

Date

measured

in 2008

Depth to

water below 

land surface

(ft)

Altitude

of water 

surface 

(ft)

Water-level

change from

2008 to 2011

(ft) 

06G008 7/21/2011 36.48 95.12 11/5/2008 38.38 93.22 –1.90

07F003 7/20/2011 50.45 71.14 — — — —

07G028 7/20/2011 67.50 84.5 — — — —

07G026 7/20/2011 68.98 91.02 — — — —

11P019 7/19/2011 25.99 325.01 — — — —

13P019 7/19/2011 34.19 285.81 — — — —

13Q102 7/19/2011 70.21 292.79 — — — —

11M025 7/21/2011 24.97 235.03 11/3/2008 22.82 237.18 2.15

11M041 7/21/2011 20.99 266.01 — — — —

10N024 7/21/2011 26.90 293.1 — — — —

15E002 7/20/2011 172.46 64.97 11/4/2008 171.35 66.08 1.11

14F010 7/20/2011 143.29 74.2 11/4/2008 142.80 74.69 0.49

15F003 7/20/2011 195.81 66.64 11/4/2008 200.01 62.44 –4.20

14F006 7/20/2011 185.72 63.78 11/4/2008 184.77 64.73 0.95

14F013 7/20/2011 182.07 82.43 11/4/2008 180.82 83.68 1.25

13G006 7/20/2011 232.11 112.89 11/5/2008 230.88 113.66 0.77

14D004 7/20/2011 42.75 56.25 — — — —

14E048 7/20/2011 160.27 54.73 — — — —

16E016 7/20/2011 168.99 47.01 — — — —

13F035 7/20/2011 207.47 82.53 — — — —

18J041 7/19/2011 255.53 62.11 11/7/2008 238.80 78.84 16.73

17K112 7/19/2011 149.83 154.17 — — — —

18K049 7/18/2011 145.48 183.88 11/7/2008 135.59 193.77 9.89

17K052 7/21/2011 197.06 190.31 11/7/2008 187.80 199.57 9.26

17L014 7/20/2011 145.18 187.82 11/5/2008 142.00 191.43 3.61

16L037 7/18/2011 161.85 186.92 11/5/2008 158.60 190.17 3.25

18M017 7/20/2011 128.10 180.9 11/6/2008 116.52 192.48 11.58

17L009 7/18/2011 148.46 185.54 11/6/2008 146.70 187.67 2.13

16L048 7/18/2011 187.99 191.01 11/3/2008 185.36 193.64 2.63

16M027 7/18/2011 204.99 198.83 11/3/2008 198.60 205.22 6.39

15M013 7/19/2011 192.49 230.07 11/3/2008 185.78 236.78 6.71

16M047 7/18/2011 202.73 191.05 11/3/2008 199.50 194.28 3.23

17M007 7/19/2011 184.82 196.18 11/6/2008 179.53 201.84 5.66

Table 3 51
52 Hydrologic Conditions in the Lower ACF and Parts of the ASO River Basins, Ga., Fla., and Ala., July 2011

Table 3. Water levels in the Upper Floridan aquifer, July 2011 and November 2008.—Continued

[Vertical datum is NAVD 88; ddmmss, degree, minute, second; N, north; W, west; ft, feet; —, no data; –, measurement above land surface]

State County Site number Station name

Latitude Longitude Altitude of 

land surface

(ft)

(ddmmss)

Georgia Turner 314302083361101 17M035 31°43'02"N 83°36'11"W 388.25 

Georgia Turner 314618083412702 16N013 31°46'18"N 83°41'27"W 396.76 

Georgia Turner 314716083311401 17N011 31°47'16"N 83°31'14"W 366.68 

Georgia Wilcox 315933083183101 19P005 31°59'34"N 83°18'32"W 254.29 

Georgia Worth 312157083530301 14J019 31°21'58"N 83°53'03"W 389.49 

Georgia Worth 312358083583201 14K008 31°23'59"N 83°58'32"W 408 

Georgia Worth 312529083423501 16K013 31°25'27"N 83°42'35"W 374 

Georgia Worth 312550083552901 14K013 31°25'51"N 83°55'29"W 432.49 

Georgia Worth 312223083560301 14J022 31°22'24"N 83°56'03"W 417.49 

Georgia Worth 312846083545201 14K012 31°28'47"N 83°54'52"W 399.49 

Georgia Worth 313027083570901 14L013 31°30'28"N 83°57'09"W 279.49 

Georgia Worth 313146083491601 15L020 31°31'47"N 83°49'16"W 419 

Georgia Worth 313400083555801 14L006 31°34'01"N 83°55'58"W 331.48 

Georgia Worth 313729083550301 14L014 31°37'30"N 83°55'03"W 283.43 

Georgia Worth 313909083491201 15M005 31°39'10"N 83°49'12"W 322 

Georgia Worth 314123083495801 15M004 31°41'24"N 83°49'583"W 341 

Georgia Worth 314330084005402 13M006 31°43'31"N 84°00'51"W 237.44 

Georgia Worth 312635083560401 14K061 31°26'35"N 83°56'040"W 422 

Georgia Worth 313352083570801 14L059 31°33'52"N 83°57'08"W 255 

Georgia Worth 315008083545601 14N015 31°50'08"N 83°54'56"W 269 
Table 3. Water levels in the Upper Floridan aquifer, July 2011 and November 2008.—Continued

[Vertical datum is NAVD 88; ddmmss, degree, minute, second; N, north; W, west; ft, feet; —, no data; –, measurement above land surface]

Station name

Date

measured

in 2011

Depth to water

below land 

surface (ft)

Altitude

of water 

surface

(ft)

Date

measured

in 2008

Depth to

water below 

land surface

(ft)

Altitude

of water 

surface 

(ft)

Water-level

change from

2008 to 2011

(ft) 

17M035 7/17/2011 189.70 198.55 11/6/2008 185.70 202.55 4.00

16N013 7/18/2011 134.39 262.37 11/3/2008 135.35 261.41 –0.96

17N011 7/18/2011 164.34 202.34 11/7/2008 161.90 204.78 2.44

19P005 7/21/2011 99.14 155.15 — — — —

14J019 7/20/2011 212.01 177.48 11/5/2008 203.42 186.07 8.59

14K008 7/20/2011 226.03 181.97 11/4/2008 224.82 183.18 1.21

16K013 7/20/2011 220.21 153.79 11/5/2008 192.85 181.15 27.36

14K013 7/20/2011 254.18 178.31 11/4/2008 243.80 188.69 10.38

14J022 7/20/2011 248.53 168.96 — — — —

14K012 7/21/2011 201.42 198.07 11/4/2008 189.90 209.59 11.52

14L013 7/21/2011 74.73 204.76 11/4/2008 74.90 204.59 –0.17

15L020 7/21/2011 217.32 201.68 11/4/2008 214.73 204.74 3.06

14L006 7/22/2011 113.10 218.38 11/3/2008 112.50 218.98 0.60

14L014 7/22/2011 52.21 231.22 11/4/2008 50.35 233.08 1.86

15M005 7/22/2011 80.82 241.18 11/3/2008 80.88 241.12 –0.06

15M004 7/21/2011 88.87 252.13 11/3/2008 89.45 251.55 –0.58

13M006 7/22/2011 30.41 207.03 11/3/2008 9.39 228.05 21.02

14K061 7/21/2011 226.17 195.83 — — — —

14L059 7/22/2011 49.73 205.27 — — — —

14N015 7/22/2011 35.35 233.65 — — — —

Table 3 53
54 Hydrologic Conditions in the Lower ACF and Parts of the ASO River Basins, Ga., Fla., and Ala., July 2011

Table 4. Streamflow measurements collected in Alabama, Florida, and Georgia, July 2011 and November 2008.—Continued

[ddmmss, degree, minute, second; N, north, W, west; ft3/s, cubic feet per second; ds, downstream, us, upstream; —, no data]

State County Site number Site name

Latitude Longitude Date

measured

in 2011

Discharge

(ft3

/s)

Date 

measured 

in 2008

Discharge

(ft3/s)

Change in 

discharge

from 2008 

(ddmmss) to 2011

Alabama Houston 02358770 Big Creek near 

Madrid

31°01'14"N 85°21'01"W 7/22/2011 11.3 — — —

Florida Calhoun 303604084571700 Apalachicola River 

at mile 96

30°35'39"N 84°56'46"W 7/21/2011 8,110 — — —

Florida Calhoun 303238084590900 Apalachicola River 

at mile 90

30°31'59"N 84°59'05"W 7/21/2011 8,040 — — —

Florida Calhoun 02358684 Apalachicola River 

near Sweetwater 

(near mile 87.6)

30°30'24"N 84°59'29"W 7/21/2011 7,910 — — —

Florida Calhoun 302817084592100 Apalachicola River 

at mile 84 (at 

Alum Bluff)

30°28'10"N 84°59'13"W 7/23/2011 8,980 — — —

Florida Calhoun 302707084595900 Apalachicola River 

at mile 82

30°26'40"N 84°59'38"W 7/23/2011 9,110 — — —

Florida Calhoun 302147085022700 Apalachicola River 

at mile 68

30°21'28"N 85°02'16"W 7/24/2011 8,480 — — —

Florida Calhoun 02358661 Ocheese Creek 

near Atha

30°34'31"N 84°59'22"W 7/21/2011 2.36 — — —

Florida Calhoun 02358998 Holliman Branch 

near Atha

30°32'43"N 85°09'33"W 7/21/2011 0.594 — — —

Florida Calhoun 02359035 Fourmile Creek 

near Clarkdale

30°26'41"N 85°10'59"W 7/21/2011 40.4 — — —

Florida Calhoun 302607085025501 Sutton Creek at 

Blountstown

30°26'07"N 85°02'55"W 7/20/2011 1.3 — — —

Florida Calhoun 02359059 Juniper Creek

at Frink

30°21'30"N 85°12'45"W 7/21/2011 61.9 — — —

Florida Calhoun 02359012 Tenmile Creek

near Clarksville

30°30'01"N 85°12'01"W 7/21/2011 26.3 — — —

Florida Calhoun 02358683 Graves Creek 

at Selman

30°31'45"N 85°01'48"W 7/20/2011 11.9 — — —

Florida Calhoun 02358696 Stafford Creek

near Selman

30°29'55"N 85°02'31"W 7/20/2011 1.28 — — —

Florida Calhoun 302504085023401 Sutton Creek near 

Blountstown

30°25'04"N 85°02'34"W 7/20/2011 0 — — —

Florida Calhoun 02358700 Apalachicola 

River near

Blountstown

30°25'31"N 85°01'53"W 7/23/2011 8,490 — — —

Florida Calhoun 301428085053600 Apalachicola River 

at mile 55

30°14'28"N 85°05'36"W 7/22/2011 7,750 — — —

Florida Gadsden 304048084523800 Apalachicola River 

at mile 104

30°40'29"N 84°52'23"W 7/20/2011 8,000 — — —

Florida Gadsden 303923084534500 Apalachicola River 

at mile 102

30°39'14"N 84°53'27"W 7/20/2011 7,970 — — —

Florida Gadsden 02358634 Apalachicola River 

near Sneads (near 

mile 100.2)

30°38'02"N 84°54'14"W 7/20/2011 7,870 — — —

Florida Gadsden 303719084554000 Apalachicola River 

at mile 98

30°36'48"N 84°55'24"W 7/21/2011 8,230 — — —

Florida Gadsden 02358519 Mosquito Creek at 

Chattahoochee

30°41'19"N 84°50'30"W 7/21/2011 32.7 — — —
Table 4. Streamflow measurements collected in Alabama, Florida, and Georgia, July 2011 and November 2008.—Continued

[ddmmss, degree, minute, second; N, north, W, west; ft3/s, cubic feet per second; ds, downstream, us, upstream; —, no data]

State County Site number Site name

Latitude Longitude Date

measured

in 2011

Discharge

(ft3

/s)

Date 

measured 

in 2008

Discharge

(ft3/s)

Change in 

discharge

from 2008 

(ddmmss) to 2011

Florida Gadsden 02358600 Flat Creek near 

Chattahoochee

30°37'43"N 84°50'06"W 7/21/2011 13.7 — — —

Florida Gadsden 02329000 Ochlockonee River 

near Havana

30°33'15"N 84°23'03"W 7/19/2011 56 — — —

Florida Gulf 02358754 Apalachicola River 

near Wewahitchka 

(mile 44.2)

30°09'16"N 85°08'06"W 7/22/2011 8,470 — — —

Florida Gulf 02359101 Chipola River above 

Dead Lakes outlet 

near Wewahitchka

30°07'38"N 85°10'39"W 7/24/2011 686 — — —

Florida Jackson 304220084514900 Apalachicola River 

below Jim

Woodruff Dam

30°42'24"N 84°51'45"W 7/20/2011 7,990 — — —

Florida Jackson 304221084520600 Apalachicola River 

at mile 106

30°42'13"N 84°51'40"W 7/20/2011 7,630 — — —

Florida Jackson 02358772 Cowarts Creek at 

State Highway 2 

near Malone

30°56'50"N 85°15'32"W 7/23/2011 21.2 — — —

Florida Jackson 02358800 Chipola River 

at Oakdale

30°43'02"N 85°12'01"W 7/24/2011 238 — — —

Florida Jackson 304913085144201 Blue Hole Spring 

at foot bridge 

near Marianna

30°49'13"N 85°14'42"W 7/20/2011 -0.37 — — —

Florida Jackson 304948085140501 Baltzell Spring 30°49'48"N 85°14'05"W 7/20/2011 14.6 — — —

Florida Jackson 02358900 Dry Creek near 

Oakdale

30°40'29"N 85°12'32"W 7/23/2011 83.7 — — —

Florida Jackson 02358795 Jackson Blue Spring 

near Marianna

30°47'26"N 85°08'27"W 7/22/2011 186 — — —

Florida Jackson 02358784 Muddy Branch 

near Marianna

30°49'58"N 85°12'31"W 7/22.2011 1.17 — — —

Florida Jackson 304217084514800 Apalachicola River 

below Jim 

Woodruff Dam

30°42'17"N 84°51'48"W 7/20/2011 7,870 — — —

Florida Liberty 303501084563100 Rock Creek at Torreya 

State Park near 

Johnson Landing

30°35'01"N 84°56'31"W 7/21/2011 3.1 — — —

Florida Liberty 303526084582100 Apalachicola River 

at mile 94

30°34'52"N 84°57'49"W 7/21/2011 8,460 — — —

Florida Liberty 02358664 Apalachicola River 

near Rock Bluff 

(near mile 92.2)

30°33'44"N 84°57'47"W 7/21/2011 7,910 — — —

Florida Liberty 301719084355900 Apalachicola River 

at mile 86

30°28'52"N 84°59'59"W 7/23/2011 9,160 — — —

Florida Liberty 02358685 Little Sweetwater 

Creek near Bristol

30°28'23"N 84°59'04"W 7/23/2011 5.26 — — —

Florida Liberty 302642084595000 Apalachicola River 

at mile 80

30°26'25"N 84°59'30"W 7/23/2011 8,870 — — —

Florida Liberty 302442085004100 Apalachicola River 

at mile 75

30°24'25"N 85°00'55"W 7/24/2011 8,690 — — —

Table 4 55
56 Hydrologic Conditions in the Lower ACF and Parts of the ASO River Basins, Ga., Fla., and Ala., July 2011

Table 4. Streamflow measurements collected in Alabama, Florida, and Georgia, July 2011 and November 2008.—Continued

[ddmmss, degree, minute, second; N, north, W, west; ft3/s, cubic feet per second; ds, downstream, us, upstream; —, no data]

State County Site number Site name

Latitude Longitude Date

measured

in 2011

Discharge

(ft3

/s)

Date 

measured 

in 2008

Discharge

(ft3/s)

Change in 

discharge

from 2008 

(ddmmss) to 2011

Florida Liberty 302200085010100 Apalachicola River 

at mile 72

30°23'00"N 85°01'00"W 7/24/2011 8,740 — — —

Florida Liberty 301935085020000 Apalachicola River 

at mile 64 (at 

Estiffanulga)

30°18'51"N 85°02'00"W 7/24/2011 8,300 — — —

Florida Liberty 301759085032700 Apalachicola River 

at mile 60

30°17'36"N 85°03'16"W 7/22/2011 7,860 — — —

Florida Liberty 301258085065300 Apalachicola River 

at mile 50

30°12'35"N 85°06'32"W 7/22/2011 6,150 — — —

Florida Liberty 023587547 Apalachicola River 

at mile 36 at 

Wewahitchka

30°05'19"N 85°08'47"W 7/22/2011 4,970 — — —

Florida Liberty 02358673 Sweetwater Creek 

near Rock Bluff

30°31'29"N 84°58'22"W 7/20/2011 22 — — —

Florida Liberty 02358742 Little Gully Creek 

near Esiffanulga

30°15'41"N 85°00'47"W 7/22/2011 0.042 — — —

Florida Liberty 02358745 Mary Branch 

at Orange

30°13'54"N 85°01'36"W 7/22/2011 0.892 — — —

Florida Liberty 02358750 Gregory Mill Creek 

at Orange

30°10'25"N 85°04'08"W 7/22/2011 1.68 — — —

Florida Liberty 02358737 Big Gully Creek 

near Orange

30°14'52"N 85°00'18"W 7/22/2011 4.76 — — —

Georgia Atkinson 02316253 Willacoochee River 

U.S. 82, near 

Willacoochee

31°21'37"N 83°06'16"W 7/22/2011 0 11/4/2008 18.3 18.3

Georgia Baker 02352980 Cooleewahee Creek 

near Newton

31°19'49"N 84°19'50"W 7/22/2011 0.316 11/5/2008 6.72 6.40

Georgia Baker 02353000 Flint River

at Newton

31°18'25"N 84°20'20"W 7/23/2011 2,070 11/5/2008 2,959.61 889.61

Georgia Baker 02353500 Ichawaynochaway 

Creek at Milford

31°22'58"N 84°32'47"W 7/22/2011 258 11/10/2008 298.36 40.36

Georgia Baker 02354500 Chickasawhatchee 

Creek at Elmodel

31°21'02"N 84°28'57"W 7/22/2011 1.1 11/4/2008 95.56 94.46

Georgia Baker 02354800 Ichawaynochaway

Creek near 

Elmodel

31°17'38"N 84°29'31"W 7/22/2011 220 11/5/2008 442.01 222.01

Georgia Baker 02355350 Ichawaynochaway 

Creek below 

Newton

31°13'03"N 84°28'15"W 7/23/2011 293 11/6/2008 502.45 209.45

Georgia Baker 02355600 Big Cypress Creek 

near Newton

31°12'15"N 84°29'53"W 7/23/2011 0 11/4/2008 0 0

Georgia Baker 02352795 Flint River at Red 

Bluff above 

Baconton

31°24'56"N 84°09'20"W 7/21/2011 2,270 — — —

Georgia Baker 02352805 Flint River approximately 2 miles 

us Raccoon Cr

near Baconton

31°23'14"N 84°11'53"W 7/22/2011 2,030 — — —

Georgia Baker 02352939 Flint River

Culpepper Spring 

below Baconton

31°20'44"N 84°13'53"W 7/22/2011 2,000 — — —
Table 4. Streamflow measurements collected in Alabama, Florida, and Georgia, July 2011 and November 2008.—Continued

[ddmmss, degree, minute, second; N, north, W, west; ft3/s, cubic feet per second; ds, downstream, us, upstream; —, no data]

State County Site number Site name

Latitude Longitude Date

measured

in 2011

Discharge

(ft3

/s)

Date 

measured 

in 2008

Discharge

(ft3/s)

Change in 

discharge

from 2008 

(ddmmss) to 2011

Georgia Baker 02352945 Flint River approx

3 miles us

Cooleewahee Creek 

near Newton

31°19'47"N 84°17'09"W 7/22/2011 1,930 — — —

Georgia Baker 02353075 Flint River 1.3 miles 

us Ichawaynochaway near Camilla

31°10'35"N 84°27'04"W 7/23/2011 2,080 — — —

Georgia Baker 02353080 Flint River above 

Ichawaynochaway

Creek, near Newton

31°10'09"N 84°28'00"W 7/23/2011 1,960 — — —

Georgia Baker 02355650 Ichawaynochaway 

Creek at mouth, 

near Newton

31°10'15"N 84°28'03"W 7/23/2011 325 — — —

Georgia Baker 02355670 Flint River above 

Bovine Springs, 

near Hopeful

31°06'14"N 84°30'25"W 7/23/2011 2,400 — — —

Georgia Ben Hill 02316120 Turkey Branch at 

Edward Road,

near Fitzgerald

31°40'46"N 83°15'03"W 7/21/2011 0 11/5/2008 0 0

Georgia Berrien 02316000 Alapaha River

near Alapaha

31°23'04"N 83°11'33"W 7/21/2011 0 11/5/2008 19.16 19.16

Georgia Berrien 02317668 Hardy Mill Creek at 

Sapps Lake Road, 

near Enigma

31°21'45"N 83°19'30"W 7/22/2011 0 11/4/2008 0 0

Georgia Calhoun 02353265 Ichawaynochaway 

Creek at Ga. 37, 

near Morgan

31°31'37"N 84°34'58"W 7/21/2011 175 11/5/2008 162.19 –12.81

Georgia Calhoun 02353400 Pachitla Creek

near Edison

31°33'18"N 84°40'51"W 7/21/2011 75 11/1/2008 106.84 31.84

Georgia Calhoun 02353460 Ichawaynochaway 

Creek at Ga. 62, 

near Leary

31°28'10"N 84°34'15"W 7/22/2011 259 11/3/2008 307 48

Georgia Calhoun 02354350 Chickasawhatchee 

Creek near Albany

31°35'38"N 84°27'12"W 7/23/2011 5.2 11/5/2008 51.5 46.3

Georgia Calhoun 02354410 Chickasawhatchee 

Creek near Leary

31°30'13"N 84°25'50"W 7/23/2011 0 11/5/2008 52.44 52.44

Georgia Colquitt 02317830 Little River at Kinard 

Bridge Road,

near Lenox

31°15'16"N 83°31'00"W 7/23/2011 0 11/3/2008 46.6 46.6

Georgia Colquitt 02317874 Warrior Creek Ga. 256, 

near Norman Park

31°18'41"N 83°41'07"W 7/22/2011 0 11/3/2008 0 0

Georgia Colquitt 02317886 Warrior Creek (Cr 486)

near Ellenton

31°15'16"N 83°34'31"W 7/21/2011 0 11/3/2008 54.6 54.6

Georgia Colquitt 02317920 Ty Ty Creek (Cr 486) 

near Ellenton

31°15'33"N 83°34'22"W 7/21/2011 0 11/3/2008 0 0

Georgia Colquitt 02318013 Bear Creek at Cook 

Road, near Moultrie

31°09'04"N 83°39'09"W 7/21/2011 0 11/4/2008 0 0

Georgia Colquitt 02318014 Indian Creek at Tillman 

Road, near Berlin

31°05'44"N 83°35'04"W 7/22/2011 0 11/4/2008 11.6 11.6

Georgia Colquitt 02318538 Okapilco Creek at 

James Buckner 

Road, near Moultrie

31°15'18"N 83°47'38"W 7/22/2011 0 11/4/2008 2.28 2.28

Table 4 57
58 Hydrologic Conditions in the Lower ACF and Parts of the ASO River Basins, Ga., Fla., and Ala., July 2011

Table 4. Streamflow measurements collected in Alabama, Florida, and Georgia, July 2011 and November 2008.—Continued

[ddmmss, degree, minute, second; N, north, W, west; ft3/s, cubic feet per second; ds, downstream, us, upstream; —, no data]

State County Site number Site name

Latitude Longitude Date

measured

in 2011

Discharge

(ft3

/s)

Date 

measured 

in 2008

Discharge

(ft3/s)

Change in 

discharge

from 2008 

(ddmmss) to 2011

Georgia Colquitt 02318591 Okapilco Creek at 

Old Berlin Road, 

near Moultrie

31°06'04"N 83°43'42"W 7/21/2011 0 11/4/2008 3.29 3.29

Georgia Colquitt 02327195 Ochlockonee River 

at Ga. 133,

near Moultrie

31°14'50"N 83°50'03"W 7/21/2011 19.19 11/4/2008 0 –19.19

Georgia Colquitt 02327205 Ochlockonee River 

Lower Meigs Road, 

near Moultrie

31°08'32"N 83°48'13"W 7/22/2011 18.79 11/4/2008 7.21 –11.58

Georgia Colquitt 02327250 Little Creek at

Lower Meigs Road, 

near Moultrie

31°06'52"N 83°52'50"W 7/22/2011 0 11/5/2008 0.45 0.45

Georgia Colquitt 02327320 Bridge Creek at 

Funston-Sale 

City Road,

near Doerun

31°14'10"N 83°55'51"W 7/21/2011 14.77 11/5/2008 1.9 –12.87

Georgia Colquitt 02327335 Bridge Creek Zion 

Grove Church Road 

near Coolidge

31°04'02"N 83°55'05"W 7/23/2011 0 11/5/2008 3.23 3.23

Georgia Colquitt 02327413 Little Ochlockonee 

River (CR 228) 

near Hartsfield

31°10'42"N 83°59'06"W 7/21/2011 0 11/5/2008 0 0

Georgia Colquitt 02327415 Little Ochlockonee 

River at Ga. 111, 

near Moultrie

31°07'02"N 83°58'42"W 7/21/2011 0 11/5/2008 0.6 0.6

Georgia Colquitt 02327430 Lost Creek at Ga. 111, 

near Meigs

31°06'21"N 84°00'31"W 7/21/2011 0 — — —

Georgia Colquitt 02317915 Ty Ty Creek at

Livingston Bridge 

Road, near Omega

31°16'08"N 83°35'07"W 7/21/2011 0 — — —

Georgia Crisp 02350220 Gum Creek at

U.S. 280, at Coney

31°57'41"N 83°53'05"W 7/21/2011 41.8 11/6/2008 9.82 –31.98

Georgia Crisp 02350300 Cedar Creek

near Cordele

31°54'46"N 83°51'18"W 7/23/2011 0 — — —

Georgia Crisp 02350360 Swift Creek

near Warwick

31°50'21"N 83°51'18"W 7/23/2011 7.43 11/3/2008 7.4 –0.03

Georgia Decatur 02329385 Swamp Creek

at U.S. 27, near 

Attapulgus

30°43'11"N 84°24'41"W 7/22/2011 0 — — —

Georgia Decatur 02355950 Big Slough at 

Ga. 97, near 

Bainbridge

30°56'06"N 84°31'23"W 7/21/2011 0 11/3/2008 0 0

Georgia Decatur 02357000 Spring Creek

near Iron City

31°02'25"N 84°44'24"W 7/23/2011 89 11/4/2008 136.24 47.24

Georgia Decatur 02357050 Spring Creek at

U.S. 84, at Brinson

30°58'31"N 84°44'44"W 7/24/2011 81.2 11/4/2008 198 116.8

Georgia Decatur 02357150 Spring Creek near 

Reynoldsville

30°54'15"N 84°44'57"W 7/22/2011 170 11/6/2008 423.75 253.75

Georgia Decatur 02357073 Yates Spring 30°55'23"N 84°44'41"W 7/24/2011 24.1 — — —

Georgia Decatur 02357072 Above Yates Spring 30°55'24"N 84°44'41"W 7/24/2011 91.1 — — —

Georgia Decatur 02357065 Spring 3 30°56'02"N 84°44'39"W 7/24/2011 7.05 — — —
Table 4. Streamflow measurements collected in Alabama, Florida, and Georgia, July 2011 and November 2008.—Continued

[ddmmss, degree, minute, second; N, north, W, west; ft3/s, cubic feet per second; ds, downstream, us, upstream; —, no data]

State County Site number Site name

Latitude Longitude Date

measured

in 2011

Discharge

(ft3

/s)

Date 

measured 

in 2008

Discharge

(ft3/s)

Change in 

discharge

from 2008 

(ddmmss) to 2011

Georgia Decatur 02357061 Spring 5 

(Godby Spring)

30°56'07"N 84°44'36"W 7/24/2011 8.02 — — —

Georgia Decatur 02357060 Above Springs 3 and 5 30°56'07"N 84°44'35"W 7/24/2011 104 — — —

Georgia Decatur 02357070 Above Spring 2 30°55'40"N 84°44'38"W 7/24/2011 108 — — —

Georgia Decatur 02355685 Flint River above 

Westrick Spring 

near Steinham 

Store

31°00'38"N 84°31'05"W 7/24/2011 2,520 — — —

Georgia Decatur 02355687 Westrick Spring

outflow near 

Steinham Store

31°00'50"N 84°30'59"W 7/24/2011 7.73 — — —

Georgia Decatur 02355690 Flint River below 

Westrick Spring, 

near Lynn

30°58'02"N 84°33'26"W 7/24/2011 2,630 — — —

Georgia Dooly 02349900 Turkey Creek

at Byromville

32°11'44"N 83°54'08"W 7/22/2011 2.9 11/4/2008 4.83 1.93

Georgia Dooly 02349910 Turkey Creek 

County Road,

near Drayton

32°06'14"N 83°56'23"W 7/23/2011 14.5 11/6/2008 18.9 4.4

Georgia Dooly 02349960 Little Pennahatchee 

Creek near Lilly

32°07'01"N 83°51'44"W 7/23/2011 0.038 11/5/2008 1.08 1.04

Georgia Dooly 02349980 Pennahatchee Creek 

County Road

near Drayton

32°05'44"N 83°55'04"W 7/23/2011 1.74 11/5/2008 9.14 7.4

Georgia Dougherty 02350543 Piney Woods Creek 

above Albany

31°36'09"N 84°02'58"W 7/22/2011 0 11/4/2008 0 0

Georgia Dougherty 02352500 Flint River

at Albany

31°35'39"N 84°08'39"W 7/23/2011 1,280 — 2,686.07 1,406.07

Georgia Dougherty 02352760 Dry Creek

near Putney

31°27'05"N 84°08'07"W 7/23/2011 0 11/5/2008 0 0

Georgia Dougherty 02352970 Cooleewahee Creek 

near Albany

31°30'14"N 84°17'28"W 7/22/2011 0 11/5/2008 10.8 10.8

Georgia Dougherty 02354440 Kiokee Creek

near Pretoria

31°30'13"N 84°22'01"W 7/23/2011 0 11/5/2008 0 0

Georgia Dougherty 02350533 Flint River Upper Dam 

near Albany

31°38'04"N 84°02'25"W 7/19/2011 1,440 — — —

Georgia Dougherty 02352648 Flint River above 

Radium Springs, 

near Radium 

Springs

31°31'14"N 84°08'28"W 7/21/2011 1,880 — — —

Georgia Dougherty 02352650 Radium Springs 

(Blue Springs) 

near Albany

31°31'13"N 84°08'26"W 7/21/2011 0.28 — — —

Georgia Dougherty 02352700 Flint River 5 miles 

ds Radium Springs 

near Putney

31°27'32"N 84°09'20"W 7/21/2011 2,010 — — —

Georgia Dougherty 02352790 Flint River

(Putney Intake) 

near Putney

31°26'40"N 84°08'16"W 7/21/2011 2,020 — — —

Table 4 59
60 Hydrologic Conditions in the Lower ACF and Parts of the ASO River Basins, Ga., Fla., and Ala., July 2011

Table 4. Streamflow measurements collected in Alabama, Florida, and Georgia, July 2011 and November 2008.—Continued

[ddmmss, degree, minute, second; N, north, W, west; ft3/s, cubic feet per second; ds, downstream, us, upstream; —, no data]

State County Site number Site name

Latitude Longitude Date

measured

in 2011

Discharge

(ft3

/s)

Date 

measured 

in 2008

Discharge

(ft3/s)

Change in 

discharge

from 2008 

(ddmmss) to 2011

Georgia Early 02343801 Chattahoochee River 

near Columbia, Ala.

31°15'34"N 85°06'37"W 7/21/2011 4,230 11/3/2008 4,559.07 329.07

Georgia Early 02343940 Sawhatchee Creek at 

Cedar Springs

31°10'51"N 85°02'37"W 7/22/2011 18 11/3/2008 26.05 8.05

Georgia Early 02356100 Spring Creek

near Arlington

31°24'48"N 84°46'33"W 7/22/2011 2.96 11/5/2008 5.89 2.93

Georgia Early 02356220 Spring Creek

at Ga. 200,

at Damascus

31°18'21"N 84°44'59"W 7/22/2011 0 11/5/2008 22.7 22.7

Georgia Early 02356290 Dry Creek

near Blakely

31°22'23"N 84°52'59"W 7/22/2011 10.4 11/5/2008 8.66 –1.74

Georgia Early 02356460 Dry Creek

at Hentown

31°17'03"N 84°49'10"W 7/22/2011 43.8 11/5/2008 25.9 –17.9

Georgia Early 02344000 Chattahoochee River 

at Alaga, Ala.

31°06'55"N 85°02'43"W 7/21/2011 6,860 — — —

Georgia Grady 02327860 Popple Branch

at Ga. 179,

near Whigham

30°55'36"N 84°20'18"W 7/21/2011 0.44 11/4/2008 0.57 0.13

Georgia Grady 02328000 Tired Creek

near Cairo

30°51'55"N 84°15'46"W 7/21/2011 3.37 11/4/2008 10.1 6.73

Georgia Grady 02328025 Parkers Mill Creek 

at Pine Park Road, 

near Cairo

30°50'18"N 84°13'34"W 7/22/2011 4.15 11/4/2008 4.45 0.3

Georgia Grady 02328082 Little Tired Creek 

at Pine Park Road, 

near Cairo

30°50'31"N 84°12'03"W 7/22/2011 0.585 11/4/2008 2.03 1.445

Georgia Grady 02328200 Ochlockonee River 

near Calvary

30°43'54"N 84°14'12"W 7/22/2011 40.2 11/3/2008 209 168.8

Georgia Irwin 02315919 Big Creek at

Crystal Lake Road, 

near Irwinville

31°40'20"N 83°25'12"W 7/21/2011 0 11/3/2008 0 0

Georgia Irwin 02315920 Alapaha River

at Ga. 125/32

near Irwinville

31°37'53"N 83°25'05"W 7/21/2011 0 11/3/2008 0 0

Georgia Irwin 02315935 Sand Creek

at Ga. 125,

near Irwinville

31°36'35"N 83°26'41"W 7/21/2011 0 11/3/2008 0 0

Georgia Irwin 02316170 Willacoochee River 

at Ga. 32,

near Ocilla

31°35'45"N 83°10'18"W 7/22/2011 16 11/4/2008 0 –16

Georgia Irwin 02316216 Reedy Creek at 

Hickory Road, 

near Ocilla

31°30'58"N 83°15'40"W 7/22/2011 0 11/4/2008 0 0

Georgia Irwin 02316241 Little Brushy Creek 

at Orchid Road, 

near Ocilla

31°30'28"N 83°12'32"W 7/22/2011 0 11/4/2008 2.59 2.59

Georgia Lee 02350512 Flint River at Ga. 32, 

near Oakfield

31°43'30"N 84°01'07"W 7/23/2011 1,090 11/4/2008 3,182.29 2,092.29

Georgia Lee 02350860 Kinchafoonee Creek 

at Ga. 118, near 

Smithville

31°52'07"N 84°18'18"W 7/24/2011 87.6 11/6/2008 188 100.4
Table 4. Streamflow measurements collected in Alabama, Florida, and Georgia, July 2011 and November 2008.—Continued

[ddmmss, degree, minute, second; N, north, W, west; ft3/s, cubic feet per second; ds, downstream, us, upstream; —, no data]

State County Site number Site name

Latitude Longitude Date

measured

in 2011

Discharge

(ft3

/s)

Date 

measured 

in 2008

Discharge

(ft3/s)

Change in 

discharge

from 2008 

(ddmmss) to 2011

Georgia Lee 02350900 Kinchafoonee Creek 

at Pinewood Road, 

near Dawson

31°45'52"N 84°15'12"W 7/22/2011 220 11/4/2008 207.15 –12.85

Georgia Lee 02351000 Kinchafoonee Creek 

at Ga. 32,

near Leesburg

31°43'11"N 84°11'08"W 7/21/2011 213 11/4/2008 215 2

Georgia Lee 02351700 Muckalee Creek

near Smithville

31°53'44"N 84°11'52"W 7/21/2011 97.8 11/6/2008 114 16.2

Georgia Lee 02351800 Muckaloochee Creek 

at Smithville

31°54'20"N 84°14'44"W 7/24/2011 11.6 11/6/2008 27.2 15.6

Georgia Lee 02351890 Muckalee Creek

at Ga. 195,

near Leesburg

31°46'34"N 84°08'22"W 7/24/2001 78 11/4/2008 131.18 53.18

Georgia Lee 02351900 Muckalee Creek

near Leesburg

31°43'56"N 84°07'30"W 7/21/2011 160 11/4/2008 140 –20

Georgia Lee 02351930 Muckalee Creek 

below Leesburg

31°39'06"N 84°06'27"W 7/23/2011 105 11/4/2008 152 47

Georgia Lee 02350430 Flint River above 

Chokee Creek 

near Wawick

31°50'08"N 83°57'56"W 7/18/2011 1,400 — — —

Georgia Lee 02350480 Chokee Creek at mouth

near Warwick

31°50'20"N 83°58'04"W 7/18/2011 11 — — —

Georgia Lee 02350489 Hawkins Branch 

at mouth

near Oakfield

31°48'14"N 84°00'25"W 7/18/2011 0 — — —

Georgia Lee 02350490 Flint River below 

Hawkins Branch 

near Oakfield

31°48'08"N 84°00'31"W 7/18/2011 1,390 — — —

Georgia Lee 02350511 Flint River above 

Philema Branch 

near Oakfield

31°44'07"N 84°00'34"W 7/18/2011 1,460 — — —

Georgia Lee 023505265 Flint River above 

Mill Creek,

near Albany

31°39'31"N 84°00'56"W 7/19/2011 1,500 — — —

Georgia Macon 02349605 Flint River at Ga. 26, 

near Montezuma

32°17'35"N 84°20'37"W 7/22/2011 846 11/4/2008 631.26 –214.74

Georgia Macon 02349660 Sweetwater Creek

at Andersonville

32°11'10"N 84°08'03"W 7/22/2011 8.79 11/4/2008 11.14 2.35

Georgia Macon 02349740 Hogcrawl Creek 

(S-533) near 

Montezuma

32°13'03"N 83°59'30"W 7/22/2011 18.7 11/5/2008 21.5 2.8

Georgia Marion 02350572 Kinchafoonee Creek 

near Buena Vista

32°15'23"N 84°34'41"W 7/21/2011 14.1 — —

Georgia Miller 02356600 Long Branch

near Colquitt

31°12'50"N 84°43'54"W 7/23/2011 0 11/4/2008 0 0

Georgia Miller 02356640 Spring Creek at

U.S. 27, at Colquitt

31°10'16"N 84°44'31"W 7/23/2011 126 11/4/2008 93.1 –32.9

Georgia Miller 02356970 Aycocks Creek 

below Colquitt

31°06'20"N 84°46'46"W 7/23/2011 0 11/4/2008 2.76 2.76

Georgia Miller 02356638 Spring Creek approx 

0.25 mi us U.S. 27 

near Colquitt, Ga.

31°10'27"N 84°44'42"W 7/23/2011 100 — — —

Table 4 61
62 Hydrologic Conditions in the Lower ACF and Parts of the ASO River Basins, Ga., Fla., and Ala., July 2011

Table 4. Streamflow measurements collected in Alabama, Florida, and Georgia, July 2011 and November 2008.—Continued

[ddmmss, degree, minute, second; N, north, W, west; ft3/s, cubic feet per second; ds, downstream, us, upstream; —, no data]

State County Site number Site name

Latitude Longitude Date

measured

in 2011

Discharge

(ft3

/s)

Date 

measured 

in 2008

Discharge

(ft3/s)

Change in 

discharge

from 2008 

(ddmmss) to 2011

Georgia Mitchell 02327448 Big Creek at Ga. 111, 

near Meigs

31°05'22"N 84°02'49"W 7/24/2011 0 11/4/2008 2.22 2.22

Georgia Mitchell 02352920 Raccoon Creek

at Ga. 3,

near Baconton

31°21'49"N 84°10'04"W 7/22/2011 0 11/5/2008 0 0

Georgia Mitchell 02355785 Big Slough at Ga. 97, 

near Camilla

31°13'07"N 84°15'08"W 7/22/2011 0 11/4/2008 0 0

Georgia Mitchell 02355830 Big Slough at Ga. 65, 

below Camilla

31°09'03"N 84°17'19"W 7/21/2011 0 11/4/2008 0 0

Georgia Mitchell 02355880 Big Slough at Ga. 179, 

near Pelham

31°05'25"N 84°19'32"W 7/21/2011 0 11/4/2008 0 0

Georgia Randolph 02353200 Little Ichawaynochaway Creek 

near Shellman

31°46'46"N 84°36'13"W 7/21/2011 20.2 11/3/2008 32.1 11.9

Georgia Randolph 02353350 Carter Creek

near Carnegie

31°38'13"N 84°43'14"W 7/21/2011 24.5 11/3/2008 27.5 3

Georgia Seminole 02357310 Fishpond Drain near 

Donalsonville

30°58'45"N 84°52'17"W 7/23/2011 1.22 11/4/2008 0.19 –1.03

Georgia Seminole 02344040 Chattahoochee River 

near Steam Mill

30°58'40"N 85°00'19"W 7/22/2011 1,610 — — — 

Georgia Stewart 02343200 Pataula Creek

near Lumpkin

31°56'04"N 84°48'12"W 7/23/2011 26.7 11/3/2008 32.5 5.8

Georgia Sumter 02350080 Lime Creek

near Cobb

32°02'02"N 83°59'47"W 7/23/2011 4.6 11/5/2008 20.74 16.14

Georgia Sumter 02351500 Muckalee Creek

near Americus

32°04'59"N 84°15'29"W 7/24/2011 29 11/3/2008 58.55 29.55

Georgia Sumter 02351780 Muckaloochee Creek 

near Americus

31°58'38"N 84°18'12"W 7/24/2011 14.2 11/4/2008 14.7 0.5

Georgia Taylor 02349000 Whitewater Creek 

below Rambulette 

Creek, near Butler

32°28'01"N 84°15'58"W 7/21/2011 107 11/6/2008 18.3 –88.7

Georgia Terrell 02353100 Ichawaynochaway 

Creek at U.S. 82, 

near Graves

31°46'17"N 84°33'44"W 7/21/2011 51.3 11/3/2008 62 10.7

Georgia Thomas 02327300 Ochlockonee River 

at Bee Line Road, 

near Chastain

31°02'01"N 83°56'07"W 7/23/2011 1.9 11/5/2008 17.5 15.6

Georgia Thomas 02327350 Ochlockonee River 

tributary near 

Coolidge

31°01'25"N 83°57'35"W 7/23/2011 0.084 11/5/2008 0.295 0.211

Georgia Thomas 02327355 Ochlockonee River 

at Ga. 188,

near Coolidge

31°00'08"N 83°56'21"W 7/23/2011 2.5 11/5/2008 22 19.5
Table 4. Streamflow measurements collected in Alabama, Florida, and Georgia, July 2011 and November 2008.—Continued

[ddmmss, degree, minute, second; N, north, W, west; ft3/s, cubic feet per second; ds, downstream, us, upstream; —, no data]

State County Site number Site name

Latitude Longitude Date

measured

in 2011

Discharge

(ft3

/s)

Date 

measured 

in 2008

Discharge

(ft3/s)

Change in 

discharge

from 2008 

(ddmmss) to 2011

Georgia Thomas 02327370 Big Creek at Ga. 35, 

near Coolidge

30°58'32"N 83°53'16"W 7/24/2011 0 11/6/2008 4.57 4.57

Georgia Thomas 02327460 Little Ochlockonee 

River Ga. 188

near Ochlocknee

30°58'37"N 84°01'12"W 7/23/2011 2.14 11/5/2008 12.1 9.96

Georgia Thomas 02327695 E Branch Barnetts Cr 

Mcmillan Road,

near Ochlocknee

30°56'50"N 84°04'18"W 7/24/2011 0.05 11/5/2008 3.41 3.36

Georgia Tift 02315970 Alapaha River at

Ga. 35, near Tifton

31°31'58"N 83°23'57"W 7/21/2011 0 11/5/2008 0 0

Georgia Tift 02317797 Little River at

Upper Ty Ty 

Road, near Tifton

31°28'55"N 83°35'03"W 7/22/2011 0 11/4/2008 5.32 5.32

Georgia Tift 02317818 Little River (CR 424) 

near Omega

31°21'04"N 83°31'18"W 7/22/2011 0 11/5/2008 21.7 21.7

Georgia Tift 02317900 Ty Ty Creek at

U.S. 82, at Ty Ty

31°28'23"N 83°39'47"W 7/22/2011 0 11/5/2008 8.13 8.13

Georgia Turner 02315740 Double Run Creek 

(CR 250) near 

Rebecca

31°47'32"N 83°29'22"W 7/24/2011 0 11/3/2008 0 0

Georgia Turner 02315850 West Fork Deep 

Creek at Ga. 159 

near Amboy

31°46'01"N 83°37'26"W 7/21/2011 0 11/3/2008 0 0

Georgia Turner 02315905 Deep Creek (CR 250)

near Rebecca

31°43'57"N 83°30'21"W 7/20/2011 1.15 11/3/2008 0 –1.15

Georgia Turner 02317771 Little River at 

Ga. 112,

near Ashburn

31°40'29"N 83°41'26"W 7/22/2011 0 11/3/2008 0.73 0.73

Georgia Webster 02350600 Kinchafoonee Creek 

at Preston

32°03'09"N 84°32'54"W 7/21/2011 40 — — —

Georgia Worth 02317856 Town Creek at 

Melton Road,

near Sylvester

31°29'13"N 83°48'22"W 7/21/2011 0 11/3/2008 1.58 1.58

Georgia Worth 02317866 Horse Creek at Ga. 33, 

near Sylvester

31°26'03"N 83°50'06"W 7/22/2011 0 11/3/2008 0 0

Georgia Worth 02327169 Ochlockonee River

at Brooks Road, 

near Bridgeboro

31°24'01"N 83°53'33"W 7/22/2011 0 11/5/2008 0 0

Georgia Worth 02350509 Jones Creek

near Oakfield

31°45'34"N 83°58'42"W 7/24/2011 1.21 11/3/2008 2.81 1.6

Georgia Worth 02350524 Abrams Creek

near Oakfield

31°43'08"N 83°59'19"W 7/24/2011 3.72 11/3/2008 8.95 5.23

Georgia Worth 02350527 Mill Creek

near Albany

31°40'05"N 83°59'48"W 7/22/2011 7.56 11/4/2008 14.7 7.14

Table 4 63
64 Hydrologic Conditions in the Lower ACF and Parts of the ASO River Basins, Ga., Fla., and Ala., July 2011

Table 5. Stream and spring water-quality data July 20–24, 2011.

[ddmmss, degrees, minutes, seconds, N, north; W, west; °C, degrees Celsius; μS/cm, microsiemens per centimeter]

State County Site number Site name

Longitude Latitude Date

measured 

in 2011

Water

temperature

(°C)

Specific

conductance

(μS/cm)

pH Dissolved

oxygen (ddmmss)

Florida Calhoun 303604084571700 Apalachicola River 

at mile 96

30°35'39"N 84°56'46"W 7/21/2011 29.9 142 7.5 6

Florida Calhoun 303238084590900 Apalachicola River 

at mile 90

30°31'59"N 84°59'05"W 7/21/2011 30.6 142 7.7 6.2

Florida Calhoun 02358684 Apalachicola River 

near Sweetwater 

(near mile 87.6)

30°30'24"N 84°59'29"W 7/21/2011 30.6 141 7.6 6.8

Florida Calhoun 302817084592100 Apalachicola River 

at mile 84 (at 

Alum Bluff)

30°28'10"N 84°59'13"W 7/23/2011 29.3 144 7.5 5.5

Florida Calhoun 302707084595900 Apalachicola River 

at mile 82

30°26'40"N 84°59'38"W 7/23/2011 29.8 144 7.4 5.7

Florida Calhoun 02358700 Apalachicola River 

near Blountstown 

(mile 78)

30°28'47"N 85°01'22"W 7/23/2011 29.8 144 7.5 5.8

Florida Calhoun 302147085022700 Apalachicola River 

at mile 68

30°21'28"N 85°02'16"W 7/24/2011 30.7 139 7.4 6.4

Florida Calhoun 301428085053600 Apalachicola River 

at mile 55

30°14'17"N 85°04'03"W 7/22/2011 30.8 139 7.7 7.2

Florida Calhoun 02358661 Ocheese Creek 

near Altha

30°34'31"N 84°59'22"W 7/21/2011 24 161 6.7 6.5

Florida Calhoun 02358998 Holliman Branch 

near Altha

30°32'43"N 85°09'33."W 7/21/2011 24.7 80 6.4 6.8

Florida Calhoun 02359000 Chipola River 

near Altha

30°32'02"N 85°09'55"W 7/22/2011 25.9 233 7.7 7.6

Florida Calhoun 02359035 Fourmile Creek 

near Clarkdale

30°26'41"N 85°10'59"W 7/21/2011 24.5 20 4.1 7.9

Florida Calhoun 02359059 Juniper Creek 

at Frink

30°21'30"N 85°12'45"W 7/21/2011 24.8 26 3.6 8.2

Florida Calhoun 02359012 Tenmile Creek 

near Clarksville

30°30'01"N 85°12'01"W 7/21/2011 25.1 27 4.4 7.4

Florida Calhoun 02358683 Graves Creek at 

Selman

30°31'45"N 85°01'48"W 7/20/2011 25.8 96 6.7 7.1

Florida Calhoun 02358696 Stafford Creek 

near Selman

30°29'55"N 85°02'31"W 7/20/2011 26.8 126 6.4 4.9

Florida Franklin 02359170 Apalachicola River 

near Sumatra

29°56'57"N 85°00'56"W 7/22/2011 31.1 129 6.5 6.2

Florida Gadsden 304048084523800 Apalachicola River 

at mile 104

30°40'29"N 84°52'23"W 7/20/2011 30.2 138 7.5 6.9

Florida Gadsden 303923084534500 Apalachicola River 

at mile 102

30°39'14"N 84°53'27"W 7/20/2011 30.4 139 7.5 6.6

Florida Gadsden 02358634 Apalachicola River 

near Sneads 

(near mile 100.2)

30°38'02"N 84°54'14."W 7/20/2011 30.6 139 7.5 6.5

Florida Gadsden 303719084554000 Apalachicola River 

at mile 98

30°36'48"N 84°55'24"W 7/21/2011 29.8 142 7.5 6.1

Florida Gadsden 02358500 North Fork 

Mosquito Creek 

at Chattahoochee

30°42'08"N 84°49'35"W 7/23/2011 29.5 61 7.1 7.5

Florida Gadsden 02358519 Mosquito Creek at 

Chattahoochee

30°41'19"N 84°50'30"W 7/21/2011 26.1 86 7.2 7

Florida Gadsden 02358600 Flat Creek near 

Chattahoochee

30°37'43"N 84°50'06"W 7/21/2011 24.4 42 7.1 7.7
Table 5. Stream and spring water-quality data July 20–24, 2011.—Continued

[ddmmss, degrees, minutes, seconds, N, north; W, west; °C, degrees Celsius; μS/cm, microsiemens per centimeter]

State County Site number Site name

Longitude Latitude Date

measured 

in 2011

Water 

temperature

(°C)

Specific

conductance

(μS/cm)

pH Dissolved

oxygen (ddmmss)

Florida

Florida

Gulf

Gulf

02358754

02359101

Apalachicola River 

near Wewahitchka 

(mile 44.2)

Chipola River above 

Dead Lakes 

outlet near 

Wewahitchka

30°09'16"N

30°07'38"N

85°08'06"W

85°10'39"W

7/22/2011

7/24/2011

31.1

29.7

136

148

7.6

7.2

7.2

5

Florida Jackson 304220084514900 Apalachicola River 

below Jim 

Woodruff Dam

30°42'24"N 84°51'45"W 7/20/2011 29.8 136 7.5 6.8

Florida Jackson 304217084514800 Apalachicola River 

below Jim 

Woodruff Dam

30°42'18"N 84°50'42"W 7/20/2011 29.9 137 7.6 7.2

Florida Jackson 304221084520600 Apalachicola River 

at mile 106

30°42'13"N 84°51'40"W 7/20/2011 30.1 137 7.7 7.3

Florida Jackson 02358000 Apalachicola River 

at Chattahoochee

30°41'36"N 84°51'40"W 7/20/2011 30 140 7.7 7

Florida

Florida

Jackson

Jackson

02358760 Marshall Creek at 

State Hwy. 2 near 

Campbellton

02358772 Cowarts Creek at 

State Highway 2 

near Malone

30°56'11"N

30°56'50"N

85°17'48"W

85°15'32"W

7/23/2011

7/23/2011

25.3

24.1

213

238

7.5

7.5

7

6.9

Florida Jackson 02358784 Muddy Branch 

near Marianna

30°49'58"N 85°12'31"W 7/22.2011 26 78 6.8 2

Florida Jackson 02358789 Chipola River 

at Marianna

30°46'22"N 85°12'59"W 7/20/2011 24.1 256 7.7 7.2

Florida Jackson 02358800 Chipola River 

at Oakdale

30°43'02"N 85°12'01"W 7/24/2011 25.7 258 7.8 6.7

Florida Jackson 304913085144201 Blue Hole Spring

at foot bridge 

near Marianna

30°49'13"N 85°14'42"W 7/20/2011 27.2 186 7.4 4.4

Florida Jackson 304948085140501 Baltzell Spring 30°49'48"N 85°14'05"W 7/20/2011 20.6 306 7.5 7.3

Florida Jackson 02358900 Dry Creek 

near Oakdale

30°40'29"N 85°12'32"W 7/23/2011 23 214 8 8.5

Florida Jackson 02358795 Jackson Blue Spring 

near Marianna

30°47'26"N 85°08'27"W 7/22/2011 20.6 251 7.5 7.2

Florida

Florida

Liberty

Liberty

303501084563100 Rock Creek 

at Torreya

State Park near 

Johnson Landing

303526084582100 Apalachicola River 

at mile 94

30°35'01"N

30°34'52"N

84°56'31"W

84°57'49"W

7/21/2011

7/21/2011

26.9

30.5

62

142

7.3

7.5

8.4

6.2

Florida

Florida

Liberty

Liberty

02358664 Apalachicola River 

near Rock Bluff 

(near mile 92.2)

301719084355900 Apalachicola River 

at mile 86

30°33'44"N

30°28'52"N

84°57'47"W

84°59'59"W

7/21/2011

7/23/2011

30.7

29.7

143

145

7.5

7.4

6.3

5.3

Florida Liberty 02358685 Little Sweetwater 

Creek near Bristol

30°28'23"N 84°59'04"W 7/23/2011 23.9 15 5.5 8.3

Table 5 65
66 Hydrologic Conditions in the Lower ACF and Parts of the ASO River Basins, Ga., Fla., and Ala., July 2011

Table 5. Stream and spring water-quality data July 20–24, 2011.—Continued

[ddmmss, degrees, minutes, seconds, N, north; W, west; °C, degrees Celsius; μS/cm, microsiemens per centimeter]

Water Specific Longitude Latitude Date temper- conduc- Dissolved State County Site number Site name measured pH ature tance oxygen (ddmmss) in 2011 (°C) (μS/cm)

Florida Liberty 302642084595000 Apalachicola River 30°26'25"N 84°59'30"W 7/23/2011 29.8 144 7.4 5.6

at mile 80

Florida Liberty 302442085004100 Apalachicola River 

at mile 75

30°24'25"N 85°00'55"W 7/24/2011 30.5 139 7.4 6.2

Florida Liberty 302200085010100 Apalachicola River 

at mile 72

30°23'00"N 85°01'00"W 7/24/2011 30.6 139 7.4 6.3

Florida Liberty 301935085020000 Apalachicola River 

at mile 64 (at 

Estiffanulga)

30°18'51"N 85°02'00"W 7/24/2011 30.9 139 7.6 7

Florida Liberty 301759085032700 Apalachicola River 

at mile 60

30°17'36"N 85°03'16"W 7/22/2011 30.4 140 7.5 6.9

Florida Liberty 301258085065300 Apalachicola River 

at mile 50

30°12'35"N 85°06'326"W 7/22/2011 31 138 7.6 7.3

Florida Liberty 023587547 Apalachicola River 

at mile 36 at 

Wewahitchka

30°05'19"N 85°08'47"W 7/22/2011 31.6 133 7.6 7.4

Florida Liberty 02358673 Sweetwater Creek 

near Rock Bluff

30°31'29"N 84°58'22"W 7/20/2011 23 26 6.1 7.4

Florida

Florida

Liberty

Liberty

02358742 Little Gully Creek 

near Esiffanulga

02358750 Gregory Mill Creek 

at Orange

30°15'41"N

30°10'25"N

85°00'47"W

85°04'08"W

7/22/2011

7/22/2011

24.2

23.3

56

101

5.6

5.9

2.3

4.9

Florida Liberty

Georgia Baker

02358737 Big Gully Creek 

near Orange

02352980 Cooleewahee Creek 

near Newton

30°14'52"N

31°19'49"N

85°00'18"W

84°19'50"W

7/22/2011

7/22/2011

23.4

27.47

119

273

6.6

8.02

5.7

9.98

Georgia Baker 02353500 Ichawaynochaway 

Creek at 

Milford

31°22'58"N 84°32'47"W 7/22/2011 27.27 79 7.06 6.32

Georgia Baker 02354500 Chickasawhatchee 

Creek at 

Elmodel

31°21'02"N 84°28'57"W 7/22/2011 30.51 248 8.03 8.2

Georgia Baker 02354800 Ichawaynochaway 

Creek near 

Elmodel

31°17'38"N 84°29'31"W 7/22/2011 28.27 82 7.29 6.79

Georgia Baker

Georgia Berrien

Georgia Calhoun

02355350

02316000

02353265

Ichawaynochaway 

Creek below 

Newton

Alapaha River 

near Alapaha

Ichawaynochaway 

Creek at Ga. 37, 

near Morgan

31°13'03"N

31°23'04"N

31°31'37"N

84°28'15"W

83°11'33"W

84°34'58"W

7/23/2011

7/21/2011

7/21/2011

27.78

27.8

27.62

95

109

61

7.39

6.84

6.61

6.61

3.51

5.99

Georgia Calhoun 02353400 Pachitla Creek 

near Edison

31°33'18"N 84°40'51"W 7/21/2011 25.92 52 6.64 6.69

Georgia Calhoun 02353460 Ichawaynochaway 

Creek at Ga. 62, 

near Leary

31°28'10"N 84°34'15"W 7/22/2011 26.5 61 6.72 6.79

Georgia Calhoun 02354350 Chickasawhatchee 

Creek near 

Albany

31°35'38"N 84°27'12"W 7/23/2011 25.96 216 6.95 5.75
Table 5. Stream and spring water-quality data July 20–24, 2011.—Continued

[ddmmss, degrees, minutes, seconds, N, north; W, west; °C, degrees Celsius; μS/cm, microsiemens per centimeter]

State County Site number Site name

Longitude Latitude Date

measured 

in 2011

Water 

temperature

(°C)

Specific

conductance

(μS/cm)

pH Dissolved

oxygen (ddmmss)

Georgia Colquitt 02327195 Ochlockonee River 

at Ga. 133, 

near Moultrie

31°14'50"N 83°50'03"W 7/21/2011 25.9 87 7.26 3.8

Georgia Colquitt 02327205 Ochlockonee River 

Lower Meigs Road, 

near Moultrie

31°08'32"N 83°48'13"W 7/22/2011 26.36 516 7.41 3.69

Georgia Colquitt 02327320 Bridge Creek at 

Funston-Sale City 

Road, near Doerun

31°14'10"N 83°55'51"W 7/21/2011 26.7 133 7.15 4.07

Georgia Crisp

Georgia Crisp

02350220

02350360

Gum Creek at 

U.S. 280, at Coney

Swift Creek 

near Warwick

31°57'41"N

31°50'21"N

83°53'05"W

83°51'18"W

7/21/2011

7/23/2011

25.32

24

149

255

7.13

7.87

6.34

7.8

Georgia Decatur 02357073 Yates Spring 30°55'23"N 84°44'41"W 7/24/2011 20.95 247 7.92 8.63

Georgia Decatur 02357072 Above Yates Spring 30°55'24"N 84°44'41"W 7/24/2011 25.8 232 7.56 5.75

Georgia Decatur 02357065 Spring 3 30°56'02"N 84°44'39"W 7/24/2011 20.79 267 7.57 7.14

Georgia Decatur

Georgia Decatur

02357061

02357060

Spring 5 30°56'07"N

(Godby Spring)

Above Spring 3 and 5 30°56'07"N

84°44'36"W

84°44'35"W

7/24/2011

7/24/2011

21.68

21.8

267

224

7.77

7.75

8.25

7.18

Georgia Decatur 02357070 Above Spring 2 30°55'40"N 84°44'38"W 7/24/2011 25.7 232 7.52 5.92

Georgia Decatur 02329385 Swamp Creek 30°43'11"N

at U.S. 27, 

near Attapulgus

84°24'41"W 7/22/2011 26.51 122 6.63 4.97

Georgia Decatur 02357000 Spring Creek 31°02'25"N

near Iron City

84°44'24"W 7/23/2011 27.92 187 7.76 7.32

Georgia Decatur 02357050 Spring Creek at 30°58'31"N

U.S. 84, at Brinson

84°44'44"W 7/24/2011 26.29 201 7.59 5.88

Georgia Dooly 02349900 Turkey Creek at 

Byromville

32°11'44"N 83°54'08"W 7/22/2011 24.6 133 6.85 5.9

Georgia Dooly

Georgia Dooly

02349910

02349960

Turkey Creek 

County Rd, 

near Drayton

Little Pennahatchee 

Creek near 

Lilly

32°06'14"N

32°07'01"N

83°56'23"W

83°51'44"W

7/23/2011

7/23/2011

25.4

25.8

98

280

7.27

6.93

7.4

1.82

Georgia Dooly 02349980 Pennahatchee Creek 

County Road 

near Drayton

32°05'44"N 83°55'04"W 7/23/2011 26.6 234 7.62 6.1

Georgia Early 02343801 Chattahoochee River 

near Columbia, Ala.

31°15'34"N 85°06'37"W 7/21/2011 29 85 6.9 7.39

Georgia Early

Georgia Early

Georgia Early

Georgia Early

02343940

02344000

02356100

02356290

Sawhatchee Creek at 

Cedar Springs

Chattahoochee River 

at Alaga, Ala.

Spring Creek 

near Arlington

Dry Creek 

near Blakely

31°10'51"N

31°06'55"N

31°24'48"N

31°22'23"N

85°02'37"W

85°02'43"W

84°46'33"W

84°52'59"W

7/22/2011

7/21/2011

7/22/2011

7/22/2011

24.8

29.3

27.1

26.18

200

83

142

130

7.58

6.81

7.65

6.99

7.14

7.24

8.18

6.14

Georgia Early 02356460 Dry Creek at 

Hentown

31°17'03"N 84°49'10"W 7/22/2011 27.05 192 7.18 5.65

Table 5 67
68 Hydrologic Conditions in the Lower ACF and Parts of the ASO River Basins, Ga., Fla., and Ala., July 2011

Table 5. Stream and spring water-quality data July 20–24, 2011.—Continued

[ddmmss, degrees, minutes, seconds, N, north; W, west; °C, degrees Celsius; μS/cm, microsiemens per centimeter]

State County Site number Site name

Longitude Latitude Date

measured 

in 2011

Water 

temperature 

(°C)

Specific

conductance

(μS/cm)

pH Dissolved

oxygen (ddmmss)

Georgia Grady

Georgia Grady

Georgia Grady

Georgia Grady

Georgia Grady

02327860

02328000

02328025

02328082

02328200

Popple Branch 

at Ga. 179,

near Whigham

Tired Creek 

near Cairo

Parkers Mill Creek 

at Pine Park Road, 

near Cairo

Little Tired Creek 

at Pine Park Road, 

near Cairo

Ochlockonee River 

near Calvary

30°55'36"N

30°51'55"N

30°50'18"N

30°50'31"N

30°43'54"N

84°20'18"W

84°15'46"W

84°13'34"W

84°12'03"W

84°14'12"W

7/21/2011

7/21/2011

7/22/2011

7/22/2011

7/22/2011

29.36

27.07

25.54

25.57

31.29

80

182

428

309

229

6.46

7.4

7.36

6.52

7.68

4.37

6.89

5.33

3.23

8.5

Georgia Irwin 02316170 Willacoochee River 

at Ga. 32, 

near Ocilla

31°35'45"N 83°10'18"W 7/22/2011 26.8 326 6.56 3.05

Georgia Lee

Georgia Lee

Georgia Lee

Georgia Lee

Georgia Lee

Georgia Lee

Georgia Lee

Georgia Lee

02350860

02350900

02351000

02351700

02351800

02351890

02351900

02351930

Kinchafoonee Creek 

at Ga. 118, 

near Smithville

Kinchafoonee Creek 

at Pinewood Road, 

near Dawson

Kinchafoonee Creek 

at Ga. 32, 

near Leesburg

Muckalee Creek 

near Smithville

Muckaloochee Creek 

at Smithville

Muckalee Creek 

at Ga. 195, 

near Leesburg

Muckalee Creek 

near Leesburg

Muckalee Creek

below Leesburg

31°52'07"N

31°45'52"N

31°43'11"N

31°53'44"N

31°54'20"N

31°46'34"N

31°43'56"N

31°39'06"N

84°18'18"W

84°15'12"W

84°11'08"W

84°11'52"W

84°14'44"W

84°08'22"W

84°07'30"W

84°06'27"W

7/24/2011

7/22/2011

7/21/2011

7/21/2011

7/24/2011

7/24/2001

7/21/2011

7/23/2011

26.4

28.42

28.38

26.45

25.3

26.48

27.5

28.78

52

52

59

75

42

78

83

90

6.77

6.82

6.95

6.78

6.32

6.99

6.71

7.05

6.79

7.47

7.35

6.62

6.24

6.55

7.02

7.41

Georgia Macon

Georgia Macon

Georgia Macon

02349605

02349660

02349740

Flint River at 

Ga. 26, near 

Montezuma

Sweetwater Creek

at Andersonville

Hogcrawl Creek 

(S-533) near 

Montezuma

32°17'35"N

32°11'10"N

32°13'03"N

84°02'37"W

84°08'03"W

83°59'30"W

7/22/2011

7/22/2011

7/22/2011

29.1

26.1

24.9

36

38

112

6.83

6.55

6.97

7

7.1

7.5

Georgia Marion 02350572 Kinchafoonee Creek 

near Buena Vista

32°15'23"N 84°34'41"W 7/21/2011 24.6 31 6.62 7.3

Georgia Miller 02356640 Spring Creek 

at U.S. 27,

at Colquitt

31°10'16"N 84°44'31"W 7/23/2011 26.43 194 7.16 5.22
Table 5. Stream and spring water-quality data July 20–24, 2011.—Continued

[ddmmss, degrees, minutes, seconds, N, north; W, west; °C, degrees Celsius; μS/cm, microsiemens per centimeter]

State County Site number Site name

Longitude Latitude Date

measured 

in 2011

Water 

temperature

(°C)

Specific

conductance

(μS/cm)

pH Dissolved

oxygen (ddmmss)

Georgia Randolph 02353200 Little Ichawaynochaway Creek 

near Shellman

31°46'46"N 84°36'13"W 7/21/2011 25.49 64 6.72 7.43

Georgia Randolph 02353350 Carter Creek 

near Carnegie

31°38'13"N 84°43'14"W 7/21/2011 25.64 50 6.65 6.76

Georgia Seminole 02344040 Chattahoochee River 

near Steam Mill

30°58'40"N 85°00'19"W 7/22/2011 28.41 106 6.86 6.31

Georgia Seminole 02357310 Fishpond Drain near 

Donalsonville

30°58'45"N 84°52'17"W 7/23/2011 30.1 165 7.36 5.55

Georgia Stewart 02343200 Pataula Creek 

near Lumpkin

31°56'04"N 84°48'13"W 7/23/2011 24.47 113 7.38 7.28

Georgia Sumter 02350080 Lime Creek 

near Cobb

32°02'02"N 83°59'47"W 7/23/2011 26.5 88 7.32 6.5

Georgia Sumter 02351500 Muckalee Creek 

near Americus

32°04'59"N 84°15'29"W 7/24/2011 28.2 58 7.2 6.9

Georgia Sumter 02351780 Muckaloochee Creek 

near Americus

31°58'38"N 84°18'12"W 7/24/2011 23.1 29 6.15 7.52

Georgia Taylor 02349000 Whitewater Cr below 

Rambulette Cr, 

near Butler

32°28'01"N 84°15'58"W 7/21/2011 22.8 13 5.97 8.2

Georgia Terrell 02353100 Ichawaynochaway 

Creek at U.S. 82, 

near Graves

31°46'17"N 84°33'44"W 7/21/2011 25.21 48 6.43 7.4

Georgia Thomas 02327300 Ochlockonee River 

at Bee Line Road, 

near Chastain

31°02'01"N 83°56'07"W 7/23/2011 26.84 834 7.41 4.81

Georgia Thomas 02327350 Ochlockonee River 

Tributary near 

Coolidge

31°01'25"N 83°57'35"W 7/23/2011 26.93 112 5.66 0.47

Georgia Thomas 02327355 Ochlockonee River 

at Ga. 188, near 

Coolidge

31°00'08"N 83°56'21"W 7/23/2011 27.97 789 7.25 4.92

Georgia Thomas 02327460 Little Ochlockonee 

River Ga. 188 near 

Ochlocknee

30°58'37"N 84°01'12"W 7/23/2011 27.66 66 6.57 4.34

Georgia Thomas 02327695 E Branch Barnetts 

Cr Mcmillan Rd, 

near Ochlocknee

30°56'50"N 84°04'18"W 7/24/2011 24.74 487 6.58 3.03

Georgia Turner 02315905 Deep Creek (CR 250) 

near Rebecca

31°43'57"N 83°30'21"W 7/20/2011 25.68 134 7.19 6.45

Georgia Webster 02350600 Kinchafoonee Creek 

at Preston

32°03'09"N 84°32'54"W 7/21/2011 26.4 32 7 7.2

Georgia Worth 02350509 Jones Creek 

near Oakfield

31°45'34"N 83°58'42"W 7/24/2011 28.03 223 7.74 6.91

Georgia Worth 02350524 Abrams Creek 

near Oakfield

31°43'08"N 83°59'19"W 7/24/2011 27.3 180 7.39 5.1

Georgia Worth 02350527 Mill Creek 

near Albany

31°40'05"N 83°59'48"W 7/22/2011 28.98 212 7.8 7.2

Table 5 69
Manuscript approved on August 15, 2012

Edited by Twila Darden Wilson

Illustrations and layout by Caryl J. Wipperfurth

Science Publishing Network, Raleigh PSC

For more information about this publication, contact:

USGS Georgia Water Science Center

3039 Amwiler Road

Atlanta, GA 30360

telephone: 770-903-9100

http://ga.water.usgs.gov/
Gordon and others—Hydrologic Conditions in the Lower ACF and Parts of the ASO River Basins, Ga., Fla., Ala., July 2011—Scientific Investigations Report 2012–5179