GILLESPIE

KENDALL

COMALBANDERA

GUADALUPE

BEXAR

MEDINAWILSON

ATASCOSA KARNESFRIO

RED RIVERLAMAR

BOWIEDELTA

TITUS

FRANKLINHOPKINS MORRIS CASS

LEON

ROBERTSON

MADISON

BRAZOS

BURLESON

WASHINGTON

LLANO

LEEBLANCO

BASTROPHAYS

FAYETTECALDWELL

LIVE OAK BEEMCMULLEN REFUGIO

ARANSAS

SAN PATRICIO

JIMWELLSDUVAL

NUECES

KLEBERG

KENEDYBROOKS

HAMILTON

MILLSCORYELL

SAN SABALAMPASAS

BELL

MILAM

GLASSCOCK STERLINGCOKE

TOM GREEN

REAGAN CONCHOIRION

CROCKETTSCHLEICHER MENARD

MASON

SUTTON KIMBLE

SHELBY

NACOGDOCHES

SAN AUGUSTINESABINEHOUSTON

ANGELINA

NEWTON

JASPERPOLK TYLER

SAN JACINTO

CAMP

WOODRAINS

UPSHUR MARION

VAN ZANDT HARRISONGREGG

RUSK

HENDERSONPANOLA

CHEROKEEANDERSON

GONZALESLAVACA

DEWITT

JACKSONVICTORIA

GOLIAD

CALHOUN

WALKER

MONTGOMERY

LIBERTY

WALLER

HARRISAUSTIN

COLORADO

CHAMBERS

FORT BEND

WHARTONBRAZORIA

GALVESTON

MATAGORDA

HILLBOSQUE

FREESTONE

MCLENNAN LIMESTONE

FALLS

HIDALGOWILLACY

CAMERON

VAL VERDE EDWARDS

REAL

KINNEY UVALDE

MAVERICKZAVALA

DIMMITLASALLE

HUNTWISE DENTON COLLIN

ROCKWALL

PARKER DALLASTARRANT

KAUFMAN

ELLISHOOD

JOHNSON

ERATH

NAVARRO

HARDEMAN

WILBARGERCOTTLEFOARD WICHITA

CLAYMONTAGUE

ARCHERBAYLOR

JACKYOUNG

GAINES DAWSON BORDEN

ANDREWS MARTIN HOWARD

WINKLER ECTOR MIDLAND

REEVES

LOVING

WARDCRANE

UPTON

PECOS

TERRELL

DALLAM SHERMAN HANSFORD OCHILTREE LIPSCOMB

HARTLEY MOORE

HUTCHINSON

ROBERTS HEMPHILL

OLDHAMPOTTER CARSON GRAY WHEELER

DEAF SMITH RANDALL ARMSTRONG DONLEY COLLINGSWORTH

PARMER CASTRO SWISHER BRISCOE HALL CHILDRESS

EL PASO

HUDSPETH

CULBERSON

JEFF DAVIS

PRESIDIOBREWSTER

JEFFERSON

HARDIN

ORANGE

BAILEY LAMB HALE FLOYD MOTLEY

COCHRAN HOCKLEYLUBBOCK

CROSBY DICKENS KING

YOAKUM TERRY LYNN GARZA

WEBB

JIM HOGGZAPATA

STARR

GRAYSONCOOKE FANNINKNOX

KENT STONEWALL HASKELL THROCKMORTON

SCURRY FISHER JONES SHACKELFORD STEPHENS

MITCHELL NOLAN TAYLOR CALLAHANEASTLAND

COMANCHE

RUNNELSCOLEMAN BROWN

BURNET

WILLIAMSON

TRAVIS

SMITH

KERR

GRIMES

MCCULLOCHTRINITY

PALO PINTO

SOMERVELL

1

26

73

5

49

13

16

15

14

11

12

8

10

Minor Aquifers of Texaswith

Groundwater Management Areas

- Aquifer chronology by geologic age.- Solid colors indicate OUTCROP areas (portion of a water-bearing rock unit exposed at the land surface).- Hatch colored lines indicate SUBCROP areas (portion of a water-bearing rock unit existing below other rock units).

Groundwater Management Areas were created "in order to provide for the conservation, preservation, protection,recharging, and prevention of waste of the groundwater, and of groundwater reservoirs or their subdivisions, andto control subsidence caused by withdrawal of water from those groundwater reservoirs or their subdivisions,consistent with the objectives of Section 59, Article XVI, Texas Constitution, groundwater management areas maybe created..." (Texas Water Code §35.001) Added by Acts 1995, 74th Leg., ch. 933, §2, eff. Sept. 1, 1995.The responsibility for Groundwater Management Area delineation was delegated to the Texas Water Development Board(Section 35.004, Chapter 35, Title 2, Texas Water Code).The initial Groundwater Management Area delineations wereadopted on December 15, 2002 (356.23, TWDB Rules).

DISCLAIMER: This map was generated by the Texas Water Development Board usingGIS (Geographical Information System) software. No claims are made to the accuracyor completeness of the information shown herein nor to its suitability for a particularuse. The scale and location of all mapped data are approximate. Map date: DEC-2017

°0 50 10025

Miles

TEXAS WATER DEVELOPMENT BOARD1700 North Congress Avenue | P.O. Box 13231

Austin, Texas 78711-3231 www.twdb.texas.gov

512-463-7847

MISSION: The Texas Water Development Board's (TWDB) mission is to provideleadership, planning, financial assistance, information, and educationfor the conservation and responsible development of water for Texas.

Brazos River Alluvium AquiferWest Texas Bolsons AquiferLipan Aquifer (Outcrop)Lipan Aquifer (Subcrop)Yegua Jackson AquiferIgneous AquiferSparta Aquifer (Outcrop)Sparta Aquifer (Subcrop)Queen City Aquifer (Outcrop)Queen City Aquifer (Subcrop)

Nacatoch Aquifer (Outcrop)Nacatoch Aquifer (Subcrop)Blossom Aquifer (Outcrop)Blossom Aquifer (Subcrop)Woodbine Aquifer (Outcrop)Woodbine Aquifer (Subcrop)Rita Blanca AquiferEdwards -Trinity (High Plains) AquiferDockum Aquifer (Outcrop)Dockum Aquifer (Subcrop)Rustler Aquifer (Outcrop)

Rustler Aquifer (Subcrop)Capitan Reef Complex AquiferBlaine Aquifer (outcrop)Blaine Aquifer (Subcrop)Bone Spring - Victorio Peak AquiferMarble Falls AquiferMarathon AquiferEllenburger - San Saba Aquifer (Outcrop)Ellenburger - San Saba Aquifer (Subcrop)Hickory Aquifer (Outcrop)Hickory Aquifer (Subcrop)

Groundwater Management Areas

Cross Timbers