caldwell county regional water and wastewater planning study
caldwell county regional water and wastewater planning study caldwell county regional water and wastewater planning study
GRAPH 5-2TWDB- Caldwell County Historic Water Use Summary by River Drainage Basin9,0008,000Colorado River BasinGuadalupe River Basin7,0006,000Year5,0004,0003,0002,0001,0000197419801984198519861987198819891990199119921993Acre Feet19941995199619971998199920002001200220032004county has yielded an average of 350 ac-ft annually. The Colorado River Basin ismanaged by the Lower Colorado River Authority (LCRA).5.3 Surface Water Supply UsesMunicipal use is the county’s major use of surface water. Based on historical datafrom 1990 to 2004, municipal water use has accounted for between 65% and 80%of the total water used in the county. Graph 5-3 illustrates historical percentagesof surface water use for typical categories. Although irrigation and livestock wateruse have decreased, they still account for about 20%. Mining, steam electric andmanufacturing account for less than 0.5% of the water used in the County.5.4 Surface Water RightsCurrently, surface water is accessed and obtained through a water rightspermitting process prescribed by the TCEQ. Anyone desiring to use surface water5-5Klotz Associates Project No. 0972.000.000Caldwell County Regional Water and Wastewater Planning StudyJanuary 2010Final Report
needs a permit from the State of Texas. Exemptions from this requirement areavailable for (1) domestic and livestock use, (2) wildlife management, (3)emergency use, and (4) other specified uses listed in the Texas Water Code.Through these appropriated rights users are allowed to divert and store water foruse. However, a priority date is assigned to each right granted. The priority datedetermines the order of water to be used. It is a pecking order for water use. Indrought conditions and when stream flows are lowered and reduced, the TCEQadministers water rights on a priority basis known as “first in time, first in right.”A list of water rights for Caldwell County can be found in Appendix G. This datawas obtained from a TCEQ water rights database. Most of the water rights listedfor Caldwell County are associated with the San Marcos River. The largestpermitted volumes are owned by GBRA and Hydraco Power, Inc.Klotz Associates Project No. 0972.000.000January 20105-6Caldwell County Regional Water and Wastewater Planning StudyFinal Report
- Page 12 and 13: C O N S U L T I N G E N G I N E E R
- Page 14 and 15: C O N S U L T I N G E N G I N E E R
- Page 16 and 17: flows without impacting environment
- Page 18 and 19: viable for Caldwell County are wate
- Page 20 and 21: parameters and needs. For purposes
- Page 22 and 23: SECTION 1INTRODUCTION1.1 Background
- Page 24 and 25: A Grant Application for a Regional
- Page 26 and 27: 1.4 Participants and SponsorsThe Ca
- Page 28 and 29: SECTION 2CALDWELLL COUNTY CHARACTER
- Page 30 and 31: Construction for segments 5 and 6 o
- Page 32 and 33: Watershed and Peach Creek Watershed
- Page 34 and 35: 2.4 Certificates of Convenience and
- Page 36 and 37: Klotz Associates Project No. 0972.0
- Page 38 and 39: GRAPH 2-1Lockhart, Texas Monthly Av
- Page 40 and 41: Klotz Associates Project No. 0972.0
- Page 42 and 43: Klotz Associates Project No. 0972.0
- Page 44 and 45: water quality in the county. Finall
- Page 46 and 47: SECTION 4GROUNDWATER4.1 Groundwater
- Page 48 and 49: efore 1953. Deterioration in water
- Page 50 and 51: loose sand. The sand tends to be fr
- Page 52 and 53: 4.3 Groundwater Conservation Distri
- Page 54 and 55: Klotz Associates Project No. 0972.0
- Page 56 and 57: support the efforts of PCCD. The di
- Page 58 and 59: SECTION 5SURFACE WATER5.1 GeneralSu
- Page 60 and 61: GRAPH 5-1Caldwell County Total Surf
- Page 64 and 65: SECTION 6POPULATION6.1 Population P
- Page 66 and 67: GRAPH 6-1TWDB Population Projection
- Page 68 and 69: GRAPH 6-3Texas State Data Center Po
- Page 70 and 71: TABLE 6-2Planning Study Population
- Page 72 and 73: Klotz Associates Project No. 0972.0
- Page 74 and 75: 7.1.2 City of LockhartThe City of L
- Page 76 and 77: Neiderwald. The service area in Cal
- Page 78 and 79: purchase capacity of 6.0 MGD. The a
- Page 80 and 81: Lockhart. The plant is capable of d
- Page 82 and 83: In 1994 GBRA began operating the Ci
- Page 84 and 85: 7.3.5 Sweetwater Utility, LLCSweetw
- Page 86 and 87: TABLE 8-1Caldwell County - TWDB His
- Page 88 and 89: Municipal water demand projections
- Page 90 and 91: applicable. A “P” in the Region
- Page 92 and 93: the modified TSDC Scenario 1.0, sho
- Page 94 and 95: GRAPH 8-3Caldwell County Survey Res
- Page 96 and 97: GRAPH 8-4Caldwell County Yearly Wat
- Page 98 and 99: espectively from the information pr
- Page 100 and 101: TABLE 9-6Caldwell County Projected
- Page 102 and 103: 10.3 United States Environmental Pr
- Page 104 and 105: 10.4.3 Source Water ProtectionSourc
- Page 106 and 107: 10.6.1 E.coli PotentialIt is estima
- Page 108 and 109: TABLE 10-4Estimated Loadings from U
- Page 110 and 111: Klotz Associates Project No. 0972.0
GRAPH 5-2TWDB- Caldwell County Historic Water Use Summary by River Drainage Basin9,0008,000Colorado River BasinGuadalupe River Basin7,0006,000Year5,0004,0003,0002,0001,0000197419801984198519861987198819891990199119921993Acre Feet19941995199619971998199920002001200220032004<strong>county</strong> has yielded an average of 350 ac-ft annually. The Colorado River Basin ismanaged by the Lower Colorado River Authority (LCRA).5.3 Surface Water Supply UsesMunicipal use is the <strong>county</strong>’s major use of surface <strong>water</strong>. Based on historical datafrom 1990 to 2004, municipal <strong>water</strong> use has accounted for between 65% <strong>and</strong> 80%of the total <strong>water</strong> used in the <strong>county</strong>. Graph 5-3 illustrates historical percentagesof surface <strong>water</strong> use for typical categories. Although irrigation <strong>and</strong> livestock <strong>water</strong>use have decreased, they still account for about 20%. Mining, steam electric <strong>and</strong>manufacturing account for less than 0.5% of the <strong>water</strong> used in the County.5.4 Surface Water RightsCurrently, surface <strong>water</strong> is accessed <strong>and</strong> obtained through a <strong>water</strong> rightspermitting process prescribed by the TCEQ. Anyone desiring to use surface <strong>water</strong>5-5Klotz Associates Project No. 0972.000.000Caldwell County Regional Water <strong>and</strong> Waste<strong>water</strong> Planning StudyJanuary 2010Final Report
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