caldwell county regional water and wastewater planning study

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11.1.3 Lower Guadalupe Water Supply Project for GBRA NeedsThe Lower Guadalupe Water Supply Project (LGWSP) for GBRA was introducedinto the 2006 South Central Texas Regional Water Plan (SCTRWP) to meet watersupply needs for customers in Caldwell, Comal, Guadalupe, Hays, and KendallCounties. The strategy would deliver 36,710 ac-ft/ yr of available water throughunderutilized GBRA and Union Carbide Corporation water rights from theGuadalupe River.The original LGWSP is no longer considered a viable strategy and has beenremoved from the SCTRWP. However, a smaller scale project using the conceptsof the original LGWSP is considered a viable strategy for water supplydevelopment. The smaller project appears to have fewer potential participantsthan the original LGWSP.11.1.4 Lockhart ReservoirThe Lockhart Dam and Reservoir project as described in the 2006 Region LWater Plan would be located upstream from Lockhart on Plum Creek as a meansof meeting projected water needs. The Lockhart Reservoir was recommended tobe included and considered as an important economic development. However, theoriginal Lockhart Reservoir Project is no longer viable because the area where thedam was proposed is being used to mitigate loss of wetlands associated with theconstruction of SH 130. A reconfigured Lockhart Reservoir Project may be viablebut this strategy is not currently being actively pursued.11.1.5 Recycled Water ProgramsThe Recycled Waters Program involves the expansion or development ofprograms that reclaim municipal water for non-potable uses. Recycled water canbe used in to irrigate parks, cemeteries, golf courses, athletic fields, open spaces,Klotz Associates Project No. 0972.000.000January 201011-6Caldwell County Regional Water and Wastewater Planning StudyFinal Report
and landscape watering. The water can also be used to cool building and forindustrial processes.This strategy is a feasible solution with the development of new treatmentfacilities. It may not be cost-effective to retrofit and modify existing systems toprovide this alternative.11.1.6 Surface Water RightsThe Surface Water Rights management strategy refers to the recognition ofexisting water rights available for purchase or lease under agreements from sellersand buyers. Additional diversion points consistent with TCEQ rules andapplicable laws are consistent with the 2006 Regional Water Plan.In Caldwell County run-of-the-river surface water rights are not viable. The waterrights for the San Marcos River have all been appropriated. There are no waterrights available.11.1.7 Local CarrizoThe Local Carrizo management strategy involves the development and expansionof well fields in the Carrizo-Wilcox Aquifer. Local municipal and steam-electricalneeds would be met in Atascosa, Caldwell, Gonzales, Guadalupe, and WilsonCounties. The planned implementation of this strategy as listed in the 2006SCTRWP would provide new supplies totaling approximately 20,279 acft/ yr. Thecost would range from about $114 acft/yr to $443 acft/yr.This strategy is viable and utilized by the HCPUA (Plumbing Plan) and theGBRA Mid-Basin Project. However, groundwater withdrawal permits and ifrequired, export permits, are currently being granted by groundwater districts onalmost a “first come first serve basis” without a limitation on the total permittedvolume. In the future, the process to establish desired future conditions (DFC) and11-7Klotz Associates Project No. 0972.000.000Caldwell County Regional Water and Wastewater Planning StudyJanuary 2010Final Report
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CALDWELL COUNTY REGIONAL WATERAND W
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C O N S U L T I N G E N G I N E E R
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flows without impacting environment
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viable for Caldwell County are wate
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parameters and needs. For purposes
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SECTION 1INTRODUCTION1.1 Background
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A Grant Application for a Regional
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1.4 Participants and SponsorsThe Ca
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SECTION 2CALDWELLL COUNTY CHARACTER
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Construction for segments 5 and 6 o
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Watershed and Peach Creek Watershed
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2.4 Certificates of Convenience and
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Klotz Associates Project No. 0972.0
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GRAPH 2-1Lockhart, Texas Monthly Av
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water quality in the county. Finall
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SECTION 4GROUNDWATER4.1 Groundwater
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efore 1953. Deterioration in water
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loose sand. The sand tends to be fr
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4.3 Groundwater Conservation Distri
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support the efforts of PCCD. The di
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SECTION 5SURFACE WATER5.1 GeneralSu
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GRAPH 5-1Caldwell County Total Surf
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GRAPH 5-2TWDB- Caldwell County Hist
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 112 and 113: The proposed GBRA Mid-Basin Project
Page 116 and 117: the maximum available groundwater f
Page 118 and 119: An ASR is a viable solution. Ground
Page 120 and 121: The water conservation strategy is
Page 122 and 123: SECTION 12REGIONAL WATER PLANNING12
Page 124 and 125: TABLE 12-2Caldwell County Water Sup
Page 128 and 129: 12.3.2 DistributionThe water will b
Page 130 and 131: 12.4 Water System Cost EstimatesVar
Page 132 and 133: 300272GRAPH 13-1Caldwell County OSS
Page 136 and 137: 2. The Martindale Regional Facility
Page 138 and 139: decentralized system providing sewe
Page 140 and 141: Unfortunately, the simplicity of O&
Page 142 and 143: associated costs. Efficient and fun
Page 146 and 147: 14.3 Water Quality Concerns and Sou
Page 148 and 149: wastewater plant return flows. The
Page 150 and 151: 14.6 Recommended Load ReductionsLoa
Page 152 and 153: 14.7.2 Water Quality Development Or
Page 154 and 155: 14.8.3 Vegetative Filter StripsVege
Page 156 and 157: Use constructed wetlands to capture
Page 158 and 159: 14.12 Implementation Recommendation
Page 160 and 161: Type II reclaimed water is defined
Page 162 and 163: Pollutant loading to streams from e
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Future growth in Caldwell County wi
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14.12.4 OSSF Annual Inspection and
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Water Quality Monitoring Program -
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execute strategies. Local, state, a
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the environment. Funding for the pr
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the watershed organizations should
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water or groundwater to meet future
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Mid-Basin Project and associated fa
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APPENDIX B
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APPENDIX B0 / ?% '(0 ;6 ) , 6
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APPENDIX B ) ) ) B C * (
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APPENDIX B &# ! % 44' # (0 5#
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APPENDIX B # %# '(=. )1. )@. )
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State WellNumber6702902670290567029
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APPENDIX EThe tables presented in t
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APPENDIX EWaterUserGroupTABLE 7PROJ
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APPENDIX ERules of the Gonzales Cou
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APPENDIX EAVERAGE QUEEN CITY OR SPA
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Historical Water Use Summary by Cou
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Historical Water Use Summary by Gro
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UseCodePriority DatePriority Month,
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CountyName1 = Anderson 52 = Crane 1
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WRNoWRTypeWRSeqAPPENDIX GTCEQ SURFA
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APPENDIX HWATER CONSERVATION MEASUR
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APPENDIX HWater Rate StructureAn in
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APPENDIX HLeak Detection and Repair
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APPENDIX I• The cities of Kyle, L
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Management MeasureSeptic System Ins
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Outreach ActivityAgricultural Progr
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APPENDIX KWhereas the parties to th
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RESPONSE TO WRITTEN COMMENT BY JOHN
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APPENDIX MCaldwell County Regional
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APPENDIX NTEXAS WATER DEVELOPMENT B
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APPENDIX NKlotz Associates, Inc.Res
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APPENDIX NKlotz Associates Response
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