caldwell county regional water and wastewater planning study

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C O N S U L T I N G E N G I N E E R SLIST OF ABBREVIATIONS CONTINUEDSAWSSCTRWPSBSELECTSSLGCSUDTCEQTMDLTxDOTTSDCTSSTWDBUSUSGSUSDAWWTPWWTFWUDSan Antonio Water SystemSouth Central Texas Regional Water PlanSenate BillSpatially Explicit Load Enrichment Calculation ToolSchertz-Seguin Local Government CorporationSpecial Utility DistrictTexas Commission on Environmental QualityTotal Maximum Daily LoadsTexas Department of TransportationTexas State Data CenterTotal Suspended SolidsTexas Water Development BoardUnited StatesUnited States Geologic SurveyUnited States Department of AgricultureWastewater Treatment PlantWastewater Treatment FacilityWater Utility DistrictUNITS OF MEASUREMENTgpmppmMGDac-ftgpcdmg/lgallons per minuteparts per millionmillion gallons per dayacre – feetgallons per capita per daymilligrams per literKlotz Associates Project No. 0972.000.000January 2010TOC-13Caldwell County Regional Water and Wastewater Planning StudyFinal Report
EXECUTIVE SUMMARYMeeting the challenges of developing, managing, conserving and protectingprecious water resources requires proactive leadership that understands theproblems, identifies the solutions and empowers implementation. Completion of aregional water and wastewater planning study is one of the first steps to meet thechallenges.The study examines population projections, projected water supply needs,existing water resources, proposed water plans, and proposed cost estimates. Thestudy also examines the current availability and viability of the proposed projectsin the 2006 South Central Texas Regional Water Plan (Region L Plan) developedunder guidance from the Texas Water Development Board (TWDB) to meet thewater supply needs of Caldwell County. Potential regional water and wastewaterprojects were identified for consideration to meet the needs of the county.In addition, management strategies are identified that could be considered forimplementation to reduce potential non-point pollution loads into the surfacewater and groundwater resources of Caldwell CountyCaldwell County, located in South Central Texas, is poised to grow at anincreasing rate with a population estimate of 35,843 in 2008 to over 100,000 bythe year 2040. The addition of over 64,000 citizens to Caldwell County will posenew demands on local resources for basic services including potable water forconsumption. In addition, new strategies will be needed to protect the quality ofsurface water and groundwater.These increased demands are occurring at a time when the availability of surfacewater and groundwater to serve new growth is limited. Surface waters in CaldwellCounty have been appropriated and only innovative strategies that scalp floodKlotz Associates Project No. 0972.000.000January 2010ES-1Caldwell County Regional Water and Wastewater Planning StudyFinal Report
Page 1 and 2: CALDWELL COUNTY REGIONAL WATERAND W
Page 4 and 5: 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 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 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 62 and 63: GRAPH 5-2TWDB- Caldwell County Hist
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SECTION 6POPULATION6.1 Population P
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GRAPH 6-1TWDB Population Projection
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GRAPH 6-3Texas State Data Center Po
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TABLE 6-2Planning Study Population
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Klotz Associates Project No. 0972.0
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7.1.2 City of LockhartThe City of L
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Neiderwald. The service area in Cal
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purchase capacity of 6.0 MGD. The a
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Lockhart. The plant is capable of d
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In 1994 GBRA began operating the Ci
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7.3.5 Sweetwater Utility, LLCSweetw
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TABLE 8-1Caldwell County - TWDB His
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Municipal water demand projections
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applicable. A “P” in the Region
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the modified TSDC Scenario 1.0, sho
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GRAPH 8-3Caldwell County Survey Res
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GRAPH 8-4Caldwell County Yearly Wat
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espectively from the information pr
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TABLE 9-6Caldwell County Projected
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10.3 United States Environmental Pr
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10.4.3 Source Water ProtectionSourc
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10.6.1 E.coli PotentialIt is estima
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TABLE 10-4Estimated Loadings from U
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The proposed GBRA Mid-Basin Project
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11.1.3 Lower Guadalupe Water Supply
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the maximum available groundwater f
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An ASR is a viable solution. Ground
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The water conservation strategy is
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SECTION 12REGIONAL WATER PLANNING12
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TABLE 12-2Caldwell County Water Sup
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12.3.2 DistributionThe water will b
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12.4 Water System Cost EstimatesVar
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300272GRAPH 13-1Caldwell County OSS
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2. The Martindale Regional Facility
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decentralized system providing sewe
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Unfortunately, the simplicity of O&
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associated costs. Efficient and fun
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14.3 Water Quality Concerns and Sou
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wastewater plant return flows. The
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14.6 Recommended Load ReductionsLoa
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14.7.2 Water Quality Development Or
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14.8.3 Vegetative Filter StripsVege
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Use constructed wetlands to capture
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14.12 Implementation Recommendation
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Type II reclaimed water is defined
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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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C O N S U L T I N G E N G I N E E R
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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
Page 286:
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