caldwell county regional water and wastewater planning study
caldwell county regional water and wastewater planning study caldwell county regional water and wastewater planning study
The proposed GBRA Mid-Basin Project is a viable solution to meet the waterneeds of Caldwell County. The permits for this project have not been issued bypermitting agencies. Although it is a feasible solution, some concerns havedeveloped regarding environmental flows. Preservation of fresh water in streamsto maintain healthy ecosystems has caused some concern. Maintaining base flowsof fresh water are necessary for rivers and streams to remain healthy andbalanced. The TCEQ, Texas Parks & Wildlife and the TWDB are working toestablish environmental flows and these flows will probably need to beestablished before permits will be issued.Other issues that the project must resolve include: Carrizo-Wilcox groundwater availability (if needed for the project) Well spacing according to GCUWCD may require more land leases oracquisitions (if groundwater is needed) Obtaining groundwater leases from landowners if groundwater is a part ofthe project11.1.2 Hays Caldwell Public Utility Agency Supply Project (HCPUA)The HCPUA was initially formed with the Canyon Regional Water Authority,Buda, Kyle, and San Marcos for the purpose of sharing water supplies and cost ofinfrastructure development. The HCPUA was created under Chapter 422 of theLocal Government Code General Law in January 2007. The role of the HCPUAis to provide wholesale water through the participants. The participants, who arepart owners in percentage distribution, could take a role of wholesale waterdistributors.The participants have been working together for approximately five years andinitially had several interested entities. Many who were invited to participatechose not to pursue the project as a water supply strategy.Klotz Associates Project No. 0972.000.000January 201011-4Caldwell County Regional Water and Wastewater Planning StudyFinal Report
The water supply strategies developed by the HCPUA are described in ThePlumbing Plan Report prepared by Lockwood, Andrews, and Newnam, Inc. Theplan outlines the purpose, approach, timeline, and cost of the projects the HCPUAproposes. An evaluation is given of the water supply options in the report andthen makes recommendations on infrastructure improvements and build-outphases.The plan also developed scenarios based on a 50 year projection of water need. Itwas determined in the Plumbing Plan that water demand will surpass supply2018. Some participants have been identified to need water before 2018. The planprojects a minimum water demand of 27,000 ac-ft/ yr in 2060 based oninformation they received from participants. The projected demand with highgrowth estimates from the State Data Center is approximately 142,000 ac-ft/ yr.The project proposes to pump from wells in the southeast corner of CaldwellCounty adjacent to Bastrop, Fayette and Gonzales Counties. Available yield inthis region of the Carrizo is expected to reach 15,000 ac-ft.The HCPUA is a viable project but will not meet all the needs for CaldwellCounty. The project would need to consider additional WUG to meet thedemands of the county. Other issues that the project must resolve include: Carrizo-Wilcox groundwater availability Well spacing according to GCUWCD may require more land lease/acquisitions Obtaining leases from landowners (at the time of this study no leases havebeen obtained)Klotz Associates Project No. 0972.000.000January 201011-5Caldwell County Regional Water and Wastewater Planning StudyFinal Report
- Page 62 and 63: 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 110 and 111: Klotz Associates Project No. 0972.0
- Page 114 and 115: 11.1.3 Lower Guadalupe Water Supply
- 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 126 and 127: Klotz Associates Project No. 0972.0
- 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 134 and 135: Klotz Associates Project No. 0972.0
- 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 144 and 145: Klotz Associates Project No. 0972.0
- 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
The proposed GBRA Mid-Basin Project is a viable solution to meet the <strong>water</strong>needs of Caldwell County. The permits for this project have not been issued bypermitting agencies. Although it is a feasible solution, some concerns havedeveloped regarding environmental flows. Preservation of fresh <strong>water</strong> in streamsto maintain healthy ecosystems has caused some concern. Maintaining base flowsof fresh <strong>water</strong> are necessary for rivers <strong>and</strong> streams to remain healthy <strong>and</strong>balanced. The TCEQ, Texas Parks & Wildlife <strong>and</strong> the TWDB are working toestablish environmental flows <strong>and</strong> these flows will probably need to beestablished before permits will be issued.Other issues that the project must resolve include: Carrizo-Wilcox ground<strong>water</strong> availability (if needed for the project) Well spacing according to GCUWCD may require more l<strong>and</strong> leases oracquisitions (if ground<strong>water</strong> is needed) Obtaining ground<strong>water</strong> leases from l<strong>and</strong>owners if ground<strong>water</strong> is a part ofthe project11.1.2 Hays Caldwell Public Utility Agency Supply Project (HCPUA)The HCPUA was initially formed with the Canyon Regional Water Authority,Buda, Kyle, <strong>and</strong> San Marcos for the purpose of sharing <strong>water</strong> supplies <strong>and</strong> cost ofinfrastructure development. The HCPUA was created under Chapter 422 of theLocal Government Code General Law in January 2007. The role of the HCPUAis to provide wholesale <strong>water</strong> through the participants. The participants, who arepart owners in percentage distribution, could take a role of wholesale <strong>water</strong>distributors.The participants have been working together for approximately five years <strong>and</strong>initially had several interested entities. Many who were invited to participatechose not to pursue the project as a <strong>water</strong> supply strategy.Klotz Associates Project No. 0972.000.000January 201011-4Caldwell County Regional Water <strong>and</strong> Waste<strong>water</strong> Planning StudyFinal Report
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