Bee Cave, Texas (KXAN) -- A decision on whether Mirasol Springs, a 1,400-acre development in western Travis County, will get access to water from Lake Travis could soon be finalized. This map shows the proposed service line that would connect Mirasol Springs with the WTCPUA's water source. The line runs through the Peacock Ranch development. (Credit: Eric Henrikson/KXAN) The development has submitted a proposal to the West Travis County Public Utility Agency (WTCPUA) that would lead to the construction of a new water line extension. The three-inch line would be built and paid for by the developers. It would attach to a currently approved water service line extension to build west of Highway 71. Mirasol Springs aims to set the "gold-standard" for developers in the future, with several green initiatives in place meant to protect the environmentally sensitive land it is scheduled to built on. That land, just west of Hamilton Pool and Reimer's Ranch along the Pedernales River, is dotted by several springs. Activists and landowners worry that development in the area could lead to groundwater depletion and that these springs could dry up. Hill Country landowners question proposed water line as county voices support Water service line debate Judge Andy Brown speaks with landowner Lew Adams about the potential impact of Mirasol Springs. (Credit: Frank Martinez/KXAN) In September, the developers filed with the WTCPUA for the proposed water service line. The WTCPUA said they would agree to the line under several conditions, including the surrendering of any groundwater or surface water permits by the developers. The WTCPUA board was scheduled to vote on the plan in October but delayed the vote until Nov. 18 after pushback from landowners and activists. Travis County Commissioner's Court, who initially voiced concerns about the impact of the development on the springs, has since come out in favor of the water line under several restrictions. The size of the water main line extension shall not exceed 3 inches with a maximum flow of 108 gallons per minute. The drilling of any new water wells and upon service from the WTCPLA the non-exemptuse of groundwater is prohibited. Rainwater harvesting and storage for outdoor irrigation is mandatory. The use of the Pedernales River as a potable water supply to the area served by WTCPUA isprohibited. Mirasol will sever its groundwater estate and grant Travis County a groundwater conservation easement. WTCPUA water is limited to indoor use. Ahead of the Mirasol vote in October, representatives with the WTCPUA told KXAN that “the reason we are considering it is to relieve capacity from the Trinity Aquifer and the Pedernales River.” Concerns about development Activists, including the Save Our Springs Alliance, have said they're worried that even with restrictions in place, development could flourish. The group often cites a 2015 study by the Meadows Center at Texas State which found that a water line extension along Highway 290 led to increased groundwater depletion in that area. That study was partially funded by the Save Our Springs Alliance. Doug Wierman, the hydrologist who authored that study, has since come out and said that the situations are not the same. The proposed Mirasol Springs water line is meant strictly for one development, whereas the Highway 290 pipeline was meant to boost development near Dripping Springs. Landowners who live along Hamilton Pool Road have said that the initial water line installed in 2005, which the Mirasol line will attach, has led to increased development. “If you build it, they will come. And they came. The developments came, the traffic came, the lack of water came. And we are now in the same predicament, if you will, going down west of 12,” said Nell Penridge, a homeowner who has lived in the area since 2009.