SPRING BRANCH, TEXAS — A coalition of property owners, community advocates, and scientists opposes a wastewater treatment plant permit renewal for the Juniper Ranch subdivision. The Juniper Ranch subdivision plans to discharge treated wastewater, known as effluent, down a creek bed. Juniper Ranch is a subdivision under construction by Lennar Homes located across the street from the Mystic Shores subdivision.

Residents state the creek bed targeted for wastewater discharge has been dry for decades. Two Mystic Shores property owners, Terry Shake and Steve Wright, report drainage issues, stormwater pooling, foundation risks, and algae growth on their land. Terry Shake and Steve Wright attribute reported land issues to vegetation removal for the new development.

Properties in the Mystic Shores subdivision are situated on multi-acre lots. The Juniper Ranch subdivision is planned to have multiple homes per acre.

"Canyon Lake has an extensive groundwater system that serves over 8,000 private wells," Ron Harris said. Harris is a retired geophysical engineer. "As a geophysicist, I am concerned that the cumulative impact of these discharges poses a growing risk to both surface water quality and groundwater quality." Harris added that the cumulative impact poses a growing risk. He strongly recommended changing course now.

Canyon Lake is located in the Edwards Aquifer Contributing Zone, directly above the Cow Creek formation in Devil’s Hollow. Advocates state the hydrological system beneath Canyon Lake feeds more than 8,000 private groundwater wells in Comal County. Four wastewater treatment plants are currently permitted to discharge treated effluent into the hydrological system connected to Canyon Lake.

Marty Rolleg is a retired petroleum engineer and archaeology volunteer. He states the proposed discharge path runs through a registered Texas archaeological site.

"Pumping 300,000 gallons of treated effluent wastewater into the fragile environment of Devil’s Hollow Creek and across this registered archaeological site every day will utterly destroy an ancient record that has survived since the Middle Archaic Period 8,000 years ago," Rolleg said. He said that once it washed into Devil’s Hollow Creek, that history would be gone forever. Residents oppose a halt to development in the area but advocate for alternative wastewater management solutions. A no-discharge wastewater ban has been in place at the Highland Lakes near Austin for approximately 40 years.

Organizers propose routing 100% of treated effluent to irrigate lawns, landscaping, or supply a future fire station. Organizers propose selling treated wastewater as a commercial resource to golf courses or industrial users. "Responsible planning to reuse millions of gallons of treated effluent would become millions of gallons of high-quality raw water conserved for the people," said Denae N. Delaney, an organizer. She added that later is too late.

The opposition involves environmental, archaeological, and property rights concerns. The dispute centers on the permit renewal for a wastewater treatment plant serving a new residential development. The proposed discharge method involves releasing treated effluent into a creek bed that residents say has been dry for decades. This action would affect the hydrological system connected to Canyon Lake, which supports thousands of private wells in Comal County.

The coalition argues that existing regulations allow individual homeowners to keep effluent on their property while permitting developers to discharge it onto neighboring land. The group seeks alternative management solutions, including irrigation reuse and commercial sales, rather than a halt to construction. The case shows ongoing tensions between suburban expansion and groundwater protection in Texas.