About Us
The Central Texas Stormwater Coalition (CTSC) is comprised of MS4 program managers from the Central Texas cities of San Marcos, and New Braunfels, as well as Texas State University.
This collaborative group was formed with the intent to combine efforts, share experiences, and provide support in an effort to improve each entity's MS4 program and meet program goals for compliance with state and federal regulations.
City of New Braunfels
Phillip Quast is the Watershed Supervisor for the City of New Braunfels and has held this position since 2018. His academic background includes a Master of Applied Geography degree from Texas State University with a focus on Environmental Resource Management and Geographic Information Systems and a Bachelor of Science degree in Computer Science, also from Texas State University. Phillip has worked in the field of land conservation and habitat restoration for 16 years and enjoys working to develop and implement programs that are designed to improve the habitats for wildlife to thrive in.
Henry Beenenga is the Watershed Inspector for the City of New Braunfels where he inspects active construction sites to ensure compliance with City and State regulations. Henry also helps implement other items of the City’s MS4 program and Storm Water Management Program (SWMP). Henry graduated with a degree in Environmental Science and has received his CESSWI and CISEC (#3726). His goals while working with the city include public outreach to further educate citizens on the importance of keeping our riverways clean. Henry spends his free time exploring the Hill Country for hiking trails and swimming opportunities.
City of San Marcos
Alex serves as the Stormwater Coordinator for the City of San Marcos, a role she has held since 2017. In this position, she oversees and manages the city’s Phase II Municipal Separate Storm Sewer System (MS4) permit. A Certified Inspector of Sediment and Erosion Control (CISEC) and a Texas Registered Code Enforcement Officer, Alex brings over 16 years of experience in environmental compliance, with a strong focus on stormwater management and Texas Pollutant Discharge Elimination System (TPDES) permitting. Her expertise includes MS4 program management, construction stormwater inspections, best management practices (BMPs), chemical waste management, Tier II reporting, spill response, Spill Prevention, Control, and Countermeasure (SPCC) planning. Outside of work, Alex enjoys traveling with her husband and spending time with their dog.
Rachel Henderson is a CISEC and holds a Bachelor’s Degree in Resource and Environmental Studies from Texas State University. She currently works for the City of San Marcos as the Stormwater Technician where she assists in managing and implementing the City’s MS4 program. Her specialties include stormwater compliance operations, GIS applications, state and federal environmental regulations including stormwater inspections, best management practices, spill response and Spill Prevention Control and Countermeasure (SPCC) plans.
Allyson Duden is A CISEC and Environmental Inspection Specialist with the City of San Marcos, where she works to protect local water quality through construction stormwater inspections and erosion and sediment control compliance.
Allyson holds a Bachelor of Science in Wildlife Biology and has prior experience in ecological consulting, natural resource management and environmental compliance throughout Central Texas and the Southwestern United States. She is passionate about watershed protection, environmental stewardship, and collaborating with regional partners to advance stormwater education and improve MS4 programs.
Texas State University
Peyton Austin is an Environmental, Health, and Safety Specialist for Texas State University, where he manages MS4 compliance for daily campus activities and active construction projects. A Certified Inspector of Sediment and Erosion Control (CISEC #2973), Peyton has nearly a decade of experience in the storm water field. His background combines practical field experience as an equipment operator for the City of San Marcos with infrastructure design work as an intern for Gallup Engineering. A two-time Texas State University graduate, Peyton holds a Bachelor’s in Water Resources and a Master of Public Administration, combining technical environmental science with public management strategy.
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Leeland Batts is an Environmental Health and Safety Specialist at Texas State University under the Environmental, Health, Safety, Risk, and Emergency Management Department. With experience as an informal scientific educator and environmental interpreter, he supports the university's MS4 public education and outreach programs.