| Abraham, Biji | Billing Coordinator | 972-237-8490 | babraham@gptx.org | 
| Acevedo, Gineida | Environmental Quality Supervisor-Drinking Water Programs | 972-237-7564 | gacevedo@gptx.org | 
| Alvarado, Leslie | Office Assistant PT | 972-237-8435 | lesliealvarado@gptx.org | 
| Babina, Jeffrey | Senior Public Health Specialist | 972-237-8037 | jbabina@gptx.org | 
| Babina, Kyle | Environmental Quality Technician | 972-237-8429 | kbabina@gptx.org | 
| Bui, Brittney | Public Health Supervisor- Plans Examiner | 972-237-8060 | bbui@gptx.org | 
| Burrow, Karen | Office Coordinator PT | 972-237-8289 | kburrow@gptx.org | 
| Cason, Jody | Environmental Quality Manager | 972-237-8070 | jcason@gptx.org | 
| Carroll, Kenneal | Executive Assistant | 972-237-8068 | kcarroll@gptx.org | 
| Cobbs, Tyler | Environmental Quality Specialist | 972-237-8452 | tcobbs@gptx.org | 
| George, David | Senior Environmental Technician | 972-237-8445 | dgeorge@gptx.org | 
| Conley, Katelyn | Environmental Quality Technician | 972-237-8024 | kconley@gptx.org | 
| Heflin, Jason | Senior Environmental Specialist-Stormwater | 972-237-8224 | jheflin@gptx.org | 
| Johnson, Tamilia | Administrative Supervisor | 972-237-8021 | tsjohnson@gptx.org | 
| Madrid, Kassandra | Environmental Quality Supervisor | 972-237-7509 | kmadrid@gptx.org | 
| McCowen, Mary | Public Health Supervisor- Public Health | 972-237-8238 | mmccowen@gptx.org | 
| Mendez, Cindy | Public Health and Environmental Quality Director | 972-237-8225 | cmendez@gptx.org | 
| Morales, Maria | Executive Assistant | 972-237-8264 | memorales@gptx.org | 
| Ramirez, Perla | Public Health Specialist | 972-237-8068 | pramirez1@gptx.org | 
| Phillips, Greg | Environmental Inspector | 972-237-8452 | gphillips@gptx.org | 
| Richardson, Cher | Public Health Specialist | 972-237-8373 | crichardson@gptx.org | 
| Rodriguez, Werner | Public Health Manager | 972-237-8056 | wrodriguez@gptx.org | 
| Sarinana, Rubi | Executive Assistant | 972-237-8867 | rsarinana@gptx.org | 
| Shull, Patricia | Public Health Nurse PT | 972-237-8509 | pshull@gptx.org | 
| Skaggs, Jackie | Plans Examiner | 972-237-2012 | jskaggs@gptx.org | 
| Straw, Eric | Environmental Quality Supervisor- Wastewater Programs | 972-237-8277 | estraw@gptx.org | 
| White, Terri | Plans Examiner PT | 972-237-8336 | tdwhite@gptx.org | 
| Wieden, Kylie | Environmental Outreach Coordinator | 972-237-8229 | kcwieden@gptx.org | 
| Wilson, Christopher | Environmental Quality Supervisor-Stormwater | 972-237-8059 | cwilson@gptx.org | 
| Ye, Roland | Environmental Specialist | 972-237-8351 | rye@gptx.org |