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Pretreatment and Laboratory Services Division
1020 Sargent Road​, Building #2  
Dallas, Texas 75203
email: dwupretreatment@dallascityhall.com
(214) 670-6749
(214) 243-2645 Fax

Maurice Akech, REM
Senior Program Manager
(214) 670-7692

Joseph Fielding
Assistant Manager, Pretreatment Operations
(214) 243-2354

Marie Slack-Handy
​Pretreatment Section Supervisor
(214) 243-2362

Donald Schuy
Monitoring Section Supervisor 
(214) 243-2373

John Mangham
Liquid Waste Section Supervisor
(214) 243-2351​

Thelma Cager
Special Projects & Outreach Coordinator
(214) 670-9725