Sienna Regional Municipal Utility District
Water Information
Si Environmental, LLC
Website
6420 Reading Rd, Rosenberg, Texas 77471
Phone: (832) 490-1600
Email: customercare@sienv.com
Payment Information
Upcoming Meetings
Thursday, August 28, 2025 at 8:00 AM
The Board meets the fourth Thursday of each month at the offices of The Muller Law Group, PLLC, 202 Century Square Boulevard, Sugar Land, Texas 77478. Meetings generally begin at 8:00 a.m. and are open to the public.
The Board welcomes and encourages District residents to attend.