Motor Vehicles on Levee

The Sienna Plantation Levee Improvement District would like to remind residents that driving motorized vehicles on the levee and trail system is strictly prohibited. The levees and trails are clearly marked with posted signage indicating that motor vehicles are not permitted at these locations. In addition to being illegal, driving on the levee poses risk of injury to both vehicle operators and those persons who are walking/biking on the trail system.

In order to maintain the integrity of the Levee System, it is critical that only authorized vehicles access the levee facilities. SPLID Board of Directors, local Developers and Residents have contacted the Fort Bend County Sheriff’s Office regarding increased motor vehicle activity and have requested immediate assistance regarding trespassing. The Fort Bend County Sheriff’s Office will begin patrols that will include issuing citations to violators.

Pursuant to section 49.217 of the Texas Water Code, the use of motorized vehicles on District drainage facilities is prohibited and classified as a Class C misdemeanor for first time offenders and a Class B misdemeanor for repeat offenders. Trespassers will be issued citations if they are found in violation of Section 49.217 of the Texas Water Code. Please note that the safety of our community is directly related to the proper operation and care of our levees, pump stations, and detention areas.

Thank you for your support in maintaining the integrity of our flood control system. If you observe violations of non authorized vehicles on our levees and trails, please contact the Fort Bend County Sheriff Office’s non-emergency number: 281-342-6116.

Drinking Water in Sienna Plantation Safe to Drink

The below is distributed on behalf of SiEnvironmental, the operator of the Sienna water distribution system:

Since 2012, Missouri City has been supplying the majority of the water to Sienna Plantation through their Surface Water Treatment Plant (SWTP) which Sienna supplements with ground water wells during the peak demand in the summer. The Missouri City SWTP is currently out of service for a few weeks for repairs and for expansion of the system’s capacity. During this time, Sienna Plantation is operating on Ground Water Wells as the sole source of water, as was the case from 1997 to 2012.

The drinking water disinfection system or components has not changed in the past 8 years since the surface water plant was completed and started delivering water. The disinfection levels and residuals are checked every day at each water plant and at various locations throughout Sienna Plantation to insure the safety of the water.

A Texas Commission on Environmental Quality representative was onsite February 10th and confirmed the residuals were well within the suggested range for drinking water disinfection. The drinking water in Sienna Plantation continues to be and always has been safe to drink.

MCTX RSWTP Closed for Phase II Expansion Construction; During Shutdown, MUD-Operated Wells Are Being Utilized

CONTACT: Stacie Walker — 281.403.8530

As part of the Phase II expansion of the Missouri City Regional Surface Water Treatment Plant (RSWTP), service from the facility has been temporarily halted and, in the interim, water is being supplied by area municipal utility districts (MUDs) from ground water wells.

Due to the change in the source, the City has received a number of inquiries from residents and the media about the difference in the water. As a result, staff has compiled a list of frequently asked questions and responses on the issue:

When was the RSWTP temporarily shut down?
Tuesday, Jan. 28.

When is the plant expected to be back online?
By Friday, Feb. 14.

Why was the plant shut down?
According to City officials, the RSWTP is currently being expanded from its 10 million gallons a day (MGD) capacity, to 20 MGD. During this construction, the current 10 MGD plant needs to be shutdown intermittently to facilitate construction and integration with the expanded plant units.

What communities are affected by the shutdown?
The areas affected are: all of Sienna, the portions of Riverstone in Missouri City’s ETJ and inside Missouri City limits, and Colony Lakes Subdivision.

Does this issue impact businesses and schools?
Yes, those that are located in the areas specified above.

How are these areas receiving water now?
During this temporary shutdown, existing ground water wells (operated and managed by the Municipal Utility Districts) are being used to augment potable water supplies in the affected areas.

Is the water safe?
According to the MUD operators, the “treated ground/well water” meets or exceeds regulatory standards for potable water and is safe for consumption.

Will there be any taste/odor/color differences?
In general, when there is a change in water supply source from “treated surface water” to “treated ground/well water,” consumers may notice a subtle difference in the taste/odor/color of the water.

Were impacted consumers notified?
No, according to City officials, as there was no interruption in water supply.

For updates, please watch the City website:, like us on Facebook—fb/MissouriCityTX, follow us on Twitter, Instagram, Snapchat—@MissouriCityTX and Nextdoor, watch Missouri City Television (Ch. 16 on Comcast and Ch. 99 on AT&T U-verse) or download the MCTX Mobile app (available for free in Google Play and the Apple app store).