Missouri City Planning and Zoning Commission voted Thursday to forward to city council a staff-recommended amendment to Specific Use Permit No. 143 that would extend the permit period, correct the site's acreage and update operating and truck-route details for a sand-and-mineral extraction operation at Brazos River Park.

The motion to approve the staff report and forward it with a positive recommendation carried after a public hearing in which no members of the public signed up to speak. The staff report corrected a typographical error in the materials, noting the site is 836 acres (the staff report had previously referenced 846 acres), and recommended a set of contingencies to limit impacts from the quarry operation.

The staff report said the SUP (currently ordinance No. O-11-01, SUP No. 143) would not change the property’s base zoning of SD, Suburban District, but would amend SUP operating details. Among the staff conditions the commission approved to forward were: annual proof of Texas Commission on Environmental Quality (TCEQ) aggregate production compliance and registration; an updated site plan reflecting the roughly 52 acres authorized for disturbance under the TCEQ registration; revised truck routes as described in the staff report; solicitation of input from the Riverstone Property Owners Association and the City of Sugar Land about the proposed routes; approval of a maximum of 300 daily truck trips (an increase from the 250 currently allowed by the SUP); a development schedule for operations (the applicant requested a 10‑year extension); and a restoration plan for the site after operations cease.

Alvin San Miguel of Johnson Development, speaking for the landowner, told commissioners the operations manager indicated typical daily hours begin around 7 a.m. and run until roughly 4:30–5 p.m. He said about 70% of loads serve Sienna-area development and that market conditions sometimes push truck counts above the existing 250 limit, which is why the applicant requested up to 300. San Miguel also said company representatives expect site activity to decline as Sienna lot development finishes around 2030 and that the extended end date requested would avoid repeated permit amendments.

Staff noted the site is within the Brazos River subwatershed (the steep bank creek watershed) and that federal and state oversight agencies relevant to the site include the U.S. Environmental Protection Agency, the Brazos River Authority and the Texas Commission on Environmental Quality. The staff presenter told commissioners that the property currently has a TCEQ registration authorizing disturbance of about 52 acres and that the SUP amendment must include documentation of that registration if requested by the city.

The staff presentation also described proposed truck-route changes. The amendment seeks to remove a prior route that used Oilfield Road and instead add routes that use Thompson Ferry Road to Sienna Springs, Sienna Ranch Road and connections to Fort Bend Toll Road to reach Highway 6 or Sienna Parkway; staff recommended removing a suggested northern routing on Sienna Ranch Road and limiting access to the Fort Bend Toll Road connection. The Riverstone Property Owners Association provided a letter to staff reporting it had received no complaints about truck traffic from the site to date; staff and the applicant said residents should first direct complaints to the association, which could then relay issues to the city and the operator (DeWalt Sand, identified by staff as the quarry operator).

Because the commission’s action was to forward the staff recommendation to city council with a positive recommendation, the SUP amendment will next be considered by city council. The public hearing on the SUP was opened and closed with no public commenters.

Votes and next steps: the commission voted to forward the SUP amendment to city council with the staff contingencies described above. City council will receive the staff report and the commission’s recommendation as part of its review.