Rockwall County, developer discuss apportionment for River Rock Trails phases 1A and 1B

Rockwall County officials and representatives for the River Rock Trails development met in a Jan. 25 workshop to review the county's apportionment calculations for phases 1A and 1B and to identify outstanding questions about how future apportionments will be calculated.

Jeff Miles, a representative of Doctor Horton Homes, opened by reading language from Texas law and requesting clarification of how the county had applied it to the project. Miles quoted Section 232.110 and said the statute requires that "the developer's portion of the cost may not exceed the amount required for infrastructure improvements that are roughly proportionate to the proposed development." He said the developer received the county's Dec. 13 letter and that the county had resolved only three of the 16 listed infrastructure categories — roads, police and schools — in that response.

Nut graf: The parties agreed on the roadway apportionment after review by licensed engineers but left several policy and timing issues unresolved. The county's roadway engineer, Friesen Nichols, calculated the developer's share at $338,867 for two lanes of frontage along FM 548, based on 2,411 linear feet of frontage and a standard 20% county cost share for a state road. The developer's engineers reviewed and did not object to that calculation, but both sides asked for a clear, consistent methodology for future phases.

County staff and the developer discussed four principal topics in depth: road apportionment methodology, law-enforcement costs (capital versus ongoing), school impacts and utility/public-service assurances.

Roads: Friesen Nichols' stamped analysis — attached to the county's response — determined the road share described above. Miles said his engineers "take no exception" to Friesen Nichols' calculation of the $338,867 obligation. Judge Anew told the group he would attempt to obtain a definitive answer on whether the county will use the same apportionment methodology for later phases.

Law enforcement: The county provided a line-item projection that separates one-time capital costs for deputies (vehicles, radios, cameras and equipment) from ongoing personnel costs (salaries, benefits and recurring training). The developer signaled willingness to discuss paying capital costs tied specifically to the development's incremental impact, but objected to covering continuing deputy salaries that the developer said are typically funded through property taxes.

Jeff Miles summarized the county's one-time equipment total as roughly $114,000 to $118,000 and said the developer would be open to negotiating upfront capital contributions "on an as-needed basis" but not to cover ongoing salary costs that, he said, are borne by taxpayers through the regular tax levy. County officials responded that they want a schedule tying hiring of deputies to a projected critical mass of houses so the county can assess the point at which tax revenue would cover salaries. David Booth, also representing Doctor Horton, noted that the county's projection uses a deputies-per-1,000-residents formula and said the developer needs to update timeline assumptions.

Schools: The developer questioned whether school infrastructure falls within the county's legal definition of "county infrastructure." The development is predominantly in Royce City Independent School District (ISD) with a small portion in Rockwall ISD; Miles said roughly 100–200 acres of the roughly 1,800-acre project lie in Rockwall ISD. The developer said it typically reserves and donates elementary and middle school sites to districts and is awaiting Royce City ISD feedback on site needs. County commissioners emphasized that the project will create significant new student population and urged the developer to consider impacts beyond the two neighborhood elementary sites the developer currently shows on preliminary plans.

Both sides acknowledged state law limits on municipal and county impact fees for schools and said any change would require legislative action. The developer said it does not agree the county may assess for school infrastructure but that it is prepared to continue discussions with school districts.

Utilities and services: Miles described water arrangements with Blackland Water Supply Corporation (the project's retail water provider) and the North Texas Municipal Water District (regional supplier). Miles said Blackland has contracted to purchase water from North Texas and the developer has secured nearly 80 easements to build a roughly 6-mile pipeline and pump station to serve the area. On wastewater, the developer said it has engaged an engineering firm to design an on-site treatment plant with TCEQ classification of Type 1 effluent suitable for irrigation of common areas. Miles said the developer will build a fire station site for McClendon-Chisholm, which has an existing contract for fire and EMS service; the developer said McClendon-Chisholm recently requested further discussion but the signed contract remains in place.

Open space and streets: The group confirmed the county commissioner's court previously approved an Open Space Alliance plan; the developer said it will review the approved document and asked the county to send a copy. The developers and county staff discussed private streets being owned and maintained by utility districts and asked the developer to provide projected O&M and reserve estimates for long-term maintenance funding.

Next steps and directions: The court and developer identified several follow-ups: the county will clarify whether roadway apportionment methodology will be applied consistently to future phases; the developer will provide an updated timeline to refine law-enforcement staffing projections; county staff or Blackland will provide a letter from North Texas Municipal Water District confirming regional supply contingent on completed infrastructure; the county will supply the Open Space Alliance approval document; and both parties will continue discussions with Royce City ISD and with the sheriff's office to sequence capital and staffing needs.

Ending: The meeting was a workshop-style session rather than a formal vote; no final apportionment approvals were taken for items beyond the roadway figure the participants accepted pending further clarification. The developer said it will resubmit preliminary plats once it has coordinated outstanding engineering and apportionment work with county staff and consultants.