Environmental CommissionSept. 21, 2022

20220921-003: Manor ISD Staff Variance Presentation — original pdf

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MANOR ISD ELEMENTARY SCHOOL #10 10400 WILDHORSE RANCH TRL SP-2022-0095CX Tunde Daramola Environmental Review Specialist Senior Development Services Department 1  Synopsis and Site requirements OUTLINE  Property Data  Existing Conditions  Variance Request  Grading Exhibit  Variance Exhibits  Variance Recommendation and Conditions 2 PROPERTY DATA  Gilleland Creek Watershed  Suburban Watershed Classification  Desired Development Zone  Not located over the Edwards aquifer recharge zone 3 SYNOPSIS  11.05-acre site within the Wildhorse Planned Unit Development, proposing the construction of a public elementary school with driveways, water wastewater and drainage improvements.  Elevation ranges from 605’ in the west to 556’ in the southeast corner. The natural sloping nature has necessitated the amount of fill for this project.  Limited design flexibility since project is subject to TEA, COA and ADA requirements 4 5 EXISTING CONDITIONS Ground vegetation is typical grasses, prairie, 6 VARIANCE REQUEST  To allow fill in excess of 4 feet and up to 33 feet within the Desired Development Zone. (LDC 25-8-342) 7 Grading Exhibit  Necessitated because of the sloping nature of the site, previous use as spoils area for subdivision development and other requirements (TEA, COA and ADA requirements) 8 VARIANCE RECOMMENDATION & CONDITIONS Staff recommends the variance, having determined that the required findings of fact have been met. Staff also recommends and supports the following conditions in accordance to approved variance exhibits: • Provide structural containment of fill with a terraced retaining wall where • applicable. Increase tree inches on site by adding 20 native trees over the required number of trees. • Provide pollinator plants along with educational signage for the kids. • Use rainwater harvesting on site. 9 V A R I A N C E E X H I B I T S 10 11 THANK YOU REFERENCES GOOGLE EARTH VARIANCE PACKET GIS PROPERTY PROFILE 13