20240904-004: Dominium Sage Fill Staff Presentation — original pdf

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DOMINIUM SAGE AT FRANKLIN PARK 4605 S PLEASANT VALLEY RD SP-2023-0389C.SH David Michael Environmental Review Specialist Senior Development Services Department PROPERTY DATA • Williamson Creek Watershed • Suburban Watershed Classification, Desired Development Zone • Austin Full Purpose • Council District 2 • Not located over Edwards Aquifer Recharge Zone LOCATION Site Location Austin ETJ Austin City Limits Edwards Aquifer Recharge Zone Edwards Aquifer Contributing Zone LOCATION 4605 S Pleasant Valley Rd LOCATION View from S. Pleasant Valley Road View from interior of the site LOCATION 2 ft elevation contour lines Critical Water Quality Zones VARIANCE REQUEST Request to vary LDC 25-8-342 to allow fill up to 15 feet. GRADING VARIANCE FINDINGS IN SUMMARY • Variances for grading have been granted for similar projects. • Grading is a design decision, but the project provides greater environmental protection with increased landscaping. • The project does not create a significant probability of harmful environmental consequences. • The variance will result in water quality that is at least equal to the water quality achievable without the variance. FINDINGS OF FACT PER LDC 25-8-41 • City Staff determined the Findings of Fact have been met per LDC 25-8- 41 for the requested variances • Consequently, City Staff recommended approval of the variances to the Environmental Commission (9/04/2024 Environmental Commission meeting) with variance conditions STAFF DETERMINATION AND CONDITIONS Staff recommends this variance, having determined the findings of fact have been met. Variance Conditions: Enhanced wetland mitigation by providing rain gardens • • Pollinator garden(s) (3 at 1000 SF each or equivalent) located on site accessible to residents with educational signage to each 25 Additional landscape trees, 2-inch min diameter from ECM Appendix F species • • Hand removal and herbicide stump treatment of non-native invasive woody species within CEF buffer and outer half CWQZ along northern property boundary using Spec 614S • Hand seed areas of poor ground cover after invasive removal with 1:1 mix of Spec 609S Table 4 and 5 at specified rate and raked in by hand • Provide educational signage along the creek for wetlands and invasives every 500-feet • No mow signs along the CWQZ every 500-feet APPLICANT PRESENTATION