20220406-003a: 7715 1/2 W. SH 71, C14-85-288.23(RCA) Staff Presentation — original pdf

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7715 ½ W. SH 71 C 1 4- 8 5- 2 8 8 . 2 3 ( R C A ) R e s t r i c t i v e C o v e n a n t A m e n d m e n t L i z J o h n s t o n , D e p u t y E n v i r o n m e n t a l O f f i c e r E n v i r o n m e n t a l C o m m i s s i o n S t a f f P r e s e n t a t i o n A p r i l 6 , 2 0 2 2 C I T Y O F A U S T I N W A T E R S H E D P R O T E C T I O N D E P A R T M E N T Restrictive Covenant Amendments • • Re s t r i c t i ve C o ve n a n t s ( RC s ) a r e l e g a l d o c u m e n t s t h a t c a n s e t f o r t h r e s t r i c t i o n s o n p r o p e r t i e s r e l a t e d t o z o n i n g o r o t h e r l a n d d eve l o p m e n t s t a n d a r d s. C e r t a i n p r o p e r t i e s l o c a t e d w i t h i n t h e 1 9 8 5 O a k H i l l A r e a S t u d y h a ve a s s o c i a t e d RC s t h a t s e t f o r t h d eve l o p m e n t s t a n d a r d s t h a t a r e l e s s r e s t r i c t i ve t h a n c u r r e n t c o d e a l l o w s. T h e RC A u n d e r c o n s i d e r a t i o n t h i s eve n i n g g r a n t s t h e l a n d o w n e r t h e a b i l i t y t o d eve l o p u n d e r r u l e s i n e f f e c t i n 1 9 8 1 , t h u s e l i m i n a t i n g t h e n e e d t o m e e t t h e r e s t r i c t i o n s s e t f o r t h i n t h e S a ve O u r S p r i n g s o r d i n a n c e, i n c l u d i n g i m p e r v i o u s c o ve r a n d w a t e r q u a l i t y t r e a t m e n t . • W h e n a p p l i c a n t s s e e k t o r e z o n e p r o p e r t i e s w i t h s u c h RC s, t h e r e i s a n o p p o r t u n i t y t o r e q u e s t f o r g r e a t e r e n v i r o n m e n t a l p r o t e c t i o n s t h a n w o u l d o t h e r w i s e b e a l l o w e d . • C I T Y O F A U S T I N W A T E R S H E D P R O T E C T I O N D E P A R T M E N T 2 Save Our Springs Ordinance C u r r e n t c o d e r e q u i r e m e n t s • • • I mp e rv i o u s C ove limi t e d t o 2 5 % n e t s i t e a re a No n - d eg ra d a t io n st a n d a rd wa t e r q u a li t y t re a t me n t P ro t e ct i o n s f o r slo p e s g re a t e r t h a n 1 5 % , C rit i ca l Wa t e r Qu a lit y Z o n e s (C WQZ ), Wa t e r Q u a li t y Tra n si t i o n Z o n e s (WQT Z ), cu t a n d f ill limit a t io n s C I T Y O F A U S T I N W A T E R S H E D P R O T E C T I O N D E P A R T M E N T 3 1981 Regulations R i v e r s, L a ke s, a n d Wa t e r c o u r s e s • • • • • P ro t e c t s n a t u ra l a n d t ra d i t i o n a l c h a ra c t e r o f wa t e r wa y s N o a dve rs e f l o o d i n g i m p a c t s I m p e r v i o u s c ove r l i m i t e d by zo n i n g N o wa t e r q u a l i t y t re a t m e n t re q u i re m e n t s N o p ro t e c t i o n s f o r s l o p e s g re a t e r t h a n 1 5 % , n o C r i t i c a l Wa t e r Q u a l i t y Z o n e s ( C W Q Z ) o r Wa t e r Q u a l i t y Tra n s i t i o n Z o n e s ( W QT Z ) , n o c u t a n d f i l l l i m i t a t i o n s C I T Y O F A U S T I N W A T E R S H E D P R O T E C T I O N D E P A R T M E N T 4 Location Map • 7715 ½ SH 71 • Edwards Aquifer Contributing Zone of Barton Springs C I T Y O F A U S T I N W A T E R S H E D P R O T E C T I O N D E P A R T M E N T 5 Site Context • Williamson Creek Watershed • Water Quality Transition Zone • Critical Water Quality Zone • Full Purpose Zoning Jurisdiction C I T Y O F A U S T I N W A T E R S H E D P R O T E C T I O N D E P A R T M E N T 6 Topography • Site access through WQTZ is required exist • Slopes greater than 15% C I T Y O F A U S T I N W A T E R S H E D P R O T E C T I O N D E P A R T M E N T 7 Recommendation Staff recommends approval of the Restrictive Covenant Amendment with the following conditions: • This application completes the project established by the Restrictive Covenant such that any further development or redevelopment is subject to current code at the time of site development permit application. • This project shall comply with current code, including SOS non-degradation water quality treatment, except for the following exceptions: a) 50% impervious cover on a gross site area calculation shall be allowed rather than the 65% b) Cut and fill shall not exceed 8 feet except for building foundations and storm water control currently allowed, measures and appurtenances, c) Stormwater control facilities will be allowed within the Water Quality Transition Zone, d) LDC 25-8-301 and 25-8-302 related to construction on slopes does not apply. C I T Y O F A U S T I N W A T E R S H E D P R O T E C T I O N D E P A R T M E N T 8