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Exhibit J- Proposed Plant List for Reclamation in Open Space Areas As shown on Exhibit I-Proposed Reclamation Guidelines, the existing reclamation standards of the existing permits specify the application of basic plant species seed mix. The proposed plant list is more comprehensive and complex. Even the City’s Grow Green Guide includes plants that are more suited to the arid Hill Country than the moist Bottomland Hardwoods. The following lists are tailored to the individual ecological habitats onsite to promote and enhance their natural characteristics and ecological function. BLACKLAND PRAIRIE LANDSCAPE - BLACKLAND PRAIRIE PLANT LIST Seed application rate: 10 pounds per acre (Source of application rate: Native American Seed Company). Scientific Name Common Name Scientific Name Common Name Agalinis heterophylla Prairie Agalinis Eryngium yuccifolium Rattlesnake Master Andropogon gerardii Big Bluestem Gaillardia pulchella Indian Blanket Andropogon virginicus Broomsedge Bluestem Asclepias incarnata Rose Milkweed Asclepias speciosa Showy Milkweed Asclepias tuberosa Butterflyweed Bothriochloa barbinodis Cane Bluestem Bouteloua curtipendula Sideoats Grama Buchloe dactyloides Buffalograss Callirhoe involucrata Winecup Callirhoe leiocarpa Annual Winecup Centaurea americana American Basketflower Chamaecrista fasciculata Partridge Pea Chasmanthium latifolum Inland Seaoats Chloris cucullata Dalea purpurea var. purpurea Hooded Windmill Grass Purple Prairie Clover Glandularia bipinnatifida var. bipinnatifida Prairie Verbena Helianthus annuus Maximilian Sunflower Ipomopsis rubra Standing Cypress Leptochloa dubia Green Sprangletop Lindheimeri texana Texas Yellow Star Monarda citridora Panicum virgatum Lemon Mint Switchgrass Paspalum floridanum Florida Paspalum Penstemon cobaea Foxglove Plains Bristlegrass Plains Bristlegrass Plains Coreopsis Rudbeckia hirta Salvia farinacea Plains Coreopsis Black-eyed Susan Mealy Blue Sage Schizachyrium scoparium Little Bluestem Desmanthus illinoensis Illinois Bundleflower Silphium albiflorum White Rosinweed Dracopis amplexicaulis Clasping Coneflower Sorghastrum nutans Indiangrass Elymus canadensis Prairie Wildrye Sporobolus cryptandrus Sand Dropseed Elymus virginicus Virginia Wildrye Triden albescens White Tridens Engelmannia peristenia Cutleaf Daisy Tridens flavus Purpletop Eragrostis trichodes Sand Lovegrass Tripsacum dactyloides Eastern Gamagrass Eriochloa sericea Texas Cupgrass Submittal Date: January 22, 2020 Page 1 of 3 PUD CASE #: C814-2018-0154-AUSTIN GREEN 1 of 54B-073 of 3Exhibit J- Proposed Plant List for Reclamation in Open Space Areas BLACKLAND PRAIRIE LANDSCAPE - RIPARIAN RECOVERY PLANT LIST Seed application rate: 9 pounds per acre (Source of application rate: Native American Seed Company). Scientific Name Common Name Scientific Name Common Name Andropogon gerardii Big Bluestem Leptochloa dubia Green Sprangletop Andropogon glomeratus Bushy Bluestem Lobelia cardinalis Cardinal Flower Asclepias incarnata Rose Milkweed Monarda citridora Lemon Mint Bothriochloa barbinodis Cane Bluestem Oenothera speciosa Pink Evening Primrose Bouteloua curtipendula Sideoats Grama Panicum virgatum Switchgrass Chamaecrista fasciculata Partridge Pea Paspalum floridanum Florida Paspalum Chasmanthium latifolum Inland Seaoats Coreopsis tinctoria Plains Coreopsis Desmanthus illinoensis Illinois Bundleflower Rudbeckia hirta Salvia coccinea Setaria scheelei Black-Eyed Susan Scarlet Sage Southwestern Bristlegrass Dracopis amplexicaulis Clasping Coneflower Setaria vulpiseta Plains Bristlegrass Elymus canadensis Prairie Wildrye Sorghastrum nutans Indiangrass Elymus virginicus Virginia Wildrye Sporobolus airoides Alkali Sacaton Engelmannia peristenia Cutleaf Daisy Sporobolus cryptandrus Sand Dropseed Eriochloa sericea Texas Cupgrass Triden albescens White Tridens Helianthus angustifolius Swamp Sunflower Tripsacum dactyloides Eastern Gamagrass Helianthus maximiliani Maximilian Sunflower Verbesina virginica Frostweed Scientific Name Common Name Scientific Name Common Name Populus deltoides Eastern Cottonwood Quercus fusiformis Quercus macrocarpa Live oak Bur Oak Quercus shumardii Shumard Oak Quercus stellate Salix nigra Taxodium distichum Post oak Black Willow Bald Cypress Juniperus virginiana Eastern red cedar Ulmus americana American Elm Maclura ponifera Bois d’Arc Ulmus crassifolia Cedar Elm Platanus occidentalis American Sycamore Ungnadia speciosa Mexican Buckeye Iva annua Marsh Elder TRANSITIONAL SAVANNA LANDSCAPE Acer negundo Carya illinoinensis Celtis laevigata Celtis reticulate Box Elder Pecan Sugar Hackberry Netleaf Hackberry Fraxinus pennsylvanica Green Ash Juglans microcarpa Juglans nigra Little walnut Black Walnut Submittal Date: January 22, 2020 Page 2 of 3 PUD Case #: C814-2018-0154 2 of 54B-073 of 3Exhibit J- Proposed Plant List for Reclamation in Open Space Areas BOTTOMLAND HARDWOOD LANDSCAPE Scientific Name Common Name Scientific Name Common Name Acer negundo Aesculus pavia Box Elder Red Buckeye Morella cerifera Wax Myrtle Platanus occidentalis American Sycamore Baccharis salicina Willow Baccharis Populus deltoides Eastern Cottonwood Carya illinoinensis Pecan Celtis laevigata Celtis reticulate Sugar Hackberry Netleaf Hackberry Quercus fusiformis Quercus macrocarpa Live oak Bur Oak Quercus shumardii Shumard Oak Cephalanthus occidentalis Buttonbush Quercus stellate Post oak Fraxinus pennsylvanica Green Ash Ilex decidua Juglans microcarpa Juglans nigra Possumhaw Little walnut Black Walnut Sabal minor Salix nigra Taxodium distichum Dwarf Palmetto Black Willow Bald Cypress Ulmus americana American Elm Juniperus virginiana Eastern red cedar Ulmus crassifolia Cedar Elm Maclura ponifera Bois d’Arc Ungnadia speciosa Mexican Buckeye WETLAND PLANTS Seed application rate: 20 pounds per acre (Source of application rate: Native American Seed Company). Within the inundated areas of wetland benches, herbaceous planting will include individual plants from Exhibit J-Proposed Plant List for Reclamation in Open Spaces Areas and will be planted at 680 plants/acre. The inundated wetland benches will not include woody plantings. The wetland herbaceous plantings will be monitored to a success criteria for years 1 and 2. During year 1, wetland vegetation will include a minimum of 50% aerial cover of the wetland bench (not open water). During year 2, wetland vegetation will include a minimum of 80% aerial cover of the wetland bench (not open water). Wetland plantings densities from professional experience on USACE-approved wetland banks in North Carolina and survival percentages adapted from “Performance Standards and Monitoring Protocols for Nontidal Wetland Mitigation Banks in Maryland” (USACE 2015). Scientific Name Common Name Scientific Name Common Name Saururus cerenuus Lizards Tail (FACW) Panicum virgatum Switchgrass (FAC) Amorpha fruticose Swamp Milkweed (FACW) Platanus occidentalis American sycamore (FAC) Andropogon glomeratus Bushy bluestem (FACW) Populus deltoides Eastern cottonwood (FAC) Asclepias incarnata BCarex cherokeensis Swamp milkweed (FACW) Quercus macrocarpa Bur oak (FACU) Cherokee sedge (FACW) Quercus muehlenbergii Chinquapin oak (FAC) Carya illinoinensis Pecan (FAC) Ranunculus abortivus Littleleaf buttercup (FACW) Cephalanthus occidentalis Buttonbush (OBL) Sagittaria latifolia Broadleaf arrowhead (OBL) Chasmanthium latifolium Indian woodoats (FACU) Salix nigra Black willow (FACW) Chasmanthium laxum Slender woodoats (FAC) Taxodium distichum Bald Cypress (OBL) Ilex decidua Deciduous holly (FAC) Tripsacum dactyloides Eastern gamagrass (FAC) Muhlenbergia lindheimeri Lindheimer’s muhly (FACW) Muhlenbergia rigens Deergrass (FACU) Submittal Date: November 27, 2019 Page 3 of 3 PUD Case #: C814-2018-0154 3 of 54B-073 of 30 PROPOSED For a complete description of proposed plan, please reference the following exhibits: · · · · · · · · · · · · · · · Exhibit A - Description of Property Exhibit B - Zoning Map Exhibit C - Austin Green Land Use Map and Density Table Exhibit D - Zoning Use Summary Table Exhibit E - Site Development Regulations Exhibit F - Proposed Parkland and Open Space Master Plan and Open Space Amenity Matrix Exhibit G - Example Parkland Open Space Concepts Exhibit H - Typical Road Sections Exhibit I - Proposed Reclamation Guidelines Exhibit J - Proposed Plant List for Reclamation in Open Space Areas Exhibit K - Proposed Critical Water Quality Zone (CWQZ) Exhibit L - Proposed Floodplain and Water Quality Quality Exhibit M - CEF and Buffers Exhibit N - Phasing Plan Exhibit O - Example House Products F.M. 9 6 9 0 600' 1200' GRAPHIC SCALE 600' 196.56 AC 0 3 Y 1 W E H T A T S 505.68 AC ELM CREEK WATERSHED 26.94 AC 3 7 F.M. 9 18.09 AC Y 130 W E H T A T S 69.54 AC 97.03 AC 47.97 AC 178.73 AC 76.61 AC 129.12 AC 50' ERZ SETBACK FROM CENTERLINE OF CWQZ 169.15 AC 104.00 AC COLORADO RIVER WATERSHED 23.53 AC 272.57 AC 88.16 AC 89.55 AC CRITICAL WATER QUALITY ZONE AREAS TOTAL IN ELM CREEK WATERSHED ±106 ACRES TOTAL IN COLORADO RIVER WATERSHED ±409 ACRES TOTAL CWQZ AREA TOTAL CONSTRAINED CWQZ AREA ±515 ACRES ±21 ACRES TOTAL UNCONSTRAINED CWQZ AREA ±494 ACRES NOTE: REFERENCE PROPOSED CODE MODIFICATION (25-8-92) REGARDING ESTABLISHING CRITICAL WATER QUALITY ZONES ALONG MAJOR WATERWAYS PER THIS EXHIBIT. AUSTIN GREEN PUD SUBMITTAL PROPOSED CWQZ EXHIBIT "K" (SHEET 1 OF 2) SUBMITTAL DATE: JANUARY 22, 2020 110.93 AC PROPOSED CWQZ IN THIS AREA MATCHES EXISTING CWQZ SET BY CITY OF AUSTIN LEGEND PROPERTY LINE DRAINAGE AREA BOUNDARY WATERSHED DELINEATION PROPOSED CRITICAL WATER QUALITY ZONE (CWQZ) CONSTRAINED CRITICAL WATER QUALITY ZONE (REF. EXHIBIT "N1") UNCONSTRAINED CRITICAL WATER QUALITY ZONE (REF. EXHIBIT "N1") LINEAR SEGMENT OF CWQZ (≈5230 LF) LINEAR CWQZ SEGMENTS SEGMENT LENGTH (LF) 1 2 3 4 5 6 7 660 290 550 2090 360 740 540 PUD CASE #: C814-2018-0154 - AUSTIN GREEN 4 of 54B-073 of 3PROPOSED For a complete description of proposed plan, please reference the following exhibits: · · · · · · · · · · · · · · · Exhibit A - Description of Property Exhibit B - Zoning Map Exhibit C - Austin Green Land Use Map and Density Table Exhibit D - Zoning Use Summary Table Exhibit E - Site Development Regulations Exhibit F - Proposed Parkland and Open Space Master Plan and Open Space Amenity Matrix Exhibit G - Example Parkland Open Space Concepts Exhibit H - Typical Road Sections Exhibit I - Proposed Reclamation Guidelines Exhibit J - Proposed Plant List for Reclamation in Open Space Areas Exhibit K - Proposed Critical Water Quality Zone (CWQZ) Exhibit L - Proposed Floodplain and Water Quality Quality Exhibit M - CEF and Buffers Exhibit N - Phasing Plan Exhibit O - Example House Products · GENERAL NOTES: · Within 100-year WSE level, species to be from Riparian Recover mix and Blackland Prairie mix (see Exhibit J4-Proposed Plant List for Reclamation in Open Spaces Areas). In areas within the 100-year WSE, approximately 100' of the vegetation listed above will not be mowed. Vegetation varies outside of drainage easement. · · Where CEF buffers occur, no mowing allowed. · If CWQZ is 200’ or larger application rates in alignment with Exhibit I-Reclamation Standards for Open Space will apply. If CWQZ is less than 200’ the application rates for 100% of the 100 year WSE will be applied. OS 4 shall be permitted to have up to 2 acres of mowed area as part of the village center park per Exhibit F-Proposed Parkland & Open Space Master Plan. · s e i r a V h c n e B ) ' 0 1 . n M i ( d e t t i m r e P l i a r T n o i t a c o l n o s d n e p e d n o i t a c o l l i a r T . i n M % 2 e n o Z d r a z a H n o s o r E i l e n n a h C t o l i P ) s e i r a V h t i d W ( n h i t i W s r e d n a e M m o t t o B l e n n a h C e h t E S W r a e Y 0 0 1 , ) s e i r a V h t i d W ( h c n e B n o i t a t e g e V % 0 2 - 2 m o r f e g n a r s e p o S l s e i r a V e p o S l d n a 1 : 3 n e e w e B t 1 : 5 l ) s e p o S e d S n o i i g n d n e p e D s e i r a V h d W t i ( m o t t o B l e n n a h C g n i r e d n a e M s e i r a V e p o S l : d n a 1 3 n e e w e B t 1 5 : s e i r a V h c n e B ) ' 5 . i n M ( S 9 0 6 o t d e r o t s e r e b o t Z Q W C e h t f o % 0 7 , s e n o t s s a s m e t i h c u s y b d e n i f e d s i e g d E . c t e , e p a c s d r a h , s r e d u o b l , i g n g d e , s g o l . d e t i i b h o r p s i i g n w o m d n a s d r a d n a t s . n a p l e t i s t a i d e n m r e t e d e b o T l l a h s s e r u t c u r t s p o r D . l l a t " 9 - " 3 e r u t c u r t s p o r D . e n o t s r e v i r h t i w l e n n a h c t o l i p g n i r e d n a e M ' 0 0 5 f o i g n c a p s e g a r e v a h t i l w y m o d n a r r u c c o e p o S 1 l : 4 l i a c p y T : l e n n a h C t o l i P ' l 5 . 3 y e t a m x o r p p A i n o i t a c o l n o s d n e p e d n o i t a c o l l i a r T d e t t i m r e P l i a r T S 9 0 6 o t d e r o t s e r e b o t Z Q W C e h t f o % 0 7 . d e t i i b h o r p s i i g n w o m d n a s d r a d n a t s , s e n o t s s a s m e t i h c u s y b d e n i f e d s i e g d E . c t e , e p a c s d r a h , s r e d u o b l , i g n g d e , s g o l . n a p l e t i s t a i d e n m r e t e d e b o T l l a h s s e r u t c u r t s p o r D . l l a t " 9 - " 3 e r u t c u r t s p o r D . e n o t s r e v i r h t i w l e n n a h c t o l i p g n i r e d n a e M ' 0 0 5 f o i g n c a p s e g a r e v a h t i l w y m o d n a r r u c c o e p o S 1 l : 4 l i a c p y T : l e n n a h C t o l i P ' l 5 . 3 y e t a m x o r p p A i ) ' 0 1 . i n M ( s e i r a V h c n e B s e i r a V e p o S l d n a 1 : 3 n e e w e B t 1 : 5 s e i r a V e p o S l d n a 1 : 3 n e e w e B t 1 : 5 ) ' 5 . i n M ( s e i r a V h c n e B t n e m e s a E e g a n a r D i ' 0 0 1 e n o Z y t i l a u Q r e t a W l a c i t i r C d n a e n o Z d r a z a H n o s o r E i l e n n a h C t o l i P E S W r a e Y 0 0 1 l ) s e p o S e d S n o i i g n d n e p e D s e i r a V h t i d W ( m o t t o B l e n n a h C I N O T C E S L A C P Y T - I A E R A T N E M E S A E E G A N A R D R O Z Q W C I ' I 0 0 1 F O M A R G A D L E N N A H C D E N A R T S N O C I ) s e i r a V h t i d W ( t n e m e s a E e g a n a r D i e n o Z y t i l a u Q r e t a W l a c i t i r C d n a I N O T C E S L A C P Y T - I A E R A T N E M E S A E E G A N A R D R O Z Q W C I ' I 0 0 1 > M A R G A D L E N N A H C D E N A R T S N O C N U I AUSTIN GREEN PUD SUBMITTAL PROPOSED CWQZ EXHIBIT "K" (SHEET 2 OF 2) SUBMITTAL DATE: JANUARY 22, 2020 PUD CASE #: C814-2018-0154 - AUSTIN GREEN 5 of 54B-073 of 300 2000' 4000' GRAPHIC SCALE 2000' LEGEND PROPOSED FLOOD PLAIN BOUNDARY LINE 2 MILE ETJ AREAS OF FLOODPLAIN TO BE REMOVED PROPOSED For a complete description of proposed plan, please reference the following exhibits: · · · · · · · · · · · · · · · Exhibit A - Description of Property Exhibit B - Zoning Map Exhibit C - Austin Green Land Use Map and Density Table Exhibit D - Zoning Use Summary Table Exhibit E - Site Development Regulations Exhibit F - Proposed Parkland and Open Space Master Plan and Open Space Amenity Matrix Exhibit G - Example Parkland Open Space Concepts Exhibit H - Typical Road Sections Exhibit I - Proposed Reclamation Guidelines Exhibit J - Proposed Plant List for Reclamation in Open Space Areas Exhibit K - Proposed Critical Water Quality Zone (CWQZ) Exhibit L - Proposed Floodplain and Water Quality Quality Exhibit M - CEF and Buffers Exhibit N - Phasing Plan Exhibit O - Example House Products APPROX. 77 ACRES OF OFF-SITE, UNFILTERED STORMWATER TO BE TREATED BY AUSTIN GREEN STORMWATER FACILITIES APPROX. 238 ACRES OF NEIGHBORING PROPERTY OUT OF FLOODPLAIN APPROX. 43 ACRES OF TRAVIS COUNTY CIP HAROLD GREEN PROJECT ALIGNMENT OUT OF FLOODPLAIN NOTES: -APPROX. 1347.76 ACRES OUTSIDE OF 100-YEAR FLOODPLAIN -SPECIFIC AREAS OF ADJACENT PROPERTIES TO BE REMOVED FROM FLOODPLAIN WILL BE FINALIZED DURING THE FLOODPLAIN MODIFICATION SUBMITTAL AUSTIN GREEN PUD SUBMITTAL PROPOSED FLOODPLAIN AND WATER QUALITY EXHIBIT "L" SUBMITTAL DATE: JANUARY 22, 2020 PUD CASE #: C814-2018-0154 - AUSTIN GREEN 6 of 54B-073 of 3. d x m 6 3 x 4 2 _ M _ t i b i h x E _ 2 2 _ 1 0 _ 0 2 0 2 \ 2 2 _ 1 0 _ 0 2 0 2 \ F E C \ s p a m \ s i g \ a t t e i r a M n i t r a M n e e r G n i t s u A 2 4 0 - 8 1 - 5 0 \ s r e d l o F t c e j o r P \ P : Disclaimer Site delineation of CEF wetlands onsite does not include assumption or designation as jurisdictional under Section 404 of the Clean Water Act, which is governed by seperate requirements. This is a mining site, with development permits that allow for mining operations. At the time of submittal of this PUD, potential wetland vegetation occurs in some locations onsite. The Austin Green ERI provides details about areas onsite that contained potential wetland vegetation at the time of investigation in 2018-2019. These areas and all other areas onsite occur under several site development permits that allow for mining. No grading will be allowed within the 150-foot setback for the five (5) CEF springs along the Colorado River within 580 feet west (upstream) of the TxDOT SH 130 ROW. Grading may occur within the outermost 50 feet of the standard 150-foot setback for all other CEF springs along the Colorado River as long as grading does not encroach within 10 vertical feet of the elevation of the respective CEF spring. If grading is anticipated in the outermost 50 feet of CEF spring setback, then the elevation of that spring will be field verified during detailed grading design. For a complete description of proposed plan, please reference the following exhibits: Exhibit A - Description of Property Exhibit B - Zoning Map Exhibit C - Austin Green Land Use Map and Density Table Exhibit D - Zoning Use Summary Table Exhibit E - Site Development Regulations Exhibit F - Proposed Parkland & Open Space Master Plan and Open Space Amenity Matrix Exhibit G - Example Parkland Open Space Concepts Exhibit H - Typical Road Sections Exhibit I - Proposed Reclamation Guidelines Exhibit J - Proposed Plant List for Reclamation in Open Space Areas Exhibit K - Proposed Critical Water Quality Zone (CWQZ) Exhibit L - Proposed Floodplain and Water Quality Exhibit M - CEF and Buffers Exhibit N - Phasing Plan Exhibit O - Example Housing Products * * * * !( !( !( !( !( !( !( !( !( !( !( * !( !( !( !( !( !( ³ 600 300 0 600 !( Feet 1:7,200 1 inch = 600 Feet AT 24" x 36" SCALE Austin Green PUD Submittal CEF and Buffers Exhibit "M" This map is intended for planning purposes only. All map data should be considered preliminary. All boundaries and designations are subject to confirmation. Esri, HERE, Garmin, (c) OpenStreetMap contributors Preserved CEF Preserved CEF Buffer Temporarily Impacted / Enhanced CEF Temporarily Impacted / Enhanced CEF Buffer Permanently Impacted CEF Permanently Impacted CEF Buffer * Possible Wetland Mitigation Area PUD Case #C814-2018-0154 Austin Green Submittal Date: January 22, 2020 7 of 54B-073 of 3PROPOSED For a complete description of proposed plan, please reference the following exhibits: · · · · · · · · · · · · · · · Exhibit A - Description of Property Exhibit B - Zoning Map Exhibit C - Austin Green Land Use Map and Density Table Exhibit D - Zoning Use Summary Table Exhibit E - Site Development Regulations Exhibit F - Proposed Parkland and Open Space Master Plan and Open Space Amenity Matrix Exhibit G - Example Parkland Open Space Concepts Exhibit H - Typical Road Sections Exhibit I - Proposed Reclamation Guidelines Exhibit J - Proposed Plant List for Reclamation in Open Space Areas Exhibit K - Proposed Critical Water Quality Zone (CWQZ) Exhibit L - Proposed Floodplain and Water Quality Quality Exhibit M - CEF and Buffers Exhibit N - Phasing Plan Exhibit O - Example House Products 0 600' 1200' GRAPHIC SCALE 600' PROPOSED AFD SITE EXISTING HAROLD GREEN ROADWAY PROPOSED HAROLD GREEN ROADWAY PROPOSED SCHOOL SITE Proposed Land Use Districts Mixed-Use 1 (MU1)(237.44 ac./11.2%) Mixed-Use 2 (MU2)(310.24 ac./14.6%) Mixed-Residential (MR)(870.35 ac./40.9%) Open Space (OS)(708.22 ac./33.3%) PHASE ACREAGE ASSOCIATED IMPROVEMENTS REGIONAL RETENTION, PARK AND OPEN SPACE NETWORK AND PARKLAND DEDICATION, POTENTIAL PUBLIC ART INSTALLATION PER EXHIBIT I, APPLICABLE RECLAMATION IMPROVEMENTS WATER QUALITY, PARK AND OPEN SPACE NETWORK AND PARKLAND DEDICATION, APPLICABLE WATER QUALITY, UTILITY, & TRANSPORTATION IMPROVEMENTS, APPLICABLE RECLAMATION IMPROVEMENTS REGIONAL RETENTION, PARK AND OPEN SPACE NETWORK AND PARKLAND DEDICATION, POTENTIAL PUBLIC ART INSTALLATION PER EXHIBIT I, APPLICABLE RECLAMATION IMPROVEMENTS REGIONAL RETENTION, PARK AND OPEN SPACE NETWORK AND PARKLAND DEDICATION, APPLICABLE RECLAMATION IMPROVEMENTS PARK AND OPEN SPACE NETWORK AND PARKLAND DEDICATION, APPLICABLE WATER QUALITY, UTILITY, & TRANSPORTATION IMPROVEMENTS, POTENTIAL PUBLIC ART INSTALLATION PER EXHIBIT I, APPLICABLE RECLAMATION IMPROVEMENTS PARK AND OPEN SPACE NETWORK AND PARKLAND DEDICATION, APPLICABLE WATER QUALITY, UTILITY, & TRANSPORTATION IMPROVEMENTS, POTENTIAL PUBLIC ART INSTALLATION PER EXHIBIT I, APPLICABLE RECLAMATION IMPROVEMENTS PARK AND OPEN SPACE NETWORK AND PARKLAND DEDICATION, APPLICABLE WATER QUALITY, UTILITY, & TRANSPORTATION IMPROVEMENTS, APPLICABLE RECLAMATION IMPROVEMENTS PARK AND OPEN SPACE NETWORK AND PARKLAND DEDICATION, APPLICABLE WATER QUALITY, UTILITY, & TRANSPORTATION IMPROVEMENTS, FINAL SUBDIVISION OF SCHOOL TRACT, APPLICABLE RECLAMATION IMPROVEMENTS FLOODPLAIN MITIGATION AND RECLAMATION, PARK AND OPEN SPACE NETWORK AND PARKLAND DEDICATION, APPLICABLE WATER QUALITY, UTILITY, & TRANSPORTATION IMPROVEMENTS, POTENTIAL PUBLIC ART INSTALLATION PER EXHIBIT I, APPLICABLE RECLAMATION IMPROVEMENTS FLOODPLAIN MITIGATION AND RECLAMATION, PARK AND OPEN SPACE NETWORK AND PARKLAND DEDICATION, APPLICABLE WATER QUALITY, UTILITY, & TRANSPORTATION IMPROVEMENTS, POTENTIAL PUBLIC ART INSTALLATION PER EXHIBIT I, APPLICABLE RECLAMATION IMPROVEMENTS PARK AND OPEN SPACE NETWORK AND PARKLAND DEDICATION, APPLICABLE WATER QUALITY, UTILITY, & TRANSPORTATION IMPROVEMENTS, POTENTIAL PUBLIC ART INSTALLATION PER EXHIBIT I, APPLICABLE RECLAMATION IMPROVEMENTS FLOODPLAIN MITIGATION AND RECLAMATION, PARK AND OPEN SPACE NETWORK AND PARKLAND DEDICATION, APPLICABLE WATER QUALITY, UTILITY, & TRANSPORTATION IMPROVEMENTS, APPLICABLE RECLAMATION IMPROVEMENTS PARK AND OPEN SPACE NETWORK AND PARKLAND DEDICATION, APPLICABLE WATER QUALITY, UTILITY, & TRANSPORTATION IMPROVEMENTS FLOODPLAIN MITIGATION AND RECLAMATION, PARK AND OPEN SPACE NETWORK AND PARKLAND DEDICATION, APPLICABLE WATER QUALITY, UTILITY, & TRANSPORTATION IMPROVEMENTS, FINAL SUBDIVISION OF SCHOOL TRACT, POTENTIAL PUBLIC ART INSTALLATION PER EXHIBIT I, APPLICABLE RECLAMATION IMPROVEMENTS REGIONAL RETENTION, PARK AND OPEN SPACE NETWORK AND PARKLAND DEDICATION, APPLICABLE WATER QUALITY, UTILITY, & TRANSPORTATION IMPROVEMENTS, FINAL SUBDIVISION OF AFD TRACT, POTENTIAL PUBLIC ART INSTALLATION PER EXHIBIT I, APPLICABLE RECLAMATION IMPROVEMENTS PARK AND OPEN SPACE NETWORK AND PARKLAND DEDICATION, APPLICABLE WATER QUALITY, UTILITY, & TRANSPORTATION IMPROVEMENTS, APPLICABLE RECLAMATION IMPROVEMENTS NW-A 133.38 NW-B 90.11 NC 291.00 NE 51.32 FE 171.54 EC 269.71 CC 28.25 SE-A 81.06 SE-B 172.35 SE-C 114.40 SC-A 133.86 SC-B 58.19 SW-A 232.25 SW-B 113.07 WC 116.22 FW 69.54 TOTAL 2126.25 LEGEND SITE BOUNDARY PROPERTY LINE PHASING DESIGNATION PUD CASE #: C814-2018-0154 - AUSTIN GREEN PROPOSED SCHOOL SITE NOTES: 1. PROPOSED PHASES AND ASSOCIATED IMPROVEMENTS ARE APPROXIMATE AT THIS TIME AND IN NO SEQUENTIAL ORDER. OWNER/DEVELOPER SHALL BE 2. ALLOWED TO DEVELOP EACH PHASE SEPARATELY AS THE MARKET CONDITIONS ALLOW. IMPROVEMENTS ASSOCIATED WITH THE TRAVIS COUNTY HAROLD GREEN ROADWAY PROJECT WILL BE CONSTRUCTED AS NECESSARY TO SERVE THE PROPOSED PROJECT AND ARE NOT INCLUDED IN THIS PHASING PLAN. 3. MINING OPERATIONS (INCLUDING RECLAMATION) WILL CEASE WITHIN 200' OF ANY RESIDENTIAL OR CIVIC LAND USE BY THE TIME THE FIRST CERTIFICATE OF OCCUPANCY IS GRANTED. 4. APPLICABLE DOWNSTREAM IMPROVEMENTS (DRAINAGE & WATER QUALITY) TO BE CONSTRUCTED AS REQUIRED FOR APPLICABLE DEVELOPMENT PHASES. 5. THE “OTHER PARKS” WILL BE PLANNED, DEVELOPED AND DEDICATED THROUGH THE SITE PLAN AND SUBDIVISION PROCESS IN PROPORTION TO DEVELOPMENT (E.G. 25% OF THE UNITS IN A SUBDIVISION WOULD REQUIRE 25% OF THE “OTHER PARKS” TO BE DEVELOPED AND DEDICATED). SURPLUS FROM ONE PHASE MAY BE APPLIED TO FUTURE PHASES SO LONG AS EVERY HOME IS WITHIN ¼ MILE OF AN “OTHER PARK” OR OPEN SPACE. ANY DEVELOPMENT AND ITS ASSOCIATED GRADING, RECLAMATION, AND/OR REVEGETATION WILL DEPICT HOW THE PROJECT ADHERES TO THE STANDARDS SET FORTH IN THIS PUD AT THE TIME OF THAT DEVELOPMENT'S ASSOCIATED PRELIMINARY PLAN, INFRASTRUCTURE IMPROVEMENT PLANS AND/OR SITE DEVELOPMENT PERMIT. ANY GRADING, RECLAMATION OR REVEGETATION WORK THAT OCCURS PRIOR TO A PRELIMINARY PLAN OR NEW SITE DEVELOPMENT PERMIT BUT NOT FOR THE PURPOSE OF DEVELOPMENT (E.G. CONTINUED RESOURCE EXTRACTION) WILL FILE FOR A CORRECTION OR MODIFICATION TO EXISTING PERMITS. 6. 7. REQUIRED URBAN TRAILS AS SHOWN IN THE PUD WILL BE CONSTRUCTED AND DEDICATED WITH EACH APPLICABLE PHASING AREA. URBAN TRAILS SHALL 8. COUNT TOWARD ROUGH PROPORTIONALITY OF TRANSPORTATION IMPROVEMENTS. AN OS AREA SHALL BE DEVELOPED AND DEDICATED AT THE TIME ITS ASSOCIATED PHASE BEGINS DEVELOPMENT. OS AREAS 1-5 ALONG THE COLORADO RIVER SHALL HAVE PUBLIC ACCESS PRIOR TO DEDICATION THROUGH A PARK EASEMENT RECORDED AT THE TIME OF PUD APPROVAL. AUSTIN GREEN PUD SUBMITTAL PHASING PLAN EXHIBIT "N" SUBMITTAL DATE: JANUARY 22, 2020 8 of 54B-073 of 3Residential Detached - Common Courtyard Residential Attached - Live/Work Unit, Townhouse Residential Attached - Multi-Unit House (3 to 8 units) Street Street, Court Yard or Open Space Street y e l l A y e l l A t e e r t S 10' min. Building Separation Alley t e e r t S t e e r t S Alley t e e r t S 20' min. courtyard Street Townhouses may be site planned as one single lot or as individual townhouse lots. Street, Court Yard or Open Space Residential Detached - Paseo Court Street, Alley or Park/Open Space Street, Alley or Park/Open Space Street, Alley, Park/Open Space, or Development Street, Alley, Park/Open Space, or Development t r u o C o e s a P t r u o C o e s a P Street, Alley, Park/Open Space, or Development In each paseo, garages always face the paseo court; however all front doors may either face the paseo court or adjacent street, alley, or park/open space consistently within the same paseo Street or Alley AUSTIN GREEN PUD EXHIBIT O - EXAMPLE HOUSING PRODUCTS SUBMITTAL DATE: JANUARY 22, 2020 GENERAL NOTES: · Residential products and site layout shown are preliminary and shown for illustrative purposes only to illustrate intent of site design. Final layout, building placement and product to be determined during site plan, building permit, and/or preliminary plan. PROPOSED For a complete description of proposed plan, please reference the following exhibits: · · · · · · Exhibit A - Description of Property Exhibit B - Zoning Map Exhibit C - Austin Green Land Use Map and Density Table Exhibit D - Zoning Use Summary Table Exhibit E - Site Development Regulations Exhibit F - Proposed Parkland & Open Space Master Plan and Open Space Amenity Matrix · · · · · · · · · Exhibit G - Example Parkland Open Space Concepts Exhibit H - Typical Road Sections Exhibit I - Proposed Reclamation Guidelines Exhibit J - Proposed Plant List for Reclamation in Open Space Areas Exhibit K - Proposed Critical Water Quality Zone (CWQZ) Exhibit L - Proposed Floodplain and Water Quality Exhibit M - CEF and Buffers Exhibit N - Phasing Plan Exhibit O - Example Housing Products PUD CASE #: C814-2018-0154-AUSTIN GREEN 9 of 54B-073 of 3Attachment A 10 of 54B-073 of 311 of 54B-073 of 312 of 54B-073 of 313 of 54B-073 of 314 of 54B-073 of 315 of 54B-073 of 316 of 54B-073 of 317 of 54B-073 of 318 of 54B-073 of 319 of 54B-073 of 320 of 54B-073 of 321 of 54B-073 of 3 ENVIRONMENTAL COMMISSION MOTION 20200115 008b Date: January 15, 2020 Subject: Austin Green Planned Unit Development, C814-2018-0154 Motion by: Katie Coyne Seconded by: Mary Ann Neely RATIONALE: WHEREAS, increased development pressure to the City’s east will make it even more vital to develop in environmentally sensitive ways; WHEREAS, the site is identified in Imagine Austin as a Town Center; WHEREAS, the applicant is committed to dedicating over 858.22 acres, approximately 40% of the site, as parkland or open space; WHEREAS, the applicant is committed to meeting existing code or in most cases, exceeding Planned Unit Development (PUD) superiority requirements; WHEREAS, the applicant is requesting approval to create a new PUD with superior environmental design; WHEREAS, the applicant is committed to restoring previously industrial land to functioning riparian and open space assets; and WHEREAS, City of Austin Staff recommends the approval with conditions outlined below. THEREFORE, approval of the requested PUD creation with the ongoing commitment of the applicant to meet superiority elements outlined in the meeting backup, and with the following conditions: Environmental Commission Conditions: 1. That the applicant continue to work with and get approval from the Watershed Protection department for a land management and maintenance plan for parkland, open space, riparian zones, green infrastructure features, and other environmentally sensitive areas on site to ensure the long-term environmental function of the landscapes; and, that the applicant commit to this plan in the long-term. 2. Explore carbon capture credits and other mitigation banking that may encourage climate action / carbon 3. 858.22 (40%) acres of public open space and parkland, which includes approximately three miles of Colorado sequestration efforts regionally. River frontage shall be provided. 1 22 of 54B-073 of 34. Open space areas shall be restored with appropriate native vegetation outlined in the PUD. 5. Parks and open space areas shall utilize reclaimed water for irrigation. 6. 65% of stormwater shall be treated by dispersed green stormwater infrastructure which includes bio- filtration, rain gardens, and vegetated filter strips. 7. 77 acres of off-site drainage area shall be treated. 8. The project shall provide approximately 50 million cubic feet of additional storage volume for the watershed through a series of on-site retention ponds. Approximately 100 million cubic feet of additional storage volume shall be provided beyond the minimum required for on and off-site flows through three (3) on-site regional retention ponds for the Elm Creek watershed. The proposed 450-acre retention ponds will remove approximately 238 acres of neighboring property and 43 acres of Harold Green Road Right Of Way from the floodplain. These calculations are based on the Atlas 14 flood model for the adjusted 100-year floodplain. 9. Shall provide 29 acres of additional critical water quality zone. 10. Shall preserve 12.91 acres of wetland Critical Environmental Features (CEFs), 12.74 acres of wetland CEFs shall be enhanced and 9.97 acres of wetland CEFs shall be mitigated at 150% acre-for-acre and given the 150-foot buffer required by code. 11. Impervious cover shall be capped at 65% gross site area. 12. Shall preserve a significant stand of trees that have been identified on-site and shall meet current code for tree removal and mitigation. 13. Shall provide 6 miles of public trails throughout the development. 14. Shall meet a Carbon Impact score of 8. VOTE 8-0 For: Bedford, Smith, Creel, Thompson, Guerrero, Coyne, Neely, and Maceo Against: None Abstain: None Recuse: Ramberg Absent: Nill and Gordon Approved By: Linda Guerrero, Environmental Commission Chair 2 23 of 54B-073 of 3ITEM FOR ENVIRONMENTAL COMMISSION AGENDA COMMISSION MEETING DATE: January 15, 2020 NAME & NUMBER OF PROJECT: Austin Green PUD C814-2018-0154 NAME OF APPLICANT OR ORGANIZATION: Steven Spears Groundwork LOCATION: 11600-12337 Harold Green Road COUNCIL DISTRICT: 2-mile ETJ, will be District 2 once PUD is approved ENVIRONMENTAL REVIEW STAFF: ZONING CASE MANAGER: WATERSHED: REQUEST: STAFF RECOMMENDATION: RECOMMENDED CONDITIONS: Atha Phillips, Environmental Officer’s Office (512) 974-2132, atha.phillips@austintexas.gov Wendy Rhoades, Planning and Zoning (512) 974-7719, wendy.rhoades@austintexas.gov Colorado River Basin and Elm Creek Watershed, Suburban Watershed Classification, Desired Development Zone To create a new Planned Unit Development (PUD) Staff recommended with conditions 1. 858.22 (40%) acres of public open space and parkland, which includes approximately three miles of Colorado river frontage shall be provided. 2. Open space areas shall be restored with appropriate native vegetation outlined in the PUD. 3. Parks and open space areas shall utilize reclaimed water for irrigation. 4. 65% of stormwater shall be treated by dispersed green stormwater infrastructure which includes bio-filtration, rain gardens, and vegetated filter strips. 5. 77 acres of off-site drainage area shall be treated. 24 of 54B-073 of 36. The project shall provide approximately 50 million cubic feet of additional storage volume for the watershed through a series of on-site retention ponds. Approximately 100 million cubic feet of additional storage volume shall be provided beyond the minimum required for on and off-site flows through three (3) on-site regional retention ponds for the Elm Creek watershed. The proposed 450-acre retention ponds will remove approximately 238 acres of neighboring property and 43 acres of Harold Green Road ROW from the floodplain. These calculations are based on the Atlas 14 flood model for the adjusted 100-year floodplain. 7. Shall provide 29 acres of additional critical water quality zone. 8. Shall preserve 12.91 acres of wetland CEFs, 12.74 acres of wetland CEF shall be enhanced and 9.97 acres of wetland CEF shall be mitigated at 150% acre-for-acre and given the 150-foot buffer required by code. 9. Impervious cover shall be capped at 65% gross site area. 10. Shall preserve a significant stand of trees that have been identified on-site and shall meet current code for tree removal and mitigation. 11. Shall provide 6 miles of public trails throughout the development. 12. Shall meet a Carbon Impact score of 8. Page 2 of 2 25 of 54B-073 of 3Austin Green PUD C814-2018-0154 Atha Phillips, Environmental Program Coordinator Environmental Officer’s Office 26 of 54B-073 of 3Site Location Austin ETJ Austin City Limits Edwards Aquifer Recharge Zone Edwards Aquifer Contributing Zone North 27 of 54B-073 of 3Site Location North 28 of 54B-073 of 3Elm Creek Watershed Colorado River Basin Watershed Boundary Site Location North 29 of 54B-073 of 3Existing Floodplain Site Location North 30 of 54B-073 of 3Existing Critical Water Quality Zone Site Location North 31 of 54B-073 of 3Open Space Area 1 32 of 54B-073 of 3Open Space Area 3 33 of 54B-073 of 334 of 54B-073 of 3Background: • 2,126.25 acres • Colorado River and Elm Creek Watersheds • Active mining site • Mining has continued on this site for over 60 years • Currently operates one of the highest producing concrete batch plants in the Austin area Identified in Imagine Austin as a Town Center • 35 of 54B-073 of 3Existing and Proposed Floodplain Approximately 238 acres of property and 43 of ROW removed from the floodplain Site Location North 36 of 54B-073 of 3Existing and Proposed Critical Water Quality Zone Originally 486 acres Proposed 515 acres = 29 additional acres of CWQZ Site Location North 37 of 54B-073 of 3Proposed Critical Water Quality Zone Site Location North 38 of 54B-073 of 3North 39 of 54B-073 of 3Existing Trees: 40 of 54B-073 of 341 of 54B-073 of 342 of 54B-073 of 343 of 54B-073 of 344 of 54B-073 of 345 of 54B-073 of 3Comparison: Water Quality 100% capture volume or payment in lieu Existing Code Proposed PUD Drainage No adverse impact 100% capture volume 65% Green Stormwater Infrastructure Treating an additional 77 acres off-site area No adverse impact, floodplain will be modified to create flood storage ponds that will remove approximately 238 acres of neighboring property and 43 acres of Harold Green ROW from the Atlas 14 100- year floodplain. Impervious Cover 80% Commercial 60% Multi-family 65% Gross site area 1% of impervious cover reserved for parks Open Space 20% of non-residential tracts (Tier 1) Additional 20% (Tier 2) 708.22 acres open space 150 acres dedicated parkland Total: 858.22 acres (40%) Floodplain & CWQZ Restoration Only standard revegetation with mining permit Open space areas and critical water quality zones shall be restored with appropriate native vegetation outlined in the PUD. CWQZ Begins at 64 acres Re-establishing CWQZ and providing 29 additional acres 46 of 54B-073 of 3Comparison: Landscape Irrigation Potable water 100% reclaimed water Existing Code Proposed PUD Landscape Trees Dark Sky Initiative Green Building Current code Current code Current code including Heritage Tree ordinance Located significant stands of trees on the property to save. Otherwise current code including Heritage Tree ordinance. Full cut-off or shielded Full cut-off or shielded 2-Star Certified 2-Star Certified Landscape Irrigation Potable water 100% reclaimed water Carbon Impact Not regulated Impact Score = 8 47 of 54B-073 of 3Recommendation Recommended with the following conditions: 1. 858.22 (40%) acres of public open space and parkland, which includes approximately three miles of Colorado river frontage shall be provided. 5. 6. 2. Open space areas shall be restored with appropriate native vegetation outlined in the PUD. 3. 4. Parks and open space areas shall utilize reclaimed water for irrigation. 65% of stormwater shall be treated by dispersed green stormwater infrastructure which includes bio- filtration, rain gardens, and vegetated filter strips. 77 acres of off-site drainage area shall be treated. The project shall provide approximately 50 million cubic feet of additional storage volume for the watershed through a series of on-site retention ponds. Approximately 100 million cubic feet of additional storage volume shall be provided beyond the minimum required for on and off-site flows through three (3) on-site regional retention ponds for the Elm Creek watershed. The proposed 450-acre retention ponds will remove approximately 238 acres of neighboring property and 43 acres of Harold Green Road ROW from the floodplain. These calculations are based on the Atlas 14 flood model for the adjusted 100-year floodplain. Shall provide 29 acres of additional critical water quality zone. Shall preserve 12.91 acres of wetland CEFs, 12.74 acres of wetland CEF shall be enhanced and 9.97 acres of wetland CEF shall be mitigated at 150% acre-for-acre and given the 150-foot buffer required by code. Impervious cover shall be capped at 65% gross site area. 9. 10. Shall preserve a significant stand of trees that have been identified on-site and shall meet current code 7. 8. for tree removal and mitigation. 11. Shall provide 6 miles of public trails throughout the development. 12. Shall meet a Carbon Impact score of 8. 48 of 54B-073 of 3Exhibit R – Carbon Impact Statement Form Carbon Impact Statement Project: Austin Green Scoring Guide: 1-4: Business as usual 5-8: Some positive actions 9-12: Demonstrated leadership 1 2 3 4 5 6 7 8 9 10 11 12 Response: Y=1, N=0 Documentation: Y/N Transportation T1: Public Transit Connectivity T2: Bicycle Infrastructure T3: Walkability T4: Utilize TDM Strategies T5: Electric Vehicle Charging T6: Maximize Parking Reductions Water + Energy WE1: Onsite Renewable Energy WE2: Reclaimed Water Land Use LU1: Imagine Austin Activity Center or Corridor LU2: Floor-to-Area Ratio Food F1: Access to Food Materials M1: Adaptive Reuse 0 1 1 1 1 1 0 1 1 1 0 0 N N N N N N N N Y N N N Total Score: 8 The Carbon Impact Statement calculation is a good indicator of how your individual buildings will perform in the Site Category of your Austin Energy Green Building rating. This is for a PUD that will govern the transition of a 2,126.25-acre site from sand and gravel mining to a Major Town Center including allowable land uses such as a variety of compact housing types and commercial developments, connected street and trail improvements, accessible park and open space and other key community benefits. Attachment C 49 of 54B-073 of 3Exhibit R – Carbon Impact Statement Form T1. Is any functional entry of the project within 1/4 mile walking distance of existing or planned bus stop(s) serving at least two bus routes, or within 1/2 mile walking distance of existing or planned bus rapid transit stop(s), or rail station(s)? No. The project is outside of current service area. Conversations are in progress to coordinate future needs with CapMetro and a dedicated site for park and ride will be a part of the project. T2. Is there safe connectivity from the project site to an “all ages and abilities bicycle facility” as listed in the Austin Bicycle Master Plan? Yes. The project is planning to connect an internal trail to FM 969. T3. Is the property location “very walkable” with a minimum Walk Score of 70 (found at walkscore.com), or will the project include at least five new distinct basic services (such as a bank, restaurant, fitness center, retail store, daycare, or supermarket)? Yes. The project envisions having a town center and village center, both with a mixture of residential and non-residential uses. We are also requiring all residential units be within a quarter mile or less walking distance from a public amenity, park or trail. T4. Does the project utilize two or more of the following Transportation Demand Management strategies: unbundling parking costs from cost of housing/office space, providing shower facilities, providing secured and covered bicycle storage, and/or providing 2+ car sharing parking spaces for City-approved car share programs? Yes. T5. Will the project include at least one DC Fast Charging electric vehicle charging station? Yes. T6. Does the project utilize existing parking reductions in code to provide 20% less than the minimum number of parking spaces required under the current land development code (or 60% less than the code’s base ratios if there is no minimum parking capacity requirement)? Yes. WE1. Will the project include on-site renewable energy generation to offset at least 1% of building electricity consumption? Unknown at this time. WE2. Will the project include one or more of the following reclaimed water systems: large scale cisterns, onsite grey or blackwater treatment, and reuse or utilization of Austin Water Utility's auxiliary water system to eliminate the use of potable water on landscape/irrigation? Yes. the project will utilize/extend the City of Austin reclaimed water (purple pipe) system to reduce potable water use for landscaping areas. LU1. Is the proposed project site located within one of the centers or corridors as defined in the Imagine Austin Comprehensive Plan Growth Concept Map? Yes. This project is located within one of the identified Town Centers in the Imagine Austin Comp Plan. LU2. If located in an Imagine Austin activity center or corridor, will the proposed project use at least 90% of its entitled amount of floor-to-area ratio? Yes. F1. Will the project include a full service grocery store onsite, or is one located within 1 mile of the project, or will the project integrate opportunities for agriculture to the scale as defined by Austin Energy Green Building? Full service grocery stores are a permitted use within the project. The final site plan and land uses have not been determined at this time. M1. Will the project reuse or deconstruct existing buildings on the project site? No. 50 of 54B-073 of 351 of 54B-073 of 352 of 54B-073 of 353 of 54B-073 of 354 of 54B-073 of 3