Item 2- Drinking Water Protection Zone Memo — original pdf

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Memorandum To: Boards and Commissions From: Shay Ralls Roalson, Director, Austin Water Date: June 6, 2025 Subject: Board and Commission and Citizen Review of new Growth-related Capital Improvement Projects in Drinking Water Protection Zone In accordance with Austin Water’s (AW) Financial Policy No. 8, which is adopted by City Council annually as part of the annual budget adoption process, AW is providing a report of new growth-related capital improvement projects (CIP) located in the Drinking Water Protection Zone (DWPZ). The financial policy, which requires certain Board and Commission review of applicable projects, reads as follows: Capital improvement projects for new water and wastewater treatment plants, capital expansions, and growth-related projects that are located in the Drinking Water Protection Zone (DWPZ) will be identified and submitted, as part of the annual budget process, to the following Boards and Commissions: Water and Wastewater Commission, Resource Management Commission, and the Environmental Board. These Boards and Commissions will review growth-related DWPZ capital projects spending plans, obtain Board and Commission and citizen input, review consistency with Imagine Austin Comprehensive Plan, review effect on growth within the DWPZ, and make recommendations on project approval for inclusion in Austin Water's five-year capital spending plan. This summer, AW representatives will be distributing a brief report to the Commissions on the CIP projects located in the DWPZ related to the financial policy. Attachments: CIP Subprojects Summary CIP Subprojects Supplemental Information and Map The City of Austin is committed to compliance with the Americans with Disabilities Act. Reasonable modifications and equal access to communications will be provided upon request. Item 2Austin Water Infrastructure Management Financial Policy No. 8 Drinking Water Protection Zone Projects Summary FY26-30 CIP Plan Development Each year, as part of the City of Austin Budget approval process, Austin Water submits a plan for the capital improvements program (CIP) spending for the upcoming five-year period. Austin Water’s FY26-30 CIP Plan includes projects located across the Austin metropolitan area, including the Drinking Water Protection Zone (DWPZ). In compliance with Austin Water’s Financial Policy No. 8, the capital improvement projects for new water and wastewater treatment plants, capital expansions, and growth related projects that are located in the DWPZ are presented below for consideration by City of Austin Boards and Commissions. These projects represent improvements required to meet Austin Water standards for operability and customer service. While additional capacity may be added in accordance with current design standards, the intent of these projects is to meet the demands of existing or agreed upon future customers rather than promoting additional growth. A map showing specific project locations is provided along with additional project information in the appendix. Revised 5/19/2025 Austin Water Infrastructure Management Financial Policy No. 8 Drinking Water Protection Zone Projects Summary FY26-30 CIP Plan Development Table 1. Austin Water FY26-30 Capital Improvement Program Spending Plan Summary for Projects Located in the DWPZ per Financial Policy No. 8 Subproject Service FY26 FY27 FY28 FY29 FY30 FY26-30 Spending Plan 1) Davis WTP Medium Service Pump Station Expansion (2015.118)* 2) Southwest Parkway Southwest B Elevated Reservoir (2127.016) 3) Rock Harbour Lift Station Improvements (3168.057) 4) South Area Lift Station Improvements: Barton Creek Plaza (3168.076) 5) Northwest Area Lift Station Improvements: Boulder Lane Lift Station (3168.085) 6) TxDOT Loop 360 at Westlake Drive Water & Wastewater Relocation (3212.178)* 7) Marshall Tract (3353.127) 8) Davis Medium Service Water Transmission Main (6935.001) 9) Southwest Parkway Transmission Main (6935.025) 10) Small Diameter Waterline Replacement Program IDIQ (6935.088)* 11) Barrington Oaks Downstream Gravity Improvements Phase 2 (6943.041) $0.00M $0.00M $1.78M $1.23M $1.00M $4.01M $0.58M $1.35M $8.84M $6.87M $0.21M $17.84M $0.07M $0.00M $0.00M $0.00M $0.00M $0.07M $0.15M $0.15M $0.00M $0.00M $0.00M $0.30M $3.82M $1.56M $0.00M $0.00M $0.00M $5.38M Water Water Wastewater Wastewater Wastewater Water $0.34M $0.00M $0.00M $0.00M $0.00M $0.34M Water $1.85M $9.73M $0.00M $0.00M $0.00M $11.58M Water $1.20M $3.80M $3.80M $3.80M $2.95M $15.55M Water $0.78M $0.29M $3.41M $4.51M $1.14M $10.12M Water $0.25M $0.25M $0.02M $0.00M $0.00M $0.52M Wastewater $0.00M $0.00M $0.00M $0.02M $0.20M $0.22M 12) Eanes Wastewater Replacement Wastewater $0.00M $0.00M $0.00M $0.00M $0.07M $0.07M (6943.072)* 13) Boulder Lane at Crossland Drive Wastewater Improvements (6943.087) 14) Spicewood Springs Road Regional Mobility Improvements (11880.001) 15) South Lamar Boulevard Corridor: Barton Springs Road to US 290 (11887.003)* * new to 5YR plan Wastewater $0.00M $0.00M $0.00M $0.00M $0.01M $0.01M Water $3.24M $1.39M $0.00M $0.00M $0.00M $4.63M Water $1.62M $1.62M $1.62M $1.62M $1.62M $8.08M FY26-30 Spending Plan TOTAL: $78.73M Revised 5/19/2025 Austin Water Infrastructure Management Financial Policy No. 8 Drinking Water Protection Zone Projects Summary FY26-30 CIP Plan Development Per Council Ordinance 970905-A, effective September 5, 1997: APPENDIX “Drinking Water Protection Zone means the areas within the Barton Springs Zone, the Barton Creek Watershed, all Water Supply Rural Watersheds, and all Water Supply Suburban Watersheds that are in the City’s planning jurisdiction.” Austin Water Financial Policy No. 8, effective January 28, 2013: “Capital improvement projects for new water and wastewater treatment plants, capital expansions, and growth-related projects that are located in the Drinking Water Protection Zone (DWPZ) will be identified and submitted, as part of the annual budget process, to the following Boards and Commissions: Water and Wastewater Commission, Resource Management Commission, and the Environmental Board. These Boards and Commissions will review growth-related DWPZ capital projects spending plans, obtain Board and Commission and citizen input, review consistency with Imagine Austin Comprehensive Plan, review effect on growth within the DWPZ, and make recommendations on project approval for inclusion in Austin Water Utility’s five-year capital spending plans.” Revised 5/19/2025 Austin Water Infrastructure Management Financial Policy No. 8 Drinking Water Protection Zone Projects Summary FY26-30 CIP Plan Development Table A1. Planning Phase new infrastructure projects in the Austin Water Capital Improvement Program Plan Proposal impacting the City of Austin Drinking Water Protection Zone. Subproject Subproject Description 1) Davis WTP Medium Service Pump Station Expansion (2015.118)* 2) Southwest Parkway Southwest B Elevated Reservoir (2127.016) 3) Rock Harbour Lift Station Improvements (3168.057) 4) South Area Lift Station Improvements: Barton Creek Plaza (3168.076) 5) Northwest Area Lift Station Improvements: Boulder Lane Lift Station (3168.085) 6) TxDOT Loop 360 at Westlake Drive Water & Wastewater Relocation (3212.178)* Construct a 2-million gallon elevated reservoir on Southwest Pkwy near Amarra Drive. The Southwest B Pressure Zone has one reservoir serving approximately 7,000 customers. An additional reservoir located on Southwest Pkwy and associated transmission main, is required to provide storage and resiliency in the pressure zone. Flows at Rock Harbour have exceeded the design capacity, and it is at risk of wet weather overflows. This project will increase the firm capacity and address operations and maintenance concerns as identified by the Northwest Lift Station Study. Construct 3,700 linear feet of 24-inch water main along Southwest Pkwy from Terravista Dr. west to a new elevated reservoir. Construct 6,600 linear feet of 24-inch water main along Old Bee Caves Rd. and Travis Cook Rd to the new elevated reservoir. Flows at Boulder Lane have exceeded the design capacity, and it is at risk of wet weather overflows. This project will increase the firm capacity and address operations and maintenance concerns as identified by the Northwest Lift Station Study. Flows at Rock Harbour Lift Station have exceeded design capacity and is at risk of wet weather overflows. This project will increase the firm capacity and address operations and maintenance concerns as identified by the Northwest Lift Station Study. FY26-30 Spending Plan $4.01M FY31+ Spending Plan $40.58M Total $44.60M $17.84M $0.83M $18.67M $0.07M $0.00M $0.07M $0.30M $8.32M $8.62M $5.38M $0.00M $5.38M $0.34M $0.00M $0.34M 7) Marshall Tract (3353.127) Cost reimbursement project located at 1300 Lost Creek Blvd for $11.58M $0.00M $11.58M 8) Davis Medium Service Water Transmission Main (6935.001) 9) Southwest Parkway Transmission Main (6935.025) 10) Small Diameter Waterline Replacement Program IDIQ (6935.088)* 11) Barrington Oaks Downstream Gravity Improvements Phase 2 (6943.041) elevated water reservoir and approximately 4,000 feet of 16-inch water main. Flows at Boulder Lane Lift Station have exceeded design capacity and is at risk of wet weather overflows. This project will increase the firm capacity and address operations and maintenance concerns as identified by the Northwest Lift Station Study. The Southwest B Pressure Zone has one reservoir serving approximately 7,000 customers. An additional reservoir located on Southwest Pkwy and associated transmission main, is required to provide storage and resiliency in the pressure zone. Austin Water coordinates with private projects and often in these redeveloped areas the water mains are less than 6-inches in diameter. These undersized mains typically cannot provide the increased demands required by the new development. Replace and upsize existing 12-inch gravity line from manhole 114641 to manhole 42304 to increase capacity. The existing line is in poor condition and reaching capacity limitations. The project length is approximately 3,000 linear feet. $15.55M $169.10M $184.65M $10.12M $0.00M $10.12M $0.52M $0.00M $0.52M $0.22M $3.80M $4.02M *new to 5YR plan 12 Eanes Wastewater ReReplace approximately 3400 linear feet of 8-inch waste 13 Boulder Lane at CrossA segment of 8-inch wastewater pipe at Boulder Ln. and 72461 2342899 2415360 200000 190000 10000 Revised 5/19/2025 Austin Water Infrastructure Management Financial Policy No. 8 Drinking Water Protection Zone Projects Summary FY26-30 CIP Plan Development Table A1. Continued Planning Phase new infrastructure projects in the Austin Water Capital Improvement Program Plan Proposal impacting the City of Austin Drinking Water Protection Zone. Subproject Subproject Description 12) Eanes Wastewater Replacement (6943.072)* 13) Boulder Lane at Crossland Drive Wastewater Improvements (6943.087) 14) Spicewood Springs Road Regional Mobility Improvements (11880.001) 15) South Lamar Boulevard Corridor: Barton Springs Road to US 290 (11887.003)* *new to 5YR plan Replace approximately 3400 linear feet of 8-inch wastewater line with 12-inch. A segment of 8-inch wastewater pipe at Boulder Ln. and Crossland Dr. needs to be upsized to provide capacity for existing flow and approved development and to prevent overflows in an environmentally sensitive area. The project includes design and construction of improvements that may include a roadway expansion from two lane section to a four lane divided roadway, signals, medians, waterlines, bicycle and pedestrian facilities, and driveway reconstruction. Design and construction of projects including bicycle and pedestrian facilities, intermittent medians, intersection improvements, new and upgraded traffic signals, bus stops, water, wastewater and storm drain improvements. FY26-30 Spending Plan $0.07M FY31+ Spending Plan $2.34M Total $2.42M $0.01M $0.19M $0.20M $4.63M $0.00M $4.63M $8.08M $3.03M $11.11M Revised 5/19/2025 Northwest Area Lift 3168.085 Station Lane Lift Station Improvements: Boulder 6943.087 Boulder Lane Drive at Crossland Wastewater Improvements Barrington 6943.041 Oaks Downstream Improvements Phase Gravity 2 11880.001 Springs Mobility Spicewood Road Regional Improvements Small Diameter Replacement 6935.088 Waterline *Program IDIQ 6935.001 Davis Water Medium Service Main Transmission *2015.118 Davis WTP Medium Service Pump Station Expansion Wastewater Replacement 3168.076 Station South Area Lift Improvements: Barton Creek Plaza ( 0 1.5 3 Miles *3212.178 TxDOT Loop Drive 360 at Westlake 3353.127 Marshall Tract 2127.016 Southwest B Parkway Southwest Reservoir Elevated Boulevard Springs Corridor: Road to US 290 Barton Parkway Southwest Main Transmission N A c::::J Impact Fee Boundary 1//1/1/, Outside Drinking Water Protection Zone Impact Fee Jurisdiction FY 26-30 CIP Development DWPZ Project Summary Austin - Wastewater - Water*New to 5yr Plan This map has been produced No warranty is made by the City regarding its accuracy or completeness. by the City of Austin for its needs and purposes and is not warranted for any other use. � Infrastructure Austin Management Prepared Division 5/19/2025 Water