Item 2- DWPZ CIP Memo — original pdf

Backup

Memorandum To: Boards and Commissions From: Shay Ralls Roalson, Director, Austin Water Date: March 30, 2024 Subject: Board and Commission and Citizen Review of new Growth-related Capital Improvement Projects in Drinking Water Protection Zone The Austin City Council approved an amendment to Austin Water’s (AW) Financial Policy No. 8 to provide for enhanced Board and Commission and citizen reviews of AW’s new growth-related capital improvement projects (CIP) located in the Drinking Water Protection Zone (DWPZ). The previous ordinance (No. 20130117-017) took effect on January 28, 2013 and on August 11, 2021 ordinance (No. 20210811-001) amended the DWPZ financial policy. AW is presenting the new growth-related projects to Boards and Commissions as set forth in the ordinance. The revised Financial Policy No. 8 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. Austin Water Infrastructure Management Financial Policy No. 8 Drinking Water Protection Zone Projects Summary FY25-29 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 FY25-29 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. Table 1. Austin Water FY25-29 Capital Improvement Program Spending Plan Summary for Projects Located in the DWPZ per Financial Policy No. 8 Subproject Service FY25 FY26 FY27 FY28 FY29 1) Southwest Parkway Southwest B Elevated Reservoir (2127.016) 2) Marshall Tract (3353.127) 3) Davis Medium Service Water Transmission Main (6935.001) Water $1.03M $3.79M $7.57M $4.52M $1.84M $18.74M Water $6.07M $0.00M $0.00M $0.00M $0.00M $6.07M Water $3.80M $3.80M $3.80M $3.80M $3.80M $19.00M 4) Southwest Parkway Transmission Main Water $0.40M $0.63M $0.57M $3.80M $3.21M $8.59M FY25-29 Spending Plan (6935.025) (3168.057) 5) Spicewood Springs Road Regional Water $3.34M $3.34M $1.83M $0.00M $0.00M $8.51M Mobility Improvements (11880.001) 6) Rock Harbour Lift Station Improvements Wastewater $0.70M $0.31M $0.00M $0.00M $0.00M $1.01M 7) South Area Lift Station Improvements: Wastewater $0.34M $0.00M $0.00M $0.00M $0.00M $0.34M Barton Creek Plaza (3168.076) 8) Northwest Area Lift Station Improvements: Boulder Lane Lift Station 9) Barrington Oaks Downstream Gravity Improvements Phase 2 (6943.041) 10) Boulder Lane at Crossland Drive Wastewater Improvements (6943.087) * new to 5YR plan Wastewater $1.29M $1.36M $1.36M $0.71M $0.54M $5.26M Wastewater $0.00M $0.00M $0.02M $0.20M $0.34M $0.56M Wastewater $0.00M $0.00M $0.01M $0.03M $0.12M $0.16M FY25-29 Spending Plan TOTAL: $68.24M Revised 3/15/2024 Austin Water Infrastructure Management Financial Policy No. 8 Drinking Water Protection Zone Projects Summary FY25-29 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 3/15/2024 Austin Water Infrastructure Management Financial Policy No. 8 Drinking Water Protection Zone Projects Summary FY25-29 CIP Plan Development Table 2. 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) Southwest Parkway Southwest B Elevated Reservoir (2127.016) Construct a 2-million gallon elevated reservoir on Southwest Pkwy near Amarra Drive. FY25-29 Spending Plan $18.74M FY30+ Spending Plan $0.06M Total $18.80M 2) Marshall Tract (3353.127) Cost reimbursement project located at 1300 Lost Creek Blvd for $6.07M $0.00M $6.07M elevated water reservoir and approximately 4,000 feet of 16-inch water main. Davis Water Treatment Plant flows are limited into the Central Pressure Zone transmission system. Additional transmission capacity is needed to meet additional system demands and increase system resiliency. 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. 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. 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. Improvements to the Barton Creek Plaza Lift Station that will enable it to better handle existing flow. 3) Davis Medium Service Water Transmission Main (6935.001) 4) Southwest Parkway Transmission Main (6935.025) 5) Spicewood Springs Road Regional Mobility Improvements (11880.001) 6) Rock Harbour Lift Station Improvements (3168.057) 7) South Area Lift Station Improvements: Barton Creek Plaza (3168.076) 8) Northwest Area Lift Station Improvements: Boulder Lane Lift Station (3168.085) 9) Barrington Oaks Downstream Gravity Improvements Phase 2 (6943.041) 10) Boulder Lane at Crossland Drive Wastewater Improvements (6943.087) 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. 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. 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. * new to 5YR plan $19.00M $170.05M $189.05M $8.59M $1.14M $9.73M $8.51M $0.00M $8.51M $1.01M $0.00M $1.01M $0.34M $8.26M $8.60M $5.26M $0.25M $5.51M $0.56M $3.46M $4.02M $0.16M $0.04M $0.20M Revised 3/15/2024