STRATEGIC PRIORITY: Sustainable
AGENDA DATE: April 9, 2025
COUNCIL DISTRICT(S): 5
DEPARTMENT: Dallas Water Utilities Department
EXECUTIVE: Dev Rastogi
______________________________________________________________________
SUBJECT
Title
Authorize Supplemental Agreement No. 1 to the professional services contract with Garver, LLC to provide additional engineering services for improvements to the Lake June Pump Station and Reservoir - Not to exceed $4,806,075.38, from $3,399,822.00 to $8,205,897.38 - Financing: Water 2022C Water TWDB L1001533 Fund ($4,500,000.00) and Water Capital Improvement F Fund ($306,075.38)
Body
BACKGROUND
The June 2019 Condition Assessment of Pump Stations, Ground Storage Reservoirs, and Elevated Tanks recommended replacement of Lake June Pump Station (PS), ground storage reservoir, and associated transmission piping. The report ranked Lake June PS as the most critical pump station of the Dallas Water Utilities’ (DWU) 14 potable water pump stations. Lake June PS has a firm capacity of 360 million gallons per day (MGD), was constructed in 1960, and is located at 1031 Algonquin Drive, Dallas Texas 75217. It delivers potable water to three separate pressure planes in South Dallas and is the only source for the Cedardale Pressure Plane. The report noted much of the infrastructure is well beyond its useful life with significant structural defects.
On June 28, 2023, the City Council authorized a professional services contract with Garver, LLC for the Lake June Pump Station and Reservoir Replacement project to provide preliminary engineering services for the new Lake June PS, new ground storage tanks, transmission piping improvements, electrical improvements, and miscellaneous system improvements. Engineering services were intended to be executed through an initial professional services agreement followed by supplemental agreements as needed to complete the final design and construction improvements. The scope of services for the initial agreement included preliminary engineering for the pump station and reservoir replacement.
Garver evaluated alternatives for the replacement of the Lake June PS and reservoir during the preliminary design and developed recommendations considering criticality, benefits, capital cost, and life cycle costs. The recommended approach involves separating the improvements into two construction packages. Construction Package A includes new ground storage tanks, transmission piping improvements, and demolition of the existing reservoir and ancillary facilities. Construction Package B will cover the remaining improvements including a new pump station, electrical improvements, tie-ins to the water distribution system, demolition of the existing pump station and ancillary facilities. The final design for Package A will be completed and advertised for construction in summer 2025. Package B will be advertised for construction after Package A is fully completed.
This action will authorize a supplemental agreement to complete the final design for Construction Package A and provide bidding and construction phase services. A future supplemental agreement will be necessary to provide final design services for Construction Package B, bidding and construction services for Construction Package B, and startup and commissioning services for both construction packages.
ESTIMATED SCHEDULE OF PROJECT
Begin Services May 2025
Complete Services May 2028
PRIOR ACTION/REVIEW (COUNCIL, BOARDS, COMMISSIONS)
On June 28, 2023, the City Council authorized a professional services contract with Garver, LLC., to provide engineering services for the Lake Pump Station and Reservoir Replacement Project, by Resolution No. 23-0924.
FISCAL INFORMATION
|
Fund |
FY 2025 |
FY 2026 |
Future Years |
|
Water 2022C Water TWDB L1001533 Fund |
$4,500,000.00 |
$0.00 |
$0.00 |
|
Water Capital Improvement F Fund |
$ 306,075.38 |
$0.00 |
$0.00 |
|
Total |
$4,806,075.38 |
|
|
Original Contract $3,399,822.00
Supplemental Agreement No. 1 (this action) $4,806,075.38
Project Total $8,205,897.38
M/WBE INFORMATION
In accordance with the City’s Business Inclusion and Development Policy adopted on September 23, 2020, by Resolution No. 20-1430, as amended, the M/WBE participation on this contract is as follows:
|
Contract Amount |
Procurement Category |
M/WBE Goal |
|
$4,806,075.38 |
Architecture & Engineering |
34.00% |
|
M/WBE Subcontracting % |
M/WBE Overall % |
M/WBE Overall Participation $ |
|
33.32% |
33.32% |
$1,601,296.80 |
|
• This contract does not meet the M/WBE goal, but complies with good faith efforts. |
|
• Garver LLC - Local; Workforce - 58.82% Local |
OWNER/EXECUTIVE
Garver, LLC
Brock Hoskins, Chief Executive Officer
MAP
Attached