B10 — original pdf

Backup

Water & Wastewater Commission Review and Recommendation Health and Environment COA Strategic Direction: October 14, 2020 Commission Meeting Date: Council Meeting Date: Department: Capital Contracting October 29, 2020 Client: Kevin Koeller, Shay Roalson, Michael Deas Agenda Item Recommend approval to execute change order No. 14 in an amount not to exceed $825,157.76 to the construction contract with SJ Louis Construction of Texas, Ltd., for the Parmer Lane Interceptor project, plus an additional contingency in the amount of $300,000, for a total contract amount not to exceed $28,549,489.76. (District 6) Funding is available in the Fiscal Year 2020-2021 Capital Budget of Austin Water. Amount and Source of Funding Original contract was awarded through a competitive Invitation for Bid solicitation process. December 1, 2016 – Council approved a construction contract with SJ Louis Construction of Texas, LTD., for the Parmer Lane Interceptor project. October 14, 2020 — To be reviewed by the Water and Wastewater Commission. This change order will be executed in compliance with City Code 2-9B (Minority Owned and Women Owned Business Enterprise Procurement Program). Current participation to date is 5.33% MBE and 1.44% WBE. Purchasing Language: Prior Council Action: Boards and Commission Action: MBE/WBE: The Parmer Lane Interceptor project involves the installation of over two miles of 42- inch diameter wastewater pipeline along Parmer Lane between Anderson Mill and McNeil Roads to better protect the public health and the environment and reduce operating expenses by removing aged and underperforming wastewater facilities. Once installed, wastewater will flow by gravity to the Walnut Creek wastewater treatment plant, enabling the decommissioning of the Lake Creek and Rattan Creek lift stations which will increase reliability and lower operation and maintenance requirements. Prior change orders have been required due to in-situ conditions differing from predicted conditions, which resulted in substantially slower than expected tunneling and excavation progress. Increased wastewater flows due to population growth, a more conservative modeling approach, and an optimized tie-in design have increased the quantity and duration of bypass pumping required to connect the new wastewater main and decommission existing lift stations. Change order No. 13 allows for the successful integration of the Parmer Lane Interceptor into the existing wastewater system, as well as capturing additional costs associated with a culvert installation, COVID-19 delays, and an auxiliary sanitary sewer line. Beyond change order No. 13, the need for additional project contingency is due to the potential of additional unforeseen conditions and will allow for the expeditious processing of any additional change orders. The construction is occurring entirely within City property and Austin Water permanent and temporary easements. This project has minimal impact to the public. If council does not approve this item, the Parmer Lane Interceptor will be unable to be placed in operation. The contract allows 1,410 calendar days for completion of this project. This project is located within zip code 78729 and 78727 (District 6). The project is being managed by the Public Works Department. SJ Louis Construction of Texas, Ltd. is located in Mansfield, Texas. M/WBE Summary Participation goals stated in the original approved compliance plan were 1.06% African American; 2.96% Hispanic; 0.29% Native/Asian; and 0.81% WBE. The participation for Change Order #14 in an amount of $825,157.76: NON M/WBE TOTAL – PRIME SJ Louis Construction Of Texas, Ltd., Mansfield, TX MBE TOTAL – SUBCONTRACTORS WBE TOTAL – SUBCONTRACTORS NON M/WBE TOTAL – SUBCONTRACORS Superior Pump Solution, LLC, San Antonio, TX Overall participation based on contract expenditures as of October 1, 2020 (not including this change order): $ 649,032.76 $ 649,032.76 $ 176,125.00 $ 176,125.00 (Bypass Pumping) $ 0 $ 0 78.66% 78.66% 0% 0% 21.34% 21.34% PRIME: 91.22% Non M/WBE SUBCONTRACTORS: 1.07% African American; 3.77% Hispanic; 0.49% Native/Asian; 1.44% WBE; and 2.01% Non M/WBE TOTAL: 1.07% African American; 3.77% Hispanic; 0.49% Native/Asian; 1.44% WBE; and 93.23% Non M/WBE AUTHORIZATION HISTORY AMOUNT DATE DESCRIPTION $24,878,484.00 $2,487,848.00 $58,000.00 $1,125,157.76 $28,549,489.76 Total Contract Authorization 12/01/16 12/01/16 12/01/16 10/29/20 Proposed (Council) – Change Order #13 for Bypass Pumping Operation (Council) – Construction contract for the Parmer Lane Interceptor Project (Council) – 10% Contingency (Administrative Authority) CONTRACT HISTORY AMOUNT $ 24,878,484.00 $0.00 $21,081.42 $295,416.90 $200,300.25 $117,021.23 $142,837.39 ($50,718.77) $74,072.10 $1,025,000.00 $102,600.00 $225,000.00 ($5,110.00) $825,157.76 DATE DESCRIPTION (CO%/CUMULATIVE CO%) 12/22/16 Construction contract for the Parmer Lane Interceptor Project 04/11/17 CO #1 – Time Extension due to accelerated NTP (0.00%/0.00%) 07/31/17 CO #2 – Utility Connection Costs in Excess of Allowance (0.08%/0.08%) 10/18/17 CO #3 – Upper Walnut Creek Differing Site Condition (1.19%/1.27%) 11/30/17 CO #4 – North Walnut Creek Shaft Differing Site Condition (0.81%/2.08%) 12/14/17 CO #5 – North Walnut Creek Tail Tunnel Differing Site Condition (0.47%/2.55%) 05/29/18 CO #6 – Rattan Shaft Differing Site Condition (0.57%/3.12%) 06/19/19 CO #7 – Credit for Rattan Rd not being Constructed (-0.20%/1.92%) 12/10/19 CO #8 – Additional Electrical Utility Relocation (0.30%/3.22%) 02/05/20 CO #9 – Settlement for Tunnel Differing Site Condition (4.12%/7.34%) 06/03/20 CO #10 – Pipe Grout Port Installation (0.41%/7.75%) 07/09/20 CO #11 – Shaft Water Inflow Mitigation and Pumping (0.90%/8.65%) 08/03/20 CO #12 – Tunnel Water Inflow Mitigation and Allowance Deletion (-0.02%/8.63%) Proposed Council – CO #13 – Bypass Pumping Operation $27,851,142.28 Total Contract History Parmer Lane Interceptor Council District 6