8e. Memo

Potable Water Box Replacement

AGENDA MEMORANDUM                        Item No.          8e 
ACTION ITEM                            Date of Meeting       May 23, 2023 

DATE:     May 11, 2023 
TO:        Stephen P. Metruck, Executive Director 
FROM:    Keri Stephens, Director, Aviation Facilities and Capital Programs 
Eileen Francisco, Director, Aviation Project Management 
SUBJECT:  Potable Water Box Replacement (C801187) Project Authorization 
Amount of this request:               $2,497,000 
Total estimated project cost:          $2,547,000 

Request a single Commission Authorization for the Executive Director to proceed with design and
construction for the Potable Water Box Replacement project and advertise and execute a major
works construction contract. This is a single request for $2,497,000 of a total estimated project
cost not to exceed $2,547,000. 
Potable water boxes are located next to passenger loading bridges and supply aircraft with
potable water required for restrooms, ice, and other uses while in flight. This project will replace
9 potable water boxes that are currently beyond their useful life on Concourses C and D. 
Replacement boxes are larger and require two electrical connections. Design will ensure the
boxes have the proper anchors, stands, and connections. In addition, the project will ensure
proper heat trace on piping to prevent freezing during cold weather. The new boxes include
increased safety features, such as chain guards, to improve worker safety when using the
equipment. This request is for design and construction authorization in the amount of $2,497,000
of an estimated project cost not to exceed $2,547,000. 
This project will increase reliability by replacing potable water boxes that are beyond their useful 
life. If a water box fails airlines will need to either use an adjacent box or use a water truck. In
addition, the new water boxes have chain guards on the large chain that pulls the hose back into
the box, which improves worker safety. 

Template revised January 10, 2019.

             COMMISSION AGENDA – Action Item No. 8e                                  Page 2 of 4 
Meeting Date: May 23, 2023 
Diversity in Contracting 
This project will be using an existing IDIQ contract for design that was established in 2022. The
contract includes a 16% women-and-minority-owned business enterprise (WMBE) participation
utilization requirement. The project team will work with Diversity in Contracting Department to
determine participation opportunities and appropriate aspirational goals for WMBE for the
construction phase of the project. 
This project will replace 9 potable water boxes that are beyond their useful life to reduce the risk
of failure. This project includes ensuring there is heat trace on the supply piping to reduce the
risk of freezing; replacing stands; foundation work as necessary; and any other work required to
ensure proper functioning of the water boxes and compliance with current building code. 
Scope of Work 
Work will include a replacement of the potable water boxes and includes: 
(1) The potable water box; 
(2) The water box stand; 
(3) Electrical connections; 
(4) Heat trace on supply pipes; 
(5) Foundation and backflow preventors as needed; and 
(6) Any other work required to ensure the potable water boxes operate safely and meet
current building code. 
Commission design and construction authorization   2023 Quarter 2 
Design start                                            2023 Quarter 2 
Construction start                                     2024 Quarter 4 
In-use date                                            2025 Quarter 3 
Cost Breakdown                                     This Request           Total Project 
Design                                                    $575,000               $625,000 
Construction                                             $1,922,000             $1,922,000 
Total                                                         $2,497,000              $2,547,000 
This is a renewal and replacement project. This project is not adding any new potable water

Template revised June 27, 2019 (Diversity in Contracting).

             COMMISSION AGENDA – Action Item No. 8e                                  Page 3 of 4 
Meeting Date: May 23, 2023 
Alternative 1 – Status quo. Replace water boxes as they fail. 
Cost Implications: Expense notebook funds 
(1)   Reducing capital expenditure in the short term. 
(1)   Does not provide reliable infrastructure for airline use. 
(2)   Does not increase worker safety. 
(3)   Will have long outages of water boxes. 
This is not the recommended alternative. 
Alternative 2 – Replace 9 potable water boxes that are at the end of their useful life. 
Cost Implications: $2,547,000 in capital costs. 
(1)   Provides reliable infrastructure for airline use. 
(2)   Increases worker safety by providing chain guards. 
(3)   Reduces the risk of equipment failure and need for emergency repairs. 
(1)   Requires capital spending. 
This is the recommended alternative. 
Cost Estimate/Authorization Summary              Capital        Expense           Total 
Original estimate                                 $2,203,000               $0      $2,203,000 
Current change                                  $344,000               0       $344,000 
Revised estimate                                $2,547,000               0      $2,547,000 
Previous authorizations                             $50,000                0         $50,000 
Current request for authorization                $2,497,000                0      $2,497,000 
Total authorizations, including this request       $2,547,000                0      $2,547,000 
Remaining amount to be authorized                    $0             $0             $0 

Template revised June 27, 2019 (Diversity in Contracting).

             COMMISSION AGENDA – Action Item No. 8e                                  Page 4 of 4 
Meeting Date: May 23, 2023 
Annual Budget Status and Source of Funds 
The Potable Water Box Replacement (C801187) is included in the 2023-2027 capital budget and
plan of finance with a budget of 2,203,000. The capital budget increase of $344,000 was
transferred from the Aeronautical Allowance CIP C800753 resulting in no net change to the
Airport capital budget. The funding sources will be the Airport Development Fund and existing
revenue bonds. 
Financial Analysis and Summary 
Project cost for analysis              $2,547,000 
Business Unit (BU)                  Airfield Apron Area 
Effect on business performance     NOI after depreciation will increase due to inclusion of
(NOI after depreciation)             capital (and operating) costs in airline rate base. 
IRR/NPV (if relevant)                N/A 
CPE Impact                       $0.01 in 2026 

Template revised June 27, 2019 (Diversity in Contracting).


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