140R6023R0013_Pre-bid_Site_Visit__(10-25-2023)_0002.pdf

Organized Site Visit Request For Proposal

Solicitation No.

140R6023R0013

U.S. Department of the Interior Bureau of Reclamation Missouri Basin Region

Billings, Montana

AVC Injection Site Phase 1 and Backflow Preventer Site

• Reclamation Team

• Acquisition Key Dates

• Technical Overview

• Acquisition Closing Statement

• Site Visit - Tyler Artichoker

Agenda

• Jessica Busman – Contracting Specialist

• Ryan Kent - Lead Design Engineer

• Tyler Artichoker – Contracting Officer Representative

Reclamation Team

• Request for Proposal Issued : September 21, 2023

• Site visit : October 25, 2023

• Questions due : November 7, 2023 1pm MST

• ALL questions must be submitted to CO/CS

• Proposals due : November 30, 2023 1 pm MST

• Request kiteworks link to submit proposals: Jessica Busman @ jbusman@usbr.gov

Acquisition Key Dates mailto:jbusman@usbr.gov

Overview of Location

Overview of Location

Overview of Purpose Backflow Preventer Site

• Incoming water is treated by Pueblo Water (PW) and conveyed into their distribution system; this project will tie into PW’s distribution system at Connection Point 1.

• To separate AVC’s water transmission system from PW’s system, a Backflow Preventer is required (a series of above ground RPPA valves in this case).

• Connection Point 1, RPPA valves, and associated pipe installation is covered under the Backflow Preventer Site work.

8 Dwg 382-D-60408

Drawing

Overview of Purpose Injection Site

• PW uses chloramines as a disinfectant in their distribution system. Two main factors require the removal of chloramines:

• Communities to be served with this water use free chlorine as their disinfectant method, which cannot be mixed with chloramines.

• Disinfectant staying in the water for such a long distant transmission to future participants would lead to water quality issues with “Disinfectant By-Products”.

• The Injection Site adds Sodium Hypochlorite to remove the chloramines and Sodium Bisulfite to remove any remaining free chlorine before being transmitted downstream.

10 Dwg 382-D-60404

Drawing

Overview of Key Work

• Chemical Building

• Pre-Engineered Metal Building with shallow foundation and electrical/mechanical systems.

• Chemical storage rooms, treatment floor, fire riser room, SCADA/Electrical, and misc.

• Large concrete placements for thrust blocks, chemical containment areas, and access pits.

• Chemical Injection

• Chemicals involved are Sodium Hypochlorite and Sodium Bisulfate.

• Above ground manifold with various pipe sizes (between 3” and 12”) and valves.

• Chemical injection includes pumps, storage tanks, mixers, SCADA system, analyzers, etc.

• Line Pipe and Buried Manifold Pipe

• 12” to 48” dia. pipe using epoxy coated steel pipe, HDPE, and specialized Al-6XN alloy.

• Several transitions between these sizes and pipe types.

• Injection Site Grading with Stormwater Detention Pond

• Unlined detention pond with concrete outlet wall.

• Gravel surfacing and seeding.

• Backflow Preventer Site includes

• Above-ground enclosure.

• RPPA assemblies and various valves.

• Buried 30” Line pipe with tie-in to two existing pipelines (PW’s Ductile Iron

Pipe and AVC Boone Reach 1’s HDPE pipe).

• Some general roadway work including asphalt and guardrail installation.

• Commissioning/Testing/Disinfection

• Testing of pipe at both Injection Site and Backflow Site

• Disinfection of entire pipeline between U/S connection point and D/S end (approx. 10.5 miles) including injection site and participant spur lines (4" and 6“ pipelines).

• AWWA C651

• Commissioning will consist of several phases prior to water being delivered to participants.

• SCADA

• Will not tie into any outside Bureau of Reclamation servers or system.

• Controls and monitors all automated equipment including analyzers, alarms, pump, valves and various types of transmitters on site, as well as delivery vaults miles away from the site.

• All fiber work on this contract is located at the Injection Site.

Specifications Section 01 14 12 – Work Restrictions and Limitations

• Connecting to Pueblo Water (PW) Distribution System:

• Close coordination required with PW before and during planned tie-in with their system.

• Coordination with other Contractors:

• Shared access to the Injection Site with another Contractor until March 28, 2025.

• Portion of the Injection Site land will also be occupied by the other Contractor, which will prevent it from being used as a Use Area or construction of permanent features in the area until after March 28, 2025.

• Backflow Preventer Site will have another Contractor using the area and Construction at this site cannot start until after March 28, 2025.

• Another Contractor will be installing a fiber splice vault on the NE corner of the Injection Site.

This contract requires the splice to be made in that vault.

Specification Requirement Emphasis

Specifications Section 01 51 00 – Temporary Utilities

• Temporary electric power for construction will be the responsibility of the Contractor and is available onsite through Black Hills Energy.

• The Government will be responsible for purchasing the permanent transformer and coordinating its installation.

• Contractor shall use this transformer for all final testing and commissioning, but not for prior activities.

• Temporary water for construction will be the responsibility of the Contractor and can come from any source (available from PW).

• Water used for Disinfection and Commissioning activities must come from PW via Connection Point 1 through the trunkline.

Specifications Section 01 91 13 – Testing, Disinfection, and Commissioning

• Contractor required to perform all work for component installation, water and chemicals used, and operations for all three facets.

• Government will collect water samples and monitor treatment process performance during the Water Treatment Commissioning phase.

Specifications Section 35 21 95 – Steel and Stainless-Steel Manifold Piping

• A specialized alloy, Al-6XN (UNS N08367), is required for a manifold that is placed in the

Chemical Building’s concrete foundation.

• Per our previous research, this alloy has a long lead time.

Project Stakeholder Involvement Primary Stakeholders/Agencies involved in the project include:

• Southeastern Colorado Water Conservancy District

• Future operators of facilities

• Will be involved in training and commissioning activities

• Pueblo Water

• Water provider for the project.

• Contractor to coordinate at several key times, such as when tying into their system

(Connection Point 1).

• Colorado Department of Public Heath and Environment (CDPHE)

• Contractor to obtain permits regarding air quality.

• Government will lead all coordination with CDPHE on approvals to deliver water to customers. Contractor to support Government with requested information.

• ALL questions submitted to CO/CS

• Track RFP on SAM.gov for any updates

• Site Visit – presentation and sign-in issued as an amendment

• Follow proposal instruction in Section L

Acquisition Closing Statement

Thank you for attending the Bureau of Reclamation’s Organized Site Visit.

Site Visit –Tyler Artichoker ****Site Photos In Specification Section 51 00 90