Water Catchment: Request for Proposal bei Girl Scouts of Hawai'i

Request for Proposals (RFP)

Design and Construction of Roof Water Catchment System for Potable Water Supply at Camp Kilohana, Island of Hawai‘i

Issued by: Girl Scouts of Hawaii

Date Issued: October 13, 2025

Proposal Due Date: As soon as possible, with rolling consideration when at least 3 proposals are received

1. Introduction

Girl Scouts of Hawaii is soliciting proposals from qualified contractors to design, permit, and construct a roof-based water catchment system at Camp Kilohana (Baldwin Lodge). The system must provide a reliable source of potable water, meeting state and county health standards, and should include recommendations for roof cleaning, gutter installation or improvements, and maintenance to ensure long-term safety and functionality.

1. Scope of Work

The selected contractor will be responsible for:

A. Design

• Evaluate the existing building roof structure for suitability of catchment.
• Develop a system design that includes:
• Roof cleaning and preparation requirements (safe for potable water collection)
• Gutters, downspouts, and first-flush diverters
• Catchment tank(s), including appropriate size, location, and foundation
• Filtration and disinfection system (e.g., sediment filter, UV, chlorination)
• Pump and plumbing integration with existing water lines (if applicable)
• Provide stamped design drawings and specifications.

B. Construction & Installation

• Supply and install all necessary equipment, including gutters, tanks, filters, pumps, and plumbing.
• Conduct roof cleaning and surface preparation, including any recommended coatings or repairs.
• Install or replace gutters to optimize water collection efficiency.
• Connect system to potable water distribution as needed.
• Ensure compliance with all building, health, and environmental regulations.

C. Commissioning & Testing

• Test water quality to verify potability standards are met.
• Conduct performance testing of pumps, filters, and storage tanks.
• Provide training for staff on system operation and maintenance.

D. Documentation

• Provide a full system manual, including maintenance schedule and cleaning guidelines.
• Deliver warranties for equipment and workmanship.
• Submit required permits, approvals, and inspection sign-offs.

1. Contractor Qualifications

• Hold appropriate licenses for plumbing, roofing, and potable water system installation in the State of Hawaii (or relevant jurisdiction).
• Demonstrate prior experience with similar potable water catchment projects.
• Carry appropriate insurance (general liability, workers’ compensation).
• Provide three (3) references.

1. Proposal Requirements

• Copy of state licenses.
• Design concept and technical approach.
• Recommendations for roof cleaning, gutter work, and ongoing maintenance.
• Preliminary project timeline.
• Detailed cost estimate (materials, labor, permits, testing).
• Warranty and maintenance offerings.
• References.

1. Evaluation Criteria

• Experience and qualifications (25%)
• Design quality and compliance with potable water standards (25%)
• Project approach and methodology (20%)
• Cost competitiveness (20%)
• References and past performance (10%)

1. Timeline

• RFP Issued: October 13, 2025
• Site Visits: to be arranged with GSH as needed
• Proposal Deadline: As soon as possible, with rolling consideration when at least 3 proposals are received
• Contractor Selection: As soon as possible, with rolling consideration when at least 3 proposals are received
• Project Start Date: as soon as possible

1. Submission Instructions

Submit proposals electronically to:

Amber Richardson, Director of Camp Advancement

[email protected]

808-675-5524

Subject line: RFP Submission – Camp Kilohana Water Catchment System

1. Terms & Conditions

• Girl Scouts of Hawaii reserves the right to reject any or all proposals.
• Selection is not solely based on lowest bid; qualifications and design quality will also be considered.
• Contractor must obtain and pay for all necessary permits.
• Work must comply with all local building codes, environmental standards, and potable water regulations.