Water Catchment: Request Proposal

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

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.

The selected contractor will be responsible for:

• 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.
• 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.
• 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.
• 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.

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).

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).
• Any exclusions, warranty and maintenance offerings.

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

Submission Instructions:

Submit proposals electronically to:

Amber Richardson, Director of Camp Advancement

arichardson

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 value will also be considered.
• Contractor must obtain and pay for all necessary permits.
• Work must comply with NEC, state, and county regulations.
• All contracts in excess of $10,000 must address termination for cause and for convenience by the non-Federal entity including the manner by which it will be effected and the basis for settlement.
• All contracts must include the equal opportunity clause provided under 41 CFR 60-1.4(b), in accordance with Executive Order 11246, "Equal Employment Opportunity" (30 FR 12319, 12935, 3 CFR Part,  Comp., p. 339), as amended by Executive Order 11375, "Amending Executive Order 11246 Relating to Equal Employment Opportunity," and implementing regulations at 41 CFR part 60, "Office of Federal Contract Compliance Programs, Equal Employment Opportunity, Department of Labor."
• All contracts awarded by the non-Federal entity in excess of $100,000 that involve the employment of mechanics or laborers must include a provision for compliance with 40 U.S.C. 3702 and 3704, as supplemented…