Qs and As.docx

This is a Questions and Answers document for the Retamal Dam Emergency Generator and Building Design-Build Solicitation (191BWC26R0005) issued by the United States Section of the International Boundary and Water Commission (USIBWC). The document addresses 21 key inquiries from potential bidders regarding project scope, specifications, and design requirements for replacing a non-functional emergency generator at Retamal Dam.

The project requires contractors to design and build a generator enclosure or metal building with an integrated diesel fuel tank on a new concrete pad. The new building must be a minimum of 150 square feet, with the HVAC unit sized between 40-150 KW (12,000-24,000 BTU/hr) depending on final design specifications. The generator must maintain the existing capacity as determined through electric load calculations conducted by the contractor, with a 72-hour runtime requirement during outages and a sub-base diesel fuel tank sized for 72-hour operation at 75% load. The new generator will connect to the existing electrical panel in the existing building, which will remain in place. The contractor is responsible for determining the appropriate Pennsylvania emissions tier and verifying all electrical load calculations. The existing automatic transfer switch is a Generac unit to be supplied by the government. Early generator procurement is permitted, though the contractor assumes liability for any design deficiencies discovered later. The project includes site preparation, system inspections, debris disposal, and quality control testing, with work restricted to facility operating hours of 7:00 AM to 3:30 PM, Monday through Friday. Section 01.78.36 specifies warranty requirements of at least 5 years for the generator and automatic transfer switch, and 20 years for roofing and roof system materials.