Statement of Work Repair Steam Vents - 583-25-517 Introduction City steam is vented through a shallow concrete trench into risers from the main steam vault. Three vent pipes connected to relief valves ranging from 35 to 110 psi are located in the trench. The three steam vent pipes have failed, leading to a critical situation where steam is backing up into the mechanical space, creating a hazardous work environment. Immediate action is required to prevent further risks. Steam is also venting openly through the concrete shallow trench, posing a potential threat to VA employees entering/exiting the Richard L. Roudebush Veterans Affairs Medical Center (VAMC) through the south basement entrance. Objective The main objective of this project is to remove the three (3) failed steam vent pipes, merge the remaining sections of the three steam vent pipes into one main collector in the mechanical space, and connect the collector to an existing riser. Period of Performance and Work Hours The contractor shall complete all the requirements described in this scope of work within 30 calendar days after the notice to proceed. Maintaining the medical center's operational capability is paramount, and the contractor shall coordinate all activity schedules with the COR prior to execution and two weeks in advance. According to the nature of the work, this project can be conducted during regular business hours and/or after-hours/weekends. Regular business hours are 7 AM to 4 PM, Monday through Friday. Work requiring outages shall be completed after hours or on weekends as coordinated with the COR. Scope of Work The contractor shall provide all necessary services, supervision, labor, transportation, supplies, equipment, tools, licenses, chemicals, and materials to execute the following: All work shall be completed during the non-heating season to avoid or minimize medical center operational disruptions. Work shall be phased based on the available shutdown time windows (five hours or less) and VA-approved shutdown dates. c. Shutdowns proposed by the contractor shall be properly coordinated with the affected services in advance and approved by the VA. Planned, implemented, monitored, and adjusted all the required site-specific safety measures to accomplish the work needed in compliance with OSHA. The main steam vault is under high-temperature conditions, and the contractor must comply with the OSHA heat stress regulation. The main steam vault is a permit-required confined space (PRCS), and the contractor must comply with the OSHA confined space regulation and VA PRCS program. Plan, implemented, monitored, and adjusted all the required safety measures to accomplish the work in a PRCS under high-temperature conditions (i.e., organizational measures, collective and personal protective equipment, rescue team, air and temperature monitoring, trained personnel, etc., as needed). Before the work starts, cordon off the work area and the steam vault entrance from the public with 6 high chain link temporary fencing. Provide temporary fenced areas with warning and wayfinding signs. Excavate and clean debris from the concrete shallow trench and remove it off-site. Cut the three (3) failed vent pipes in the mechanical space and at the riser and remove them off-site. Vent pipe sizes are 10-inch, 8-inch, and 6-inch in diameter. Remove the 8-inch and 6-inch risers off-site. Complete Non-Destructive Testing (i.e., X-ray inspection) to determine if the metal thickness of the existing 10-inch riser is enough to weld on. Merge the remaining sections of the three (3) steam vent pipes into a 10-inch collector inside the steam vault. Provide and install enough and appropriate pipe supports/stands for the new steam vent pipe system. The new steam vent collector shall go through one of the existing wall penetrations and follow the path of the existing steam vent pipes up to the 10-inch riser. Connect the steam vent collector to the existing 10-inch riser. Pipe material shall be ASTM A106, Grade B, seamless carbon steel, schedule 40, butt weld. All pipe connections shall be welded. Close the two (2) unused concrete wall penetrations on both sides of the wall with stainless-steel plates and stainless-steel anchors for corrosion resistance. A high-temperature resistance gasket shall be installed between the concrete wall and the stainless-steel plates. Dimensions and details are based on the best available information. However, the contractor shall not strictly rely on the provided information. The contractor shall verify existing site conditions, locations, dimensions, quantities, and accuracy. The contractor shall provide, maintain, and adjust safety equipment and measures to protect construction workers and the public. This shall include additional equipment and measures that may be required by the COR or the VA Safety Service during the contract. The contractor shall obtain all necessary permits and licenses required to perform all work associated wi