Sealed proposals will be received at Seneca County General Health District, 92 E. Perry St. Tiffin, OH 44883 until 1:00 p.m. (Local Time) on July 13, 2023, for the INSTALLATION/ OPERATION/ MAINTENANCE of AMBIENT AIR MONITORING STATIONS FOR SENECA COUNTY GENERAL HEALTH DISTRICT. The scope of work consists of providing all materials and labor to install the semi-permanent monitoring stations at two pre-selected rural locations adjacent to county roadways. Additionally, each station requires a meteorological tower and monitoring equipment, an 8-foot chain-link fence and monitoring equipment to continuously measure SO2 and H2S ambient air concentrations using USEPA Reference Methods. The vendor will be expected to enter into a contract to provide for operation and maintenance of these stations for a period of 3 years. Proposals must be in accordance with the RFP and must be submitted in a sealed envelope marked Ambient Air Monitoring Stations. All pre-proposal questions are required to be submitted to Seneca County General Health District by 3:00 p.m. on June 15. This project will be subject to Federal Prevailing Wage Rates (Davis-Bacon Act). It will also be subject to all applicable Federal Equal Opportunity Laws, and related regulations. No proposer shall be permitted to withdraw their proposal for a period of 90 days after the time of proposal submittal.