This is a firm-fixed-price contract for quarterly, biannual, and annual preventive maintenance of a Water Purification System at USDA’s National Center for Applied Plant Protection in Laurel, Maryland. The contract includes a 12-month base period with four 12-month option periods, for a total potential duration of five years. The contractor must provide all materials and services specified in the Statement of Work. Site visits are by appointment only, require government-issued photo ID, and are escorted by the facility point of contact. For scheduling, contact Wesley Hutchinson at the provided phone and email.