This contract awards the preventive‑maintenance of a fleet of diesel generators (45+ units across 30+ sites) owned by the Rock River Water Reclamation District. The contractor must perform two comprehensive inspections each year (early March and early September), submit detailed reports, and obtain prior approval before any repair work. The agreement is a three‑year fixed‑price contract with optional one‑year extensions, requiring compliance with Illinois prevailing‑wage rules, insurance standards, and human‑rights registration. No bid bond or performance bond is required, and all bids were submitted in sealed envelopes by the January 9, 2020 deadline.