When so requested, the Contractor shall provide services to maintain, repair, upgrade or replace mechanical treatment plant equipment to maintain effective treatment. Treatment plant equipment requiring these services includes, but it not limited to vertical turbine and centrifugal water pumps; submersible, centrifugal and progressive cavity sludge pumps; peristaltic, diaphragm and progressive cavity chemical dosing pumps; various motors, mixers, agitators, augers, probes, flow meters, blowers, compressors, water and chemical dosing pipelines, valves, ultrasonic fluid level transmitters, etc. Non-emergency service calls shall be provided within twenty-four (24) hours, unless otherwise agreed upon by the Commonwealth. Non-emergency service calls shall be paid at the Contract unit price bid per hour, which shall furnish all necessary labor, materials, equipment and incidental costs necessary to complete the work described herein...
