Specifications include, but are not limited to: Electric motor actuators shall comply with AWWA Standard C542 except as modified in this specification. In cases where the requirements of this specification conflict with the AWWA requirements, the requirements of this specification shall govern. Each actuator shall include a control module, motor, gearing, limit and torque switches, a handwheel for manual operation on emergency, and a position indicator, all as specified herein. Each actuator shall be designed for continuous operation. All electric motor actuators provided under this specification shall be made by the same manufacturer. All electric valve actuators shall include an intermediate reduction gear (worm gear, helical or spur gear type or combinations thereof) in a separate gear box located between the valve and the electric actuator. The power gearing shall consist of generated helical gears of heat-treated steel and worm gearing. The worm shall be carbonized and hardened alloy steel with the threads ground after heat treating. The worm gearing shall be alloy bronze accurately cut with a hobbing machine. All power gearing shall be lubricated. Anti-friction (ball or roller) bearings shall be used throughout. The Supplier shall provide the Engineer with an affidavit of compliance from the manufacturer or the manufacturer's authorized representative that the motor operators furnished comply with the applicable provisions of AWWA Standard C542 and this specification (see AWWA Standard C542, Affidavit of Compliance). All motor starters shall be solid state reversing type. The unit shall be designed to maintain existing valve position on loss of signal or power...