Lift Station Safety and Maintenance

1. Lift Station Safety and Maintenance Tony Conn, Supervisor Wastewater Collection and Pumping connt@naperville.il.us

2. Safety • Lock out Tag out • Confined Space • Working on Energized Electrical Equipment • Arc Flash • Fall Protection • Crane Safety and Inspections • Tail Gate Talks

3. Lock-out/Tagout Confined Space Safety

4. Energized Equipment Arc Flash Safety

5. Electric Permit

6. Fall Protection Fall Protection Safety

7. Fall Protection Fall Protection Safety

8. Over Head Crane Truck Crane Crane Safety/Inspection

9. Crane Inspection Form

10. Maintenance • 4 - Wastewater Pumping Stations • 7 - Back Flow Prevention Stations • 19 - Lift Stations • 2 - Person Maintenance Crew • 1- Field Supervisor • 10,000 lb Crane Truck • ¾ ton Utility truck with external fuel tank and snow plow • 2 -other crew members trained in safety and basic maintenance

11. Maintenance Monthly visual inspection Semi- annual maintenance General maintenance

12. Maintenance Training • Maintenance crew certification on fluke test equipment • Hands on training at Joliet Junior College • Electrical • Motor and pumps • VFD’S • Motor controls • PLC’S

13. Maintenance • Pumps • Mixer • Check valves • Wet wells • Air valves • Control panels • Building and grounds • Blower/venting systems • Odor control • Minimal generator maintenance • Don’t work on SCADA

14. Pump Maintenance

15. Mixers and Flush Valves

16. Air Valves

17. Check Valve Replacement

18. Truck Mounted Computers

21. EMERGENCY PROCEDURES • Emergency Procedures for Power Outage and Bypass Pumping • Monarch Landings Sanitary Lift Station • Location: Corporate Drive • Sub: Monarch Landing Senior Village • Power Outage to lift station: • Once outage is detected, standby generator will provide 25 KVA of power, supplied by Olympian generator located on site.  Generator if fueled by natural gas. • Power outage can be monitored remotely by city Wastewater S.C.A.D.A. system located on City’s Citrix website. • Bypass Pumping: • If emergency generator is unable to provide power to the station.  Then bypass pumping becomes 2nd options.  • Then following procedure is to take place: • Make sure all employees have their PPE on them (Hard hat, safety glasses, safety boots, safety vest, gloves, and confine space gear, to perform the following task. • Quickly inspect 4” pump for the following items. 4” gaskets on connecting side of the suction and discharge side of hoses.  4” pump has be topped off with fuel. No sign of any leaks regarding fuel, oil, or antifreeze. • Make sure pump is primed before starting the pump at the station. • Open both lift station gates, and back the pump inside the fence area. • Position 4” pump so towing tongue of pump is facing EAST  Discharge would be facing NORTH.  Suction would be facing WEST • Place both pumps in the off position inside the control cabinet. • Pull all floats, level transducer out of the wet well.  Make sure floats are not tilted. • Put three 4” rigid suction hoses into the wet well just above the pumps. (Make sure you DO NOT drop hose onto pump head or electric head cord.) • Make sure all quick couplings are latched and secured to prevent accidental disconnect from the hoses.  If needed use duct tape or wire-ties to prevent accidental disconnect. • Connect one 4” discharge hose and laid it to the manhole just to the north of the station. • (Basin N01-056 manhole is painted red) Just outside of the northeast fence line. • Start 4” pump to pump down wet well.  Continue to monitor wet well levels and slow pump down to prevent lose of suction. • When power is restored, pump wet well level down as far as you can go. • Turn off your 4” bypass pump. • Manual run both pumps to insure everything is fine and running normal with the station prior to removing bypass setup. • Place floats and level transducer back into wet well • Test run station under load and make sure station is pumping and pumps are alternating. • Remove all bypass equipment. • Contact Field Supervisor and Springbrook once everything is running normal. • Using Vactor to remove sanitary wastewater from wet well • When both above procedures are not an option then use Vactors #779 & #777: • Make sure all employees have their PPE on them (Hard hat, safety glasses, safety boots, safety vest, and gloves to perform the following task. • Open lift station gates as wide as possible. • Open doors and secure them in the locked position. •  Pull all floats, level transducer out of the wet well.  Make sure floats are not tilted; they will active alarms at the station and Springbrook. • Pull Vactor into station with front of truck entering driveway first. • Position Vactor suction hose over wet well doors. • Connect about 3 to 4 8” tubes together. (USE CLAMPS TO CONNECT TUBES TOGETHER, PLUS USE DUCT TAPE TO SECURE CLAMPS FROM COMING APART) • As water level drops you’ll need to add more tubes. Please follow same instruction as G (see above) when installing addition tubes. • Engage Vactor to start vac.ing water from wetwell (Stay above water approximately 3 inches to prevent suction from clogging with water.  This will stop removing water from wetwell.) • Once Vactor tank is full you’ll need to dump water into sanitary manhole which will not drain back into wet well. (Basin N01-056 manhole is painted red) Just outside of the northeast fence line. • Once level is normal and station is back on line, place floats, level transducer back into wet well, monitor station for correct operation. • Contact Springbrook and Field Supervisor.

22. EMERGENCY PROCEDURES

25. Monthly visual inspection

26. Semi- annual maintenance

28. Going For a Swim

29. Questions