1. Las Delicias Water Supply System OPERATION AND MAINTENANCE MANUAL 1

2. I.Overview II. Safety III.Intake IV.Sedimentation/Pump Tank V.Pump VI.Pipeline VII.Storage Tank VIII.Distribution System IX.Maintenance CONTENTS 2

3. OVERVIEW 3

4. PLAN VIEW 4 Intake Sediment/ Pump Tank Pump Pipeline Storage Tank Distribution System

5. CONTACT 5 ? ?

6. SAFETY 6

7. All valves should be opened and closed slowly to avoid damage SLOWLY SAFETY 7

8. When entering a tank, always work with a partner: When entering a tank, the valve or switch controlling the flow into the tank should be off, and the person in the tank should lock it out: SAFETY 8 Lock

9. PUMP 9

10. Turning the Pump On (Manual Mode): 1.Inspection: Examine the pump and wiring, look for damaged wires in contact with metal piping or water. 2.Turning ON, Manual Mode: turn the knob from the OFF to the MANUAL Position. The green light should turn ON. 3.TURN OFF IMMEDEATLY if the red light comes on, OR if the pump pressure exceeds 475 PSI PUMP 10

11. Powering On the Pump (Auto Mode) 1.) Inspection: Examine the pump and wiring, look for damaged wires in contact with metal piping or water. 2.) Turning ON, Auto Mode: Simply turn the knob From the OFF to the AUTO Position. The Green Light should Turn ON. 3.) Turning OFF, Auto Mode: Simply turn the knob from the Auto to the OFF Position. TURN OFF IMMEDEATLY IF: If the Red Light Turns ON. OR the Pump Pressure Exceeds 475 PSI 11

12. PIPELINE 12

13. Maintenance (Continued): Look for any sign of water leaking along pipeline Look for holes, muddy or wet spots, and areas where dirt is washing away Fix leaks right away PIPELINE 13

14. STORAGE TANK 14

15. Shut Down Procedure: 1.Open the clean-out valve 2.Close the distribution valve 1 2 STORAGE TANK 15

16. Shut Down Procedure (Continued) 3.Remove all solids, and keep solids away from drain. STORAGE TANK 16

17. Shut Down Procedure (Continued) 4.Thoroughly wash with disinfectant like bleach 5.Rinse the tank with clean water STORAGE TANK 17

18. Normal Operation: Check that water is not coming out of overflow pipe. If water is coming from the overflow pipe, turn off the pump. STORAGE TANK 18

19. Start Up Procedure: 1.Close the Clean-Out Valve 2.Open the distribution Valve 1 2 STORAGE TANK 19

20. DISTRIBUTION SYSTEM 20

21. DISTRIBUTION SYSTEM 21 Maintenance: 1.Walk the system and check for wet areas that could be leaks

22. DISTRIBUTION SYSTEM 22 Maintenance (Continued): 2.Check for leaks at valve and PRV boxes visually and by feel.

23. DISTRIBUTION SYSTEM 23 Maintenance (Continued): 3.Repair leaks and replace any defective valves or fittings.

24. DISTRIBUTION SYSTEM 24 Maintenance (Continued): 6.Check for leaks at each tap stand, and repair or replace valves as needed.

25. DISTRIBUTION SYSTEM 25 Maintenance (Continued): 7.Every six months, turn ball valves slowly on and off, 3 or 4 times to make sure they are not stuck. If any valves are leaking, fix them right away. SLOWLY

26. Maintenance (Continued): 8.Add permanent location stakes when new pipelines are installed. DISTRIBUTION SYSTEM 26