Water Operations And Maintenance Bulletins

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Nameplates:
Attachment With Pressure Sensitive Tape 38
Identification, Piping and Controls 74

National Safety Council:
Data Sheets 58, 61, 66, 74

Natural Gas Still Cheapest for Irrigation Pumping 134

Needle Valves:
Balanced 116
Cavitation 116
Ensign (Balanced) 116
Interior Differential 116
Internal Differential 116
Investigation 144
Mechanically Operated 116
Minatare Dam 116
Operating and Maintenance Problems 116
Operating Shaft Support 29
Paradox Control 116
Recommended Operating Practices 116
Repair Procedures 116
Replacement 139, 144

Neoprene:
Dam Waterproofing 4

Nets:
Canal Safety 24, 51

Neutron Probe 99

New Roofing Systems 79

Noise Barrier, Easy to Clean 113

Noise Detector:
Bearings 43

Noise, Dig Hole to Deaden Pumping Noise 157

Nondestructive Testing - Large Dams 185,  195

Notched Irrigation Ditches 129

Nutria:
A Ditchbank Pest 46

Nylon Ropes 107

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Last Updated: 6/11/15