Record No. 14144207 WITHOUT CONTROLS WITH EXISTING CONTROLS TREATMENT The risk: describe what can happen and how it can happen Op Maintenance - Wastewater Security/Storage Risk?? Operation Category Risk Area Pump Effluent Direct Infiltration All except Design features. Accept current level Stations Inflow (including Seddon 4 B E Infiltration programme. 3 D M Y of control Flood) Inspections. Pump Natural Earthquake/ Ground Insurance/LAPP. Accept current level Stations Hazard Movement/ All 5 D H Design features. 4 E M Y of control Liquefaction Inspections. Pump Natural Slip/Flood Scour Design features. Accept current level Stations Hazard All 3 D M Inspections and 3 D M Y of control maintenance. Pump Man Made Power Failure - Generators. Accept current level Stations Hazard single pump stations Storage at pump of control station and in network. Use of standby pumps All 3 A E from twin pump 2 D M Y stations. Overflow design. Power supply arrangements. Pump Man Made Failure/Collapse - All 3 D M Design features. 3 E M Y Accept current level Stations Hazard Wetwell Wall of control Page 86 5 – 1secneuqesnoC doohilekiL E - A ksiR fo leveL gnitsixe eht era tahW slortnoc5 – 1 secneuqesnoCdoohilekiLE-AksiRfoleveLslortnoc gnitsixe eht erA etauqedastnemmoC nalP noitcA