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Event source type: Human fault

Description

Hazards occurring due to human faults are not based on an intentional attack. Although they are characterized by wrong behavior of people (human failure), the person/people causing the hazard are not aware of their wrong behavior and thus have no intention to cause the hazard.

Measures

Events

Gate 234 - Contamination of WDN tank
Gate 236 - Outflow of WDN tank is interrupted
Gate 237 - Outflow valve of WDN tank closed
Gate 239 - Mislead PLC controlled WDN tank refill process
Gate 258 - WDN control center power supply failure
Gate 260 - WDN control system manipulated
Gate 219 - Staff controlled hydraulic processes run without WTP data
Gate 220 - Staff or PLC controlled hydraulic processes run on altered WTP data
Gate 86 - Overflow due to exceedance of hydraulic capacity
Gate 191 - Mislead surface water management system
Gate 193 - Surface water management system functions on altered data
Gate 96 - Contamination from farming activities
Gate 226 - Undetected WTP power transformer failure
Basic Event 52 - Restricted area authorization procedure failure
Basic Event 240 - Upadate of OS causes false positive alarms from Event Detection System
Basic Event 237 - Malware alters PLC statements that control WDN tank refill
Basic Event 241 - No alternative power supply available
Basic Event 250 - Malware alters PLC statements that control pump
Basic Event 257 - Incorrect execution or failure of software acquired from an external party crashes PBS control system
Basic Event 261 - Undetected SCADA hijacking software takes control of PBS operation
Basic Event 264 - Malware alters PLC statements that control valve
Basic Event 268 - Cathode corrosion stolen/destroyed/manipulated
Basic Event 270 - Control center destroyed by accidental fire
Basic Event 271 - WDN Control center destroyed by accidental flood
Basic Event 279 - Malware corrupts prediction model database
Basic Event 281 - Incorrect execution or failure of software acquired from an external party crashes WDN control system
Basic Event 282 - Failure to regulate the temperature, humidity and air quality in environments where information systems are located
Basic Event 218 - Accidental errors by authorized user while maintaining information system
Basic Event 27 - Serious spill from inderedependent Industry CI accident
Basic Event 30 - Sewer line accidental break
Basic Event 29 - Sewer line overflow from blockage
Basic Event 21 - WWTP operational staff faulty actions/decisions
Basic Event 171 - Human error in operating/using surface water management system
Basic Event 172 - Structural deterioration of reservoir intake pipe material
Basic Event 175 - External physical load due blasting leads to reservoir tunnel collapse
Basic Event 180 - Incorrect execution or failure of software acquired from an external party crashes reservoir control system
Basic Event 33 - Pesticide seepage to groundwater catchment
Basic Event 34 - Nutrient pollution of groundwater catchment
Basic Event 203 - Mine drainage
Basic Event 200 - Incorrect execution or failure of software acquired from an external party crashes abstraction well control system
Basic Event 216 - Incorrect execution or failure of software acquired from an external party crashes WTP control system
Basic Event 217 - Failure to regulate the temperature, humidity and air quality in environments where information systems are located
Basic Event 222 - A valve is opened and floods equipment
Gate 123 - Contamination at WDN water tank
Gate 146 - Free chlorine residual in WDN
Gate 115 - Additive and/or disinfectant overdosing
Gate 116 - Chemical overdosing due to misled WTP operation
Gate 176 - Staff controlled processes run without WTP data
Gate 177 - Staff or PLC controlled processes run on altered WTP data
Gate 142 - Chemical overdosing due to loss of WTP control
Gate 113 - Lower efficiency of WTP disinfectant undetected
Gate 118 - Disinfectant composition altered
Gate 114 - Staff operate disinfection process without WTP data
Gate 117 - Staff or PLC controlled disinfection processes run on altered WTP data
Gate 111 - Insufficient disinfection due to loss of WTP control
Gate 178 - Dosing system disabled
Gate 179 - Dosing system destroyed
Gate 96 - Contamination from farming activities
Gate 182 - Seepage of contaminated floodwater through monitoring wells
Gate 86 - Overflow due to exceedance of hydraulic capacity
Gate 122 - THM by-product formation in WTP
Gate 143 - External contamination of WTP
Gate 185 - Undetected contamination of WTP chemical solutions
Gate 186 - Quality verification process runs on altered WTP data
Gate 187 - Contamination of WTP chemical solutions
Gate 189 - Additives composition altered
Basic Event 52 - Restricted area authorization procedure failure
Basic Event 150 - No sensor or insufficient type of quality sensor in the tank
Basic Event 56 - Wrong connection of drinking water pipes with non-potable water pipes
Basic Event 57 - Contamination source present around pipe
Basic Event 148 - PRESSURE DIFFICIENCY CONDITIONS
Basic Event 82 - Organic matter present in consumers drinking water pipes
Basic Event 75 - Chlorination disinfection process in WTP
Basic Event 81 - Additive and/or disinfectant overdose from WTP staff error
Basic Event 159 - Incorrect execution or failure of software acquired from an external party crashes WTP control system
Basic Event 160 - Failure to regulate the temperature, humidity and air quality in environments where information systems are located
Basic Event 41 - Disinfectant missdosage from WTP from operational staff error
Basic Event 66 - No back-up alternative for WTP dosing system PLC
Basic Event 33 - Pesticide seepage to groundwater catchment
Basic Event 34 - Nutrient pollution of groundwater catchment
Basic Event 27 - Serious spill from inderedependent Industry CI accident
Basic Event 30 - Sewer line accidental break
Basic Event 29 - Sewer line overflow from blockage
Basic Event 21 - WWTP operational staff faulty actions/decisions
Basic Event 73 - High biological load from improperly maintained WTP storage tank

Name

Human fault

This project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No. 740610. The publication reflects only the authors' views and the European Union is not liable for any use that may be made of the information contained therein. All illustrations in the homepage are attributed to rudall30/Shutterstock.com.