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Event Consequence: Quality

Description

An event may lead to a disturbance of the quality of supplied water. This may result in chemical, biological or radiological aberrations from the usual quality. The aberrations may be of minor concern but may reach up to a poisoning of the customers.

Measures

Events

Basic Event 52 - Restricted area authorization procedure failure
Basic Event 53 - Biological, chemical or radioactive substance injected to water tank
Basic Event 29 - Sewer line overflow from blockage
Basic Event 31 - Combined sewer line overflow from flooding
Basic Event 32 - External person physically damages sewer line
Basic Event 14 - Heavy rain
Basic Event 17 - Insufficiency / failure of WWTP flood measures
Basic Event 19 - Internal person intrudes WWTP control room and takes over SCADA
Basic Event 20 - SCADA hijacking software takes control of WWTP operation
Basic Event 23 - Man-in-the-Middle attack manipulates WWTP control signals
Basic Event 214 - Undetected SCADA hijacking software takes control of WTP operation
Basic Event 215 - Man-in-the-Middle attack manipulates WTP control signals
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
Gate 120 - Contamination of drinking water
Gate 121 - Contamination at the storage and distribution network
Gate 123 - Contamination at WDN water tank
Gate 181 - Tank quality sensor failure
Gate 124 - Contamination at WDN distribution point
Gate 125 - Contamination at WDN pipe
Gate 126 - Contamination from system open paths
Gate 134 - THM formation in WDN
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 102 - Water treatment plant failure
Gate 106 - Microbial contamination of WTP outflow
Gate 108 - WTP sanitation process failure
Gate 110 - Insufficient disinfection due to misled WTP operation
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 119 - Insufficient disinfection process controlled by intruder
Gate 127 - Inability of WTP to perform disinfection process
Gate 178 - Dosing system disabled
Gate 179 - Dosing system destroyed
Gate 109 - Extreme WTP sanitation process failure
Gate 135 - High level of organic matter in water
Gate 136 - Insufficient coagulation and settling process efficiency
Gate 188 - Coagulant composition altered
Gate 93 - Raw water body contamination
Gate 94 - Groundwater contamination
Gate 96 - Contamination from farming activities
Gate 103 - Contamination at groundwater monitoring site
Gate 182 - Seepage of contaminated floodwater through monitoring wells
Gate 95 - Surface water contamination
Gate 97 - Industrial activities and waste disposal failure
Gate 98 - Failure at sanitation system
Gate 99 - Sewer line failure and flow to surface water body
Gate 85 - WWTP failure
Gate 86 - Overflow due to exceedance of hydraulic capacity
Gate 87 - WWTP site flooded
Gate 88 - Inappropriate hydraulic operation of WWTP due to loss of control
Gate 89 - Inappropriate hydraulic operation of WWTP due to misled operation
Gate 90 - Sub-standard outflow due to operational failure
Gate 91 - Inappropriate WWTP outflow quality due to loss of control
Gate 92 - Inappropriate WWTP outflow quality due to misled operations
Gate 112 - Treated water contamination
Gate 107 - Chemical contamination of WTP outflow
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 53 - Biological, chemical or radioactive substance injected to water tank
Basic Event 150 - No sensor or insufficient type of quality sensor in the tank
Basic Event 151 - External person physicaly manipulates tank quality sensor readings
Basic Event 152 - Man-in-the-Middle attack manipulates quality sensor signals
Basic Event 54 - Biological, chemical or radioactive substance pumped through hydrant
Basic Event 55 - Biological, chemical or radioactive substance pumped through tap
Basic Event 56 - Wrong connection of drinking water pipes with non-potable water pipes
Basic Event 149 - Biological, chemical or radioactive substance injected through pipe
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 42 - External person physically destroys WTP sensors
Basic Event 43 - External person jams WTP sensor signal transmission
Basic Event 46 - Internal person jams WTP sensor signal transmission
Basic Event 47 - Internal person physically destroys WTP sensors
Basic Event 154 - External attacker destroyes absraction point quality sensors
Basic Event 158 - External attacker blocks WDN sensor reading to reach WTP
Basic Event 48 - External person physically manipulates WTP sensor readings
Basic Event 49 - Internal person physically manipulates WTP sensor readings
Basic Event 50 - Man-in-the-Middle attack manipulates WTP sensor signal
Basic Event 51 - Internal cyber manipulation of WTP sensor signal
Basic Event 153 - External attacker manipulates WTP transmission devices
Basic Event 155 - External person physicaly manipulates abstraction point quality sensor readings
Basic Event 156 - Man-in-the-Middle attack manipulates abstraction point quality sensors
Basic Event 157 - Man-in-the-Middle attack manipulates WDN quality sensor readings
Basic Event 61 - External person breaks in to WTP and takes over SCADA undetected
Basic Event 62 - Internal person silently takes over SCADA control
Basic Event 63 - Undetected SCADA hijacking software takes control of WTP operation
Basic Event 64 - Man-in-the-Middle attack manipulates WTP control signals
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 44 - External person adds substance to WTP disinfectant storage tank
Basic Event 45 - Internal person adds substance to WTP disinfectant storage tank
Basic Event 70 - Natural phenomena alter reagent dosing system
Basic Event 65 - DoS attack to dosing system PLC
Basic Event 66 - No back-up alternative for WTP dosing system PLC
Basic Event 67 - Natural phenomena destroy dosing system
Basic Event 68 - External person physically destroys WTP dosing system
Basic Event 69 - Internal person physically destroys WTP dosing system
Basic Event 76 - External person physically damages WTP coagulation system
Basic Event 77 - External person adds substance to WTP coagulant storage tank
Basic Event 78 - Internal person adds substance to WTP coagulant storage tank
Basic Event 36 - Seepage of Interdependent Industry CI waste to groundwater catchment
Basic Event 33 - Pesticide seepage to groundwater catchment
Basic Event 34 - Nutrient pollution of groundwater catchment
Basic Event 37 - External person injects substance at sub-surface of monitoring site
Basic Event 38 - External person adds substance at the topsoil of monitoring site
Basic Event 39 - External person adds substance through monitoring well
Basic Event 35 - Infiltration of contaminated floodwater to groundwater catchment
Basic Event 14 - Heavy rain
Basic Event 60 - Flood control measures failure near monitoring site
Basic Event 26 - Serious spill from Interdependent Industry CI from cyber-physical attack
Basic Event 27 - Serious spill from inderedependent Industry CI accident
Basic Event 28 - Illegal disposal practices from interdependent Industry CI
Basic Event 30 - Sewer line accidental break
Basic Event 29 - Sewer line overflow from blockage
Basic Event 31 - Combined sewer line overflow from flooding
Basic Event 32 - External person physically damages sewer line
Basic Event 17 - Insufficiency / failure of WWTP flood measures
Basic Event 18 - External person breaks in WWTP and takes over SCADA
Basic Event 19 - Internal person intrudes WWTP control room and takes over SCADA
Basic Event 20 - SCADA hijacking software takes control of WWTP operation
Basic Event 23 - Man-in-the-Middle attack manipulates WWTP control signals
Basic Event 21 - WWTP operational staff faulty actions/decisions
Basic Event 22 - Man-in-the-Middle attack manipulates WWTP data transmitted from sensors
Basic Event 24 - External person physically manipulates WWTP quality sensor
Basic Event 71 - Contaminated floodwater mixed with treated water in WTP
Basic Event 72 - External person induces biological substances to treated water tank
Basic Event 73 - High biological load from improperly maintained WTP storage tank
Basic Event 79 - Contaminated air from Industry reaches WTP and seeps into treated water
Basic Event 80 - External person induces chemical or radioactive substance to treated water tank
Basic Event 161 - External person adds substance to WTP stored additives
Basic Event 162 - Internal person adds substance to WTP stored additives

Name

Quality

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.