Risk area | Parameter | Warning | Threshold | Alert | Worst case |
---|---|---|---|---|---|
1 | POU filter | ||||
2 | CFU/1 ml 22°C, 36°C | inspection, | inspection, flushing, POU filter, | meeting of taskforce water safety, | meeting of taskforce water safety, stop of withdrawal, |
 |  | flushing, | control within 1 day, | Inspection, | disinfection, |
 |  | control within 3 days | If negative → finish use of POU filter | Flushing, |  |
 |  |  | If still positive → disinfection | disinfection, POU filter, control within 1 day |  |
 | P. aeruginosa, |  | inspection, POU filter, |  | meeting of task force water safety, |
 | Legionella spp., |  | flushing, control within 1 d, |  | stop of withdrawal or POU filter, disinfection, |
 | E. coli Enterococci, |  | if negative → finish use of POU filter |  | control within 1 day, |
 | fungi |  | if still positive → disinfection |  | If negative → withdrawal allowed with POU for 5d, |
 |  |  |  |  | parallel water sampling |
3 | CFU/1 ml 22°C, 36°C |  | inspection, flushing, control within 3 days, |  | meeting of task force water safety, flushing, |
 |  |  | If still positive → disinfection, |  | disinfection, |
 |  |  | flushing, |  | control within 1 day |
 |  |  | control within 7 d |  |  |
 | P. aeruginosa, |  | inspection, |  | meeting of task force water safety, |
 | Legionella spp., |  | POU filter, flushing, control within 1 day, if negative → finish POU usage |  | stop of withdrawal or POU filter, |
 | E. coli, |  | if still positive → disinfection |  | if negative → |
 | Enterococci, |  |  |  | release of withdrawal and POU for 5d, parallel water sampling |
 | fungi |  |  |  |  |