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9 Cards in this Set
- Front
- Back
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Where are the potable water isolation valves located in the power 1 block?
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East side in the parking lot
B-2817 for an eye wash station The warehouse E/W Pipe way near Cooling tower / tank 2 to B-2805 Cooling Tower Area. |
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What is the purpose of the backflow preventer on the potable water system?
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It acts as a check valve preventing any contamination in the block from contaminating the site header.
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What does the potable water system supply in the power 1 block?
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It supplies water for drinking, safety showers, restrooms, and kitchens.
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Where are the safety showers located in Power 1?
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Boiler #3 top level
Boiler #3 lower level Boiler #4 top level Boiler #4 lower level #2 battery room ST 5 Battery room ST 5 cooling tower CL2 feed area ST 5 cooling tower chem feed area Silica analyzer building Warehouse #1 Battery room #3 Battery room |
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How will the control room know if a safety shower is activated?
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For vintage power 1 safety showers there are a lever at each station that when pushed activate an alarm in the control room which will prompt a response from the aux. operator. At St 5 there is a flow switch that is activated that also rings an alarm to the control room.
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What provision should be made if the potable water system is taken out of service?
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Ensure potable water coolers are full and available in the kitchen areas.
Ensure deck packs are filled with water and in restrooms for usage. All chemical feed and storage areas will be monogoggle required areas during this period. Post signs at all personal consumption areas that say do not drink potable water outage. Portable Iowa stations or bottles must be kept in lab areas and shops. Also in areas where maintenance is being performed. Any work permits written during this outage must include special instructions that say the system is down. Make announcements over the PA that the potable water system is out if service and all chemical feed areas are monogoggle required areas. |
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What implications does a freeze precaution have on the potable water system?
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High flow on the potable water system may cause pressure to drop, the actions taken on a potable water outage may be necessary if the pressure can be maintained.
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What must happen prior to drinking the potable water once it is returned to service?
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Dead in lines should be flushed. Do not flush sinks or water coolers with point of service filters as they may become contaminated and will have to be changed. EOB will advise on length of flush and when the system can be returned to use.
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At what frequency is the potable water dead end sections flushed? Who performs this flush?
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Weekly, the operator working days.
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