Oily Waste and Non-Radioactive Waste System

Question 1

What is the purpose of the OW system?

Answer 1

Collect and transport liquid waster from equipment and floor drains in the turbine building, control building, diesel building, fire pump house and yard area

collection point for an oil/water mixture at the oily waste separator where the oil is manually skimmed and removed for proper disposal

Question 2

How many sump pumps are utilized in the sumps of the OW system?

Answer 2

2 each

Question 3

What is the purpose of the alternator?

Answer 3

Swap lead pumps to equalize run time and wear

Question 4

Why is there flow orifices installed in the discharge of the sump pumps?

Answer 4

to balance flow to control pump runout during one or two pump operation

Question 5

What system provides lube to the control building sump pumps intermediate and case bearing?

Answer 5

Demin water (DW)

Question 6

What system provides lube to the DG building sump pumps?

Answer 6

Domestic service (DS)

Question 7

What starts and stops the sump pumps on high or low level?

Answer 7

Float level control switches (first set for control and second for alarm)

Question 8

The turbine building OW system sump pumps normally send waste to oil/water separator. Where else can waste be sent?

Answer 8

CWNT or LRS holdup tanks if there are chemicals or radioactivity

Question 9

Where is the water from the battery room in the switchgear building directed?

Answer 9

Acid neutralizing sump in the room and then to the north condenser sump

Question 10

Generally what type of water is collected in the turbine building sumps?

Answer 10

Water with the highest potential for water being present

Question 11

What waste is received in the North condenser area sump?

Answer 11

North and west areas of the turbine building and the CST pump house

Question 12

What drains are collected in the West control building sump?

Answer 12

‘A’ train side of the control building
‘A’ & ‘B’ EW heat exchanger tube side drains

Question 13

What drains are collected in the East control building sump?

Answer 13

‘B’ train side of the control building

Question 14

What is different about the waste from the ‘A’ and ‘B’ cable spreading rooms?

Answer 14

They do not flow to the control building sumps

They drain separately to the ground outside the control building

Drain screens on the outlets of the 2 drains

Question 15

What collects in the east and west diesel building sumps?

Answer 15

Their respective diesel leakage

Question 16

What drains are received in the yard area sump?

Answer 16

Demin water storage tank and pumps

Aux boiler (no longer used)

Turbine building normal air handling units

Question 17

Where do the yard area sumps discharge to?

Answer 17

CW canal

Question 18

What is the capacity of the retention tanks?

Answer 18

505,000 gallons

Question 19

Where are the retention tanks located?

Answer 19

plant west of the unit 3 spray pond

Question 20

What is the purpose of the retention tanks?

Answer 20

Receive effluent from all 3 units turbine building OW separators and Chem waste neut tank transfer pumps

Question 21

Who operates the retention tanks?

Answer 21

Water resources

Question 22

At what level will a sump pump start to pump its associated sump?
When does the 2nd start?
What level do they secure?

Answer 22

80% level to start
90% for the 2nd
20% they stop