70204

Question 1

What are the tank dimensions and what type of tank is it?

Answer 1

182’-6” x 61-6” - CRT w/ IFR

Question 2

how many annular plate sections are we installing?

Answer 2

5

Question 3

what is the thickness of the annular plate we are replacing?

Answer 3

1/4” thick

Question 4

what grade material are we replacing for the bottom plate?

Answer 4

A36

Question 5

what kind of NDE are we to do as soon as we remove the bottom annular sections?

Answer 5

Visual exam and either MT or PT

Question 6

What kind of nde must we do after installing the final pass on a new piece of annular ring?

Answer 6

it should be visually examined, vacuum box tested, and either pt or mt

Question 7

who is to remove the existing insulation on the tank?

Answer 7

the existing insulation must be removed by others prior to us starting work on the bottom plates.

Question 8

what are we to do with the tank foundation beneath the annular plate replacement prior to installing new plates?

Answer 8

clean, visually inspect, and repair/replace damaged areas with clean asphalt fill

Question 9

how much asphalt fill did we include in our proposal?

Answer 9

(1) 5 gallon bucket of asphalt filler for each of the annular plate replacement sections

Question 10

How many lap welded patches are we installing in the critical zone?

Answer 10

3

Question 11

what grade material are the patches to be installed in the critical zone?

Answer 11

A36

Question 12

for the lap patches, what kind of NDE shall be done?

Answer 12

the root and final pass of all the lap welded patch plates shall be visually examined, vacuum box tested, and either MT or PT

Question 13

An existing floating roof anti-rotation cable is located at one of the new lap-welded patch plate locations. what will we do with this anti-rotation cable and what do we assume of it?

Answer 13

anti-rotation cable will be removed and reinstalled on the newly installed patch plate. We assume that this item is currently in serviceable condition.

Question 14

what are we to do with the existing primary seal vapor barrier fabric?

Answer 14

remove and replace it and its associated hardware

Question 15

regarding the primary seal, what will we be re-using?

Answer 15

the existing channel for the riser, the hanger assembly, and the primary shoe

Question 16

what will we be doing with the secondary wiper seal?

Answer 16

remove and replacing

Question 17

regarding the secondary wiper, what will we be re-using?

Answer 17

the existing wiper riser

Question 18

per epa guidelines, what are we to do with the secondary seal?

Answer 18

we will be measuring and recording the gaps for the secondary seal gaps

Question 19

what is the last thing we will be doing per our sow?

Answer 19

installing new repair nameplate

Question 20

what have we excluded per our proposal?

Answer 20

coatings, strapping, commissioning, instrumentation, insulation, hydrotesting

Question 21

what is the approximate duration for the repairs?

Answer 21

9 days

Question 22

what is our proposed weekly work schedule?

Answer 22

6-10s

Question 23

we reserve the right to alter our work schedule at our sole discretion to ______.

Answer 23

maintain a safe, efficient, and quality project.

Question 24

a weather day constitutes as what?

Answer 24

less than 6 hours of work on a given day

Question 25

have we included weather make up days?

Answer 25

no