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FacilityName: C
Address: 15 6 U,) 0,0-A Suite No.:
® A Grease Trap plumbing permit is required ($165.00 fee). Contact the Pretreatment
Technician (425-672-5755) if you have any questions and also to get signature approval on
this form.
® Dishwashers are not allowed to be connected to a Grease Trap.
® Food disposers are not allowed in a facility served by a Grease Trap and must be disabled or
removed. Solids must be screened out and placed in the solid waste container.
Number of Fixtures Connected to a Grease Trap
Fixture Capacity in Cubic
Inches
(L x W x D x no. of sinks)
Fixture Capacity
in Gallons
(Cu. In. ® 231)
Drainage Load
(75% of Total
Capacity)
Flow Rate for
a 2 -Minute
Drain Period
#1
x x x = c.i.
_ 231= gal.
x .75 = al.
_ 2 = m
2
x x x = c.i.
= 231= al.
x .75 = al.
= 2 = m
3
x x x = c.i.
_ 231 = gal.
x .75 = gal.
= 2 = m
#4
x x x = c.i.
= 231 = gal.
x .75 = gal.
_ 2 = m
Grease Trap #1— Total drainage flows from maximum of 4 fixtures
gpm
1
x x x = c.i.
= 231 = al.
x .75 = gal.
_ 2 = gpm
#2
x x x = c.i.
m 231 = al.
x .75 = gal.
_ 2 = m
#3
x x x = c.i.
_ 231 = gal.
x .75 = gal.
_ 2 =m
4
x x x = c.i.
= 231= al.
x .75 = gal.
= 2 gpm
Grease Trap #2 — Total drainage flows from maximum of 4 fixtures
gpm
MINIMUM SIZE OF GREASE TRAP(S) REQUIRED
gpm
Number of Fixtures Connected to a Grease Trap
1
2
3
4
Grease Trap Size (in m)
20
25
35
50
B
Upsize for factors such as high volume dishwashing, high oil/grease content on menu, t
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Size Approved: gpm Approved by ° f �� °��� �„� Date: a � lC
� retreatment Technician
[Rev. Feb. 2004]
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