Pretreatment and Plumbing Code...
Transcript of Pretreatment and Plumbing Code...
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Pretreatment and Plumbing Code Collaboration
“Can’t We All Just Get Along?”
Dan Parnell
Permitting Section ManagerBureau of Environmental Services
April 18, 2016
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Environmental Services l Presentation Title 2
Overview
• Pretreatment/FOG Program Goals• Plumbing Code Goals• Collaborating• Loading Factors
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Environmental Services l Presentation Title 3
Common Goals ‐ Protection
• Protect public and sewer worker health
Sewer Use Ordinance
• Minimize public riskPlumbing
Code
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Environmental Services l Presentation Title 4
Achieving Pretreatment/FOG Program Goals
…pollutants which cause obstruction…
Prohibited discharges:
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Environmental Services l Presentation Title 5
Achieving Pretreatment/FOG Programs Goals
• How goals are achieved:
…require dischargers to install treatment facilities…
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Environmental Services l Presentation Title 6
Achieving Pretreatment/FOG Programs Goals• Install treatment facilities:
Adequate pollutant removals require…• Treatment systems sized on
1.Flow rate2.Pollutant loadings
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Environmental Services l Presentation Title 7
What Can Happen…
…if we don’t prevent prohibited discharges?
…the Fountain of Puke?
We get gratuitous FOG pictures, and…
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Environmental Services l Presentation Title 8
What Can Happen…
And they say there’s no such thing as bad press…
…and that can lead to…
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hieving Plumbing Code Goals
HGIDFUs
correlate to GPMs
GGIDFUs
correlate to GGI volume
gon Plumbing Specialty Code – Sized on Drainage Fixture Units (DFU)
How flow can you go?
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hieving Plumbing Code Goalses the OSPC use loading factors in sizing GRDs?
n the OSPC be implemented to account for high dings?
w?
Chapter 1014.3.1 (HGI) CapacityChapter 1014.4.5&6 (GGI) Construction Requirements
No
Yes
OSPC has sections that speak to maintenance
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ample:
dwich Shop oor drains n prep arean sandwich aking area
for ice machine
op sinkod prep sink
Burger Joint Wok n Roll 2 Go3 Floor drains • 1 in prep area• 1 in grill area
• 1 for ice machine
1 Mop sink1 Food prep sink
3 Floor drains • 1 in prep area• 1 in wok area
– 2 woks• 1 for ice machine
1 Mop sink1 Food prep sink
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ample:
Fixture r drainsp sinkd prep sink
Quantity311
ch restaurant has the same DFU count
233
*DFUs Total63312
rom table 7-3, OSPC.
Not all DFUs are created equally
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Example:OSPC Grease Removal Device Outcomes:
2 U
35 GPMHolds ~15 gal. material
750 gallonsHolds ~ 185 gal. material
aka A Plumber’s dozen
* From tables 10-2 & 10-3 OSPC
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Example:
ontractor proposes HGI Route for each restaurant
35 GPM~15 gal. material
dwich p?
er Joint?
n Roll?
OSPC Chapter 1014.3.1 (HGI)Sizing criteria …are based upon proper maintenance…
Can proper maintenance frequency be implemented?
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llaborating
pporting data found e…
here is data to determine if GRD can be dequately maintained?
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Collaborating
Building Officials
view proposed GRD
onsult with etreatment/FOG Staff
sure properly sized & stalled
Pretreatment/FOG Programs
• Review type of restaurant & GRD proposal
• Proper maintenance frequency attainable?
• Advise on HGI or GGI route
ollaboration could work like this:
Based on FSE
loadings potential
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Collaborating
timum GRD Outcomes:
andwich Shop
urger Joint
ok n Roll
They will, they will wok you…
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llaborating
Cities with collaborative relationships
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w Could a Plumbing Code Account for FOG Loadings?
umber of Meals
OG Production
erving Ware
Breakfast Lunch Dinner
Low Medium Heavy
Disposable Washable
des flow factors, include loading factors such as:
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llaboration
Focus on commonalitiesStay engagedFocus on fixesMake sure to manager your end