pretreatment and plumbing code...
TRANSCRIPT
Pretreatment and Plumbing Code Collaboration
“Can’t We All Just Get Along?”
Dan Parnell
Permitting Section ManagerBureau of Environmental Services
April 18, 2016
Environmental Services l Presentation Title 2
Overview
• Pretreatment/FOG Program Goals• Plumbing Code Goals• Collaborating• Loading Factors
Environmental Services l Presentation Title 3
Common Goals ‐ Protection
• Protect public and sewer worker health
Sewer Use Ordinance
• Minimize public riskPlumbing
Code
Environmental Services l Presentation Title 4
Achieving Pretreatment/FOG Program Goals
…pollutants which cause obstruction…
Prohibited discharges:
Environmental Services l Presentation Title 5
Achieving Pretreatment/FOG Programs Goals
• How goals are achieved:
…require dischargers to install treatment facilities…
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
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…
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…
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?
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
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
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
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
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?
llaborating
pporting data found e…
here is data to determine if GRD can be dequately maintained?
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
Collaborating
timum GRD Outcomes:
andwich Shop
urger Joint
ok n Roll
They will, they will wok you…
llaborating
Cities with collaborative relationships
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:
llaboration
Focus on commonalitiesStay engagedFocus on fixesMake sure to manager your end
