Transcript Fats, Oil and Grease Beautiful Downtown Burbank

Fats, Oil and Grease
Beautiful Downtown Burbank
Presenters: Juan Gonzalez, and
Stacey Christian
Support: Randy Mark
Fats, Oil & Grease
Collection System & POTW
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Impacts
CMOM
POTW
Environment
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Background
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Fats, Oil, and
Grease, also called
FOG in the
wastewater business
can have negative
impacts on
wastewater
collection and
treatment systems.
Commercial
Residential
Industrial
Wastewater Treatment Plant
What is FOG?
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Comes from food sources:
animal and plant
Compound fatty acids and
glycerol
Large O&G molecules are
>150 microns (when free
floating)
Hydrophobic – insoluble in
water
Hardens and accumulates in
sewers – Results in Blockages
Processes that generate FOG
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Food Preparation
Cooking
Baking
Frying with Oil
Cleaning Utensils,
Dishes, Pots & Pans
Cleaning of Floors
Blockages
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Blockages Result in:
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Sewer spills
Manhole overflow
Sewage back-ups in
homes or businesses
Sewer Spills, Overflows and
Back-Ups
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Sewage spills, overflows, and
back ups occur when
wastewater being transported
through underground pipes
overflows through a manhole,
cleanout, or broken pipes.
Sewage spills can potentially
cause health hazards, cause
damage to homes and
businesses, and threaten the
environment, local waterways,
and beaches.
Beautiful Downtown Burbank
City Crew Report
-Areas of Heavy & Medium Grease
Inspection of Grease Trap
Inspection of Grease
Interceptors
Grease Interceptor Overflow
Investigation Findings
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Improperly sized
interceptors
Nonfunctional
Interceptors
Poor Operation and
Maintenance
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Lack of Service
Adding Enzymes
Lack of Interceptor
Lack of Understanding
Enforcement Cite
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40 CFR 403.5
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…Solid or viscous
pollutants in amounts
which will cause
obstruction to the flow in
the POTW resulting in
interference…
BMC 25-107
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…clarifiers….shall be
maintained in good
operating condition and
in conformity with
applicable law by the
owner of the property…
Solutions
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Train Inspectors
Implement Grease
Interceptor
Maintenance Plan
Include Interceptor
Maintenance in
Control Mechanism
Outreach
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BMPs
Solutions-Performance Standard
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Inspect Grease Interceptor
Interceptor Maintenance Plan
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Location of Interceptor
Interceptor Maintenance
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Frequency
Person Responsible
Rendering Company
Past History
Compliance Criteria
Problem Notification
Log
Evaluation – How do we know
it’s working?
Number of O&G reports
Reports of O&G in City Lines
7
6
5
4
Medium Grease
3
Heavy Grease
2
1
0
1999
2000
2001
Year
2002
2003
Questions?