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Fats, Oils, & Grease (FOG) Fats, Oils, & Grease (FOG) - - PowerPoint PPT Presentation
Fats, Oils, & Grease (FOG) Fats, Oils, & Grease (FOG) - - PowerPoint PPT Presentation
Workshop for Area 7 Workshop for Area 7 Fats, Oils, & Grease (FOG) Fats, Oils, & Grease (FOG) PROPOSED Program and Ordinance PROPOSED Program and Ordinance Orange County Sanitation District Orange County Sanitation District August 3,
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What is the Problem? What is the Problem?
FOG is causing blockages and sewer
- verflows in:
FOG is causing blockages and sewer
- verflows in:
Drain lines Private sewer
laterals
Main sewer lines
and lift stations
Drain lines Private sewer
laterals
Main sewer lines
and lift stations
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Sanitary Waste Drain Grease Int. Food Service Establishment Grease Waste Drain Grease Waste Drain Sewer Main Combined Waste Lateral
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Too Much FOG is Being Discharged into Kitchen Drains Too Much FOG is Being Discharged into Kitchen Drains
Fryer drippings, spills Grills, woks Dishwashing Garbage disposals
(food grinders)
Fryer drippings, spills Grills, woks Dishwashing Garbage disposals
(food grinders)
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There are Many Sources
- f FOG
There are Many Sources
- f FOG
Food service establishments Homes Apartment buildings Food service establishments Homes Apartment buildings
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Grease Removal Devices (GRDs) – Grease Interceptors or Traps Grease Removal Devices (GRDs) – Grease Interceptors or Traps
Removes grease before it causes
sewer blockages
Most FSEs have no GRD installed Many installed are not cleaned
- r maintained adequately
Removes grease before it causes
sewer blockages
Most FSEs have no GRD installed Many installed are not cleaned
- r maintained adequately
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Why Are We Here?
2001 OC Grand Jury Report
Why Are We Here?
2001 OC Grand Jury Report
Most sewer
- verflows are
caused by FOG blockages
Sewer overflows
result in health hazards, beach contamination and closures
Most sewer
- verflows are
caused by FOG blockages
Sewer overflows
result in health hazards, beach contamination and closures
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Why Are We Here?
Waste Discharge Requirements (WDR) Order No. R8-2002-0014
Why Are We Here?
Waste Discharge Requirements (WDR) Order No. R8-2002-0014
Issued by state Generally agreed with Grand Jury findings All north Orange County sewer system
- perations must have FOG Control
Programs in place by Dec. 2004
OCSD operates the sewer system for the
City of Tustin and a few small neighboring areas
Issued by state Generally agreed with Grand Jury findings All north Orange County sewer system
- perations must have FOG Control
Programs in place by Dec. 2004
OCSD operates the sewer system for the
City of Tustin and a few small neighboring areas
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WDR Requirements WDR Requirements
Limit grease discharges that may cause
blockages
Prohibit FOG discharges that may cause
sewer overflows
Adopt and enforce an ordinance, inspect
FSEs
Require implementation of kitchen best
management practices (BMPs)
Limit grease discharges that may cause
blockages
Prohibit FOG discharges that may cause
sewer overflows
Adopt and enforce an ordinance, inspect
FSEs
Require implementation of kitchen best
management practices (BMPs)
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WDR Requirements (cont’d) WDR Requirements (cont’d)
Require installation of grease removal
devices, as necessary
Implement source control measures for
sewer line “hot spots”
Require installation of grease removal
devices, as necessary
Implement source control measures for
sewer line “hot spots”
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Proposed OCSD FOG Control Program Proposed OCSD FOG Control Program
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Goals – FOG Control Program Goals – FOG Control Program
No FOG related sewer overflows Control FOG through education, permitting,
and enforcement
Develop a program that is fair and equitable No FOG related sewer overflows Control FOG through education, permitting,
and enforcement
Develop a program that is fair and equitable
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Basics – FOG Control Program Basics – FOG Control Program
Implement kitchen BMPs Install grease interceptors,
when necessary
Implement kitchen BMPs Install grease interceptors,
when necessary Prevent FOG from going down the drain!
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Studying the Problem First Studying the Problem First
Orange County FOG Control Study findings
and recommendations
Local FOG Characterization Study
Inspect all FSEs Map sewer system “hot spots” Camera inspection of the sewer lines and
individual FOG sources
Orange County FOG Control Study findings
and recommendations
Local FOG Characterization Study
Inspect all FSEs Map sewer system “hot spots” Camera inspection of the sewer lines and
individual FOG sources
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FOG Source Identification FOG Source Identification
Identification of significant grease from an individual lateral Identification of significant grease from an individual lateral
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Basis – FOG Control Program Basis – FOG Control Program
Design Program Equity:
Logical minimum requirements for all FSEs Case-by-case additional requirements for
FSEs that may potentially cause or contribute to a blockage or sewer overflow
Strike a balance between cost and
environmental benefit
Issue waivers / variances until it becomes
necessary to go further Design Program Equity:
Logical minimum requirements for all FSEs Case-by-case additional requirements for
FSEs that may potentially cause or contribute to a blockage or sewer overflow
Strike a balance between cost and
environmental benefit
Issue waivers / variances until it becomes
necessary to go further
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Grease Interceptors OCSD Grants Grease Interceptor Conditional Waiver
- r Variance *
FSE Permit Violations Continued Permit Violations Grease Interceptor or Approved Alternative New FSE Waiver/Variance YES Revoke Waiver or Variance NO YES NO YES Revoke Waiver or Variance NO Existing FSE New/Remodeled FSE End Conditional Waiver OCSD Program Evaluation FSE Causes or Contributes to Blockage or SSO Kitchen BMPs All FSEs
* A waiver or variance may not be granted for existing FSEs that are already identified as significant sources of FOG
OCSD Proposed OCSD Proposed FOG Control Program FOG Control Program
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Structure – FOG Control Program Structure – FOG Control Program
FOG Control Ordinance – scheduled for
adoption by Dec 2004
Individual permits – issued by January 2005 Enforcement – inspections of sewer lines,
grease interceptors, kitchen BMPs
Fees FOG Control Ordinance – scheduled for
adoption by Dec 2004
Individual permits – issued by January 2005 Enforcement – inspections of sewer lines,
grease interceptors, kitchen BMPs
Fees
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Core Elements – FOG Control Program Core Elements – FOG Control Program
Permit:
Required for all FSEs explaining the
program requirements
Exemption for limited food prep
establishments (e.g., no on-site cooking or dishwashing) Permit:
Required for all FSEs explaining the
program requirements
Exemption for limited food prep
establishments (e.g., no on-site cooking or dishwashing)
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Core Elements – FOG Control Program Core Elements – FOG Control Program
Prohibitions:
No food grinders (garbage disposal units)
for new or existing FSEs – 180 days to retrofit
No emulsifying additives, no use as a
supplement to interceptor maintenance
No disposal of waste cooking oil into drains
Prohibitions:
No food grinders (garbage disposal units)
for new or existing FSEs – 180 days to retrofit
No emulsifying additives, no use as a
supplement to interceptor maintenance
No disposal of waste cooking oil into drains
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Core Elements – FOG Control Program Core Elements – FOG Control Program
Prohibitions:
No discharge of wastewater from
dishwashers into grease trap or interceptor
No toilet discharge into grease interceptor No interceptor waste into the sewer system 25% Rule on grease interceptor operation
Prohibitions:
No discharge of wastewater from
dishwashers into grease trap or interceptor
No toilet discharge into grease interceptor No interceptor waste into the sewer system 25% Rule on grease interceptor operation
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Fees – FOG Control Program Fees – FOG Control Program
Estimated at $100 Permit Fee Noncompliance Fee at $100 per event No additional fees Estimated at $100 Permit Fee Noncompliance Fee at $100 per event No additional fees
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Proposed OCSD FOG Ordinance Proposed OCSD FOG Ordinance
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Core Elements – FOG Ordinance Core Elements – FOG Ordinance
Kitchen BMP Requirements:
Installation and use of drain screens Segregation, collection, and recycling
- f cooking oil
Disposal of food waste into the trash Proper maintenance of kitchen
exhaust filters
Kitchen signage Employee training
Kitchen BMP Requirements:
Installation and use of drain screens Segregation, collection, and recycling
- f cooking oil
Disposal of food waste into the trash Proper maintenance of kitchen
exhaust filters
Kitchen signage Employee training
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Core Elements – FOG Ordinance Core Elements – FOG Ordinance
FOG Pretreatment requirement for new and remodeled FSEs:
Requirement for standard dischargers Require space and plumbing segregation
considerations for insignificant dischargers
Remodel triggers
Substantial change in discharge $50,000 remodel
FOG Pretreatment requirement for new and remodeled FSEs:
Requirement for standard dischargers Require space and plumbing segregation
considerations for insignificant dischargers
Remodel triggers
Substantial change in discharge $50,000 remodel
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Core Elements – FOG Ordinance Core Elements – FOG Ordinance
FOG Pretreatment requirement for existing FSEs:
Insignificant dischargers – conditional waiver Standard dischargers –
3-year conditional waiver for most (more detail later) Installation required within 180 days of notification Variance with an approved alternative pretreatment
technology
Waiver with grease disposal mitigation fee where
grease interceptor is not feasible due to space or plumbing slope issues
FOG Pretreatment requirement for existing FSEs:
Insignificant dischargers – conditional waiver Standard dischargers –
3-year conditional waiver for most (more detail later) Installation required within 180 days of notification Variance with an approved alternative pretreatment
technology
Waiver with grease disposal mitigation fee where
grease interceptor is not feasible due to space or plumbing slope issues
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Core Elements – FOG Ordinance Core Elements – FOG Ordinance
Grease Interceptors:
Design follows California plumbing code Maintenance requirements
Must pump-out completely before 25% full of FOG
and / or solids
Must maintain records Compliance will be verified through inspections 90-day minimum pump-out frequency Variance request required for 3-6 months
pump out frequency
Grease Interceptors:
Design follows California plumbing code Maintenance requirements
Must pump-out completely before 25% full of FOG
and / or solids
Must maintain records Compliance will be verified through inspections 90-day minimum pump-out frequency Variance request required for 3-6 months
pump out frequency
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Core Elements – FOG Ordinance Core Elements – FOG Ordinance
3-year Conditional Waiver for Existing FSEs:
Waiver can be revoked based on
noncompliance or identification as a significant source of FOG
Encourages Kitchen BMPs by all FSEs Allows considerations for alternatives FOG control program will be reevaluated
along with the waiver 3-year Conditional Waiver for Existing FSEs:
Waiver can be revoked based on
noncompliance or identification as a significant source of FOG
Encourages Kitchen BMPs by all FSEs Allows considerations for alternatives FOG control program will be reevaluated
along with the waiver
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Adoption Process – FOG Ordinance Adoption Process – FOG Ordinance
Current Schedule:
Oct 27, 2004 – First Reading,
OCSD Board Meeting
Nov 17, 2004 – Second Reading,
OCSD Board Meeting
Dec 28, 2004 – Adoption by OCSD Board
Current Schedule:
Oct 27, 2004 – First Reading,
OCSD Board Meeting
Nov 17, 2004 – Second Reading,
OCSD Board Meeting
Dec 28, 2004 – Adoption by OCSD Board
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Immediate Impacts on FSEs Immediate Impacts on FSEs
All FSEs required to follow Kitchen BMPs FSEs with grease interceptors required
to pump them out quarterly, at a minimum
Most existing FSEs without grease
interceptors will receive a conditional waiver
Some existing FSEs without grease
interceptors required to retrofit their facility
All FSEs required to follow Kitchen BMPs FSEs with grease interceptors required
to pump them out quarterly, at a minimum
Most existing FSEs without grease
interceptors will receive a conditional waiver
Some existing FSEs without grease
interceptors required to retrofit their facility
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Long-Term Impacts on FSEs Long-Term Impacts on FSEs
If program successful – little change If program unsuccessful – there will be
more stringent requirements
If program successful – little change If program unsuccessful – there will be
more stringent requirements
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