developing an fog program - mi-wea.org · 2. regulate fog activities d. require best management...
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Developing an FOG Program
David R. Alkema, NWWO
KAR Laboratories, Inc.
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OMG! Is this what you deal with?!
Well, not entirely…
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“Another SSO? Oh well, we needed something to do today!”
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Goal of an FOG Program
Prevent blockages, overflows (multiple benefits)
- protect human health
- protect the environment
- avoid property damage
- minimize remediation/maintenance costs
- increase operating efficiency
- make operators and workers happier!
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Objectives of an FOG Program
Goal: To prevent blockages and overflows…
Minimize FOGs
entering the system
Inspect and maintain
the system
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Minimize FOGs entering the system
1. Perform a system characterization study a. Locate all FOG sources - food service establishments (FSEs) (restaurants, commissaries, caterers, butchers, delis,
cafeterias, etc.)
- high-density residential areas - car wash establishments - high O&G surcharge entities - compile list and create map - update the list and map regularly
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Minimize FOGs entering the system
1. Perform a system characterization study
b. Identify high-maintenance sites
- frequent SSOs
- frequent cleaning
- structural weak spots
- high-risk flow areas
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Minimize FOGs entering the system
2. Regulate FOG activities
a. Establish legal authority
b. Regulate by permit
c. Regulate by local ordinance
Some pros and cons…
A dual approach…
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Minimize FOGs entering the system
2. Regulate FOG activities b. By permit - allows details on treatment, testing,
discharge limits, inspections, etc. - customize requirements based on flow, activity, location, types of FOGs, etc. - requires more up-front and ongoing effort; easy to revise; renewals - evaluate feasibility based on system and
available resources
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Minimize FOGs entering the system
2. Regulate FOG activities
c. By local ordinance
- one-source regulation
- ordinance wording can be too vague or general
- shared control with local authority
- slow approval/revision process
- less ongoing effort
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Minimize FOGs entering the system
2. Regulate FOG activities
d. Require best management practices (BMPs)
- daily kitchen activities at FSEs
- solids on plates/equipment/counter → trash
- three-sink washing system, skim solids
- water temperature ≤ 140˚F (60˚C)
- clean up small spills with paper, not towels
- clean up large spills with pads, block drain
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Minimize FOGs entering the system
2. Regulate FOG activities
d. Require best management practices (BMPs)
- prevent spills, timely empty, cover, use tools
- sink drain screens, 1/8”- 3/16”, basket, floor
- all FOG drains discharge to a grease removal device (GRD)
- clean mats, exhaust filters ahead of GRD
- fryer oil, bucket to outdoor drum/bin
- small container collection
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Minimize FOGs entering the system
2. Regulate FOG activities
d. Require best management practices (BMPs)
- don’t discharge emulsifying/bio agents
- GRD monitoring and maintenance
- employee training, initial and ongoing
- post BMPs, signage
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Minimize FOGs entering the system
2. Regulate FOG activities
e. Require GRDs be installed
- interior (grease trap)
> retain wastewater to allow separation
> flow-based, cleaned regularly
- exterior (grease interceptor)
> cleaned by licensed contractor
> monitored by FSE, responsibility
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Minimize FOGs entering the system
2. Regulate FOG activities
f. Implement the program
- select inspectors, informed and winsome
- train inspectors, consistent fieldwork
- prepare checklists and documents
- notify FSEs of expected requirements
- educate FSEs
- promulgate ordinance, issue permits
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Minimize FOGs entering the system
2. Regulate FOG activities
g. Education (FSEs)
- on-site meeting, presentation
- review BMPs, resources, literature
- stress recordkeeping
- on-site inspections
- collaborate with broader organizations
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Minimize FOGs entering the system
2. Regulate FOG activities
h. Compliance
- inspections, unannounced
- frequency based on FSE factors
- follow checklist, keep detailed records
- review training, BMPs being followed
- inspect GRDs, review records
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Minimize FOGs entering the system
2. Regulate FOG activities
i. Enforcement
- must address non-compliance, tiered
- deficiency notice, re-inspect
- violation notice, certified mail, re-inspect
- levy fines per the ordinance/permit
- downgrade permit to “provisional”
- revoke permit (cease operation)
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Minimize FOGs entering the system
3. Education/Outreach (public)
- inserts in sewer bills
- posters in public venues, on-door fliers
- participation in public events
- media, PSAs, website
- presentations at meetings, schools, apts.
- stickers on city vehicles, billboards
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Objectives of an FOG Program
Goal: To prevent blockages and overflows…
Minimize FOGs
entering the system
Inspect and maintain
the system
![Page 21: Developing an FOG Program - mi-wea.org · 2. Regulate FOG activities d. Require best management practices (BMPs) - prevent spills, timely empty, cover, use tools - sink drain screens,](https://reader035.vdocuments.mx/reader035/viewer/2022071013/5fcb52a57224157d656f3f6d/html5/thumbnails/21.jpg)
Inspect and maintain the system
1. Inspect for problems, real and potential a. System inspection - train inspectors (grease, cracks, corrosion, roots, etc.) - establish a regular schedule - high-priority, low-priority (flow, sags, turns) - inspect manholes and pipes - visual and/or remote camera - maintain records!
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This inspector really
gets into
his work!!!
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Inspect and maintain the system
1. Inspect for problems, real and potential
b. observed grease accumulation
- step up FOG inspections
- schedule cleaning
c. observed damage
- schedule service
d. centralize communication and scheduling!
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Inspect and maintain the system
2. Cleaning
- regularly scheduled (prevention)
- as needed (per inspection)
- remove grease, roots (FOG accum. sites)
3. Wastewater testing
- “grab” sample, not composite
- EPA Method 1664 (HEM and SGT-HEM)
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KAR Laboratories, Inc. 4425 Manchester Rd. Kalamazoo, MI 49001
(269) 381-9666 www.karlabs.com [email protected]
David R. Alkema