Compliance'''

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Dos and Donts of Grease Trap Inspections 25th
Annual EPA Region VI Pretreatment Association
Workshop August 5, 2009 Town of Addison, Texas
Neal Klimek, Industrial Pretreatment
Coordinator nealk_at_ci.rio-rancho.nm.us (505)
891-5017
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Publicly Owned Treatment Works
Restaurants
(Grease Trap)
Industries
Wastewater Treatment Plant
Sanitary Sewer Overflows
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Grease Vessel Inspection

• Type ?
• Design ?
• Gallon Capacity ?
• Location ?
• Structural Condition ?
• Operational ?

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Grease Interceptor
INLET
OUTLET
SEWER SYSTEM
Concrete Outdoor In-Ground Interceptor
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Grease Interceptor (1000-Gallon)
60 Inches
OUTLET CHAMBER
INLET CHAMBER
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Common Problems

• Unaware of Grease Interceptor
• One Access Port
• Straight Pipe
• Not Connected to Kitchen Drainage
• Broken Sanitary-Tees
• Backward Installation

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Weird Case Study

• Village Inn and Long John Silvers,
  Rio Rancho, New Mexico
• Outdoor Grease Interceptor Un-level in the
  ground.
• Village Inn-Inlet and Outlet Pipe extended above
  water surface.
• LJS-Vessel cracked in two due to Corrosion, as
  pulled out of ground. Replaced with new vessel
  and sampling port.
• Wisdom Careful and thorough observation of
  vessel structure and operation.

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Grease Trap
OUTLET
INLET
SEWER SYSTEM
Under-the-Counter Steel / Iron Model
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Smith Flow Control Fitting
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Grease Vessel Locations

• Grease Traps
• On Top of the floor
• Level with the floor
• DO NOT suspend under the counter (Theyre out
  there)
• Undersized and located outside. (Theyll plug
  with grease, develop corrosion and are hard to
  find.)

No backward installation!
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UNDER-THE-COUNTER GREASE TRAP
FLOW CONTROL FITTING
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Three Compartment Sink
Sanitize
Rinse
Wash
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Floor Grease Trap Inspection
OPENED
CLOSED
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Automatic Grease Recovery Unit
Grease floats to the top
Under-the-Counter Steel / Iron Model
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(No Transcript)
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Common Problems

• Unaware of Grease Trap
• Corroded Housing
• Backward Installation
• Not connected to Kitchen Drainage
• Under Gallonage Capacity
• Missing Flow Control Device
• Straight Pipe
• Missing Baffles
• Missing Lid Gasket

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Grease Vessel Manufacturers

• JFC
• Zurn
• Poly Trap
• Multi-Ceptor
• Josam
• Smith
• Wade
• Rockford
• MIFAB
• Proceptor
• WATT
• Others

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Weird Case Study

• Old and New Cazuelas Restaurants,
• Rio Rancho New Mexico
• Small Ten-Gallon capacity Grease Traps
• Pulled out of concrete floor
• 55 of Housing Corroded
• Wisdom Replaced by an outdoor 1500-gallon
  interceptor at each store.