PREFOG / Wastewater

Committee Information

Mission Statement

The mission of the PreFOG & Wastewater Committee is to develop a regional approach on technical, utility management, and regulatory issues that affect planning, building, and maintaining of wastewater utilities, with an emphasis for the reduction, elimination, and prevention of fats, oils, and grease in our wastewater system.

Chair:   Julie Dufresne,

Co-Chair:    Chair - Andrew Perez,


Upcoming  Actions:

We meet three times a year during the months of February, June, and October, from 10-Noon. Locations will vary to try and accommodate as many members as possible.

The next meeting: TBD

Past Meetings


  • 07/19/17 @ Trenchless Pipe Repairs, 13701 24th St E STE F-10, Sumner
    • Presentations by Vortex Infrastructures:
    • Trenchless Pipe Repairs
    • WinCan, 300 Cedar Ridge DR STE 308, Pittsburgh PA 15205
    • Quadex Lining Systems9155 Wallisville Road, Houston, TX 77029
    • Staf Technologies, 3791 S 300 W. South, Salt Lake, UT 84115
  • 02/22/17 @ LOTT Clean Water Alliance, 500 Adams St NE, Olympia
    • Presentation by OnlineRME LLC, 814 Airway Avenue,  Sutherlin, OR 97479
    • Minutes: Feb 22, 2017 Minutes


  • 11/09/16 @ King County South Treatment Plant, 1200 Monster Rd SW
    • Presentation by Johnson Industries, 1015 S Myrtle St, Seattle
    • Big Dipper & Trapzilla demonstrations
  • 08/16/16 @ Center for Urban Waters, 326 East D street, Tacoma
    • Presentation by:
    • Endura Interceptors demonstration
    • Schier Interceptors demonstration
  • 05/01/16 @ Pierce County PW, 9850 64th Street W, University Place
    • Presentation by Andrew Perez
    • Asset Management & TV inspection Program w/ field demo
  • 02/10/16 @ LOTT Clean Water Alliance

News Bulletins

New from the City of Vancouver

Treatability and Impacts of gDiaper™ Disposable Diapers within Municipal Sewer and Wastewater Systems


See the Outreach/Education/Articles section below for hot off the press news on wipes!

New Legislation from New York City on Flushable Products
Legislation Details

In-Sewer Test for Wipes

Frank Dick (City of Vancouver) and Rob Villee (Plainfield Area Regional Sewerage, New Jersey) tested out several "flushable" wipes. Contact Frank Dick if you're interested in reading about his findings,

Have You Seen Me? 

Flushable wipes mailed to residents: is anyone else seeing these free wipes being sent out in the mail? Yikes... and the packaging specifically says “FLUSHABLE.” If anyone has had these sent out in their service areas, please let Frank Dick know!

Links and Resources

FOG 101: Basics of Fats, Oils, and Grease Management

Opportunities and Challenges in 21st Century Fats, Oils, and Grease Management

FOG One Year Notice Letter

FOG Agreement

If it’s a Grease Interceptor then why not size by grease production?

Clear the FOG

Grease Interception in the Plumbing Code

A Guide to Restaurant Grease Management, A Regulator’s Desk Reference 

Plumbing & Drainage Institute

Grease Trap

Washington Wastewater Collection Personnel Association Study Resources

Preferred Pumper Program

King County Industrial Waste Program


 (The Daily Telegraph)

Resource Materials

Here are two Seattle Public Utilities Fats, Oil and Grease (FOG) outreach and education flyer examples.
These are examples that other agencies are also distributing in our Westside region to sewer customers. This is a joint education/outreach campaign for fighting and reducing our FOG problems in sewers (Seattle, Redmond, Bellevue, Kirkland, and Lynnwood are current participating cities).

I & I Data Collected
Sample Job Descriptions
FOG Logos 

    Total Member : 39
  • Mr. Bob Bandarra
  • Ms. Julie A. Howell, PE
  • Mr. Terry Smith
  • Mr. Ted Stonebridge
  • Ms. Julie Dufresne
  • Mr. Andrew C. Perez
  • Mr. Alan Aplin
  • Mrs. Caitlin Hubbard, MS
  • Mr. Clayton Brown
  • Mr. Dan Smith
  • Ms. Diane Utter
  • Mr. Ernest Fix
  • Mr. Frank Dick
  • Mr. Joshua Pantzke
  • Mr. Jon A. McKinnon
  • Mr. Kelly Graham
  • Ms. Stephanie Seivert
  • Mr. Scott Egger
  • Mr. Terry Cargil
  • Mr. Vincent Chavez
  • Ms. Ashley B. Baldwin
  • Mrs. Caroline E. Barlow, PE
  • Mr. Cris Horbelt
  • Mr. Dave Voigt
  • Ms. Debra Overbay
  • Mr. Dennis J. Lightburn
  • Mr. Don Zuern
  • Mr. Donald J. Mangis
  • Mr. Duane Lee Huskey, PE
  • Mr. Eric M. Smith
  • Mr. Eric M. Smith
  • Ms. Kim L. Thur
  • Ms. Laura Reed
  • Mr. Marcus S. Goodman
  • Mrs. Melissa Wu, PE
  • Mr. Peter Benedict Cunningham, PE
  • Mr. Scott A. Schafer
  • Ms. Stella Veron Vakarcs, PE
  • Mr. Steve Dunphy

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