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K.J. Williams Concrete Co. Inc.
Timothy L. Williams
K.J. Williams Concrete Co. Inc.
President, Owner
15213 McMullen Highway S.W.
PO Box 5137
Cresaptown, MD 21505-5137
Producer Member
(w) (301) 729-0303
(f) (301) 729-0304
(e) tldmw@verizon.net
States/Province Serviced: PA,VA,WV,MD

Kerkstra Precast Inc.
Tim Dood
Kerkstra Precast Inc.
3373 Busch Drive S.W.
Grandville, MI 49418-1341
www.kerkstra.com
Producer Member
(w) (616) 224-6176
(t) (800) 434-5830
(f) (616) 224-2651
(e) tdood@kerkstra.com
Produced Products: Septic Tanks; Manholes; Catch Basins; Grease Interceptors; Meter Pits; Hollowcore Floor Planks; Vaults; Barriers; Wall Panels; Beams

Kistner Concrete Products Inc. Lockport Plant
Michael J. Kistner
Kistner Concrete Products Inc. Lockport Plant
5550 Hinman Road
Lockport, NY 14094
www.kistner.com
Producer Member
(w) (716) 693-0174
(t) (877) 687-9255
(f) (716) 434-0138
(e) mikek@kistner.com
Produced Products: Utility Buildings; Precast Buildings; Architectural Movable Barrier; Architectural Light Foundations; Light Standards; Pull Boxes Transformer Pads; Utility MH’s; Vaults; Arch Bridge; Box Culverts; Drainage Inlets; Catch Basins; Barrier; Bridge Parapet Barriers; Erosion Control; Retaining and Sound Walls; Retaining Walls; Wing Wall System; Precast Basement Systems; Perm-Entry … Basement Entrance System; Stormwater Treatment Systems; www.ENV21.com; Stormwater filter systems; Leaching Pits; Utility Structures; Drywells; Stormwater Detention Systems 500 Gal. – 100,000 Gal. & Larger; Leaching Pits, Oil Water Separators; Manhole Structures – 10, 8, 6, 5, and 4-Foot Diameter; Septic Tanks - 500 Gal. – 100,000 Gal.; Utility Structures; Aeration Systems; Drywells; Distribution Boxes; Grease Interceptors

Knight's Precast
Todd Phillips
Knight's Precast
General Manager
PO Box 3467
Summerville, SC 29484
www.knightscompanies.com
Producer Member
(w) (843) 873-3011
(f) (843) 851-9190
(e) tphillips@knightscompanies.com
Produced Products: Sanitary and Stormwater Products; Catch Basins; Curb Inlets; Headwalls/Wingwalls; Risers; Manholes; Pump/Lift Stations; Stormwater Detention Structures; Box Culverts; Wetwells; Hand Holes; Meter Boxes; Pull Boxes; Utility Vaults

Kohala Coast Concrete & Precast LLC
Kevin M. Balog
Kohala Coast Concrete & Precast LLC
Supervisor
PO Box 406
Paauilo, HI 96776
Producer Member
(w) (808) 776-1652
(f) (808) 776-1750
(e) blogranch@aol.com
Produced Products: Parking Blocks; Modular Block Systems; Risers; Dry Wells.

KOI Precast Concrete Products Inc.
Jim Ryan
KOI Precast Concrete Products Inc.
Estimator/Sales
5719 Limaburg Road
Burlington, KY 41005
koiprecast.com
Producer Member
(w) (859) 371-4005
(f) (859) 371-0186
(e) jryankoi@yahoo.com
Produced Products: Parking Blocks; Landscape Products; Ramp Systems; Catch Basins; Headwalls/Wingwalls; Manholes; Pump/Lift Stations; Other Sanitary and Stormwater Products; Dry Wells; Grease Interceptors; Utility Structures; Meter Boxes; Panel Vaults; Pull Boxes
States/Province Serviced: IN,OH,KY

Koppenberg Enterprises Inc.
Kim Koppenberg
Koppenberg Enterprises Inc.
President
19030 Lenton Place S.E. #343
Monroe, WA 98272
www.koppenbergenterprises.com
Producer Member
(w) (800) 574-2481
(f) (360) 793-1622
(e) kim@koppenbergenterprises.com
Produced Products: Cremation Products