- A.D. Energy Engineers
- Giancarli, Contractor
- Almec Engineering Inc.
- Anheuser Busch, Inc.
- Aquarion Water Company
- Aragona Utilities Corporation
- Ardmore Corporation
- Argentia Naval Base, Newfoundland
- Arma Textile Printers, Inc.
- Ausable Club, NY
- B. C. Associates
- B. J. Van Ingen, & Co.,Inc.
- Bayonne, NJ Bayside, Queens
- Beazer Homes
- Beckmere, Inc.
- Becton Dickinson & Company
- Bensalem Township Authority
- Bergen County Freeholders
- Bergen County Sewer Authority
- Birdsboro Steel Foundry & Machine
- Black & Veatch
- Bogota, Columbia
- Borough of Butler, NJ
- Borough of Caldwell, NJ
- Borough of Chester, NJ
- Borough of Englewood, NJ
- Borough of Haledon, NJ
- Borough of Matamoras, PA
- Borough of Montvale, NJ
- Borough of Sussex, NJ
- Borough of Wharton, NJ
- Boswell Engineering Corp.
- Bridgeport Hydraulic Co.
- Bristol-Myers Squibb Company
- Brokaw FG Buckingham Wastewater TP
- Buffalo, New York
- Camp, Dresser & McKee, Inc.
- Caribbean Electroplanting Inc.
- Carnegie-Illinois Steel Corp.
- Castelo’s Restaurant
- Children’s Aid and Family Services
- City of Camden, Dept. of Utilities, NJ
- City of Harbor Beach, MI
- City of Hopewell, VA
- City of Jersey City, NJ
- City of Lima, Ohio City of New York
- City of Newark, NJ
- City of Niagra Falls, NY
- City of Norwalk, CT
- City of Perth Amboy, NJ
- City of Rahway, NJ
- City of Saratoga Springs, NY City of Suffolk, VA
- City of Trenton, NJ City of Union City, NJ
- City of Virginia Beach
- City of Willimantic, CT
- City of Yonkers, NY
- Claiborne, Maryland
- Cliffwood Beach Water Co.
- Cohn Brothers
- Commonwealth Oil (Canals)
- Companhia Antarctica Paulista (Brazil)
- Consolidated Edison Company
- Costello Brothers, Inc.
- County of Bucks, PA
- County of Gloucester, VA
- County of Isle of Wight, VA
- CTS Group
- Dames & Moore
- Daniel Construction Company
- Deerhill Pool, Englewood, NJ
- Department of the Navy
- Dept. of Public Works, Puerto Rico
- DKM Properties Corp.
- Dorado Beach Development
- Drakes Bakery Wastewater TP
- E. F. Houghton & Co.
- E. I. Associates
- East Greenwich Water Supply Co.
- East Orange, NJ
- East Stroudsburg, PA
- East Windsor WWTP
- Eastern Building & Utility Company
- Educational Testing Service
- Elizabeth City, NC
- Elizabeth, NJ
- Elizabethtown Water Co. (American Water)
- Empresa de Acueducto y Alcantarillado (Columbia)
- Empresas Municipales De Cali (Columbia)
- Enviro Voraxial
- Erie County Water Authority
- ESSO (Canals)
- Ewing Township, NJ
- Ewing-Lawrence Sewerage Authority
- Geneva, NY
- Fagrave S. A., Barranquilla, Columbia
- Farmingdale, L.I.N.Y.
- Federal Works Agency
- Ferrante Electric
- Ferry Road Manor, Inc.
- Flemington Water Co.
- Florida Keys Aqueduct Commission
- Forest Park Water
- Four Seasons Resort Nevis
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- Frank G. Shattuck Co.
- Frederick Snare Corporation
- FTL Associates
- Geraghty & Miller, Inc.
- Girl Scout Council of Bergen County
- Goldens Bridge Cooperative Colony
- Golder Associates
- Gomez, Cajiao Y Asociados
- Gordon, Feinblatt, Rothman, Hoffberger & Holland
- Government of the Capital San Juan, PR
- Greenleaf/Telesca
- Grobart Mills
- Guantanamo Bay H. L.
- Harrison & Son, Inc.
- Hackensack Water Company
- Half Moon Condominium Association
- Hamilton Square Water Co.
- Hamilton Township, New Jersey
- Hamilton, Ewing and Lawrence Twsps., NJ
- Hampton Roads Sanitation District, VA
- Hartford Metropolitan District, CT
- Holiday Corporation
- Hollins College, Virginia
- Hopewell Regional Wastewater TP, VA
- Hudson, NY
- IBM Corporation
- Industrial Water Users Committee
- J. B. Williams Co.
- J. Fletcher Creamer & Son, Inc.
- Jim Ayers
- Joint Sewer Board of Union City, NJ
- K & S Canning, Inc.
- K. Hovnanian Companies of New Jersey
- Kolmar Laboratories, Inc.
- Lackawanna County, PA
- Lake Lookover Property Owners Assoc.
- Lakedale Development
- Layne Christensen
- Leggette, Brashears & Graham
- Leonia, NJ
- Lichtenstein Consulting Engineers
- Life Savers Manufacturing, Inc.
- Lima Ohio Community Development
- Lincoln Park Borough, NJ
- Lincoln Park Water Company
- Linwood Engineering Associates, P. A.
- Little Dix Bay, Virgin Gorda
- Lockport, NY
- Manchester Water Co.
- Marian Shrine, NY
- Marine Protein Corporation
- Massapequa Water District
- Menlo Engineering Associates, Inc.
- Merrill Shepard, Alpine, NJ
- Middlesex Water Company
- Minter’s Candies, Inc.
- Monmouth Park Jockey Club
- Monroe County Water Authority
- Montclair, NJ Montgomery Watson
- Moretrench American Corporation
- Morris County MUA
- Mr. Good Buys
- Municipality of Guayaguil (Ecuador)
- Neshaminy Water Resources Authority
- New Haven Water Co.
- New Jersey Division of Property Management & Construction
- New Jersey Water Supply Authority
- New Rochelle Water Co.
- Newburgh, New York
- North Bergen MUA
- North Hudson Sewerage Authority
- Northrop Grumman
- Norden Systems, Inc.
- Northwestern New York Water Authority
- Norwalk, Connecticut
- Norwich, Connecticut
- Nyack, NY
- Olean, New York
- Packanack Lake Country Club & Community Assoc.
- Packanack Lake, Inc.
- Palisades General Hospital
- Passaic Valley Water Commission
- Paulinskill Lake Corporation Water Supply System
- Seneca Falls, NY
- Power Authority of States of New York
- Princeton Water Company
- Public Utilities Commission
- Puerto Rico Aqueduct & Sewer Authority
- Ralph E. Ogden Estate
- Randolph Water Company
- River Ridge Condominium Association
- Rivervale Realty Company, Inc.
- Portaupeck Water Company
- Port Jervis, NY
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- Senior Y Viana LTDA
- Servicio Cooperativo Interamericano de Salud
- Solitude Village Condominium Association
- Somerville Water Co.
- South Jersey Pump And Tank Service
- South Norwalk, CT
- Split Rock Partnership
- Spring Valley Water Co., Inc.
- Spring Valley Water Works and Supply
- Spruce Hills Condominium Association
- Squibb Manufacturing
- Squibb Plant, Humacao, PR
- State of New Jersey Division of Building and Construction
- Sterns & Weinroth
- TES. Inc.
- Texaco Plant, Catano, PR
- The American Appraisal Company
- The Citizens Water Supply Co. Of Newton
- The Connecticut Water Company
- The Guilford‑Chester Water Co.
- The Mennen Company
- The Mount Holly Water Company
- The Newark Public Schools
- The Newtown Artesian Water Company
- The Penns Grove Sewerage Authority
- The People’s Water Co.
- The Prudential Insurance Company
- The Rockville Water & Aqueduct Co.
- The Town of Bloomfield, New Jersey
- Thomaston Water Company
- Tippets-Abbett-McCarthy-Stratton
- Town of Fairfield, CT
- Town of Manchester, CT
- Township of Buckingham, NJ
- Township of Matawan, NJ
- Township of Morris, NJ
- Township of Princeton, NJ
- Township of Roxbury, NJ
- Township of South Orange Village, NJ
- Trenton Engineering Co.
- Tri-City Sewerage Authority
- U. S. Army Corps Of Engineers
- U. S. Fidelity & Guarantee Co.
- U. S. Water Inc.
- United States Land Resources, L. P.
- United Water Delaware
- United Water Hoboken
- SUEZ Jersey City
- United Water Lambertville
- United Water Mid‑Atlantic
- Veolia Water New Jersey, Inc.
- United Water New Rochelle
- Veolia Water Westchester, Inc.
- Veolia Water New York, Inc.
- United Water Pennsylvania (Harrisburg)
- SUEZ Rahway
- United Water Resources
- SUEZ Rhode Island
- United Water Toms River
- University of Puerto Rico, Mayaguez Campus
- Village of Freeport, Long Island, NY
- Village of Hamburg, NY
- Village of Herkimer, NY
- Warren Township, Michigan
- Washington Township MUA
- Wehran Engineering, P. C.
- West New York MUA
- West Virginia Water Service Co.
- Westfield, NJ Wickhen Products, Inc.
- Wiley & Wilson
- Worthington Service Corporation
- Wright & Kremers, Inc.
- Wrightstown Sewerage Authority
- Wurtsboro, New York
- York County, Virginia
- Roller Bearing Co. Of America
- Rossotti Lithograph Corp.
- Roy F. Weston, Inc
- Rutledge Home, Inc.
- Rutledge Street (Brooklyn)
- Rutledge Village, Inc., Ewing Manor Development S.
- Strook & Co., Inc., Newburgh, NY
- Scarinci & Hollenbeck
- Schuylkill Township
- Scovil, Brown & Associates
- Secaucus Municipal Utilities Authority
- Second Taxing District, Norwalk, CT
- PDM Utility Corporation
- Penecost, Deal & Associates
- Perth Amboy, NJ
- Pierce Roberts Rubber Co
- Pintinalli Realty Co.
- Plainfield Union Water Company
- Plainville Water Company
- Port Chester And Rye, NY
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