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Biodiversity wanes in New York
Throttling invasive species by TJ Sinnott
Bulwark for the Great Lakes and Hudson River by P Gerrity
Stopping ballast water "stowaways" by D Pughiuc
Biological pollutants in the Great Lakes by EL Mills, KT Holeck
Water quality signatures and the zebra mussel invasion by DA Matthews, SW Effler
Zebra mussel population dynamics: Implications for water quality modeling by CL Lange, DR Opdyke, JC Powers
Bad seeds: an introduction to invasive plants by AD Halpern, CA Boesse, AE Altor
You can help stop the plant invasion
President's message by D Ellis
Executive director's message by P Cerro-Reehil
Exhibitors at 73d Annual Meeting
Spring 2001 — Vol. 31, No. 1
Exhibitors at 73d Annual Meeting
NYWEA thanks the following companies for their generous participation at our 73d Annual Meeting in New York, February 2001:
| Aftek, Inc. | I.B.M.-East Fishkill |
| BAC - Killam | Infiltrator Systems, Inc. |
| Baker Engineering NY, Inc. | Jager / Process |
| BDP Industries, Inc. | Jones-MacCrea |
| Bendlin Incorporated | Judlau Contracting, Inc. |
| Blasland, Bouck & Lee Inc. | Koester Associates, Inc. |
| Blue Heron Construction LLC | Lawler, Matusky & Skelly Engineers |
| Burde Inc. | Liro Group |
| Burgh and Schoenenberger Associates | Lockwood, Kessler & Bartlett, Inc. |
| Black and Veatch Corp. | Malcolm Pirnie, Inc. |
| Cameron Engineering & Associates, LLP | Metcalf & Eddy of New York, Inc. |
| Camo Pollution Control, Inc. | Moffa & Associates Consulting Engineers |
| Camp, Dresser & McKee | Charles A. Manganaro Consulting Engineers |
| Carus Chemical Company | James McCullagh Co. Inc. |
| CH2M Hill | Merco Joint Venture |
| Bob Ryan Assoc. Inc.T/A Clearwater Services | Miller Pipeline Corp. |
| Brunel Corporation | Montgomery Watson |
| Consolidated Edison Company of New York, Inc. | New York Power Authority |
| Cooper Energy Services | New York Organic Fertilizer Co. |
| Cosper Environmental Services | O'Brien & Gere |
| Cytec Industries , Inc. | Parkson Corp. |
| CPE Services, Inc. | Preload Inc. |
| Dvirka and Bartilucci | Pitometer Pipeline Services, Inc. |
| Eaglebrook, Inc. | R & D Engineering, P.C. |
| Earth Tech | Rodney Hunt Co. |
| Eco Test Labs, Inc. | Sanitaire Corp. |
| Environmental Resources Management | Savin Engineers P.C. |
| FPM Group | Silverite Construction Co.,Inc. |
| G.A. Fleet Associates, Inc. | Slattery Skanska, Inc. |
| Gannett Fleming Engineers & Architects | Spectraserv, Inc. |
| Gartner Equipment Co., Inc. | Standard Industrial Services, Inc. |
| Gebhart Industrial Sales Inc. | Staunton Chow Engineers, P.C. |
| General Contractors Association of N.Y. | Sear-Brown Group |
| Grande, Novac & Associates, Inc. | Severn Trent Environmental Services |
| Greeley & Hansen | Stearns & Wheler |
| Dave Heiner Associates, Inc. | Stedt Hydraulic Crane Corp. |
| H2M Group | Stockhausen |
| Halcyon Construction Co. | TAMS Consultants, Inc. |
| Fredric R. Harris | Tisdel Associates |
| Hazen & Sawyer, P.C. | URS Greiner Woodward Clyde |
| Henningson, Durham & Richadson, A&E, P.C. | Waste Stream Environmental, Inc. |
| Hitachi Maxco, Ltd | Wastecorp Inc. - Marlow Pluger Pumps |
| Hydropress Environmental Services, Inc. | Wemco Pump |
| Hydroqual Inc. | We-Care Transportation |
| Infilco Degremont Inc. | Westfalia Separator |
| ITT Flygt Corporation | Westin Engineering, Inc. |
| YSI | Xero Inc. |
Executive Director