About Us
Granite State Onsite Wastewater Association
“Granite State Onsite Wastewater Association is a trade association of septic pumpers, designers, installers, and evaluators and consultants related to the onsite wastewater industry. We are governed by a volunteer Board of Directors that is elected by our membership.
Our Board of Director meetings are held monthly on the last Tuesday at 4:30 p.m. currently on Zoom. Board meetings are open to all members. We’d love to have you join us. Use the Contact Us tab above to request the Zoom link for the meetings.
2025-2026 Officers and Board of Directors:
Chris Albert
Chairman
CSA Environmental Consultants, LLC
36 Stage Road
Nottingham, NH 03290
Tel. (603) 706-2521
Kimberly DeMartin
Executive Director
Concord, NH 03301
Tel. (603) 228-1231 x 2007
Kevin Kent
Director
Kent Clean Septic Service, LLC
$B Crane Way
Hooksett, NH 03106
Tel. (603) 668-5368
Kim Hatch
Director
539 Green Hill Road
Center Conway, NH 03813
Tel. (603) 733-8667
Thomas Canfield
Director
Thomas Canfield Earth Construction 107 Betts Road
Rochester, NH 03867
Tel. (603) 332-1413
Dave Mankus
Director
Lake Forest Resort, Inc.
PO Box 713
Wolfeboro Falls, NH 03896
Tel. (603) 569-6186
Carl Hagstrom
Vice Chairman-Designers
Monadnock Septic Design, LLC
P.O. Box 536
Fitzwilliam, NH 03447
Tel. (603) 585-2272
James Hanna
Vice Chairman-Installers
J.D. Hanna Excavating
195 Couchtown Road
Warner, NH 03278
Tel. (603) 456-2417
Lawrence Maznek
Vice Chairman-Pumpers
Maznek Septic Service, LLC
41 Wendover Way
Bedford, NH 03110
Tel. (603) 471-1415
Bruce Fillmore
Secretary-Treasurer
Septic Assistant
181 Gould Road
Weare, NH 03281
Tel. (603) 529-0858
Aaron Wechsler
Immediate Past Chairman
Aspen Environmental Consultants, LLC
893 Valley Road
Washington, NH 03280
Tel. (603) 848-5606
2025-2026 Committee Chairpersons:
James Hanna
Membership
J.D. Hanna Excavating
195 Couchtown Road
Warner, NH 03278
Tel. (603) 456-2417
Chris Albert
Legislative Committee Chairman
CSA Environmental Consultants
36 Stage Road
Nottingham, NH 03290
(603) 706-2521
Thomas Canfield
Septic Evaluator
Thomas Canfield Earth Construction
107 Betts Road
Rochester, NH 03867
Tel. (603) 332-1413
Vacant
Scholarship
Vacant
Programs
Vacant
Finance Committee Chairman
Carl Hagstrom
Convention
Monadnock Septic Design, LLC
P.O. Box 536
Fitzwilliam, NH 03447
Tel. (603) 585-2272
Vacant
Public Relations
Vacant
Affiliate Representative
External Board/Council Representatives
Ex-Officio Executive Board Members:
Jonathan Ohler
J.W. Ohler, Inc.
New London, NH
Tel. (603) 763-7440
Randy R. Orvis
Geometres Blue Hills, LLC
Farmington, NH
Tel. (603) 59-2367