Individual CIOWTS Credential Holders

Please note all those appearing on this list hold an active CIOWTS credential with NEHA. If a credential's expiration date is past due, it is possible the credential holder is working with NEHA to bring the credential up to date. If you have questions with regard to the information posted please contact the NEHA Credentialing Department at 303-756-9090 ext. 310 or email any inquiries to credentialing@neha.org.

Find a CIOWTS Credential Holder in Your Area

City, state or credential holder's name

Scott Annaheim

Kinnelon Construction LLC
Kinnelon, NJ
Phone #: (973) 390-2608
Type: Advanced
Credential expiration date: 1/31/2019

Scott Serafin

Serafin Excavating
Kinnelon, NJ
Phone #: (973) 865-3358
Type: Advanced
Credential expiration date: 1/31/2019

Todd A. Masker

Masker Enterprises, Inc.
Lafayette, NJ
Phone #: (973) 219-1813
Type: Advanced
Credential expiration date: 3/31/2018

John Fitzsimmons

De John Equipment Co LLC
Lake Hopatcong, NJ
Phone #: (973) 713-5863
Type: Advanced
Credential expiration date: 2/28/2019

Roy Emr

Aaron Excavating Service Inc
Lake Hopatcong, NJ
Phone #: (973) 663-6058
Type: Advanced
Credential expiration date: 5/31/2019

George J. Tweedley, Jr.

Jim Tweedley LLC
Lake Hopatcong, NJ
Phone #: (973) 663-1479
Type: Advanced
Credential expiration date: 1/31/2019

George J. Tweedley

Jim Tweedley LLC
Lake Hopatcong, NJ
Phone #: (973) 663-1479
Credential expiration date: 1/31/2017

David P. Dobrowolski

DPD Contractors
Lambertville, NJ
Phone #: (609) 462-7223
Type: Advanced
Credential expiration date: 5/31/2018

Nancy E. Deal

State of North Carolina
Lancaster, SC
Phone #: (919) 707-5875
Type: Advanced
Credential expiration date: 12/31/2018

Rob K. Schessler

Schessler Ready Mix, Inc
Laurel, MT
Phone #: (406) 628-4221
Type: Advanced
Credential expiration date: 2/28/2018

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