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

Aislinn Gandy

Fralinger Engineering, PA
Bridgeton, NJ
Phone #: (856) 451-2990
Type: Advanced
Credential expiration date: 3/31/2019

Harold R. Hedman, III

English Sewage Disposal Inc.
Bridgeton, NJ
Phone #: (856) 358-4771
Type: Advanced
Credential expiration date: 2/28/2019

Tobin Barkman

Toby Barkman Excavating, Inc.
Califon, NJ
Phone #: (908) 832-7757
Type: Advanced
Credential expiration date: 6/30/2018

Gary Wayne Kinsel

Kinsel Excavating Inc.
Canton, IL
Phone #: (309) 224-3782
Type: Basic
Credential expiration date: 9/30/2016

David A. Lepor

Centerline Services LLC
Cape May, NJ
Phone #: (609) 886-7407
Type: Advanced
Credential expiration date: 4/30/2019

David A Lepor

Centerline Services LLC
Cape May, NJ
Phone #: (609) 886-7407
Type: Advanced
Credential expiration date: 4/30/2017

Jeffrey Van Mourik


Cape May, NJ
Phone #: (609) 377-1875
Type: Advanced
Credential expiration date: 4/30/2019

Marv McLees

McLees Plumbing & Heating
Cascade, IA
Phone #: (563) 852-3612
Type: Basic
Credential expiration date: 1/31/2019

Kasandra Bilyeu

Linn County Public Health
Cedar Rapids, IA
Phone #: (319) 892-6000
Type: Basic
Credential expiration date: 8/31/2016

Heidi Peck

Linn County Public Health
Cedar Rapids, IA
Phone #: (319) 329-2934
Type: Basic
Credential expiration date: 8/31/2018

Pages