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

Curt L. Coghlan

Polk County Public Works
Des Moines, Iowa
Phone #: (515) 865-5531
Type: Basic
Credential expiration date: 1/31/2021

Christopher Van Hook


Dingmans Ferry, Pennsylvania
Phone #: (203) 515-4253
Type: Advanced
Credential expiration date: 1/31/2021

Eugene C. Bassett

E C Bassett Construction Inc
Edgewood, New Mexico
Phone #: (505) 264-5626
Type: Advanced
Credential expiration date: 2/28/2020

Charles J. Maatje

C&M Construction
Egg Harbor City, New Jersey
Phone #: (609) 517-5580
Type: Advanced
Credential expiration date: 1/31/2021

David H. Booth

Booth Construction
Egg Harbor Township, NJ
Phone #: (609) 432-4170
Type: Advanced
Credential expiration date: 8/31/2019

James E. Cheeseman

C & H Disposal Service, Inc.
Elmer, New Jersey
Phone #: (856) 358-3813
Type: Advanced
Credential expiration date: 3/31/2021

David Johnson

Marksmen Enterprises, LLC
Essex Fells, New Jersey
Phone #: (973) 364-0225
Type: Advanced
Credential expiration date: 12/31/2019

Vernon Pierce

Pierce Septic
Fairton, New Jersey
Phone #: (856) 451-1526
Type: Advanced
Credential expiration date: 1/31/2021

Gerald Freeman

Triple J's Septic Service
Farmingdale, New Jersey
Phone #: (732) 751-0152
Type: Advanced
Credential expiration date: 1/31/2021

Jeremy T. McAllister

Professional Waste Water Services, Inc
Farragut, Iowa
Phone #: (712) 246-4312
Type: Advanced
Credential expiration date: 2/28/2021

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