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

William Longo

Lortech Engineering
Freehold, New Jersey
Phone #: (732) 863-1405
Type: Advanced
Credential expiration date: 1/31/2019

Fred Shaffer


Furlong, Pennsylvania
Phone #: (610) 428-0182
Type: Advanced
Credential expiration date: 12/31/2019

Ronald S. Milkowski

A.S. Milkowski & Sons
Glen Gardner, New Jersey
Phone #: (908) 537-2590
Type: Advanced
Credential expiration date: 9/30/2019

David LaTourette

David L Construction & Excavating, LLC
Greenwich, New Jersey
Phone #: (856) 455-0444
Type: Advanced
Credential expiration date: 3/31/2019

Louis Sanders

Lou Sanders Excavating
Hamburg, New Jersey
Phone #: (973) 827-2542
Type: Advanced
Credential expiration date: 1/31/2019

Vince Geditz


Hermosa, South Dakota
Phone #: (605) 431-1710
Type: Basic
Credential expiration date: 5/31/2018

Ralph Utter

Utter Excavating LLC
Hewitt, New Jersey
Phone #: (973) 853-4324
Type: Advanced
Credential expiration date: 2/28/2019

David Arthur Sisco-Izak, Jr.

Sisco Services LLC
Hewitt, NJ
Phone #: (201) 749-2415
Type: Advanced
Credential expiration date: 1/31/2018

Ralph Utter, Jr.

Utter Excavating LLC
Hewitt, NJ
Phone #: (973) 390-6345
Type: Advanced
Credential expiration date: 2/28/2019

Chris Darmstatter

Darmstatter Excavating LLC
Highland Lakes, New Jersey
Type: Advanced
Credential expiration date: 12/31/2019

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