Oklahoma Department of
Environmental Quality
Criminal Investigation Unit

Contact Us

Department Website:

Email: n/a

Mailing Address:

PO Box 1677
Oklahoma City, Oklahoma 73101-1677

Physical Address:

707 N Robinson
Oklahoma City, Oklahoma 73102

Phone Directory


Non-Emergency: (405)702-6156

Investigator Dennis Williams: (405)702-6157

Fax number for all investigators: (405)702-6118

24-hour hotline: 1-800-522-0206

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