Contact Us
Please click on one of the topics below to contact someone within the Division.
| Position | Contact | Telephone |
|---|---|---|
| Reception Area | (406) 841-5000 | |
| Division Administrator | Sandra Olsen | (406) 841-5001 |
| Public Information Officer | Mary Ann Dunwell | (406) 841-5016 |
| Fiscal Officer | Sherry Blair | (406) 841-5011 |
| Hazardous Waste Bureau | Mike Trombetta | (406) 841-5045 |
|
Denise Martin | (406) 841-5060 |
|
Jeff Kuhn | (406) 841-5055 |
|
Rebecca Ridenour | (406) 841-5059 |
| Abandoned Mines Bureau | John Koerth | (406) 841-5026 |
| Federal Superfund Bureau | Larry Scusa | (406) 841-5035 |
|
Joel Chavez | (406) 841-5031 |
Project/Site contact information is available as a PDF or MS Excel file. Both files have been sorted as follows:
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County
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City
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Site Category (e.g., State Superfund)
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Site Name

Headquarters:
1100 N. Last Chance Gulch
Helena, MT 59601
Mailing Address:
PO Box 200901
Helena, MT 59620-0901
Phone: (406) 841-5000

Kalispell Office
655 Timberwolf, Suite #3
Kalispell, MT 59901
Phone: (406) 755-8985
Billings Office
Airport Business Park IP-9
1371 Rimtop Drive
Billings, MT 59105-9702
Phone: (406) 247-4445
