DEQ Water






Access to clean water is essential to human health and to Montana’s economy. We support and implement measures to conserve this valuable resource and ensure clean lakes, streams, and rivers remain part of Montana’s natural heritage.

Citizen Science on Smith River

DEQ and Fish, Wildlife & Parks recently announced a new mobile application that engages citizens to collect information on algae growth in the Smith River. The Smith is accessed via FWP's permitted float system. Successful applicants can use cell phone images to record and report algae conditions on river trips.            

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New Online Water Permitting System -- FACTS

FACTS is DEQ's online system to apply for and manage wastewater and stormwater discharge permits. All permits, individual surface and groundwater, as well as general permits, are included in the system.  Fees, Applications, and Compliance Tracking System (FACTS).

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