City Construction Stormwater Permits are required for all land disturbances greater than 1,000 square feet within the City of Kalispell. The requirements for the permit are established by land disturbance size: (1) less than one acre, and (2) greater than or equal to one acre.
Applications will be considered incomplete until the permit fee has been paid. Fees can be paid online or by calling 406-758-7720.
The following activities are exempt from the requirement to obtain a City Construction Stormwater Permit:
Stormwater management is important for maintaining clean water and preserving streams, rivers, and lakes. The City of Kalispell's Storm Water Management Ordinance 1600 went into effect May 2, 2007, as mandated under the Federal Clean Water Act (CWA) and the Montana Pollution Discharge Elimination (MPDES) regulation. These regulations are designed to protect water quality in water bodies by reducing pollutants in stormwater that is carried into the storm conveyance systems and then into streams, rivers, and lakes.
Often construction begins with the removal of vegetation and grading of the site. The lack of ground cover makes these sites especially vulnerable to soil erosion. Sediment-laden water can be washed off-site and into lakes and streams. The sediment reduces the amount of sunlight reaching aquatic plants and smothers bottom dwelling-insects and fish.