§ 7-45. Operations; noise; hours; explosives, dust, water pollution; topsoil preservation.

The following operating standards shall be observed at the site of any operation permitted under this article:

(1)

The maximum noise level at the perimeter of the site shall be within the limits set by the Minnesota Pollution Control Agency and the Federal Environmental Protection Agency.

(2)

Earth work shall be performed during only those times established by the city council as part of the permit unless otherwise provided in the permit. Such activity may only take place between the hours of 7:00 a.m. and 6:00 p.m. Monday through Saturday. Such activity is also prohibited on the following holidays: New Year's Day, Memorial Day, July 4, Labor Day, Christmas Eve Day, and Christmas Day.

(3)

Operators shall use all practical means to eliminate vibration on adjacent property from equipment operation.

(4)

Operators shall comply with all applicable city, county, state and federal regulations for the protection of water quality, including the Minnesota Pollution Control Agency and Federal Environmental Protection Agency regulations for the protection of water quality. No waste products or process residue shall be deposited in any lake stream or natural drainage system. All wastewater shall pass through a sediment basin before drainage into a stream.

(5)

Operators shall comply with all city, county, state and federal regulations for the protection of wetlands.

(6)

Operators shall comply with all requirements of the watershed where the property is located.

(7)

All topsoil shall be retained at the site until complete restoration of the state has been taken place according to the restoration plan.

(8)

Operators shall use all practical means to reduce the amount of dust, smoke, and fumes caused by the operations. When atmospheric or other conditions make it impossible to prevent dust from migrating off-site, operations shall cease.

(9)

To control dust and minimize tracking sand, gravel, and dirt onto public roadways, internal private roads from a mine to any public roadway shall be paved with asphalt or concrete for a distance of at least 300 feet to the intersection with a public roadway. All internal roadways shall be swept and to minimize dust according to a schedule established by the city. The city may approve alternatives to paved internal roadways that accomplish the same purpose.

(10)

All haul routes to and from the mine shall be approved by the city and shall only use streets that can safely accommodate the traffic.

(Ord. No. 128, § 1, 5-14-90; Ord. No. 324, § 5, 7-9-01)