The following additional ECMs may be incorporated in a proposed ECP to mitigate the effects of the specified activities:
A. Unpaved Roadways:
1. Paving using asphalt, recycled asphalt, asphaltic concrete, concrete, or double penetration (consistent with subdivision or zoning requirements);
2. Dust suppressants applied in amounts and rates recommended by the manufacturer and maintained as recommended by the manufacturer; regularly scheduled wet suppression; and/or
3. The use of traffic controls, including decreased speed limits with appropriate enforcement; vehicle access restrictions and controls; road closures and barricades; and off road vehicle access controls and closures.
B. Trucks Hauling Bulk Materials On Public Roadways:
1. Properly secured tarps or cargo covering that covers the entire surface of the load;
2. Dust suppressants applied in amounts and rates recommended by the manufacturer;
3. Maintain six inches (6") of freeboard from the rim of the truck bed. "Freeboard" means the vertical distance from the highest portion of the load to the lowest part of the rim of the truck bed; and/or
4. Prevent leakage from the truck bed, sideboards, tailgate or bottom dump gate.
C. Bulk Material Handling:
1. Spray bars;
2. Wetting agents (surfactants) added to bulk material;
3. Wet suppression through manual application;
4. Dust suppressants added to bulk materials in amounts and rates recommended by the manufacturer and maintained as recommended by the manufacturer;
5. Stop bulk material handling during high wind conditions;
6. Reduce process speeds; and/or
7. Reduce drop heights.
D. Industrial Sites:
1. Pave roadways and parking areas with asphalt, recycled asphalt, asphaltic concrete, and concrete;
2. Regularly scheduled vacuum street cleaning;
3. Regularly scheduled wet suppression of unpaved areas;
4. Dust suppression applied in amounts and rates recommended by the manufacturer and maintained as recommended by the manufacturer;
5. Wind breaks;
6. Enclosures;
7. Increase wet suppression applications during high wind conditions;
8. Slow active operations during high wind conditions; and/or
9. Stop active operations during high wind conditions.
E. Demolition And Renovation Activities When Asbestos Containing Materials Are Or Are Not Present: If asbestos containing material may be present, all demolition or renovation activity shall be performed in accordance with the federal standards referenced in 20 NMAC administrative code 11.64, emission standards for hazardous air pollutants for stationary sources. In other instances, the following ECMs may be utilized:
1. Constant wet suppression on the debris piles during demolition;
2. Dust suppression applied on the debris piles in amounts and rates recommended by the manufacturer;
3. Enclosures;
4. Curtains or shrouds;
5. Negative pressure dust collectors; and/or
6. Stop demolition during high wind conditions.
F. Milling, Grinding Or Cutting Of Paved Or Concrete Surfaces:
1. Constant wet suppression;
2. Ongoing cleanup of milled, ground or cut material;
3. Dust suppression applied in amounts and rates recommended by the manufacturer and maintained as recommended by the manufacturer;
4. Enclosures;
5. Negative pressure dust collectors; and/or
6. Curtains or shrouds.
G. Pressure Blasting Operations:
1. Use of nonfriable abrasive material;
2. Curtains or shrouds;
3. Negative pressure dust collectors;
4. Constant wet suppression; and/or
5. Ongoing cleanup of abrasive material. (Ord. 352, 2009)