Swerock AB

Potential impact on water or groundwater

Emissions of:

1. Fines;

2. Nitrogen;

3. Diesel;

4. Chemicals.

Description of the good practice

1. Sedimentation pond;

2. Nitrogen trap, if it is possible to convey water from the quarries to a wetland and there is economic and practicable;

3. Refueling on hard surfaces, good supply of absorption products;

4. Chemicals stored in locked containers with receptacle, good supply of absorption products.

Description of the positive effects on water/groundwater

1. Reduce the amount of sediment materials in the water leaving the quarry area;

2. Nitrogen absorbed by vegetation, organically bound nitrogen settle and denitrification;

3. Spill of diesel at fueling stops in the paved surface, does not go into the ground;

4. No spillage of chemicals. Unauthorized persons can´t access them and cause damage.