A. Sediment may not leave the parcel or enter a protected natural resource.

B. Grubbed areas not internally drained must be stabilized.

C. Erosion and sedimentation control for access roads must be conducted in accordance with the department's best management practices for erosion and sedimentation control. Areas for access roads that are not naturally internally drained must meet the standards of section 420-C.

The department may not grant a variance from the provisions of paragraph A, B or C. Areas are not considered "naturally internally drained" if surface discharge is impeded through the use of structures such as detention ponds, retention ponds and undersized culverts.

Sec. 13. 38 MRSA §490-Z, sub-§9, as enacted by PL 1995, c. 700, §35, is repealed and the following enacted in its place:

9. Water quality protection and storm water management.__ Standards of the laws governing storm water management and waste discharge must be met as provided in this subsection.

A.__A variance must be obtained and storm water standards adopted pursuant to section 420-D must be met for any part of a project, other than the working pit area, that is not naturally internally drained if that part of the project would require a storm water management permit pursuant to section 420-D but for the exception for certain excavations in section 420-D, subsection 5.__A storm water management permit pursuant to section 420-D is not required.

B. A waste discharge must meet standards and obtain authorization if required pursuant to section 413.

Sec. 14. 38 MRSA §490-Z, sub-§12, as enacted by PL 1995, c. 700, §35, is amended to read:

12. Dust. Dust generated by activities at a quarry, including dust associated with traffic to and from a quarry, must be controlled by sweeping, paving, watering or other best management practices for control of fugitive emissions. Dust control methods may include calcium chloride as long as the manufacturer's labeling guidelines are followed. The department