Iowa Admin. Code r. 567-51.7

Current through Register Vol. 47, No. 6, September 18, 2024

Rule 567-51.7 - Excavation and processing of rock and gravel products

A water permit is required for withdrawal of more than 25,000 gallons of surface water or groundwater in one day for dewatering, washing, pugging, or use of a hydraulic dredge in connection with removal or processing of rock or gravel products. This permit requirement is subject to the following exceptions:

1. A permit is not required for operation of a hydraulic dredge which returns all water used as a transport medium directly back into the pit from which it is withdrawn by the dredge;

2. A permit is not required for withdrawal of water from a gravel pit or rock quarry sump pit for material washing if the wash water is discharged directly back into the pit from which it is withdrawn.

Iowa Admin. Code r. 567-51.7