Wash. Admin. Code § 296-17A-1704
Applies to:
Businesses engaged in quarrying to extract large solid rock from hillsides or open pits, not covered by another classification (N.O.C.).
Rocks extracted include, but are not limited to:
* Ballast rock;
* Cement rock;
* Coral rock;
* Granite;
* Limestone;
* Marble;
* Sandstone;
* Shale rock;
* Slate.
Work processes include, but are not limited to:
* Exposing rock with use of drag lines, power shovels, scrapers, or other earth moving equipment;
* Blasting large rock masses with explosives to break portions loose;
* Separating the rock into large blocks, sometimes called loafs;
* Cutting a loaf using line drilling, wire sawing, diamond wire sawing, or chiseling methods;
* Removing loafs from the quarry pit and taking them to the surface;
* All other activities on the surface of the quarry site, which could involve further cutting of the loafs or crushing of rock into smaller pieces.
Exclusions:
* Open pit mining operations are classified in 1703;
* Underground mining is classified in 1702.
Wash. Admin. Code § 296-17A-1704
07-01-014, recodified as § 296-17A-1704, filed 12/8/06, effective 12/8/06. Statutory Authority: RCW 51.16.035. 98-18-042, § 296-17-551, filed 8/28/98, effective 10/1/98; 85-24-032 (Order 85-33), § 296-17-551, filed 11/27/85, effective 1/1/86; Order 73-22, § 296-17-551, filed 11/9/73, effective 1/1/74.