(1) In order to determine a specific Matrix cleanup level, the site must first be evaluated by:
- (a) Assigning a numerical score to each of the five site-specific parameters in OAR 340-122-0330(1)–(5); and
- (b) Totaling the parameter scores to arrive at the Matrix Score.
- (2) The Matrix Score must then be used to select the appropriate numeric soil cleanup standard as specified in OAR 340-122-0335.
Statutory/Other Authority
ORS 465.400 & 466.746
Statutes/Other Implemented
ORS 465.200 - 465.455 & 466.706 - 466.835
History
DEQ 23-1998, f. & cert. ef. 11-2-98
DEQ 15-1989, f. & cert. ef. 7-28-89 (and corrected 8-3-89)