N.M. Admin. Code § 20.9.9.14

Current through Register Vol. 35, No. 23, December 10, 2024

Section 20.9.9.14 - CORRECTIVE ACTION LEVELS

A. Background water quality data approved by the department shall be used as the baseline to determine corrective action levels (CALs).

B. For all constituents, CALs shall be the ground water protection standard.

C. If the background concentrations of any constituent is above what would otherwise be the ground water protection standards, then the background concentration shall be used as the CAL. Any statistically significant increase above the CAL shall be considered an exceedence of the CAL for that constituent.

D. If more than one potential toxic pollutant, as defined in 20.6.2.7 NMAC, is detected, the potential toxic pollutant criteria of the commission rules for the combination of constituents shall be used to determine the CALs. If the background concentration is greater than the ground water standard, then any statistically significant increase above the background concentration shall be an exceedence of the CAL. However, this shall apply only in cases where such CALs are more stringent than the CALs otherwise determined under this section.

N.M. Admin. Code § 20.9.9.14

20.9.9.14 NMAC - Rp, 20 NMAC 9.1.VIII.807, 8/2/2007