N.M. Admin. Code § 20.9.9.20

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

Section 20.9.9.20 - CONSTITUENTS AND PARAMETERS

Constituents and parameters to be evaluated under the requirements of 20.9.9.1 - 20.9.9.19 NMAC include:

A. every constituent listed in the following:

(1) 40 CFR 258 Appendix I;

(2)20.6.2.3103 NMAC, including the parameter of pH;

B. all constituents listed in 40 CFR 258 Appendix II, 20.6.2.3103 NMAC, potential toxic pollutants listed in 20.6.2.7 NMAC; and

C. the following constituents and parameters:

(1) calcium (CAS No. 7440-70-2);

(2) magnesium (CAS No. 7439-95-4);

(3) potassium (CAS No. 7440-09-7);

(4) sodium (CAS No. 7440-23-5);

(5) ammonia (CAS No. 1331-21-6);

(6) bicarbonate alkalinity;

(7) carbonate alkalinity;

(8) total nitrogen;

(9) total kjeldahl nitrogen;

(10) total organic carbon;

(11) phosphate;

(12) specific conductance;

(13) temperature;

(14) depth to ground water; and

(15) ground water elevation.

D. When additional constituents are added to ground water monitoring requirements through updates to the rules cited, the new constituents shall be added to the routine sampling frequency for a particular landfill. Background quality for the new constituent shall be determined after a sufficient number of samples are collected during routine sampling, unless a new constituent is detected above the AML, in which case the procedure in Subsection E of 20.9.9.10 NMAC shall be used to determine background concentration.

E. A list of constituents and parameters to be evaluated under the requirements of 20.9.9 NMAC will be made available to the public and posted on the NMED website.

N.M. Admin. Code § 20.9.9.20

20.9.9.20 NMAC - N, 8/2/2007