Administrative Rules of Montana
Department 4 - AGRICULTURE
Chapter 4.11 - ENVIRONMENTAL MANAGEMENT
Subchapter 4.11.6 - Monitoring Procedures
Rule 4.11.602 - SELECTION OF MONITORING SITES

Universal Citation: MT Admin Rules 4.11.602

Current through Register Vol. 18, September 20, 2024

(1) Factors that may be used in establishing priority for selection of sampling sites include, but are not limited to:

(a) local cropping practices;

(b) agricultural chemical use patterns;

(c) soil characteristics;

(d) depth to water table;

(e) ground water usage:
(i) public or private drinking water supply;

(ii) non-potable use;

(f) existing water quality;

(g) previous detections of agricultural chemical residues in ground water;

(h) the potential for adverse impact of impaired or degraded ground water on human health or the environment:
(i) number of wells per unit area;

(ii) volume of ground water used for human consumption per unit area.

(i) impairment or degradation of irrigation water;

(j) agricultural chemical user activities which may lead to ground water impairment or degradation;

(k) suspected misuse of chemicals, violation of Title 80, chapter 15, MCA, or violation of a SMP.

(2) The department will consider seasonal changes in ground water recharge and flux and irrigation scheduling when determining appropriate times to sample water.

(3) The department will re-evaluate site prioritization based on new or updated information.

Sec. 80-15-105, MCA; IMP, Sec. 80-15-202 and 80-15-203, MCA;

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