§112.151. What methods must I use to test the quality of water to satisfy the requirements of subpart E of this part? — Inbound Citations

(i) Meets the requirements in § 112.44(a), including the microbial quality criterion and the prohibition on the use of untreated surface water, and if untreated ground water, also meets the testing requirements in §§ 112.44(b), 112.47, and 112.151;

(b) Agricultural water samples must be aseptically collected and tested using methods as set forth in § 112.151, as applicable.

(1) A scientifically valid method that is at least equivalent to the method of analysis in § 112.151(a) in accuracy, precision, and sensitivity; or

(12) Any analytical methods you use in lieu of the method that is incorporated by reference in § 112.151(a).