Idaho Admin. Code r. 58.01.02.283

Current through September 2, 2024
Section 58.01.02.283 - SPOKANE RIVER, SUBSECTION 110.12, HUC 17010305, UNITS P-3 AND P-4, SITE-SPECIFIC CRITERIA FOR AMMONIA

The following criteria are to be met dependent upon the temperature, T (degrees C), and pH of the water body:

01.Acute Criterion (Criterion Maximum Concentration (CMC)). The one (1) hour average concentration of total ammonia nitrogen (in mg N/L) is not to exceed, more than once every three (3) years, the value calculated using the following equation:

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02.Chronic Criterion (Criterion Continuous Concentration (CCC)).
a. The thirty (30) day average concentration of total ammonia nitrogen (in mg N/L) is not to exceed, more than once every three (3) years, the value calculated using the following equation:

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b. The highest four (4) day average within the thirty (30) day period should not exceed two and five tenths (2.5) times the CCC.

Idaho Admin. Code r. 58.01.02.283

Effective March 31, 2022