All permits shall specify:

(a) Requirements concerning the proper use, maintenance, and installation, when appropriate, of monitoring equipment or methods (including biological monitoring methods when appropriate);

(b) Required monitoring including type, intervals, and frequency sufficient to yield data which are representative of the monitored activity including, when appropriate, continuous monitoring;

(c) Applicable reporting requirements based upon the impact of the regulated activity and as specified in 40 CFR part 3 (Cross-Media Electronic Reporting Regulation), §122.44, and 40 CFR part 127 (NPDES Electronic Reporting). Reporting shall be no less frequent than specified in §122.44. EPA will maintain the start dates for the electronic reporting of monitoring results for each state on its Web site.

[48 FR 14153, Apr. 1, 1983; 50 FR 6940, Feb. 19, 1985; 80 FR 64098, Oct. 22, 2015]