The city may require any user to self-monitor to determine the characteristics of the discharge to the public sewer system.

Where self-monitoring is performed, such monitoring shall be provided by the user at the user’s expense. Sampling shall be performed at the direction of a California registered professional engineer or as otherwise set forth in user’s permit. Testing shall be performed by a laboratory which has been certified by the Department of Health Services for the analytes tested using the methods specified in 40 CFR 136. All self-monitoring results and chain of custody for samples collected shall be submitted to the city. (Ord. 2282 NCS §3 (part), 2007.)