Compliance by existing categorical users covered by Categorical Pretreatment Standards shall be within three years of the date the Standard is effective unless a shorter compliance time is specified in the appropriate Standard. The County shall establish a final compliance deadline date for any existing user not covered by Categorical Pretreatment Standards or for any categorical user when the local limits for said user are more restrictive than EPA's Categorical Pretreatment Standards.

New source dischargers and new users are required to comply with applicable pretreatment standards within the shortest feasible time (not to exceed 90 days from the beginning of discharge). New Sources and new users shall install and have in operating condition, and shall startup all pollution control equipment required to meet applicable pretreatment standards before beginning to discharge.

Any wastewater discharge permit issued to a categorical user shall not contain a compliance date beyond any deadline date established in EPA's Categorical Pretreatment Standards. Any other existing user or a categorical user that must comply with a more stringent local limit, which is in non-compliance with any local limits, shall be provided with a compliance schedule placed in a wastewater discharge permit or compliance order, to insure compliance within the shortest time feasible.