Page 147 - California Stormwater Workshop Handouts

Industrial General Permit Fact Sheet

certified and submitted, a Discharger will need to develop an Action Plan for this
new Level 2 NAL exceedance. This General Permit defines new Level 2 NAL
exceedances as an exceedance for a new parameter in any drainage area at the
facility, or an exceedance for the same parameter being addressed in an existing
Action Plan, but where the exceedance occurred in a different drainage area than
identified in the existing Action Plan.

b. Level 2 ERA Technical Reports

The Level 2 ERA Technical Report contains three different options that require a
Discharger to submit demonstrations showing the cause of the NAL
exceedance(s). This General Permit requires a Discharger to appoint a QISP to
prepare the Level 2 ERA Technical Reports. The State Water Board
acknowledges that there may be cases where a combination of the
demonstrations may be appropriate; therefore a Discharger may combine any of
the following three demonstration options in their Level 2 ERA Technical Report
when appropriate. A Discharger is only required to annually update its Level 2
ERA Technical Report when necessary as defined in Section XII.D.3.c of this
General Permit, and is not required to annually re-certify and re-submit the entire
Level 2 ERA Technical Report. If there are no changes prompting an update of
the Level 2 ERA Technical Report, as specified in Section XII.D.3.c of this
General Permit, the Discharger will provide this certification in the Annual Report
that there have been no changes warranting re-submittal of the Level 2 ERA
Technical Report.

i. Industrial Activity BMPs Demonstration

The Industrial Activity BMPs Demonstration is for the following:

 Dischargers who decided to implement additional BMPs that are expected
to eliminate future NAL exceedance(s) and that have been implemented in
order to achieve compliance with the technology-based effluent limitations
of this General Permit, and

 Dischargers who decided to implement additional BMPs that may not
eliminate future NAL exceedance(s) and that have been implemented in
order to achieve compliance with the technology-based effluent limitations
of this General Permit.

When preparing the Industrial Activity BMPs Demonstration, the QISP shall
identify and evaluate all individual pollutant source(s) associated with
industrial activity that are or may be related to an NAL exceedance and all
designed, information on the drainage areas associated with the Level 2 NAL
exceedances, and installed BMPs that are implemented to reduce or prevent
pollutants in industrial storm water discharges in compliance with this General
Permit.

Order 2014-0057-DWQ 63