Page 157 - California Stormwater Workshop Handouts

Industrial General Permit Fact Sheet

b. Located in basins or other physical locations that are not hydrologically
connected to waters of the United States.

The State Water Board considered allowing Entities to review United States
Army Corp of Engineer maps to determine, without a California licensed
professional engineer, whether their facility location is within a basin and/or other
physical location that is not hydrologically connected to waters of the United
States. The State Water Board believes that this determination can be difficult in
some cases, or is likely to be performed incorrectly. In addition, there may be
areas of the state that are not hydrologically connected to waters of the United
States, but are not on United States Army Corps of Engineer maps. Therefore,
all “No Discharge” Technical Reports must be signed (wet signature and license
number) by a California licensed professional engineer.

3. Additional Considerations

The “No Discharge” determination does not cover storm water containment systems
that transfer industrial pollutants to groundwater. Entities must determine whether
designs that incorporate infiltration may discharge to and contaminate groundwater.
If there is a threat to groundwater, Entities must contact the Regional Water Boards
prior to construction of infiltration design elements.

Entities that have not eliminated all discharges that are subject to General Permit
coverage (NOI Coverage or NEC Coverage) are ineligible to submit NONAs
indicating “No Discharge.”

Order 2014-0057-DWQ 73