Page 210 - California Stormwater Workshop Handouts
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APPENDIX 2
INSTRUCTIONS FOR NO EXPOSURE CERTIFICATION (NEC)
days or less, are required to be covered by an 7. Other NEC coverage Facts:
NPDES permit.)
a. NEC coverage is only valid if the condition of “No
5. Other Potential Sources of Contaminants Exposure” exists and is reasonably expected to
continue to exist. Dischargers shall electronically
a. Particulate Emissions from Roof Stacks and/or certify and submit PRDs for NOI coverage when the
Vents: Deposits of particles or residuals from roof condition of “No Exposure” is no longer expected to
stacks/vents that have the potential to be mobilized exist.
by storm water runoff are considered exposed.
b. Dischargers must file PRDs for NEC coverage for
b. Pollutants Potentially Mobilized by Wind Windblown each qualifying facility.
materials cause a condition of exposure. Materials
sheltered from precipitation are be deemed c. An NEC must be submitted for each separate
exposed if the materials has a potential to be facility qualifying for the “No Exposure” conditional
mobilized by wind. exclusion.
6. Certifying a Condition of “No Exposure” d. An NEC is non-transferable. If a new operator
takes over facility operations, the new operator shall
To obtain the NEC coverage, the Discharger must electronically certify and submit PRDs and
electronically certify and submit PRDs via SMARTS that applicable fees for new NEC coverage via SMARTS
the facility meets the definition of “No Exposure” and prior to the operations transfer. NEC coverage
pay an annual fee. The Discharger must submit PRDs cannot be transferred from one physical location to
for NEC coverage even if the Discharger was not another regardless of ownership.
previously required to file for NEC coverage under
the previous General Permit. These PRDs include a 8. Operators May Be Required to Obtain NOI Coverage
checklist requiring the Discharger to evaluate eleven Based on the Protection Of Water Quality?
major areas to determine whether there is exposure of
industrial activities and materials at the facility. To Operators who certified that their facilities qualify for
qualify for NEC coverage the Discharger must satisfy all NEC coverage may, nonetheless, be required by the
the NEC coverage conditions in this General Permit and Regional Water Board to obtain NOI coverage if the
certify that there is “No Exposure”. The checklist: 1) Regional Water Board determines that the facility’s
aids the Discharger in determining if its facility is eligible discharge has the potential to cause or contribute to an
for NEC coverage, and 2) furnishes the necessary exceedance of applicable water quality
documentation supporting relief from the General objectives/standards or determines that exposure exists
Permit’s requirement of NOI coverage. Additionally, at the facility. The Regional Water Board may request
Dischargers with NEC coverage are not required to information and/or inspect the facility to assess potential
develop and implement SWPPPs or comply with the water quality impacts and to determine if NOI coverage
monitoring requirements. is required. The Discharger shall take appropriate
actions to ensure compliance with the General Permit.
If a Discharger cannot certify that there is “No
Exposure” at the facility, the Discharger must make 9. Steps to Obtain NEC coverage
appropriate changes at the facility to eliminate exposure
prior to registering for future NEC coverage. Facility This section will walk you through the process of
changes must remove all potential for pollutant obtaining NEC coverage.
exposure to storm water.
Step 1: Determine if your facility is subject to this
An annual inspection and evaluation, re-certification General Permit (refer to Attachment A of this General
and fee are required thereafter. Permit). If yes, proceed to Step 2. If not, stop here.
Order 2014-0057-DWQ If your facility is included in Attachment A and conducts
industrial activities, you are required to either register
for NOI coverage or NEC coverage.
Step 2: Determine if your regulated industrial activity
meets the definition of “No Exposure” and qualifies for
the exclusion from permitting. If yes, proceed to Step 3.
If no, stop here and obtain NOI coverage. An
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