NPDES Industrial Storm Water General Permit Forms and Guidance
This information is provided by the Nebraska Department of Environment and Energy to assist the public and regulated community.
Form #: WAT011 General Permit Revised: 3/31/22
SizeFile Name
218 KB ISW 2022 issuance letter.pdf
215 KB 21-030 - Industrial Stormwater Guidance.pdf
1,349 KB General Permit NER 920000.pdf
268 KB Appendix A - Standard Conditions Applicable to all NPDES Permit.pdf
217 KB Appendix B - Definitions, Abbreviations, and Acronyms.pdf
123 KB Appendix C - List of 40 CFR Subchapter N Categories.pdf
204 KB Appendix D - Facilities and Activities Covered.pdf
181 KB Appendix E - Calculating Hardness in Receving Waters for Hardness Dependent Metals.pdf
112 KB Appendix F - MS4s in the State of Nebraska.pdf
886 KB Attachment 1 - Threatened and Endangered Species Guidance and Checklist.pdf
157 KB Attachment 2 - No Exposure Certification Guidance and Checklist.pdf
115 KB Attachment 3 - Corrective Actions Report - Fillable Form.pdf
187 KB Attachment 4 - Storm Event Monitoring Report (ISW SEMR) - Fillable Form.pdf
109 KB Attachment 5 - Relocation Notice Form - Fillable Form.pdf
380 KB Fact sheet NER920000.pdf
3,333 KB 22-004 - AIM Guidance Document.pdf
919 KB 22-006 - Guidance for Online ISW NOI.pdf

The Department of Environment and Energy (NDEE) has issued the National Pollutant Discharge Elimination System (NPDES) Industrial Stormwater General Permit (ISW-GP) NER920000.

The permit became effective April 1, 2022 and expires March 31, 2027.

The deadline to renew coverage is no later than September 28, 2022. A notice of intent (NOI) must be received by the NDEE at least 30 days prior to facility start-up.

The new permit and fact sheet are attached above. In addition, the documents highlighted below can also be found on this page:
  • Those who are uncertain if the industrial storm water program applies to their facility should compare the facility’s Standard Industrial Classification (SIC) to those listed in Appendix DFacilities and Activities Covered, also see 21-030 Industrial Storm Water Guidance for additional information.
  • Those who are qualified for the No Exposure Certification (NEC) under NER910000 are required to submit a new certification request under NER920000 using the Online Application Process. See Part 1.5 of the Permit and Attachment 2No Exposure Certification Guidance and Checklist for more information.
  • Facilities that no longer require coverage or are permanently out of operation need to submit the Notice of Termination (NOT) form.

Those with questions can contact the Agency at (402) 471-2186.

Additional Implementation Measures (AIM)
New to NER920000 are the Additional Implementation Measures (AIM) requirements. All facilities covered under NER920000 with benchmark monitoring requirements are subject to Additional Implementation Measures (AIM) as described in Part 3.2 of the permit.

AIM outlines the corrective actions and steps required for benchmark exceedances. AIM is a three-level response that provides a follow-up process. AIM Levels are sequential and cannot be skipped. The AIM requirements apply on a pollutant parameter-specific, per discharge point basis.

See the 22-004 AIM Guidance Document for additional information.

The EPA has also provided useful tools and information to help determine your AIM level and appropriate corrective actions or best management practices (BMPs) that may be beneficial to meeting benchmarks.

See the AIM calculator and Industrial Storm Water Fact Sheet Series for each of the 29 industrial sectors regulated by the ISW general permit at the following link:

For additional assistance contact the Agency at (402) 471-2186.

**** The Industrial Storm Water application process is now an online process ****

Online Application Process

This link takes you to the online application page. You may register for an account to use the online permit application process. Or, once you have an account, you can login to the application. Prior to completing your account registration, please note or record your userID, security questions and answers.

See 22-006 Instructions for ISW Electronic NOI Registration guidance document for step-by-step instructions.

The direct URL to the application page is:

Related information you will need to complete your NOI can be found below:
  • To determine if your facility is discharging to a State Resource Water, see NDEE Title 117, Chapter 5 (a list of State Resource Waters is also included within the NOI).

For additional assistance contact the Agency at (402) 471-2186.

Industrial Storm Water Projects and Records

The following link provides an option to search for Industrial Storm Water Projects in Nebraska.

DEE ISW NOI Public Access *

The permit number can be used to retrieve and view documents for a specific Industrial Storm Water Project. Enter the Permit Number (i.e.: ISW-201600001) and press Search.


Nebraska Department of Environment and Energy
P.O. Box 98922
Lincoln, NE 68509-8922

Phone: (402) 471-2186

Visit our website:

* This webpage contains links to Non-NDEE websites, these links open in a new tab or window

Note: Effective Oct. 1, 2009, any individual submitting any application or form that would derive public benefit from the state must also fill out a United States Citizenship Attestation form. This applies to individuals submitting the forms on their own behalf. If applicable, please fill out the United States Citizenship Attestation form below and submit it with the relevant applications and forms.

United States Citizenship Attestation Form

This Complete Form is only available as an Adobe Acrobat (PDF) file.
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