If my business has a Regulated SIC Code and does not have one of the required documents (WDID, NONA, or NEC) to verify enrollment in the NPDES Stormwater IGP, who should I contact?

In City businesses with a Regulated SIC Code as determined by the SWRCB that are unable to verify enrollment in the NPDES Stormwater IGP by providing one of the required documents (WDID, NONA or NEC) with the City’s business license application, should review the requirements for NPDES Stormwater IGP to ensure that the permit coverage is applicable and apply for Stormwater IGP coverage with the SWRCB using the links below:

Stormwater IGP - Notice of Intent FAQs 
Stormwater IGP - Program Information 
Stormwater IGP – Types of Coverage

For additional questions regarding Stormwater IGP requirements, please contact the Santa Ana Regional Water Quality Control Board (RWQCB).

Santa Ana RWQCB
Stormwater Program - Industrial Section
Address     3737 Main Street, Suite 500
Riverside, CA 92501-3348
Email        
Phone:       (951) 782-4130


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1. What is Senate Bill 205?
2. How do I find the SIC Code for my business?
3. How does SB 205 apply to all new/initial and renewal business license applicants?
4. Where can I find additional information about SB 205?
5. Why has the City updated the business license application?
6. Where can I find the City’s updated business license application?
7. Why does the City need to review all new/initial business license and renewal business license applications?
8. How do I know if my business has a Regulated SIC Code as determined by the California SWRCB?
9. How do I know if my business needs to enroll in the NPDES Stormwater Industrial General Permit (IGP) Program to comply with SB 205?
10. What do I need to provide if my business has a Regulated SIC Code?
11. If my business has a Regulated SIC Code and does not have one of the required documents (WDID, NONA, or NEC) to verify enrollment in the NPDES Stormwater IGP, who should I contact?