Email Us

(888) 397-9414

9:00am EST–4:00pm PST

Office Hours

M–F, 9:00am–4:00pm EST

Email Us

(888) 397-9414

9:00am EST–4:00pm PST

Office Hours

M–F, 9:00am–4:00pm EST


The safety and well-being of our customers and instructors are Priority One for National Stormwater Center.  We are proactively implementing preventive measures due to the growing concerns regarding the COVID-19 outbreak.   We are making necessary adjustments to our training sessions as we monitor health advisories and travel restrictions.  

All classes are subject to be changed to online delivery via interactive webinars.

We will continue to monitor this situation and respond based on the best advice of government agencies, public health authorities, and medical professionals for all of our training sessions.  Please contact us with any questions or concerns.

Certified Stormwater Inspector – California

Designed specifically for MS4 personnel this online course focuses on stormwater permit compliance as the key to restore and maintain the waters of the United States. Testing will be conducted; students are required to achieve a minimum overall score of 75% to be awarded 1.4 CEUs (Continuing Education Units) from National Stormwater Center, and a five (5) year Inspector Certificate.

Permits require "Qualified Personnel" conduct inspections, be part of the Stormwater Team, etc.  National Stormwater Center certifies graduates.  This certification indicates that the services our graduates conduct are being performed by professionals who have met the established standards of knowledge, experience, and competence required in the field of stormwater inspections.  The National Stormwater Center's CSI-MS4 class has been an integral part of the success of 7,333 municipal inspectors across the country.  

NOTE: This class does not provide the CA Water Board’s required QSP or QSD certification (Qualified SWPPP Practitioner/Developer).

California Municipal Personnel and their consultants who take this course typically have responsibility for:

  • Inspections (Industry, Construction, Commercial, Municipal)
  • Annual Reports
  • Stormwater Visual Observations
  • Sampling and Waivers
  • Elimination of Non Stormwater Discharges
  • Public Information and Education and Outreach
  • Annual Compliance Evaluations
  • Municipal Operations
  • Document Control
  • Audits
  • Illicit Discharge Detection & Elimination
  • Reporting and Signatory Certifications

This course is appropriate for California Municipal stormwater personnel including:

  • Public Works personnel
  • Building Code personnel
  • Code Enforcement personnel
  • FOG (Fats, Oils, Grease) inspectors
  • Floodplain and watershed personnel
  • Consultants to California MS4s

Pricing and Terms for CSI-California

Course Length: 2 days/12 hours

Course and Registration Fee:

$824.00 ($799 course, $25 registration)


Early Registration Discount! Register 30+ days in advance of class start date and received a $50 discount. Organizations registering multiple students receive the $50 per person early registration discount, plus the $25 per person registration fee is waived!

Regular discount: $50 per person discount for two or more registrants from same organization when registering less than 30 days in advance of class start date.

Class Location:

Our classes are normally held at Hilton properties near the airport of the Location City.  (Hilton Garden Inn, Hampton Inn, Embassy Suites, DoubleTree, etc.).


Registration fee is non-refundable. Course fee may be applied to another scheduled class, transferred to another registrant, or it will be refunded if cancellation received a minimum of 14 days prior to class start date. Certificates of Training valid for 5 years and 1.4 CEUs awarded by National Stormwater Center will be issued to attendees who achieve a minimum of 75% accuracy on overall testing. Graduates may attend the CSI-Recertification class to extend their National Stormwater Center qualifications for an additional five (5) years. Registered students will receive a detailed email prior to the start date. This email will include specific class location, daily start and end times, and additional information.

Cancellations: Class fees are refunded if received 14 days prior to start date, registration fees are non-refundable.  Substitutions are allowed with notification to our business office.  Cancellation or reschedule requests made less than 14 days of the class start date may not receive a refund nor a transfer.  You agree to these terms when registering for the training.

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