Certifications, Memberships, and Licenses


Whitson CM’s professional staff are fully certified by the State of California. Furthermore, all of our staff have the following qualifications.

– Certified Inspector of Sediment and Erosion Control (CISEC).

– Certified Professional in Erosion and Sediment Control (CPESC).

– Certified Professional in Erosion, Sediment and Stormwater Inspector (CESSWI).

– Certified Professional in Stormwater Quality (CPSWQ).

– Professional Licensed Engineer (P.E.).

– Qualified SWPPP Developer (QSD).

– Qualified SWPPP Practitioner (QSP).

– Trainer of Record (ToR).


Industry Trade Memberships

Whitson CM has the following memberships because our company is passionately involved in the industry to help understand and educate members of the trade.

– California Stormwater Quality Association (CASQA).

– Certified Small Business Enterprise with State of California DGS #37019.

– Certified Small Business Enterprise with The Network #33407.

– International Erosion Control Association (IECA).

– Water Environment Federation (WEF).




Whitson CM has earned the following licenses to ensure trust and confidence for our customers.

– General Engineering Contractor Class A (823289).

– City of San Diego Business License (#B2003008343).

– City of San Diego, Small Local Business Enterprise (#12WC0668).

– Local licenses in all other municipalities where Whitson Contracting and Management performs services.