California Filtration Specialists

04/07/2026

This is a friendly reminder that now is the time of year to schedule your annual Inspection and Maintenance.

Whitson CM is different from our competitors.

We service the entire state of CA and offer the following:
Research the treatment system’s &M manuals
We ONLY recommend services based upon these O&M manuals
If maintenance is required, WCM gets multiple prices from qualified firms
WCM is an “A” licensed general engineering contractor and can subcontract out these services
Or the owner can hire the lowest qualified service company to perform the work

WCM will complete and file all paperwork with the governing .

WCM also has an online platform so that both the inspection reports and documentation of performed maintenance is readily available.

For a quote, email [email protected] or call 858-673-0966

03/30/2026

02/21/2026

01/17/2026

SWPPP On line’s construction inspection system is reliable and simple. The system securely stores data and pictures in the cloud. Try SWPPP Online free for 30 days and experience the difference.

12/06/2025

12/02/2025

Ready to upgrade your outdoor space? Ecoraster makes it easy.

Ecoraster permeable pavers allow you to complete your project quickly and efficiently! These ground reinforcement pavers come in pre-assembled layers, making installation a breeze. No heavy machinery is needed—just simple foot pressure, and you're set to transform any space with a permeable surface in no time!

Whether you opt for professional installation or prefer to tackle your DIY project independently, Ecoraster ensures a swift and smooth process. They won't delay your project timelines, guaranteeing quick and efficient progress every step of the way.

11/24/2025

Hoofgrid by Ecoraster is made from recycled plastic bags. The type of polyethylene allows it to flex and bend without becoming brittle or breaking. It comes with a 10 year warranty. When it comes to healthy hooves, plus the ability to ride year round, it is worth the one time investment!
Contact us to help you design and price our system: [email protected]

11/17/2025

[email protected]
Hoofgrid creates a stable and comfortable drainage layer for your animals.

11/11/2025

Happy Veterans’ Day, and a big thanks to all who have served!

10/06/2025

WhitsonCM and CA Filtration Specialists have been leading the way in innovative stormwater solutions for an entire decade. Contact us for the most cost-effective design-build solutions!