Certified septic pumping companies in Humboldt County, CA

✓ 4 companies based in Humboldt County, from the CSLB Licensed C-42 Sanitation System Contractors (retrieved 2026-07-23). Companies based in neighboring counties often serve here too — see the full California list.

Company	Location	Certifications	License #
Moxon Construction	Eureka, CA	Installer (C-42)	1091123
Niekrasz Plumbing Inc	Eureka, CA	Installer (C-42)	292370
Steves Septic Service Llc	Mc Kinleyville, CA	Installer (C-42)	1022884
Wyckoff Plumbing	Fortuna, CA	Installer (C-42)	199427

FAQs

How many certified septic pumping companies are in Humboldt County?

4 companies in the CSLB Licensed C-42 Sanitation System Contractors are based in Humboldt County as of 2026-07-23. Companies based elsewhere in California also commonly serve the county.

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