If I have more than one project on the same job but it's under the same job # do I need multiple prelims for each job, like one for mitigation and one for abatement?
Typically, only one notice is required when working on a CA project. When hired by two separate subcontractors on one single CA project, multiple preliminary notices would be required under CA Civil Code § 8206(b). Otherwise, claimants will generally only need to send one preliminary notice, as laid out by § 8206(a).
Still, it's important that all work being done on the project is clearly described on the face of the notice. And, note that an estimate of the total price for all work provided must be included, too. When work is being done under two separate contracts - it might be a good idea to go ahead and provide two separate descriptions for the work and identify the estimated price for each. That way, the preliminary notice is crystal clear about what work is being provided and the anticipated price for that work.
Finally, it looks like you're acting as a general contractor for this work. Keep in mind that when hired by the owner, CA contractors will only be required to send notice if there's a construction lender on the project. Otherwise, notice is completely voluntary. While it's generally a great idea to send voluntary notices - a notice that's voluntary won't have strict statutory requirements. So, when contemplating notice rules, it's a good idea to keep in mind that requirements will only apply when the notice is legally required.
For other tips on California preliminary notices: (1) The Ultimate Guide to California’s 20-Day Preliminary Notice; and (2) California Preliminary Notice Rules & FAQs.
What if your a Street Sweeper and your at a construction site and cleaning up after several projects?