I also had the test done in Huntington Beach, along with a few other areas. John Childress from Simi Valley DBS is one that prefers this test.
It's a great idea to check it after the other trades have finished, just to make sure there's no re-grounded grounded conductors! [what a redundant statement
Not only that, but the "Neutral Disconnect Link" which service type switch gear has, gets to be used finally!
One other thing about Huntington Beach was penetration of the methane barrier under concrete slabs. I guess that there's an increasing amount of methane gas being pushed inland from the ocean. There's sure a lot of oil pumps in that area!!!
We saw cutted the existing slab to install floor boxes and stubs for teller line [bank branch project] and the Building Department was very concerned with us penetrating the methane barrier.
FYI: The SCE feeder conduits, along with the Telco riser duct to the MPOE were sealed like a gas station's conduits would be. Very rarely see that done!
We had to paint the heck out of any underground/underfloor ducts, conduits and boxes too! Once again, the methane situation must be the reason for this.
The Fire Sprinkler's feed [from street to the PIV inside building] was also required to be painted this way.
Wonder if the Landscapers' had to treat their irrigation lines???
- It's possible! I could see methane being able to penetrate the PVC, then enter the irrigation lines and concentrate.
There's a few other AHJ's that want Disposals, Dishwashers, and the like to be hardwired [flex whips]. City / County of LA is one, and I think that Azusa does too. Seems that San Diego is another.