How does this apply,,, well if we add a second set of rods to the sub fed service, in this case a detached garage,,, as good as the set of rods at the service main in theory again, the ground wire between structures does not carry strike to the main or back wards. Hence,,, back to mr well man,,, the lightening didn't hit the well but was the recipient of it? Old steel submersible wells have rubber seal to casing connection, mr installer is connecting the electric ground to this, it should be bonded but the primary electrode should be the casing.
I remember I had one they ruled as lightening damage, great, was about 20 yrs old anyway, had it insured, I replaced the entrance equipment all of it and started poking around, yes the service was installed with a rod. Anyway I pecked around on one of the code sites. I mentioned that I wanted this right and the well guy suddenly developed a speech impediment about the correct way, the guru says, ground it to the steel casing 20 ft away, duh. I said, I can weld a lug on bolt wire, dig trench, run wire to service panel, no rods needed, yes, period.
My neighbors recent had a "struck well" property with older service, well, mobile home and this little steel shed that they had jury rigged an electric circuit to, fed from the house via a 3 wire plug on a piece of uf to an outdoor recept, anyway, the place gets hit, takes the well out and mysteriously blows up a couple fixtures here and there that don't make sense,,, well I could just see the pathway, damaged equipment on the same circuit, pathway right back to the panel, from there it went via the to the well stand pipe, the hit equipment was on a circuit about 50 ft of number 12, was enough to take this lighting strike right thru this house.
)