In response to some of the comments:
1) I was not cited for speeding. There was no posted reduced speed limit thru the construction zone (see
vc22362). The posted speed limit along that stretch of freeway is 65 mph. The accident happened during rush-hour, traffic was heavy but not bumper-to-bumper, and was moving at 65 mph.
2) There are no "Trucks Entering Roadway" signs posted before the construction zone.
3) The water truck and driver left the scene, but was tracked down by the CHP about 4 miles from where the accident occurred. I have no knowledge if the driver was cited for leaving the scene. His supervisor sent him in for a drug test.
4) The body shop called today to inform me they have discovered additional damage which will push the repair bill to around $8.5K for the "minor fender bender" damage to my truck. The additional repairs will add about a week to getting my truck back.
So far, I am satisfied with the prompt response of the construction company and their insurance company in getting the repairs underway.