Do they list the reason why they were denied? Something like: Utility attempted to charge $150k to replace $5,000 worth of fence with 10 hours of labor?
For example, PG&E wanted to replace gas service lines made "with Aldyl-A plastic that were installed before 1985" due to the risk of line failure.
The CPUCs decision was "PG&E’s request to replace unidentified services is denied. Moreover, the Commission does not find that PG&E has supported rounding up the number of services to be replaced by 73 per year."
It's a byzantine system of regulations that dive into the minutia of running a utility. Not to mention a lot of these decisions are by administrative judges since the regulations are written into law.