Utilities Billed to Tenants and Rent Control

[Ryan Weimer]

We are buying an 8 unit multifamily in OR and our new property management company we are considering hiring is telling us billing the water back to the tenants is included in the 9% rent control maximum yearly rent increase.

I am skeptical of this because that doesn't make any sense to me... but I could be wrong.  I would think only costs associated with rent would be in that bucket.  Any one have any experience with rent control states and utilities?