A review of the various rate structures utilized by the private investor-owned utilities is explored to determine if the complaints managed by the ORS can be reduced by a change in the way bulk water charges are assessed to the customer. This review includes an evaluation of the rate structures approved by the PSC, the number and types of complaints managed by the Consumer Service Department within ORS, billing practices of the various regulated utilities purchasing bulk water for resale to its customers, and the water production method utilized by the various regulated water utilities