We affirm substantially for the reasons expressed in the opinion of Judge Pressler reported at 133 N. J. Super. 266 (Law Div. 1975).
However, we do not subscribe to so much of the opinion which holds that because of inherent incomparability and the self-defeating consequence of a predetermined WPI increase for comparison purposes, it is improper to require bidders to submit both a fixed price and a flexible bid since it would never be possible to determine in advance of the actual future determination of the index which of the bids would yield the lower actual cost.
It is our view that the Bergen County Sewer Authority would not be precluded from considering alternative bids or circumscribed with respect to the business judgment involved in determining whether to accept one alternative as against another if the Authority included in its specifications, for comparative purposes only, the particular estimate which it was going to utilize with respect to the average distance to the Dump Site B, as well as its estimate as to the average rate of *120inflation or price fluctuation in the Wholesale Price Index of Industrial Commodities, for the flexible price bid. Each bidder could then be compared by an objective standard and the lowest bidder could be determined for each alternative bid. Cf. James Petrozello v. Chatham Township, 75 N. J. Super. 173 (App. Div. 1962). It would then be a matter of business judgment on the part of the Authority to determine which alternative to select.
Obviously, the specifications should clearly set forth that the estimates incorporated therein for purposes of comparison of bids do not constitute any representation by the Authority that at the time of performance by the successful bidder those factors would actually exist.