This case involves a squabble between an agency of the State of Oregon (defendant) and Coos County (plaintiff). The dispute ultimately found its way to the courts when plaintiff brought this declaratory judgment action under the Public Records Law, ORS 192.410 to 192.500, for an order requiring defendant to disclose individual responses that it had received on a questionnaire it had sent to its fish and wildlife biologists. The questionnaire asked the biologists to rate the effectiveness of the Forest Practices Act, ORS 527.610 to 527.730, in protecting fish habitat and wildlife on private timber land. The trial court viewed the documents in camera after both parties moved for summary judgment and held that the responses were subject to disclosure. In Coos County v. Ore. Dept. of Fish and Wildlife, 83 Or App 696, 732 P2d 961 (1987), we affirmed without opinion. We allow defendant’s petition for reconsideration, but we adhere to our former decision.

Defendant contends that the biologists’ responses are exempt from disclosure1 under ORS 192.500(2)(a),2 which exempts from disclosure communications within a public body that are advisory in nature, preliminary to any final agency action, and cover other than purely factual matters if, in the particular instance, the public interest in encouraging frank communication clearly outweighs the public interest in disclosure. Bay Area Health District v. Griffin, 73 Or App 294, 698 P2d 977 (1985). If a public record contains material which is not exempt, as well as material which is exempt, it is the duty of the public body to separate the exempt and nonexempt material and to make the nonexempt material available for examination if it is “reasonably possible” to do so while preserving the confidentiality of the exempt material. ORS *171192.500(3); Turner v. Reed, 22 Or App 177, 186 n 8, 538 P2d 373 (1975). When a public body’s failure to disclose is contested, the burden is on the public body to justify its action. ORS 192.490(1).

It is undisputed that the biologists’ responses to defendant’s questionnaire constitute communications within a public body and, at least in part, are advisory in nature and cover other than purely factual matters.3 Accordingly, the *172issues are first, whether, in this particular instance, the public interest in encouraging frank communication within a public body clearly outweighs the public interest in disclosure with respect to all or a portion of the biologists’ responses that may otherwise be exempt from disclosure and, second, what steps defendant must take to separate the exempt material from the nonexempt to make the nonexempt material available for examination.

Plaintiff believes that the requested documents would be useful in carrying out its duties with respect to land use planning. Defendant, on the other hand, contends that disclosing the biologists’ responses will have a “chilling effect” on the free flow of information and opinions within the agency. It also contends that the public interest in disclosure is minimal in light of a summary of the responses that it prepared and furnished to plaintiff and other interested parties. Defendant acknowledges, however, that plaintiff s interest in obtaining copies of the responses is “legitimate.” For that reason, one can only wonder why the parties were unable or unwilling to come to an agreement that would have been satisfactory to both while dispensing with the need for costly litigation at public expense. Instead, defendant adopted an all or nothing approach, making no effort of which we know to provide plaintiff with the purely factual portions of the responses.

We conclude, initially, that the public interest in the disclosure of public records cannot be satisfied by the “disclosure” of a summarizing document, regardless of whether a summary satisfies the individual need of the requesting party. As we said in Turner v. Reed, supra:

“[T]he policy that permeates the disclosure statutes and legislative history is that disclosure decisions should be based on balancing those public interests that favor disclosure of governmental records against those public interests that favor governmental confidentiality, with the presumption always being in favor of disclosure.” 22 Or App at 187. (Emphasis supplied.)

The publication of a mere summary simply produces one more document that is subject to disclosure; it does not lessen the public interest in disclosure of the material summarized or increase the public interest in encouraging frank discussion.

*173We have examined the biologists’ individual responses and adhere to our original holding that the presumption favoring disclosure outweighs any evidence to the contrary.4 Because we hold that with respect to the responses in their entirety we need not decide what steps defendant would otherwise have to take to separate exempt material from nonexempt material. Any “chilling effect” that disclosure may have on future communications within the agency, because of potential embarrassment to the agency or its employes, is not sufficient, in and of itself, to overcome the presumption favoring disclosure. See, e.g., Turner v. Reed, supra. To hold otherwise would effectively exempt from disclosure all interagency communications that are advisory in nature and cover other than purely factual matters.

Petition for reconsideration allowed; former opinion adhered to.