The changes in the Corps wetlands definition meant that the task before Judge Gilmore was essentially that of applying this new definition to the facts as found by Judge Kennedy in the earlier proceeding to determine whether the Riverside property below the elevation of 575.5 feet above sea level is or is not a wetland. Our order remanding this case to the District Court for further examination in light of the new regulation did not make the nature of the inquiry clear, however. We did not point out to Judge Gilmore precisely what we expected him to do.

We should have directed the District Court to consider the voluminous evidence from the seven days of testimony given earlier and to make a finding as to whether the Riverside property to the south and east of the contour line of an elevation of 575.5 feet, as it exists now, should be classified as a wetland. Instead, in the absence of clear directions, the District Judge on remand simply found from a common-sense reading of the new language that the amended regulation was "broader than its predecessor." Presumably, his reasoning from there was that, since Judge Kennedy had found that the property was "periodically inundated," and since it does support some aquatic vegetation, it must therefore be inundated "at a frequency and duration sufficient to support, and that under normal circumstances [does] support" wetlands vegetation.

It does not necessarily follow, however, that because an area has been flooded five times in more than eighty years that, "as it exists" now, it is "inundated at a frequency and duration sufficient to support and that under normal circumstances [does] support" wetlands vegetation. The new regulation makes clear that it is the present occurrence of inundation or flooding sufficient to support wetlands vegetation, not the mere presence of such vegetation from some other cause, that determines whether a particular area is a wetland. Thus, as we understand it, the presence of inundation on the land "as it exists" now, sufficient to cause the growth of aquatic vegetation, is necessary to satisfy the wetlands definition. Neither inundation nor aquatic vegetation would be sufficient, standing alone, to bring a piece of land within the definition. Both must be present, and the latter must be caused by the former.Were this not so, then areas which inexplicably support some species of aquatic vegetation, but which are not normally inundated, would fall within the wetlands definition. Such a perverse result could not have been what the Corps contemplated in promulgating the regulation. Indeed, as noted earlier, the Corps expressly adverted to the situation of "areas that are not aquatic but experience an abnormal presence of aquatic vegetation" and emphasized that such lands were not intended to be covered by the regulations.

Turning now to the facts as found by Judge Kennedy, and applying our interpretation of the new wetlands definition to those facts, we conclude that the Riverside land is not a wetland. We note at the outset that Judge Kennedy did not find that the land, "as it exists" now, is inundated. Nor is there evidence in the record to support such a finding. After examining the evidence, Judge Kennedy found that the land had only been flooded on four to six occasions in the eighty years of recorded history of the area. Although flooding of such infrequency might properly be *397 called "periodic," it cannot fairly be said that it describes the land "as it exists."

Judge Kennedy did find that, quoting from the old regulation, the Riverside land was characterized "by the prevalence of vegetation that requires saturated soil conditions for growth and reproduction." Significantly, however, she found that the source of this vegetation was the type of soil found on the property and not the few instances of flooding. The evidence supports her determination that the infrequent inundation caused by the adjacent navigable water, Black Creek, was not the cause of the wetland vegetation. Thus she did not find, and on the evidence presented could not have found, that the land, as it exists now, is "inundated at a frequency and duration sufficient to support, and that under normal circumstances [does] support" the wetlands vegetation. Nor did she consider or make any findings concerning the question whether the Riverside land fits the Corps definition of an area which is technically not a wetland, because it is not inundated, but which experiences an abnormal presence of aquatic vegetation. [FN3]

In the absence of evidence that the property as it exists now is frequently flooded and that the flooding causes aquatic vegetation to grow there, the government's case is insufficient to justify a classification of this property as a wetland subject to the jurisdiction of the Corps of Engineers. The injunction is therefore vacated.

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