1. Within eighteen months of the effective date of this title the
commissioner, in cooperation with the state soil and water conservation
committee, shall prepare a report which:
a. identifies those water bodies within the state which, without
additional action to control nonpoint sources of pollution, cannot
reasonably be expected to attain and maintain applicable water quality
standards; and
b. identifies categories or subcategories of nonpoint sources or
particular nonpoint sources which add significant amounts of pollution
to each water body identified above.
2. The report prepared pursuant to this section shall be revised by
the commissioner in cooperation with the state soil and water
conservation committee at least every five years.