Or. Admin. R. 603-095-1700 – Purpose – Walla Walla

(1) These rules have been developed to implement a water quality management area plan for the subbasin pursuant to authorities vested in the department through ORS 568.900–568.933. The area plan is known as the Walla Walla Agricultural Water Quality Management Area Plan.
(2) The purpose of these rules is to outline requirements for landowners in the Walla Walla Agricultural Water Quality Management Area, for the prevention and control of water pollution from agricultural activities and soil erosion. Compliance with division 95 rules is expected to aid in the achievement of applicable water quality standards in the Walla Walla River Subbasin.

ORS 561.190 - 561.191 & 568.912

ORS 568.900 - 568.933