OAR 603-095-1840: Required Prevention and Control Measures

All landowners or occupiers conducting activities on lands in agricultural use shall be in compliance with the following criteria. A landowner shall be responsible for only those conditions caused by activities conducted on land managed by the landowner. Criteria do not apply to conditions resulting from unusual weather events or other exceptional circumstances which could not have been reasonably anticipated. (1) Pollution Control and Waste Management. No person subject to these rules shall violate any provision of ORS 468B.025 or ORS 468B.050. (2) Streamside Conditions. (a) No person may contribute to conditions that preclude establishment and development of adequate riparian vegetation for streambank stability and shading, consistent with site capability. (b) If any agricultural activity disturbs enough streamside vegetation to impair the conditions and functions described in 603-095-1840(2)(a), the landowner or operator must replant or restore the disturbed area with vegetation that will provide the functions. (3) Irrigation Return Flow. No person may cause bacteria levels in irrigation tailwater to exceed state water quality standards. When the irrigation water at the point of initial application already exceeds the bacteria standard, then the bacteria level in the tailwater cannot be higher than the level in the irrigation water at the point of initial application.