Or. Admin. R. 690-240-0011
Organic materials which foster or promote undesired organic growth or have the potential to degrade water quality shall not be employed in the construction of a well. This includes, but is not limited to, brans, hulls, grains, starches, and proteins.
ORS 536.090 & 537.505 - 537.795
ORS 536.090 & 537.505 - 537.795
WRD 7-2001, f. & cert. ef. 11-15-01