Water Use Rules in Multnomah County, OR (2026)
2 rules for unincorporated Multnomah County, Oregon.
Verified from official government sources
Recycled Water Rules
Multnomah County's Exclusive Farm Use zone allows landowners to land-apply reclaimed water, industrial process water or biosolids for irrigation and crop production under MCC 39.4220(Y), but only with an Oregon DEQ license or permit under specific water-quality statutes governing where and how the application can occur.
Multnomah County Recycled Water Land Application
Some RestrictionsMultnomah County Code § 39.4220(Y)
(Y) Land application of reclaimed water, agricultural or industrial process water or biosolids or the onsite treatment of septage prior to the land application of biosolids, for agricultural, horticultural or silvicultural production, or for irrigation in connection with a use allowed in the Exclusive Farm Use zone. Subject to the issuance of a license, permit or other approval by the Departmen...
Leak Reporting Duty
In the county's Dunthorpe Riverdale sewerage district, licensed contractors can fix a leaking or broken pipe, sewer, drain or conduit immediately without a permit, but must file for one within 48 hours.
Multnomah County Emergency Sewer Leak Repairs
Some RestrictionsMultnomah County Code § 27.753(B)
Emergency repairs involving leakage or breakage in any pipe, sewer, drain or conduit, requiring immediate action, may be performed by any person licensed or certified to perform such work, without first obtaining a permit, provided appropriate permit applications, along with payment of prescribed fees are completed within 48 hours, excluding Sundays and holidays. All conditions which may be imp...
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