Oregon Administrative Rules
Chapter 340 - DEPARTMENT OF ENVIRONMENTAL QUALITY
Division 71 - ONSITE WASTEWATER TREATMENT SYSTEMS
Section 340-071-0285 - Redundant Systems
Universal Citation: OR Admin Rules 340-071-0285
Current through Register Vol. 63, No. 3, March 1, 2024
(1) Criteria for approval. Construction permits may be issued for redundant absorption field systems to serve single family dwellings on sites that meet both of the following conditions.
(a) The lot
or parcel was created before January 1, 1974.
(b) The lot or parcel size will not
accommodate a standard system.
(2) Design criteria:
(a) Each redundant absorption system must
contain two complete absorption fields.
(b) Each absorption field must be large
enough to accommodate the projected daily sewage flow from the
dwelling.
(c) A minimum separation
of 10 feet (12 feet center to center) must be maintained between absorption
trenches designed to operate simultaneously, and a minimum separation of 4 feet
(6 feet center to center) must be maintained between adjacent absorption
trenches.
(d) The system must be
designed to alternate between the absorption fields with the use of a diversion
valve or other method approved by the agent.
Stat. Auth.: ORS 454.625 & 468.020
Stats. Implemented: ORS 454.615 & 454.775
Disclaimer: These regulations may not be the most recent version. Oregon may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
This site is protected by reCAPTCHA and the Google
Privacy Policy and
Terms of Service apply.
