Oregon Administrative Rules › Chapter 340 - DEPARTMENT OF ENVIRONMENTAL QUALITY › Division 50 - LAND APPLICATION OF DOMESTIC WASTEWATER TREATMENT FACILITY BIOSOLIDS, BIOSOLIDS DERIVED PRODUCTS, AND DOMESTIC SEPTAGE › Section 340-050-0031 - Biosolids and Domestic Septage Management Plans

Current through Register Vol. 63, No. 7, July 1, 2024
(1) Any person who intends to land apply
			 biosolids or domestic septage shall submit a solids management plan to the
			 Department for review and approval. Unless otherwise authorized in writing by
			 the Department, solids management plans shall be submitted a minimum of 60 days
			 before biosolids land application commences.
(2) Provisions established in Department
			 approved biosolids or domestic septage management plans shall be considered
			 NPDES, WPCF, or Solid Waste Disposal permit conditions.
(3) The biosolids or domestic septage
			 management plan shall be kept current and remain on file with the permit or
			 license. Plan modification requires written Department approval.
(4) Septage management plans must address the
			 quantities of septages handled annually, types of septage processed, solid
			 storage facilities, and solids land application or disposal
			 facilities.
(5) Biosolids and
			 domestic septage management plans must include:
(a) A description of the method(s) of solids
			 removal;
(b) For wastewater and
			 septage treatment facilities, a detailed description of the wastewater
			 processing facility, including unit processes used in wastewater treatment;
			 source design flow (gpd); and wastewater flow origin (e.g., percent domestic,
			 industrial, commercial, and domestic septage);
(c) An indication of how primary, secondary,
			 and tertiary solids or septages are removed, thickened, digested, and
			 dewatered;
(d) A description of the
			 quantities of raw and stabilized solids volumes generated annually;
(e) The means used to attain pathogen
			 reduction, and data confirming pathogen reduction has been
			 accomplished;
(f) The method(s) for
			 determining degree of solids stability, and data supporting means of
			 stabilization;
(g) The projected
			 use and volume of solids storage basins (if appropriate) and a description of
			 additional treatment which occurs during storage;
(h) A description of the means used to
			 transport, temporarily store (if applicable), and apply biosolids or domestic
			 septage at Department authorized land spreading sites;
(i) A description of biosolids monitoring and
			 sampling program and biosolids analysis, including but not limited to
			 nitrate-nitrogen, ammonia nitrogen, total Kjeldahl nitrogen (TKN), phosphorus,
			 potassium, total solids, volatile solids, arsenic, cadmium, copper, lead,
			 mercury, molybdenum, nickel, selenium, zinc, and pH.
			 (
Note:
Septage management plans do not
			 require these analyses.
);
(j) The delineation of land application site
			 selection criteria, crops and crop assimilative capacity (nitrogen), and site
			 management practices, including but not limited to annual and long-term
			 application rates, and testing and sampling;
(k) The identification of all Department
			 authorized biosolids or domestic septage land application sites;
(l) A description of biosolids or domestic
			 septage land application site monitoring, recordkeeping, and reporting
			 procedures; and
(m) A description
			 of remedial procedures that would be implemented in the event of a solids
			 treatment process failure (e.g., digester breakdown or upset), solids spill at
			 the wastewater treatment facility or solids generating source, or biosolids or
			 domestic septage spill between the generating source and land application
			 site.