1. SWGWMA and Permitted CAFOs January 2009

2. Definition of “CAFO” Confined Animal Feeding Operation as defined in OAR 603-074-0010(3) Confined Animal Feeding Operation as defined in OAR 603-074-0010(3) The concentrated confined feeding or holding of animals or poultry, including but not limited to horse, cattle, sheep, or swine feeding areas, dairy confinement areas, slaughterhouse or shipping terminal holding pens, poultry and egg production facilities and fur farms; The concentrated confined feeding or holding of animals or poultry, including but not limited to horse, cattle, sheep, or swine feeding areas, dairy confinement areas, slaughterhouse or shipping terminal holding pens, poultry and egg production facilities and fur farms; In buildings or in pens where the surface has been prepared with concrete, rock or fibrous material to support animals in wet weather; or In buildings or in pens where the surface has been prepared with concrete, rock or fibrous material to support animals in wet weather; or That have wastewater treatment works; or That have wastewater treatment works; or That discharge any wastes into waters of the state; or That discharge any wastes into waters of the state; or An animal feeding operation that is subject to regulation as a concentrated animal feeding operation pursuant to 40 CFR 122.23 An animal feeding operation that is subject to regulation as a concentrated animal feeding operation pursuant to 40 CFR 122.23

3. 2003 CAFO Changes Adoption of new NPDES Permit - August 2003 Adoption of new NPDES Permit - August 2003 Required Confined Animal Feeding Operations to register for permit coverage Required Confined Animal Feeding Operations to register for permit coverage New permit merged state and federal CAFO definitions New permit merged state and federal CAFO definitions Permit coverage was extended to CAFO’s with wet and dry systems, meeting the confinement definition Permit coverage was extended to CAFO’s with wet and dry systems, meeting the confinement definition 2009 CAFO NPDES Permit renewal in progress. 2009 CAFO NPDES Permit renewal in progress. Joint issuance by ODA and DEQ (EQC) Joint issuance by ODA and DEQ (EQC)

4. CAFOs in OR GWMAs CAFOs in OR GWMAs MalheurOntario MalheurOntario UmatillaHermiston UmatillaHermiston MalheurWQ Trend<<<<<<< MalheurWQ Trend<<<<<<< UmatillaWQ Trend>>>>>>> UmatillaWQ Trend>>>>>>> S. Willamette WQ Trend????????? S. Willamette WQ Trend?????????

5. CAFOs in OR GWMAs Malheur58 Permit Registrations Malheur58 Permit Registrations Umatilla17 Permit Registrations Umatilla17 Permit Registrations S. Willamette 8 Permit Registrations S. Willamette 8 Permit Registrations MalheurMedium % of area MalheurMedium % of area UmatillaSmall % of area UmatillaSmall % of area S. Willamette Small % of area S. Willamette Small % of area

6. CAFOs in OR GWMAs CAFOs in OR GWMAs LOAD Calculations LOAD Calculations BIG & Visible BIG & Visible It’s unseen, out of sight….. It’s unseen, out of sight….. Lots of contributors Lots of contributors TARGET TARGET

7. CAFOs in OR GWMAs CAFOs in OR GWMAs Draft LUBGWMA ‘N’ Loading Evaluation Draft LUBGWMA ‘N’ Loading Evaluation CAFOs apply ~2% of total N CAFOs apply ~2% of total N CAFOs estimated contribution to leached N is CAFOs estimated contribution to leached N is ~<2% of total N leached. ~<2% of total N leached. Irrigated Ag estimated contribution is ~67% of total N leached. Irrigated Ag estimated contribution is ~67% of total N leached.

8. CAFOs in OR GWMAs CAFOs in OR GWMAs Report Card soil test results = AWMP modifications and management changes. Report Card soil test results = AWMP modifications and management changes. 2 facilities (horse, beef) need Permit coverage. 2 facilities (horse, beef) need Permit coverage. Unique manure treatment system = manure digester producing methane. Unique manure treatment system = manure digester producing methane. Non-Permitted CAFOs, manure storage practices. (piles) Non-Permitted CAFOs, manure storage practices. (piles)