OAR 603-074-0019: Water Supply Plan

(1) A WSP shall identify all sources of the water that will be used to supply the level and duration of the water needs of the CAFO, including any ancillary operations of the CAFO, as described in the application, including but not limited to: irrigation; livestock watering, cooling, or cleaning; facility washing, cleaning, or flushing; milk and food processing; and dust control. (2) A WSP for a CAFO that uses stockwater as described in ORS 537.545(1)(a) must use animal water consumption guidelines provided by the Department in section (5) of this rule, to estimate the gallons per day that the CAFO will use. (3) After receiving a WSP described in section (1) of this rule , the Department shall request that OWRD review the WSP to determine whether the water uses identified in the WSP are legally authorized and allowable. (4) The Department may condition a permit under ORS 468B.050 on the recommendation of OWRD on one or more of the following: (a) Requiring a CAFO that uses stockwater, as described in ORS 537.545(1)(a), or a person renewing a permit under ORS 468B.050 for a CAFO to: (A) Install water metering and submetering devices concerning a new or expanding production area; and (B) Maintain quarterly water use data that OWRD may inspect annually, upon request by OWRD. (b) Prohibiting an expanding CAFO within a critical ground water area designated by order or pursuant to ORS 537.730 from increasing the CAFO’s use of water per day under the exemption described in ORS 537.545(1)(a) by more than the limit described in ORS 537.545(1)(a). (5)(a)Animal Water Consumption Guidelines - These are general animal water consumption guideline numbers used for the purposes of determining stockwater consumption needs, but the agency acknowledges the priority to protect animal welfare. (b)Type of animal and drinking water consumption (gallons per day) (A) BEEF (i) Bull, 20.6 (ii) Lactating, 20 (iii) Gestating, 17.5 (iv) Calf, 10 (v) Feeder cattle, 24 (B) Dairy (i) Bull, 20 (ii) Milking cow, 54 (iii) Dry cow, 15 (iv) Heifer, 10 (v) Calf, 10 (C) Swine (i) Boar, 6 (ii) Sow, 6 (iii) Weaner, 2 (iv) Feeder, 3 (D) Chicken (i) Broiler, 203.4/1000 birds (ii) Layer, 84.5/1000 birds (iii) Breeder, 85/1000 birds (iv) Pullet, 48/1000 birds (E) Turkeys (i) 15-21 week, 300.9/1000 birds (ii) 1-7 week, 118.3/1000 birds (F) Sheep/goats (i) Ram, 2 (ii) Gestating, 2.5 (iii) Lactating, 3.5 (iv) Lamb/kid, 3.5 (G) Equine (i) Horses, 21.7 (ii) Donkeys, 15.6 (iii) Mules, 15.6 (H) Others – Consult with ODA (6) A person that renews a WPCF or NPDES Permit shall attest upon renewal of the permit that the WSP for the CAFO that was previously approved by OWRD under section (3) of this rule is accurate and reflective of the operation.