Prior Appropriation WR

Envision’s Water RightInput data

1. Spatial Data a. OWRD Point of Use (POU) layer b. OWRD Point of Diversion (POD) layer c. WW2100 IDU layer d. WW2100 Stream layer

2. Text file (columns and Rows) a. POD table i. WR ID number ii. Coordinates iii. Place of Use POUID iv. PODID v. Diversion rate (m3/sec) vi. Diversion type (ground, surface, etc) vii. Use codes (Muni., irrigation, etc) viii. Priority date (>1839) iv. Relates to Envision Reach x. Begin and End dates for diversions a. POU table i. POUID ii. IDU_INDEX Relates to Envision IDUs iii. Area of intersection m2

Envision’s water right to do list

Surface water

1. How to represent Minimum Flows throughout the stream reach network a. Control Points on the mainstem (reservoir operation USACE) b. OWRD In stream Water Rights (only some reaches) c. Total Maximum Daily Load (TMDL) (relationship between discharge and temperature) 2. Contracted Water Rights stored in reservoirs (USACE) a. Priority dates? b. Points of Use?

Ground water (under development)

Stream Reach Discharge (SRD)m3/day

IDU Water Demand (m3/day)

Calculate Available ReachDischarge (ARD) m3/day.

ARD = SRD – minFlow – ISU - OSUIs ARD ≥ 0?

no yes

Consider next junior WR

Is the Use an “In Stream” Use (ISU)

Add Demand rate to “Out Stream” Use

(OSU)

Add Demand rate to ISU

yes no

Flow Model (daily time step loop)

HRUs (comprised of stream reaches)

Water Right loop ( begin with Senior WR )

Have all IDUs been considered?

Consider next IDU

Subtract Out Stream Use from Stream Reach Discharge

SRD = SRD - OSU

IDU loop ( A Place Of Use can have multiple IDUs)

no yes

Have all WR been considered

Consider next WR

no

Aggregate SRD to HRU

yes

IDU WR Use

Point Of Diversion

Place of Use

POU data input file

POD data input file

http://www.oregon.gov/owrd/pages/wr/wrisuse.aspx

Point Of Diversion

Place Of Use

POU

POD

Luckiamute

Willamette

Reach

1971

1990

● Each Point of Diversion is associated with a stream Reach.__ Each Point of Use intersects with one or more IDUs.

In stream WR

Out stream WR