Ochoco Creek

Measure CR 2: Ochoco Creek Flow Responsible Permittee: [OID] Species Affected: bull trout, steelhead, sockeye salmon OID Contributions to Ochoco Creek Flow: OID will contribute to the flow in Ochoco Creek as specified in Table CR 2 by releasing water from the Ochoco Main Canal downstream of Ochoco Reservoir. These contributions will be additive to any permanent instream water right transfers and/or temporary instream leases secured through the Crooked River Conservation Fund (Measure CR 5) on Ochoco Creek. The OID contributions will not be made if they would require pumping from inactive storage in Ochoco Reservoir (below water surface elevation 3,074.94 feet) unless OID is pumping water from inactive storage for irrigation purposes. If mechanical failure or malfunction at Ochoco Dam prevents the release of the full amount specified in Table CR 2, the OID contribution will be the maximum amount Reclamation determines can safely be released, and the full contribution will be resumed as soon as the mechanical problem or malfunction is corrected. Table CR 2. Ochoco Irrigation District contributions to Ochoco Creek flow. ─────────────────────────────────────────────────────────────────┬───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┬──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── │Average OID Contribution¹ │ ─────────────────────────────────────────────────────────────────┼─────────────────────────────────────────────────────────────────┬─────────────────────────────────────────────────────────────────┼─────────────────────────────────────────────────────────────────┬────────────────────────────────────────────────────────────────── Stream Reach │During Active Irrigation Season² │Outside Active Irrigation Season │Measurement Location │Averaging Interval ─────────────────────────────────────────────────────────────────┼─────────────────────────────────────────────────────────────────┼─────────────────────────────────────────────────────────────────┼─────────────────────────────────────────────────────────────────┼───────────────────────────────────────────────────────────────── Ochoco Dam (RM 11.2) to D 2 Drain Confluence (RM 6.3) │5.0 cfs │3.0 cfs │[OWRD Gage 14085300] below Ochoco Dam │Hourly ─────────────────────────────────────────────────────────────────┼─────────────────────────────────────────────────────────────────┼─────────────────────────────────────────────────────────────────┼─────────────────────────────────────────────────────────────────┼───────────────────────────────────────────────────────────────── D 2 Drain Confluence (RM 6.3) to mouth │5.0 cfs │5.0 cfs │RM 4.7 at Ryegrass Diversion │Daily ─────────────────────────────────────────────────────────────────┴─────────────────────────────────────────────────────────────────┴─────────────────────────────────────────────────────────────────┴─────────────────────────────────────────────────────────────────┴───────────────────────────────────────────────────────────────── 1 Actual contributions to flow in Ochoco Creek may be ±10% of amounts specified in Table CR 2 due to inherent inaccuracies in flow measuring devices. ───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── 2 For purposes of this conservation measure, the active irrigation season on Ochoco Creek is the period of time during which water is being released from Ochoco Reservoir into the Ochoco Main Canal for irrigation. This period typically occurs from mid April to mid October, with actual dates varying slightly from year to year. ───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── Pass through of Upstream Temporary and Permanent Instream Transfers: Subject to approval by OWRD on a case-by-case basis, OID will allow water from temporary and permanent instream water right transfers upstream of Ochoco Reservoir to pass through the reservoir and to the mouth of Ochoco Creek without storage or diversion, regardless of whether the associated water rights are senior or junior to OID’s storage and diversion rights. These instream enhancement projects may be subject to other private diversions based on priority dates according to the doctrine of prior appropriation. Ochoco Creek is also affected by CR-4 and CR-5, conservation measures that are not dependent on stream gauging. Please see [DESCHUTES BASIN HCP: Conservation Measures & Monitoring Requirements] for more information.