Clarification of Upriver Dam Hydroelectric Project Spillway Gate Operation Certificate

The City of Spokane Water Department has submitted a supplemental certificate to the Federal Energy Regulatory Commission (FERC) regarding the Upriver Dam Hydroelectric Project. The document aims to clarify discrepancies in the previous certification process, specifically regarding the dates and gate heights of the spillway gate operation and load testing of the standby power. The department has acknowledged the errors and provided a corrected notarized certificate to avoid any confusion.

Key Takeaways:

• The City of Spokane Water Department submitted a supplemental certificate to the FERC to correct errors in the previous Annual Spillway Gate Operation Certificate.
• The original certificate showed conflicting information regarding the dates and gate heights of the spillway gate operation and load testing of the standby power.
• The supplemental certificate clarifies that the full open testing was performed independently of the amperage testing and provides the correct dates and gate heights.
• The department emphasized that all other data on the previous certificate remains accurate.
• The corrected notarized certificate was signed by David St Pierre, Chief Dam Safety Engineer, on May 29, 2025.
• The certificate is accompanied by an enclosure titled "20250529 Supplemental Notarized Gate operation Certificate.pdf".
• The errors were acknowledged, and the department has taken steps to prevent similar issues in the future.
• The corrected certificate was submitted to the FERC for review and approval.

Statistics:

• The corrected supplemental certificate was signed on May 29, 2025.
• The original certificate was notarized on April 25, 2025.
• The full open gate testing was performed with a gate height of 1 foot.
• The amperage testing was also performed on April 2, 2025.
• The corrected certificate clarifies that the full open testing was performed independently of the amperage testing.
• The notarization date of the supplemental certificate is May 29, 2025.
• The contact information for the department is 509-742-8165 (phone) and dstpierre@spokanecity.org (email).

Sources:

• Acting Regional Portland Engineer Federal Energy Regulatory Commission (FERC) Portland Regional Office (PRO) Re.d2si-pro@ferc.gov RE: Upriver Dam Hydroelectric Project, P-3074-WA; Transmittal of Supplemental 2025 Spillway Gate Operation Certificate