ITEM:

INFORMATIONAL ITEM/STAFF REPORT

 

20.

CARMEL RIVER FISHERY REPORT FOR DECEMBER 2024

 

Meeting Date:

January 27, 2025

Budgeted: 

N/A

 

From:

David J. Stoldt,

Program/

N/A

 

General Manager

Line Item No.:

 

 

 

Prepared By:

Cory Hamilton

Cost Estimate:

N/A

 

General Counsel Review:  N/A

Committee Recommendation:  N/A

CEQA Compliance:  This action does not constitute a project as defined by the California Environmental Quality Act Guidelines Section 15378.

 

AQUATIC HABITAT AND FLOW CONDITIONS: A couple more inches of rain fell in December, resulting in a continual increase in streamflow in the Carmel River. This increased the lagoon water levels to above “action” levels of 10 feet (see graphic). On December 16th, the Monterey County Public Works artificially breached the mouth of the lagoon to prevent homes from flooding at a lagoon water surface height of 10.31 feet. The lagoon continued to open and close periodically the rest of the month.   Los Padres Reservoir increased to a water surface elevation of 1039.50 feet by the end of the month, which is 0.5 feet from spill.  Flow release out of the reservoir at the end of the month was 11 cfs, while the incoming flow into the reservoir was 25 cfs.

 

December’s streamflow at the Sleepy Hollow Weir gaging station ranged from 9.0 to 22 cfs (mean 14.2 cfs), while flows at the Highway 1 gage ranged from 9.2 to 22 cfs (mean 14.5 cfs).

 

There was 2.43 inches of rainfall in December as recorded at the San Clemente gauge. The total rainfall for Water Year (WY) 2025 (which started October 1, 2024) is 5.33 inches., which is 79% of normal.

 

FISH RESCUES:  Conditions in the river are now sufficient to halt monitoring for fish rescue activities. Staff performed 32 rescue operations and rescued a total of 5,633 steelhead out of the Carmel River Basin this season.

 

ADULT MONITORING:  District staff are monitoring conditions to install the resistance board weir, which is used to enumerate adult steelhead entering the Carmel River.  Staff also initiated its critical riffle monitoring surveys this month in preparation for the ASR diversion season.  Five riffles have been selected and will be monitored once conditions are met for diversion.

 

 

 

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