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IITEM: |
INFORMATIONAL ITEM/STAFF REPORT |
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21. |
CARMEL RIVER FISHERY REPORT FOR SEPTEMBER
2025 |
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Meeting Date: |
October 20, 2025 |
Budgeted: |
N/A |
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From: |
David J. Stoldt, |
Program/ |
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General Manager |
Line Item
No.: |
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Prepared By: |
Cory Hamilton |
Cost Estimate: |
N/A |
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General Counsel Review: N/A |
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Committee Recommendation: N/A |
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CEQA Compliance: This action does not
constitute a project as defined by the California Environmental Quality Act
Guidelines Section 15378. |
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AQUATIC HABITAT AND FLOW CONDITIONS: During September, river flows continuously decreased
throughout the entire month creating continued stranding conditions in parts of
the lower river. Tributaries of the
Carmel River continued to dry up and the mainstem is
intermittent around the Shulte Bridge area down to the Palo Corona area, as
well as the Trail and Saddle Club area. The lagoon mouth was closed for the
entire month (see graphic below). Rearing conditions were adequate in the upper
river, except for the Trail and Saddle area, which is intermittent. Los Padres
Reservoir stopped spilling on June 13, 2025 and we
began using storage to meet flow requirements.
The water surface elevation at the end of the month was 1019.10 feet,
Flow out of the reservoir at the end of the month was 4.7 cfs, while the
incoming flow into the reservoir was 1.0 cfs.
September’s streamflow at the Sleepy
Hollow Weir gaging station ranged from 4.0 to 5.5
cfs (mean 4.5 cfs), while flows at the Highway 1 gage ranged from 0.08 to 0.2 cfs
(mean 0.15 cfs).
There was 0.21 inches of measurable rainfall in September
as recorded at the San Clemente gauge. The total rainfall for Water Year
(WY) 2025 (which started October 1, 2024) is 16.89 inches., which is 80%
of normal to date.
FISH RESCUE: On May 16, 2025, District staff started fish rescues due to
drying conditions in the tributaries. On
June 27, 2025, staff started conducting fish rescues in the mainstem Carmel
River, impacted areas include the Crossroads area to the Shulte Bridge area, as
well as the Trail and Saddle club area, for a total of approximately 5 miles.
As of the end of September, a total of 7,470 fish have been rescued (6,475 YOY, 968 1+ year olds, 3 adult kelt
and 24 mortalities). Fish are being released and tagged this season in a
variety of locations in order to track which produces
the best return rates (part of the Rescue and Rearing Management Plan’s release
strategy). These release areas are the
lagoon, perineal waters of the mainstem and the Sleepy Hollow Steelhead Rearing
Facility.
CARMEL RIVER LAGOON: In September, the lagoon’s Water Surface
Elevation (WSE) ranged from approximately 6.5 to 6.75 feet (NGVD 1988) (see
graph below). Water quality depth-profiles were conducted at five sites on September
15, 2025, while the lagoon mouth was closed, water surface elevation was 6.5
feet at the time of sampling, and river inflow was approximately 0.20 cfs. The north arm of the lagoon was disconnected
from the main lagoon with intermittent pools.
Lagoon stratification was observed at about 1.5 meters depth only in the
south arm. Salinity levels ranged from 1.9-8.2 parts per thousand (ppt), throughout
the lagoon. Water temperatures ranged
from 67.5-73.6 degrees Fahrenheit, and dissolved oxygen (DO) levels ranged from
0.14-18.2 mg/l.

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