CW3E id: MLL
CDEC id: MCR
NWS id: --
Lat/Long: 39.282206 / -123.300137
Elevation: 305m
Team Lead: John Deane
Install Date: Sept. 21, 2017
Permit Expires: --
Watershed: Russian
Telemetry: Cell
Monument: Pole
Land Owners: private
Permit Type: Handshake
Site Type: Stream

Site Photo:

Figure 1. Staff plate and stilling well at MLL

Figure 2. Photo looking towards the tree on the opposite bank where a trail cam is installed


Site Description:

The Pipers own land in the Redwood Valley watershed (outside Lake Mendocino watershed), including hills and a portion of Mill Creek, a significant tributary of the WF Russian River. The stream gauge is located on the north bank of Mill Creek just north of a sharp left bend in Reeves Canyon Road before the Pipers’ driveway. (and before the last wooden bridge). There is a small pull-off of grass right where the gauge is. The tube is horizontal beneath the water right next to the staff plate. It is on the right side of the road on the north bank. Access is via Highway 101 to Reeves Canyon Road in Redwood Valley. Contacting the Pipers before access is not necessary but may be appreciated.


The primary geology of this area is slate, including lots of chlorite. The banks have steep, eroding ledges. The streambed is pebbly and sandy (very fine to coarse, poorly sorted, angular to sub-rounded grains).


Notes: 18 April 2023 visit revealed that a huge stream channel change occurred during WY2023 winter.  The original stilling well location is now in a secondary channel. The primary channel has shifted to the opposite side of the stream and required relocation of the stilling well and staff plate completed 10/09/2023



Tasks

Due Owner Created By Details
-- Sarah Burnett Sarah Burnett Period 11/11/2021-12/10/2021 missing data b/c BCC surface met station pressure was reporting ~500. Need to think about using another station's pressure for this period.
-- Sarah Burnett Sarah Burnett Find old camera sensor info and add here (cameras before force-pro-s and cell link)
-- Sarah Burnett Sarah Burnett Find better solution for the slippery stairway down to the stream.
-- Sarah Burnett Sarah Burnett The bottom of the stilling well is floating about 6-8in above bottom of the stream. Consider changing reference level or moving stilling well to more stable location.


Sensors

TypeLabelModelSNInstalled On
Pressure transducer--ONSET MX2001-04-SS-S21755828Oct. 9, 2023
Trail Camera--Spypoint Flex-S2J322I0111June 24, 2024


Other Equipment

TypeLabelModelSNInstalled On
Data LoggerNoneHOBO RX2100 Station - CELL-4G21798327Oct. 9, 2023
Staff gageNone-----------NoneSept. 21, 2017


Visits

OnSummary
Feb. 7, 2025High water check
Dec. 18, 2024Manual Discharge Measurement / Repaired staff plate
Dec. 6, 2024Manual Discharge Measurement / Trail Cam Download
June 24, 2024Staff Plate Repaired / Manual Discharge Measurement / Trail Cam Replaced / Stream Survey
March 7, 2024Manual Discharge Measurement / Trail Cam Download / Maintenance
March 6, 2024Attempted Manual Discharge Measurement
March 4, 2024Staff Plate Snapped (visual confirmation)
Oct. 11, 2023Reference Level Check / Added Conduit
Oct. 9, 2023Data Download / Manual Discharge Measurement / Telemetry Installed / Trail Cam Installed / Relocated Staff Gage and Stilling Well
April 20, 2023Demobed Trail Cam
April 18, 2023Data Download / Manual Discharge Measurement / Maintenance
June 1, 2022Data Download / Manual Discharge Measurement
Jan. 26, 2022Data Download / Manual Discharge Measurement / Maintenance / Turbidity Samples / Installed Telemetered Trail Cam / Installed Barologger
Dec. 12, 2021Installed new Direct Read Cable / Data Download / Stream Survey
March 20, 2021Data Download / Missing Trail Cam
Sept. 21, 2017Stream Gage Installed / Stream Survey
Aug. 8, 2017Staff Plate and Camera Installed


Funding Sources

StartEndSource
Sept. 21, 2017 -- USACE FIRO