AMERICAN RIVER
WATERSHED GROUP
October
19, 2006
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- The
meeting of the American River Watershed Group (ARWG) was called to
order by Bill Templin, North Fork American River Watershed
Coordinator at 10:00 a.m. at the Auburn Recreation District Canyon
View Community Center located at 471 Maidu Drive, Auburn.
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- Present:
Bill Templin, North Fork American River Watershed Coordinator; Rich
Gresham, Stan MacDonald, Stewart Feldman, and Katie Maloney, Placer
County Resource Conservation District ; Austin Mulder, South Fork
American River Watershed Coordinator-El Dorado County RCD; Marilyn
Jasper, Clover Valley Foundation and Sierra Club; Caroline Hickson,
Colfax resident; Rick Weaver, Hydrologist US Forest Service (USFS);
Dan Teater, Fish Biologist, USFS; Bill Cave, Auburn Lake Trails Fire
Safe Council Chair; Kevin Roberts, Biologist, Sierra Pacific
Industries; Dick Towle, Volunteer Fire Chief; Mal Toy, Placer County
Water Agency (PCWA); Edmund Sullivan, Placer County; and Eric Peach,
Protect American River Canyons (PARC).
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- Check-In:
-
Bill
Templin led the “Check-In” procedure that entails
telling who you are, how you are, if you have any time constraints,
emergent issues, and/or individual expectations.
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- Review & Approval of
Minutes:
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No
changes were requested to the September meeting minutes.
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- Guest
Speaker: Rick Weaver, Tahoe National Forest “Ralston
Fire Burned Area Emergency Response (BAER) Report”
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- Bill
introduced Rick Weaver, USFS Hydrologist and member of the Ralston
Fire Burn Area Emergency Response (BAER) Team and invited Rick to
proceed with the briefing on the BAER Team’s response to the
September Ralston Fire that impacted both the Eldorado and Tahoe
National Forests.
- Rick
reviewed the BAER Team members that included members with expertise
in hydrology, geology, archaeology and road engineering in addition
to the BAER Team Leader. The following is excerpted from the
PowerPoint Rick reviewed with the Group:
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- BAER Principles:
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An Emergency
-
Caused
or Aggravated by Fire
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Minimum and Temporary Treatments
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Proven Methods
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Use Administrative Options
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Cost Effective
- BAER Purpose:
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Stabilize: soil, sediment and debris
movement, and biotic communities
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Prevent: impairment of ecosystem
structure and function
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Mitigate: significant threats to
health, safety, life, property and downstream values
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Minimize: establishment of
non-native invasive species and unacceptable deterioration of water
quality
- BAER Potential Activities:
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Seeding grass
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Contour felling
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Straw wattles
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Build loose rock check dams
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Noxious weed monitoring
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Road protection
- BAER Survey:
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Map burn severity
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Soil characteristics
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Geological hazards
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Flood source areas
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Sensitive habitat (T & E
Species)
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Noxious Weeds
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Heritage resources
- Natural Features that Limit
Treatment:
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Steep slopes
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High surface rock cover
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Sparse natural vegetation
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Climate
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Geologic instability (landslides)
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Existing high erosion
- Values at Risk:
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Ralston Afterbay Reservoir
- Powerhouses
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PCWA Penstock
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Interbay Dam and Facilities
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PG&E Powerline
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Roads & Trails
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Mosquito Ridge Road (96)
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Blacksmith Flat Road (23)
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Blacksmith Flat Spur Road (23-02)
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Ralston Ridge Road (25)
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Interbay Road (17)
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Little Flat Oak Road (96-10)
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NFMF American River Trail
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Mosquito Ridge Trail
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Cultural & Natural Resources:
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Prehistoric sites
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Historic sites
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CA
Red-legged frog (federal-endangered)
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T & E Plant species
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Vegetative recovery
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Rubicon Wild River
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NFMF American River Roadless Area
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Soil productivity
-
Water quality
- Rick
reviewed maps depicting the severity, perimeter, and slope steepness
of the Ralston burn area gathered during rapid field reconnaissance
conducted on the ground and by helicopter.
- The
maps reflected a mostly moderate to low intensity burn with high
intensity burn areas confined to ridges. 55% of the burn area was
in terrain exhibiting a 60% or greater slope. Burn severity
percentages reflect 3% or 262 acres burned at high intensity, 24% or
2,031 acres experienced a moderate burn, while 6,130 acres or 73%
either escaped the burn or experienced a low severity burn. Rick
reviewed the statistics in greater detail via sub watershed.
- Ralston Fire Hydrologic Design
Factors indicate:
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Estimated
Vegetative Recovery: three years
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Equivalent
Design Recurrence Interval: two years
-
Design
Storm Duration: 24 hours
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Design
Storm Magnitude: 4.7”
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Design
Flow: 36 cfs/sq. mile
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Adjusted Design Flow: 46 cfs/sq.
mile
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Erosion Potential: 1.1 tons/ acre
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Sediment Potential: 435 cu. yards /
sq. mile
- Rick
reviewed pictures of the fire, fire fighting efforts, and post fire
conditions. It was noted that 76% of the burn area drains into
Ralston Afterbay. The fire was mainly a ground fire with a few
exceptions where a crown fire was evident, due to the steep terrain
the fire was mostly fought by air, and has resulted in a high
potential for rock fall on Mosquito Ridge Road
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- Recommended Treatments and
Surveys:
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Daily
patrol and slough removal during rain events and once after each
rain on 11 miles of Mosquito Ridge Road and 8 miles Blacksmith Flat
Road
- Remove
slide debris and rockfall with front end loader and clear roadway
ditches with front end loader
- Clear culvert inlets with
backhoe and haul to disposal.
- Perform
periodic geologist/road management visits to review/adjust
treatment.
-
Noxious Weed Detection Surveys
- Land Treatments:
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Noxious Weed Survey 1st Year: $1,435
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Roads and Trails: $144,300
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Protection/Safety: $10,920
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BAER Assessment: $33,500
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Total BAER request: $190,155
- Rick
closed the presentation by confirming the expectation of a flush of
sediment and ash through the system upon the burn area experiencing
a strong storm event.
- Group
discussion revolved around post burn operations including hazard
removal and noxious weed control, the importance of pre-fire
activities including fuels reduction, and the importance of public
relations in terms of disseminating post fire information to the
public that seems to perceive the Ralston Fire as a high intensity
burn event.
-
- Mal
Toy reported PCWA is reviewing proposals for studies in the burn
area to review the fire’s impacts and identity potential
mitigation activities.
- Bill
Cave promoted the success of citizen led efforts with Auburn Lake
Trails boasting a 97% fire safe compliance level due largely to the
efforts of the Auburn Lake Trails Fire Safe Council.
- Status Updates on Active
Projects:
-
Cosumnes-American-Bear-Yuba
(CABY): Bill Templin reported the CABY Integrated Regional
Water Management Plan (Plan) is now in first daft and available for
review and comment. Project proposals have been submitted for
consideration of inclusion in the Plan’s projects list. The
website for further information is: www.cabyregion.org/
- Protect
the American River Canyons (PARC): Bill introduced Eric Peach
and thanked him for the positive press he received in the latest
PARC newsletter and the posting of the ARWG meeting information. He
acknowledged PARC’s efforts to continuously organize and
conduct citizens based clean up efforts.
- Eric
Peach noted upcoming PARC events and offered Group members a PARC
newsletter and invited them to visit the PARC website:
www.parc-auburn.org/
- PCWA
Middle Fork Project: Mal Toy reported the Technical Working
Group is working on an understanding of what the Terms and
Conditions for Re-Licensing should be. Details may be found at the
website: http://relicensing.pcwa.net/
- Tahoe
National Forest Off Road Vehicle Routes in the American River Ranger
District: A meeting to discuss options will take place of
October 26th in Foresthill.
- South
Fork American River (SFAR) Watershed Update: Austin Mulder,
SFAR Watershed Coordinator gave a status report of a successful
eight year for the Watershed Education Summit event focused on
watershed education and awareness based on scientific monitoring and
data collection efforts using USFS Stream Condition Inventory
protocols.
- Bill
voiced the desire to mirror the WES effort that will focus on the
North Fork American River watershed.
- Sediment
Dynamics Study (SDS): Bill Templin reported the Technical
Advisory Committee will be meeting next month and is moving the
project towards completion.
- Auburn
State Recreation Area (ASRA) General Plan Progress Report: Bill
reported he has made the suggestion that updates on Plan progress be
posted on the ASRA website.
- Others?
Placer County Resource Conservation (RCD) District GIS Technician:
Rich Gresham reviewed the effort being jointly funded by the
USDA Natural Resources Conservation Service and the Placer, Nevada,
and El Dorado County RCDs to hire GIS expertise in order to move
forward with GIS efforts in terms of fire history and fire safety
projects mapping and invasives and invasives control measures
mapping.
- Bill
asked Austin Mulder to share his GIS information at a future
meeting, perhaps December.
- What’s
on your Mind? Stewart Feldman noted a potential opportunity to
contribute to a display kiosk to be located at Oxbow Reservoir in
conjunction with the CA Visitor Welcome Center.
- Next Meeting and Adjournment:
-
The
next meeting is slated for November 16th at the Canyon
View Community Center. The meeting was adjourned at 12:17 p.m.
