santa rosa creek watershed managemtne plan: summary of voluntary recommendations
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Santa
Rosa
CreekWatershedManagementPlan
SummaryofWatershedConditionsand
VoluntaryRecommendations
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PublicMeeting#1ProjectTeam
Greenspace theCambriaLandtrust (RickHawley)GrantRecipient
CaliforniaDepartmentofFishandGame(MargaretPaul)Funder
CentralCoastSalmonEnhancement(Stephnie Wald)SubcontractFacilitator
StillwaterSciences(Zooey Diggory)SubcontractScientistsandPlanWriter
Stakeholderslandownersandresidentsworkingandlivinginthewatershed
TechnicalAdvisoryCommitteeagencyrepresentativesandprofessionalshaving
knowledgeofthewatershed
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PublicMeeting#1Objectives
FINDOUTWHATSOUTTHERE(Compileexistinginformationonwaterquality,hydrology,geomorphology,vegetation,wildlife,landusetocharacterizecurrentand
historicalconditions
of
the
watershed
to
provide
baseline,
context,
and
guidance
for
decisionmaking)
FINDOUTWHATYOUTHINK(Solicitcommunityinput)
FINDOUT
WHATS
LIMITING
STEELHEAD
TROUT
POPULATION
(Evaluateand
prioritizetheprimaryfactorslimitingthesuccessofthesteelheadpopulation)
RECOMMENDPROJECTSTOIMPROVESRCWATERSHEDFORSTEELHEADTROUT
(Recommend
and
prioritize
projects
to
address
limiting
factors
to
improve
overall
ecologicalhealthandecosystemservicesofthecreek)
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PublicMeeting#1WhatDoYouWanttheCreektoBeLikeandDoQuestionnaire
ForResultsPleaseSeeHandoutProvided
PublicMeeting#2SummaryofWatershedConditionsandVoluntaryRecommendations
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StatusofTimeline
JulydraftplantoTAC
Latesummerdraftplantostakeholders
Latesummerpublicmeeting#2
September1stTACcommentdeadline
September15thSteeringCommitteedeadline
Early
November
distribute
draft
to
interested
publicEarlyDecemberpubliccommentperiodcloses;publicmeeting#3
SectionsofPlanIntroduction
SynthesisofWatershedConditions
SteelheadLimitingFactorsAnalysis
Recommendations
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SubwatershedAreaA Stream lengthB
km2 mi2 km mi
Santa Rosa Creek 63.6 24.6 25.4 15.8
3.8 2.4 3.8 2.4
Curti Creek 5.5 2.1 3.5 2.2
Lehman Creek 6.5 2.5 4.1 2.6 East Fork Santa Rosa Creek 4.9 1.9 4.7 2.9
North Fork Santa Rosa Creek 5.6 2.2 4.2 2.6
Mora Creek 6.8 2.6 4.8 3.0
59.3 22.9 15.6 9.7
Fiscalini Creek 6.7 2.6 2.3 1.4
Green Valley Creek 31.5 12.2 12.8 7.9
Total Santa Rosa Creek
Watershed123 47.5 25.4 15.8
Overview
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Santa Clara River Parkwa Flood lain Restoration Feasibilit Stud Geomor hic Processes
1863-1864:Drought kills off
beef cattle; shift
to dairy cattle
6,232WATERSH
EDIMPACTSCHRONOLO
GY
Ranching /
Logging
Road
Building
Mining
Channel
Modification
& Damaging
Floods
Population
(Cambria)
1769:
~300
Native
Americans
5,382 6,624
1939:
Hwy 1 and Santa
Rosa Creek Road
improved
1880(mining
areas
~2,000)
1874:
Oceanic Minebegins production
1964:
Highway 1 bypass
constructed around
downtown Cambria
1866:Cambria
est.
Late 1700s:early coast trail
est. along lower
Perry Creek
1916:
WWI
1859:
American
settlement
1840:
Rancho
SantaRosa
1875:300
1890:
7001900
(San Simeon
Township: 1,036)
1950:
7881960:1,260
1965:2,010
1990 2000 2009
0
10
20
30
40
50
60
1870 1880 1890 1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000
Water Year
Precipitation
(in.)
Dry Years
Wet Years
Filling
of gullies
in Cambria
Walker Ditch (LowerPerry Creek) built to
drain Estrada Laguna
1914:
Flood
1956:
Flood
1969:
Flood
(95 m3
s-1
atMammoth Rock)
1995:Flood
(337 m3
s-1
in Cambria)
1850:
Coast wagon
road built
1868:
Cienaga Trail
est. along
Green Valley
1876:Coast Road
re-routed away
from lower Perry Creek
1859:
Santa RosaCreek trail
est.
1974:Highway 46
constructed through
Green Valley
1862:Mercury
discoveredin region
1810:
Rancho SantaRosa est.;
cattle ranching
1779:Mission San
Miguel est.,
logging and
ranching begins
1889:Fire destroys
Cambria
(lumber demand increase)
1916:
Logging productiondeclines following removal
of old growth timber
1960s:
Unauthorized
logging in upper
watershed
1979:
San Simeon Well
Field est.
5201967:
CCSD formed
??125 2
18
1972:63,370
1978:
~9,000
1993:
12,595
2001:65,400
?? ?? ?? ?? ??
2003:San Simeon
M6.5 quake
damages roads
1960s:Shift from
dairy cattle
back to beef
cattle
Pre-European
Colonization
European Arrival:
ResourceDevelopment1760 1860 1950
Ranching, Logging, and Mining Urbanization
(SLO Cal Poly Rain Gauge)
Steelhead
Population(Santa Rosa Creek)
GroundwaterExtractionSanta Rosa Basin(acre-feet)
??
* Reported values** un-quantified values; represents reported occurrence
and relative proportions
See text for information sources
Groundwater extraction,
Population, Steelhead population *
Ranching **
Logging **
Event occurrence
Mining **
Unknown value
No data for rainfall records
2010
1971:
Last sawmill
closes in area
3,061
1980
1880 1995Quiescent PeriodPop. Slow Down
RapidGrowt h Populati on Growt h
ndndndnd
nd
HistoricalWatershedConditionsandWatershedImpacts
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IllustrationofRanchoSantaRosa
byDonJulien Estradaaspartofhis
1841land
grant
application.
Source:Coffman1995.
coordinatedeffortsbylandownerstoclear
valleybottomforestsalongmajorriversand
episodicstormevents
(1)greater
volumes
of
hillslope runoff
generatedperunitrainfall,withfargreater
volumesoffinesedimentproductionthroughout
thewatershedandincreasedgullying and
shallowlandslidepotentialonthesteeper
hillslopes;and
(2)
incision
of
the
mainstem
streamchannelsduetodecreasedstreambank
stabilityandincreasedstreampowerallowing
highflowstoentrenchthechannel.
Priorto
incision,
the
Santa
Rosa,
Perry,
and
GreenValleycreekchannelswouldhave
supportedhighergroundwaterelevationsand
morefrequentinundationunderlowerflows,
whichsupportedthevalleyforests.
HistoricalWatershedConditionsandWatershedImpacts
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GeologyandTectonics
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Climate
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LandUses
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Type of Development
Adelaida Planning Areaa Rural Planning Areaa
2003 2004 2005 2006 2007 2008 Total 2003 2004 2005 2006 2007 2008 Total
Winery facility 1 10 2 4 9 10 36 0 0 0 0 0 0 0
Misc. commercial 0 2 0 0 1 2 5 0 0 0 1 0 0 1
Commercial/ industrial
addition/alteration2 4 1 7 3 2 19 2 2 0 0 0 2 6
Farm support quarters 0 1 0 0 0 0 1 0 0 0 1 0 0 1
New single family
dwelling3 19 12 12 24 15 85 0 3 5 4 1 3 16
Guesthouse 1 2 3 1 4 2 13 0 0 0 2 0 0 2
Secondary dwelling 0 0 1 1 0 1 3 0 0 0 0 0 0 0
Mobile home 2 6 9 8 1 11 37 1 0 0 1 1 1 4
Swimming pool/spa;
resident. & comm.3 5 5 7 7 8 35 0 0 0 0 0 1 1
Radio/cell tower 0 0 2 1 2 1 6 0 1 1 0 0 0 2
Wind/solar system 0 5 4 14 11 18 52 0 1 1 0 1 3 6
CompleteddevelopmentprojectsintheAdelaidaandRuralNorthCoastPlanningAreas
ofSanLuisObispoCountybetween2003and2008
LandUses
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WaterresourcesintheSantaRosaCreekwatershed. Perennialandintermittent
streams,groundwaterbasin,andstreamgaugelocationsareshown.
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0
500
1,000
1,500
2,000
2,500
3,000
3,500
4,000
4,500
5,000
1958
1960
1962
1964
1966
1968
1970
1972
1974
1976
1978
1980
1982
1984
1986
1988
1990
1992
1994
Water Year
Instanteouspeakdischarge(cfs)
USGS 11142200 data
from correlation with USGS 11147070 data
0
2,000
4,000
6,000
8,000
10,000
12,000
14,000
16,000
18,000
19
62
19
64
19
66
19
68
19
70
19
72
19
74
19
76
19
78
19
80
19
82
19
84
19
86
19
88
19
90
19
92
19
94
Water Year
Instanteouspe
akdischarge(cfs)
SLO STN 16 data
from correlation with USGS 11147070 data
Annualmaximumdischargefor
SantaRosa
Creek
at
Cambria
based
onUSGSgauge11142200(top)and
SLOCountyStation16atHighway1
WaterResources
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0
5
10
15
20
25
30
35
40
October
Novem
ber
Decem
ber
January
Fe
bruary
Marc
h
Apri
l
May
June
Ju
ly
August
Septem
ber
Months (WY 1957-1994)
Monthlymeandischarge(cfs)
0
10
20
30
40
50
60
70
80
90
Octobe
r
Novembe
r
Decembe
r
Janu
ary
Febr
uary
March
April
May
June Ju
ly
Augu
st
Sep
tembe
r
Months (WY 1976-1992)
Monthlymeandischarge(cfs)
Monthly
mean
discharge
for
Santa
RosaCreekatCambria,basedonUSGS
gauge11142200(fromcorrelation
withUSGSgauge11147070toextend
periodbeyondWY1972through
1994)
(top)
and
SLO
County
Station
16
(bottom)
WaterResources
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0
100
200
300
400
500
600
1956
1958
1960
1962
1964
1966
1968
1970
1972
1974
1976
1978
1980
1982
1984
1986
1988
1990
1992
1994
1996
1998
2000
2002
2004
2006
2008
Year
Gro
undwaterExtraction(acre-feet)
1979 - San Simeon Well
Field established
1967 - CCSD formed
GroundwaterextractionamountsformunicipalusesinCambria.Data
from19561988providedbyYatesandVanKonyenburg (1998)and
datafrom1989presentprovidedbyCCSD(2009).
WaterResources
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Beneficial UseEstuary Creek
Municipal and Domestic Supply (MUN) X
Agricultural Supply (AGR) X
Industrial Service Supply (IND) X
Ground Water Recharge (GWR) X X
Freshwater Replenishment (FRSH) X
Water Contact Recreation (REC-1) X X
Non-Contact Water Recreation (REC-2) X X
Commercial and Sport Fishing (COMM) X X
Warm Fresh Water Habitat (WARM) X
Cold Fresh Water Habitat (COLD) X X
Estuarine Habitat (EST) X
Wildlife Habitat (WILD) X X
Preservation of Biological Habitats of Special Significance (BIOL) X
Rare, Threatened, or Endangered Species (RARE) X X
Migration of Aquatic Organisms (MIGR) X X
Spawning, Reproduction, and/or Early Development (SPWN) X X
Shellfish Harvesting (SHELL) X
BeneficialusesofSantaRosaCreekwatershedsurfacewaters
WaterQuality
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TemperatureSantaRosaCreek isbeingconsideredforplacementontheClean WaterAct303dlistof
impairedwaterbodiesfortemperature.
(RWQCB2010 ).
Reference
=Draft
California
2010
Integrated
Report
(303(d)List/305(b)Report),CentralCoastRWQCBonlinereport
http://www.waterboards.ca.gov/water_issues/programs/tmdl/2010state_ir_reports/0095
9.shtml#11376
WaterQuality
Life Stage Temperature (degrees F)
Adult migration 46-52
Spawning 39-52
Incubation and emergence 48-52
Fry and juvenile rearing 45-60
Smoltification Less than 57
Steelhead
Optimal
Water
Temperatures
Nelson (2009) and Alley (2008) describe exceedance of optimal
water temperatures.
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WaterQuality
DissolvedOxygen
D.W.
Alley
&
Associates
(2008)
recorded
DO
levels
in
the
lagoon
from1992
to
2005
DOlevelsrarelymetthe5mg/lcriterionorthe2mg/llethallimit forsteelhead
Concludedthat
areduction
in
tidal
overwash could
help
to
reduce
the
low
DO
salinelayeratthebottomofthelagoonandanincreaseinlagoondepthfrom
increasedstreaminflowandincreasedshadingcouldhelptopreventfilamentous
algaegrowth
WhileDOlevelsfrequentlyfailedtomeetguidelinesandlikelyrestrictedthe
activityofsteelheadinthelagoon,theywerelikelylesslimitingthan
temperaturetosteelheadsurvivalinthelagoonsincesteelheadcouldavoidthe
lowDOzonesinthesalinelayeratthebottomofthelagoon
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WaterQuality
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Location DateSediment THg
(mg/kg)
RB-SR-D1a Santa Rosa Creek upstream of Curti Creek 2/12/1992 0.192
RB-SR-C1a Curti Ceek above Oceanic Mine tributary 2/12/1992 0.511
RB-SR-A1a Tributary north of Oceanic Mine 2/12/1992 0.601
RB-SR-A2a Tributary at Oceanic Mine 2/12/1992 1.095/1.75 d
RB-FD-16a
Tributary in vicinity of Oceanic Mine 5/19/1986 3e
RB-SR-Ba Tributary south of Oceanic Mine 2/12/1992 6.79
RB-SR-C2a Tributary at Oceanic Mine just above Curti Creek 2/12/1992 5.01
RB-SR-C3a Curti Ceek just below Oceanic Mine tributary 2/12/1992 1.104
RB-SR-D2a Lower Curti Creek 2/12/1992 1.194/8.48 d
RB-SR-D3a Santa Rosa Creek downstream of Curti Creek 2/12/1992 0.161
HSC-1bSanta Rosa Creek 20 ft upstream of Main Street
Bridge7/15/2009 0.12
HSC-2bSanta Rosa Creek at Creekside Reserve at Center
Street7/15/2009 0.16
HSC-3bSanta Rosa Ck Lagoon, 350 feet upstream of bench
at Shammel Park10/12/2009 0.18
HSC-4b Santa Rosa Ck Lagoon, at Shamel Park bench 10/12/2009 0.54
SWAMP-1c Mouth of Santa Rosa Ck 3/1/1998 0.38
SedimentmercurylevelsinSantaRosaCreekwatershed
a Source:Schwartzbart 1993b Source:L.HarkinsandSierraClub,unpublisheddata,2009c Source:SWAMP1998dTwomeasurementsweretakenatthissamplepointe Anotherlabmeasured41mg/kgatthispoint
WaterQuality
0.08mg/kg=estimatedpre
miningmercurylevelsinCalifornia
streamsediments
0.1mg/kg=reservoirsedimentsin
ahighly
mercury
mining
impacted
sectionofGuadalupeRiver
0.12mg/kg=thresholdeffects
level
0.69mg/kg=Probableeffects
level
20mg/kg=hazardouswastelimit
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WaterQuality
BenthicMacroinvertebrates (BMI)
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WaterQualityBenthic
Macroinvertebrates
(BMI)
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WaterQualityBenthic
Macroinvertebrates
(BMI)
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Location
Sediment Sources
Landslides
Gullies and rills
High yielding Geomorphic Landscape
Units
Creek incision
Bank erosion of high bluffs following
incision
Road-related erosion
Sediment Storage
Lower Perry Creek in the vicinity of the
former Estrada lagoon
Water storage pondsChannel bed in upper reaches
Channel bed in lower reaches
Transfer Dynamics a
Upper reaches
Middle reaches
Lower reaches
SedimentsourceandtransferareasintheSantaRosaCreek
Watershed
SeePages97100inGeomorphologyTechReportfordetail
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Potentialfish
passage
barriers
in
the
Santa
Rosa
Creek
watershed
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Vegetation/landcovertypeswithintheSantaRosaCreekwatershed
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Landcover/Vegetation Type
Area (sq meters) % of watershed area b
Grassland/Herbaceous2,584,020 63.4%
Scrub/Shrub443,850 10.6%
Mixed395,190 9.5%
Developed
Open Space264,780 6.4%
Low Intensity55,980 1.3%
Medium Intensity16,740 0.4%
High Intensity450 0.01%
263,520 6.4%
Cultivated Crops48,840 1.2%
Woody Wetlands
21,120 0.5%
Pasture/Hay4,530 0.1%
Emergent Herbaceous Wetland570 0.01%
AreaofvegetationtypesintheSantaRosaCreekwatershed.a
A Source:NationalLandcover Dataset(2001)B ProportionoflandcovercategorywithinthetotalwatershedareadeterminedinGIS.
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arundo/giantreed(Arundo donax)
pampasgrass(Cortaderia selloana and/orC.jubata)jimson
weed
(Datura stramonium)
capeivy(Delairea odorata)
eucalyptus(Eucalyptus sp.)
Frenchbroom(Genista monspessulana)
Englishivy(Hedera helix)
walnut(Juglans sp.)
castorbean(Ricinus communis)
redwood(Sequoiasempervirens)nasturtium(Tropaeolum sp.)
periwinkle(Vinca major)
palm(various)
Thegreatestdiversityofnonnativeinvasiveplantsintheripariancorridorwasfoundto
occurinthelowersixmilesoftheriver,andatrivermiletwo specifically(Nelsonetal.
2009).
Non-native invasive plant species
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Wildlife
SummariesTheLandConservancySRCWatershedConservationPlan
CambriaForestManagementPlan,
FiscaliniRanchPreservefinalMasterEIR
SpecialstatusWildlifeSpeciesThreatenedorendangeredundereitherthefederalorstateEndangeredSpeciesActs,or
asaspeciesofspecialconcern(SC)byCDFGwiththepotentialtooccurinthe
watershed
Observedinthewatershed(Rathbun etal.1991,Nelsonetal.2009;D.W.Alley
&Associates2008;MorroGroup2009):southernPacificpondturtle(Actinemys marmorata pallida;SC)
monarchbutterfly(Danaus plexippus;SC)
tidewatergoby
(Eucyclogobius newberryi;
federally
endangered
and
SC)
Montereyduskyfooted(SantaLucia)woodrat (Neotoma macrotis luciana;SC)
steelhead south/centralCaliforniacoastDPS(Oncorhynchus mykiss irideus;federally
threatenedandSC)
Californiaredleggedfrog(Rana auroradraytonii;federallythreatenedandSC)Americanbadger(Taxidea taxus;SC)
twostriped
gartersnake (Thamnophis hammondii;
SC)
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Critical
IssuesWaterResources
WaterQuality
FineSediment
InchannelInfrastructure
NonnativeInvasiveSpecies
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SynopsisofRecommendationsVoluntaryactionsthatcouldbedonebyavarietyofentities;notprescriptionsasmuchastheyareagroupofideasthat
COULD
be
undertaken
voluntarily
by
landowners
and
others
RemoveBarrierstoFishPassagemodifyFerrasci Roadcrossing
removeorupgradeundersizedculvertsattributaries
Increase
flows
through
the
middle
reaches
of
Santa
Rosa
CreekassessthestatusofpotentialfishpassagebarriersinthePerry/Green ValleyCreeksub
watershed
IncreaseSummerandFallInstream Flows
develop
an
updated
water
budget
implementwaterconservationstrategies
constructoffstreamwaterstorage
identifycriticalsteelheadinstream flowrequirements
Restore
the
Riparian
Corridor
Managecattleusingarangeofmethodsincludinggrazingmanagementintheripariancorridor
Plantnativeriparianspecies
Minimizetheneedforbankprotection
Usealternativestoriprapwherebankprotectionisnecessary
Control
non
native
invasive
species
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RemediateSourcesofFineSedimentreduceand/orretainfinesedimentdeliveryfromthePerry/GreenValley Creeksub
watershed
treathillslope finesedimentsources
EnhanceLargeWoodyDebrisinventoryLWD
outreachtolandowners
implementLWDenhancementprojects
IncreaseUnderstandingofSteelheadPopulationDynamicssamplesteelheadinspringandfall
monitorescapement
assesssteelheadsmolt growthinandoutsidethelagoon
ReduceMercurySupplyerosioncontrolandbioremediationattheOceanicMinesite
assessmercuryuptakeintheaquaticfoodchain
IncreaseCommunityCapacityforWatershedManagement
continue
to
Support
Watershed
Groups
SynopsisofRecommendations
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PublicInputonRecommendations
WhatICan
Live
With What
ICan
NOT
Live
With
WhatsMissing?
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Thankyouforattending!!
Thispresentation
is
available
at:
http://www.greenspacecambria.org/home_menu.htm
Fundingforthis
projectwas
providedby: