coastal san luis obispo county water quality assessment may 15, 2008 tamara presser & matt...
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Coastal San Luis Obispo Coastal San Luis Obispo County Water Quality County Water Quality
AssessmentAssessmentMay 15, 2008May 15, 2008
Tamara Presser & Matt ThompsonTamara Presser & Matt Thompson
Storm Water ProgramStorm Water Program
Central Coast Regional Water Quality Control BoardCentral Coast Regional Water Quality Control Board
22
City of San Luis ObispoCity of San Luis Obispo
Coastal San Luis Obispo Communities:Coastal San Luis Obispo Communities:Morro BayMorro Bay
Pismo BeachPismo Beach
Arroyo GrandeArroyo Grande
Grover BeachGrover Beach
Baywood – Los Osos CSDBaywood – Los Osos CSD
Oceano CSDOceano CSD
33
Enrollment Schedule for City of San Luis ObispoEnrollment Schedule for City of San Luis Obispo
Apr 17Apr 17Feb 27Feb 279 weeks9 weeksPhase V: Water Board ActionPhase V: Water Board Action
Feb 26Feb 26Dec 1Dec 113 weeks13 weeksPhase IV: Water Board Staff Final Review Phase IV: Water Board Staff Final Review and Posting of SWMPand Posting of SWMP
Nov Nov 2828Oct 20Oct 206 weeks6 weeks
Phase III: MS4 SWMP Redraft Phase III: MS4 SWMP Redraft
Oct 17Oct 17May 26May 2621 weeks21 weeksPhase II: MS4 Finalization of Draft SWMP Phase II: MS4 Finalization of Draft SWMP and Water Board Staff and Public SWMP and Water Board Staff and Public SWMP Review Review
May May 2323NowNow5 weeks5 weeksPhase I: Water Board Staff Assessment Phase I: Water Board Staff Assessment
of Water Quality Challengesof Water Quality Challenges
EndEndBeginBeginLength of Length of ProcessProcess
TasksTasks
44
Enrollment Schedule for Coastal San Luis Obispo CountyEnrollment Schedule for Coastal San Luis Obispo County
Feb 6Feb 6Dec 8Dec 89 weeks9 weeksPhase V: Water Board ActionPhase V: Water Board Action
Dec 7Dec 7Sep 8Sep 814 weeks14 weeksPhase IV: Water Board Staff Final Review Phase IV: Water Board Staff Final Review and Posting of SWMPand Posting of SWMP
Sep 5Sep 5Jul 28Jul 286 weeks6 weeksPhase III: MS4 SWMP Redraft Phase III: MS4 SWMP Redraft
Jul 25Jul 25May 26May 269 weeks9 weeksPhase II: MS4 Finalization of Draft SWMP Phase II: MS4 Finalization of Draft SWMP and Water Board Staff and Public SWMP and Water Board Staff and Public SWMP Review Review
May May 2323NowNow5 weeks5 weeksPhase I: Water Board Staff Assessment Phase I: Water Board Staff Assessment
of Water Quality Challengesof Water Quality Challenges
EndEndBeginBeginLength of Length of ProcessProcess
TasksTasks
55
Pollutants of Concern (POCs)Pollutants of Concern (POCs)
““POCs consist of any pollutants that exhibit one or more of POCs consist of any pollutants that exhibit one or more of the following characteristics (Municipal Phase II General the following characteristics (Municipal Phase II General Permit): Permit):
Current loadings or historic deposits of the pollutant are Current loadings or historic deposits of the pollutant are impacting the beneficial uses of a receiving waterimpacting the beneficial uses of a receiving water
Elevated levels of the pollutant are found in sediments of Elevated levels of the pollutant are found in sediments of a receiving water and/or have the potential to a receiving water and/or have the potential to bioaccumulate in organisms thereinbioaccumulate in organisms therein
The detectable inputs of the pollutant are at The detectable inputs of the pollutant are at concentrations or loads considered potentially toxic to concentrations or loads considered potentially toxic to humans and/or flora and fauna."humans and/or flora and fauna."
66
Pollutants of Concern (POCs)Pollutants of Concern (POCs)Pollutants of concern found in urban runoff include Pollutants of concern found in urban runoff include (Municipal Phase II General Stormwater Permit):(Municipal Phase II General Stormwater Permit):
SedimentsSediments Non-sediment solidsNon-sediment solids NutrientsNutrients PathogensPathogens Oxygen-demanding substancesOxygen-demanding substances Petroleum hydrocarbonsPetroleum hydrocarbons Heavy metalsHeavy metals FloatablesFloatables Polycyclic aromatic hydrocarbons (PAHs)Polycyclic aromatic hydrocarbons (PAHs) TrashTrash Pesticides and herbicides Pesticides and herbicides
77
POCs – City of San Luis ObispoPOCs – City of San Luis ObispoAddressed in April 2007 Draft Addressed in April 2007 Draft
Management PlanManagement Plan
PathogensPathogens NutrientsNutrients Priority OrganicsPriority Organics SedimentSediment ChlorineChlorine Oil and GreaseOil and Grease SurfactantsSurfactants TrashTrash
88
POCs – City of San Luis ObispoPOCs – City of San Luis ObispoImpaired WaterbodiesImpaired Waterbodies
NoNo
Yes – Address in Yes – Address in SWMPSWMP
Yes – AYes – Address in ddress in SWMPSWMP
Yes – Address in Yes – Address in SWMPSWMP
EPA EPA Approved Approved
TMDLTMDL
UnknownUnknownNitrate as Nitrate Nitrate as Nitrate (NO3)(NO3)
Prefumo Prefumo CreekCreek
Urban, Human, Urban, Human, Birds and Bats Birds and Bats Roosting in the Roosting in the Tunnel, Tunnel, LivestockLivestock
PathogensPathogens
SLO WWTP, SLO WWTP, AgricultureAgricultureNutrientsNutrients
SLO WWTPSLO WWTPNitrate as Nitrate Nitrate as Nitrate (NO3)(NO3)
San Luis San Luis Obispo Obispo CreekCreek
Potential Potential SourcesSourcesPollutantPollutantWaterbodyWaterbody
99
POCs – City of San Luis ObispoPOCs – City of San Luis ObispoAdditional ConcernsAdditional Concerns
San Luis Obispo San Luis Obispo CreekCreekLow Index of Biotic Low Index of Biotic Integrity (IBI Integrity (IBI measure of measure of biologic health based on biologic health based on the presence and quantity the presence and quantity of various species)of various species)Organochlorine Organochlorine PesticidesPesticidesMetals (Chromium) Metals (Chromium)
Prefumo CreekPrefumo Creek PathogensPathogens
Stenner CreekStenner Creek PathogensPathogens Low Index of Biotic Low Index of Biotic
IntegrityIntegrity
1010
POCs – City of San Luis ObispoPOCs – City of San Luis ObispoAdditional ConcernsAdditional Concerns
FFAACCAACCAAAvila Beach, projection Avila Beach, projection of San Luis Streetof San Luis Street
FFBBBBAADDAAAvila Beach, projection Avila Beach, projection of San Juan Streetof San Juan Street
WetWetDryDryWetWetDryDryWetWetDryDry
2004 - 20052004 - 2005
2005 – 20062005 – 20062006 - 20072006 - 2007Sampling SiteSampling Site
Heal the Ocean: ‘Report Card’Heal the Ocean: ‘Report Card’
1111
Possible Pollutant Sources – City of Possible Pollutant Sources – City of SLOSLO
Homeless encampments near San Luis Homeless encampments near San Luis Obispo CreekObispo Creek
Animals in San Luis Obispo CreekAnimals in San Luis Obispo Creek Old sewer lateralsOld sewer laterals Pet wastePet waste
1212
Future Projects – City of San Luis Future Projects – City of San Luis ObispoObispo
Orcutt Area Specific Orcutt Area Specific Plan – 231-acre Plan – 231-acre developmentdevelopment
Prefumo Creek Prefumo Creek Commons ProjectCommons Project
2007 Bicycle 2007 Bicycle Transportation Plan Transportation Plan UpdateUpdate
South Broad St. South Broad St. Corridor PlanCorridor Plan
Margarita Area Margarita Area Transit-Oriented Transit-Oriented DevelopmentDevelopment
SLO Airport Re-SLO Airport Re-DevelopmentDevelopment
Downtown Mixed-Downtown Mixed-Use ProjectsUse Projects Chinatown ProjectChinatown Project Garden St.Garden St.
1313
DiscussionDiscussion
What other water quality concerns What other water quality concerns can you identify that should be can you identify that should be addressed in San Luis Obispo’s addressed in San Luis Obispo’s SWMP?SWMP?
Identify POCs & SourcesIdentify POCs & Sources
1414
POCs – Morro BayPOCs – Morro Bay Impaired WaterbodiesImpaired Waterbodies
YesYes
Agriculture, Channel Agriculture, Channel Erosion, Channelization, Erosion, Channelization, Construction/Land Construction/Land Development, Resource Development, Resource ExtractionExtraction
Sedimentation/Sedimentation/SiltationSiltation
Morro Bay Morro Bay (including (including Chorro Chorro Creek, Los Creek, Los Osos Creek, Osos Creek, Morro Bay Morro Bay Estuary)Estuary)
YesYes
Natural Sources, Natural Sources, Nonpoint Source, Range Nonpoint Source, Range Grazing-Upland, Grazing-Upland, Septage Disposal, Septage Disposal, Urban Runoff/Storm Urban Runoff/Storm SewersSewers
PathogensPathogens
Morro Bay Morro Bay (including (including Chorro Chorro Creek, Los Creek, Los Osos Creek)Osos Creek)
NoNoUnknownUnknownDissolved OxygenDissolved OxygenMorro BayMorro Bay
Approved Approved TMDLTMDLPotential SourcesPotential SourcesPollutantPollutantWaterbodyWaterbody
1515
POCs – Morro BayPOCs – Morro Bay Additional ConcernsAdditional Concerns
Morro CreekMorro Creek PathogensPathogens
Toro CreekToro Creek PathogensPathogens
Morro BayMorro Bay Organochlorine Organochlorine
PesticidesPesticides Metals (Arsenic,Metals (Arsenic,
Cadmium)Cadmium)
1616
POCs – Morro BayPOCs – Morro Bay Additional ConcernsAdditional Concerns
CCAACCAABBAAMorro Bay City Morro Bay City Beach, Morro Beach, Morro CreekCreek
WetWetDryDryWetWetDryDryWetWetDryDry
2004 - 20052004 - 20052005 – 20062005 – 20062006 - 20072006 - 2007Sampling SiteSampling Site
Heal the Ocean: ‘Report Card’Heal the Ocean: ‘Report Card’
1717
POCs – Morro BayPOCs – Morro Bay Additional ConcernsAdditional Concerns
Morro Bay National Estuary Program:Morro Bay National Estuary Program:‘‘Stormwater Monitoring Report 2007’ – First Flush SamplingStormwater Monitoring Report 2007’ – First Flush Sampling
E. coliE. coli TurbidityTurbidity pHpH Total Dissolved Solids (TDS)Total Dissolved Solids (TDS) OrthophosphatesOrthophosphates Metals (Zinc, Copper, Nickel)Metals (Zinc, Copper, Nickel)
1818
Possible Pollutant Sources – Possible Pollutant Sources – Morro BayMorro Bay
Restaurant dischargesRestaurant discharges Harbor activitiesHarbor activities Boat washingBoat washing Street runoffStreet runoff LandscapingLandscaping Business maintenance and repairs (ie. Power Business maintenance and repairs (ie. Power
washing and painting related discharges)washing and painting related discharges) ConstructionConstruction Homeless encampments Homeless encampments
1919
DiscussionDiscussion
What other water quality concerns What other water quality concerns can you identify that should be can you identify that should be addressed in the Morro Bay addressed in the Morro Bay SWMP?SWMP?
Identify POCs & SourcesIdentify POCs & Sources
2020
POCs – Pismo BeachPOCs – Pismo Beach Impaired WaterbodiesImpaired Waterbodies
NoNoUnknownUnknownIndicatorIndicatorBacteriaBacteria
Pacific Ocean at Pacific Ocean at Pismo BeachPismo Beach
Approved Approved TMDLTMDL
Potential Potential SourcesSourcesPollutantPollutantWaterbodyWaterbody
2121
POCs – Pismo BeachPOCs – Pismo BeachAdditional ConcernsAdditional Concerns
Pismo CreekPismo Creek PathogensPathogens Low Index of Biotic Low Index of Biotic
IntegrityIntegrity
Heal the Ocean: ‘Report Card’Heal the Ocean: ‘Report Card’
FFBBDDAACCCCPismo Beach Pier, Pismo Beach Pier, 50 feet south of pier50 feet south of pier
WetWetDryDryWetWetDryDryWetWetDryDry
2004 - 20052004 - 20052005 – 20062005 – 20062006 - 20072006 - 2007Sampling SiteSampling Site
2222
Possible Pollutant Sources – Pismo Possible Pollutant Sources – Pismo BeachBeach
Birds at Pismo BeachBirds at Pismo Beach Homeless encampmentsHomeless encampments Septic SystemsSeptic Systems ConstructionConstruction Landscape fertilizersLandscape fertilizers Discharge of polluted groundwater to Discharge of polluted groundwater to
storm drainsstorm drains
2323
Future Projects – Pismo BeachFuture Projects – Pismo Beach
Amendment to General Plan Land Use Amendment to General Plan Land Use Element to include expansion Element to include expansion opportunities for residential land useopportunities for residential land use
Mixed-use Developments:Mixed-use Developments: Price St.Price St. Five Cities Dr.Five Cities Dr.
2424
DiscussionDiscussion
What other water quality concerns What other water quality concerns can you identify that should be can you identify that should be addressed in Pismo Beach’s addressed in Pismo Beach’s SWMP?SWMP?
Identify POCs & SourcesIdentify POCs & Sources
2525
POCs – Arroyo GrandePOCs – Arroyo Grande ConcernsConcerns
Arroyo Grande CreekArroyo Grande Creek High Toxicity LevelsHigh Toxicity Levels PathogensPathogens Index of Biotic IntegrityIndex of Biotic Integrity
2626
Possible Pollutant Sources – Possible Pollutant Sources – Arroyo GrandeArroyo Grande
None identified so far.None identified so far.
2727
Future Projects – Arroyo GrandeFuture Projects – Arroyo Grande
Newsom Springs Regional Master Newsom Springs Regional Master Drainage Plan – Stormwater drainage Drainage Plan – Stormwater drainage improvements to reduce city flooding improvements to reduce city flooding (project area: 1,240 acres)(project area: 1,240 acres)
2828
DiscussionDiscussion
What other water quality concerns What other water quality concerns can you identify that should be can you identify that should be addressed in Arroyo Grande’s addressed in Arroyo Grande’s SWMP?SWMP?
Identify POCs & SourcesIdentify POCs & Sources
3030
DiscussionDiscussion
What water quality concerns can What water quality concerns can you identify that should be you identify that should be addressed in Grover’s SWMP?addressed in Grover’s SWMP?
Identify POCs & SourcesIdentify POCs & Sources
3131
POCs – Baywood/Los OsosPOCs – Baywood/Los OsosImpaired WaterbodiesImpaired Waterbodies
YesYes
Agriculture, Channel Agriculture, Channel Erosion, Erosion, Channelization, Channelization, Construction/Land Construction/Land Development, Development, Resource ExtractionResource Extraction
Sedimentation/Sedimentation/SiltationSiltation
Morro Bay Morro Bay (including (including Chorro Chorro Creek, Los Creek, Los Osos Creek, Osos Creek, Morro Bay Morro Bay Estuary)Estuary)
YesYes
Natural Sources, Natural Sources, Nonpoint Source, Nonpoint Source, Range Grazing-Range Grazing-Upland, Septage Upland, Septage Disposal, Urban Disposal, Urban Runoff/Storm SewersRunoff/Storm Sewers
PathogensPathogens
Morro Bay Morro Bay (including (including Chorro Chorro Creek, Los Creek, Los Osos Creek)Osos Creek)
NoNoUnknownUnknownDissolved OxygenDissolved OxygenMorro BayMorro Bay
Approved Approved TMDLTMDL
Potential SourcesPotential SourcesPollutantPollutantWaterbodyWaterbody
3232
POCs – Baywood/Los OsosPOCs – Baywood/Los Osos Additional ConcernsAdditional Concerns
Morro BayMorro Bay Organochlorine PesticidesOrganochlorine Pesticides Metals (Arsenic, Cadmium)Metals (Arsenic, Cadmium)
3333
POCs – Baywood/Los OsosPOCs – Baywood/Los OsosAdditional ConcernsAdditional Concerns
Morro Bay National Estuary Program:Morro Bay National Estuary Program:‘‘Stormwater Monitoring Report 2007’ – First Flush SamplingStormwater Monitoring Report 2007’ – First Flush Sampling
E. coliE. coli TurbidityTurbidity Total Suspended Solids (TSS)Total Suspended Solids (TSS) Total Dissolved Solids (TDS)Total Dissolved Solids (TDS) OrthophosphatesOrthophosphates Dissolved Metals (Zinc, Copper, Nickel)Dissolved Metals (Zinc, Copper, Nickel)
3434
Possible Pollutant Sources – Possible Pollutant Sources – Baywood/Los OsosBaywood/Los Osos
High septic system densityHigh septic system density
3535
DiscussionDiscussion
What other water quality concerns What other water quality concerns can you identify that should be can you identify that should be addressed in the Baywood – Los addressed in the Baywood – Los Osos SWMP?Osos SWMP?
Identify POCs & SourcesIdentify POCs & Sources
3636
ReferencesReferences CCAMP (http://www.ccamp.org/)CCAMP (http://www.ccamp.org/) 2006 303(d) Listings 2006 303(d) Listings
(http://www.waterboards.ca.gov/water_issues/programs/tmdl/(http://www.waterboards.ca.gov/water_issues/programs/tmdl/docs/303dlists2006/epa/state_usepa_combined.pdf)docs/303dlists2006/epa/state_usepa_combined.pdf)
TMDLs TMDLs (http://www.swrcb.ca.gov/centralcoast/TMDL/303dandTMDLpr(http://www.swrcb.ca.gov/centralcoast/TMDL/303dandTMDLprojects.htm)ojects.htm)
Heal the Bay (http://www.healthebay.org/)Heal the Bay (http://www.healthebay.org/) Morro Bay National Estuary Program’s Implementation Morro Bay National Estuary Program’s Implementation
Effectiveness Program Effectiveness Program (http://www.mbnep.org/files/2007%20Stormwater(http://www.mbnep.org/files/2007%20Stormwater%20Monitoring%20Report%20final.pdf)%20Monitoring%20Report%20final.pdf)
County of San Luis Obispo Public WorksCounty of San Luis Obispo Public Works City of San Luis Community DevelopmentCity of San Luis Community Development
3737
Questions?Questions?
Tamara PresserTamara Presser
(805) 549-3334(805) 549-3334
TPresser@waterboards.ca.govTPresser@waterboards.ca.gov
MS4 Enrollment Strategy Website:MS4 Enrollment Strategy Website:
http://www.waterboards.ca.gov/centralcoast/http://www.waterboards.ca.gov/centralcoast/stormwater/municipal/phase_2/stormwater/municipal/phase_2/ms4enrollment/enrollment_strategy_index.htmms4enrollment/enrollment_strategy_index.htm
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