August 28, 2017 Slide 1€¦ · Middle Creek Restoration Project . Slide 24 . 2017 TMDL...
Transcript of August 28, 2017 Slide 1€¦ · Middle Creek Restoration Project . Slide 24 . 2017 TMDL...
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August 28, 2017 Slide 1
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Outline Overview Key features of the Nutrient Control Program Implementation efforts Ideas for changes
Questions identified in overview & other topics of concern
Slide 2
Meeting Purpose: Learn your ideas and concerns. No decisions will be made today.
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Algae Problem in Clear Lake Shallow, warm & eutrophic
→ algae & aquatic plants
Algae more prolific from 1920’s to 1970’s
>85% of natural wetlands lost → dramatically altered nutrient balance → lake = hyper-eutrophic
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Algae Problem in Clear Lake 1986 – CWA Section 303(d) listed for nutrients Looked like things were getting better in 1990’s Turn for the worse in 2009 Algae blooms not
improving an increasing concerns regarding cyanobacteria and cyanotoxins
Slide 4
Photo courtesy of Lake County
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Algae Bloom Impacts Some cyanobacteria produce cyanotoxins
health concern for humans and dogs Blooms can decrease dissolved oxygen
fish kills Noxious odors
Slide 5
Photo courtesy of Lake County
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Total Maximum Daily Load (TMDL) adopted in June 2006 Source analysis
Load allocations
Implementation plan
Time schedule
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Clear Lake Nutrient TMDL (adopted 2006)
Model predicted 40% reduction in average phosphorus loading would reduce the incidence of algae blooms
40% reduction = an annual allowable loading of approximately 87,100 kg
Slide 7
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Clear Lake Nutrient TMDL
Allocations for point source discharges: Lake County Storm Water Permittees - 2,000 kg P/yr California Department of Transportation – 100 kg P/yr
Allocation for nonpoint source is 85,000 kg P/yr U.S. Bureau of Land Management U.S. Forest Service Lake County Irrigated agriculture
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TMDL Implementation Plan Management practices to reduce P and
erosion/sediment transport
As required by the Control Program, responsible parties submitted a plan in 2008 Strategy to collect more information Update on current and potential
implementation efforts Slide 9
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Clear Lake Nutrient TMDL 2012: Central Valley Water Board considered
whether phosphorus load allocations should continue or is another control strategy or approach more appropriate, based on any new information
2017: Compliance by 19 June 2017
Slide 10
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2012 Central Valley Water Board Review & Direction
Reviewed status based on information submitted by stakeholders and staff ’s 2012 update report
TMDL compliance date may be unrealistic because Middle Creek Restoration Project behind schedule
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Middle Creek Flood Damage Reduction and Ecosystem Restoration
Project
Could reduce phosphorus loading to Upper Arm of Clear Lake by ~28%
Upper Arm is source of much of algae in Lower and Oaks Arms
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2012 Central Valley Water Board Review & Direction
Reviewed status based on information submitted by stakeholders and staff ’s 2012 update report
TMDL compliance date may be unrealistic because Middle Creek Restoration Project behind schedule
Board direction: Nutrient control program should implement phosphorus allocations
Science shows reducing phosphorus reduces algae More studies needed to evaluate other factors
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Outline
Overview Key features of the Clear Lake Nutrient
TMDL Control Program Implementation efforts Ideas for amendments
Discussion of questions identified in overview & other topics of concern
Slide 14
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2006-2012 Implementation Activities
Slide 15
Activities since 2012 Update
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Activities since 2012 Update: New Water Board Permitting Efforts
2012 Statewide Onsite Wastewater Treatment Systems Policy (Septic Policy)
2013 Statewide General Permit for Small Municipal Storm Water System Discharges
2015 Central Valley Permit for Discharges from Medicinal Cannabis Cultivation Activities
Upcoming Permitting Efforts Small Municipal Storm Water General Permit amendment
for more detailed TMDL implementation requirements State Water Board policy & permit for cannabis cultivation Nonpoint source activities on federal lands
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Statewide Onsite Wastewater Treatment Systems (Septic Tanks) Policy Purpose: Allow continued use of septic tanks while protecting water quality and public health
Adopted in June 2012 → effective May 2013
Provides requirements for septic tanks: Upgrades Replacements New systems
Lake County is developing a Local Agency Management Program
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Statewide Permit for Small Municipal Storm Water Systems February 2013 – General Permit adopted
Did not include detailed TMDL provisions Permit will be amended to include TMDL
implementation requirements Comment period on proposed amendments closed
August 21
State Water Board hearing for consideration → December 2017
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Central Valley Permit for Medicinal Cannabis Cultivation Activities Permit adopted in 2015 – addresses water quality
impacts from cannabis cultivation and associated activities on private property
The permit allows Water Board and Fish and Wildlife staff reasonable access to the cultivation operations for inspections to determine compliance
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Draft 2017 State Water Board Cannabis Cultivation Policy and Draft Permit Develop standards and a permitting system to
protect flow and water quality
Does not apply to personal cultivation for recreational use
Comment period ends September 6
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Central Valley Permit for Nonpoint Source Activities on Federal Lands Develop permit to ensure regulatory compliance and
water quality protection on USFS and BLM lands Timber harvesting and vegetative management Motorized and non-motorized recreation Range management Culvert replacements and upgrades Fire suppression and repair Road building, reconstruction, and abandonment
Stakeholder meetings in 2017 Board hearing for consideration → 2019
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Irrigated Lands Regulatory Program New permit adopted 2014
Water Board Staff actively conduct inspections Farm evaluation reports Nitrogen management plans Irrigation supply wellheads Fertilizer and pesticide storage areas Best management practice effectiveness and
appropriateness
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2017 Technical Report on TMDL Implementation Status
(under development)
Summary of implementation actions (completed, underway, planned) 13267 Orders sent in 2016 and all responsible
parties submitted responses See handout for preliminary compilation
summary
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Examples of Implementation Actions Erosion Control
Lake County grading ordinance (clearing and snagging)
Native surface road improvements Irrigation improvements Filter strips Construction Best Management Practices
Wetland Creation & Habitat Restoration Middle Creek Restoration Project
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2017 TMDL Implementation Update
Slide 25
Critical question:
1. Are we missing any erosion control projects or nutrient reduction efforts?
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Potential for New Information Gathering
Cyanobacteria Harmful Algal Blooms study by State Water Board contract
Clear Lake Blue Ribbon Task Force
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State Water Board Efforts to Assess Cyanobacteria and Harmful Algae Blooms (HABs)
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State Water Board Efforts to Assess Cyanobacteria and Harmful Algae Blooms (HABs)
Slide 28
New contract to develop research
strategy
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AB 707: Blue Ribbon Committee for the Rehabilitation of Clear Lake Goal: Improve the environmental quality of the lake, as
first step in helping local economy by promoting tourism and job creation
Meet quarterly
Provide an annual report on activities to the Governor and appropriate committees beginning January 1, 2019 Identify barriers and contributing factors to poor water
quality, strategies to improve water, threats to wildlife Provide recommendations, cost estimates, multi-agency
coordination plan to secure funding Slide 29
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2017 TMDL Implementation Update
Slide 30
Critical question:
2. Do you know of any other study efforts underway?
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2017 TMDL Implementation Status
Preliminary Water Board staff findings:
Some allocations met
Not enough information to determine compliance for all load reduction requirements
Nonpoint source allocation likely not met Primarily because Middle Creek Restoration
Project is delayed
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Considering Compliance Date Extension, Alternatives & Milestones
Critical questions:
3. Are there any feasible alternatives to revising the compliance date?
4. Can the TMDL load and waste load allocations be met in 10 years? 20 years? Other timeframe?
5. Specific milestones to track progress?
Slide 32
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Considering Compliance Date Extension, Alternatives & Milestones
Slide 33
Critical questions:
6. What new types of implementation actions might be feasible during a time extension to further reduce nutrient inputs to Clear Lake?
7. What new types of actions might be possible with any feasible alternatives to extending the compliance date?
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Examples of Implementation Actions Considered in 2006 Under Implementation
Erosion Control Lake County grading ordinance
(clearing and snagging) Native surface road improvements Irrigation improvements Filter strips Construction best management practices Critical area planting Streambank & shoreline protection Lined waterways and outlets
Wetland Creation & Habitat Restoration Middle Creek Restoration Project
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Considering Compliance Date Extension, Alternatives & Milestones
Slide 35
Critical questions:
8. Are there any potential environmental impacts that could happen from any new projects conducted as a result of a compliance date extension or other alternative?
9. How might those impacts be avoided or mitigated?
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Considering Compliance Date Extension, Alternatives & Milestones
Slide 36
Critical questions:
10. Is there other information the Board should consider?
11. Are there any other questions we should be asking?
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Next steps Public comments for today’s meeting: September 15
TMDL Implementation Status Report Public review: winter 2017
Draft staff report with alternatives evaluation for potential control program revisions: Public review: later in 2018
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Electronic mailing list and contact information
To receive notifications and updates, subscribe to the Clear Lake Nutrient TMDL electronic mailing list: http://www.waterboards.ca.gov/resources/email_subscriptions/reg5_subscribe.shtml
Contacts: Michelle Wood, Senior Environmental Scientist
Taran Sahota, Environmental Scientist [email protected]
Holly Grover, Environmental Scientist [email protected]
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Questions to Consider
Slide 40
1. Do you know of any ongoing or planned erosion control projects or nutrient reduction efforts not already identified on the handout?
2. Do you know of any study efforts underway?
3. Are there any feasible alternatives to revising the compliance date?
4. Can the TMDL load allocations be met in 10 years? 20 years? Other timeframe?
5. Can you suggest specific milestones to track progress?
6. What new types of implementation actions might be feasible during a time extension to further reduce nutrient inputs to Clear Lake?
7. If an alternative to extending the compliance date is possible, what new types of actions might be feasible?
8. Are there any potential environmental impacts that could happen from any new projects conducted as a result of a compliance date extension or other alternative? How might those impacts be mitigated?
9. Is there other information the Board should consider?
10. Do you have any additional questions or ideas?
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Slide 41