Lake County Presentation printable version MPresources.ca.gov/CNRALegacyFiles/wp-content/...Title:...
Transcript of Lake County Presentation printable version MPresources.ca.gov/CNRALegacyFiles/wp-content/...Title:...
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Lake County Clean Water Program
Water Quality Activities TMDL
LAKE COUNTY WATER RESOURCES DEPARTMENTLAKE COUNTY WATERSHED PROTECTION DISTRICT
BLUE RIBBON TECHNICAL SUBCOMMITTEEAPRIL 19, 2019
RUNNING CREEK CASINO, UPPER LAKE, CA
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Acknowledgments and Thanks
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Outline • Introduction to Clean Water Program • Water Quality Activities in Lake County
• Current & Future • Data
• TMDL Activities– Lake County Perspective• Data • Current & Future
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Clean Water ProgramStorm Water Management
April 2019
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Clean Water Program
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Clean Water Program
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Clean Water Program – Agreement & Map
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CWP - Next Steps • Agreement Approved & Sent to State – County, Lakeport, Clearlake• Introduce and establish Official Management Council - April 25th
• Members, By-Laws, Work Groups, & Schedule • Legally move forward to complete storm water tasks • Coordinate with other departments and agencies
• CDD• Environmental Health • Public Works • CASQA • Water Boards • Tribes • Farm Bureau
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Table #: Clean Water Program Proposed Time Schedule with special consideration for TMDL-Related Activities PROPOSED CHANGES IN RED
TASK # & DESCRIPTION
2019 2020 2021 2022 2023 2024 2025
J-F-M A-M-J J-A-S O-N-D J-F-M A-M-J J-A-S O-N-D J-F-M A-M-J J-A-S O-N-D J-F-M A-M-J J-A-S O-N-D
CWP Joint Power Submission Request Letter x
CWP Joint Power Agreement Approval x
CWP JPA Agreement Submission RWQCB x
CWP Bylaws Finalized xDesign and Form Workgroups x
Meeting Schedule for Workgroups PEOP & PP x
IDDE & Trash Provision xCon /Pcon/LID
MUNITMDL & EAIP x
Fundraising / Financial xReporting SMARTS x x x x
Update Website - LC x x x xUpdate Website – Lakeport xUpdate Website – Clearlake
BOS / City / Public Presentations x x x x xUpdate Website x x x x x x x x x x x x x x x x
Update Storm Water Man. Plan (LC-SWMP) x x x x
TMDL Tasks (This section needs to be updated based on feedback from TSO and July 1st due date for Monitoring plan and associated QAPPs) Submit Time Schedule Order x
Develop BMP Monitoring Plan xConduct Storm WQ Monitoring x x x x x x x
Analyze Storm WQ Results x x x x xIdentify priority locations for BMP x x x xDevelop plan for BMP placement x x x
Coordinate w/ Dept. for BMPsDevelop TMDL section for LCSWMP x x x x
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Water Quality Activities
April 2019
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Water Quality Activities – Current • Post-Fire Stream Storm Monitoring
• Post-Fire Factsheet (hard copies) • QAPP / CEDEN in progress…
• Lake Monitoring w/ DWR • Chl A – TMDL target • Sediment Cores from top 10cm
• N & P, Al-P, Fe-P • Currently being analyzed by UC Davis – Dr. Steve Sadro’s Lab
• Aquatic Plant Treatments & Data • Shoreline development & construction activity • Q/Z Mussel Monitoring – some WQ CDFW
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y = -0.0087x + 650.58R² = 0.0002
0.00
100.00
200.00300.00
400.00
500.00
600.00
700.00
800.00
900.00
1000.00
Jun-14 Dec-14 Jul-15 Jan-16 Aug-16 Mar-17 Sep-17 Apr-18 Oct-18 May-19
TSS
(mg/
L)
Reference - Kelsey Creek TSS (Lake County WRD 2014-2019)
y = 0.1397x - 5441.4R² = 0.0135
0.00
500.00
1000.00
1500.00
2000.00
2500.00
Jun-14 Dec-14 Jul-15 Jan-16 Aug-16 Mar-17 Sep-17 Apr-18 Oct-18 May-19
TSS
(mg/
L)
Middle Creek TSS (Lake County WRD 2014-2019)
y = 0.028x - 785.11R² = 0.0011
0.00
200.00
400.00
600.00
800.00
1000.00
1200.00
1400.00
Jun-14 Dec-14 Jul-15 Jan-16 Aug-16 Mar-17 Sep-17 Apr-18 Oct-18 May-19
TSS
(mg/
L)
Sample Date
Scotts Creek TSS (Lake County WRD 2014-2019)
Pre/ Post-Fire – Stream TSS
Trends
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Pre-Fire Lake TSS Trends
y = 0.0013x - 48.317R² = 0.1647
0
5
10
15
20
25
30
TSS
(mg/
L)
Lake- Upper Arm Total Suspended Solids (CDWR 2005 - 2018)
y = 0.0118x - 299.79R² = 0.4253
100
120
140
160
180
200
220
240
260
TSS
(mg/
L)
Lake- Oaks Arm TSS (CDWR 2000-2018)
y = 0.0109x - 259.68R² = 0.4113
100
120
140
160
180
200
220
240
260
Jan-04 Oct-06 Jul-09 Apr-12 Dec-14 Sep-17 Jun-20
TSS
(mg/
L)
Sample Date
Lake- Lower Arm TSS (CDWR 2000-2018)
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Sediment Cores – Total P (DWR & UCD)
July 2018
AVERAGE y = -0.0531x + 3385
0
200
400
600
800
1000
1200
1400
1600
1800
2000
12/10/2008 12/10/2009 12/10/2010 12/10/2011 12/10/2012 12/10/2013 12/10/2014 12/10/2015 12/10/2016
Tota
l P
ug/g
, dry
wt.
Total P (ug/g dry wt.) Average top 10 cm Upper Arm 2008-2016
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Water Quality Activities – Planned • MS4 Storm Water Monitoring
• Lake County, Lakeport, Clearlake – Plan before 2020 Storm Season • Urban inputs – sediments, nutrients• Trash impacts – plan done in July
• TMDL Monitoring • Part of MS4 Monitoring above
• Expand surface stream monitoring – Quality & Quantity • Adobe Creek / Highland Springs • Upper Watershed – Alley, Clover, Tule Lake, Scotts Creek • Middle Creek Wetland Restoration Area Pre / Post
• Data Management • Get all new & old data into CEDEN • Portal / Access from WRD webpage
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TMDL!
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• Total Maximum Daily Load• Impaired waterbody 303d list by USEPA – bill of health • Allowable amount or “load” - health target • Way to gauge lake health – is what you are doing working? • Clear Lake Nutrient TMDL Chl A – 73ug/l
TMDL – What & How?
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0.0
50.0
100.0
150.0
200.0
250.0
300.0
350.0
400.0
Chl A
Con
cent
ratio
n (u
g/L
or p
pb)
Surface Chl A (ug/L) for Clear Lake (2005 - 2019) ug/L 0.5 m & 3 m
Upper Arm Lower Arm Oaks Arm TMDL Target (73 ug/L)
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• Reduce P / sediments inputs in from
• County MS4 areas • Yellow (not tan)
• Non-MS4 areas • Highland Springs • Middle Creek• Scott’s Valley • County Park area
Lake County’s Role in TMDL
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• Reduce P / sediments inputs in from • Purple Shaded areas – for TMDL • Urban areas • New Construction• Roads • Direct Lake input, outflows • Street sweeping / cleaning • Any other storm water infrastructure
Clearlake TMDL
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• Reduce P / sediments inputs from • Urban areas • New Construction• Roads • Direct Lake input, outflows • Street sweeping / cleaning • Impervious surface $$
Lakeport TMDL
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CWP TMDL - Steps Forward• Quantify Structural Control Develop method to track bmps
• Find them• Identify effectiveness Expand monitoring & Find literature
• Quantifying source control Outreach effectiveness • Blue Ribbon Outreach Special Project Proposal
• Program Expansion • Create a TMDL Monitoring Plan & QAPP (before 2020)• Budget for monitoring plan • Grants for planning projects are limited or absent• Increase Storm Water Outreach • Think about contribution of internal lake processes
• Boating activity • Shoreline activities
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July 2018
Example:
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July 2018
Example:
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July 2018
Example:
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See, Learn, Like
April 2019