Qua Quagga ga Contr Control ol Ef Effor orts ts The Quagga - - PowerPoint PPT Presentation

Lak Lake Pir e Piru/Lo u/Lower er Pir Piru C u Creek eek Qua Quagga ga Contr Control

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Effor

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The Quagga Mussel: Difficult and Expensive to Eradicate

Al All l So Soluti lution

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s Come Come wi with th a Cost a Cost & Cha & Chall llen enge ge

Bac Backg kground

• und & His

& Histor tory- The Stor he Story y of

• f United

United

• Formed Under Water Conservation Act of 1931
• Manage Water Resources of Santa Clara River

Watershed and Associated Aquifers

• Facilities
• Santa Felicia Dam & Lake Piru – Capture Winter

Flows for Later Release for Aquifers Recharge

• Freeman Diversion & Associated Aquifer

Recharge Spreading Grounds

• Surface Water Delivery Systems to Reduce

Coastal Pumping & Associated Seawater Intrusion

• Potential Future Recycled Water Distribution
• Potential Future Seawater Desalination Facility

UNITED PURPOSE & BACKGROUND

• Annual Operating Budget – Approx. $19 Million
• Majority of Funding via Groundwater

Replenishment Fees

• Recent Litigation regarding Legal Basis of

District’s Funding Mechanism

• Water Conservation Act (Statute) Versus Voter

Proposition 218 (Constitution)

• Appealed to California Supreme Court

UWCD FINANCIAL SETTING

• Approximately $300 Million pending Capital

Improvement Projects requiring funding

• Significant Infrastructure Replacement &

Rehabilitation Projects

• Endangered Species Act-Related Projects for

Steelhead Trout Passage at Freeman Diversion

• Current estimate for Quagga Monitoring & Control

$300,000 per year

FINANCIAL SETTING CONTINUED

Monitoring, Control & Prevention Efforts: Pre-infestation

• 2008

2008-pr prese esent: nt: Vess essel ins el inspe pection ction and and pr preven ention tion pr prog

• gram

am

• Based on Lake Casitas prevention program, required

all boats entering reservoir to be clean, drain and dry

• 2008-2013 approximately 50,000 boats inspections

were conducted (avg. of 7,500 per year)

• 2010

2010-20 2013 13: : Ph Physica ysical l mon monitori itoring ng pr prog

• gram

am

• Substrates were inspected at random intervals

throughout the year to monitor for settlement & recruitment

UWCD PREVENTION MEASURES: Pre-infestation

• Ed

Educ ucation tion & T & Train aining ing (pr (pre- an and d po post st-inf infes esta tation tion)

• Provided watercraft inspection and decontamination

training to both UWCD staff and onsite concessions staff

• Provided visitors with educational handouts & flyers

upon entry (pre & post infestation) and installed prevention signage

• En

Enfor

• rce

cemen ment t (La (Lake e Pir Piru par park k ser services of vices offi ficer cers) s)

• In 2012 the adoption of UWCD Ordinance 15 made it

unlawful to fail to undergo a vessel inspection prior to launching at Lake Piru or to import any fish, mollusk,

• r crustacean into the waterbody

Containment, Control & Prevention Efforts: Post-Infestation

Initial Discovery

UW UWCD CD Con Conta tainmen inment, t, Con Contr trol

• l &

& Pr Preven ention tion: Pos

• st-Inf

Infes esta tatio tion

Mussel Discovery: December 2013

• Monitor and quantify infestation
• Quantify initial infestation (December 2013-February

2014)

• Research Lake Piru’s physical and chemical conditions

(December 2013-present)

• Monitor spread of infestation (substrates & visual

monitoring of lake, creek & river)

• Implement integrated pest management

(IPM) program

• Use least hazardous tactics first
• Removal from critical infrastructure via hand

scraping, drying & disposal (more than 10,000 lbs. to date)

• Tarping to create anoxic conditions (round #1

installed: Aug. –Sept. 2014)

• Developed and submitted draft Monitoring

& Control Plan to CDFW (Draft #1 in Fall of 2014)

UW UWCD CD Con Conta tainmen inment, t, Con Contr trol

• l &

& Pr Preven ention tion: Pos

• st-Inf

Infes esta tatio tion, n, co cont ntinu inued ed

Recent Efforts: What We Are Doing Now

• Oct

October

• ber 2015

2015

• United submitted 2nd draft Quagga Mussel Monitoring &

Control Plan (QMMCP) to CDFW

• Febr

bruar uary y 2016 2016

• CDFW provided comments on QMMCP

.

• Cited non-compliance with CDFW Code 2301 & 2302.
• Febr

bruar uary-Pr Present esent 2016 2016

• We are considering modifications to QMMCP (hired

consultant)

• We are evaluating more extensive control and

containment options

• April

pril 201 2016

• United met with CDFW, NMFS, and FERC to discuss
• ptions for control and containment

United’s More Recent Efforts

Con Contr trol

• l &

& Con Conta tainmen inment t Opt Options ions: Wha hat t Is Being Is Being Eva Evalua luate ted? d?

19

• 1. Modify lake levels
• Goal is to desiccate mussels by lowering the lake level

periodically

• 2. Use cone valves to destroy veligers through

turbulence

• Contracting with Consultant to evaluate
• 3. Modify outlet works to increase turbulence to

control the spread of live veligers out of Lake Piru

• 4. Modify releases from lake
• 5. Use Zequanox or another chemical treatment to kill

mussels and veligers

• Developing application approach and costs
• Identifying approvals needed to use Zequanox or

another product

• 6. Monitor Piru Creek and Santa Clara River
• 7. Analyze & Develop a Lower River Protection Plan

Control & Containment Options, Continued

MY MY NO NOTES TES

QUAGGA MUSSEL INFESTATION-RELATED EXPENDITURES 01/01/2014 - 4/21/2015 Monitoring&Planning: Vendors-Contractors Misc./Other Legal Salaries Materials/Goods Permits/Licens es TOTAL United: Admin. $32,932.50 $32,932.50 United: Eng. $9,486.49 $9,486.49 United: EPCD $53,748.94 $349.18 $54,098.12 United: Rec $71,688.25 $71,688.25 United: O&M $791.39 $791.39 Materials/Goods $17,320.26 $17,320.26 Permits $195.00 $195.00 Misc/Other $3,689.98 $3,689.98 Legal $3,022.92 $3,022.92 Subtotal United Departments $ - $3,689.98 $3,022.92 $168,647.57 $8,834.72 $195.00 $184,390.19 UCSB-Carrie Culver $32,400.00 $32,400.00 Eco Marine/ Anghera $26,998.14 $26,998.14 Eco Marine/ Morris $41,845.25 $41,845.25 Cardno ENTRIX $51,840.25 $51,840.25 Subtotal Contractors/Vendors $153,083.64 $ - $ - $ - $ - $

• $153,083.64

TOTAL EXPENDITURES $153,083.64 $3,689.98 $3,022.92 $168,647.57 $17,699.44 $195.00 $337,473.83

1.Reducing lake levels could negatively affect Recreation, boat ramps, marina operations, camping and recreational water deliveries

• Stakeholder notification and consultation
• Development of a plan for the temporary location of

marina facilities and water treatment barge

• Consider alternative water supply for recreation

facilities

• Consider operational adjustments to maintain

minimum levels of recreation

Implications of Options Considered

• 2. Could Trigger Permitting
• FERC license modification
• Consultation with NMFS
• Consultation with USFWS
• CDFW
• California Department Of Pesticide Regulation
• California Regional Water Quality Control Board
• CEQA
• NEPA

Implications of Options Considered