Use of Copper to Control Algae and Aquatic Animial Invasive Species in Lake Casitas

2 Documents in Project

Summary

SCH Number
2022060526
Lead Agency
Casitas Municipal Water District
Document Title
Use of Copper to Control Algae and Aquatic Animial Invasive Species in Lake Casitas
Document Type
NOD - Notice of Determination
Received
Posted
8/22/2022
Document Description
Casitas Municipal Water District proposes to apply copper-containing algaecides and/or molluscicides in compliance with Water Quality Order 2013-0002-DWQ (CAG990005) Statewide General NPDES Permit for Residual Aquatic Pesticide Discharges to Waters of the U.S. from Algae and Aquatic Weed Control Applications & Water Quality Order 2016-XXXX-DWQ (CAG990006) Statewide General NPDES Permit for Biological Pesticides and Residual Chemical Pesticide Discharges to Waters of the U.S. from Aquatic Animal Invasive Species Control Applications to control algae and invasive mussels that threaten to degrade Lake Casitas' existing and potential beneficial uses. Nuisance algae growth can degrade aesthetic and recreational functions of the lake and present operational challenges to reservoir and water treatment facility managers. In addition, cyanobacteria (blue-green algae) blooms can produce cyanotoxins which impart undesirable taste and odors to lake water and drinking water and can be harmful to humans, domesticated animals, and wildlife. Dreissenid mussels have been identified in nearby waterbodies and pose an immediate threat due to their ability to colonize in and block water delivery infrastructure and strip food from the water that is necessary to sustain other aquatic life. Notice of Determination from August 10, 2022 Board meeting was filed with the Ventura County Clerk and Recorder, and CDFW MND fees were paid on August 12, 2022.

Contact Information

Name
Jordan Switzer
Agency Name
Casitas Municipal Water District
Job Title
Water Quality Supervisor
Contact Types
Lead/Public Agency

Location

Cities
Casitas Springs, Oak View
Counties
Ventura
Regions
Unincorporated
Other Location Info
Lake Casitas

Notice of Determination

Approving Agency
Casitas Municipal Water District
Approving Agency Role
Lead Agency
Approved On
County Clerk
Ventura
Final Environmental Document Available at
1055 Ventura Avenue, Oak View, CA 93022

Determinations

(1) The project will have a significant impact on the environment
No
(2a) An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA
No
(2b) A Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
Yes
(2c) An other document type was prepared for this project pursuant to the provisions of CEQA
No
(3) Mitigated measures were made a condition of the approval of the project
Yes
(4) A mitigation reporting or monitoring plan was adopted for this project
Yes
(5) A Statement of Overriding Considerations was adopted for this project
No
(6) Findings were made pursuant to the provisions of CEQA
Yes

Attachments

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