Final Supplemental Environmental Impact Report / Environmental Assessment

 for the

Calleguas Regional Salinity Management Project -

Hueneme Outfall Replacement Project

Please note:  Only sections that were revised from Draft document are posted

The final document will be considered for certification by Calleguas MWD's Board of Directors
at its regularly scheduled meeting on October 3rd, 2007.

For further information, please contact Eric Bergh by phone at 805-579-7128 or by email to ebergh@calleguas.com.

Note: All files provided in Adobe PDF. 

REVISED DOCUMENT SECTIONS

bullet Cover Sheet 
bullet Table of Contents   
bullet 1.0   Introduction 
bullet 2.0   Summary 
bullet 3.0   Proposed Project/Proposed Action 
bullet 4.0   Alternatives to the Proposed Action 
bullet 5.0   Environmental Analysis
bullet 5.3    Air Quality 
bullet 5.4    Water Resources 
bullet 5.5    Biological Resources 
bullet 13.0  Response to Comments

REVISED APPENDICES

bullet E - Water Quality Summary
bullet H - Site Characterization Study

Revisions incorporated into the Final EIR are itemized below.

bullet Cover and Table of Contents was updated to reflect the Final EIR/EA.
bullet Section 1.0 Introduction.  Page 1-11. Section 1.7. Paragraph reflecting the public review period for the Draft EIR/EA.
bullet Section 2.0 Summary.  Page 2-1, Section 2.1.3.  Typographical correction (following).
bullet Section 3.0 project Description, Page 3-11.  Top of page.  Change reflects the District’s decision to use a port fitted with a non-return valve of the duckbill type or similar.
bullet Section 3.0 Project Description, Page 3-11.  Top of page.  Change reflects the District’s decision regarding outfall configuration. Statement added “The diffuser will be 30-inch ID pipeline, be the same material as the seafloor section, and have about 30 ports, at equal spacing staggered on alternate sides so the discharge is evenly distributed along both sides of the diffuser.  Each discharge port would have short riser angles off the side of the pipe, fitted with a duckbill non return valve.”
bullet Section 5.3, Project Description, Page 5.3-12.  At the request of the Ventura County Air Pollution Control District the following statement was clarified in text.  “The proposed project would generate short-term diesel exhaust emissions associated with marine vessel operation, equipment usage, and truck transportation of construction materials.  Diesel exhaust emissions associated with project construction would be short-term and minimal in a regional context; however such emissions represent a short-term contribution to public health risk associated with exposure of sensitive receptors to toxic air contaminants.  In a local context, the project would represent a short-term contribution to public health risk associated with exposure to toxic air contaminants to sensitive receptors including adjacent schools, hospitals, residents and day care facilities.”
bullet Section 5.4, Water Quality, Page 5.4-7.  The text was revised to reflect the increased dilution ratio of the outfall from 99 to 1 to 100 to 1.  Table 5.4-2 was updated to reflect this change.
bullet Section 5.4, Water Quality, Page 5.4-8.  The follow paragraph was added to reflect the current review of the NPDES Permit by the RWQCB and the potential conditions associated with the permit approval.  “Currently the Regional Water Quality Control Board is evaluating the information contained in the Draft NPDES Permit – Report of Waste Discharge. Conditions of approval of the NPDES permit will include performance standards, including those outlined in the Ocean Plan, which must be met during operation of the outfall. These conditions will include long term monitoring requirements and appropriate chemical analysis methodologies needed to ensure discharges from the proposed outfall are not resulting in impacts to the marine environment.  These NPDES permit conditions will provide a mechanism to address specific chemical parameters of concern identified including both chronic and acute toxicity and pH.”
bullet Section 5.5, Biology, Page 5.5- 15.  The top paragraph was revised to reflect the importance of sandy beaches when snowy plovers and other sensitive species are present.
bullet Section 13.0, Response to Comments.  The section was added to Final EIR/EA and contains the comment letters and public workshop transcript.  Responses to these comments are provided to each item.
bullet Appendix E was updated with new water quality data based on the increased dilution ratio of 100 to 1
bullet Appendix H was updated to include the Final Fugro Site Characterization Study.