Irvine Ranch Water District San Diego Creek Watershed Natural Treatment System (NTS) (SAA #1600-2011-0013-R5)
10 Documents in Project
Summary
SCH Number
2002021120
Lead Agency
Irvine Ranch Water District
Document Title
Irvine Ranch Water District San Diego Creek Watershed Natural Treatment System (NTS) (SAA #1600-2011-0013-R5)
Document Type
NOD - Notice of Determination
Received
Posted
4/18/2011
Present Land Use
Varies depending on location of 31 proposed NTS Plan Facilities
Document Description
The project involves installation of an infiltration gallery and discharge structure within Peters Canyon Wash for Irvine Ranch Water District's Cienega Selenium Treatment Facility. The influent structure will be installed approximately 60-feet upstream of an existing check dam, and is composed of twelve, slotted, 12-inch stainless steel pipes, installed perpendicular to the invert of Peters Canyon Wash. Each pipe will be approximately 110-feet long, and the twelve pipes will be placed 20-feet apart. The pipes will be buried in a 3-foot filter bed and covered by 1/4 ton of rip rap. The twelve infiltration pipes will gravity feed into four manholes, which will gravity feed into one 24-inch PVC header pipe. The PVC header pipe will discharge into a pump station wet well which will pump the water to the treatment system for selenium removal.
Contact Information
Name
Mr. Barabe
Agency Name
Dept. of Fish and Game
Contact Types
Lead/Public Agency
Phone
Location
Cities
Irvine, Irvine, Tustin, Lake Forest, Laguna Hills, Laguna Woods, ..., Laguna Hills, Laguna Woods, Lake Forest, Tustin
Counties
Orange
Total Acres
61,000
State Highways
I-5,I-405,SR-55,SR-261,SR-133
Airports
John Wayne Airport
Other Location Info
Upper Newport Bay
Notice of Determination
Approving Agency
CDFG
Approving Agency Role
Responsible Agency
Approved On
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
Yes
(2b) A Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
No
(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
N/A
(5) A Statement of Overriding Considerations was adopted for this project
No
(6) Findings were made pursuant to the provisions of CEQA
Yes
Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, please contact the lead agency at the contact information listed above.