Irvine Ranch Water District San Diego Creek Watershed Natural Treatment System (NTS)

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)
Document Type
NOD - Notice of Determination
Received
Posted
4/29/2004
Present Land Use
Varies depending on location of 31 proposed NTS Plan Facilities

Document Description
The NTS Master Plan is a regional plan proposed for implementation by IRWD that would result in natural treatment of runoff from both existing and new development within the San Diego Creek Watershed. The NTS Master Plan consists of the creation and consolidated operation and management of new NTS wetlands and at least one, subsurface wetland-like feature to assist in managing the quality of surface runoff within the San Diego Creek Watershed. The goal of the NTS Master Plan is to assist in restoring the "chemical, physical, and biological integrity" of the San Diego Creek Watershed in compliance with the key objective of the Federal Clean Water Act. The NTS wetlands will enhance assimilative capacity of low value drainages resulting in natural removal of urban pollutants from dry weather flows, "first flush" storm water runoff and small storms. In addition, the NTS constructed wetlands will provide emergent marsh/wetland vegetation in upland areas and some drainages. It will assist in the Watershed's compliance with Santa Ana Regional Water Quality Control Board and U.S. Environmental Protection Agency requirements for storm water quality and pollution reduction targets. The NTS Master Plan will also assist the County and cities within the San Diego Creek Watershed in complying with the applicable Municipal Separate Stormwater Sewer System General NPDES Permit and Waste Discharge Requirements (MS4 Permit) and Total Maximum Daily Loads (TMDLs).

Contact Information
Norris Brandt
Irvine Ranch Water District
Lead/Public Agency
15600 Sand Canyon Avenue
Irvine, CA 92619-7000

Phone : (949) 453-5300

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
Irvine Ranch Water District
Approving Agency Role
Lead Agency
Approved On
Final Environmental Document Available at
Irvine Ranch Water District 15600 Sand Canyon Avenue Irvine, CA 92618

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. You may also contact the OPR via email at state.clearinghouse@opr.ca.gov or via phone at (916) 445-0613.

Download CSV New Search Print