Natural Treatment Site: Forge

Forge NTS siteThe Forge NTS site is located along Portola Road in the foothills north of Irvine.  The site is surrounded by urban development and agricultural land uses.  It has yet to receive sufficient flows to warrant regular water quality monitoring.  The basin vegetation has filled in well and presents a good mixture of upland and wetland species.  It is anticipated that this site will soon require regular water quality monitoring. Went online June 2007.

 

 

   

 Location & Size


L
ocation: 3801.5 Portola Parkway, Irvine
Size: 3 acres
Tributary Watershed: 485 acres

 Biological Values


The site is somewhat isolated, and wildlife values are low. The following nesting bird species were observed on the site: Marsh Wren, Bewick’s Wren, House Wren, Mallard, Western Bluebird, House Finch, Black Phoebe, Tree Swallow, Common Yellowthroat, Song Sparrow, American Crow, Greater Roadrunner, Yellow Warbler, Mourning Dove, Yellow-breasted Chat, American Coot, Bullock’s Oriole, Ash-throated Flycatcher, American Robin, Cooper’s Hawk, Red-shouldered Hawk.

 Maintenance


Routine Maintenance Activities:

    • TruGreen LandCare provides routine irrigation and landscape maintenance services at the site. Additional work such as mulch replacement, irrigation repairs, aquatic herbicide application, aquatic vegetation removal, and sediment removal were performed throughout the year.
    • System operations staff performed weekly site inspection, water quality monitoring, and landscape and irrigation maintenance review.