Yucaipa Valley

Site Description: The station is located north of Yucaipa Valley Water District wastewater treatment facility, on the facility property, outside of the gated facility. It is in a small valley drainage, approximately 110 ft north of a concrete retention pond that is surrounded by a black metal fence. There is a rip rap drainage directly adjacent to the black fence. North of the site is the drainage head (see sight photo), and east and west of the site are hillsides connected to the drainage head. The drainage flows south of the site into the rip rap drainage and ultimately into the valley where the treatment facility is located. The soil type is described as SaD: San Emigdio sandy loam, 9 to 15 percent slopes. Measured slope is approximately 10 percent. Observed soil down to 1m appears very homogeneous, with little stratification, consisting of sandy loam. soil horizons were difficult to distinguish.