Following is a link to a satellite photo of the east side of the Uniroyal/Lanxess property.

Click on the small arrow at the top right corner of the white rectangle to reduce the rectangle and increase the map of the Uniroyal/Lanxess site.

Then note the three primarily north to south lines (ie. vertical or top to bottom) on the east (right) side of the Canagagigue Creek. The far right one may be a fence built in 1993 just prior to the excavations of RPE 4 & 5 whereas the other two lines, most likely, are Interceptor Trenches, otherwise known as horizontal groundwater collectors. They run south, then east over to the Stroh Farm.