Soil & Plant Test Results

We are testing the safety of soils in these areas and of plants foraged from the soils. Soil tests for metals are being performed by the soil testing laboratory at the University of Massachusetts, Amherst.

Richmond 1 (1:10)
Richmond 2 (11:18)
W. Oakland 1 (20:22)
W. Oakland 2 (23:26)
W. Oakland 3 (27)
W. Oakland 4 (28)
W. Oakland 5 (29)

Some of those samples are for individual addresses; others are composites from a city block. Here is a listing of the sample locations. The test reports list a Sample ID that is either an individual sample number (e.g., 27) or a range of sample numbers (e.g., 1:10).

Plant tissue samples of 6 species—Stellaria media (chickweed), Taraxacum officinale (dandelion), Rumex crispus (dock), Malva sylvestris and M. neglecta (mallow), Tropaeolum majus (nasturtium), and Oxalis pes caprae (oxalis)—so far have all had undetectable levels of pesticides, including glyphosate, and of PCBs.

Nutritional panels show these plants to be high in fiber and vitamin A. Malva sylvestris (mallow) is particularly high in calcium. Tropolium majus (nasturtium) and Rumex crispus (curly dock) are particularly rich in vitamin A.