Stanislaus County domestic wells over safe drinking limit for nitrate
Each circle represents a well that tested over the maximum contamination limit for nitrate (10µg/L). The darker the circle the higher the contamination.
The map shows an outline of Stanislaus County. concentrated in the mid-section of the county are circles ranging from light to dark. There is a concentration of darker circles in a region southwest of the unincorporated community of Keyes.
