5 SOUTH BEACHES E DEEP MONITOR WELL :z 1550 1700 FEET CD 4 0 ry" I z 3 2o 00 -jiu F 0 JUL-87 DEC-87 JUN-88 DEC-88 JUN-89 DEC-89 JUN-90 DEC-90 JUN-91 DEC-91 DATE Figure 42. TKN values of the South Beaches well deep monitor zone (data from the DER Bureau of Drinking and Groundwater Resources).