TABLE 4.

Concentrations of bacteria in sediment samples

Sample site and no.Concn (CFU/g of wet sediment) or presence of bacteria
Fecal StreptococcusTotal coliformE. coliFecal coliformEnterococcusPseudomonas aeruginosaStaphylococcus aureus
Nairn
    11008,450Present1,200150150<50
    215010,550Present1,7505050<50
    31,100ConfluentPresent12,100150<50<50
    41008,850Present35050<50<50
    5350ConfluentPresent1,25050<50<50
    Mean3603,33090
Saybrook Place
    6450ConfluentPresent1,150100<50<50
    7100ConfluentPresent950100<50<50
    Mean2751,050100
Jackson Street
    11680ConfluentPresent76054060<20
    12400ConfluentPresent66040<20<20
    13360ConfluentPresent1,40080<20<20
    14180ConfluentPresent660<2080<50
    15500ConfluentPresent1,000<20<20<20
    16<20ConfluentPresent80<20<20<20
    Meana355760115
Basking Ridge
    8480ConfluentPresent2,600160<20<20
    91,000ConfluentPresent42040<20<20
    10280ConfluentPresent30060<20<20
    Mean5871,10787
  • a Value of one-half the limit of detection used for fecal Streptococcus and Enterococcus results, reported as <20.