POSITIVE MONITORING WELL RESULTS FOR PESTICIDES
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Well
#
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Collection Date
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Paclobutrazol
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Triadimenol
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Fenarimol
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Propiconazole a/b
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MW-4
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10/2/01
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<1.0
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1.0
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12/10/01
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1.3
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<1.0
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1/30/02
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3.8 (resample)
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3/26/02
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2.0
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5/28/02
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1.8
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6/25/02
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<1.0
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9/24/02
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<1.0
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MW-9
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3/29/01
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<4.0
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6/27/01
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<5.0
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10/3/01
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<1.0
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<1.0
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<1.0
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<5.0
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12/10/01
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<1.0
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<1.0
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<1.0
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<5.0
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3/25/02
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<1.0
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<1.0
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<1.0
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<5.0
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6/26/02
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<1.0
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<1.0
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<0.1*
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<0.1**
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9/23/02
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<1.0
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<1.0
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<0.1
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<0.1
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12/17/02
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<1.0
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<1.0
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<0.1
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<0.1
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3/24/03
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<1.0
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<1.0
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<0.1
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0.1 (isomer a)
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6/ /03 (awaiting results)
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9/ /03 (awaiting results)
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The above data is a compilation from ongoing reviews by the Suffolk County Water Authority's summaries of the test results for "The Bridge."
< = less than
MW = "Monitoring Well"
* switched labs that could detect Fenarimol at lower concentrations
** switched labs that could detect Propiconazole at lower concentrations
NOTE: The Developer's turf consultant's initial report stated that: "No pesticides or pesticide metabolites are expected to impact groundwater at the application rates listed in the reasonable worst case pest infestation scenario..." Despite this claim and the expectation that no chemicals would impact the groundwater, three of the chemicals, paclobutrazol, triadimenol, propiconazole (isomer a) have been documented to have impacted groundwater quality and others have been detected in lysimeters. Therefore, it can be said that the consultant's predictive computer groundwater modeling did not prevent the impacts to groundwater quality.
 South Fork Groundwater Task Force
PO BOX 2360 Sag Harbor, NY 11963
Phone/Fax: 631 - 725 - 6200
Site By: Hamptons Online
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