![]() One was an Aroclor Method, similar to the USEPA Method 508 that is used by most public water systems for routine testing of PCBs. Two methods were used to analyze the samples for PCBs. These systems were sampled approximately every two weeks. ![]() As there were no Upper Hudson River systems actively using the river as a water source during dredging, we focused on four Lower Hudson River systems: Green Island, Rhinebeck, Port Ewen and Poughkeepsie. However, prior to the start of dredging, Stillwater received a carbon filtration system from the US Environmental Protection Agency (USEPA) to remove PCBs from their well water, while Waterford and Halfmoon decided to use finished drinking water from Troy. We intended to include the same systems for the Phase 1 monitoring. The baseline monitoring included systems in the Upper and Lower Hudson Rivers. All samples were found to have a PCB concentration less than the Federal and State drinking water standard of 500 nanograms per liter (ng/L). Samples were collected before treatment (raw water) and after treatment (finished water). These samples were compared to samples collected prior to dredging, to help us understand if water quality changed. The monitoring program was developed to provide information about the systems during the dredging of PCB-contaminated Hudson River sediments by the General Electric Company. Hudson River Public Water System 2009 Phase 1 Monitoring Program Summaryįrom May through November 2009, the New York State Department of Health (NYSDOH) collected water samples for polychlorinated biphenyl (PCB) analysis from public water systems on the Hudson River. ![]()
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