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"And then they go up to Alpin Haus to get something for their boats, or to Ace Hardware; all of these small businesses are missing out on the boaters. Shane Mahar, a spokesman for the New York State Canal Corporation, said the completion of extensive rehabilitation projects at Lock E-7 in Niskayuna, Lock E-13 in the hamlet of Yosts between Fonda and Canajoharie and at Lock E-19 in Frankfort, Herkimer County, were delayed by the onset of the coronavirus pandemic, and won't be complete for a couple of more weeks. Thus the Great Flats Aquifer is a critical municipal water supply.This current situation should be a concern for Schenectady and Rotterdam because they have detected TCE in well water in the recent past [8]. It should also be a concern for Glenville because if those wells draw water from father afield, they may intersect impaired groundwater from the Schenectady International site – also contaminated by VOCs [16,17] - to the northwest (see map). This possible contamination route was evaluated by the Glenville Well Field Protection Committee back in 2013 [4], but those discussions considered full-pool summer conditions, not no-pool summer conditions with high average daily withdrawals.It has been a dry spring and early summer in eastern NY and New England. precipitation has been well below normal for the last 90 days, seven-day stream flow is much below normal (<10% for many stations in the Mohawk), and groundwater levels are also below normal [6]. Last year, she helped operate a grant to give tours of 15 miles of canal in different parts of Montgomery County, including St. Johnsville, Canajoharie, Fonda, Schoharie Crossing, and she would have done it again this year had it not been for the pandemic and the delay in reopening the river. The permeable transmissive layer is underlain by relatively impermeable glacial till and bedrock. It is the largest tributary of the Hudson River. We depend on this fragile symbiotic relationship between the River and our municipal water supply.The Alpha Geoscience report suggested that the Navy Depot TCE contaminant plume is to the west of a groundwater divide and therefore is not a threat to the Schenectady well field if pumping rates increase (as proposed in the Glenville Energy Park application). However, they did not indicate the potential source of the TCE (and toluene) that ended up in the Schenectady and Rotterdam well field in the 1990s.It may very well be that we are at a pivotal point with respect to groundwater use and drawdown of the aquifer. The Great Flats Aquifer has enormous capacity, but it is very important that we consider how the rate of pumping affects the level of wells and how the expanded cone of depression might begin to draw contaminated water.Over 50 years ago, radioactive tritium from tests of thermonuclear devices resulted in fallout in the Schenectady area, and significant pulses of radioactive tritium (3H in H2O) could be measured in the river and then later in water of the Schenectady well field [2]. August 2011 to current year. According to Schenectady Metroplex statement in 2011:The Defense National Stockpile Center Scotia Depot Site (or \u201CScotia Depot\u201D site) in the Scotia Industrial Park is a NY State Superfund site due to TCE contamination [12,13]. Time is not on our side: this situation needs to be addressed now because in August or September it may be too late to attempt an intervention.Operation of Lock 7 and the permanent Vischer Ferry dam also affect river levels in part because an extra 2 feet is added to the Schenectady pool when the flashboards are annually installed on the top of the dam. This year everything is different due to the Pandemic and the pause in Canal operations. Alpha Geoscience also reviewed data that showed pumping tests indicating that the cone of depression of the Schenectady well field extends north of the Mohawk River when the River makes limited contribution, which is the situation when the river stage and volume are affected by removal of the dam at Lock 8 and no flashboards on the Vischer Ferry dam at Lock 7 [8]. They concluded that the Schenectady wells draw from the aquifer north of the Mohawk during unusually dry climatic conditions and very high pumping rates – a situation we are in now.One thing is clear: operations of the Canal directly affect groundwater levels in the Great Flats Aquifer. Occasional low-flow and/or miscellaneous discharge measurements, water years 1899-1901, 1920, 1953, 1966-67. There are mandatory water restrictions in several towns in MA (Ipswich, Georgetown) and dry conditions have resulted in an especially high number of wildfires in the state of Maine (500 in the spring of 2020) [6].The 2020 Pandemic has interrupted opening of the canal, and thus we are in a summer season, but in non-navigation conditions, which means reduced aquifer recharge. She said she's had enough and announced on Monday that she will only keep her rental and tour business open from July 20 to Aug. 2 this summer. "Businesses are losing a lot. She said normally at this time of year she'd be giving guided tours on the Mohawk with her fleet of colorful kayaks three or four nights a week.
"And then they go up to Alpin Haus to get something for their boats, or to Ace Hardware; all of these small businesses are missing out on the boaters. Shane Mahar, a spokesman for the New York State Canal Corporation, said the completion of extensive rehabilitation projects at Lock E-7 in Niskayuna, Lock E-13 in the hamlet of Yosts between Fonda and Canajoharie and at Lock E-19 in Frankfort, Herkimer County, were delayed by the onset of the coronavirus pandemic, and won't be complete for a couple of more weeks. Thus the Great Flats Aquifer is a critical municipal water supply.This current situation should be a concern for Schenectady and Rotterdam because they have detected TCE in well water in the recent past [8]. It should also be a concern for Glenville because if those wells draw water from father afield, they may intersect impaired groundwater from the Schenectady International site – also contaminated by VOCs [16,17] - to the northwest (see map). This possible contamination route was evaluated by the Glenville Well Field Protection Committee back in 2013 [4], but those discussions considered full-pool summer conditions, not no-pool summer conditions with high average daily withdrawals.It has been a dry spring and early summer in eastern NY and New England. precipitation has been well below normal for the last 90 days, seven-day stream flow is much below normal (<10% for many stations in the Mohawk), and groundwater levels are also below normal [6]. Last year, she helped operate a grant to give tours of 15 miles of canal in different parts of Montgomery County, including St. Johnsville, Canajoharie, Fonda, Schoharie Crossing, and she would have done it again this year had it not been for the pandemic and the delay in reopening the river. The permeable transmissive layer is underlain by relatively impermeable glacial till and bedrock. It is the largest tributary of the Hudson River. We depend on this fragile symbiotic relationship between the River and our municipal water supply.The Alpha Geoscience report suggested that the Navy Depot TCE contaminant plume is to the west of a groundwater divide and therefore is not a threat to the Schenectady well field if pumping rates increase (as proposed in the Glenville Energy Park application). However, they did not indicate the potential source of the TCE (and toluene) that ended up in the Schenectady and Rotterdam well field in the 1990s.It may very well be that we are at a pivotal point with respect to groundwater use and drawdown of the aquifer. The Great Flats Aquifer has enormous capacity, but it is very important that we consider how the rate of pumping affects the level of wells and how the expanded cone of depression might begin to draw contaminated water.Over 50 years ago, radioactive tritium from tests of thermonuclear devices resulted in fallout in the Schenectady area, and significant pulses of radioactive tritium (3H in H2O) could be measured in the river and then later in water of the Schenectady well field [2]. August 2011 to current year. According to Schenectady Metroplex statement in 2011:The Defense National Stockpile Center Scotia Depot Site (or \u201CScotia Depot\u201D site) in the Scotia Industrial Park is a NY State Superfund site due to TCE contamination [12,13]. Time is not on our side: this situation needs to be addressed now because in August or September it may be too late to attempt an intervention.Operation of Lock 7 and the permanent Vischer Ferry dam also affect river levels in part because an extra 2 feet is added to the Schenectady pool when the flashboards are annually installed on the top of the dam. This year everything is different due to the Pandemic and the pause in Canal operations. Alpha Geoscience also reviewed data that showed pumping tests indicating that the cone of depression of the Schenectady well field extends north of the Mohawk River when the River makes limited contribution, which is the situation when the river stage and volume are affected by removal of the dam at Lock 8 and no flashboards on the Vischer Ferry dam at Lock 7 [8]. They concluded that the Schenectady wells draw from the aquifer north of the Mohawk during unusually dry climatic conditions and very high pumping rates – a situation we are in now.One thing is clear: operations of the Canal directly affect groundwater levels in the Great Flats Aquifer. Occasional low-flow and/or miscellaneous discharge measurements, water years 1899-1901, 1920, 1953, 1966-67. There are mandatory water restrictions in several towns in MA (Ipswich, Georgetown) and dry conditions have resulted in an especially high number of wildfires in the state of Maine (500 in the spring of 2020) [6].The 2020 Pandemic has interrupted opening of the canal, and thus we are in a summer season, but in non-navigation conditions, which means reduced aquifer recharge. She said she's had enough and announced on Monday that she will only keep her rental and tour business open from July 20 to Aug. 2 this summer. "Businesses are losing a lot. She said normally at this time of year she'd be giving guided tours on the Mohawk with her fleet of colorful kayaks three or four nights a week.