Port Washington Pit and MillPast Producer • Sand and Gravel, Construction
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Port Washington PlantPast Producer • Sand and Gravel, Construction
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Nassau Clay MinePast Producer • Clay
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Mccormack Sand & Gravel PitProducer • Sand and Gravel, Construction
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Atomergic Chemetals/Plainview, N.Y.Unknown • Thorium
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Controlled Castings/Plainview, N.Y.Unknown • Thorium
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Nassau Clay MinePast Producer • Clay
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L I Tungsten Corp/ Glen Cove, N.Y.Unknown • Tungsten
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Port Washington PitPast Producer • Sand and Gravel, Construction
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