Archived - Standard Industrial Classification - Establishments (SIC-E) 1980
4212 - Water Well Drilling
Establishments primarily engaged in drilling, or digging water wells, installation and repair of water well pumps and well piping systems. Establishments primarily engaged in installing and repairing piping systems within buildings are classified in 4241 - Plumbing those primarily engaged in drilling water intake wells in oil and gas fields are classified in 0919 - Other Service Industries Incidental to Crude Petroleum and Natural Gas.
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