Federal Limits
The federal government has established
discharge limits for specific industries, called categorical
dischargers. These must obtain a full King County permit regardless
of their wastewater discharge volume. Categorical industries
include the following:
Aluminum forming |
Metal foundries |
Battery manufacturing |
Nonferrous metal
manufacturing |
Coil coating |
Pesticide manufacturing |
Copper forming |
Petroleum refining |
Electrical/electronic
components |
Pharmaceutical
manufacturing |
Electroplating |
Circuit-board
manufacturing |
Porcelain enameling |
Iron/steel manufacturing |
Pulp/paper mills |
Leather tanning
finishing |
Wood preserving |
Metal finishing |
Inorganic chemical
manufacturing |
Centralized waste
treatment |
Two Industrial Waste investigators discuss
a sample of wastewater taken while inspecting an industry that
discharges wastewater to the King County sewerage system.
(Page revised 9/25/07. For further information, e-mail Doug
Hilderbrand.)
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