United States Office of Water EPA-822-R-99-014Environmental Protection 4304 December 1999Agency&EPA 1999 Updateof AmbientWater QualityCriteriaforAmmoniaSupersedes 1998 Update juipoota,okt -ri.: ..` 7.44, .
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1999 Update ofAmbient Water Quality Criteria for AmmoniaSeptember 1999Supersedes 1998 UpdateU.S.
Environmental Protection Agency
Office of WaterOffice of Science and TechnologyWashington, D.C.
Office of Research and Development
Mid-Continent Ecology DivisionDuluth, Minnesota NoticesThis update provides guidance to States and Tribes authorized to establish waterquality standards...
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