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Ecology Publications & Forms |
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Ecology Publications & Forms |
| Title | Review of USEPA's 1999 Ammonia Criteria for Freshwaters Draft Discussion Paper andLiterature Summary |
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Review of USEPA's 1999 Ammonia Criteria for Freshwaters Draft Discussion Paper andLiterature Summary (Number of pages: 38) (Publication Size: 378KB)
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| Author(s) | Cheryl Niemi | ||||
| Description | On December 22, 1999 the United States Environmental Protection Agency (USEPA) published the 1999 Update of Ambient Water Quality Criteria for Ammonia (U.S. Environmental Protection Agency, 1999) (hereinafter referred to as the 1999 Update). The new 1999 criteria are higher than the existing criteria values (WAC 173-201A-040) and, because of the emphasis placed on salmonids in regulatory decisions made in the Pacific Northwest, the 1999 Update criteria were evaluated to determine whether the increased criteria values posed any risk to salmonids. The evaluation was done within the context of a larger and more long-term process to revise the surface water standards for the state of Washington (WAC 173-201A). This publication includes the cover decision memorandum. |
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The mission of the Department of Ecology is to protect, preserve, and enhance Washington’s environment. To help us meet that goal, please consider the environment before you print or request a copy.
ADA Accessibility The Department of Ecology is committed to providing people with disabilities access to information and services by meeting or exceeding the requirements of the Americans with Disabilities Act (ADA), Section 504 and 508 of the Rehabilitation Act, and Washington State Policy #188. Visit Ecology’s website for more information. |
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| Contact | Water Quality Program at 360-407-6600 | ||||
| Keywords | update, environmental, Pacific Northwest, water, water quality, quality, freshwater, Environmental Protection Agency, ammonia | ||||
| WEB PAGE | Surfacse Water Quality Standards Website |
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