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Ammonia Aquatic Life Criteria
Re-Evaluation
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Ammonia 2009 Update
- Federal Register Notice (December 30, 2009)
- 2009 Draft Ammonia Criteria (PDF) (192 pp, 1.88MB)
- 2009 Ammonia Criteria Fact Sheet (December 2009)
- Background
- Fact Sheet (July 2004)
- Federal Register Notice (July 8, 2004)
Ammonia 1999 Update
- Fact Sheet (December 1999)
- Technical Fact Sheet
- Federal Register Notice (Text only, some tables omitted) | Federal Register Notice (PDF) (8 pp, 160 K; Print format that contains all tables) (December 22, 1999)
- 1999 Ammonia Update (PDF) (153 pp, 790 K; EPA 822-R-99-014)