Aquatic environment

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6.404 documents for Aquatic environment

- Reissuance of Nationwide Permits
The U.S. Army Corps of Engineers (Corps) is reissuing 48 of the 49 existing nationwide permits (NWPs), general conditions, and definitions, with some modifications. The Corps is also issuing two new NWPs, three new general conditions, and three new definitions. The effective date for the new and reissued NWPs will be March 19, 2012. These NWPs will expire on March 18, 2017. The NWPs will protect the aquatic environment and the public interest while effectively authorizing activities that have minimal individual and cumulative adverse effects on the aquatic environment.
- Federal Register Nbr. 77 FR 10184, February 21, 2012
- Notices
- Defense Department
- Environment: ; Dissolved Solids Standard Would Protect Water and Aquatic Life
Legislators now are considering a new total dissolved solids (TDS) standard to protect West Virginia's streams and rivers. TDS includes substances that impact the odor and taste of drinking water, deposit scale in pipes and harm aquatic life. Here in north-central West Virginia, TDS problems have recurred since 2008, when high levels in the Monongahela River fouled drinking water supplies in Pennsylvania. High TDS levels again in fall 2009 led to a toxic algae bloom and a massive fish and mussel kill in Dunkard Creek. Our state Department of Environmental Protection is concerned, and has proposed a new standard of 500 milligrams per liter (mg/L). This standard matches that of Pennsylvania, but is twice as lenient as the 250 mg/L recommended by the federal Environmental Protection Agency.
- Sunday Gazette-Mail
- February 07, 2011
- 40 CFR 230.98 - Mitigation banks and in-lieu fee programs.
... J: Compensatory Mitigation for Losses of Aquatic Resources. 230.98 - Mitigation banks and in-lieu ...
- Code of Federal Regulations - Title 40: Protection of Environment

- 40 CFR 797.1330 - Daphnid chronic toxicity test.
...Subpart B: Aquatic Guidelines. 797.1330 - Daphnid chronic toxicity t...
- Code of Federal Regulations - Title 40: Protection of Environment
- 40 CFR 230.93 - General compensatory mitigation requirements.
... J: Compensatory Mitigation for Losses of Aquatic Resources. 230.93 - General compensatory mitigati...
- Code of Federal Regulations - Title 40: Protection of Environment
- 40 CFR 797.1600 - Fish early life stage toxicity test.
...Subpart B: Aquatic Guidelines. 797.1600 - Fish early life stage toxi...
- Code of Federal Regulations - Title 40: Protection of Environment
- 40 CFR 797.1400 - Fish acute toxicity test.
...Subpart B: Aquatic Guidelines. 797.1400 - Fish acute toxicity test. ...
- Code of Federal Regulations - Title 40: Protection of Environment
- 40 CFR 230.92 - Definitions.
... J: Compensatory Mitigation for Losses of Aquatic Resources. 230.92 - Definitions. For the purposes...
- Code of Federal Regulations - Title 40: Protection of Environment
- 40 CFR 797.1930 - Mysid shrimp acute toxicity test.
...Subpart B: Aquatic Guidelines. 797.1930 - Mysid shrimp acute toxicit...
- Code of Federal Regulations - Title 40: Protection of Environment
- 40 CFR 797.1950 - Mysid shrimp chronic toxicity test.
...Subpart B: Aquatic Guidelines. 797.1950 - Mysid shrimp chronic toxic...
- Code of Federal Regulations - Title 40: Protection of Environment