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The section requires states to identify water bodies that cannot meet water-quality standards without control of nonpoint sources. The states must then identify best management practices (BMPs) and measures for those impaired sources, along with an implementation plan. The EPA approves these plans, and if a state fails to develop a plan, the ...
Under the Federal Clean Water Act and the state's pioneering Porter-Cologne Water Quality Control Act the State Water Board has regulatory authority for protecting the water quality of nearly 1,600,000 acres (6,500 km 2) of lakes, 1,300,000 acres (5,300 km 2) of bays and estuaries, 211,000 miles (340,000 km) of rivers and streams, and about ...
The Central Valley Regional Water Quality Control Board gave a huge fine for water quality violations against a property owner in rural California. The owners failed to get the necessary permits prior to developing the land, and their growing resulted in discharges of highly erodible sediment and the unauthorized placement of filling a tributary.
Sep. 12—For years, more than 200 residents and workers in an enclave of Southeast Albuquerque potentially have been breathing contaminated air. Some of them have protections. Some don't.
California State Water Resources Control Board#Regional Water Quality Control Boards; Retrieved from "https: ...
Opacity is the measure of impenetrability to electromagnetic or other kinds of radiation, especially visible light. In radiative transfer , it describes the absorption and scattering of radiation in a medium , such as a plasma , dielectric , shielding material , glass, etc.
Opacity of the Earth's atmosphere: the radio window spans larger wavelengths. The radio window is the region of the radio spectrum that penetrate the Earth's atmosphere . Typically, the lower limit of the radio window's range has a value of about 10 MHz (λ ≈ 30 m); the best upper limit achievable from optimal terrestrial observation sites is ...
Water quality laws govern the protection of water resources for human health and the environment. Water quality laws are legal standards or requirements governing water quality, that is, the concentrations of water pollutants in some regulated volume of water. Such standards are generally expressed as levels of a specific water pollutants ...