251 North Apartment Homes

Beginning in the 19th century with increasing mining and agriculture upstream and urban sewage and runoff downstream the water quality of the Potomac River deteriorated This created conditions of severe eutrophication It is said that President Abraham Lincoln used to escape to the highlands on summer nights to escape the river's stench in the 1960s with dense green algal blooms covering the river's surface President Lyndon Johnson declared the river "a national disgrace" and set in motion a long-term effort to reduce pollution from sewage and restore the beauty and ecology of this historic river One of significant pollution control projects at the time was the expansion of the Blue Plains Advanced Wastewater Treatment Plant which serves Washington and several surrounding communities. Enactment of the 1972 Clean Water Act led to construction or expansion of additional sewage treatment plants in the Potomac watershed Controls on phosphorus one of the principal contributors to eutrophication were implemented in the 1980s through sewage plant upgrades and restrictions on phosphorus in detergents, Dulles International Airport (/'d?l?s/ DUL-iss) (IATA: IAD ICAO: KIAD FAA LID: IAD) typically referred to as Dulles Airport Washington Dulles or simply Dulles is an international airport in the eastern United States located in Loudoun and Fairfax counties in Virginia 26 miles (42 km) west of downtown Washington D.C. . .

. In surveys of U.S scholars ranking presidents conducted since the 1940s Lincoln is consistently ranked in the top three often as number one a 2004 study found that scholars in the fields of history and politics ranked Lincoln number one while legal scholars placed him second after George Washington.:264 in presidential ranking polls conducted in the United States since 1948 Lincoln has been rated at the top in the majority of polls Generally the top three presidents are rated as 1 Lincoln; 2 Washington; and 3 Franklin Delano Roosevelt although the order varies. With a limited number of professional schools established in the U.S Founders also sought advanced degrees from traditional institutions in England and Scotland such as the University of Edinburgh the University of St Andrews and the University of Glasgow. Surrender at Yorktown (1781) Map of Mexico S Augustus Mitchell Philadelphia 1847 New California is depicted with a northeastern border at the meridian leading north of the Rio Grande headwaters.