B. Everett Jordan Lake is a reservoir in New Hope Valley, west of Cary and south of Durham in Chatham County, North Carolina, in the United States; the northernmost tip of the lake extends to southwest County Durham.
Part of the Lake Jordan State Recreation Area, the reservoir covers 13,940 hectares (5,640 ha) with a 180-mile (290 km) coastline at a standard water level of 216 feet (66 m) above sea level. It was developed as part of a flood control project requested by a devastating tropical storm that struck the downstream area in September 1945. Built at a native cost of US $ 146.3 million, it is owned and operated by the United States Army Engineer Corps, which is dammed and flooded with the Haw River and the New Hope River between 1973 and 1983.
Video Jordan Lake
Construction Edit
The Jordan Lake Dam (also known as the B. Everett Jordan Project and New Hope Dam) is located on 35Ã, Â ° 39? 15? N 79Ã, Â ° 4? 0? W 4Ã, mi (6 km) upstream from the mouth of the Haw River in the upper Cape Fear River drainage basin. Completed in 1974 by Nello L. Teer Company, 1,330 ft (405 m) in length and has the highest altitude of 266.5 ft (81 m) above average sea level.
During the construction of the dam, most of the area was permanently changed. Many farm families were moved as the project was developed and some roads in eastern Chatham County were overhauled or taken entirely from the commission. Some roads were never destroyed, but were left flooded. When the lake is at low water volume, many of these roads are still visible and some have even been used for emergency boat ramps.
Originally authorized in 1963 as the New Hope Lake Project, the reservoir was renamed in 1974 to commemorate B. Everett Jordan, former US Senator from North Carolina.
Maps Jordan Lake
Water supply Edit
Jordan Lake serves as the main water supply for about 250,000 (1990) people in North Carolina. The allocations made in 2002 amounted to 63 mgd. The government units allocating water from Jordan Lake are Towns of Cary and Apex (32 mgd), Chatham County (6 mgd), City of Durham (10 mgd), Town of Holly Springs (2 mgd), Town of Morrisville (3.5 mgd ), Orange County (1 mgd), Orange Water & amp; Sewer Authority (5 mgd), and Wake County - RTP South (3.5 mgd). In 2014, the NCDENR Water Resources Division is conducting rounds of applications for water allocation.
Water quality Edit
Jordan Lake was declared a sensitive nutrient water (NSW) by the North Carolina Environmental Management Commission from 1983, the year in which it was confiscated. The lake is eutrophic or hyper-eutrophic due to excessive nutritional levels.
The federal Water Supply Act requirement is triggered when the lake becomes damaged, including the need to establish load-reduction limits for point sources rather than points and impose a discharge limit.
The Jordan Lake Rules are designed to improve water quality in lakes. The rules are developed with extensive meetings, public hearings and negotiations between residents, environmental groups, local government agencies and states and other stakeholders. Rules require pollution reduction from wastewater disposal, rainwater runoff from new and existing development, agricultural applications and fertilizers.
Starting in July 2011, some NC laws have been suspended and weakened the rules, culminating in plans for deploying floating circuits from circulators in lakes intended for reducing harmful algae and excess chlorophyll. However, they proved to be ineffective in the testing program and removed in 2016.
On December 21, 2017, researchers at Duke University have found elevated levels of some perfluorinated compounds that are unregulated industrial chemicals including some that can increase the risk of cancer in Lake Jordan and drinking water treated by the city of Cary. The Cary water treatment worker, who independently confirmed the findings of Duke researchers, said city water is safe to drink. They also showed that the detected compound was still below the level of health advisory set by the US Environmental Protection Agency. Testing continues on March 8, 2018.
Garbage trash cleanup Edit
Habitat of bald eagles threatened by rubbish submerged by lakes creates a voluntary effort to clear coastlines and other sensitive areas.
In 2009, the US Army Corps of Engineers worked with local activists to establish the Clean Jordan Lake, a non-profit "lake from the lake" group. Voluntary recovery assisted by the Corps of Engineers began in 2010. Since then, Clean Jordan Lake has hosted more than 300 community service cleanups, forming the Adopt-A-Shoreline Program of 19 groups that cleans areas typically fouled three times per year, and formed the Adopt-A-Feeder Flow Program with semi-annual cleansing to prevent trash from reaching the lake. By the end of 2017, 5,600 volunteers have moved 13,500 garbage bags (enough to fill 40 large bins) and 4,300 tires. Clean Jordan Lake estimates that 80% of the waste comes from stormwater runoff and 20% of recreational use of lakes.
References Edit
External links Edit
- B. Everett Jordan Dam and Lake Corps of Engineers
- The Jordan Lake Project - US Engineer Corps
- Permissions & amp; Registration  »Jordan Lake Water Supply Allocation
- Jordan Lake Dam - Lakes Online
- US Army Engineer Corps, Wilmington District, Water Management Unit, Project Information
- Jordan Lake (1983-present) water level graphic
Source of the article : Wikipedia
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