A wetland is a distinct semi-aquatic ecosystem whose groundcovers are flooded or saturated in water , either permanently, for years or decades, or only seasonally. Flooding results in oxygen -poor ( anoxic ) processes taking place, especially in the soils . Wetlands form a transitional zone between waterbodies and dry lands , and are different from other terrestrial or aquatic ecosystems due to their vegetation 's roots having adapted to oxygen-poor waterlogged soils . They are considered among the most biologically diverse of all ecosystems, serving as habitats to a wide range of aquatic and semi-aquatic plants and animals , with often improved water quality due to plant removal of excess nutrients such as nitrates and phosphorus .
116-582: Ridgewood Reservoir is a decommissioned 19th century reservoir and freshwater wetland on the border between the New York City boroughs of Brooklyn and Queens , within what is now Highland Park . Although the reservoir was originally built to secure a reliable water supply for the City of Brooklyn , it is positioned on the Queens side of the border in the neighborhood of Glendale . The reservoir and park are bounded on
232-447: A bit in a borehole . Drilled wells are usually cased with a factory-made pipe composed of steel or plastic. Drilled wells can access water at much greater depths than dug wells. Two broad classes of well are shallow or unconfined wells completed within the uppermost saturated aquifer at that location, and deep or confined wells, sunk through an impermeable stratum into an aquifer beneath. A collector well can be constructed adjacent to
348-711: A sink or a source of carbon, depending on the specific wetland. If they function as a carbon sink, they can help with climate change mitigation . However, wetlands can also be a significant source of methane emissions due to anaerobic decomposition of soaked detritus , and some are also emitters of nitrous oxide . Humans are disturbing and damaging wetlands in many ways, including oil and gas extraction , building infrastructure, overgrazing of livestock , overfishing , alteration of wetlands including dredging and draining, nutrient pollution , and water pollution . Wetlands are more threatened by environmental degradation than any other ecosystem on Earth, according to
464-554: A backlash from local residents, environmentalists, and community organizations, who formed the Highland Park-Ridgewood Reservoir Alliance to oppose the plan. On June 26, 2008, Comptroller of New York City Bill Thompson Jr. rejected the contract for the new development, citing concerns about the environmental impact, increased truck traffic, and the vendor selection process. In 2010, the Highland Park-Ridgewood Reservoir Alliance submitted an application to
580-456: A caisson vertically below the top of the aquifer and then advancing lateral collectors out of the caisson and beneath the surface water body. Pumping from within the caisson induces infiltration of water from the surface water body into the aquifer, where it is collected by the collector well laterals and conveyed into the caisson where it can be pumped to the ground surface. Two additional broad classes of well types may be distinguished, based on
696-470: A circulation fluid to displace cuttings and cool bits during the drilling. Another form of rotary-style drilling, termed mud rotary , makes use of a specially made mud, or drilling fluid, which is constantly being altered during the drill so that it can consistently create enough hydraulic pressure to hold the side walls of the bore hole open, regardless of the presence of a casing in the well. Typically, boreholes drilled into solid rock are not cased until after
812-435: A confined space, it displaces oxygen, reducing oxygen concentration to a level low enough to pose a threat to humans and other aerobic organisms but still high enough for a risk of spontaneous or externally caused explosion. This potential for explosion is what poses such a danger in regards to the drilling and placement of water wells. Low levels of methane in drinking water are not considered toxic. When methane seeps into
928-676: A divination text of the Western Zhou dynasty (1046 -771 BC), contains an entry describing how the ancient Chinese maintained their wells and protected their sources of water. A well excavated at the Hemedu excavation site was believed to have been built during the neolithic era. The well was cased by four rows of logs with a square frame attached to them at the top of the well. 60 additional tile wells southwest of Beijing are also believed to have been built around 600 BC for drinking and irrigation. In Egypt , shadoofs and sakias are used. The sakia
1044-550: A drilling action. Unlike rotary drilling, cable tool drilling requires the drilling action to be stopped so that the bore hole can be bailed or emptied of drilled cuttings. Cable tool drilling rigs are rare as they tend to be 10x slower to drill through materials compared to similar diameter rotary air or rotary mud equipped rigs. Drilled wells are usually cased with a factory-made pipe, typically steel (in air rotary or cable tool drilling) or plastic / PVC (in mud rotary wells, also present in wells drilled into solid rock). The casing
1160-402: A frequency and duration to support, and that under normal circumstances do support, a prevalence of vegetation typically adapted for life in saturated soil conditions. Wetlands generally included swamps, marshes, bogs, and similar areas.' For each of these definitions and others, regardless of the purpose, hydrology is emphasized (shallow waters, water-logged soils). The soil characteristics and
1276-510: A freshwater lake or stream with water percolating through the intervening material. The site of a well can be selected by a hydrogeologist , or groundwater surveyor. Water may be pumped or hand drawn. Impurities from the surface can easily reach shallow sources and contamination of the supply by pathogens or chemical contaminants needs to be avoided. Well water typically contains more minerals in solution than surface water and may require treatment before being potable. Soil salination can occur as
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#17328449235741392-743: A group of synthetic organofluorine chemical compounds that have multiple fluorine atoms attached to an alkyl chain. PFAS are a group of "forever chemicals" that spread very quickly and very far in ground water polluting it permanently. Water wells near certain airports where any form fire fighting or training activities occurred up to 2010 are likely to be contaminated by PFAS. A study concluded that of ~39 million groundwater wells 6-20% are at high risk of running dry if local groundwater levels decline by less than five meters, or – as with many areas and possibly more than half of major aquifers – continue to decline. Springs and wells have had cultural significance since prehistoric times, leading to
1508-404: A natural state, as it is now protected under the 1975 New York Freshwater Wetlands Act. 40°41′20″N 73°53′13″W / 40.68889°N 73.88694°W / 40.68889; -73.88694 Wetland Wetlands exist on every continent , except Antarctica . The water in wetlands is either freshwater , brackish or saltwater . The main types of wetland are defined based on
1624-1248: A polar climate, wetland temperatures can be as low as −50 °C (−58 °F). Peatlands in arctic and subarctic regions insulate the permafrost , thus delaying or preventing its thawing during summer, as well as inducing its formation. The amount of precipitation a wetland receives varies widely according to its area. Wetlands in Wales , Scotland , and western Ireland typically receive about 1,500 mm (59 in) per year. In some places in Southeast Asia , where heavy rains occur, they can receive up to 10,000 mm (390 in). In some drier regions, wetlands exist where as little as 180 mm (7.1 in) precipitation occurs each year. Temporal variation: Surface flow may occur in some segments, with subsurface flow in other segments. Wetlands vary widely due to local and regional differences in topography , hydrology , vegetation , and other factors, including human involvement. Other important factors include fertility, natural disturbance, competition, herbivory , burial and salinity. When peat accumulates, bogs and fens arise. The most important factor producing wetlands
1740-540: A portion of the overall water cycle, which also includes atmospheric water (precipitation) and groundwater . Many wetlands are directly linked to groundwater and they can be a crucial regulator of both the quantity and quality of water found below the ground. Wetlands that have permeable substrates like limestone or occur in areas with highly variable and fluctuating water tables have especially important roles in groundwater replenishment or water recharge. Substrates that are porous allow water to filter down through
1856-526: A project that the City Parks Department claimed was necessary to eliminate the risk of flooding. The City argued that unless the culverts were built, the State of New York would issue fines since the reservoir would allegedly be a flooding hazard, according to its classification as a Class C "High Hazard" dam. However, local activists argued that because the reservoir no longer impounds water, it does not pose
1972-418: A protective barrier to coastal shoreline. Mangroves stabilize the coastal zone from the interior and will migrate with the shoreline to remain adjacent to the boundary of the water. The main conservation benefit these systems have against storms and storm surges is the ability to reduce the speed and height of waves and floodwaters. Well#Driven wells A well is an excavation or structure created on
2088-430: A pump. The water often comes from an aquifer or groundwater, and can be easily deepened, which may be necessary if the ground water level drops, by telescoping the lining further down into the aquifer. The yield of existing hand dug wells may be improved by deepening or introducing vertical tunnels or perforated pipes. Drawbacks to hand-dug wells are numerous. It can be impractical to hand dig wells in areas where hard rock
2204-482: A risk of flooding and should instead be classified as a Class D "Negligible or No Hazard" dam, rendering the construction of culverts unnecessary. Environmentalists also argued that building the culverts would violate New York State Environmental Conservation Law by adversely impacting a freshwater wetland habitat. This work was scheduled to begin in August 2014 but was put on hold after pressure from activists. In March 2017,
2320-433: A screening device, filter pack, slotted casing, or open bore hole is left to allow the flow of water into the well. Constructed screens are typically used in unconsolidated formations (sands, gravels, etc.), allowing water and a percentage of the formation to pass through the screen. Allowing some material to pass through creates a large area filter out of the rest of the formation, as the amount of material present to pass into
2436-484: A sediment of a dry watercourse to the qanats of Iran, and the stepwells and sakiehs of India. Placing a lining in the well shaft helps create stability, and linings of wood or wickerwork date back at least as far as the Iron Age . Wells have traditionally been sunk by hand digging, as is still the case in rural areas of the developing world. These wells are inexpensive and low-tech as they use mostly manual labour, and
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#17328449235742552-406: A segmented steel drilling string, typically made up of 3m (10ft), 6 m (20 ft) to 8m (26ft) sections of steel tubing that are threaded together, with a bit or other drilling device at the bottom end. Some rotary drilling machines are designed to install (by driving or drilling) a steel casing into the well in conjunction with the drilling of the actual bore hole. Air and/or water is used as
2668-422: A strong influence on wetland water chemistry, particularly in coastal wetlands and in arid and semiarid regions with large precipitation deficits. Natural salinity is regulated by interactions between ground and surface water, which may be influenced by human activity. Carbon is the major nutrient cycled within wetlands. Most nutrients, such as sulfur , phosphorus , carbon , and nitrogen are found within
2784-410: A unique kind of wetland where lush plant growth and slow decay of dead plants (under anoxic conditions) results in organic peat accumulating; bogs, fens, and mires are different names for peatlands. Variations of names for wetland systems: Some wetlands have localized names unique to a region such as the prairie potholes of North America's northern plain, pocosins , Carolina bays and baygalls of
2900-420: A variety of tools including electro-seismic surveying, any available information from nearby wells, geologic maps, and sometimes geophysical imaging . These professionals provide advice that is almost as accurate a driller who has experience and knowledge of nearby wells/bores and the most suitable drilling technique based on the expected target depth. Shallow pumping wells can often supply drinking water at
3016-567: A very important source of potable water in some rural developing areas, where they are routinely dug and used today. Their indispensability has produced a number of literary references, literal and figurative, including the reference to the incident of Jesus meeting a woman at Jacob 's well ( John 4:6) in the Bible and the " Ding Dong Bell " nursery rhyme about a cat in a well. Hand-dug wells are excavations with diameters large enough to accommodate one or more people with shovels digging down to below
3132-608: A very low cost. However, impurities from the surface easily reach shallow sources, which leads to a greater risk of contamination for these wells compared to deeper wells. Contaminated wells can lead to the spread of various waterborne diseases . Dug and driven wells are relatively easy to contaminate; for instance, most dug wells are unreliable in the majority of the United States. Some research has found that, in cold regions, changes in river flow and flooding caused by extreme rainfall or snowmelt can degrade well water quality. Most of
3248-648: A water supply, it is commonly referred to as "methane migration". This can be caused by old natural gas wells near water well systems becoming abandoned and no longer monitored. Lately, however, the described wells/pumps are no longer very efficient and can be replaced by either handpumps or treadle pumps . Another alternative is the use of self-dug wells, electrical deep-well pumps (for higher depths). Appropriate technology organizations as Practical Action are now supplying information on how to build/set-up ( DIY ) handpumps and treadle pumps in practice. Per- and polyfluoroalkyl substances ( PFAS or PFASs ) are
3364-452: A wetland is "an ecosystem that arises when inundation by water produces soils dominated by anaerobic and aerobic processes, which, in turn, forces the biota, particularly rooted plants, to adapt to flooding". Sometimes a precise legal definition of a wetland is required. The definition used for regulation by the United States government is: 'The term "wetlands" means those areas that are inundated or saturated by surface or ground water at
3480-422: A wetland system includes its plants ( flora ) and animals ( fauna ) and microbes (bacteria, fungi). The most important factor is the wetland's duration of flooding. Other important factors include fertility and salinity of the water or soils. The chemistry of water flowing into wetlands depends on the source of water, the geological material that it flows through and the nutrients discharged from organic matter in
3596-403: A wetland) affects hydro-periods (temporal fluctuations in water levels) by controlling the water balance and water storage within a wetland. Landscape characteristics control wetland hydrology and water chemistry. The O 2 and CO 2 concentrations of water depend upon temperature , atmospheric pressure and mixing with the air (from winds or water flows). Water chemistry within wetlands
Ridgewood Reservoir - Misplaced Pages Continue
3712-558: A whole. To replace these wetland ecosystem services , enormous amounts of money would need to be spent on water purification plants, dams, levees, and other hard infrastructure, and many of the services are impossible to replace. Floodplains and closed-depression wetlands can provide the functions of storage reservoirs and flood protection. The wetland system of floodplains is formed from major rivers downstream from their headwaters . "The floodplains of major rivers act as natural storage reservoirs, enabling excess water to spread out over
3828-577: A wide area, which reduces its depth and speed. Wetlands close to the headwaters of streams and rivers can slow down rainwater runoff and spring snowmelt so that it does not run straight off the land into water courses. This can help prevent sudden, damaging floods downstream." Notable river systems that produce wide floodplains include the Nile River , the Niger river inland delta, the Zambezi River flood plain,
3944-693: Is a common problem with groundwater. Nitrates from sewage , sewage sludge or fertilizer are a particular problem for babies and young children. Pollutant chemicals include pesticides and volatile organic compounds from gasoline , dry-cleaning , the fuel additive methyl tert-butyl ether (MTBE), and perchlorate from rocket fuel, airbag inflators, and other artificial and natural sources. Several minerals are also contaminants, including lead leached from brass fittings or old lead pipes, chromium VI from electroplating and other sources, naturally occurring arsenic , radon , and uranium —all of which can cause cancer—and naturally occurring fluoride , which
4060-399: Is caused when the water table of the soil drops over time and salt begins to accumulate. In turn, the increased amount of salt begins to dry the soil out. The increased level of salt in the soil can result in the degradation of soil and can be very harmful to vegetation. Methane , an asphyxiant, is a chemical compound that is the main component of natural gas. When methane is introduced into
4176-437: Is constructed by welding, either chemically or thermally, segments of casing together. If the casing is installed during the drilling, most drills will drive the casing into the ground as the bore hole advances, while some newer machines will actually allow for the casing to be rotated and drilled into the formation in a similar manner as the bit advancing just below. PVC or plastic is typically solvent welded and then lowered into
4292-455: Is desirable in low quantities to prevent tooth decay , but can cause dental fluorosis in higher concentrations. Some chemicals are commonly present in water wells at levels that are not toxic, but can cause other problems. Calcium and magnesium cause what is known as hard water , which can precipitate and clog pipes or burn out water heaters. Iron and manganese can appear as dark flecks that stain clothing and plumbing, and can promote
4408-440: Is determined by the pH , salinity , nutrients, conductivity , soil composition, hardness , and the sources of water. Water chemistry varies across landscapes and climatic regions. Wetlands are generally minerotrophic (waters contain dissolved materials from soils) with the exception of ombrotrophic bogs that are fed only by water from precipitation. Because bogs receive most of their water from precipitation and humidity from
4524-473: Is drilled to a predetermined depth or to a confining formation (clay or bedrock, for example), and then a smaller hole for the well is completed from that point forward. The well is typically cased from the surface down into the smaller hole with a casing that is the same diameter as that hole. The annular space between the large bore hole and the smaller casing is filled with bentonite clay , concrete, or other sealant material. This creates an impermeable seal from
4640-465: Is home to a wide range of flora and fauna, including 156 species of birds, 175 plant species, and numerous species of insects. The evolving fresh-water site has become an important nearby oasis on the Atlantic Flyway and is a common destination for birdwatchers. The reservoir's distinct ecological setting has also made it a frequent destination for field trips and walking tours. Currently, the pond in
4756-412: Is hydrology, or flooding . The duration of flooding or prolonged soil saturation by groundwater determines whether the resulting wetland has aquatic, marsh or swamp vegetation . Other important factors include soil fertility, natural disturbance, competition, herbivory , burial, and salinity. When peat from dead plants accumulates, bogs and fens develop. Wetland hydrology is associated with
Ridgewood Reservoir - Misplaced Pages Continue
4872-649: Is much more efficient, as it can bring up water from a depth of 10 metres (versus the 3 metres of the shadoof). The sakia is the Egyptian version of the noria . Some of the world's oldest known wells, located in Cyprus, date to 7000–8,500 BC. Two wells from the Neolithic period, around 6500 BC, have been discovered in Israel. One is in Atlit, on the northern coast of Israel, and the other is in
4988-523: Is now part of Glendale) and was sealed by puddling with clay. The walls were faced with fieldstone and mortar. Ground was broken for the reservoir's construction on July 11, 1856, and the reservoir's water was initially raised on November 18, 1858. In 1862, the water supply for the reservoir consisted of six dammed streams in what is now Queens and Nassau Counties: Jamaica Stream ( Baisley Pond ), Simonson's Stream, Clear Stream, Valley Stream, Pine's Stream, and Hempstead Stream ( Hempstead Lake ). This water
5104-600: Is present, and they can be time-consuming to dig and line even in favourable areas. Because they exploit shallow aquifers, the well may be susceptible to yield fluctuations and possible contamination from surface water, including sewage. Hand dug well construction generally requires the use of a well trained construction team, and the capital investment for equipment such as concrete ring moulds, heavy lifting equipment, well shaft formwork, motorized de-watering pumps, and fuel can be large for people in developing countries. Construction of hand dug wells can be dangerous due to collapse of
5220-477: Is simply hammered into the ground, usually with a tripod and driver , with pipe sections added as needed. A driver is a weighted pipe that slides over the pipe being driven and is repeatedly dropped on it. When groundwater is encountered, the well is washed of sediment and a pump installed. Drilled wells are constructed using various types of drilling machines, such as top-head rotary, table rotary, or cable tool, which all use drilling stems that rotate to cut into
5336-451: Is the only place in the world where both crocodiles and alligators coexist. The saltwater crocodile inhabits estuaries and mangroves. Snapping turtles also inhabit wetlands. Birds , particularly waterfowl and waders use wetlands extensively. Mammals of wetlands include numerous small and medium-sized species such as voles , bats , muskrats and platypus in addition to large herbivorous and apex predator species such as
5452-545: Is usually saturated with water". More precisely, wetlands are areas where "water covers the soil , or is present either at or near the surface of the soil all year or for varying periods of time during the year, including during the growing season". A patch of land that develops pools of water after a rain storm would not necessarily be considered a "wetland", even though the land is wet. Wetlands have unique characteristics: they are generally distinguished from other water bodies or landforms based on their water level and on
5568-560: The Cairo Citadel at 280 feet (85 m) deep and the Pozzo di San Patrizio (St. Patrick's Well) built in 1527 in Orvieto, Italy , at 61 metres (200 ft) deep by 13 metres (43 ft) wide are both larger by volume. Driven wells may be very simply created in unconsolidated material with a well hole structure , which consists of a hardened drive point and a screen (perforated pipe). The point
5684-492: The Millennium Ecosystem Assessment from 2005. Methods exist for assessing wetland ecological health . These methods have contributed to wetland conservation by raising public awareness of the functions that wetlands can provide. Since 1971, work under an international treaty seeks to identify and protect " wetlands of international importance ." A simplified definition of wetland is "an area of land that
5800-536: The New York City Parks Department and New York State DEC each proposed plans that would have breached the reservoir's basins and disrupted the wetland ecosystem. These plans were dropped after opposition from local community groups who sought to preserve the reservoir's natural setting. In 2018, the reservoir was listed on the National Register of Historic Places and was officially designated by
5916-584: The New York State DEC requesting that the Ridgewood Reservoir be classified as a wetland. In 2014, community members learned that the NYC Parks Department was planning to construct culverts to breach the three basins. This would have destroyed the reservoir's natural ecosystem. The plans illustrated the design and construction of culverts large enough to accommodate trucks and were part of
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#17328449235746032-666: The Pantanal in South America, and the Sundarbans in the Ganges - Brahmaputra delta. Wetlands contribute many ecosystem services that benefit people. These include for example water purification , stabilization of shorelines, storm protection and flood control . In addition, wetlands also process and condense carbon (in processes called carbon fixation and sequestration ), and other nutrients and water pollutants . Wetlands can act as
6148-444: The atmosphere , their water usually has low mineral ionic composition. In contrast, wetlands fed by groundwater or tides have a higher concentration of dissolved nutrients and minerals. Fen peatlands receive water both from precipitation and ground water in varying amounts so their water chemistry ranges from acidic with low levels of dissolved minerals to alkaline with high accumulation of calcium and magnesium . Salinity has
6264-508: The bacteria , viruses , parasites , and fungi that contaminate well water comes from fecal material from humans and other animals. Common bacterial contaminants include E. coli , Salmonella , Shigella , and Campylobacter jejuni . Common viral contaminants include norovirus , sapovirus , rotavirus , enteroviruses , and hepatitis A and E . Parasites include Giardia lamblia , Cryptosporidium , Cyclospora cayetanensis , and microsporidia . Chemical contamination
6380-576: The beavers , coypu , swamp rabbit , Florida panther , jaguar , and moose . Wetlands attract many mammals due to abundant seeds, berries, and other vegetation as food for herbivores, as well as abundant populations of invertebrates, small reptiles and amphibians as prey for predators. Invertebrates of wetlands include aquatic insects such as dragonflies , aquatic bugs and beetles , midges, mosquitos , crustaceans such as crabs, crayfish, shrimps, microcrustaceans, mollusks like clams, mussels, snails and worms. Invertebrates comprise more than half of
6496-710: The filtration of the contaminants of concern, and additional protection may be garnered by installing well-casing screens only at depths where contamination is not present. Wellwater for personal use is often filtered with reverse osmosis water processors; this process can remove very small particles. A simple, effective way of killing microorganisms is to bring the water to a full boil for one to three minutes, depending on location. A household well contaminated by microorganisms can initially be treated by shock chlorination using bleach, generating concentrations hundreds of times greater than found in community water systems; however, this will not fix any structural problems that led to
6612-444: The water table . The excavation is braced horizontally to avoid landslide or erosion endangering the people digging. They can be lined with stone or brick; extending this lining upwards above the ground surface to form a wall around the well serves to reduce both contamination and accidental falls into the well. A more modern method called caissoning uses reinforced concrete or plain concrete pre-cast well rings that are lowered into
6728-621: The Brooklyn Water Works system was repeatedly expanded by adding wells and collection reservoirs, extending the conduit farther east, and adding pumps. The Ridgewood Reservoir's third basin was completed in 1891. Farmers in southern Queens County complained that Brooklyn's thirst was lowering the water table . Late in the century, the conduit was extended to a large pumping station in Massapequa , some 30 miles (48 km) away. Efforts to extend it farther were thwarted by legislation protecting
6844-626: The Catskill system. The reservoir was last used in a drought in the 1960s. During the 1970s the reservoir was the site of illegal swimming and a number of drownings. The reservoir was finally decommissioned and drained in 1989. Some of the Nassau County pumping stations including the one at Milburn (now Baldwin ) survived into the 21st century as ruins. Valley Stream State Park , Hempstead Lake State Park , and other South Shore lakes and parks were originally Brooklyn Water Works reservoirs. In 2004,
6960-578: The City of Brooklyn for ten days at that time. The Ridgewood Reservoir's innovative use of driven wells was notable for the time; an 1886 Scientific American article states that the reservoir's system of driven wells “has attracted widespread attention because of the originality and boldness of the plans and the perfect success attained.” In the late nineteenth century, Brooklyn was the largest American city whose water supply system relied on driven wells. Other large American cities chose to adopt this technology after
7076-712: The Jezreel Valley. Wells for other purposes came along much later, historically. The first recorded salt well was dug in the Sichuan province of China around 2,250 years ago. This was the first time that ancient water well technology was applied successfully for the exploitation of salt, and marked the beginning of Sichuan's salt drilling industry. The earliest known oil wells were also drilled in China, in 347 CE. These wells had depths of up to about 240 metres (790 ft) and were drilled using bits attached to bamboo poles. The oil
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#17328449235747192-515: The NYS DEC reclassified the Ridgewood Reservoir as a Class A "Low Hazard" dam, such that the reservoir's basins would no longer be required to be breached to address flooding risk. In February 2018, the Ridgewood Reservoir was officially designated as a Class I freshwater wetland by the New York State DEC. The wetland designation ensures that the Ridgewood Reservoir will be permanently preserved in
7308-451: The New York State DEC as a Class I freshwater wetland, ensuring its preservation as a natural space. Ridgewood Reservoir was built by the City of Brooklyn , New York , which was rapidly outgrowing its local water supplies. In 1851 the City thought it was failing to attract business firms that would have moved to Brooklyn if it had as reliable a water source as New York City's Croton Aqueduct . Various sources were proposed. The Croton River
7424-619: The Okavango River inland delta, the Kafue River flood plain, the Lake Bangweulu flood plain (Africa), Mississippi River (US), Amazon River (South America), Yangtze River (China), Danube River (Central Europe) and Murray-Darling River (Australia). Groundwater replenishment can be achieved for example by marsh , swamp , and subterranean karst and cave hydrological systems. The surface water visibly seen in wetlands only represents
7540-479: The Ridgewood Reservoir as a Critical Environmental Area, citing the reservoir's status as a "naturalized area that is unique within New York City and serves as an important ecological, historic, and public recreation resource." In October 2007, New York City Parks Commissioner Adrian Benepe unveiled a plan to breach one of the reservoir basins and clear 20 acres (81,000 m) for new ball fields. This resulted in
7656-509: The Ridgewood Reservoir as well as the final specifications for the Brooklyn Water Works system were designed by Brooklyn civil engineer Samuel McElroy. This original design called for three basins, but engineer James P. Kirkwood later altered the designs and instead built a double basin. The new double reservoir was built in Snediker's Cornfield on a hilltop near Evergreen Cemetery in what was once part of Ridgewood, Queens (this section of Queens
7772-511: The Southeastern US, mallines of Argentina, Mediterranean seasonal ponds of Europe and California, turloughs of Ireland, billabongs of Australia, among many others. Wetlands are found throughout the world in different climates. Temperatures vary greatly depending on the location of the wetland. Many of the world's wetlands are in the temperate zones , midway between the North or South Poles and
7888-494: The US, the best known classifications are the Cowardin classification system and the hydrogeomorphic (HGM) classification system. The Cowardin system includes five main types of wetlands: marine (ocean-associated), estuarine (mixed ocean- and river-associated), riverine (within river channels), lacustrine (lake-associated) and palustrine (inland nontidal habitats). Peatlands are
8004-610: The United States' commercial fish and shellfish stocks depend solely on estuaries to survive. Amphibians such as frogs and salamanders need both terrestrial and aquatic habitats in which to reproduce and feed. Because amphibians often inhabit depressional wetlands like prairie potholes and Carolina bays, the connectivity among these isolated wetlands is an important control of regional populations. While tadpoles feed on algae, adult frogs forage on insects. Frogs are sometimes used as an indicator of ecosystem health because their thin skin permits absorption of nutrients and toxins from
8120-461: The casing during construction and filling the casing annulus with an appropriate sealing material. The sealing material (grout) should be placed from immediately above the production zone back to surface, because, in the absence of a correctly constructed casing seal, contaminated fluid can travel into the well through the casing annulus. Centering devices are important (usually one per length of casing or at maximum intervals of 9 m) to ensure that
8236-699: The coast near modern Haifa in Israel . Wood-lined wells are known from the early Neolithic Linear Pottery culture , for example in Ostrov, Czech Republic, dated 5265 BC, Kückhoven (an outlying centre of Erkelenz ), dated 5300 BC, and Eythra in Schletz (an outlying centre of Asparn an der Zaya ) in Austria , dated 5200 BC. The neolithic Chinese discovered and made extensive use of deep drilled groundwater for drinking. The Chinese text The Book of Changes , originally
8352-480: The contamination and generally requires some expertise and testing for effective application. After the filtration process, it is common to implement an ultraviolet (UV) system to kill pathogens in the water. UV light affects the DNA of the pathogen by UV-C photons breaking through the cell wall. UV disinfection has been gaining popularity in the past decades as it is a chemical-free method of water treatment. A risk with
8468-522: The design and installation of private and municipal septic systems take all these factors into account so that nearby drinking water sources are protected. Education of the general population in society also plays an important role in protecting drinking water. Cleanup of contaminated groundwater tends to be very costly. Effective remediation of groundwater is generally very difficult. Contamination of groundwater from surface and subsurface sources can usually be dramatically reduced by correctly centering
8584-530: The dominant plants and the source of the water. For example, marshes are wetlands dominated by emergent herbaceous vegetation such as reeds , cattails and sedges . Swamps are dominated by woody vegetation such as trees and shrubs (although reed swamps in Europe are dominated by reeds, not trees). Mangrove forest are wetlands with mangroves , halophytic woody plants that have evolved to tolerate salty water . Examples of wetlands classified by
8700-424: The drilled well, vertically stacked with their ends nested and either glued or splined together. The sections of casing are usually 6 metres (20 ft) or more in length, and 4 to 12 in (10 to 30 cm) in diameter, depending on the intended use of the well and local groundwater conditions. Surface contamination of wells in the United States is typically controlled by the use of a surface seal . A large hole
8816-434: The drilling process is completed, regardless of the machinery used. The oldest form of drilling machinery is the cable tool , still used today. Specifically designed to raise and lower a bit into the bore hole, the spudding of the drill causes the bit to be raised and dropped onto the bottom of the hole, and the design of the cable causes the bit to twist at approximately 1 ⁄ 4 revolution per drop, thereby creating
8932-497: The earth by digging , driving, or drilling to access liquid resources, usually water . The oldest and most common kind of well is a water well, to access groundwater in underground aquifers . The well water is drawn up by a pump , or using containers, such as buckets that are raised mechanically or by hand. Water can also be injected back into the aquifer through the well. Wells were first constructed at least eight thousand years ago and historically vary in construction from
9048-622: The equator. In these zones, summers are warm and winters are cold, but temperatures are not extreme. In subtropical zone wetlands, such as along the Gulf of Mexico , average temperatures might be 11 °C (52 °F). Wetlands in the tropics are subjected to much higher temperatures for a large portion of the year. Temperatures for wetlands on the Arabian Peninsula can exceed 50 °C (122 °F) and these habitats would therefore be subject to rapid evaporation. In northeastern Siberia , which has
9164-494: The following areas: According to the Ramsar Convention: The economic worth of the ecosystem services provided to society by intact, naturally functioning wetlands is frequently much greater than the perceived benefits of converting them to 'more valuable' intensive land use – particularly as the profits from unsustainable use often go to relatively few individuals or corporations, rather than being shared by society as
9280-513: The formation, thus the term "drilling." Drilled wells can be excavated by simple hand drilling methods (augering, sludging, jetting, driving, hand percussion) or machine drilling (auger, rotary, percussion, down the hole hammer). Deep rock rotary drilling method is most common. Rotary can be used in 90% of formation types (consolidated). Drilled wells can get water from a much deeper level than dug wells can − often down to several hundred metres. Drilled wells with electric pumps are used throughout
9396-427: The grouted annular space is of even thickness. Upon the construction of a new test well, it is considered best practice to invest in a complete battery of chemical and biological tests on the well water in question. Point-of-use treatment is available for individual properties and treatment plants are often constructed for municipal water supplies that suffer from contamination. Most of these treatment methods involve
9512-694: The growth of iron and manganese bacteria that can form slimy black colonies that clog pipes. The quality of the well water can be significantly increased by lining the well, sealing the well head, fitting a self-priming hand pump, constructing an apron, ensuring the area is kept clean and free from stagnant water and animals, moving sources of contamination ( pit latrines , garbage pits, on-site sewer systems ) and carrying out hygiene education. The well should be cleaned with 1% chlorine solution after construction and periodically every 6 months. Well holes should be covered to prevent loose debris, animals, animal excrement, and wind-blown foreign matter from falling into
9628-416: The hole and decomposing. The cover should be able to be in place at all times, including when drawing water from the well. A suspended roof over an open hole helps to some degree, but ideally the cover should be tight fitting and fully enclosing, with only a screened air vent. Minimum distances and soil percolation requirements between sewage disposal sites and water wells need to be observed. Rules regarding
9744-635: The hole. A well-digging team digs under a cutting ring and the well column slowly sinks into the aquifer , whilst protecting the team from collapse of the well bore . Hand-dug wells are inexpensive and low tech (compared to drilling) and they use mostly manual labour to access groundwater in rural locations of developing countries. They may be built with a high degree of community participation, or by local entrepreneurs who specialize in hand-dug wells. They have been successfully excavated to 60 metres (200 ft). They have low operational and maintenance costs, in part because water can be extracted by hand, without
9860-464: The interface between truly terrestrial ecosystems and aquatic systems, making them inherently different from each other, yet highly dependent on both." In environmental decision-making, there are subsets of definitions that are agreed upon to make regulatory and policy decisions. Under the Ramsar international wetland conservation treaty , wetlands are defined as follows: An ecological definition of
9976-462: The known animal species in wetlands, and are considered the primary food web link between plants and higher animals (such as fish and birds). Depending on a wetland's geographic and topographic location, the functions it performs can support multiple ecosystem services , values, or benefits. United Nations Millennium Ecosystem Assessment and Ramsar Convention described wetlands as a whole to be of biosphere significance and societal importance in
10092-457: The middle basin of the reservoir is being overgrown by invasive weeds that belong to the genus Phragmites . Left unchecked, the Phragmites would outcompete the reservoir's natural plant species and fill in the pond. Community efforts to control the reservoir's Phragmites population, via underwater weed-cutting and root removal, are ongoing. In January 2019, the NYC Parks Department designated
10208-645: The north by the Jackie Robinson Parkway , on the south by Highland Boulevard, on the west by Vermont Place and on the east by Cypress Hills National Cemetery . The reservoir was named after the Ridgewood Ponds in Nassau County , which provided the reservoir's eastern water source. Consequently, the neighborhood north of the Reservoir became known as Ridgewood . Following decommissioning and abandonment,
10324-406: The placement of water wells is soil salination which occurs when the water table of the soil begins to drop and salt begins to accumulate as the soil begins to dry out. Another environmental problem that is very prevalent in water well drilling is the potential for methane to seep through. The potential for soil salination is a large risk when choosing the placement of water wells. Soil salination
10440-832: The plants and animals controlled by the wetland hydrology are often additional components of the definitions. Wetlands can be tidal (inundated by tides) or non-tidal. The water in wetlands is either freshwater , brackish , saline , or alkaline . There are four main kinds of wetlands – marsh , swamp , bog , and fen (bogs and fens being types of peatlands or mires ). Some experts also recognize wet meadows and aquatic ecosystems as additional wetland types. Sub-types include mangrove forests , carrs , pocosins , floodplains , peatlands, vernal pools , sinks , and many others. The following three groups are used within Australia to classify wetland by type: Marine and coastal zone wetlands, inland wetlands and human-made wetlands. In
10556-475: The reservoir naturally became a lush freshwater wetland. This ecosystem attracted a wide variety of fauna and flora, including some threatened and endangered species such as the Short-eared Owl and Pied-billed Grebe . The bicycling trail around the reservoir perimeter became part of the 40-mile (64 km) Brooklyn-Queens Greenway . Between 2004 and 2017, the Ridgewood Reservoir's future was in question, as
10672-488: The reservoir was officially turned over to the Department of Parks for more extensive integration into Highland Park. Since the Ridgewood Reservoir was decommissioned, it has naturally become reforested and has developed into a thriving wetland ecosystem. It currently contains a wide range of natural environments, including woodlands, swamp, standing water wetlands, coastal swamp forest, bog, and open grassy area. The reservoir
10788-478: The screen and the borehole or casing. This allows the water to be filtered of unwanted materials before entering the well and pumping zone. There are two broad classes of drilled-well types, based on the type of aquifer the well is in: A special type of water well may be constructed adjacent to freshwater lakes or streams. Commonly called a collector well but sometimes referred to by the trade name Ranney well or Ranney collector , this type of well involves sinking
10904-429: The soil and underlying rock into aquifers which are the source of much of the world's drinking water . Wetlands can also act as recharge areas when the surrounding water table is low and as a discharge zone when it is high. Mangroves , coral reefs , salt marsh can help with shoreline stabilization and storm protection. Tidal and inter-tidal wetland systems protect and stabilize coastal zones. Coral reefs provide
11020-537: The soil of wetlands. Anaerobic and aerobic respiration in the soil influences the nutrient cycling of carbon, hydrogen, oxygen, and nitrogen, and the solubility of phosphorus thus contributing to the chemical variations in its water. Wetlands with low pH and saline conductivity may reflect the presence of acid sulfates and wetlands with average salinity levels can be heavily influenced by calcium or magnesium. Biogeochemical processes in wetlands are determined by soils with low redox potential. The life forms of
11136-412: The soils and plants at higher elevations. Plants and animals may vary within a wetland seasonally or in response to flood regimes. There are four main groups of hydrophytes that are found in wetland systems throughout the world. Submerged wetland vegetation can grow in saline and fresh-water conditions. Some species have underwater flowers, while others have long stems to allow the flowers to reach
11252-515: The sources of water include tidal wetlands , where the water source is ocean tides ); estuaries , water source is mixed tidal and river waters; floodplains , water source is excess water from overflowed rivers or lakes; and bogs and vernal ponds , water source is rainfall or meltwater . The world's largest wetlands include the Amazon River basin , the West Siberian Plain ,
11368-435: The south and west. In 1898, Brooklyn merged with the City of Greater New York , thus gaining access to the superior New York City water supply system . Ridgewood Reservoir was expensive to operate because of the need for pumping and was slowly made obsolete by expansion of New York City's Catskill and Delaware water systems. Ridgewood Reservoir became a backup reservoir in 1959 with the third basin being filled with water from
11484-406: The spatial and temporal dispersion, flow, and physio-chemical attributes of surface and ground waters. Sources of hydrological flows into wetlands are predominantly precipitation , surface water (saltwater or freshwater), and groundwater. Water flows out of wetlands by evapotranspiration , surface flows and tides , and subsurface water outflow. Hydrodynamics (the movement of water through and from
11600-487: The structure can be lined with brick or stone as the excavation proceeds. A more modern method called caissoning uses pre-cast reinforced concrete well rings that are lowered into the hole. Driven wells can be created in unconsolidated material with a well hole structure, which consists of a hardened drive point and a screen of perforated pipe, after which a pump is installed to collect the water. Deeper wells can be excavated by hand drilling methods or machine drilling, using
11716-452: The success of the Ridgewood Reservoir's driven well system. By 1900, Lowell, Massachusetts and Newark, New Jersey —two of the nation's most important industrial centers at the time—had both followed Brooklyn's example by installing their own municipal water systems that used driven wells. At this time, Brooklyn obtained over 45 million gallons of water per day from driven wells at the Ridgewood Reservoir and other sites. In subsequent decades
11832-709: The surface of the water. When trees and shrubs comprise much of the plant cover in saturated soils, those areas in most cases are called swamps . The upland boundary of swamps is determined partly by water levels. This can be affected by dams Some swamps can be dominated by a single species, such as silver maple swamps around the Great Lakes . Others, like those of the Amazon basin , have large numbers of different tree species. Other examples include cypress ( Taxodium ) and mangrove swamps. Many species of fish are highly dependent on wetland ecosystems. Seventy-five percent of
11948-413: The surface to the next confining layer that keeps contaminants from traveling down the outer sidewalls of the casing or borehole and into the aquifer . In addition, wells are typically capped with either an engineered well cap or seal that vents air through a screen into the well, but keeps insects, small animals, and unauthorized persons from accessing the well. At the bottom of wells, based on formation,
12064-490: The surface. Submerged species provide a food source for native fauna, habitat for invertebrates, and also possess filtration capabilities. Examples include seagrasses and eelgrass . Floating water plants or floating vegetation are usually small, like those in the Lemnoideae subfamily (duckweeds). Emergent vegetation like the cattails ( Typha spp.), sedges ( Carex spp.) and arrow arum ( Peltandra virginica ) rise above
12180-457: The surrounding environment resulting in increased extinction rates in unfavorable and polluted environmental conditions. Reptiles such as snakes , lizards , turtles , alligators and crocodiles are common in wetlands of some regions. In freshwater wetlands of the Southeastern US, alligators are common and a freshwater species of crocodile occurs in South Florida. The Florida Everglades
12296-440: The types of plants that live within them. Specifically, wetlands are characterized as having a water table that stands at or near the land surface for a long enough period each year to support aquatic plants . A more concise definition is a community composed of hydric soil and hydrophytes . Wetlands have also been described as ecotones , providing a transition between dry land and water bodies. Wetlands exist "...at
12412-418: The use of the well: A water well constructed for pumping groundwater can be used passively as a monitoring well and a small diameter well can be pumped, but this distinction by use is common. Before excavation, information about the geology, water table depth, seasonal fluctuations, recharge area and rate should be found if possible. This work can be done by a hydrogeologist , or a groundwater surveyor using
12528-535: The water of Suffolk County . Force Tube Avenue, Conduit Boulevard , and Sunrise Highway were built, in part, atop the water conduit or within its right of way , early in the 20th century. Highland Park was created on land immediately surrounding Ridgewood Reservoir that was purchased by the City of Brooklyn in 1891 under the jurisdiction of the Highland Park Society. The park was constructed between 1901 and 1906 and included additional parcels purchased to
12644-463: The water table falls and the surrounding soil begins to dry out. Another environmental problem is the potential for methane to seep into the water. Very early Neolithic wells are known from the Eastern Mediterranean . The oldest reliably dated well is from the pre-pottery neolithic (PPN) site of Kissonerga-Mylouthkia on Cyprus . At around 8400 BC a shaft (well 116) of circular diameter
12760-505: The well bore, falling objects and asphyxiation, including from dewatering pump exhaust fumes. The Woodingdean Water Well , hand-dug between 1858 and 1862, is the deepest hand-dug well at 392 metres (1,285 ft). The Big Well in Greensburg, Kansas , is billed as the world's largest hand-dug well, at 109 feet (33 m) deep and 32 feet (9.8 m) in diameter. However, the Well of Joseph in
12876-400: The well slowly decreases and is removed from the well. Rock wells are typically cased with a PVC liner/casing and screen or slotted casing at the bottom, this is mostly present just to keep rocks from entering the pump assembly. Some wells utilize a filter pack method, where an undersized screen or slotted casing is placed inside the well and a filter medium is packed around the screen, between
12992-402: The world, typically in rural or sparsely populated areas, though many urban areas are supplied partly by municipal wells. Most shallow well drilling machines are mounted on large trucks, trailers, or tracked vehicle carriages. Water wells typically range from 3 to 18 metres (10–60 ft) deep, but in some areas it can go deeper than 900 metres (3,000 ft). Rotary drilling machines use
13108-511: Was already being used as the City of New York's water supply, and it did not have the capacity to serve the City of Brooklyn as well. The Bronx River was both inadequate and difficult to access. Wells in and near Brooklyn were inadequate both in quantity and quality. Natural lakes on Long Island were few and could not provide enough water. The only solution was to tap the many small streams on Long Island and conduct their water to Brooklyn to be lifted into an elevated reservoir. The original design of
13224-517: Was burned to evaporate brine and produce salt . By the 10th century, extensive bamboo pipelines connected oil wells with salt springs. The ancient records of China and Japan are said to contain many allusions to the use of natural gas for lighting and heating. Petroleum was known as Burning water in Japan in the 7th century. Until recent centuries, all artificial wells were pumpless hand-dug wells of varying degrees of sophistication, and they remain
13340-512: Was carried in a 12-mile-long masonry conduit , called the Ridgewood Aqueduct, to a pumping station at Atlantic Avenue and Chestnut Street. There, steam-powered pumps, each with a capacity of 14 million gallons (53,000 m) per day, forced the water up through a reinforced tube into the high reservoir whence it was distributed. By 1868 the Ridgewood Reservoir held an average of 154.4 million gallons (584,000 m) daily, enough to supply
13456-433: Was driven through limestone to reach an aquifer at a depth of 8 metres (26 ft). Well 2070 from Kissonerga-Mylouthkia, dating to the late PPN, reaches a depth of 13 metres (43 ft). Other slightly younger wells are known from this site and from neighbouring Parekklisha-Shillourokambos. A first stone lined well of 5.5 metres (18 ft) depth is documented from a drowned final PPN (c. 7000 BC) site at ‘Atlit-Yam off
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