Sewerage is the infrastructure that conveys sewage or surface runoff using sewers. It encompasses components such as receiving drains, manholes, pumping stations, storm overflows, and screening chambers of the combined sewer or sanitary sewer. Sewerage ends at the entry to a sewage treatment plant or at the point of discharge into the environment. It is the system of pipes, chambers, manholes, etc. that conveys the sewage or storm water.
A septic tank is an underground chamber made of concrete, fiberglass, or plastic through which domestic wastewater (sewage) flows for basic sewage treatment. Settling and anaerobic digestion processes reduce solids and organics, but the treatment efficiency is only moderate. Septic tank systems are a type of simple onsite sewage facility. They can be used in areas that are not connected to a sewerage system, such as rural areas. The treated liquid effluent is commonly disposed in a septic drain field, which provides further treatment. Nonetheless, groundwater pollution may occur and can be a problem.
A sanitary sewer is an underground pipe or tunnel system for transporting sewage from houses and commercial buildings to a sewage treatment plant or disposal. Sanitary sewers are a type of gravity sewer and are part of an overall system called a "sewage system" or sewerage. Sanitary sewers serving industrial areas may also carry industrial wastewater. In municipalities served by sanitary sewers, separate storm drains may convey surface runoff directly to surface waters. An advantage of sanitary sewer systems is that they avoid combined sewer overflows. Sanitary sewers are typically much smaller in diameter than combined sewers which also transport urban runoff. Backups of raw sewage can occur if excessive stormwater inflow or groundwater infiltration occurs due to leaking joints, defective pipes etc. in aging infrastructure.
The London sewer system is part of the water infrastructure serving London, England. The modern system was developed during the late 19th century, and as London has grown the system has been expanded. It is currently owned and operated by Thames Water and serves almost all of Greater London.
Sewage disposal regulation and administration describes the governance of sewage treatment and disposal.
Effluent is wastewater from sewers or industrial outfalls that flows directly into surface waters, either untreated or after being treated at a facility. The term has slightly different meanings in certain contexts, and may contain various pollutants depending on the source.
Stoke Bardolph is a village and civil parish in the Gedling district of Nottinghamshire. The population of the civil parish taken at the 2011 census was 170. It is to the east of Nottingham, and on the west bank of the River Trent. Nearby places include Burton Joyce and Radcliffe on Trent.
A combined sewer is a type of gravity sewer with a system of pipes, tunnels, pump stations etc. to transport sewage and urban runoff together to a sewage treatment plant or disposal site. This means that during rain events, the sewage gets diluted, resulting in higher flowrates at the treatment site. Uncontaminated stormwater simply dilutes sewage, but runoff may dissolve or suspend virtually anything it contacts on roofs, streets, and storage yards. As rainfall travels over roofs and the ground, it may pick up various contaminants including soil particles and other sediment, heavy metals, organic compounds, animal waste, and oil and grease. Combined sewers may also receive dry weather drainage from landscape irrigation, construction dewatering, and washing buildings and sidewalks.
Southern Water is the private utility company responsible for the public wastewater collection and treatment in Hampshire, the Isle of Wight, West Sussex, East Sussex and Kent, and for the public water supply and distribution in approximately half of this area. Some areas within the Southern Water region are supplied by a number of smaller water supply companies. Southern Water supplies an area totalling 4,450 sq. km. and serves 2.26 million customers.
Public water supply and sanitation in Scotland is characterised by universal access and generally good service quality. Water and sewerage services are provided by a single public company, Scottish Water. The economic water industry regulator is the Water Industry Commission for Scotland. It "promotes the interests of water and sewerage customers in Scotland by making sure that householders and businesses receive a high-quality service and value for money by setting prices, monitoring Scottish Water's performance and facilitating competition in the water industry". The environmental regulator is the Scottish Environment Protection Agency. Drinking water standards and wastewater discharge standards are determined by the EU.
A regional water authority, commonly known as a water board, was one of a group of public bodies that came into existence in England and Wales in April 1974, as a result of the Water Act 1973 coming into force. This brought together in ten regional units a diverse range of bodies involved in water treatment and supply, sewage disposal, land drainage, river pollution and fisheries. They lasted until 1989, when the water industry was privatised and the water supply and sewerage and sewage disposal parts became companies and the regulatory arm formed the National Rivers Authority. Regional water authorities were also part of the Scottish water industry when three bodies covering the North, West and East of Scotland were created in 1996, to take over responsibilities for water supply and sewage treatment from the regional councils, but they only lasted until 2002, when they were replaced by the publicly owned Scottish Water.
Point source water pollution comes from discrete conveyances and alters the chemical, biological, and physical characteristics of water. In the United States, it is largely regulated by the Clean Water Act (CWA). Among other things, the Act requires dischargers to obtain a National Pollutant Discharge Elimination System (NPDES) permit to legally discharge pollutants into a water body. However, point source pollution remains an issue in some water bodies, due to some limitations of the Act. Consequently, other regulatory approaches have emerged, such as water quality trading and voluntary community-level efforts.
Deephams Sewage Treatment Works is a sewage treatment facility close to Picketts Lock, Edmonton, England. The outflow discharges via Pymmes Brook into the River Lee Navigation at Tottenham Lock. The treatment works was upgraded in 2012/13.
Mogden Sewage Treatment Works is a sewage treatment plant in the Ivybridge section of Isleworth, West London, formerly known as Mogden. Built in 1931–36 by Middlesex County Council and now operated by Thames Water, it is the third largest sewage works in the United Kingdom. It treats the waste water from about 1.9 million people served by three main sewers serving more than the northwest quarter of Outer London and two further main sewers from the south and south-west. The plant has been extended and is constantly being upgraded with new process, most recently in OfWat Amp6 by the Costain Atkins Joint venture who delivered 6MW of Combined Heat and Power (CHP) generation, New process air blowers for Batteries A & B and six gravity sludge thickening streams. The site covers 55 hectares.
The Water Act 1989 is an Act of the Parliament of the United Kingdom that reorganised the bodies responsible for all aspects of water within England and Wales. Whereas previous legislation, particularly the Water Act 1973, had focused on providing a single unifying body with responsibility for all water-related functions within a river basin or series of river basins, this legislation divided those functions up again, with water supply, sewerage and sewage disposal being controlled by private companies, and the river management, land drainage and pollution functions becoming the responsibility of the National Rivers Authority.
Decentralized wastewater systems convey, treat and dispose or reuse wastewater from small and low-density communities, buildings and dwellings in remote areas, individual public or private properties. Wastewater flow is generated when appropriate water supply is available within the buildings or close to them.
Marcic v Thames Water plc [2003] UKHL 66 is a UK enterprise law and English tort law case, concerning water in the UK.
Liverpool Corporation Waterworks and its successors have provided a public water supply and sewerage and sewage treatment services to the city of Liverpool, England. In 1625 water was obtained from a single well and delivered by cart, but as the town grew, companies supplied water to homes through pipes. There were two main companies by the 1840s, but the water supply was intermittent, and there was general dissatisfaction with the service. Liverpool Corporation decided that such an important service should be provided by a public body, and sought to take over the water supply companies.
Lincoln Corporation Waterworks and its predecessors and successors have provided a public water supply and sewerage and sewage treatment services to the city of Lincoln, England. The Romans are known to have built a conduit from the Roaring Meg stream to a water tower in East Bight. Further development took place in 1846, when the Lincoln Water Company was established, following a national outbreak of cholera in 1831-32. The main source of supply was formed by impounding Prial Drain to form Hartsholme Lake. The water was filtered by sand filters at Boultham, and was pumped to a service reservoir at Westgate. Lincoln Corporation wanted to gain control of their water supply, and bought out the water company in 1871. The enabling Act of Parliament also allowed them to construct a sewerage network, which fed a sewage farm at Canwick, but the Bracebridge area was not connected to the sewers, and waste water polluted local watercourses. There were sporadic outbreaks of typhoid and cholera, although the Corporation argued that these might not be linked to a polluted water supply.
Worksop Waterworks Company, its predecessors and successors have provided a public water supply, together with sewerage and sewage treatment facilities to the town of Worksop since the mid-19th century. Unlike many towns, the sewerage network was constructed before the water supply network, and there was official opposition to the idea of providing a water supply network.
