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90-645: The San Diego County Water Authority ( SDCWA ) is a wholesale supplier of water to the roughly western third of San Diego County, California . The Water Authority was formed in 1944 by the California State Legislature . SDCWA serves 24 member agencies with 36 Board of Director members. In addition to local water sources, water is imported from the Colorado River and the Sacramento–San Joaquin River Delta through

180-517: A National Hockey League (NHL) franchise, though it hosted the San Diego Mariners of the now-defunct World Hockey Association (WHA) from 1974 to 1977. Currently, there is no NFL, NBA, or NHL team in the county. San Diego is the largest American city not to have won a championship in a "Big Four" major professional league. The city does have one major league title to its name: the 1963 American Football League (AFL) Championship won by

270-424: A sewer force main if the sewage is transported some significant distance. The pumping station may be called a lift station if the pump merely discharges into a nearby gravity manhole. From here the cycle starts all over again until the sewage reaches its point of destination—usually a treatment plant. By this method, pumping stations are used to move waste to higher elevations. In the case of high sewage flows into

360-572: A 6% decrease from 2017. 3,586 were sheltered, and 4,990 were not. 4,912 (75.3%) were in the city of San Diego. North County Inland had 1,153 (13.4%), North County Coastal with 822 homeless (9.6%), 602 (7%) were found in South County, and 1,087 (12.7%) in East County. According to a 2014 Pew Research Center survey, 68% of adults in the county were Christian , of whom 32% were Catholic . 27% were religiously unaffiliated , and 5% adhered to

450-401: A chain off of the duckfoot and up the two guide rails to the maintenance (normally ground) level. Reinstalling the pumps simply reverses this process with the pump being remounted on the guide rails and lowered onto the duckfoot where the weight of the pump reseals it. As the motors are sealed and weather is not a concern, no above ground structures are required, excepting a small kiosk to contain

540-598: A concept pioneered during the Victorian era in places like The Fens in the UK. The introduction of "package pumping stations" has modernized drainage systems, allowing a compact, efficient solution for areas where gravity drainage is impractical. Water pumping stations are differentiated by their applications, such as sourcing from wells, raw water pumping, and high service pumping, each designed to meet specific demand projections and customer needs. Wastewater pumping stations, on

630-709: A destination for trafficked minors from Mexico and the Philippines. In 2018, the United States Border Patrol caught an average of over a hundred individuals crossing the border illegally each day. San Diego County and Imperial County are part of the Southern Border Region , one of nine such regions. As a regional economy, the Southern Border Region is the smallest but most economically diverse region in

720-459: A dry well or pump house and usually consist only of a wet well. In this configuration, submersible sewage pumps with closely coupled electric motor are mounted within the wet well itself, submerged within the sewage. Submersible pumps are mounted on two vertical guide rails and seal onto a permanently fixed "duckfoot", which forms both a mount and also a vertical bend for the discharge pipe. For maintenance or replacement, submersible pumps are raised by

810-410: A female householder with no husband present, and 33.3% were non-families. 24.2% of all households were made up of individuals, and 7.9% had someone living alone who was 65 years of age or older. The average household size was 2.73 and the average family size was 3.29. As of 2000, 25.7% of the population was under the age of 18, 11.30% was from 18 to 24, 32.0% from 25 to 44, 19.8% from 45 to 64, and 11.2%

900-437: A high-level alarm indication, in the event of pump failure; and possibly a guide-rail/auto-coupling/pedestal system, to permit easy removal of pumps for maintenance. Traditional site constructed systems have the valve vault components installed in a separate structure. Having two structural components can lead to potentially serious site problems such as uneven settling between components which results in stress on, and failure of

990-403: A large open passage so as to avoid clogging with debris or winding stringy debris onto the impeller. A four pole or six pole AC induction motor normally drives the pump. Rather than provide large open passages, some pumps, typically smaller sewage pumps, also macerate any solids within the sewage breaking them down into smaller parts which can more easily pass through the impeller. The interior of

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1080-487: A non-Christian faith. According to the University of Southern California , in 2010, the largest faith in the county was Catholicism, followed by non-denominational Christians , and Mormons . In 2014, the county had 978 religious organizations, the seventh most out of all US counties. In 2014 according to Pew Research Center , there are about 170,000 undocumented immigrants living in the region. San Diego has been

1170-457: A sewage pump station is a very dangerous place. Poisonous gases, such as methane and hydrogen sulfide , can accumulate in the wet well; an ill-equipped person entering the well would be overcome by fumes very quickly. Any entry into the wet well requires the correct confined space entry method for a hazardous environment. To minimize the need for entry, the facility is normally designed to allow pumps and other equipment to be removed from outside

1260-511: A specific pump controller. RTUs are very helpful in remote monitoring of each pumping station from a centralized control room with SCADA (Supervisory Control & Data Acquisition) systems. This setup can be helpful in monitoring pump faults, levels, and other alarms and parameters, making it more efficient. A pumped-storage scheme is a type of power station for storing and producing electricity to supply high peak demands by moving water between reservoirs at different elevations. Typically, water

1350-468: A thriving musical and theatrical scene, numerous notable special events, a varied cuisine, and a reputation as one of America's premier centers of craft brewing . Sports in San Diego County includes major professional league teams, other highest-level professional league teams, minor league teams, and college athletics . San Diego County hosts two teams of the major professional leagues,

1440-571: A varied topography. On its western side is more than 70 miles (113 km) of coastline. Most of San Diego between the coast and the Laguna Mountains consists of hills, mesas , and small canyons . Snow-capped (in winter) mountains rise to the east, with the Sonoran Desert farther to the east. The Cleveland National Forest is spread across the central portion of the county, while Anza-Borrego Desert State Park occupies most of

1530-526: A year. Most rainfall occurs from November to April. Winter temperatures are mild, with average high temperatures of 66–70 °F (19–21 °C) and lows of 50–56 °F (10–13 °C). The climate in the San Diego area, like much of California, often varies significantly over short geographical distances resulting in microclimates . In San Diego's case this is mainly due to the city's topography (the Bay, and

1620-537: Is a fail-safe plan in case of a lapse in imported water supply. The Emergency and Carryover Storage Project consists of dams, reservoirs, pipelines, and pumping stations to ensure continued supply to the region. In efforts to supplement imported water supply, SDCWA helped to facilitate the opening of the Claude "Bud" Lewis Carlsbad Desalination Plant in 2015. Currently the largest desalination plant world wide, producing 50 million gallons of water every day. In January 2020,

1710-516: Is a list of those described in this encyclopedia. In the UK, during the Victorian Era , there was a fashion for public buildings to feature highly ornate architecture . Consequently, a considerable number of former pumping stations have been listed and preserved. The majority were originally steam-powered, and where the steam engines are still in situ , many of the sites have since re-opened as museum attractions. Used to pump water from

1800-500: Is a record of past tsunamis . In the 1847 census of San Diego County ordered by Richard Barnes Mason , it found that 2,287 people lived in the county, to include Native Americans, Pacific Islanders, and African Americans. Since at least 2014, San Diego County is the fifth most populous county in the United States. In 2000, only about 3% of San Diego County residents left the county for work while 40,000 people commuted into

1890-563: Is a triangle from a first point on the northern edge of Carlsbad, a second point southeast of Escondido , and a third point on the southern edge of La Jolla . It contains all or most of the cities of Carlsbad, Encinitas, Solana Beach , Del Mar , and Poway in addition to a substantial portion of northern San Diego. According to a point-in-time count taken for the San Diego Regional Task Force on Homelessness, there were 8,576 homeless individuals on January 6, 2018,

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1980-407: Is available, back pumping systems may be employed. Water is extracted from the canal below the lowest lock of a flight and is pumped back to the top of the flight, ready for the next boat to pass through. Such installations are usually small. When low-lying areas of land are drained, the general method is to dig drainage ditches . However, if the area is below sea level then it is necessary to pump

2070-479: Is built into the system so that in the event that any one pump is out of service, the remaining pump or pumps will handle the designed flow. The storage volume of the wet well between the "pump on" and "pump off" settings is designed to minimize pump starts and stops, but is not so long a retention time as to allow the sewage in the wet well to go septic . Sewage pumps are almost always end-suction centrifugal pumps with open impellers and are specially designed with

2160-409: Is channeled from a high-level reservoir to a low-level reservoir, through turbine generators that generate electricity. This is done when the station is required to generate power. During low-demand periods, such as overnight, the generators are reversed to become pumps that move the water back up to the top reservoir. There are countless thousands of pumping stations throughout the world. The following

2250-431: Is fed from underground gravity pipelines (pipes that are sloped so that a liquid can flow in one direction under gravity). Sewage is fed into and stored in a pit, commonly known as a wet well . The well is equipped with electrical instrumentation to detect the level of sewage present. When the sewage level rises to a predetermined point, a pump will be started to lift the sewage upward through a pressurized pipe system called

2340-451: Is not possible. A package pumping station is an integrated system, built in a housing manufactured from strong, impact-resistant materials such as precast concrete , polyethylene , or glass-reinforced plastic . The unit is supplied with internal pipework fitted, pre-assembled ready for installation into the ground, after which the submersible pumps and control equipment are fitted. Features may include controls for fully automatic operation;

2430-673: Is one of seven states which receive water from The Colorado River. Around 17% of the water supplied through SDCWA comes from the State Water Project. Local sources from the Metropolitan Water District include recycled water , groundwater pumping, and desalinated water from the Carlsbad Desalination Plant. The Carlsbad desalination plant can supply up to 56,000 acre-feet (69 million cubic metres) of water. The rates are among

2520-713: The Central Arizona Project (CAP), the Southern California Gas Company , and Western Resource Advocates. For contractors the SDCWA has a WaterSmart Contractor Incentive Program (WSCIP), where participants can purchase water saving devices to use in their watering systems. SDCWA also runs water conservation programs in both educational and practical applications. San Diego County, California San Diego County ( / ˌ s æ n d i ˈ eɪ ɡ oʊ / ), officially

2610-634: The Claverton and Crofton Pumping Stations , are preserved as museum attractions. Examples such as land drainage in the Netherlands water supply in Hong Kong and agricultural drainage in Iraq, underscore the vital role these facilities play in supporting modern infrastructure, environmental management, and energy storage. In countries with canal systems, pumping stations are also frequent. Because of

2700-512: The County of San Diego , is a county in the southwest corner of the U.S. state of California . As of the 2020 census , the population was 3,298,634; it is the second-most populous county in California and the fifth-most populous in the United States. Its county seat is San Diego , the second-most populous city in California and the eighth-most populous in the United States. It is

2790-455: The Metropolitan Water District of Southern California . SDCWA is the sole recipient of fresh water produced by the Claude "Bud" Lewis Carlsbad Desalination Plant . Spanish missionaries in the San Diego area in 1769 noticed that the local water supply was in need of infrastructure, such as dams and aqueducts , to increase supply to the area. One of the first water projects in San Diego

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2880-854: The National Football League (NFL)'s San Diego Chargers from 1961 to 2017, when the team relocated to the Greater Los Angeles area (now the Los Angeles Chargers ). The county also hosted the National Basketball Association (NBA)'s San Diego Rockets from 1967 to 1971 (now the Houston Rockets ) and San Diego Clippers from 1978 to 1984 (now the Los Angeles Clippers ). San Diego County has never hosted

2970-536: The Peninsular Ranges for hiking, biking, mountainboarding and trail riding . Surfing locations include Swami's , Stone Steps Beach, Torrey Pines State Beach , Cardiff State Beach , San Onofre State Beach and the southern portion of Black's Beach . The region is host to the second largest cruise ship industry in California which generates an estimated $ 2 million annually from purchases of food, fuel, supplies, and maintenance services. In 2008,

3060-508: The Port of San Diego hosted 252 ship calls and more than 800,000 passengers. The culture of San Diego is influenced heavily by American and Mexican cultures due to its position as a border town , its large Hispanic population, and its history as part of Spanish America and Mexico . The area's longtime association with the U.S. military also contributes to its culture. Present-day culture includes many historical and tourist attractions,

3150-601: The San Diego Padres of Major League Baseball (MLB) and San Diego FC of Major League Soccer (MLS). The county is home to several universities whose teams compete in various NCAA Division I sports, most notably the San Diego State Aztecs . The Farmers Insurance Open , a professional golf tournament on the PGA Tour , is played annually at Torrey Pines Golf Course . San Diego County hosted

3240-576: The South Bay or South County, including South San Diego , an exclave of the city of San Diego which has no land connection to the rest of the city. San Diego County is bordered on the northwest by Orange County , on the north by Riverside County ; on the east by Imperial County ; on the south by Mexico ; and on the west by the Pacific Ocean. Under the Köppen climate classification system,

3330-647: The 18th most populous primary statistical area in the United States. San Diego County is also part of the San Diego–Tijuana region, the largest metropolitan area shared between the United States and Mexico. From north to south, San Diego County extends from the southern borders of Orange and Riverside Counties to the Mexico–U.S. border and the municipalities of Tijuana and Tecate in Baja California . From west to east, San Diego County stretches from

3420-611: The 2020 Urban Water Management Plan was developed with 6 elements outlining future forecast, savings, supply and reliability, and planning and shortage analysis in the region that SDCWA manages. SDCWA has water saving incentive programs for both residential and commercial consumers. Residential programs include water saving tips for both indoor and outdoor uses, as well as gardening demonstrations. Residential incentives include rebates for high-efficiency washers and toilets for indoor use, and rebates on sprinkler nozzles, rain barrels, and turf replacement for outdoor water use. For businesses,

3510-512: The Census Bureau estimates there were 3,343,364 people, 1,067,846 households, and 663,449 families residing in the county. The population density was 670 inhabitants per square mile (260/km ). There were 1,142,245 housing units at an average density of 248 per square mile (96/km ). In 2000, there were 994,677 households, out of which 33.9% had children under the age of 18 living with them, 50.7% were married couples living together, 11.6% had

3600-464: The Colorado Desert, has an average January low of 43 °F (6 °C) and August high of 106 °F (41 °C). Rainfall along the coast averages about 10 inches (25 cm) of precipitation annually, which occurs mainly during the cooler months of December through April. Though there are few wet days per month during the rainy period, rainfall can be heavy when it does occur. However,

3690-431: The Pacific Ocean to its boundary with Imperial County , which separated from it in 1907. San Diego County has more than 70 miles (113 km) of coastline. This forms the most densely populated region of the county, which has a mild Mediterranean to semiarid climate and extensive chaparral vegetation, similar to the rest of the western portion of Southern California. Precipitation and temperature extremes increase to

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3780-437: The Pacific Ocean to the Colorado River , and it no longer covered the entire border between California and Mexico. According to the U.S. Census Bureau , the county has an area of 4,526 square miles (11,720 km ), of which 4,207 square miles (10,900 km ) is land and 319 square miles (830 km ) (7.0%) is water. The county is larger in area than the combined states of Rhode Island and Delaware. San Diego County has

3870-590: The SDCWA has incentives including both indoor and outdoor water efficiency rebates and programs including their community partnering program run through the Metropolitan Water Districts Innovative Conservation Program (ICP). ICP does work to evaluate water saving technology and their efficiencies. The ICP provides funding with the help of the U.S. Bureau of Reclamation (USBR), Environmental Protection Agency (EPA), Southern Nevada Water Authority (SNWA),

3960-947: The San Diego Chargers, when the AFL was an independent entity prior to the AFL–NFL merger in 1970. Due to its lackluster record on winning professional championships, and in some cases retaining professional teams, some San Diego sports fans believe there is a curse on professional sports in the city. Pumping station Pumping stations are designed to move water or sewage from one location to another, overcoming gravitational challenges, and are essential for maintaining navigable canal levels, supplying water, and managing sewage and floodwaters. In canal systems, pumping stations help replenish water lost through lock usage and leakage, ensuring navigability. Similarly, in land drainage, stations pump water to prevent flooding in areas below sea level,

4050-799: The San Diego Museum of Art , Fleet Science Center , San Diego Natural History Museum , USS Midway Museum , and the San Diego Air & Space Museum . Historical places such as the Gaslamp Quarter , Balboa Park and Old Town San Diego State Historic Park . Wildlife refuges, zoos, and aquariums such as the San Diego Zoo , San Diego Zoo Safari Park , Birch Aquarium , and the San Diego-La Jolla Underwater Park . Outdoor destinations include

4140-499: The Water Authority: SDCWA officials are currently working at the state and federal level to maintain the latest knowledge of legislative decisions affecting San Diego's water supply. The Capital Improvement Program (CIP) has been an ongoing project since 1989 and works to establish infrastructure to support regional water needs. A current project of CIP is the $ 1.5 billion Emergency and Carryover Storage Project which

4230-585: The accumulation of sedimentary mud that created the land initially. Elsewhere, pumping stations are used to remove water that has found its way into low-lying areas as a result of leakage or flooding (in New Orleans , for example). In more recent times, a "package pumping station" provides an efficient and economic way of installing a drainage system. They are suitable for mechanical building services collection and pumping of liquids like surface water, wastewater or sewage from areas where drainage by gravity

4320-600: The area for Saint Didacus , a Spaniard more commonly known as San Diego. European settlement in what is now San Diego County began with the founding of the San Diego Presidio and Mission San Diego de Alcalá by Spanish soldiers and clerics in 1769. This county was part of Alta California under the Viceroyalty of New Spain until the Mexican declaration of independence . From 1821 through 1848, this area

4410-653: The area has been subject to wildfires that force thousands to evacuate. The most recent are the December 2017 Lilac Fire , the May 2014 San Diego County wildfires , the Witch Creek Fire in 2007, and the Cedar Fire in 2003. California defines a fire season in which fires are most likely to occur, usually between late July and late October (which are the driest months of the area). Signs posted in numerous spots of

4500-596: The county provide information on the level of threats from fires based on weather conditions. Northern San Diego County is known as North County ; the eastern suburbs are collectively known as East County ; the rural areas located further east and extending to the Imperial County line are known as the Mountain Empire ; and the southern suburbs, extending to the Mexican border, are collectively known as

4590-450: The demand or projected demand is reasonably defined, and is dependent on a combination of customer needs and fire flow requirements. Average annual per-capita water consumption, peak hour, and maximum daily can vary greatly due to factors such as climate, income levels, population, and the proportions of residential, commercial, and industrial users. Pumping stations in sewage collection systems are normally designed to handle raw sewage that

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4680-607: The desalination plant in Carlsbad . By 2035 it is projected that local water will meet the region's water demands. The San Diego County Water Authority supplies its members both imported and local water resources. Imported water used by SDCWA comes from the Sacramento – San Joaquin rivers through State Water Project aqueducts , and from the Colorado River (through the Colorado River Aqueduct ). California

4770-545: The early 20th century, San Diego County had a thriving wine industry ; however the 1916 Charles Hatfield flood was the beginning of the end of the industry which included the destruction of the Daneri winery in Otay Valley . As of October 2016 , there are roughly one hundred vineyards and wineries in San Diego County. By the 2019–2020 statistical survey, California Department of Food & Agriculture (cdfa) found that

4860-637: The east, with mountains that receive frost and snow in the winter. These lushly forested mountains receive more rainfall than the average in Southern California, while the desert region of the county lies in a rain shadow to the east, which extends into the Desert Southwest region of North America. The area which is now San Diego County has been inhabited for more than 12,000 years by the Kumeyaay (also known as 'Iipai-Tiipai or by

4950-458: The efficiency and monitoring capabilities of pumping stations, essential for modern systems. Pumped-storage schemes represent a critical use of pumping stations, providing a method for energy storage and generation by moving water between reservoirs at different elevations, highlighting the versatility and importance of pumping stations across sectors. Some pumping stations have been recognized for their architectural and historical significance, e.g.

5040-417: The electrical switchgear and control systems. Due to the much reduced health and safety concerns, and smaller footprint and visibility, submersible pump sewage pumping stations have almost completely superseded traditional sewage pumping stations. Further, a refit of a traditional pumping station usually involves converting it into a modern pumping station by installing submersibles in the wet well, demolishing

5130-800: The highest in Southern California. Members served by SDCWA include cities, water districts, irrigation districts, municipal water districts, public utility districts, and a military base. The Water Authority was formed in 1944 by the California State Legislature and operates under the County Water Authority Act, which can be found in the California State Water Code . SDCWA head quarters are located in Kearny Mesa . Current leadership includes Jim Madaffer (Chair), Gary Crocher (Vice Chair), and Christy Guerin (Secretary). The following agencies purchase water from

5220-636: The historical Spanish name Diegueño), Luiseño , Cupeño , Cahuilla , and the Acjachemen people and their local predecessors. In 1542, the explorer Juan Rodríguez Cabrillo , who may have been born in Portugal but sailed under the flag of Castile , claimed San Diego Bay for the Spanish Empire , and he named the site San Miguel. In November 1602, Sebastián Vizcaíno surveyed the harbor and what are now Mission Bay and Point Loma and named

5310-812: The largest population center in the desert, averages only 5 inches (13 cm), with a high evaporation rate. There are seven official wilderness areas in San Diego County that are part of the National Wilderness Preservation System (NWPS). Four of these are integral parts of Cleveland National Forest, whereas three are managed by the Bureau of Land Management (BLM). Some of these extend into neighboring counties (as indicated below): There are 236 mountain summits and peaks in San Diego County including: More than 1,700 tons of radioactive waste are stored at San Onofre Nuclear Generating Station , which sits in an area where there

5400-419: The later part of the 19th century, there were numerous changes in the boundaries of San Diego County, when various areas were separated to make up the counties mentioned above. The most recent changes were the establishments of Riverside County in 1893 and Imperial County in 1907. Imperial County was also the last county to be established in California, and after this division, San Diego no longer extended from

5490-466: The median home price was $ 583,000; this is lower than the median home price in Los Angeles, and Orange counties. According to the 2000 census, the median income for a household in the county was $ 47,067, and the median income for a family was $ 53,438. Males had a median income of $ 36,952 versus $ 30,356 for females. The per capita income for the county was $ 22,926. About 8.9% of families and 12.4% of

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5580-559: The metropolitan area. ' The 2010 United States census reported that San Diego County had a population of 3,095,313. The racial makeup of San Diego County was 1,981,442 (64.0%) White , 158,213 (5.1%) African American , 26,340 (0.9%) Native American , 336,091 (10.9%) Asian (4.7% Filipino, 1.6% Vietnamese, 1.4% Chinese, 3.2% Other Asian), 15,337 (0.5%) Pacific Islander , 419,465 (13.6%) from other races , and 158,425 (5.0%) from two or more races. Hispanic or Latino of any race were 991,348 people (32.0%). Including those of mixed race,

5670-401: The northeast. Although the county's western third is primarily urban, the mountains and deserts in the eastern two-thirds are primarily undeveloped backcountry . Most of these backcountry areas are home to a native plant community known as chaparral . San Diego County contains more than 1,000,000 acres (4,000 km ) of chaparral, twice as much as any other California county. Periodically

5760-525: The numerous hills, mountains, and canyons). Frequently, particularly during the "May gray/ June gloom " period, a thick marine layer will keep the air cool and damp within a few miles of the coast, but will yield to bright cloudless sunshine approximately 5–10 miles (8.0–16.1 km) inland. This happens every year in May and June. Even in the absence of June gloom, inland areas tend to experience much more significant temperature variations than coastal areas, where

5850-549: The nursery trade dominated the county's agriculture by dollar value. Second place went to avocado production. The county has been called "the Craft Beer Capital of America". Brewing has been one of the fastest-growing business sectors with local breweries ranking among the 50 largest craft brewers in the United States and breweries that are consistently rated among the top breweries in the world. Commercial operations to grow, test, or sell cannabis are not allowed in

5940-496: The ocean serves as a moderating influence. Thus, for example, downtown San Diego averages January lows of 48 °F (9 °C) and August highs of 77 °F (25 °C). The city of El Cajon, just 10 miles (16 km) northeast of downtown San Diego, averages January lows of 42 °F (6 °C) and August highs of 89 °F (32 °C). Julian, in the mountains, has an average January low of 29 °F (−2 °C) and August high of 85 °F (29 °C). Borrego Springs, in

6030-412: The other hand, are engineered to handle sewage, with designs that ensure reliability and safety, minimizing environmental impacts from overflows. Innovations in pump technology and station design have led to the development of submersible pump stations, which are more compact and safer, effectively reducing the footprint and visibility of sewage management infrastructure. Electronic controllers have enhanced

6120-571: The pipes and connections between components. The development of a packaged pump station system combined all components into a single housing which not only eliminates uneven settling issues, but pre-plumbing and outfitting each unit prior to installation can reduce the cost and time involved with civil work and site labor. Water pumping stations are differentiated from wastewater pumping stations in that they do not have to be sized to account for high peak flow rates. They have five general categories: Water pumping stations are constructed in areas in which

6210-435: The population were below the poverty line, including 16.5% of those under age 18 and 6.8% of those age 65 or over. Much of the county's high-income residents are concentrated in the northern part of the city of San Diego. The San Diego metropolitan area has two places with both a population of over 50,000 and a per capita income of over $ 40,000: Carlsbad and Encinitas . The county's largest continuous high-income urban area

6300-479: The pump house and retiring the dry well by either stripping it, or knocking down the internal partition and merging it with the wet well. Pump manufacturers have always designed and manufactured electronic devices to control and supervise pumping stations. Today it is also very common to use a programmable logic controller (PLC) or Remote Terminal Unit (RTU) for such work, but the experience needed to solve certain particular problems, makes an easy choice to look for

6390-505: The rainfall is greater in the higher elevations of San Diego. Some of the higher areas of San Diego, such as Palomar Mountain and the Laguna Mountains , receive 20–40 inches (51–102 cm) of rain per year, supporting lush forests similar to the Sierra Nevada and California Coast Range . The Colorado Desert portion of the county lies to the east of the mountains, which receives the least amount of precipitation; Borrego Springs,

6480-451: The region for a well rounded experience, everything from shopping to surfing as well as its mild climate. Its numerous tourist destinations include Westfield UTC , Seaport Village , and Fashion Valley for shopping. SeaWorld San Diego and Legoland California as amusement parks. Golf courses such as Torrey Pines Golf Course and Balboa Park Golf Course. Museums such as the Museum of Us ,

6570-418: The sewage in the wet well, dry wells are underground, confined spaces and require appropriate precautions for entry. Further, any failure or leakage of the pumps or pipework can discharge sewage directly into the dry well with complete flooding not an uncommon occurrence. As a result, the electric motors are normally mounted above the overflow, top water level of the wet well, usually above ground level, and drive

6660-403: The sewage pumps through an extended vertical shaft. To protect the above ground motors from weather, small pump houses are normally built, which also incorporate the electrical switchgear and control electronics. These are the visible parts of a traditional sewage pumping station although they are typically smaller than the underground wet and dry wells. More modern pumping stations do not require

6750-524: The southwesternmost county in the 48 contiguous United States , and is a border county . It is home to 18 Indian reservations , the most of any county in the United States. There are 16 military installations of the U.S. Navy , Marine Corps , and Coast Guard in the county. San Diego County comprises the San Diego–Chula Vista–Carlsbad, CA metropolitan statistical area , which is the 17th most populous metropolitan statistical area and

6840-413: The state. However, the two counties maintain weak relations and have little in common aside from their common border. The region has a high cost of living . This includes the highest cost of water in the United States. As of 2018 , San Diego County is within the top ten highest cost of rent in the United States; this has led to people moving out of the county. San Diego County's agriculture industry

6930-468: The total number of residents with Asian ancestry was 407,984. As of 2009, the racial makeup of the county was 79.4% White American , 5.6% Black or African American , 1% Native American , 10.4% Asian , 0.5% Pacific Islander , 10.3% from other races , and 3.6% from two or more races. 31.3% of the population were Hispanic or Latino of any race. 67.0% spoke only English at home; 21.9% spoke Spanish, 3.1% Tagalog and 1.2% Vietnamese . As of 2018,

7020-426: The unincorporated areas of the county. Companies must be licensed by the local agency to operate and each city or county may authorize none or only some of these activities. Local governments may not prohibit adults, who are in compliance with state laws, from growing, using, or transporting marijuana for personal use. Tourism plays a large part in the economics of the San Diego metropolitan area. Tourists are drawn to

7110-558: The upper parts of the canal, but if no suitable source is available, a pumping station can be used to maintain the water level. An example of a canal pumping station is the Claverton Pumping Station on the Kennet and Avon Canal in southern England, United Kingdom. This pumps water from the nearby River Avon to the canal using pumps driven by a waterwheel which is powered by the river. Where no external water supply

7200-791: The urban and suburban San Diego area straddles areas of Mediterranean climate (Csa) to the north and hot semi-arid climate (BSh) to the south and east. As a result, it is often described as "arid Mediterranean" and "semi-arid steppe." Farther east, arid desert conditions prevail. Western San Diego's climate is characterized by warm, dry summers and mild winters with most of the annual precipitation falling between November and March. The city has mild, mostly dry weather, with an average of 201 days above 70 °F (21 °C) and low rainfall (9–13 inches (23–33 cm) annually). Summer temperatures are generally warm, with average highs of 70–78 °F (21–26 °C) and lows of 55–66 °F (13–19 °C). Temperatures exceed 90 °F (32 °C) only four days

7290-476: The water upwards into water channels that finally drain into the sea. The Victorians understood this concept, and in the United Kingdom they built pumping stations with water pumps , powered by steam engines to accomplish this task. In Lincolnshire, large areas of wetland at sea level, called The Fens , were turned into rich arable farmland by this method. The land is full of nutrients because of

7380-431: The way the system of canal locks work, water is lost from the upper part of a canal each time a vessel passes through. Also, most lock gates are not watertight, so some water leaks from the higher levels of the canal to those lower down. The water has to be replaced or eventually the upper levels of the canal would not hold enough water to be navigable. Canals are usually fed by diverting water from streams and rivers into

7470-438: The well (for example during peak flow periods and wet weather) additional pumps will be used. If this is insufficient, or in the case of failure of the pumping station, a backup in the sewer system can occur, leading to a sanitary sewer overflow —the discharge of raw sewage into the environment. Sewage pumping stations are typically designed so that one pump or one set of pumps will handle normal peak flow conditions. Redundancy

7560-404: The wet well. Traditional sewage pumping stations incorporate both a wet well and a "dry well". Often these are the same structure separated by an internal divide. In this configuration pumps are installed below ground level on the base of the dry well so that their inlets are below water level on pump start, priming the pump and also maximising the available NPSH . Although nominally isolated from

7650-676: Was Old Mission Dam which preceded the erection of six privately funded dams between 1887 and 1897, all of which are still exist today. Through an act of California state legislation , the San Diego County Water Authority was created in 1944 to oversee San Diego County’s water rights over the Colorado River. In 1952 San Diego started receiving water from the State Water Project from pipelines built by SDCWA. The Capital Improvement Program (CIP)

7740-439: Was 65 years of age or older. The median age was 33 years. For every 100 females, there were 101.2 males. For every 100 females age 18 and over, there were 99.7 males. In 2012, it was estimated that there were 198,000 unauthorized immigrants ; the origin of the plurality of them is Mexico . In 2018, the median household income was $ 70,824; most people spend more than 30% of their income on housing costs. In August of that year,

7830-690: Was created in 1989 to lower the need for imported water to the region. In 2003 the Quantification Settlement Agreement was signed with the Imperial Irrigation District , the single largest user of the Colorado River in Southern California. SDCWA funded repairs to leaky canals which included lining canals with concrete. For 110 years, the water district will receive 80,000 acre-feet (99 million cubic meters ) of water via this agreement. In 2015 SDCWA started supplementing their supply with water from

7920-420: Was one of the original counties of California, created at the time of California statehood in 1850. At the time of its establishment in 1850, San Diego County was relatively large, and included all of southernmost California south and east of Los Angeles County . It included areas of what are now Inyo and San Bernardino Counties, as well as all of what are now Riverside and Imperial Counties. During

8010-518: Was part of Mexico . San Diego County became part of the United States as a result of the Treaty of Guadalupe Hidalgo in 1848, ending the Mexican–American War . This treaty designated the border to pass through a point one marine league south of the southernmost point of the port of San Diego, ensuring that the United States received all of the natural harbor of San Diego Bay. San Diego County

8100-499: Was worth $ 1.85 billion in 2013, and is one of the top five egg producing counties in the United States. In 2013, San Diego County also had the most small farms of any county in the United States, and had the 19th largest agricultural economy of any county in the United States. According to the San Diego Farm Bureau, San Diego County is the United States' leading producer of avocados and nursery crops . Until

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