A brief history of water supply of Beijing Water Group Co., Ltd.

In the history of Beijing, before urban tap water facilities were built, shallow groundwater was mainly used as an important source of domestic water by drilling wells. According to records, there were a large number of tile wells during the Eastern Zhou Dynasty, mostly located in the area from Guang'an in the south of the city to Hepingmen. In the Han, Tang, Liao and Jin Dynasties, brick wells were built intersecting with the tile wells; during the Yuan Dynasty, there were 100,000 residents, troops , the palace mainly relied on well water; wells were common in streets and alleys in Beijing during the Qing Dynasty. In the 11th year of Guangxu (1885), there were 1,245 earthen wells in and around Beijing, but the water quality was mostly salty and bitter and did not meet sanitary standards.

In the 20th century, some people in my country who were influenced by the reform ideas and the Westernization Movement, as well as some businessmen, repeatedly proposed to the Ministry of Agriculture, Industry and Commerce of the Qing government to build a water plant in the capital. In March of the 34th year of Guangxu (1908), due to repeated fires and no water to put out the fire, Pu Ting, Xi Yan, and Yang Shiqi, ministers of the Ministry of Agriculture, Industry and Commerce of the Qing Dynasty, wrote to the Empress Dowager Cixi and Emperor Guangxu, proposing the construction of tap water facilities, and they were quickly approved. At the same time, Appoint Zhou Xuexi as prime minister to organize preparations. In April of the same year, through "China Merchants Group", the German merchant Tianjin Ruiji Foreign Company was entrusted to contract the design and construction of the project. It took 22 months to complete the entire project, and water supply was officially provided to Beijing on March 20, 1910. Since then, the mysterious veil of Beijing’s tap water supply history for nearly a century has been lifted. In April 1908, the Qing government established the "Beijing Water Supply Co., Ltd." and began to prepare for the construction of the first water plant in Beijing, the Dongzhimen Water Plant. The water plant project was completed in January 1910, and was officially put into production in March of the same year, with daily water supply. The capacity is 18,700 cubic meters and the water supply pipeline is 147 kilometers. The water supply range "ends within the Forbidden City and outside is limited to Guanxiang." In the following forty years, although it went through the late Qing Dynasty, Beiyang, Japanese and puppet rule, and the Nationalist Government, Beijing's water supply industry has been developing slowly. By 1949, on the eve of the liberation of Peiping, Beijing's water supply facilities only had one water tank in Dongzhimen. plant, 29 pressure-replenishing wells, and 364 kilometers of water supply pipelines, with a daily water supply capacity of 50,000 cubic meters. The water supply range is only in the prosperous urban areas, with more than 600,000 water users. The urban water supply penetration rate is 29.5. Most residents use self-dug earth wells or Water presses are used to draw shallow groundwater, and a small number of extremely poor families draw surface water such as ponds and rivers near their residences.

1. The construction of the first water plant was quite difficult

The founding of the tap water industry was an unprecedented new thing. At that time, the Qing government was ignorant and backward and relied on imports for everything. Ruiji was responsible for the supply of equipment. In addition to not delivering goods on time, foreign companies often provide a large amount of substandard equipment made in Germany and pass it off as good quality. On November 3, 1909, when the Dongzhimen Water Plant was delivering the water tower for trial operation, the cast iron water pipe next to the water tower suddenly burst by more than a foot as soon as it was started. It turned out that this water pipe was a remnant that had cracked for a long time. There are countless phenomena such as replacing the rubber pads of faucets with paper pads and providing rusty water pipes. But at that time, China was unable to produce, and the supplier was unreasonable in its denials, so we had no choice but to bite the bullet and purchase water supply equipment made in Germany. This not only caused difficulties in the construction, but also caused a lot of trouble in future operations.

Accidents often occur during the laying of water supply pipelines. Installation of water pipes must be done by digging trenches. Due to the uncivilized atmosphere at that time and the prevalence of feudal superstitions, many people believed that digging trenches would destroy the feng shui of local owners and bring them ominous disasters, so they blocked it, especially some Powerful people perform particularly well. For example, when the water supply pipeline was installed on the north back wall of the Qing Regent's Palace (today's former residence of Soong Ching Ling), the palace's family members came out to stop the digging of trenches. This was a very popular wealthy family at the time, so the workers had to stop work and report to their superiors. After a while, the responsible sexton drove a carriage, holding the imperial edict in his hand, and walked all the way to the construction site, shouting that the edict had arrived. The family members who were blocking the construction suddenly fell to their knees. At this time, the sexton's hand I recited the imperial edict, which roughly means that this project is being constructed in accordance with the imperial edict and is beneficial to people's livelihood, and no officials in the places passing by can block it. After that, the royal family no longer blocked the digging of trenches, and the project was able to continue. There are many more such things.

2. There were many difficulties in selling water in the early days

When the water company officially opened, it was suspected and opposed by some people, and even spread rumors and slanders, saying that the tap water was "foreign soap water". It cannot be used, which made it very difficult to sell tap water in the early stage. In order to eliminate the concerns of many people, the Jingshi Water Company took great pains to publish advertisements in both classical Chinese and vernacular Chinese newspapers with detailed statements, asking the newspaper to guide public opinion and educate society so that everyone would know the benefits of tap water. At the same time, It also enlightens the public and refutes those rumors through scientific reasoning. The advertisement says, "...But there is one thing that needs to be declared to everyone. The water that is first released from the faucet has a little white color. This white color is not a problem. , took a closer look with a microscope, and saw that they were all tiny white blisters... but within a minute, the blisters completely melted away, and the water became completely clear. Some people thought it was a tube. It cannot be washed clean, and it is said to be the same as foreign soap water. But the truth is clear once it is explained, so that no one will misunderstand it. "

In order to attract more customers, the water company said in its advertisement: " ...In the future, you can buy two tickets with one copper, and you can get a bottle of water with one ticket. It is really cheap for three months from February 10th to May 10th, and our company offers preferential prices. , cut the water price in half. With one copper, you can buy four tickets and get four bottles of water..." Despite vigorous publicity, the business situation is still poor, relying on 420 markets. Water was sold at the faucet and a very small amount of water was specially managed for users. In 1910, the average daily water supply was only 1,613 cubic meters.

3. In the past, drinking tap water was the exclusive preserve of the rich.

In the early 20th century, except for the water used in the palace gardens and the imperial tea room, which had a special waterwheel to draw spring water from Yuquan Mountain, most people Residents mainly rely on simple shallow wells to obtain water for daily use. To this day, there are still many streets and alleys in urban areas named after the owners of wells, the quality of the water in the wells, the location of the wells, or the number of wells. Such as Wangfujing, Yaojiajing, Datianshuijing, Xiaotianshuijing, Kushuijing, Eryanjing, Sanyanjing, Qijinghutong and so on. According to records in 1945, there are still 4,500 shallow wells in Beijing.

When the Dongzhimen Water Plant was built, the main consideration was for the wealthy businessmen and dignitaries in the palace and the city. But at the beginning, the palace did not drink tap water. They drank water from Yuquan Mountain. As for the installation of tap water pipes in the palace, it was mainly for fire protection. However, at that time, only a section of DN200mm pipe was introduced from Donghua Gate and installed in Wenchang Pavilion. , the total length is only 300 meters, and several fire hydrants are installed on it, but it is purely symbolic. Not only the palace, but also many dignitaries in the early days did not drink tap water because they were afraid that the water would be poisoned by foreign devils. This phenomenon continued until the Manchu Qing government was overthrown and the Republic of China was established. Some high-ranking officials dared to drink tap water because of the gradual enlightenment of the atmosphere. However, ordinary people cannot afford to drink tap water because they live in poverty. Although the water plant is close at hand, they can only "look at the plum blossoms to quench their thirst." At that time, an old man said with emotion: I have been looking at this Shuilouzi (water tower) for more than 40 years, but I have only eaten the water it contains until today (after liberation).

4. There are many difficulties in building a new water plant

In 1942, in order to expand water sources, increase the water supply capacity and reduce the demand of the Dongzhimen Water Plant, the Water Management Bureau of the former Japanese and puppet Beijing Special Municipal Public Administration Bureau load, preparing to build the Andingmen Water Plant in the south of the Huangsi Barracks outside Andingmen. Due to economic difficulties, the construction of the water plant progressed slowly. By the end of 1947, only 9 water source wells, 1 water distribution machine room, 1 transformer room, 1 water distribution pipeline, and 1 suction well with a volume of 1,000 cubic meters had been completed. Due to the poor quality of the project, there were many problems during the trial operation at the end of 1948. It did not have water supply conditions and still needed to be built. The construction cost would be 100 billion yuan in gold yuan coupons at that time. As the Kuomintang government was in danger, the final construction came to nothing.

After the peaceful liberation of Peiping, the first major task of the water company was to quickly resume and build the second water plant (Andingmen Water Plant) to solve the water problem for 2 million people in the capital.

At that time, the water company appointed Tao Zhuo, Xu Aimin, and Hu Xifeng as commanders, and formed a construction team of more than 30 people to conduct a comprehensive overhaul of all the newly built water supply facilities and equipment, repaired the power lines of 9 water source wells that had been bombarded, and improved the water supply and distribution. The pumps were overhauled and the water transmission and distribution pipelines were flushed. It took only three months to complete the entire construction project. It was officially put into water supply on May 1, 1949, making a great gift to the first May Day Labor Day after the founding of New China.

5. The first water tower achieved "war merits"

The first tap water tower in Beijing was the Dongzhimen Water Plant Water Tower. It was designed by a German designer and built in 1910. The tower is 54 meters high and has a volume of 750 cubic meters. The water tower is a steel structure water tower. There is a very solid high platform under the tower body, embedded with Sanhe soil, covered with pink granite, and the edges are ground into rounded moldings. The tower body has six floors, each floor is hexagonal, six There are 12 decorative dragons inlaid on the top of the tower (2 on each side, meaning two dragons playing with pearls); there are foldable seats on the verandah platform on each floor, where you can take a nap after climbing the tower. Not only can you enjoy the cool air, but you can also You can enjoy the scenery; each floor of the water tower is decorated with 12 copper bells, and there are 2 hanging on each tower corner. There are small bells on the first to fifth floors, and large bells on the sixth floor. Every time the breeze blows, the hanging bells jingle. Not only is it very pleasant to listen to, but it can also alarm birds so that they don’t dare to build nests here, thus avoiding the disadvantages of bird droppings contaminating the tower body. The weight of the tower plus the weight of water exceeds a thousand tons, but there are only 64 Φ1.5″ bolts at the support, which fixes the entire tower to the steel plate buried underground. It has stood still for more than 50 years. Its design and construction technology are amazing!

The water tower was discontinued in 1942, but on the eve of the liberation of Peiping in 1948, the People's Liberation Army Peiping Aviation Command stationed here for half a year, using the water tower's height observations and calculations. The number of air bombs dropped by the Kuomintang made great contributions to the peaceful liberation of Peiping. In 2003, an old comrade who had fought in the Peiping Aviation Command made a special trip to the old water tower site to relive the scene of the battle, but it was a pity. The water tower was demolished as early as 1957. Fortunately, in September 2003, the design drawings of the water tower were donated to the Water Supply Group by the German Embassy, ??which finally made up for the shortcomings of the water tower being demolished.

Regarding the removal of the water tower, relevant departments have organized many discussions after liberation. There are three main opinions: First, if it is retained as a cultural relic, its steel structure building needs to be repaired and maintained every 5-8 years. The paint alone costs 30,000 yuan to repair once. Is it worth it for a decommissioned water tower just for people to watch or to evoke nostalgia? The second is whether the water tower itself can be classified as a cultural relic; the third is whether the water tower itself can be classified as a cultural relic. The water tower should be preserved as a cultural relic. In the end, due to the high cost of maintenance and the tight supply of steel in the country, the tower was demolished and 229 tons of steel were removed to support the national economic construction. Beijing's water supply industry has been waiting for 40 years. Forty years later, with the trauma of the war, Beijing's water supply industry ushered in the dawn of development in New China. On the May Day in 1949, Mayor Ye Jianying personally participated in the May Day celebrations of North China Electric Power and Beijing Water Company. " Festival Conference.

In the 50 years since the founding of New China, especially the 20 years of reform and opening up, Beijing's water supply industry has advanced at an unprecedented speed, and its water supply capacity has increased sixty times in fifty years. Successively The third, fourth, fifth, sixth, seventh and eighth water plants, Changxindian Water Plant, Chengzi Water Plant, Nankou Water Plant, Tamurashan Water Purification Plant and Fengtai Water Plant were newly built, especially the ninth water plant was completed and put into operation , marking that the capital's water supply industry has reached the international modern level in many aspects such as technology, technology, management, and water quality testing. As of August 1999, Beijing had 14 water plants, with a daily water supply capacity of 3 million cubic meters in the urban area, an annual water supply of more than 700 million cubic meters, a total length of water supply pipelines of 6,042 kilometers, and a water supply service area of ??540 square kilometers. The service population is more than 8 million, and the water penetration rate in urban areas reaches 100.

1. Entering the hospital from a public water station

Old Beijingers may still remember that in the early days of liberation, creaking wheelbarrows could be seen from time to time in the alleys of Beijing.

The person pushing the cart has a rope on his shoulder, and two water troughs are placed on the left and right sides of the wheel, with two wooden water basins on top. This is the scene of "water trucks" delivering water. The water in the water truck is brought up from the "well nest", which is a simple shallow earth well that uses a water press to draw water.

In 1949, public water stations were installed in the Longxugou area of ??Nancheng, Beijing, as one of the first experimental areas, marking the beginning of universal water supply in the city. By 1967, 2,677 water stations of various sizes were installed in Beijing's urban area, and the water penetration rate in the urban area reached 99.96. Even after the water station was built, people still carried water on their shoulders, and some even went to a street station a hundred meters away to get water. It was even more difficult to get water in winter.

In 1973, in order to improve the quality of life of residents, the water company successively retrofitted public water stations in batches and connected them to each household's courtyard. By 1984, all public water stations within the Third Ring Road had access to the hospital, and people in the capital could now drink sweet tap water without leaving the hospital. Nowadays, tap water pipes have been connected to thousands of households, and residents can turn on the faucet to have tap water flow out without leaving their homes. It must be difficult for young people to imagine the difficult situation when using tap water.

There was a "water shortage" in the 1920s, 1970s and 1980s

In the 1970s and 1980s, Beijing's water resources faced an extremely embarrassing situation, and citizens had a water crisis. Due to over-exploitation, the groundwater level has been declining year by year, shallow wells have dried up, deep wells have reduced water output, and untreated industrial and domestic sewage has been discharged. Many wells on the Yongding River alluvial fan have been scrapped due to pollution. In the 1970s, a funnel area of ??1,000 square kilometers had been formed in the urban area; by the summer of 1981, the urban depressurized water supply area reached 212 square kilometers, accounting for 55.5% of the urban water supply area.

Although the city has invested a lot of money to build the Eighth Water Plant with a daily water supply capacity of 500,000 cubic meters and the Tamurayama Water Purification Plant with a daily water supply capacity of 170,000 cubic meters, it still cannot meet the demand, and even 70 In the late 1990s and early 1980s, a serious "water shortage" occurred in the urban area. At that time, more than half of the urban areas had reduced pressure water supply or limited water supply within a limited time. 30 completed buildings could not be used due to lack of water; residents living in Qinghe, Banbidian, Shilibao, Longzhaoshu and other places had to get up in the middle of the night to collect water. . The water crisis continued until the first phase of the Ninth Water Plant was opened in 1990, and the contradiction between supply and demand of tap water was alleviated, and safe and stable water supply was guaranteed.

3. The Ninth Water Plant, the largest surface water plant in Asia

In order to solve the water shortage problem in Beijing, in 1984, the Beijing Municipal Government decided to build the Ninth Water Plant with a daily water supply capacity of one million cubic meters. Nine water plants. The project officially started in May 1986, with a total investment of about 6 billion yuan. The project was constructed in three phases. Each phase was designed with a daily water supply capacity of 500,000 cubic meters. By June 1999, all three phases of the project were completed, with a daily water supply capacity of 150,000 cubic meters. Ten thousand cubic meters, accounting for "half" of Beijing's urban water supply capacity. Its completion has fundamentally alleviated Beijing's water shortage. It has now become one of the largest modern large-scale drinking water plants in Asia with the most advanced equipment and the best water quality. It plays an important role in the economic construction and urban development of the capital. plays an important role.

The Ninth Water Plant uses Miyun Reservoir as its water source and builds water intake plants at Miyun Reservoir and Huairou Reservoir respectively. Through a DN2600mm×33Km ductile iron pipe and three DN2200mm×42Km steel pipes, the raw water is sent to the Ninth Water Purification and Distribution Plant. In terms of tap water treatment process, the Ninth Water Plant not only adopts the conventional water treatment process of dosing-coagulation-clarification-filtration, but also adopts the deep purification process of activated carbon adsorption and chlorination disinfection to further remove astringent substances in the water. , smell, taste and various organic matter are removed, and finally the clean water produced that meets the national drinking water hygiene standards is sent to the urban water distribution network.

4. The tree-like pipe network changes into an annular shape

Since the founding of the People's Republic of China, water companies have not only increased the water supply capacity of urban areas, but also increased the laying of urban water supply pipelines. Continuously increase the density of water supply pipe networks.

From 364 kilometers on the eve of liberation, it rose rapidly to 6,042 kilometers in 1999, an average annual increase of more than 110 kilometers, equivalent to 12 times the average annual paving in the 40 years before the founding of New China; the scope of water supply was limited to the central area of ????urban areas before the founding of New China. It has developed to an area of ??more than 500 square kilometers in the suburbs of the city.

Before liberation, Beijing’s water pipe network had a dendritic layout. The water pipe network was dense in the east and sparse in the west. The water pressure was high in the east and low in the west. The water flow was one-way from east to south and west, and the service pressure was extremely uneven. . With the construction of the third and fourth water plants and the laying of main water supply main pipes, in 1958, the annular water supply pipe network within the urban third ring road had been roughly formed; by 1989, the annular pipe network with a diameter of more than 1 meter had The network has been basically completed; now, the water supply pipelines of the Fourth Ring Road have been fully connected, and all the water supply pipelines in the urban area have been connected into a spider-shaped ring pipe network. The interconnected water supply pipe network not only balances the regional service pressure, but also reduces the water supply radius of all water plants in the urban area, effectively implements complementary complementary water supply, and improves the reliability of safe water supply.

5. Localization of water meter production

In the beginning, water meters were mainly focused on management and maintenance. Jingshi Water Co., Ltd. began to provide water in 1910, but the water sales were not measured by meters. They adopted the method of pre-selling water tickets to users and selling water based on the tickets in the future. After that, the water stamp was canceled and the water fee was calculated on a monthly basis for users, which was 1.2 silver yuan per household per month. In 1940, the Peiping Special City Water Supply Management Bureau began to implement water metering for renting and selling water. Therefore, a water meter section was established in 1942 to be responsible for the testing and management of water meters. The water meters used at that time were from eight countries including Japan, the United States, the United Kingdom, Germany, and France. More than 30 kinds of water meters in the country. In 1949, the Water Meter Unit was established and began to repair water meters. At that time, there were only 21 employees and the meter repair equipment was rudimentary, with only a machine tool, a meter dropping machine, and a meter inspection machine. In 1953, a user section water meter section was established, and the number of water meters repaired per month reached 700. Until 1958, as the watch repair process was changed to a streamlined operation, the number of watch repairs greatly increased.

In 1958, the water meter section sent Li Wencheng and other relevant personnel to Shanghai and Guangzhou water companies to visit and learn water meter manufacturing technology. In May of the same year, after Gao Shen, secretary of the party committee of the water company, gave a mobilization report on the general line of the Great Leap Forward, all employees got rid of superstition, emancipated their minds, became self-reliant, and worked hard and skillfully. Finally, on June 11, 1958, the first domestic caliber was produced. It is a 15mm Dongfeng brand water meter. This water meter is a wet meter with a maximum cumulative measurement of 1,000 cubic meters and a minimum scale of 1 liter. The quality of the water meter exceeds the level of similar domestic products. After the water meter was successfully developed, 10 pieces were produced in small batches as a gift to the Party's birthday on July 1, 1958, and the production of 1,000 water meters was completed that year.

Since the successful development and registration of Jingshui brand water meters in the 1970s, domestic water meters in Jingcheng have developed rapidly. A full range of 15~200mm cold and hot civil and industrial water meters, automatic recording pressure gauges, There are more than 20 varieties and hundreds of specifications of Jingshui brand water meters, including IC card water meters and far-transmission water meters, with an annual output of more than 600,000 pieces. They occupy about 70% of the Beijing water meter market and are exported to 28 provinces and cities across the country and exported. South American countries and regions. On August 26, 1999, Beijing Water Supply Group Co., Ltd. was officially established and listed, starting a complete change in mechanisms and systems, transforming from a planned economy that relied on government subsidies to a market economy that was responsible for its own profits and losses. The reform has injected new vitality into the capital's water supply industry. The Municipal Water Supply Group has put forward the slogan of "ensuring the capital's water supply and striving for first-class services", and on the one hand, it has accelerated the construction of water supply infrastructure. Over the past five years, *** has invested nearly 5 billion yuan in capital construction and technological transformation, and added more than 1,000 kilometers of new water supply pipelines. On the other hand, relying on the power of science and technology, it has continuously improved the level of external services and allowed citizens to drink safe water. At the same time, enjoy higher standards of service. As of 2004, the Municipal Water Supply Group had 18 water plants, with a daily water supply capacity of 2.68 million cubic meters (affected by water shortages, water supply capacity has declined), a total pipe network length of 7,065 kilometers, and a water supply service area of ??more than 600 square kilometers. , the urban tap water penetration rate has reached 100%.

1. Water quality testing has reached the international advanced level

In 1910, there was only one laboratory technician for water quality testing, and his responsibility was only to "test its ingredients three times a day, morning, noon and night." Clean the water, patrol the pool, and prevent contamination." In 1935, laboratory equipment for bacterial testing was purchased and bacterial testing began. In 1937, laboratory technicians were hired, but there were only 6 testing items, and all were manual operations. Testing methods and facilities The level is extremely backward; in the 1950s, the Beijing Water Supply Company put forward the slogan "water quality is the soul", and at the same time established a water quality department, and each water plant set up laboratories, making great progress and progress in water supply quality, water quality inspection, and water source protection. develop.

Up to now, the Water Supply Group has formed a complete and strict management system for water supply quality testing, comprehensively and systematically put forward strict requirements for the water production process, and established a water quality monitoring center, water plant The laboratory and operation team have a three-level water quality testing assurance system, with a team of 1,000 water treatment technology professionals and more than 100 water quality testing professionals. They operate in three shifts day and night, carefully, carefully and strictly monitoring the water quality to ensure that the quality of the factory water is qualified. In terms of testing methods, the water quality monitoring center is equipped with advanced instruments and equipment, including gas chromatography, atomic absorption spectrophotometer, ion chromatography, liquid chromatography, radioactivity analyzer, electron microscope and other modern instruments. In 1999, the Water Quality Monitoring Center was accredited by the National Laboratory Accreditation Board and obtained the qualification of a national laboratory. At present, the number of water quality testing projects of the Water Supply Group has increased to 117, far exceeding the 35 testing standards stipulated by the state and reaching the international advanced level.

2. High-tech solutions to secondary pollution of indoor water supply pipelines

Beijing cities can meet national drinking water standards from factory water from water plants to tap water in main water supply pipes, while some The water supply pipelines in the building that have been under construction for a long time have caused secondary pollution to the tap water due to aging and corrosion. Transforming indoor tap water pipelines to solve the secondary pollution of tap water is a difficult problem that plagues the domestic industry. In the spirit of doing practical things for the people, and in order to find a solution as soon as possible, the Water Supply Group began to develop indoor water supply pipeline renovation technology in 2002.

In 2003, based on multiple market surveys, demonstrations and repeated tests, the Water Supply Group decided to use "cyclone" technology to remove rust and spray lining processes for existing indoor pipelines in urban buildings. The transformation avoids secondary pollution of tap water during transportation. This technology can remove scale and rust on the inner walls of pipes without damaging walls, roads and building decorations. It also has the function of self-repair for hard-to-find "pinhole" leaks, which not only ensures the quality of tap water, but also It solves the problem of no water or micro water caused by some users due to blockage of water supply pipes and smaller inner diameter. In addition, in order to ensure that the transformed pipelines meet the national drinking water generation standards, the coatings used by the Water Supply Group have been reviewed by the Ministry of Health and comply with the relevant provisions of the "Drinking Water Hygiene Supervision and Management Measures" and have reached national food grade standards.

At the end of 2003, 72 households in Building 6, Zuojiazhuang West Street became the first beneficiary in the city; in 2004, the Municipal Water Supply Group continued to vigorously promote the process of indoor water supply pipeline renovation, and successively completed the grassroots projects. The indoor pipeline renovation project of 275 residential buildings in 48 communities, including Qiao Community, Yangqiao Fuhai Community, Yuquan Road Zhaofeng Garden, Huigu Sunshine Residential Community, Heyi West District, and Futou, has significantly improved the drinking water quality of more than 40,000 residents. improve.

3. “Check the meter without leaving the house, and pay without leaving the house”

In the past, each household had to take turns to check the meter and collect the water bills. Many residents were quite concerned about this. criticism. In order to improve service levels, the Beijing Water Supply Group started from August 2000 to June 2001, and implemented the "meter check and household registration" work for 1.3 million building residents in the city. With the continuous improvement of people's living standards and cultural quality, modern people have higher and higher requirements for the quality of the living environment, and they also have different views on household check-up, such as disturbing people and unsafe issues when entering the house, and manual check-up is inevitable. The situation of "wrong copying, missing copying, undercopying, and underestimating copying".

In 2003, the Municipal Water Supply Group began to use wired remote transmission water meters, wireless remote transmission water meters, power carrier remote transmission water meters and IC card water meters to replace traditional water meters, replacing traditional meter lookup methods with high-tech means, and gradually Achieve "checking the meter without entering the household". By the end of 2004, more than 50,000 IC card water meters and more than 20,000 far-transmission water meters had been installed throughout the year.

In order to facilitate residents to pay water bills, in 2003, the Municipal Water Supply Group successively signed water bill collection agreements with 9 financial institutions. So far, Beijing has 11 banks and 1 enterprise (Beijing The 2,664 outlets of the Post Office collect water bills, which greatly facilitates users. In February 2004, the Municipal Water Supply Group and China Everbright Bank implemented POS machines for self-service payment of water bills in the Sanlihe District 1 community. 500 residents did not have to wait in long lines at the bank to pay water bills; by the end of 2004, there were 80 A POS machine is installed in the community. In addition, the Municipal Water Supply Group will also complete the upgrade and transformation of the marketing payment accounting system, build an information platform with banks, and gradually enable users to "pay without leaving home" through online transfers and phone payments. At present, Beijing Water Supply Group Jinyang Water Company (Yanqing) has taken the lead in enabling residents to "pay water bills without going out".

IV. Water supply service line

In order to continuously improve the level of water supply services in the capital and provide citizens with better services, on September 28, 2002, on the basis of the original repair service center , Beijing Water Supply Group officially established the "Water Supply Service Hotline". Its functions have been expanded from the previous single repair and emergency repair business to the tap water repair and emergency repair dispatching command center, water supply business consultation center, user complaint center and user reporting center, through the computer network system Remote management, time limit control and dynamic tracking of each maintenance station and gate team provide a multi-level and all-round water supply service for the society. It is a bridge and link between the water supply group and the majority of users.

As long as you call the water supply service hotline, you can get satisfactory answers to your tap water supply problems here. In the more than two years since its establishment, the water supply service hotline has received more than 280,000 messages of various kinds, including more than 80,000 repair reports, more than 170,000 consultations, more than 4,000 complaints, more than 800 reports, and others. There are more than 20,000 messages, and the number of messages received has more than doubled in the past three years; the timely processing rate of repair reports, user consultations, complaints and reports has reached 100%, realizing the Beijing Water Group's "response to every call and emergency response" "Help" social commitment.

In order to encourage the general public to actively participate in reporting water leakage and reporting illegal water use, the Water Supply Group has also set up a special fund of one million yuan reward for the water supply service hotline to provide information on water leakage in the pipe network, privately change the nature of water use, and divert water supply. , The first person whose water theft information is verified to be true will be rewarded with a certain proportion of rewards. So far, more than 1,900 people have received rewards, with the reward amount reaching more than 100,000 yuan. A citizen reported water theft from a certain unit, and after it was found to be true, more than 500,000 yuan in water bills were recovered. The resident received an award of 11,449 yuan; a citizen reported water theft at a construction site, and was awarded 1,840 yuan... Through reports from the general public, the group has been able to recover money in the past two years. The economic loss was approximately more than 1.2 million yuan.

5. Use GPS for pipe network emergency repair

Whether the leak point is found quickly and accurately is an important factor in reducing water leakage losses in the pipe network. In 1988, Beijing Water Group began to develop the "Urban Tap Water Distribution Pipe Network Management System"; in 1991, this system passed the technical appraisal of the Beijing Municipal Science and Technology Commission and was officially put into operation; in 1995, all basic data of the pipe network were input into the computer . The application of this system has changed the manual drawing of pipeline diagrams and statistics of various data into computer management, and its work efficiency has been increased by more than 8 times and 200 times respectively. It can also replace manual efforts to formulate emergency gate closing plans, making the gate closing more timely. , reducing water leakage losses by 680,000 cubic meters per year.

In 2004, Beijing Water Supply Group upgraded the system based on the "Urban Water Supply Pipe Network Management System" and developed the "Urban Water Supply Pipe Network Geographic Information Management System", or GIS Geographic information management system. Its successful development has enabled the sharing of water supply pipe network information and other system resources.

At the same time, in order to cooperate with this system, a GPS satellite measurement and positioning system was also established to provide technical support for rapid gate positioning, search for pipeline network equipment that is buried or without obvious reference objects, and to win valuable time for quick and timely repairs.

"The clear spring reflects the past and present", writing the vicissitudes of history. The capital's water supply industry has gone through a history of nearly a hundred years. It has experienced the rise and fall of old China, and has also basked in the bright sunshine of New China's flourishing socialist construction. It has grown from scratch, grown from small to large, and has become a witness to history. Today, in accordance with the relevant policies of the central government and Beijing Municipality, Capital Water Group is taking advantage of the reform and opening up. While strengthening its main business of water supply, it is also actively involved in the fields of sewage treatment and reclaimed water production, further extending the group's industrial scope. The group has invested heavily in acquiring water companies in Yanqing, Huairou, Miyun and Fangshan. There are currently 18 water plants with a daily water supply capacity of 2.68 million cubic meters. It has acquired sewage treatment plants in Yanqing and Miyun, and invested in the Mencheng sewage treatment plant. The total daily sewage treatment capacity has reached 115,000 cubic meters; the largest reclaimed water company in Beijing has been established, with a daily reclaimed water supply capacity of 170,000 cubic meters. At the same time, the group plays the role of a professional consulting organization and hires specialized personnel to help the group company carry out systematic planning of development strategies and corporate culture, outline a clearer development blueprint for the group company, and proposes to "achieve the separation of primary and secondary tasks." ", focus on the main business, liberalize and revitalize the auxiliary business, rely on core technologies, extend related products and services, face the market, and constantly expand new development space" work ideas. This will make the reform focus of the group company clearer and the development goals clearer. , laying a solid foundation for the group's future sustainable and coordinated development. World-class water plants, high-tech pipe network management, and high-quality water supply services not only deliver high-quality, pure tap water to the people of Beijing, but also bring new vitality to Beijing's urban construction.