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Received a report in the beginning of June on tap water in the black house, an unfamiliar visitor . It is said that black powder is mixed in tap water at home. I checked the video. The moment I turned on the faucet from the sink, black powder mixed with water. Dozens of videos have already been uploaded as a result of checking these videos through the Mamcafe in Yangju, Gyeonggi Province. Most of them were apartment complexes in Yangju, Gyeonggi Province. Occasionally, there was a report that black powder was also found in Uijeongbu and Dongducheon. In common, black powder occurred between late May and early June.

● "Black powder, who the hell are you?"

Most of the informants were housewives. Housewives were astonished when they saw the black powder. This is because the tap water is boiled to make barley tea and the children are washed in the bathtub. On June 3, I visited the informant's family home. As you can see in the video,'black powder' was mixed. Black powder adhered to the edge of the sink over time to form a band. The black powder that was stuck because of oiliness was not easily removed.
● A nightmare a year ago, a red tap water in Incheon and a black tap water in Pohang

This is the moment when a nightmare comes to mind. It was because at the end of May last year, red tap water poured into the Incheon area, causing trouble. The situation in red water in Incheon was talented. This is because the water system was changed excessively at the water purification plant. In the process, the sediment that had adhered to the bottom of the water pipe flowed into the home. The problem of red tap water ended in two months, but the number of households affected was 260,000.

The black water incident in Pohang occurred in September of last year. The damage cases that the color of tap water comes out black continue. Pohang City said there was no problem with water quality, but the joint investigation by the private investigation team revealed that the cause was due to the manganese accumulated in the water supply pipe and the reservoir.
● What is different from the black powder tap water in northern Gyeonggi?

What is the difference between the black powder from the tap water in a family house in the northern part of Gyeonggi-do and Incheon and Pohang? The Water Resources Corporation's Yangju Water Management Corporation says there are consistent characteristics in every household where complaints are filed. The black powder comes out only when hot water is turned on. Based on this, it is judged that there is no problem with the tap water itself introduced from the water purification plant itself. The Yangju Water Management Division expected that foreign matter had entered the process of tap water flowing through the hot water piping of each apartment and commissioned a detailed inspection.

Yangju Water Management Corporation conducted a detailed analysis on black powder on June 3. Samples were taken from 5 apartment homes in Yangju-si, Gyeonggi-do. As a result of component analysis, the average proportion of carbon compounds was 91%. The Water Management Division estimates that carbon compounds are a kind of'rubber debris' and estimates that some of them fall out of the rubber packing of the faucet in an apartment house. Accordingly, the Water Management Division recommended replacing the faucet individually or cleaning the hot water pipe in consultation with the apartment management office. The water quality test was also announced.

● Black powder tap water? Residents in the region

seemed to end the situation by announcing the results of the analysis by the Yangju Water Management Corporation of the Water Resources Corporation. But the locals revolt. It is claimed that there is a family house where black powder comes out even when cold water is turned on rather than hot water. One of the mam cafes in the Yangju region conducted their own survey (*115 respondents). 66% of respondents answered'black powder comes out of both cold and hot water.' In addition, 27% of households have replaced faucets (faucets, showers, etc.) within a year. Based on the survey, residents claim that black powder is not simply a problem with hot water piping at home.

●​ Do you have any questions about black powdered tap water and unsolved questions?

There is also a question that has not been solved coolly. More than 80 complaints of black powder were received by the Yangju Waterworks Management Corporation. So, was it that 80 households coincidentally had the problem of piping or faucet at the same time? Black powdered tap water has been occurring in several apartment generations at the same time since the end of May. In this regard, the Water Management Corporation has not yet been able to provide a clear answer.

● "Let's do one more inspection" The newly formed Citizen

Verification Group Water Resources Corporation Yangju Water Management Division agreed to conduct another verification of tap water when the residents were dissatisfied with the results of the analysis of black powder. About 10 residents, Uijeongbu, Yangju, and Dongducheon environmental coalition officials and water quality experts are expected to participate. This time, we plan to conduct water quality inspections in water purification tanks in each apartment, including collecting black powder.

It should be highly appreciated that the Water Resources Corporation and Yangju City Hall agreed to form a citizen verification group and actively take action. However, as the concerns of the residents still remain, it is necessary to provide more clear results for the areas that are not sudden. I need to explain the fact that black powder appears in cold water, black powder appears in homes that have just been replaced with faucets, and black powder appears in multiple apartments simultaneously.

Even at the beginning of the tap water incidents in Incheon and Pohang last year, the local government's position was'There is no problem with water quality.' However, there were 260,000 households affected by Incheon's red tap water. Manganese were also detected in Pohang. The black powder situation in the northern part of this game should not follow the case of Incheon and Pohang last year.

● Ultimate Goal: To prevent black powder from appearing in

tap water The goal is the same for both the Water Resources Corporation, Yangju City Hall and residents who manage tap water. It is to gather power so that black powder does not come out. When the complaint was received, the Water Resources Corporation moved quickly to enter the water quality inspection, and residents also collected damages from the online community and actively cooperated in water quality investigations. It is a moment to gather wisdom together with the idea of'a team' rather than distrust of each other.