Overseas Network 2015-08-11 08:08:47
Nanshixi, which supplies water for Taipei City, carries a lot of mud and sand, and its color is comparable to coffee.
Overseas Network, August 11 According to Taiwan media reports, Typhoon Sudiro caused the collapse of soil and rocks in some areas of Taiwan. Nanshi Creek, which supplies water for Taipei City, carried a large amount of silt and sand. The turbidity of the raw water once soared to 39,300 degrees, and it was 10,000 degrees for 12 consecutive hours, several times that of the water purification site that can carry 6,000 degrees. Citizens who are afraid of drinking "coffee water" have rushed to buy mineral water in the past two days. Although the Taipei City Water Department emphasized on the afternoon of the 10th that "the water quality is clean and you can drink it", citizens do not believe it, and there are still constant people buying water in the evening.
70% of the water used in Taipei City comes from Nanshi Creek. Compared with the stable water quality of Beishi Creek, Nanshi Creek is fragile due to the surrounding soil and soil, which can easily cause soil and rock collapse in heavy rain, seriously affecting the turbidity of the stream. Xu Dengfa, head of the Beishui Water Purification Section, pointed out that at 7 a.m. on the 8th, the turbidity of the raw water reached 10,000 degrees, and soared to 39,300 degrees at 8 o'clock, far exceeding the 6,000 degrees that the Zhitan Water Purification Area can handle. It was not until 30 hours later that the turbidity dropped to 3,000 degrees.
According to statistics, the turbidity of the raw water of Nanshixi River in 2008 and the turbidity of the Sula in 2012 also caused the turbidity of the raw water of Nanshixi River to rise to 12,000 degrees, but the turbidity dropped to 3,000 degrees within 2 or 3 hours. Chen Manli, deputy director of Beishui, said that she has served Beishui for 30 years and has never seen 39,000 degrees of raw water.
Xu Dengfa said that on the morning of the 8th, the two water purification facilities in the water purification site were first closed, and in the afternoon, all six water purification facilities were closed, and the five facilities were not resumed until the early morning of the 9th. The purpose of closing the water purification facilities is to reduce the turbidity of silt and sand sediment and raw water turbidity, but Beishui did not promptly inform citizens that "water cannot be drunk", which attracted encirclement and suppression by Taipei City Councillors.
City Councilmen Wang Hongwei, Chen Chongwen and others held a press conference on the 10th, pointing out that the Taipei City Government did not notify the public not to drink until the afternoon of the 8th, and did not dispatch water trucks for the public to fetch water. They criticized the city government for just waiting for the turbidity to decrease, and the response was half a beat slow.
Chen Chongwen said that a netizen who lives in the mountain left a message to him, saying that his son was only 4 months old and he didn't dare to soak milk for his children to drink when he saw the water was so turbid. However, the supermarket had already bought all the mineral water, and even the external passage was blocked, so he really didn't know what to do.
North Water Director Chen Jinxiang said that to solve the problem that the turbidity of raw water is too high, the "takeover" plan of Jade Reservoir should be restarted. Through specialized pipes, the water from the reservoir should be directly directed to the Zhitan water purification site, which will avoid the situation of mixing with the Nanshi Creek water on the way and affecting the water quality. He proposed this idea to Taipei Mayor Ke Wenzhe on the 10th.
Beishui said that as of 5 pm yesterday, the turbidity of raw water had dropped to 2,000 degrees, and the average turbidity of clear water was 0.1 to 1.0, which met the drinking water standards, but citizens were still "feared". Quanlian Store located on East Nanjing Road urgently transferred 360 boxes of mineral water to trucks on the evening of the 10th, with a total of 432,000 liters of drinking water, and sold all within an hour.
For citizens drinking dirty water, the North Water Department is also discussing a plan to reduce tap water fees. It will be leniently determined as a disaster compensation and is expected to be announced within 3 days.
