Whether there is pollution in the Wutong River and the pollution situation of the Wutong River

Project Number: 4403002003042903 Project Number: 4403002003033109 Project Name:

Wutongshan River Basin Water Pollution Control Project (2 bids) Project Name: Wutongshan River Basin Water Pollution Control Announcement Time: May 13, 2003 to May 15, 2003 Bidding Method:

Scope of public bidding: general contracting of municipal public works construction; Project Overview: Total Project Investment:

27.44 million yuan Bidding part Estimate: 10 million yuan Project location: Dawang Village Area, Wutong Mountain, Luohu District, Shenzhen Estimated start and completion date:

June 1, 2003 to October 31, 2003 Scale: Structure: Project Quality Requirements:

Qualified Bidding Announcement Document Collection Location: Room 103, Building 5, Environmental Protection Bureau Compound, Honggui First Street, Honggui Road, Collection Date: May 13, 2003 to May 15, 2003 Afternoon:

08:30 a.m. to 11:30 p.m

From 14:30 to 17:00, the bidding applicant must have the following conditions:

Level 2 General Contracting of Municipal Public Works Construction; The level conditions that the project manager must have: the date, time and place of receiving the secondary prequalification documents are the same as the date, time and place of receiving the bidding announcement documents. Prequalification documents for sale:

On May 22, 2003, the legal representative of the tenderer: Fan Junjun Contact: Forestry Industry Contact Tel:

82050956 Bidder: Shenzhen Municipal Environmental Protection Bureau.

1. The water quality is mainly affected by point sources such as industrial wastewater and domestic sewage, non-point source pollution (urban rainwater, farmland retreat, etc.), and river endogenous sources (river bottom sludge, ship garbage, wastewater) pollution.

2. The hazard is to destroy the natural ecosystem of the river, and adversely affect the benthic organisms, swimming organisms, phytoplankton, fish resources, and the water use targets in the lower reaches of the river, especially the drinking water source.

During the rainy season every year, residents in some low-lying areas in the Northwest New Territories and North New Territories are at risk of flooding. The Drainage Services Department (DSD) of the Hong Kong Special Administrative Region (HKSAR) has indicated that it will invest $9.2 billion in flood prevention works in the northern New Territories, including projects with a total value of $3.3 billion for which planning and design works are currently underway. Among them, the works in the upper reaches of the Sycamore River near Tin Ping Village, which was severely flooded in June last year, are estimated to be completed before the rainy season next year, when it will be able to cope with the heavy rainfall that occurs once in 50 years.

The treatment works in the upper reaches of the Wutong River mainly include widening, straightening and deepening the channel. Although the works will not be completed until next year's rainy season, they are now able to cope with the heavy rain that occurs once in 50 years (i.e. equivalent to 85 millimetres of rainfall per hour), and it is believed that it will be able to cope with the rainfall of 109 millimetres per hour after the completion of the works. The Development Department said that since Sun Fook Kong (Civil) **** took over the Guangdong Water Conservancy Company with financial problems in September last year, the progress of the project has been satisfactory.

However, they will continue to monitor the progress closely; The department plans to apply for an additional funding of $169 million from the Legislative Council in early May, bringing the total amount of works to over $750 million. In addition, the third phase of the Shenzhen River project and the Pingyuan River channel project will also be completed in 05.

The Deputy Director of Drainage Services, Mr Cheung Tat Kam Kim, said that with the above-mentioned river improvement works, it is believed that the flooding situation will improve this year, and some low-lying areas such as Ma Tin Tsuen, Mai Po Lao Wai and Wang Chau Tsuen will still be flooded due to the uncompleted works, but there should be no more flooding of large areas or even the entire village. The impact of heavy rainfall on these areas depends on the presence of siltation in the nearby drainage system, and in general, if the rainfall reaches 70 millimetres per hour, the possibility of flooding is very high.