Environmental Monitoring Report PRC: Anhui Hefei Urban Environment

Environmental Monitoring Report

Project Number: 36595 July 2009

PRC: Anhui Hefei Urban Environment Improvement Project

Prepared by Hefei Municipal Government With the assistance of Hefei Municipal Research Institute of Environmental Protection PRC

For Hefei Municipal Government Hefei Urban Construction Investment Company Hefei Chao Lake Ecological and Environmental Improvement Construction and Administration Bureau Hefei Xincheng State Assets Operating Co. Ltd.

This report has been submitted to ADB by the Project Management Office of Hefei Municipal Government is made publicly available in accordance with ADB’s public commun ications policy (2005). It does not necessarily reflect the views of ADB.

Hefei Urban Environment Improvement Project under ADB Loan External Environment Monitoring Report

Hefei Urban Environment Improvement Project under ADB Loan

External Environment Monitoring Report (3rd Report)

Hefei Municipal Research Institute of Environmental Protection

July 2009

Hefei Municipal Research Institute of Environmental Protection 1 Hefei Urban Environment Improvement Project under ADB Loan External Environment Monitoring Report

Hefei Urban Environment Improvement Project under ADB Loan

External Environment Monitoring Report

Table of Contents 1. PURPOSE OF MONITORING ENVIRONMENTAL IMPACT. 3 2. PROJECT PROFILE ...... 3 2.1 BACKGROUND ...... 3 2.2 OVERVIEW OF THE PROJECT ...... 4 2.3 ORGANISATIONAL STRUCTURE OF THE PROJECT...... 4 2.3 PROGRESS OF THE PROJECT...... 4 3. ENVIRONMENTAL MANAGEMENT MEASURES...... 9 3.1 PURPOSE OF ENVIRONMENTAL MANAGEMENT ...... 9 3.2 ENVIRONMENTAL MANAGEMENT MEASURES ...... 9 4. ENVIRONMENT PROTECTION TARGET...... 13 5. PARTICULARS OF THE ENVIRONMENT MONITORING . 15 5.1 SURFACE WATER ENVIRONMENT MONITORING...... 15 5.3 LEACHATE ENVIRONMENT...... 16 5.4 ATMOSPHERIC ENVIRONMENT...... 16 5.5 NOISE POLLUTION ...... 16 7 CONCLUSION AND EVALUATION ...... 18 7.1 FINDINGS OF SURFACE WATER ENVIRONMENT...... 18 7.2 FINDINGS FROM UNDERGROUND WATER ENVIRONMENT MONITORING...... 20 7.3 FINDINGS FROM LEACHATE ENVIRONMENT MONITORING ...... 21 7.4 FINDINGS FROM ATMOSPHERE ENVIRONMENT MONITORING ...... 22 7.5 FINDINGS FROM NOISE ENVIRONMENT MONITORING ...... 23 7.6 FINDINGS OF SOIL ENVIRONMENT MONITORING...... 24 7.7 MONITORING SUMMERY ...... 25 8. CONCLUSIONS AND RECOMMENDATION ...... 26

Appendix 1: Monitoring Evaluation Standards and limit value Appendix 2: Photos of Hefei Urban Environment Improvement Project under ADB Loan

Hefei Municipal Research Institute of Environmental Protection 2 Hefei Urban Environment Improvement Project under ADB Loan External Environment Monitoring Report

1. Purpose of Monitoring Environmental Impact According to the environment management plan and relevant requirements specified in the Final Report of Technical Assistance for Hefei Urban Environment Improvement Project under ADB Loan, routine monitoring of the environmental impact of the Project is to be carried out over the course of the project construction period, as well as during the initial operations upon the completion of construction. In line with targets aimed at reducing the negative environmental impacts of the Project and in accordance with all the relevant specifications and standards of China, as well as the policies of the Asian Development Bank (ADB), environmental impact monitoring and data analysis must evaluate: (i) the effect of the environment protection measures and whether these comply with the requirements of the relevant laws and regulations; (ii) the development of the environmental impact of the Project; (iii) the overall effect of the project environment management plan during the construction period and pilot operations upon the completion of construction. External Environment Monitoring Reports for Hefei Urban Environment Improvement Project under ADB Loan have previously been submitted in July 2008 and December 2008 respectively. In order to prepare a 3rd report, and according to the ADB’s requirements, a 3rd field survey of the project site was conducted in June 2009. Site investigations into the environmental conditions within the project area and field monitoring of the environmental status of the site were carried out.

2. Project Profile

2.1 Background

As the capital city and industrial centre of Anhui Province, Hefei has a population of 4.5 million and administrates four districts and three counties, with an area of 7,029 km2. Hefei City is positioned between the Changjiang River and the Huaihe River and is approximately 15 km northwest of Chaohu Lake, one of the five major fresh water lakes in China. Hefei region has a generally flat topography, with an average altitude of 12~15m. Partly due to the flat topography of the region, Hefei is at an increased risk of urban flooding. Rapid urban and industrial development in the region has resulted in an increase in pressure on the capacity of municipal infrastructure in the city. In recent times, the issue of environment protection has become extremely critical, with Hefei now facing problems due to serious industrial and automobile air pollution. Untreated sewage is being discharged into the rivers and lakes and has started to endanger the availability and safety of drinking water supplies. Aware of the worsening environmental conditions, Hefei Municipal Government has formulated a complete trans-departmental environmental improvement program to help resolve the urban environment problems in accordance with national guidance and policy for the environmental protection and sustainable development of Hefei City. To this end, Hefei Municipal Government has defined a series of key projects. The proposed Hefei Urban Environment Improvement Project under ADB Loan is an important part of the above program. The Project will improve the environment in Hefei by improving the provision of municipal wastewater treatment, flood control and traffic services of

Hefei Municipal Research Institute of Environmental Protection 3 Hefei Urban Environment Improvement Project under ADB Loan External Environment Monitoring Report

Hefei City. In addition, the project will help to reduce poverty, increase employment, enhance investment and business opportunities in the city and reduce the probability of the population becoming infected by diseases associated with untreated sewage and poor atmospheric condition. Subsequently, the quality of life for Hefei residents should be significantly improved.

2.2 Overview of the Project

The Hefei Urban Environment Improvement Project encompasses four major componants: urban water resource management; sewage treatment; refuse disposal and environment improvement; and pipeline construction. Currently, 8 sub-projects have been defined: Urban Sewage Pipeline System Improvement Project; Comprehensive Renovation Project of Qingxi Road Landfill; Sili River Comprehensive Control Works; Banqiao River Comprehensive Control Works; Ershibu River Comprehensive Control Works; Shiwuli River Wastewater Treatment Plant and Pipeline Works Phase-I; Wangtang Wastewater Treatment Plant and Pipeline Works Phase-II; and Hefei Chaohu Lake Bank Ecological Environment Comprehensive Control Works.

2.3 Organisational Structure of the Project

For the organizational arrangemnet of the Project, please see Fig. 2-1 and Fig 2-2 below.

2.3 Progress of the Project

For the current progress of the Hefei Urban Environment Improvement Project, see Table 2-1 below.

Hefei Municipal Research Institute of Environmental Protection 4 Hefei Urban Environment Improvement Project under ADB Loan External Environment Monitoring Report

ADB NDRC&MFPRC

AGOF ADRC Hefei government

Leading group of HUEIP

HUEIPO

International consultancy Domestic consultancy expert expert

PMD OTD GFD

Project implementation units

Hefei Construction Hefei Bureau of Water Commission Resources

Hefei Bureau of Hefei Construction Management Bureau Priority Project of Chaohu Lake Bank Ecological Environment Comprehensive Control Works

Figure 2-1 Block Diagram of Organisational Structure of Hefei Urban Environment Improvement Project under ADB Loan

Hefei Municipal Research Institute of Environmental Protection 5 Hefei Urban Environment Improvement Project under ADB Loan External Environment Monitoring Report

Hefei Urban Environment Improvement

Project under ADB Loan

Hefei Urban Environment Improvement Project under ADB Loan

Figure 2-2 Block Diagram of Environment Monitoring System

Hefei Municipal Research Institute of Environmental Protection 6 Hefei Urban Environment Improvement Project under ADB Loan External Environment Monitoring Report

Table 2-1 Schedule of Current Works under Hefei Urban Environment Improvement Project (June 2009) Investment Works for the 1st Level of Sr. Work plans for the 2nd Sub-project as of June Works completed upon June 2009 half of 2009 in the fulfillment of No. half of 2009 2009 second report plan Urban Sewage Pipeline 65.07 Chuzhou Road and 12 other roadwaste pipe-networks 30% of the major 1 System million have been completed, pipe-network for Banqiao River Complete Final completion works completed Improvement Yuan west coast has been completed. Project Comprehensive Renovation 29.49 The works have been completed and passed acceptance 2 Project of million Acceptance check Complete / checks Qingxi Road Yuan Landfill Pipe-network ,river dredging and landscape engineering Sili River 96.81 landscape have been completed, 80% of the river-side road has Nearing 3 Comprehensive million engineering Final completion been completed, 85% of the pump station construction completion Control Works Yuan completion has been completed. Pipe-network andriver dredging have been completed. River-side Banqiao River 91.45 River-side The iver-side road has been temporarily suspended landscape works river-side road to be 4 Comprehensive million road not yet because of land aquistion problems.. River-side and river-side road completed Control Works Yuan complete landscaping works are nearing completion. completed Ershibu River The works have been started and technical scheme for 5.27 million 30% of major 5 Comprehensive engineering construction has been completed. Incomplete / Yuan works completed Control Works Pipe-network construction has been started

Shiwuli River Main works are nearing completion. The equipment has Wastewater 155.29 been installed. 25.47 km plant pipe-network has been Pipe-network Nearing 6 Treatment Plant million completed, 5.73km plant pipe-network is in progress. basically Acceptance check completion and Pipeline Yuan 80% of the pump station constriction on Feilong road has completed Works Phase-I been completed .and the equipment purchase is in progress.

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The plant and pump station’s Wangtang 60% of the whole works have been completeted, 12 km civil works, Wastewater 110.19 plant pipe-network has been lain,2km plant pipe-network equipment Nearing 7 Treatment Plant million Final completion is in progress. Pump station construction on Qianshan purchase and completion and Pipeline Yuan road and the equipment installation has been completed. installation are Works Phase-II nearing completion Breakwater terrance of Feidong County works has been Hefei Chaohu completed, 80% the of Breakwater terrance of Feixi Lake Bank 70.78 County works have been completed, 70% the of Ecological Testing of the Nearing Testing of the pilot 8 million Breakwater terrance of Baohe County works has been Environment pilot section. completion section. Yuan completed.Test section has been finished and river-side Comprehensive landscape works have been completed . Control Works

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3. Environmental Management Measures

3.1 Purpose of Environmental Management

Environmental management measures are applied to all sub-projects in order to prevent severe environmental pollution as a direct result of construction and operation, to minimize the negative impact of the Project on the environment during the implementation and eventually achieve the overall project objective of improving the urban environment of Hefei City.

3.2 Environmental Management Measures

For the particulars of the environment management measures taken by different sub-projects, see Tables 3-1—3-4:

Hefei Municipal Research Institute of Environmental Protection 9 Hefei Urban Environment Improvement Project under ADB Loan External Environment Monitoring Report

Table 3-1 Environment Management Measures for Urban Sewage Pipeline System Improvement Works

Project Impacting Environment Improvement Measures and Management Arrangement Period Factors Impact

Construction Slurrywater from the pipeline works and slurry from the drilling waste water and works must be treated in a sand filter before being discharged; Water sewage created by special septic tank for sewage is in place on site; temporary site workers water tank is established. Dusty roads shall be sprayed with water.Vehicles used for transporting excavated earth should be sufficiently covered to prevent the escape of dust and the transport route should be properly selected. Speed of transport vehicles is limited. Traffic should be properly controlled and efforts should be made to minimize thedeposition of soil build up on the roads. During Construction and excavation and drilling works, the operating face should be transport dust sprayed with water to keep a certain humidity, loose, dry and solid surface soil at the work site should be frequently watered to Gas prevent excess dust. During backfilling works, the dry surface soil should be properly sprayed with water to avoid airborne dust. Upon completion of the pipeline works, it is necessary to restore the road and ecological condition of the site to its original Construction condition. Exhaust pollution of automobiles Exhaust systems of construction machinery should be properly and construction maintained. machinery Construction machinery should be well serviced and properly Noise from the operated so that the working noise of machinery is minimized; construction the construction is scheduled and day work should be arranged. Noise machinery and No construction is allowed between 22:00~6:00. If necessary, set transport vehicles up a temporary sound-proof fence. Traffic routes should be selected to avoid residential areas. The transport of spoils is strictly subject to the stipulations of the Administrative Measures of Hefei City for Building Waste Solid Construction implemented as from September 1, 2004; the construction waste waste spoils and waste may be classified as useful or non-useful. The useful part will be recovered, while the non-useful part will be shipped to Hefei Landfill Yard for treatment. Solid Sludge is shipped to Hefei Sludge Disposal Center for Operation Pipeline clearance waste centralized treatment.

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Table 3-2 Environment Management Measures for Comprehensive Renovation Project of Qingxi Road Landfill

Project Impacting Environment Improvement Measures and Management Arrangement Period Factors Impact 1 effluent settling chamber is set up within the work site, for Construction recycling the washing water; 1 simple septic tank is established wastewater and Water for treatment of sewage water to be discharged into the nearby sewage created by municipal sewage pipeline before being delivered to Wangtang site workers Sewage Treatment Plant for centralized treatment. The pavement should be compacted with a roller. It is necessary Road dust and to minimize the falling of soil from the earthwork vehicles. The odor from gas Gas pavement should be properly watered. Before the landfill gas recovery gabion exhaust system is completed, the air duct of the gas recovery well construction gabion should be sealed to control the escape of odor. Construction machinery should be well serviced and rationally Noise from the operated so that the working noise of machinery is minimized; construction the construction is scheduled and day work should be arranged. Noise machinery and No construction is allowed between 22:00~6:00. If necessary, set Construction transport vehicles up a temporary sound-proof fence. Minimise the use of horns by site vehicles. Landfill waste Solid from the gas For construction at the waste treatment yard, the excavated waste recovery gabion landfill waste can be locally buried. works Any destroyed should be restored as soon as possible. Construction should be avoided in the rainy season. Plantation Land for should be undertaken shortly after the landfill work is Ecology construction and completed; during storms, the damaged working face and loose soil erosion soil layer should be covered with nets and straw mats, etc to prevent excessive soil erosion. Retaining devices should be provided for the slope of the road subgrade. Improve the leachate anti-seepage system and collection system to effectively prevent waste leachate from entering the Nanfei Water Leachate River. The collected leachate will be delivered to Wangtang Sewage Treatment Plant for centralized treatment before being discharged as standard. Set up the landfill gas recovery gabion and collection pipeline. A Operation negative air pressure exhausting system is adopted to collect landfill gas. The discharge duct port is installed with an Gas Landfill gas automatic igniting device. The landfill gas will be combusted. The centralized emission ducts should be arranged with a sanitary protection distance of 300m. Noise of The inlet and outlet ducts of axial-flow ventilators at the exhaust Noise ventilators station will be installed with KY Series silencers.

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Table 3-3 Environment Management Measures for Comprehensive Control Project of Sili River, Banqiao River, Ershibu River and Chaohu Lake (Hefei Section)

Project Impacting Environment Improvement Measures and Management Arrangement Period Factors Impact

Worksite wastewater and The work site shall be closed; temporary septic tank is sewage created by installed; temporary water tank is established Water site workers. Leaching water from sediment The treatment solution of dredged sediment is adopted dumping yard Dusty roads should be sprayed with water. Vehicles used for transporting excavated earth should be sufficiently covered to prevent the escape of dust and the transport route should be Construction and properly selected. Speed of transport vehicles is limited. transport dust Construction materials should be covered or sprayed with water. Gas The period of on site storage of materials should be kept to a minimum. Construction Exhaust pollution of automobiles Exhaust systems of all construction machinery shall be properly and construction maintained. machinery Noise from the Construction machinery should be well serviced and rationally construction operated so that the working noise of machinery is minimized. If Noise machinery and necessary, set up a temporary sound-proof fence. Traffic routes transport vehicles should be selected so as to avoid residential areas.

The excavated earthworks may be used for consolidation of the Large quantity of dyke and road construction. Sludge should be dumped at the Solid spoil in the initial sediment dumping yard, without being disposed. Construction waste period of waste should be classified as useful or non-useful. The useful construction part will be recovered, while the non-useful part will be shipped to Hefei Landfill Yard for treatment. Upon completion of the works, level and cover the land and Land Borrowing area restore the vegetation. For disturbed surfaces, adopt engineering measures such as building drains, retaining walls and levelling.Other works and Soil erosion measures such as planting grass and trees to control the soil Ecology erosion should be adopted. Operation Ecology of river Minimize hard slope protection and maximize the ecological course slope protection Formulate the detailed immigrant settlement program according Environmental to the national regulations and with reference to the policy of Society impact due to ADB. Any land temporarily occupied should be restored and acquired land returned to the land users as soon as possible

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Table 3-4 Environment Management Measures for Shiwuli River Phase I, Wangtang Wastewater Treatment Plant Phase II and Auxiliary Pipeline Works

Project Impacting Environment Improvement Measures and Management Arrangement Period Factors Impact

Construction washing water 1 effluent settling chamber is set up within the work site, for Water and livelihood recycling the washing water; 1 simple septic tank is established sewage The work site shall be closed; the dusty roads shall be sprayed with water; covering measures or closure should be used for Construction and transport and the transport route should be properly selected and transport dust the speed of transport vehicles is limited; construction materials are covered or sprayed with water; time is minimized for storing Gas the construction materials at site Exhaust pollution of automobiles Exhaust systems of all construction machinery should be and construction properly maintained. Construction machinery Construction machinery should be well serviced and rationally Noise from the operated so that the working noise of machinery is minimized; construction the construction is rationally scheduled and day work should be Noise machinery and arranged. No construction is allowed between 22:00~6:00. If transport vehicles necessary, set up a temporary sound-proof fence. Traffic routes should be rationally selected to avoid any residential areas. Solid The transport of spoils is strictly subject to the stipulations of the waste Administrative Measures of Hefei City for Building Waste Construction implemented as from September 1, 2004; construction waste spoils and waste should be classified useful or non-useful. The useful part will be recovered, while the non-useful part will be shipped to Hefei Landfill Yard for treatment. Set up a green belt in and around the treatment plant area. The Waste gas for coverable waste gas source should be covered and the biological Gas sewage treatment deodorizing device should be used for absorption treatment. Strengthen the sludge management. Operation Noise from Highly noisy equipment should be positioned underground or Noise equipment underwater. Soundproofing and acoustic materials should be used operation for highly noisy equipment rooms. Solid Shipped to Hefei Sludge Disposal Center for centralized Sludge cakes waste treatment

4. Environment Protection Targets

In line with the environmental management plan and relevant requirements specified in the Final Report for Hefei Urban Environment Improvement Project under ADB PPTA project, the external environmental monitoring should be conducted for dust, odor, noise, sewage and solid water discharged from the workshop and work site, underground water pollution, soil corrosion, land impact, infectious diseases and occupational health during the construction and for overflow of the sewage treatment plant, underground water

Hefei Municipal Research Institute of Environmental Protection 13 Hefei Urban Environment Improvement Project under ADB Loan External Environment Monitoring Report pollution, drain, odor, noise, sludge treatment, sediment in the pipeline and safety, during operation upon the completion of the construction. The Project’s environmental protection targets for different works are shown below: Table 4-1 List of Environment Protection Targets Environmental Environmental Sr. No. Environment Protection Targets Factors Functions Nanfei River Category-V Banqiao River Category-V 1 Water environment Sili River Category-V Ershibu River Category-V Chaohu Lake (Hefei Section) Category-III Siquan Garden Subdistrict Category-II CACTVC Category-II Erfangying Category-II Dongfeng Primary School Category-II Fangdaying Village Category-II Wangtang Village Category-II Atmospheric 2 Longshan Villa Settlement Buildings Category-II environment Scattered Households Category-II Xiafan Village Category-II Hefei Police Officer College Category-II Tangxi Village Category-II The new city of Jinan,longgang Category-II committee Daxingji Village Category-II 3 Acoustic environment CACTVC Category-I Fangdaying Village Category-I Wangtang Village Category-I Longshan Villa Settlement Buildings Category-I Siquan Garden Subdistrict Category-II Yanhe Village Category-II Provincial School of Industry & Category-II Commerce Aviation Residence Category-II Wanshen Science and Technology Category-II School Township Enterprise School Category-II Part of Shicheng Village north of Category-II Railway Bridge Zhantang Village Category-II Yiwu Small Commodity Market Category-II Part of Zhongyoufang Village Category-II Zhaoshuwang Village Category-II Zhongyoufang Village Villager Category-II Committee Dongfeng Primary School Category-I Dongbianying Category-I Houwan Village Category-I Lixin Category-I Shenwan Category-I Wufangying Category-I Erfangying Category-I

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Tangxi Village Category-II The new city of Jinan,longgang Category-II committee Daxingji Village Category-II

5. Particulars of the Environment Monitoring

As previously stated, site investigations and monitoring works were undertaken in order to prepare this 3rd External Environment Monitoring Report. The particular activities undertaken are detailed below. Note: 1. The particular location and time for monitoring were defined according to the Project’s actual work progress, site construction items and routes. 2. The monitoring locations were focused on areas considered to be sensitive to pollution, such as residential areas, schools, etc. While covering the protection targets specified in the environment impact report, reference is made to the population density, construction items, site, and progress of the project. The monitoring points are selected at the representative factories and sites. 3. During monitoring, brief records were taken of the major contractors, major works, timetable of works, and major construction equipment on site.

5.1 Surface Water Environment Monitoring

1. Construction of Wastewater Treatment Plant Monitoring Parameters: pH, SS, COD, petroleum. Monitoring location: Shiwuli River Sewage Treatment Plant Phase I, Wangtang Wastewater Treatment Plant Phase II, Hefei Chaohu Lake Bank Ecological Environment Comprehensive Control Works’ wastewater of utility area during construction period. Monitoring time: sampling respectively at 10: 00, 15: 00 and 18: 00,June 8, 2009. 2. Water Quality of Nanfei River

Monitoring Parameters: pH, TP, COD, BOD5, NH3-N. Monitoring location: 1 sampling 100m upstream of the Nanfei River landfill sewage outletsection set up respectively at 100m upstream and at 500m and 1000m downstream of outlet. Monitoring time: once a day for three days from June 9 to 11, 2009.

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3. Surface Water Quality of Sili River , Banqiao River and Ershibu River

Monitoring Parameters: pH, TP, COD, BOD5, NH3-N. Monitoring location: Bridge of Linquan Road downstream,Sili River and Railway Bridge overflow dam downstream, Banqiao River. Rrshibu River Daxingji downstream. Monitoring time: once every day continually for three days from June 15 to 17, 2009. 5.2 Underground Water Environment Monitoring Parameters: pH, fluoride, total hardness, cyanide, Hg, Cu, As, total coliform group and bacterial count. Monitoring Location: 1 background well, 50m upstream of Nanfei River; 1 diffusion well respectively at 30 m downstream of Nanfei River and 30m south of Qingxi Road; 1 monitoring well for the underground water well within the site; Monitoring time: sampling once at each monitoring point on June 8, 2009.

5.3 Leachate environment

Monitoring Parameters: COD, BOD5, NH3-N, TP, SS, Hg, Pb, As, Cd. Monitoring Location: leachate regulating tank. Monitoring time: sampling once on June 9, 2009.

5.4 Atmospheric Environment

1 Construction Dust Monitoring Parameters: TSP. Monitoring Location: atmosphere environment sensitive point near Wangtang Sewage Treatment Plant Phase II, work site camp of Chaohu Lake Bank Comprehensive Control Project. Monitoring time: TSP sampling for at least 45 minutes per hour, at least 12h per day continually for three days from June 8 to 10, 2009. 2. Air Odor at the Sediment Dumping Yard

Monitoring Parameters: TSP, SO2, H2S, NH3. Monitoring Location: 1 monitoring point at 50m downwind of each sediment dumping yard. Monitoring time: sampling for monitoring continually for 5 days from June 15 to 19, 2009, subject to the duration specified in Environmental Air Quality Standards; sampling six times per day for average concentration per hour and once for odor factor.

5.5 Noise Pollution

Monitoring Parameters: Equivalent Sound Level A (Leq). Monitoring Location: sensitive points within 150m of the work site boundary and the management area office of the Comprehensive Renovation Project of Qingxi Road

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Landfill. Monitoring time: twice a day for one day on June 18, 2009. 5.6 Soil Environment Monitoring Parameters: pH, Cu, As, Zn, Cd, Pb and Hg. Monitoring Location: 3 points for covering layer after the closure of the site; Monitoring time: sampling once on June 19, 2009.

6 Monitoring Methods and Evaluation Standards According to the relevant national regulations, the environmental functions division of Hefei and relevant sections of the Environment Impact Assessment Report for Hefei Urban Environment Improvement Project Environment, the analytical method and evaluation standards of the environment monitoring are defined in Table 6-1. Table 6-1 List of Monitoring Analytical Methods and Evaluation Standards

Environmental Sampling and Analyzing Method Evaluation Standards Elements

Technical Codes for Surface Water and Sewage Monitoring (HT/T91-2002), Design Surface Water Environment Quality Specifications for Water Quality Sampling Standards (GB3838-2002): Method (GB12997-91), Technical Guidance Surface water Category-V Standards; Sewage for Water Quality Sampling (GB12998-91), Comprehensive Discharge Standards Technical Specifications for Water Quality (GB8978-1996): Class-I Standards Sampling, Sample Storage and Management (GB12999-91).

Underground Water Quality Underground Technical Codes for Underground Water Standards (GB/T14848-93): water Environment Monitoring (HJ/T164—2004) Category-III Standards

Municipal Solid Waste Landfill Pollution Control Standards Municipal Solid Waste Landfill Pollution Leachate (GB16889-2008): Table 2 Water Control Standards (GB16889-2008) Pollutant Discharge Concentration Limit

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Environmental Air Quality Standards (GB3095—1996) Class-II, Odorous Pollutant Discharge Standards Environmental Air Quality Standards (GB14554-93): Class-II Standards, Atmosphere (GB3095—1996) Design Sanitary Standard for Industrial Enterprises (TJ36—79): Maximum Concentration for Residential Areas

Environmental quality standard for noise (GB3096—2008): “Category I and II Area” Standard, Noise Limit Environmental quality standard for noise Noise for Construction Site Boundary (GB3096-2008) (GB12523—90), Emission standard for industrial enterprises noise at boundary (GB12348-2008): Category-II Standard

Soil Environment Quality Standard Technical Codes for Soil Environment Soil (GB15618-1995): Category-II Monitoring (HJ/T166—2004) Standard

7 Evaluation of Monitoring Data

7.1 Findings of Surface Water Environment

1 Findings from Construction Waste Monitoring For the monitoring findings of construction wastewater, see Table 7-1: Table 7-1 List of Findings from Construction Waste Water Monitoring Unit: mg/l (except for pH)

Monitoring Location Monitoring Time pH SS COD Petroleum

10: 00 7.41 60 75 2.7 Wastewater outlet of sewage pipeline work 15: 00 7.65 66 71 2.8 site 18: 00 7.57 64 78 3.1 Wastewater outlet of Shiwuli River Phase I 10: 00 7.14 68 82 2.4 work site 15: 00 6.97 67 81 2.2

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18: 00 7.10 64 82 2.7

10: 00 Waste water outlet of 7.17 58 85 3.6 Wangtang Sewage 15: 00 Treatment Plant Phase 7.28 55 81 3.1 II work site 18: 00 7.22 57 88 3.4 GB8978-1996: / 6~9 70 100 5 Category-I Standard From the findings in Table 7-1, it is clear that with the environmental management measures implemented to control the impact of waste water generatated during construction are allowing the waste water to successfully meet the Sewage Comprehensive Discharge Standards (GB8978-1996): Category-I Standard. 2. Findings from Nanfei River water quality monitoring For the findings from Nanfei River water quality monitoring, see Table 7-2: Table 7-2 List of Nanfei River Water Quality Monitoring Unit: mg/l (except for pH) Monitoring Monitoring pH TP COD BOD NH -N location Date 5 3

June 9 7.20 0.02 52.7 7.9 3.44 100m upstream of June 10 Nanfei River 7.22 0.02 54.2 8.2 3.23

June 11 7.19 0.02 56.1 8.1 3.74

June 9 Sewage outlet of 7.33 0.04 59.4 9.1 4.64 the landfill and June 10 500m 7.32 0.04 58.9 9.1 4.56 downstream June 11 7.37 0.03 57.8 9.3 4.42

June 9 Sewage outlet of 7.10 0.04 55.5 8.5 4.47 the landfill and June 10 1000m 7.02 0.04 56.9 8.9 4.53 downstream June 11 6.98 0.03 57.7 8.5 4.71 GB3838-2002: Category-V / 6~9 0.4 40 10 2.0 Standard Maximum overproof / / / 0.485 / 1.355 multiple From the findings shown in Table 7-2, it is observed that the water quality of Nanfei River upon monitoring does not reach the Surface Water Environment Quality Standards (GB3838-2002): Category-V Standard for COD and NH3-N. However, the other monitoring parameterss do in fact reach the Category-V Standard. Comparatively, before the implementation of Qingxi Road Landfill Comprehensive Renovation Project, the

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COD, NH3-N and TP concentrations in the water of Nanfei River exceeded the standard to a far greater extent. In this respect, the water quality of Nanfei Rive does appear to be improved. In comparison with the first and second environmental monitoring reports, the water quality of Nanfei River is considered to be remaining at a stable level. 3. Findings from Sili River, Banqiao River and Ershibu River water quality monitoring For findings from the water quality monitoring in Sili, Banqiao and Ershibu River, see Table 7-3: Table 7-3 List of Sili River, Banqiao and Ershibu River Water Quality Monitoring Unit: mg/l (except for pH) Monitoring Monitoring pH TP COD BOD NH -N location Date 5 3 June 15 Bridge of 7.47 0.02 51.2 17.2 18.5 Linquan Road June 16 downstream,Sili 7.14 0.01 54.6 22.1 17.2 River June 17 7.26 0.02 52.3 19.2 17.4

June 15 Railway Bridge 7.28 0.03 59.8 13.5 17.9 overflow dam June 16 downstream, 7.56 0.03 60.4 16.9 18.0 Banqiao River June 17 7.59 0.03 61.6 15.6 18.2

June 15 7.69 0.88 65.2 25.6 4.94 Ershibu River Daxingji June 16 7.84 0.74 67.5 24.8 4.86 downsream June 17 7.76 0.91 66.4 26.1 4.52 GB3838-2002: Category-V / 6~9 0.4 40 10 2.0 Standard Maximal overproof / / 1.275 0.688 1.61 8.25 multiple

From the findings in Table 7-3, it is observed that Sili and Banqiao River’s COD、 BOD5 and NH3-N concentrations exceed the Surface Water Environment Quality Standards (GB3838-2002): Category-V Standard, and Ershibu River’s COD、BOD5、 NH3-N and TP concentrations all exceed Category-V Standard.

7.2 Findings from Underground Water Environment Monitoring

For the findings from the underground water environment monitoring, see Table 7-4:

Hefei Municipal Research Institute of Environmental Protection 20 Hefei Urban Environment Improvement Project under ADB Loan External Environment Monitoring Report

Table 7-4 List of findings from underground water environment monitoring Unit: mg/l (except for pH) Total Total Monitoring Monitoring hardness coliform bacteria pH Fuoride Cyanide Hg Cu As location time (as group l count CaCO3) (cfu/l) (cfu/l) Background June 8 well 7.81 0.58 144 0.001 0.00014 0.10 0.009 14 220 Diffusion Well June 8 1 7.80 0.53 137 0.001 0.00012 0.10 0.010 28 146 Diffusion Well June 8 2 7.85 0.47 114 0.001 0.00011 0.10 0.009 40 348 Monitoring June 8 Well 7.77 0.49 138 0.001 0.00010 0.10 0.010 35 240 GB/T14848-93: 6.5- Category-III / ≤1.0 ≤450 ≤0.05 ≤0.001 ≤1.0 ≤0.05 ≤3.0 ≤100 8.5 Standard Maximal overproof / / / / / / / / 12.33 2.48 multiple From the findings in Table 7-4, it is observed that the water quality meets the Underground Water Quality Standad (GB/T14847-93): Category-III on all indicators except bacterial count and total coliform count. This exceedence indicates the presence of artificial regional shallow underground water pollution.

7.3 Findings from Leachate Environment Monitoring

For the findings from the leachate environment monitoring, see Table 7-5: Table 7-5 List of finding from the leachate environment monitoring Unit: mg/l

Items COD BOD5 NH3-N TP SS Hg Pb As Cd

Leachate regulating -4 tank 7740 2370 543 3.7 117 1.26×10 0.05 0.03 0.002

Reference with 100 30 25 3 30 0.001 0.1 0.1 0.01 GB16889-2008Table 2

Maximal overproof multiple 78.4 78 20.72 0.23 2.9 / / / /

The leachate collection system of Qingxi Road Municipal Solid Waste Landfill consists of a leachate collection well, a leachate collection pipeline and a leachate regulating tank. In low-lying areas of the Landfill, the leachate collection wells are set up every 1000m and are connected by HDPE pipes to the leachate regulating tank for discharging into the Wangtang Wastewater Treatment Plant. According to the relevant stipulations of the Municipal Solid Waste Landfill Pollution Control Standard (GB16889-2008), where the existing the municipal waste landfill cannot meet the water pollutant concentration limit requirement specified in Table 2 but can satisfy the

Hefei Municipal Research Institute of Environmental Protection 21 Hefei Urban Environment Improvement Project under ADB Loan External Environment Monitoring Report following conditions, the leachate can be shipped to the municipal secondary wastewater treatment plant for treatment: (1) With the leachate treated at the landfill, the concentration of such pollutants as Total Hg, Total Cd, Total Cr, Cr (VI), Total As and Total Pb reaches the concentration limit specified in Table 2; (2) The leachate total treated daily by the city secondary wastewater treatment plant does not exceed the wastewater treatment volume by 0.5% and the rated wastewater treatment capacity of the city secondary wastewater treatment plant; (3) The leachate of municipal waste should be all discharged to the city secondary wastewater treatment plant; (4) Without affecting the wastewater treatment ability of the city secondary sewage treatment plant. From the findings in Table 7-5, it is clear that the leachate quality after pretreatment in the leachate regulating tank at the landfill site is sufficiently comply with Table 2 of the Municipal Solid Waste Landfill Pollution Control Standards (GB16889-2008) and thus the leachate can be be discharged to the Wangtang Wastewater Treatment Plant for treatment.

7.4 Findings from Atmosphere Environment Monitoring

1. Findings from the construction dust monitoring For the findings from the construction dust monitoring, see Table 7-6: Table 7-6 List of Findings from Construction Dust Monitoring Unit: mg/m3 Monitoring location Monitoring Date TSP

June 8 0.233 Longju Villa, Wangtang June 9 Phase II 0.234

June 10 0.233

June 8 0.221 Tangxi Village, Chaohu Lake Bnak Ecological Renovation June 9 0.220 Project June 10 0.227 GB3095—1996 Class-II / 0.30 From the findings in Table 7-6, it is observed that with the relevant environment management measures taken at the work site of the Project have allowed the daily avergage concentrations of TSP to meet Environment Air Quality Standard (GB3095—1996) Class-II Standard. 2. Findings from the sediment dumping yard air odor monitoring For the findings from the sediment dumping yard air odor monitoring, see Table 7-7: Table 7-7 List of findings from the sediment dumping yard air odor monitoring

Hefei Municipal Research Institute of Environmental Protection 22 Hefei Urban Environment Improvement Project under ADB Loan External Environment Monitoring Report

Unit: mg/m3

Monitoring Monitoring date TSP SO HS NH location 2 2 3

June 15 0.100 0.020 0.01 50m downwind of the dump June 16 yard for the 0.104 0.022 0.01 section of Sili June 17 River from 0.107 0.024 0.01 Dangshan Road to Railway June 18 0.110 0.023 0.01 Bridge June 19 0.116 0.027 Under the 0.01

June 15 0.088 0.030 Detection Limit 0.01

June 16 50m downwind 0.084 0.022 0.01 of No. 1 Dump June 17 Yard of 0.080 0.019 0.01 Banqiao River June 18 0.079 0.029 0.01

June 19 0.079 0.028 0.01 Evaluation / 0.30 0.15 0.1 2 Standard 3 Note: The detection limit for H2S is 0.001mg/m From the findings in Table 7-7, it is observed that the daily concentration of TSP, SO2 50m downwind of the sediment dump yard meets the Environment Air Quality Standard (GB3095—1996) Class-II Standard and H2S and NH3 meets the Odor Pollutant Discharge Standards (GB14554—93): Class-II Standard.

7.5 Findings from noise environment monitoring

The daytime noise monitoring (no work is conducted between 22.00 and 06.00) has been conducted at noise environment sensitive points of the Project. The findings are displayed in Table 7-8:

Table 7-8 List of Findings from Noise Environment Monitoring

Noise Monitoring Value (Daytime) Number of Names Testing Points 1st 2nd

Hefei Municipal Research Institute of Environmental Protection 23 Hefei Urban Environment Improvement Project under ADB Loan External Environment Monitoring Report

1＃ Qingxi Road Landfill Office 53.7 53.4

2＃ Police Officer College 52.4 52.7

3＃ Siquan Garden Subdistrict 56.5 56.2

4＃ CACTVC 59.4 59.1

5＃ Xiafan Village 52.7 52.9

6＃ Fangdaying Village 55.5 54.2

7＃ Wangtang Village 54.8 54.3

8＃ Longju Villa 53.4 53.7

9＃ Xitang Village 51.7 52.0

＃ The new city of Jinan,longgang 10 52.4 53.0 committee 11＃ Daxingji Village 53.1 52.9

According to the findings from the environmental; noise monitoring in Table 7-8, it is observed that the major sensitive points involved in the Project all meet the Environmental quality standard for noise (GB3096-2008): Class 1 and 2 Standards. This indicates that during the construction, the Project has undertaken successful environment management measures to ensure the noise at the work site boundary is lower than the specified limit, with no major impact on surrounding noise sensitive locations.

7.6 Findings of Soil Environment Monitoring

For the findings of soil environment monitoring, see Table 7-9: Table 7-9 List of Findings from Soil Environment Monitoring Unit: mg/kg

Monitoring pH Cu As Zn Cd Pb Hg Location

Point 1＃ of Soil Layer after Closure 6.79 35 22 147 0.24 194 0.32

Point 2＃ of Soil Layer after Closure 6.75 33 24 136 0.26 192 0.24

Point 3＃ of Soil Layer after Closure 6.84 38 21 129 0.25 197 0.38

GB15618-1995 6.5≤pH≤7.5 100 25 250 0.30 300 0.5 II Standard

From the findings in the above table, it is observed that the soil quality is

Hefei Municipal Research Institute of Environmental Protection 24 Hefei Urban Environment Improvement Project under ADB Loan External Environment Monitoring Report comparatively good at the 3 existing monitoring points. The soil environment quality at all the points meets the requirements of the Soil Environment Quality Standard (GB15618-1995): Class-II Standard.

7.7 Monitoring Summery

According to the field survey and environmental monitoring undertaken, the Hefei Urban Environment Improvement Project has successfully followed the relevant requirements specified in the Environment Impact Report of the Project and has undertaken relevant environment management measures. For the actual effects, see Table 7-10: Table 7-10 List of Implementation and Effects of Project Environment Management Finding Sr. Environment Management Pollution Source upon Effect No. Measures taken monitoring The work site is closed; 1 waste water Without any Construction sediment pool set within work site, for Up to discharge 1 waste water recycling the washing water; 1 simple standard exceeding the septic tank is established. standard Improve the leachate anti-seepage system The leachate is and collection system; the collected Heavy-metal effectively leachate is delivered to Wangtang 2 Leachate ion up to prevented from Sewage Treatment Plant for centralized standard entering Nanfei treatment before being discharged up to River standard The work site is closed; dusty roads are Without causing sprayed with water; covering measures or any large-area closure are used for transport and the dust impact and transport route is properly selected and Up to without falling air 3 Construction dust speed of transport vehicles is limited; the standard quality of the construction materials should be covered nearby or sprayed with water; time is minimized environment for storing the construction materials at observed site. Livelihood stove No soot emission Smoking fuels are prohibited and Up to 4 discharge of observed from the liquefied fuel is used standard contractors boilers Limited impact the landfill gas exhaust system has been on the Discharge odor Up to 5 completed for operation,and the surrounding pollutants standard combustion system is also in service environment air quality The construction machineries should be Boundary noise is Noise at the work 6 well serviced and rationally operated so lower than the site boundary that the working noise of machinery is specified limit minimized; the construction is rationally Up to Without affecting Noise at the noise scheduled and day work should be standard the normal life of environment arranged. No construction is allowed for Up to residents and 7 sensitive points 22:00~6:00. If necessary, set up the standard without any involved at work temporary sound-proof fence. Traffic complaint from site route should be rationally selected to the public avoid any residential area. Soil of the Landscaping should be undertaken Up to The soil 8 covering layer shortly after the landfill is completed; standard environment

Hefei Municipal Research Institute of Environmental Protection 25 Hefei Urban Environment Improvement Project under ADB Loan External Environment Monitoring Report

after closure of during storms, the damaged working quality is not the landfill face and loose soil layer should be worsening before covered with covering net, straw mats, and after the etc to prevent soil erosion. closure of the landfill, without any heavy-metal exceeding the standard The transport of spoils is strictly subject to the stipulations of the Administrative Measures of Hefei City for Building Without Construction Waste implemented as from September 1, impacting the 9 spoils and 2004; the construction waste may be / external building waste classified into the useful and non-useful. environment The useful part will be recovered, while the non-useful part will be shipped to Hefei Landfill Yard for treatment.

8. Conclusions and Recommendation

Conclusions： As shown in the above report, the Project has implemented the relevant environment management measures proposed in the environment impact report of the Project and given appropriate consideration to the possible unfavorable impacts on the environment that may occur during construction. According to the findings of the external environment monitoring undertaken to inform this report, the Project has undertaken relevant measures to minimize the risk of any potentially unfavorable impacts on the environment. The external environment monitoring report concludes the following: 1. Relevant environmental measures have been undertaken for the waste water produced as a direct result of construction. The construction at Sili River and Banqiao River has been basically completed. After taking relevant environmental management measures, the water quality of Sili River and Banqiao River has been improved downstream of the construction site. However the two rivers are still exceeding the standards on a number of parameters. Parameters on which the water quality is failing are COD, BOD5 and NH3-N respectively. 2. At Qingxi Road Landfill, the leachate of municipal solid waste is treated in the leachate regulating pool. With the concentration of pollutants such as heavy metal complying with the standard, the leachate is shipped in a closed container to Wangtang Wastewater Treatment Plant for treatment, thus effectively preventing leachate from solid waste from entering Nanfei River and causing pollution of Nanfei River. The water quality of Nanfei River has subsequently improved. 3. The landfill gas pipeline and combustion system has been completed, with the relevant environment management measures undertaken at the Project’s work sites. The Comprehensive Renovation Project of Qingxi Road Landfill has passed the relevant acceptance checks. 4. During construction, the Project has carried out relevant environmental management measures and ensured that the noise of the work site is lower than the maximum acceptable amount.

Hefei Municipal Research Institute of Environmental Protection 26 Hefei Urban Environment Improvement Project under ADB Loan External Environment Monitoring Report

5．The works have been basically completed according to the project scheduling. However, the Ershibu River Comprehensive Control Work is progressing more slowly than expected. Recommendations: 1. The contractors should continue to carry out EHS mangement to help reduce the impact of the Project on the surrounding environment. 2. The contractors should continue to strictly adhere to the Project’s environment management plan and measures to reduce the adverse environmental impact of wastewater, dust and mechanical noise during construction; 3. Strengthen the training for the contractors’ personnel for environmental impact management in order to enhance their awareness of the need for environmental impact management. This will help ensure the safe and orderly completion of the Project.

Appendix 1: Monitoring Evaluation Standards and limit value

Hefei Municipal Research Institute of Environmental Protection 27 Hefei Urban Environment Improvement Project under ADB Loan External Environment Monitoring Report

Environmental Monitoring Evaluation Standards Standard Unit Elements Parameters

pH 6-9 /

TP 0.4 Surface Water Environment Quality Standards (GB3838-2002): COD 40 Category-V Standards;

BOD5 10

Surface water NH3-N 2.0 mg/l 6-9 pH

Sewage Comprehensive Discharge SS 70 Standards (GB8978-1996): Class-I Standards COD 100

Petroleum 5

pH 6.5-8.5 /

Fuoride ≤1.0

Total hardness ≤450

Cyanide ≤0.05 mg/l Underground Underground Water Quality Standards Hg ≤0.001 water (GB/T14848-93): Category-III Standards

Cu ≤1.0

As ≤0.05

Total coliform ≤3.0 group cfu/l

Bacterial count ≤100

Municipal Solid Waste Landfill Pollution Leachate Control Standards (GB16889-2008): COD 100 mg/l Table 2 Water Pollutant Discharge Concentration Limit BOD5 30

Hefei Municipal Research Institute of Environmental Protection 28 Hefei Urban Environment Improvement Project under ADB Loan External Environment Monitoring Report

NH3-N 25

TP 3

SS 30

Hg 0.001

Pb 0.1

As 0.1

Cd 0.01

Environmental Air Quality Standards TSP 0.30 (GB3095—1996) Class-II

TSP 0.30

Atmosphere Odorous Pollutant Discharge Standards mg/m3 (GB14554-93): Class-II Standards, SO2 0.15 Design Sanitary Standard for Industrial Enterprises (TJ36—79): Maximum H2S 0.1 Concentration for Residential Areas

NH3 2

Environmental quality standard for Category 1(day) 55 noise (GB3096—2008): “Category 1 and 2Area” Standard Category 2(day) 60 Noise dB(A) Emission standard for industrial enterprises noise at boundary Category-2(day) 60 (GB12348-2008): Category-2 Standard

pH 6.5-7.5 /

Cu 100

As 25

Soil Environment Quality Standard Zn 250 Soil (GB15618-1995): Category-II Standard mg/kg Cd 0.30

Pb 300

Hg 0.5

Hefei Municipal Research Institute of Environmental Protection 29 Hefei Urban Environment Improvement Project under ADB Loan External Environment Monitoring Report

Main works of Wangtang Sewage Treatment Plant and Pipeline Works Phase-II(oxidation ditch & sedimentation basin)

Sili River Comprehensive Control Works(river-side landscape)

Pipe-network for Ershibu River Comprehensive Control Works Banqiao River-side landscape

Photos of Hefei Urban Environment Improvement Project under ADB Loan (1)

Hefei Municipal Research Institute of Environmental Protection 30 Hefei Urban Environment Improvement Project under ADB Loan External Environment Monitoring Report

Overflow weir downstream of Banqiao River Dump Yard landscape of Banqiao River

Main works of Shiwuli River Sewage Treatment Plant Breakwater terrace of Chaohu Lake bank

Ecological works of Chaohu Lake bank

Photos of Hefei Urban Environment Improvement Project under ADB Loan (2)

Hefei Municipal Research Institute of Environmental Protection 31