E1714
v.4
Environmental Management Plans for Reconstruction and Expansion Project for Gas Facilities of Yingkou City Loaded from World Bank
Design Unit: Yingkou Coal Gas Company
Liaoning Academy of Environmental Sciences
January 2007
1
Contents
1 Project Description 2
1.1Background of the Project 2
1.2Name, Location, Nature, and project plan 2
1.3Construction Contents of Project 2
2 Design basis of EMP 1
2.1 Performance criteria 1
2.2Design Basis 3
3 Pollutant Discharge 4
3.1 Waste Gas Emission of the Project 4
3.2 Waste water 4
3.3 Noise source 4
3.4 Solid waste 4
3.5Pullutant reduction by the newer for the replacement of the old one 4
4 Analysis of the Environmental Impact 6
4.1 Status Quo of Environment Quality 6
4.2 Environmental Impact Analysis in Construction Period 7
4.3 Analysis of the Environmental Impact in Operation 11
5 Environmental Risk Assessment 14
5.1 Environmental protection target 14
5.2 Environmental Risk Types 14
5.3 Risk probability and the confirmation of the sources 15
5.4 Consequence Calculation 16
5.5 Risk Calculation and Assessment 18
5.6 Risk Control Measure and Emergency Response Plan 19
5.7 Conclusion 25
6 The environmental affection reduction methods 26
7 Monitoring Plan and Organization Arrangement 30
7.1Monitoring Plan 30
7.2Environmental Supervision during the construction 30
7.3Monitoring Organization Arrangement 30
7.4 Category and Content of Monitoring Report 36
8.1.1Category and Content of Monitoring Report 36
7.5 Submitting Time and Monitoring Report Accepter 36
7.6 Feedback Requirement of Monitoring Report 36
8．Reinforcement Plan of Environment Managing Organization 37
9 Public Participation Plan 37
9.1 Continuous Public Participation Plan 37
9.2 Channels for complains of dissension 38
10 EMP Executive Fees 40
1 Project Description
1.1Background of the Project
Yingkou City Gas Company was founded in1986, which is the only pipe-gas public utility enterprise in Yingkou. The resource of the company is natural gas from Liaohe Oil Field. It has been transferred to the gas source plant located at Laobian District, Yingkou City, via a 45-km pipeline from Liaohe Oil Field. After the pressure adjustment, it has been sent to the whole city. The pipes and gas tanks have been aged after many years’ usage and the gas system is unable to meet the request of the expanding city of Yingkou.
Since then, the city’s gas system needs to be updated; the energy consumption of the city needs to be optimized in order to assure the city’s demand. The pipelines of the gas system of Yingkou have been using for many years; the geological condition of the city is not good enough; the accessory is not enough; the rate of gas loss keeps at high level; and there are some serious hidden trouble in the system. So Yingkou City Gas Company takes out this project.
The route of the pipeline and location of Yingkoou Coal Gas Company are described as figure 1-1.
1.2Name, Location, Nature, and project plan
Name: Reconstruction and Expansion Project for Gas Facilities of Yingkou City
Location: Yingkou City
Nature: Reconstruction and Expansion
Investment: RMB 82,845,000 yuan, of which 31,204,000 yuan from World Bank Loan and the other from self-funded
Construction Plan: September 2008 – November, 2009
1.3Construction Contents of Project
Three contents in this construction project
1. Overhaul of the wet-style storage cabinet of the gas source plant (one is 20,000 m3, the other is 50,000m3) and build a new dry-style storage cabinet (50,000 m3)
2. Set up an intelligent gas management system
3. Gas pipeline rehabilitation: rehab of 9km natural gas transmission pipeline (DN200), upgrading of middle pressure pipeline of 20km (DN200-DN300) and of low pressure pipeline of 15km (DN200). Rehabilitation of 20 (middle pressure) and installing of 40 (low pressure) new valves, and build cathodic protection system of about 280 poles.
The details is as followed,
1.3.1 Overhaul and building of storage cabinets in the gas source plant
Overhaul for the wet-style storage cabinet of the gas source plan (one is 20,000 m3, the other is 50,000m3), including:
Ø Change the rotten steel board;
Ø Amend some of the wall board;
Ø Adjust tower guide pulley;
Ø Stabilize the entrance and exit of the pipes.
Besides, build a new dry style storage cabinet of 50,000 m3 at the free space in the gas source plan.
1.3.2 The construction of Gas Intelligent Management System
Set up a Control Center with gas intelligent Management System. Transfer the signals and commands between different units and controlling points via Supervisory Control And Data Acquisition (SCADA) System; Transfer the signal and commands in the pressure-adjustment stations and valve of the urban area’s gas system; Transfer the parameters of the user gap consumption; Load or save the documents such as the company’s files or original data.
1.3.3 Pipeline system reconstruction
1. Make a 20km-long steel pipe of medium-pressure (0.4MPa) as the main pipe from Zhuanglin Road to Qinghua Street, which will be made of PE pipe. This pipe will connect the natural gas distance transferring pipe in Hanhe Bridge. Pressure does not need to be readjusted in natural gas plants.
2. Three pressure adjustment stations will be setup on the new 0.4MPa main pipe, which locates at Lianmeng Road Cross, Guanghua Road Cross, and Qinghua Road Cross. The stations will transfer gas to the urban medium-pressure pipe (0.15MP), which will expand the gas supply area and gas supply ability.
3. Change the pipeline with 9km length, from Liaohe Oil Field Gas Station to the south bank of Daliaohe River, Tianzhuangtai Town. The part from Liaohe oil field gas station to Xintun Pressure Adjustment Station Dawa County will be changed to Spiral submerged arc - welded steel pipe which has been strengthened by 3 layers PE pipe and the part from Xintun Pressure Adjustment Station Dawa County to the south bank of Daliaohe River Tianzhuangtai Town will choose PE pipe.
4. Replace the medium or low pressure cast iron pipe and its accessory (such as valves) with hidden safety trouble. The total length of the pipe is about 15 km.
5. Replace about 30 rotten valves, meanwhile, we will choose valves with distance controlling in order to cater for the gas intelligent management system.
6. Add up sacrificial anodes cathode protection equipment in the areas of serious corrosion problem. The total number is about 280 (70 sets).
7. Add up about 40 valves in some key point of the low-pressure pipes and the pipe entrances or exits in the living areas where accident often happens.
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2 Design basis of EMP
2.1 Performance criteria
2.1.1 Environmental quality standard
(1) Ambient Air Quality Standard
The normal pollutants of environmental air quality shall apply Ambient Air Quality Standard Grade Ⅱ. (GB3095-1996). See Table2-1 for the details
Table 2-1 ambient air quality standard
Grade / Item / TSP / PM10 / SO2 / NO2Ⅱ / hour average / 0.50 / 0.24
Daily average / 0.30 / 0.15 / 0.15 / 0.12
Annual average / 0.20 / 0.10 / 0.06 / 0.08
(2) Quality Standard of Surface Water
Daliaohe River in Yingkou: Grade V of Environmental quality Standard for Surface Water (GB2939-2002)
Laobianhe River: Grade IV of Environmental quality Standard for Surface Water (GB2939-2002)
Table2-2 Quality Standard of Surface Water (GB3838-2002) (mg/L, except pH)
River / Level / pH / petroleum / CO / BOD5 / NH4+/NH3Daliaohe / Ⅳ / 6~9 / 0.5 / 30 / 6 / 1.5
Laobianhe / Ⅴ / 6~9 / 1.0 / 40 / 10 / 2.0
(3) Standard of Environmental Noise
Standard of Environmental Noise in different functional zone should adopt Standard of Environmental Noise of Urban city (GB3096-93). See table2-3 for the details:
Table2-3 Standard of Environmental Noise of Urban city (GB3096-93) Leq[dB(A)]
Grade / Daytime / Nighttime1 / 55 / 45
2 / 60 / 55
3 / 65 / 55
3 / 70 / 55
2.1.2 Discharge Standard for Pollutants
(1) Discharge Standards for waste gas
The existing boiler of the gas source plant should adopt Emission Standard of Air Pollutants for Coal-Burning Oil-burning Gas-fired Boiler (GB13271-2001)in the second periods is compliance with the maximum allowable emission standard and the second period limit after the reconstruction.
Table 2-4 Emission Standard of Air Pollutants for Boiler Unit:mg/m3
Pollutant / Limit in first Period / Limit in secondPeriodSmoke and dust / 250 / 200
SO2 / 1200 / 900
(2) Discharge Standard for Waste Water
Waste water of the factory Executes the Level II standard of Waste Water and gas Emission Standard, Liaoning Province (DB21-60-89); after the update, executes new Level II Standard; Waste water in the urban office area executes the standard of Water Treatment Unit of Water Quality Standard of the Sewage Discharged into Urban Sewer (CJ3082-1999).
Table 2-5 Discharge Standard of Waste Water Unit: mg/l(Except pH)
Pollutant / Present Level II standard of Waste Water and gas Emission Standard, Liaoning Province (DB21-60-89) / Water Quality Standard of the Sewage Discharged into Urban Sewer (CJ3082-1999)PH / 6.0-9.0 / 6.0-9.0
COD / 100 / 150
petroleum / 10 / -
BOD5 / 60 / 100
SS / 150 / 150
(3) Discharge Standard for Noise
Boundary noise of the gas source plant should adopt Standard for Noise at Boundary of Industrial Enterprises Grade Ⅱ(GB12348-90) and the pipeline in different functional zone should adopt Standard for Noise at Boundary of Industrial Enterprises Grade Ⅱ(GB12348-90) Noise during construction should perform The standard of noise limits of construction site (GB12523-90). See Table 2 – 6 and 2-7 for details
Table2-6 Standard for Noise at Boundary of Industrial Enterprises Leq[dB(A)]
Group / Daytime / NighttimeⅠ / 55 / 45
Ⅱ / 60 / 50
Ⅲ / 65 / 55
Ⅳ / 70 / 55
Table2-7 The standard of noise limits of construction site Leq[dB(A)]
Construction phase / Main noise source / Noise limitsDay time
Earthwork / Bulldozer, Excavator, Loader etc, / 75 / Earthwork
Piling / Various pile driver / 85 / Piling
Framework / Concrete mixer, vibrating needle, Electric saw etc, / 70 / Framework
Decoration / Crane, Elevator etc, / 65 / Decoration
(4)Discharge Standard for Solid Wastes
-----Standard for Pollution Control on the Industrial Solid Wastes in Liaoning Province (DB21-777-94)
-----Standard for Pollution Control on the Storage and Disposal Site for General Solid Wastes (GB18599-2001)
2.2Design Basis
This Environmental Management Plan is designed according to the laws and regulations of environmental protection in People’s Republic of China; World Bank Safeguard Operation Policy; related environment protection rules and structured documents in Yingkou city; the design documents of this project; technical documents on the construction project’s environmental impact assessment of PRC Environmental Protection Agency; international environment protocols that signed by China; etc.
3 Pollutant Discharge
3.1 Waste Gas Emission of the Project
No atmospheric pollutant will be produced while the project runs normally. If the pipe pressure were over the normal, the adjustment stations will activate the safety valve. Since this program aims to the amendment of medium-low pressure pipe, and automatic protection unit will be setup, over-pressure problems will seldom appear, so the nature gas leak will be little.
3.2 Waste water
The waste water during the project’s running is mainly the daily domestic waste water. Since no new workers needed in this project, the water consumption keeps the same as before.
3.3 Noise source
The noise source of this project is the new gas pressurization machine’s noise (85-90dB(A)). Besides, if the new pressure adjustment station’s pressure is over the normal range, the safety valve will be activated, just at the moment the gas released, noise will be burst out at the maximum of 85 dB(A).
3.4 Solid waste
The solid waste of this project is the 3 new adjustment station’s used filter, which will be replaced on time. Usually, filter will be changed ever 3 months. The weight of a filter is about 0.5kg, so the yearly solid waste is about 0.006t/a.
3.5Pullutant reduction by the newer for the replacement of the old one
The main method of using the new to replace the old in this project is to solve the over release of smoke and dust from the factory’s boiler and daily waste water. By means of the update of the boiler’s dust remover and water treatment system, the correct smoke filter system and waste water treatment system will help the factory reduce pollutant and reach the limit , so that the amount of pollutant will be reduced. After this method, the pollutant of Yingkou Coal Gas Company will be as follow table 3-1.
Table3-1 The change of pollutant amount Unit:t/a
Waste / Pollutant / Present Amount / Project Amount / Reduction by the methods / Future Amount / Amount changeGas / Smoke / 15.4 / 0 / 12.3 / 3.1 / -12.3
SO2 / 10.5 / 0 / 0 / 10.5 / 0
Water / CODCr / 2.56 / 0 / 0.26 / 1.30 / -0.26
SS / 1.5 / 0 / 0.15 / 1.35 / -0.15
Animal/Vegetable Oil / 0.08 / 0 / 0.005 / 0.075 / -0.005
NH4+/NH3 / 0.08 / 0 / 0.005 / 0.075 / -0.005
Solid / Boiler Ash / 250 / 0 / -12.3 / 262.3 / +12.3
Daily solid waste / 66 / 0 / 0 / 66
Wasted filter / 0.16 / 0.006 / 0 / 0.166 / +0.006
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4 Analysis of the Environmental Impact
4.1 Status Quo of Environment Quality
(1)Ambient Air Quality
According to Yingkou City Environment Report 2006, The air quality of Yingkou city is as table 4-1.
Table 4-1 Air Quality in Yingkou City Unit:mg/m3
Pollutant / Annual Average / Exceeding standard multiple / Functional Area / SeasonIndustry / Residents / Traffic / Clean / Winter / Spring / Summer / Autumn / Heating Period / Non-heating Period
TSP / 0.170 / - / 0.190 / 0.220 / - / 0.120 / 0.190 / 0.180 / 0.160 / 0.160 / 0.190 / 0.170
SO2 / 0.016 / - / 0.025 / 0.014 / - / 0.002 / 0.050 / 0.007 / 0.005 / 0.004 / 0.050 / 0.005
NO2 / 0.022 / - / 0.024 / 0.028 / - / 0.017 / 0.032 / 0.032 / 0.012 / 0.014 / 0.032 / 0.019
According to the above table, The annual average of TSP, SO2 , and NO2 in Yingkou’s different season and area will satisfies Grade II of National Ambient Air Quality (GB3095-1996), the air quality is quite good.
(2)Water Environmental Quality
According to Yingkou City Environment Report 2006, the water quality of Daliaohe River in Yingkou is as table 4-2.