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TRANSCRIPT
E788 V. 4CHINA 4TH INLAND WATERWAYS January, 2003
Lianjiang Xiniu Navigation Junction Complex Sub mpnew/
Environmental Action Plan
Draft Second
Jan. 2003
South China Institute of Environmental Sciences, SEPA
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Project Owner: Guangdong Province Waterway Bureau
EIA Undertaken by: South China Institute of Environmental Sciences, SEPA(SCIES)
EIA Certificate Number: National EIA Certificate Grand A Number 2801
General Responsibility: Professor Xu Zhencheng, Director of SCIES
Expert Consultants: Professor Wang Junsan (Local Ecological Expert)
Professor Chen Zhanghe(Local Land-Plant Expert)
Professor Han Boping (Local Aqutic Ecological Expert)
Professor Chen Xianglin(Local Ichthyologic Expert)
Professor Li Kaiming (Local Hydraulics Expert)
Professor Zhen Fantang (Local Water Environmental Expert)
Technical Responsibility: Professor Han Baoxin, Deputy Director
EIA work Responsibility: Liang Mingyi
Work Group Leader: Mr. Cai Xinde
Mr. Qian Donglin
Complied by: Cai Xinde, EIA Certificate GD-03820
Qian Donglin, EIA Certificate -13102
Liang Mingyi, EIA Certificate GD-03828
Zhang Yuhuan, EIA Certificate GD-03824
Huang Zhengguang, EIA Certificate GD-03837
Li Zhao Yong, EIA Certificate GD-03832
Shen Qian, EIA Certificate GD-03830
Examined by: Han Baoxin
Finalized by: Xu Zhencheng
Content
0 BRIEF INTRODUCTION TO THE PROJECT ................................................ 1
1. GOAL OF ENVIRONMENTAL PROTECTION ................................................ 1
1.1 GOAL OF ENVIRONMENTAL PROTECTION IN CONSTRUCTION PERIOD ..................... I
1. 1.1 Water environment .................................................. 1
1.1.2 Ecological environment ................................................... 1
1.1.3 Traffic order .................................................. 2
1.1.4 Acoustic environment and atmosphere environment ..................... ............... 2
1.1.5 Others .................................................. 3
1.2 GOAL OF ENVIRONMENTAL PROTECTION IN OPERATION ........................................ 3
1. 2.1 Water quality .................................................. 3
1. 2.2 Acoustic environment .................................................. 3
2. PROJECT DESCRIPTION ................................................. 3
2.1 CONSTRUCTING SCALE AND MAIN COMPONENTS OF THE PROJECT ......................... 3
2.2 SCALE AND MAIN ITEMS OF NAVIGATION LOCK CONSTRUCTION ............................ 4
2.3 SCALE AND MAIN ITEMS OF POWER STATION CONSTRUCTION ................................ 5
2.4 REGULATION FOR RUNNING OF RESERVOIR ............................................... 5
2.5 CONSTRUCTION OF RIVER DIVERSION ............................................... 7
2.5.1 Standards of river diversion ................................................ 7
2.5.2 Measures of river diversion ............. ................................... 7
2.5.3 Characteristics of cofferdam ................................................ 8
2.5.4 Construction of cofferdam ................................................ 9
2.6 THE CONSTRUCTION OF THE MAIN WORKS ............................................... 10
2.6.1 the engineering quantity .......................................... 10
2.6.2 the construction of the earth-rock engineering .......................................... 12
2. 6.3 the construction offoundation treatment works ......................................... 13
2.6.4 the construction of concrete and reinforced concrete ................................ 13
2.6.5 stone masonry ................................................................ 14
2.6.6 electromechanical and steel structure installation ..................................... 14
2.7 THE GENERAL SCHEDULE OF THE CONSTRUCTION ....................................... 15
2.8 THE NATURAL BUILDING MATERIAL AND THE CONSTRUCTION ROAD ................... 16
2.8.1 the natural building material .................................................... 16
2.8.2 the construction site and the construction pavement .................................. 18
2.9 THE SCHEME OF THE CONSTRUCTION COLLOCATION ............................................ 19
2.10 RESERVOIR SUBMERSION .................................................... 21
2.11 WATERWAY REGULATION IN DOWNSTREAM .................................................... 22
2.12 THE ASSESSMENT OF PROJECT INVESTMENT AND ECONOMIC BENEFIT ............... 22
3. ENVIRONMENTAL PROTECTION MEASURE ............................................ 23
3.1 ENVIRONMENTAL PROTECTION MEASURES FOR THE COMPLEX .......................... 24
3.1.1 PRE-CONSTRUCTION PHASE ..................................................... 24
3.1.2 CONSTRUCTION PHASE .................................................... 25
3.1.2.1 Water quality protection measures .................................................... 25
3.1.2.2 Fishery resource protection measures .................................................... 27
3.1.2.3 Prevention measurefor noise control .................................................... 27
3.1.2.4 The prevention measures for land erosion ............................................... 28
3.1.2.5 Other measures .................................................... 30
3.1.3 OPERATION PHASE .................................................... 33
3.1.3. 1 Water quality protection measures .................................................... 33
3.1.3.2 Erosion and bank slumping protection .................................................. 33
3.1.3.3 Fishery resource .................................................... 34
3.1.3.4 preventing accident .................................................... 34
3.2 ENVIRONMENT PROTECTION MEASURES FOR WATERWAY DREDGING PROJECT..34
3.2.1 Design phase ................................................. 34
3.2.2 Construction phase ................................................. 35
3.2.3 Operation phase ................................................. 35
4. ENVIRONMENTAL MONITORING PLAN ..................................................... 36
4.1 MONITOR ITEMS AND ASSESSMENT STANDARD ................................................... 36
4.2 ENVIRONMENTAL MONITORING IN CONSTRUCTION PHASE . .................................. 37
4.3 ENVIRONMENTAL MONITORING IN OPERATION PHASE ......................................... 38
4.4 ENVIRONMENTAL MONITORING REPORT ..................................................... 39
5. ENVIRONMENTAL MANAGEMENT PLAN .................................................. 39
5.1 THE ORGANIZATION, RESPONSIBILITY AND IMPLEMENTED SYSTEM FOR
ENVIRONMENT ADMINISTRATION ...................... 39
5.1.1 Organization Framework ....................... .. ,.,,.,,. 40
5.1.2 Responsibilities ...................... 41
5.1.4 CONTRACT DOCUMENTS ...................... 42
5.2 ENVIRONMENTAL TRAINING ...................... 42
5.2.1 Environmental protection knowledge and ability training ............. ............ 43'
5.2.2 Environmental protection ability training .................................................. 43
5.2.3 Training fees ................................................... 44
6. TIME SCHEDULE FOR ENFORCEMENT OF ENVIRONMENTAL
ACTION PLAN ....................................................... 44
APPENDIX SUMMARY OF ENVIRONMENTAL PROTECTION MEASURES ...................... 462.1 BASEMENT OF THE PROJECT EIA ........................................................ 1
2.1.1 Environment related Laws and Regulations ................................................. 1
2.1.2 Technical Guidelines ........................................................ 2
2.1.3 Project Proposal and Feasibility ........................................................ 3
2.4 ENVIRONMENT STANDARDS AND CONTROL STANDARDS OF POLLUTANTS ........... 3
2.4.1 Surface Water ........................................................ 3
2.4.2 Noise ........................................................ 4
2.4.3 Air Environment ........................................................ 5
2.4.4 River sediments ....................................................... 6
2.4.5 Soils ........................................................ 6
O Brief Introduction to the project
Xiniu Navigation Junction Complex is situated in 3.5 kilometers of the upper reaches of
Xiniu Town, Yingde City, Guangdong Province; it connects with Jiaqiaoshi Navigation
Junction Complex of Hanguang Town of Yingde City upwards, and joins with
backwater location of Feilaixia Navigation Junction Complex. For the details of its
geography situation please see Fig. 1-1.
This project is a Navigation Junction Complex constructing project. It included
navigation lock, discharging sluice, power station, project of protective revetment, a
little dredging works in downstream (The length of excavation section is 1630 km that
will produce 25790m3 of dredging load; three new spurs will be built along the
downstream.), temporary projects, living area, etc.
Investment of project: The investment is estimated at RMB 267,078,000.00.
1. Goal of environmental protection
1.1 Goal of environmental protection in construction period
1.1.1 Water environment
During the cofferdam constructing, dam constructing, the upstream and downstream
cofferdams removing, and the excavation of both shipping way and foundation pit
within cofferdam, the SS may be discharged into the water and cause water body
pollution. The mail goal of water quality protection is Xiniu Town waterworks.
1.1.2 Ecological environment
The construction times will about three years from 2003 to 2005. The normal hydrology
condition and the living condition of aquatic will be interfered due to the construction of
the project; the vegetation be damaged and land erosion become serious. Although the
perturbation caused by construction of the project is unavoidable, but we can take some
measure to protect the surrounding.
The main objective for ecological environment is fishery resources in river, water and
soil erosion and vegetation recovery.
1.1.3 Traffic order
The navigation construction may influence the local traffic order. The chiefly reason is
that the amount of vehicle using for transporting construction material will increase in
construction period. At the moment, the objective is the safety of local people.
1.1.4 Acoustic environment and atmosphere environment
The equipment, such as concrete mixer, etc. are the main noise pollution sources in
construction time, some of them belong to the strong noise pollution sources.
Earth and stone excavation, pilling and transport the building material, etc. will cause
dust in the construction period of the project. The dust should be so controlled that the
regional air quality can reach the class 2 standard of quality standard for environmental
air. Main objective for acoustic and atmosphere environment is residential area both
along the river and the transport road. The protection goal shown in table 1-1 and shown
in Fig. 3.3, Fig. 3.4.
Table 1-1 the protection goal of the noise and air pollution prevention
Name Type Location Impact factors Distance from
the factors to
objectives
Tenliaocun Residential WS of the dam Dam 500m
area constructing
Jiezaicun Residential ES of the dam Dam 450m
area construction
shangxinwu Residential ES of the dam Dam 770m
area construction
Zhangwu Residential WN of the dam Dam 800m
area construction
Xiniu agriculture shool About 2300m at the Trucks on the lOOm
school NE of the dam road
Intake of Xiniu Intake Downstream 3.5km Dam 3.5km
2
Project (SL201-98).
1.3 Project Proposal and Feasibility
1) Project proposal for the Lianjiang Xiniu Navigation Junction Complex:
2) Feasibility Study Report of the Lianiiang Xiniu Navigation Junction Complex:
3) An Introduction to the Lianjiang Xiniu Navigation Junction Complex:
4) Letter to SCIES for EIA study of the Lianiiang Xiniu Navigation Junction
Complex issued by Guangdon, Province Waterway Bureau (Januarv of 2002).
2 Environment Standards and Control Standards of Pollutants
2.1 Surface Water
Water Ouality Standard
According to the water function directory of "Water Resource Quality Protection
Program of Guangdong Province" and "Water Environmental Function Directory
(trial)", the environment functions of the Lianiiang River in section from Hanguang to
Lizui is Class III. in section from Lizui to Xiniu Town is Class II, and in section from
Xiniu Town to downstream is Class III (also shown in the Fig.2.1). "Environmental
Quality Standard for Surface Water" (GB 3838-2002) is the environmental quality
standards for surface water assessment. Besides. the following standards are as
references:
1) Water Ouality Standard for Fisheries (GBI 1607-89). The stipulations for SS in the
standard says "increased SS concentration in the water by any activity is no more than
0m/L". "no harmful impacts should be allowed on any fish, shrimp or shellfish, if
suspended solid set down to the bed":
2) Hygiene Standard for Drinking Water (GB5479-85): and
3) Standard for Irrigation water Quality (GB5084-92).Table2.l Environmental quality standards for surface water (GB3838-2002) (m2/L)
Items ClassI 11 JmIrv IvpH 6-9
3
The navigation lock and power station are planed to build up on the same shore. i.e.
the left shore: the navigation lock is near in shore while the power station close to the
river. The buildings from the left to right one by one are navigation lock, separation
zone, of power station. 11 holes 8.0 meters in width flood diversion sluice, 21 holes 8.0
meters in width flap down gate, with its right shore get in touch with the dam. The
panoramic view of the Complex is shown in Fig. 1.2. The Layout of the Complex is
shown in Fig. 1.3. The vertical and cross-sectional designs of the complex are illustrated
in Fig. 1.4.1 .5,1.6.
(3) Grade of engineering and class of buildings
(I) Grade of engineering: The third grade
02 Class of buildings: Main water-engineering building is at the 4h class,
subordinated and temporary water-engineering building at the 5h class.
(4) Dam height and Characteristic stage of water level of reservoir and backwater
distance
(QDam height is 8.5m;
(®The normal level of reservoir at upstream is 29.0 meters(above sea level):
(®The stagnant level of reservoir at upstream is 28.5 meters(above sea level!:
(OThe distance of backwater is 12.27 km;
05 Total capacity is 78.20 million m3 (in flood water level) and 10.70 million m3
(in normal water level).
2.2 Scale and main items of navigation lock construction
(1) Design standard of lock is VI. and the maximum through capacity of ship is
1 00 tons.
(2) Serving times is 15 years:
(3) Lock dimension is 120x12x2.5m; and
(4) Shipping amount of goods is 2 million tons annually.
In the near future: 994 thousand tons (single-direction cargo freight) and 1.243
4
million tons (double-direction cargo freight);
In the further future: 2.0314 million tons (single-direction cargo freight) and 2.825
million tons (double-direction cargo freight).
2.3 Scale and main items of power station construction
(1) Installed capacity and units: 6400 KW /4 units
(2) Annual electricity generated: 35.96 million KW
(3) Annual installed utilization hours: 5619h
(4) Main equipment and model: See Table 2-1.
Table 2-1 Main electrical and mechanical equipment of power station (Recommended
plan)
No. Name Model Quantity
1 Hydraulic turbine GZSKl I 15-WP-290 4 units
2 Dynamotor SFWG1600-44/3000 4 units
3 Excitation device KLSF-2 4 units
4 Speeder BWST-100-4 4 units
5 Oil pressure device HYZ-2.54 4 units
6 Oil-leaking device 47100B/0.3 4 units
2.4 Regulation for running of reservoir
The principle of regulation means for the reservoir of this project is as the
followings: 1. Navigation must be ensured; 2. Generate electricity as many as possible;
3. It should be suitable for sand discharging and washing out; 4. Reduce the submerging
objectives within reservoir area and the height of water-retaining works as possible.
Therefore, according to the requirement of navigation, characteristics of
electricity-generated units and hydraulic calculation result of the middle dam location,
the regulation means for this reservoir should be as the followings:
(1) When real water discharge in dam site Qw< designed water discharge of power
station QD(4 X 53.14m3 / S), the discharging sluice will be closed completely, namely
discharge of flood diversion sluice Qs=O, and the regulation shall be in accordance5
with discharge used for generating electricity QG=Qw, and the reservoir keeps running
at a normal water level of 29.0m. In order to generate electricity as more as possible and
ensure water depth of the upper reaches, it is necessary to avoid the reduction of water
level of reservoir.
(2) When QD<Qw<990m3 / s(The flow discharge in dam site when the generator
units could run), all the 4 generator units will generate electricity at the same time.
The flood diversion sluice of 3 holes shall be opened 1.5m for discharging, and the
regulation shall be in accordance with the pattern of Qs=Qw-QD, and the normal
water level of reservoir shall be kept at 29 m for running.
(3) When 990m3./ s<Qw<l5OOm 3 /s, all generator units are closed and the power
station stops generating electricity. Flood diversion sluice of 11 holes is opened from
partly to completely, and the water level in front of dam shall be kept at 29.0m. When
the water level in front of dam exceeds 29.05m, flap sluice will dump for discharging
flood and the regulation shall be in accordance with QwQG, and the normal water
storage level of reservoir shall be kept for running.
(4) When 15OOm3/s<Qw<333Om 3/s (the maximal limit of flow discharge for
navigation), all discharging sluices shall be opened completely till water level reach
up the highest water level 31.31m (the highest level to navigation). Then, the power
station will be closed and the navigation lock will be open to normal navigation.
(5) When Qw>3330m3/s, the navigation lock shall be closed, all the discharging
sluice and flap sluice shall be opened for discharging flood till non-flood level. The
frequency was about 50%.
(6) Opening and closing procedure of the discharging sluice: according to the
regulation mode mentioned above, as long as Qw>QG, the discharging sluice of 3
holes close to power station shall be opened unifornly until all sluice doors are
opened for discharging flood. This will benefit sand washing and discharging at the
exit area of entrance channel and the front of power station.
6
2.5 Construction of river diversion
2.5.1 Standards of river diversion
According to the requirements from Grade Partition and Design Standards of
Water resources and Water Electricity Complexes (SDJ12-78) and Design Standardfor
Construction Organization of Water Resources and Water Electricity Project
(SDJ338-89), meanwhile considering the scale of this project, the construction
standards of river diversion of this project is designed at flood standard of a interval in 5
years.
2.5.2 Measures of river diversion
The dam of this project is situated in a rather wide riverbed, and central sandbank
present at the upper and lower dam axes. The main buildings of Complex such as
navigation lock, plant of power station as well access road (see 2.10.2) are located in the
left bank of riverbed, meanwhile navigation break due to construction has a very big
influence to the transportation of Lianjiang River. According to the natural conditions
and buildings layout mentioned above, river diversion by stages shall be adopted to this
project. At the first stage, the left bank shall be constructed first. In order to use the
discharging sluice to finish river diversion of the secondary stage, the navigation lock,
plant of power station on the left bank and partial discharging sluice shall be
constructed at the first stage.
Through comparing all plans of river diversion by stages, we selected the river
diversion plan of 3 periods in two stages: the navigation lock, plant of power station on
the left bank and partial discharging sluice shall be constructed at the first stage, and
then under the protection of the first stage of cofferdam, concrete pouring of navigation
lock, bottom board of discharging sluice, pier of sluice and partial plant of power station.
At the secondary stage, the slope protection of the upper and lower entrance channel as
well as the installation of its steel structure shall be finished to reach up the conditions
for opening to navigation; and also the installation of steel structure of discharging
sluice shall be finished to reach up the requirement for river diversion; concrete pouring
under the flood-proof wall of plant shall be finished. And the flap sluice dam on the
7
right bank shall be constructed at the secondary stage. The time limit for the electricity
generating of the first generator unit in this project is at 24 months. The hydraulic
calculation result for river diversion scheme of 3 periods in two stage is as the following
Table 2-2.
Table 2-2 Hydraulic calculation result of river diversion scheme
Construction by Name of Period of stream Designed flow Water level Type of Elevation of Maximum
stages cofferdam guidance(month) quantity (m 3 s) (m, cofferdam cofferdam top height of
above (m) cofferdam (m)
sea
_____ ____ __ _ ____ ____ level)
The first stage Cofferdam at the 2290 30.25 Core wall of 31.55 7.75
upper reaches soil and stone
Cofferdam at the 8-3 29.34 Core wall of 30.34 7.64
lower reaches soil and stone
Longitudinal Core wall of 31.55-30.34 8.25
cofferdam soil and stone
The secondary Cofferdam at the 1980 28.95 Core wall of 30.25 7.30
stage upper reaches soil and stone
Cofferdam at the 10-3 28.75 Core wall of 29.75 6.1
lower reaches soil and stone
Longitudinal Mortar rubble 30.25-29.75 8.0
cofferdam masonry
2.5.3 Characteristics of cofferdam
Cofferdam of the first stage: according to the topography and geology conditions of
dam site, during low water season, the base rock of left riverbed of the upper Liangzhou
is bare; while the topography of lower Liangzhou is rather higher, and its riverbed is
covered with sand and gravel. Therefore, the longitudinal and horizontal cofferdam will
be filled with sand, gravel and soil in core, and its echelon section shall be 2.Om wide at
top, slope of upstream is at 1:2, while the slope of lower-stream is 1:2 - 1:1.5. For the
characteristics of cofferdam and engineering volume please refer to Table 2-3 and 2-4.
Cofferdam of the second stage: by taking advantage of the sluice pier between the
8
1 1h hole of discharging sluice and flap sluice, mortar rubble masonry is adopted to
extend the cofferdam at the upper and lower reaches of sluice pier. According to the
constructional arrangement conditions, longitudinal cofferdam at the upper reaches of
sluice pier shall be extended with 60m; while 90m for the lower reaches; the section
shape of cofferdam is echelon with top width at 2.0m, slope of upstream and
lower-stream are at 1:0.5. The structure and size of the horizontal cofferdam at the
upper and lower reaches shall be the same with that of the first stage.
Table 2-3 Characteristics of cofferdam and engineering volume
Chaiisofcnfiin __WrouMe_
Cofferdam p*ofEf fCiEaofmil mgl SO TOW
name .n lowt flo _afh &fs-& Dca oe
Upper 3Qr5 3155 12 775 2275 4550 14883 300 1500
cofferdam _
Lwer 3320cofferdam Mhl:&3 2290 2934 3034 180 7.64 3729 7372 22448 684
Lngitudinal 31.5 426 825 6731 11842 31211 1739 86/
cofferdamr
Upper 2&95 29.95 127 73 3247 7350 265 488 2442
cofferdam
Lower Month 1595
cofferdarn 10-3 1980 28.75 29.75 127 61 3332 5347 11031 319
Longitudinal 2 1 0 0 13265
cofferdam I___ 150 80 14 O O 6
otal I 1140 30780 36461 105938 6183 30816 179362
Table 2-4 Engineering volume of clay and sack fro cofferdam
Cofferdam Period of Designed Designed Elevi of CofiadEffn 1irnim Clay (mi) Sack (piece)name Iriver flow water level cafra o *he of
diversion discharge I tp b darfn
Cofferdarn of
the lower Month 11-1 516 25.8 2630 590 3.5 1230 12300
reaches
2.5.4 Construction of cofferdam
Filling of soil and stone cofferdam: 70% of the total engineering volume shall be
excavated and carried by loading truck of 3m3 and 3m3 backhoe, and a self-loading truck
of 8-1 5T shall be on the top of cofferdam. 30% of the total engineering volume shall
adopt the soil excavated from foundation pit directly, and then bulldozer is used to
surfacing, leveling and tamping. The soil excavated from navigation lock shall be
adopted, the 3m3 loading truck and self-loading truck of 8T shall be used to carry and
9
unload soil. Partial gravel of the first stage of cofferdam shall be excavated and taken
from the shoal of upper reaches of lower Liangzhou.
Longitudinal cofferdam of mortar rubble masonry: slurry mixer shall be adopted to
produce mortar; stripe block stone is installed.
Excavation of stone engineering: manual drill shall be used to bore, millisecond
electrical detonator for explosion, 3m3 loading truck and self-loading truck of 8T for
slag carrying.
After filling of cushion layer for geotextile core wall is finished, manpower sticking,
connection and spreading shall be carried out, filling materials of two sides shall be
raised intercrossed to form a shape of serration.
Hydraulic pressure backhoe of 1.5-2.0m3 shall be used for dismantling cofferdam
of stone and soil, and self-loading truck of lOT for carrying slag. Pneumatic drill shall
be used for boring when dismantling cofferdam of mortar rubble masonry, millisecond
electrical detonator for explosion, 2m3 backhoe for excavation and self-loading truck of
I OT for slag carrying.
Drainage of foundation pit: the water includes the seeper before excavation,
seepage water of cofferdam and foundation, as well as rain water and so on. 2-4 pumps
8shBA-(3 10 m3/h) and 10 submerged pumps JQB4-19-(100 m 3/h)shall be used for
taking out and draining water.
2.6 The construction of the main works
2.6.1 the engineering quantity
The main works consists of such buildings as ship lock, power workshop, flushing
sluice, etc. the quantity of the main works: earth-rock excavation 597,500m3 , earth-rock
backfilling 135,400m3, (including bank protection backfilling 48,720m3 ), concrete and
reinforced concrete 181,000m3 , curtain grouting 1915m, steel production and
installation 3056t, cement rubble 14,300m3; and the quantity of main works, such as
structure engineering, is shown in Table 2-5.
Table 2-5 the engineering quantity of different structures in the main works
10
Serial Name Unit Quantity and Remarks
No. characteristic
I Power station
Sandy scree excavation l O,000m3 6.29
Rock excavation 10,000m3 1.94
Earth and rock 10,000m3 1.32
backfilling 1_32
Concrete and reinforced I0,00m3 4.97concrete
Steel production and t 2526.0installation
Metal structure tinstallation 313.0
Curtain grouting m 615.0
2 Flood discharge gate
Sandy scree excavation I 0,00Om 3 6.99
Rock excavation I 0,00Om 3 0.21
Earth backfilling 10,000m3 1.47
Concrete and reinforced I 0,000m3 4.24concrete
Steel production and t 509.0installation
Metal structure tinstallation 251.4
Curtain grouting m 800.0
3 Ship lock
Sandy scree excavation I 0,000m3 41.56
Rock excavation 10,000m 3 1.40
Earth-rock backfilling l0,000m3 5.87
Concrete and reinforced I 0,00Om 3 8.89
concrete
Steel production and t 70.0
installation
Metal structure t
installation 342.0
Curtain grouting m 500.0
4 Revetment engineering
C15 concrete 10,OOOm3 1.54
C25 concrete l0,000m 3 0.12
Earth-rock excavation I0,00Om 3 1.35
.1.
Steel bar t 178.58
5 Transportation km 3.5 Fourth-grade road leading to the
engineering _ workshop
6 House construction m2 6500 The rooms of machine repairing,
I__ __ ___ __ ___ ___ __ I____________ I___________ _ w orking, and living
2.6.2 the construction of the earth-rock engineering
The earth-rock engineering consists of earth and sandy scree excavation, rock
excavation, and earth-rock backfilling.
Earth and sandy scree excavation: excavation gross 562,000m3, thereinto ship lock
415,600m3 , flood discharge gate 70,000m 3, workshop 62,900m3, revetmentl3,500m 3 ,
and all of these belong to overburden layer excavation, and are transported by dump
truck with the backhoes of 2 m3 and 3 m3 , and 8T-I ST load, and as the embankment
materials in first-period and second-period cofferdams.
Rock excavation: excavation gross 35,500m3 , thereinto ship lock 14,000m3,
workshopl9,400m3 , flood discharge gate 2,100m3 .
Rock excavation of ship lock is mainly head-bay and flat footing. Excavate from
protective lay, use hand drill to punch, use blasting cap to explode the shallow statum,
and clear away the weathered breaking layer on the surface layer of the base rock,
collect the leavings by the bulldozer with 180 horsepower, load by the 1.5 m3loader,
transport the leavings by 8Tdump truck.
The depth of rock excavation of workshop is mostly 6.Om below rock layer; the left
side is the bank, and the right side is flood discharge gate, so use Type-100 hidden-hole
drill to punch, execute peripheral presplit blasting, and use millisecond blasting cap to
explode. The basic reserved protective layer is punched by hand drill, and exploded by
the blasting cap. And 2m3 face shovel and 2m3 loader are used, and then 12Tdump truck
is used to transport the leavings. The route of transporting the leavings is set within the
tail water channel on the downstream, and is descended to the excavating layer at 10%
slope with the descent of the excavating layer, and is excavated away gradually in
regression. The leavings are transported through the first-period downstream cofferdam
to the insulation zone between ship lock and power station as the filling material of the12
second-period cofferdam, or are transported to the spoil area.
Earth-rock backfilling: earth-rock backfilling gross 135,400m3 , thereinto ship lock
58,700m3 , flood discharge gate 14,800m3 , power station 13,200m3 , revetment48,700m3 .
The excavation materials can be used as the backfilling materials, and are
respectively piled in the spoil storage areas 0.5km from the left bank and the right bank.
When backfilling, 1.5 m3 loader is used to load, and 8Tdump truck is used to transport,
and the bulldozer of 180 horsepower is used for flattening out and compacting.
2.6.3 the construction of foundation treatment works
Power station workshop, ship lock, and flood discharge gate in this works are built
on the bed rocks, and the bed rocks are integrated, so little curtain grouting is needed;
and the overall depth is 1915m, so the single-row holes are set, with pore distance
2.0m, and the deepest hole 8.0m. 1.5m baseboard is set on each pier, working in the sun,
and not occupying the straight construction period.
Curtain grouting is executed under the pressure of 2.5-depth concrete, and
Type-100 geologic drill is used to punch, and 0.4 m3 mortar mixer is used for pulping,
and the medium-pressure grouting is executed from the top to the bottom, and air tight
seal is carried out in three layers.
In construction period, geologic group should be invited to explore and drill for
finding out the solution grooves, solution caverns, and route ways in order to guide the
treatment of solution caverns. According to the obtained data that there are few and
small solution caverns in the dam site, and there are fillings in most solution caverns,
the grouting consolidation treatment should be considered.
2.6.4 the construction of concrete and reinforced concrete
The gross concrete of this project is 181,000m3 , hereinto ship lock 88,900m3,
workshop 49,700m3, flood discharge gate 42,400m 3, revetment engineering 15,300m3 .
The concrete casting of the structures within the cofferdam on the left bank in the
first period is about 75% of the gross quantity, and the concrete casting of the structures
within the cofferdam on the right bank in the second period is about 25% of the gross
quantity. In order to meet the need of concrete peak intensity, a concrete mixing station
13
composed by 2 X 0.4m3 and 0.8m3 is set on the left bank; and the concrete mixing
station on the right bank is composed by 2 X 0.4m3 mixers from the mixing station on
the left bank.
(1) Concrete construction on the left bank
Concrete is transported to the construction site by 8Tdump truck from the mixing
station 0.5km away from the upstream dam site, and is put into the 3m3horizontal pot,
and is swung by 10-15T crane into the bin, and is compacted by the electric internal
vibrator.
(2) Concrete construction on the left bank
Concrete content of flood discharge gate within the cofferdam on the right bank in
the second period, and such main structures as ship lock and flood discharge gate have
been finished basically, so 2 X 0.4m3 mixer is transported to the right bank from the
mixing station on the left bank. Concrete construction is same with that of left bank.
(3) Steel production and installation
A steel bar plant is set on both bank, and steel bars are processed mechanically,
and transported by 8T truck, and swung to the site by 8T crane, and colligated by
manpower.
2.6.5 stone masonry
Stone masonry is mainly distributed on the quays of ship lock and flood discharge
gate, and on the upstream and downstream revetment works, with the total quantity
15,400m3. Stone materials are obtained by purchasing, and transported horizontally by
8T truck, and swung vertically to the site by manpower or head frame, and pulped in the
mixing station, marshaled by manpower.
2.6.6 electromechanical and steel structure installation
For this project, there are 4 sets of hydro generator units in the power station, 5
working gates and overhauling gates, 4 trash racks, 1 trolley, 4 sets of hydraulic
headstock gears, 32 working strobes of flood discharge gate (there into 11 plane gates
and 21 flap gates), 3 overhauling gates, 11 windlasses, I moving trolley, 1 hanger
trolley, 2 hangers, 4 miter gates of ship lock, 4 valves, 8 sets of hydraulic headstock
14
gears.
The gate flap of the strobe is made in segment, and put together on the spot, and
swung to the site by 10-25T crane. The hydro generator units are swung to the spot by
bridge crane.
2.7 The general schedule of the construction
The total construction period is 31 months, hereinto the construction preparation
period of 2 months, the construction period of the main works of 24 months, -the
completion period of the project of 5 months. The construction period of the generation
of the first generating unit is 26 months.
According to the criterion, the construction of this project is divided into
pre-construction period, construction preparation period; the construction period of the
main works, and the completion period.
(1) The pre-construction period
This period refers to the period in which the owner is responsible for the
preliminary work before the commencement of the project, and is not considered in
the total construction period. In this period, reconnaissance and design, the
examination and approval of the project, the tender, obtaining the agreement and
support of the local government, the transportation, the spanning of the leased
electrical line of the construction, land requisition, the repairing of some temporary
houses will be finished; and the construction in this period will be finished at the end
of June in the first year.
(2) The construction preparation period
This period is from the commencement day of the construction to the forming of
the cofferdam on the left side of the riverbed. The preparation period of the project is
12 months, from the date on which the construction party enters the site, i.e. August I
in the first year, to the date of cutoff of the cofferdam on the left bank at the end of
September in the first year. In this period, such tasks as first-stage vertical and
horizontal cofferdam on the left bank, the digging of the partial foundation of ship
15
lock and workshop, the setting of the concrete system, the construction roads,
workshops, storehouses, living welfare establishment in the site will be basically
finished.
(3) The construction period of the main works
The construction period of the main works is from the construction of the riverbed
on the left bank in October in the first year to the completion of the first generating
unit on October 1, the third year, and is 24 months altogether.
Ship lock, flood discharge gate with 11 holes, power station workshop on the left
bank, and the main body of the flap gate with 21 holes, the installation of the'
electromechanical and metal structure of the ship lock, the installation of the metal
structure and electromechanical equipment of the flood discharge gate, the installation
of subsidiary workshop and booster transforming and distribution equipment, the
installation of the first unit equipment, and the generating of the first unit will be
finished in this period.
(4) The completion period
The completion period of this project is from the installation of the first generator
unit in February of the fourth year, and is 5 months altogether.
The installation and debugging of the second, third, fourth units, revetment,
evanescence and the clearing-up of the construction completion will be finished in this
period.
2.8 the natural building material and the construction road
The position of the material site of the natural building material and the route of the
construction road are shown in Fig. 1-8. (Fig. 1-8 is already added.)
2.8.1 the natural building material
The natural building materials needed in this project are composed of concrete
coarse aggregate, concrete fine aggregate, cofferdam earth, and rock material. The
materials needed in this project are purchased, and new quarries and sand plants are not
set again.
16
(1) Rock material
The rock material site is located to the northeast of the dam site area, and 5km from
dam site area, and on the hillside on the northeast of Laodengwu. Roads are directly
connected with cement factory beside the dam site area. The rock material site has been
exploited in a small scope, and can be exploited conveniently.
The rock material belongs to calcareous rock, in deep-layer and huge deep-layer
shape, of Cids under Carboniferous system, and is in slight weathering state, and the rock
is in the same type, and the rocks are very hard. The quality of rock material basically
meets the technical needs of hydraulic concrete coarse aggregate and block stone. The
planned need of rock material is about 320,000m 3.
(2) Gravel sand material (coarse aggregate)
The natural coarse aggregate site is composed of gravel sand material site 1 and
gravel sand material site 2. Gravel sand material site I is located in the middle part of up
Liangzhou, and gravel sand material site 2 is located on the north of down Liangzhou.
The two gravel sand material sites is 0.1km from the middle dam site (dam site 2), and
can be excavated directly, and be used through washing and sifting-out. According to
the test, the sand content and the impurity content of gravel sand material accords with
the criterion. The planned need of gravel sand material is about 440,000m3 .
(3) Gravel material
The gravel material sites are located within 3km from the riverbed of Xiaosheyu
river section at the spot of 13km in the downstream of Lianjiang River in dam site area,
and are all below the water, and can be transported directly to the dam site area by sand
boats, with convenient transportation. The material element of the gravel material is
mainly quartz, and contains little black mineral, and its sand content is less than 1.1%,
and the impurity content is less than 0.9%, and its fineness modulus is 3.4, and it is
well-graded, and all of its indexes accord with the criterion, and is fine natural building
material.
The sand layers in the gravel material sites are stable, with the depth of 2-3m, and
the width of l OOm, and the length of 3000m, with the storage content above 60 -90m 3 ,
and can basically meet the need of the gravel use of the design concrete. The planned
need of gravel material is about 260,000m3 .
(4) earth material
The four reconnaissance earth sites near the dam site:17
(I)earth material site 1 is located on the northeast of the dam site, and is about
0.3km from the east side of the cement factory, and is about 1.5km from the central dam
site;
(2)earth material site 2 is located about 0.7km from the southeast side of the cement
factory, and is about 1.2km from the central dam site;
(3)earth material site 3 is located about 0.5km from the north side of Tianliao
Village on the right bank, and is about 0.8km from the central dam site;
(4)earth material site 4 is located on the north of up Xinwu on the right bank, and is
about 0.5km from the west of the central dam site;
All the four earth material sites can be connected with the dam sites by the facility .
road, with convenient transportation. Earth material is composed of siltstone, shale,
carbonaceous pelite, and weathered residual soil.
The planned need for earth material is 150,000m3 . The reserves in different earth
material sites are shown in Table 2-6.
Table 2-6 the storage table in different earth material sites
Average thickness Reserves (xI 0,000m 3)Earth Material site
material site Transportation Useless Useful area Useless Useful
No. distance (kin) upper stratum (xIO,000m 2) upper stratumoverburden overburden
Earth
material site 1.5 0.2 2.08 3.75 0.75 7.80
No.1I
Earth
material site 1.2 0.2 2.76 6.80 13.60 18.77
No.2
Earth
material site 0.8 0.2 2.22 4.00 0.80 8.80
No. 3
Earth
material site 0.5 0.2 2.20 4.50 0.90 9.90
No. 4 11
sum I t 19.05 1 3.81 42.57
2.8.2 the construction site and the construction pavement
According to the need of the construction, the temporary construction pavements18
are 3.5km long, and the detailed positions are shown in Table 2-7. The routine of
these roads are shown also in Fig. 1-8. There are no resident near these roads.
Table 2-7 the characteristics of the main construction roads in the construction site
Serial LengthSerial Start stop road sections Len) remarksN o. _ _ _ _ _ _ _ _ (kin)
I Ying-Han Road on the left bank - dam 3.5 Concrete road surface, the
site width of double-lane road 8.Om
The upstream mixing station and piling 1.3 Double-lane road, width 8.0m
2 site on the main road on the left bank -
downstream approach channel
Main road on the left bank - the 0.5 Single-lane road, width 5.Om
3 first-period foundation pit on the
upstream
Main road on the left bank - the 0.5 Single-lane road, width 5.0m
4 first-period foundation pit on the
downstream
The upstream mixing station and piling 0.5 Single-lane road, width 5.Om
5 site on the right bank - the
second-period foundation pit
The main road on the left bank - down 0.8 Single-lane road, width 5.Om
6 Liangzhou - the second-period
foundation pit
Sum 7.1km, hereinto permanent road 3.65km
2.9 the scheme of the construction collocation
(1) The work area on the left bank
Because there are ship lock, main and subsidiary workshops, flood discharge gate
with 11 openings, and step-up substation, etc on the left bank, the work area on the left
bank is the main construction area of this project.
The permanent road leading to the factory is set for connecting with the outside
through Ying-Han Road crossing the work area. A main road is set beside one side of
the ship lock on the left bank, can lead to every working face of the foundation pit.
The original Yingde nitrogenous fertilizer factory is located at 500m in the
19
upstream from the dam site on the left bank, with broad and flat scene, in which the
main production and living areas can be set.
Concrete mixing station, concrete aggregate dumping site. 35kv-0.4kv pressure
relief station in the work area, water supply system. air compressor plant, wind supply
system, steel and timber process factory, cement storeroom, oil storeroom,
electromechanical equipment storeroom, mechanical dumping site, living welfare
facilities, and the headquarter of the project are set in the work area on the left. The
construction site is about 50mu.
(2) The work area on the right bank
The structures in the work area on the right bank occupy 47% of the width of the
river surface; but the construction quantity is small, so only a temporary construction
road is built for transporting away the leavings and transportinz concrete.
Only 2 X 0.4m3 mixing station and gravel aggregate dumping site are set in this
area, and steel and cement are transported to the work area on the right bank from the
left bank through the ferry.
(3) The spoil site
According to the above-mentioned condition, the gross of the complex earth-rock
excavation is 597,500m3, earth-rock backfilling is 135,400m 3: 150,000m 3 earth need be
taken from the earth site, so the gross spoil of the complex project is figured out,
612,100m3. In the report (the delivered draft for examination), the spoils are put on the
left and right bank of the complex. While according to the latest design scheme, all the
spoils are used as the filling of the foundation in the planned management area.
(4) The temporary land occupancy of the construction
Through the basic assessment, the land occupancy of the construction of this
project is about 60mu, hereinto the land 30mu, the wasteland beside the channel
15mu, the leased land 15mu. The areas of the main temporarv structures are shown in
Table 2-8.
20
Table 2-8 the characteristics of the main temporary structures
No. Item names Construction area () Land occupan RemarksNo. _ Item namesLeft bank Right bank Left bank Ri.ht bankI cement storeroom 800 300 1000 5002 dynamite storeroom 40 1003 oil storeroom 100 4004 equipment and material 4000 500
storeroom5 synthetical storeroom 150 4006 concrete mixing system 4000 1000 5000 12007 machine repair station 200 150 400 3008 steel process factory 150 8009 timber process factory 200 1500
lO metal structure 250 1000installation
11 electromechanical 500 l500e quipment installation
12 wind supply station 100 100 300 30013 water supply station 36 36 100 10014 pressure relief station 120 400 .15 concrete prefabricate site 40 30016 communication station 20 20 20 201 7 other construction factory 300 100 1000 300
1 8 parkina site of 20 20 2000 2000mechanical equipment
19 living welfare facility 10000 15000sum 16706 1720 31720 4720
2.10 reservoir submersion
The reservoir submersion of the normal storage level of the recommended top damline affects 2 towns. 8 villages, and 133 groups in Yingde City. The submerged riverbottomland is 1250.5mu. and the submerged bamboo forest is 105.2mu. and there are 1Osubmerged ports of living water and 9 pump stations. Implementation of the proposedproiect will not require displacement of current land occupants or the movement ofhouses and other buildings. The submersion condition of the proiect is shown in Table2-9.
2.11 waterway regulation in downstream
The excavation site and spurs site please see Fig.1-7. According to the local mobilebed erode test results, the building of the Xiniu hydroiunction will not lead to large beddevelopment in the lower reach from the entrance area of the ship lock's lower approachchannel. According to the real circumstance of this reach, the low water regulation
21
scheme, which integrates navigation channel dredging and sDur building . is adopted.The detail engineering measures are:
Table 2-9 the statistical table of the submerged obiects of the proiect
No. Names Unit number anc remarkscharateristic
I submerged river bottomland ha 83.372 submerged woodland ha 7.0133 Daddyfield ha 0.1274 dr land ha 1.845 country residential area ha 0.8136 waste grassland ha 1.6737 ports of living water entry 1l08 pump station en1v 29 laffected country population pelson 0
(1) Channel excavation
According to the channel excavation scheme, the excavation range is from the
entrance area of the lower approach channel to Xiniu Bridge. The excavation length is
about 1630m. The bottom elevation is enslaved to the subtract results of the relevant
section water level and the 1.2m design water depth. The form of the excavation section
is reverse trapezium, the bottom width is 30m and the side slopes connect with the
riverbed using 1:2 scale.
The dredged sediments will be used as for the base of the area of the office block
construction, so the environmental impact is very slight.
(2) Spur
Three new spurs will be built in the regulation. Spur 3# is built on the right bank of
the excavation channel in the tail of Xialiangzhou. and spur 1# and spur 2# is built on
the left bank. The existent spurs, which range from the tail of Xialiangzhou to the Xiniu
town, are called into service. The section form of the spur is trapezium, the top width is
1 .5m. the outside slope is 1: 1, the landside is 1: 1.5.
The regulation works load includes: 400m 3 groins and 25790m3 dredging load.
2.12 the assessment of project investment and economic benefit
(1) Benefit assessment
22
The benefit of the project is shown in Table 2-10.
(2) The arrangement of investment
The gross construction period of this project is three years. And the arrangement
proportion of the expense: 20% in the first year; 40% in the second year; 40% in the
third year. The investment proportion and the gross expense of the project are shown
in Table 2-1 1.
Table 2-10 the indexes of the project benefit and economic benefit
No. name unit number and remarkscharacteristic
first the index of project benefitI electricity generation benefit
perennial average electricity 10,OOOkw.h 3596,generation benefitthe hour of annual use hour 5619
2 shipping benefitthe mileage of improved watercourse Km 12.27tonnage of passing ship ton 100-150
second the index of economic benefit1 the gross investment of the project I O,OOOYuan 26707.80
(static state)2 the gross investment of the project IO,OOOYuan 27596.36
(dynamic state)3 economic inner yield % 116.38
Table 2-11 the investment proportion and the gross expense of the project
construction
gross first year second year third year
investment exes\
investment proportion% 100 20 40 40
26707.80 2707.80 54315.6 108631.2 108631.2
3. Environmental protection measure
According to the nature of the project and the analysis of environmental impacts, the
complex will mainly have favorable impacts on the surrounding environment. However,
unavoidably, it will cause certain adverse impacts on the environment during its
construction and operation phases. These adverse impacts could be avoided or remedied23
by taking remedial or technical measures, thus bringing the complex into full play to
create economic, social and environmental benefits and minimize the adverse impacts.
3.1 Environmental Protection Measures for the Complex
3.1.1 Pre-Construction phase
3.1.1.1 Flood prevention in the reservoir area
a) The location of the dam, the type of the dam structure, the format of flood
discharge, the width of overflow edge and the normal headpond level have been
selected and designed so as minimize loss of lands within the headpond zone due to
inundation and to regulate floods.
a) Through the detail comparison of three schemes, the mild dam site scheme has been
selected. A low and open gate dam has been used, and the normal water level in the
reservoir hes been designed to 29m.
c)
3.1.1.2 Embankment protection
During the design phase, geological survey have been done for the embankment
protection in order to confirm the locations of embankment with potential hazard of
permeation. At the same time, measures like laying stones, building slopes and growing
grass are going to be taking to harden some soft and cragged banks.
3.1.1.3 Water discharge facilities
In the design, the inundated water pump stations will be renovated and improved before
water is filled into the reservoir.
3.1.1.4 Field protection
Before water is filled into the reservoir, flood discharge channels will be built or
renovated, new electrical pumping station built and various plans improved. The
follow-up supportive work will be seen to.
24
3.1.1.5 Ecological protection
Efforts will be strengthened in afforestation in the reservoir area to increase the area of
vegetation coverage and prevent the loss of water and soil and promote ecological
agriculture.
3.1.1.6 Preservation of cultural relics
In the phase of designing, the department of relic preservation have taken an
investigation in the would-be inundated area. The investigation results indicated that
there are no cultural relics in the project area.
3.1.1.7 Protection of the species of fish
Main objective is fishery resources in Lianjiang River. To mitigate further loss of fish
habitat in the Lianjiang, a fish channel/ladder has been included in the design.
3.1.1.8 Noise and Dust
Main objective for noise and dust is residential area including the residential along the
river and the traffic road. The chief measures are to choice the right transportation line
and set a protection area of sanitation in order to reduce the impact on environment,
especially on residential.
3.1.2 Construction phase
3.1.2.1 Water quality protection measures
a) Construction water holding ponds on each bank in order to treat the wastewater from
the foundation pits; these wastewater can be treated using flocculation and
sedimentation in order to meet the class I of discharge standard(DB44/26-2001). The
construction site water with a high content of SS and organic matter must be treated
using biological decomposition, sedimentation and sterilization in order to meet the
class 1 of discharge standard(DB44/26-2001).
b) The construction base includes the dam sites and dredging sites should be enclosed
by silt control curtain.
c) The oil wastewater from construction ship must be treated by separators of oil and
25
water; the concentration of pollutants in tail water must lower the discharge standards.
And the treated water should be disposed at a deep-water area. Rubbish in the
construction ship is forbidden to be thrown into the river, but to be disposed on bank
with daily rubbish.
d) The construction base includes the residential area for workers, the area for concrete
prefabricating and stacking etc. Sewage mainly comes from the daily living water for
workers, water used to wash the construction base, oil and water from machines repairs,
and water used for disposal of solid rubbish. The following is a protective measures foi
reducing the impact from above:
* the main pollutant is SS in the wastewater from washing machine and concrete
mixer. This kind of wastewater must be filtered back to the river after the standard
sewage disposal. According to the amount of the wastewater, 2 construction site
water settling ponds are supposed to be built. Construction site or materials
processing will be drained to the depositing pools by flowing past the grid. After
flocculation and sedimentation, the SS is been set, the water will meet the standard
for filtering back. Draining the wastewater directly to Lianjiang River is forbidden
The deposit of the water, which is mud and sand, can be stacked together with
waste sediments. Further more, water from the settling ponds ought to be reused
in order to reduce the final amount of the water.
* Construction site wastewater will be about 450t/d during the peak construction
phase. This sewage is going to be dealt with by the new building wastewater
treatment plant using biological decomposition, sedimentation and sterilization,
and treated wastewater can meet the class I of discharge standard of
DB44/26-2001.
e) Monitoring the water quality in the river. Once the water quality exceeds the standard,
which may impact the operation of the water factory, the construction unit ought to
adjust the working time. The procedure are:
The monitoring tasks can be assigned to the provincial or municipal environmental
monitoring centers. The SS and turbidity will be monitored daily, other items such as
26
pH, ammonia and nitrogen, phosphorus, petroleum, hexavalent chrome, nickel,
cadmium, arsenic and mercury will be monitored 1 time per month. The monitoring
points will have 2 points: one about I OOm downstream from dam, the other at the Xiniu
water intake section of river.
The monitoring data will be report to field office of the Xiniu Project. If the monitoring
results indicate that the water quality exceeds the standard(class 3 of GB3838-2002), the
field office must notice the information to the contractors of project and to Xiniu water
factorv.
3.1.2.2 Fishery resource protection measures
a) All the construction workers should be informed that it is forbidden to throw garbage
into the river.
b) All the construction workers should be instructed that it is forbidden to fish and catch
wild animals, which are protected by the government, and they should be taught to
respect the local aquatic animals and plants.
c) To raise fish by artificial propagation, with the fish living mainly in Lianjiang river
being raised in this method. The GDWB will have agreement with the
GDFB(Guangdong Province Fishery Bureau) to execute the raising fish plan.
d) To build a fish channelUladder.
f) The dredging will not be arranged in the fish migration seasons during April - July
every year.
3.1.2.3 Prevention measure for noise control
a) Noise in mainly produced by construction machinery
It mainly has an effect on the constructors. Work schedule should be properly arranged
for the constructors during construction. The high noise machineries should be stopped
from 10 pm to 6 am. . Besides, living quarters for constructors must be far away from
high noise work-site, the distance as for sanitary protection distance is about 300 m.
possible.
b) Construction machinery must be selected according GBZI-2002 in order to reduce noise
pollution. Preventive maintenance should be often made for the construction machinery
27
during construction so as to avoid the noise increase due to equipment performance
drop. Noise insulation and elimination measures should be taken for the generators.
Besides, the generators must be far away from dense-population zone.
c) For some construction machinery whose noise level is above 9OdB(A), for example,
pilling machine, pneumatic hammer and rock drill etc, work schedule should be
properly arranged, besides, night construction should be reduced from 10 nm to 6 am.
3.1.2.4 The prevention measures for land erosion
3.1.2.4.1 The engineering measures
(1) The construction and remove of the cofferdam
After the upstream and vertical cofferdam project, the ratio of slope 1: 2 is adopted
in the main project, with the prevention layer of 40cm; the ratio of upstream slope is 1:
2, and the ratio of downstream slope 1: 1.5, with the prevention layer of 20 cm, and all
these increase the washing resistance of the project.
The excavation of the foundation pit is executed in the cofferdam. The waste
material will be piled up. Some measures will be adopted to protect the slope along the
banks on the same side of the upstream and downstream approach channels of the gate,
and the bottom of approach channels within 60m from the head-bay. The temporary
measure of soil and water conservation is that the temporary drainage system is built on
the outer side of the excavation area (revetment project) and on the temporary
construction roads to draw away the upstream inflow, with the drainage ditch 800m, and
with the excavation earthwork 400m3 ; and the temporary earth bags of preventing
washing and falling are 120m3. In addition, the waste material can cause soil and water
loss easily in the process of the temporary accumulation, and be prevented by the
temporary earth bags (about 360 mi3 ). Other temporary measures also include covering
exposed soil slopes with hay, coconut mats or other temporarv veaetation to reduce
amount of slope exposed to rains and erosion.
The quantity of soil and water conservation in the construction area of the main
project is shown in Table 2-1.
28
Table 2-1 Quantity of soil and water conservation in the construction area
No. Item Unit Amount RemarksI Excavated earth m3 400 Length 800m
of drainage ditch2 Temporary filling m3 480
earth bags I
(2) The engineering measure of soil and water conservation in the
construction area of the temporary project
The measure should be focused on preventing the washing of the outer inflow on
the construction site in order to reduce the earth excavation. Earth bags are adopted in
the temporary construction areas. After the completion of the project, this area will
become the management area of the complex project, and should be designed
according to the afforestation standard of the garden.
(3) The engineering measure of soil and water conservation of the road
A permanent road is built newly in the project, with the length of 3.5km, and the
temporary engineering measure in the construction period and the protection of the side
slope of the roadbed after the completion the project should be considered in soil and
water conservation. In the construction period, the drainage ditch is excavated on the
both sides of the hillside slope. The permanent drainage ditch will be built on the basis
of the temporary drainage ditch after the completion of the project.
In the construction period, the main task of soil and water conservation and
protection of the temporary road is to reduce the washing of the outer runoff on the road
surface, and preventing the outward discharge of the sediment. The sediment control
measure must be excavated on the slope base of the roadbed, and in details, the earth
bags are accumulated at I m on the outer side of the slope base of the roadbed. The
vegetation recovery measure is executed after the completion of the project.
(4) The measure of soil and water conservation in quarry site
The quarry is located at the mountainous region; the measure should be adopted for
the safety of used land and the improvement after the completion of the project. The
original landform, relief, soil in the quarry had been disturbed wholly, and because of
29
the great random exploitation and the difficult determination of the excavation side
slope, the slope of the quarry site changes constantly with the constant excavation; so
soil and water conservation in the borrow area should be focused on upstream
detainment, downstream cutoff, and spoil interception.
After the completion of the project, the permanent treatment should be executed in
order to prevent the land erosion. The stage leveling is executed according to the
cascade excavation, and the quick-growing plantation of soil and water conservation are
planted, and the vine is planted on the slope base; the whole area of quarry should be
afforested.
Regarding and vegetating the quarry site belong to one of the getting earth project,
the expense should be estimated in the getting earth project budget, so the contractors of
this project must responsible for that.
3.1.2.4.2 The biologic protection measures of soil and water loss
(1) The sod measures on the slope
Sod on the slope of the roadbed should be executed. According to the local condition,
bermude, lawngrass, and axonopus compressus can be planted on the soil slope.
(2) The recultivation and afforestation measures
After the completion of the project, is about 4.Oha, the recultivation and
afforestation measures should be adopted in the temporary construction area to prevent
the perennial rainfall erosion on the earth surface.
3.1.2.5 Other measures
(1) Dust control
a) The constructing machinery should be selected according GBZI-2002 in order to reduce the
atmosphere pollution from the source.
b) Concrete mixing building and cement stack yard should be located on the leeward of
the construction site. Besides, there must be no residential area in the neighborhood
within 300m.
30
c) Construction machinery must slow up over the roads, where dust can raise easily.
d) Pavement for construction ought to be cleaned and maintained, plus the face of the
pavement should be watered to reduce the dust caused by traffic. The water spray
frequency is about 2 to 3 times per day.
(2) Solid waste disposal
a) Domestic garbage in construction sites should be jointly collected and transported to
garbage processing station at Xiui Town daily.
b) Construction waste soil and stones from the dam sites and dredging sites all should
be transported to the area of building management department.
(3) Temporary land use should occupy the shoal land as far as possible, in order to
reduce the impacts on local agriculture and farmer's income. Offer rational
compensation to the land user.
a) The water level will rise when the reservoir is at its time of storing water. Due to this,
the measures for protecting the environment around reservoir area should be initiated at
the same time as the building of the reservoir. One way is to shore up the unstable
riverbank before the reservoir starts its storage, in order to avoid the phenomenon of
water and soil erosion in the future.
b) Riverbank collapse always occurs after the reservoir stores water, which may destroy
the banks. In order to avoid the collapse, and to keep the bank safe, a particular
reconnaissance needs to be carried out for checking out all the points, which have the
potential for collapse, and steps for strengthening the unstable points should be carried
out.
c) After the projects' completion, the area used for getting earth for constructing should
be completely repaired. The area should be leveled off, cultivated, covered with more
soil, and then re-planted with vegetation. The aera is about 6.8ha.
31
(4) Before constructing of the project, widely publish and announce timing of the
project to avoid shipping traffic congestion and interference with shipping .
a) Investigating the amount of the traffic, the temporary navigation scheme for the
construction phase should be well done during project design, navigation management
should be strengthened and navigational aids/markers should be perfected.
b) Optimizing the route for construction vehicles, and avoid constructing material
deliveries around the rush traffic hours.
c) Request the construction vehicle drivers to obey the traffic rules, thus ensuring the
safety of all those driving.
(5) Take care of hygiene of construction workers at building site, to prevent the
infectious disease and epidemic disease.
(6) Cultural relics protection
According to the preliminary survey on the cultural relics within the scope of Xiniu dam
project, the experts did not find important ancient relics that should be excavated at the
construction area of the Xiniu dam project; those projects can be carried on without
taking ulterior archaeological steps. However, if any cultural relics are found during
construction, excavation will be stopped immediately and the local cultural authority
will be informed of such discovery. Excavation will not be resumed until identification
of cultural relics by the authorized institution is completed and necessary preservation
measures are taken.
(7) Reconstruction of drainage gate at reservoir area
Few drainage gates, with relatively low elevation of their bottom slabs, will be under
water due to rising of reservoir's water level and their drainage function has been
impacted. With this consideration, corresponding facilities shall be reconstructed and
matched before the water reservation.
(8) Bank protection
According to the data of the geologic investigation and the drilling, the region from Qili
Gorge to Xiniu Bridge is the broad alluvium plain, and the bottom of the riverbed is the round
32
gravel layer with sands. The two banks of the river valley are composed of silty clay, silt, and
silty fine sand. The height difference of the slope of the river valley is commonly above 9m,
and the stability of the side slope is bad, all the silty clay, silt and sand soil will collapse after
being washed and saturated by the water, and the conditions of silt and sand soil are
especially serious. The main reason why the modem valley slope is relatively stable is mainly
the protection role of the vegetations of bamboo forest, etc.
In order to prevent the washing of flood on the bank slopes of upstream and downstream in
the complex area, and to prevent the cutting of the permneable stratum on both banks, the
revetment structures must be set on the both banks of the complex area to assure the stability
of the bank of the reservoir.
3.1.3 Operation phase
3.1.3.1 Water quality protection measures
a) The sewage water must be treated using biological decomposition, sedimentation and
sterilization procedure; the treated water must meet the class 1 of discharge
standard( DB44/26-2001).
b) Setup the leaking oil trays and accidental oil trays in the workshop so as to collect the
water and oil. The collected wastewater must treat by separator of oil and water, then
the water will be drained, and the oil will be recycled. Waste oil and water created by
examination and repair will enter the oil tray, and will be treated as same way.
c) The pollutants from ship including oil waste water; sewage and rubbish must be
collected first, and then sent it to bank for treatment.
d) Monitoring the water quality of Xiniu Town waterworks. The monitoring tasks
can be assigned to the provincial or municipal environmental monitoring centers(as a
contractor).
3.1.3.2 Erosion and bank slumping protection
a) Geological survey is required for the embankment protection in order to confirm the
locations of embankment with potential hazard of permeation, which shall be treated.
b) The unsteady banks of upstream must be renovated and improved before water is
33
filled into the reservoir, to avoid the water and soil erosion at the bank.
3.1.3.3 Fishery resource
a) The project management department will be in charge of the administration of fishery
resources in the reservoir. Funds will be invested to increase the fisheries resources.
How many fund is enough, what is the relationship with local fishery authority, that
needs convention by GDWB and GDFB.
b) Put the main local fish into reservoir to breed so as to increase the fishery resources.
3.1.3.4 preventing accident
According to the analysis report, the risk of this kind is very low, measures for
preventing the environment from being polluted by a delivery accident ought to be
prepared to guarantee the safety of water quality.
a) All goods, which may pollute the environment, should be packed properly when
being delivered by vessel, therefore, even if there is an accident and the package falls
into the river, the goods will not be dispersed into the river.
b) According to regulations, if there is a delivery accident and goods that may pollute
the water fall into the river, the situation must be reported to the waterway department
immediately.
c) The waterway department should be equipped with boats and relevant tools such as
oil separators, oil removal devices and salvage facilities. When there is accident,
measures for meeting the crisis must be adopted in time.
d) A system of cooperating with the waterworks in Xiniu Town should be especially
implemented. The waterworks is suppose to adopt necessary measures to prevent water
from being polluted, and in the event of possible leakage and pollution of the water
supply, they must be stop getting water from river at that crisis time.
3.2 Environment Protection Measures for Waterway dredging project
3.2.1 Design phase
a) proper silt disposal and stockpiling sites on shore shall be well selected for dredging
project;
34
b) structures re-building shall be well arranged to avoid bank flushing.
3.2.2 Construction phase
a) In order to guarantee the safety of water quality of Xiniu Town waterworks,
construction and wastewater discharge must be prohibited within the designated
sanitary zone (it is about 1 km up to the site of pump station).
b) Following from the design plan, the dredged sediments will be used for foundation
land fill.
c) Measures should be taken to prevent oil leakage during work or maintenance of
ships.
d) Environmental health management should be strengthen for the construction site.
Rubbish, sewage and dung must be centrally collected, transported and treated. It is
prohibited to discharge them into river.
e) The dredge site must be enclosed by silt control curtain during construction of this
project. Water quality monitoring must be well done for regional drinking water
source( the monitoring plan shown in table 3-5, please). If you find water is polluted by
this project, effective measures must be taken immediately. Following is the procedure:
The contractor such as municipal environmental monitoring centers take tasks. The
monitoring data will be report to field office of the Xiniu Project. If the monitoring
results indicate that the water quality exceeds the standard (class 3 of GB3838-2002),
the field office must notice the information to the contractors of project and to Xiniu
water factory. And the contractors of construction ought to adiust the working time.
3.2.3 Operation phase
a) No oily wastewater, living sewage or garbage from the ships will be allowed to
discharged or dumped into the river, all of which shall be processed on shore;
b) Ships with excessive operation noise will be kept off the navigation waterway;
c) National regulations governing dangerous substances transportation shall be strictly
followed and contingency measures shall be well prepared to minimize any possible
leakage and the impacts on environment.
35
4. Environmental monitoring plan
Environmental monitoring is designed to timely evaluate the impact of this project on
the environment and the effectiveness of environmental protection measure.
4.1 Monitor items and assessment standard
Water quality, noise are the environmental protection goal of the long period. The
monitoring items and assessment standard must entirely obey the national standard.
Some of the national standard is shown in table3-1-table3-4.
Table3-1 Environmental Quality Standard for Surface Water (GB3838-2002)
Items Class I 1 III IV V
PH (infinitude outline) 6-9
Oxygen ) Saturation rate 6 5 3 290% (or 7.5)
Permanganate salt index < 2 4 6 10 15
COD 15 15 20 30 40
BOD, 3 3 4 6 10
NH3-N 0.15 0.5 1.0 1.5 2.0
T-P (based on P) < 0.02 0.1 0.2 0.3 0.4
T-N (for lake and water conservancy 0.2 0.5 1.0 1.5 2.0based on N)
Cu 0.01 1.0 1.0 1.0 1.0
Zn 0.05 1.0 1.0 2.0 2.0
As 0.05 0.05 0.05 0.1 0.1
Hg 0.00005 0.00005 0.0001 0.001 0.001
Cd 0.001 0.005 0.005 0.005 0.01
Cr6 0.01 0.05 0.05 0.05 0.1
Pb 0.01 0.05 0.05 0.05 0.1
C`N- <0.005 0.05 0.2 0.2 0.2
Volatilization hydroxybenzene S 0.002 0.002 0.005 0.01 0.1
Petroleum S 0.05 0.05 0.05 0.5 1.0
Active agent on surface of anion-< 0.2 0.2 0.2 0.3 0.3
Sulfide S 0.05 0.1 0.2 0.5 1.0
Coliform group in dung(pc/L) s< 200 2000 10000 20000 40000
36
Table3-2 Discharge standard of pollutants from ships" (GB3552-83)
Item Inland waterway
Oil (mg/L) 15
BODs (mg/L) <50
SS (mg/L) A 150
Colifonn group in dung (pc/L) %250
Plastic products No allow to throw it into river
Floating thing No allow to throw it into river
Table3-3 Standard of environment noise of port and river bank area (GB11339-89)
Type Daytime (dB) Nighttime (dB)
1 60 50
2 70 55
Table3-4 Standard of environment noise of urban area (GB3096-93) unit:dB (A)
Type Daytime Nighttime
0 50 40
1 55 45
2 60 50
3 65 55
4 70 60
The following standards can be used:
Water quality standard for fisheries
Integrated waste water discharge standard
* Pollutants control standard for sludge used in farmland (GB4284-84).
4.2 Environmental monitoring in construction phase
According to the aim and task of environment monitor, the environment-monitoring
plan in construction phase is arranged in Table3-5. The locations are shown in Fig. 3-1.
37
Table3-5 the environment-monitoring plan of Complex in construction phase
Monitoring Monitoring index Monitoring Frequencylocations method
Air quality Shangxiwu, Jiezai, TSP, PM1o 2 days, 4 times a .4 times a monthTianliaocun, Angba day
Acoustic Shangxiwu, Jiezai, Leq(A) 2 days, 4 times a 4 times a monthenvironment Tianliaocun, Angba dayWater quality 100m from the pH, SS, turbidity, SS, turbidity daily; 2 times a month
dam and Xiniu ammonia and Others I day forwater intake nitrogen, one timesection phosphorus,
petroleum,hexavalentchrome, nickel,cadmium, arsenic
,____ ____ ____ _________and m ercury.Sediments Dam/dredging site cadmium I time a day Onec in 2 months
and stacking areaEcological Quarry, temporally Erosion of land, I time a day 2 times per yearenvironment used lands cover rate of
vegetation
4.3 Environmental monitoring in operation phase
The influencing factor of the project on environmnent will be changed after the Complex
is finished, shipping noise and shipping pollutants will become one of the mains factors
of environmental impact. At that time, the water quality monitoring and noise
monitoring need to keep up. Project office should communicate with local
Environmental Monitor Station, understand variation of the waterway environment.
Environmental monitor should be authorized to local environmental monitor station.
The environmental monitoring in operation phase is shown in table3-6.
Table 3-6 Environmental monitoring in operation phase
Object Monitoring location Monitoring Index Monitoring method Frequency
Water 500m above the intake pH, SS, petroleum 2 days each times I times/month
quality of Xiniu Water Work
Acoustic Shangxinwu, jiezai, Leq 2 days each times, 4 times / year
environmen Tianliaocun, zhangwu,
t anba.
Ecological Quarry, temporally Erosion of land, cover I time a day 2 times per
environme used lands rate of vegetation year
38
nt I I I l
4.4 Environmental monitoring report
A system for reporting of the monitoring result should be established. The flow chart
(Fig. 4.1) shows the procedure of reporting of monitoring results.
Local environmental or P a E
|monitoring center |or
|World Bank GDEPB
Figure 4-1 Reporting procedure of monitoring results
The project enforcement office should give a monthly report of the monitoring results in
the construction period to Guangdong Provincial Waterway Bureau, the local Qingyuan
and Shaoguan Environmental Protection Bureau. Each quarter of the year, GDWB
should send a quarter report of monitoring results to Guangdong Environmental
Protection Bureau and also World Bank, because annual reports are too late for the
Bank to make any suggestion if necessary. Each year, the GDWB should send an annual
report of monitoring results to Guangdong Environmental Protection Bureau and World
Bank.
Further more, the results of environmental monitoring conducted by an external local
monitoring center should be also reported to the Bank in the quarterly project reports.
5. Environmental management plan
5.1 the organization, responsibility and implemented system for
environment administration
In order to improve the supervise and administration of protecting the project
39
environment, a property organization for environmental administration should be
ascertained, and an administration system for protecting the environment should be
found, which will execute the administration of protecting the environment for this
project and guaranteeing the desired effect to all the environmentally protected targets.
5.1.1 Organization Framework
The administration system for protecting the proiect environment should adopt the
system of "Leaders entirely responsible for the all duties, and divide the workload to
subordinate. Each of the subordinates in charge of classified duties and responsibilities
should be properly ranked for that position. According to the reguired features of this
proiect, a general director's department and full time environmental protection
department should be established. (There ought to be full time staff whose responsibility
is environmental protection in every construction location). The head of the full time
environmental protection department should take charge of all environmental protection
proiects, make target projections for all the subordinates, invoke a relevant reward and
punishment system, guarantee measures for protection of the environment to be carried
out and bring forth the expected benefit. Following is the framework of the organization
suggested.(fig. 5-1 and fig. 5-2.)
Proiect Enforcement Office of GDWB Make an suBestion
(6_person, full time) i WoQuarterly rePOrt
Report once one month
Field office for the Xiniu Project
(2 erson. f,ultime )
T Report once one month
Construction Contractors
( 1-3 units) I
Fieure 5-1 Structure of environment protection administration organization on construction phase
40
Project Management Company WMake anB [(6 _erson, fiJII time) | >
-s ~Ouarterly report
s , Report once one month
| Field office for the Xiniu Proiect |
| (2 person. fulltime )l
Report once one month
Construction Contractors
(1-2 units)
Figure 52 Structure of environment Protection administration oreanization on oDerational phase
5.1.2 Responsibilities
A. Director
(1) Project Enforcement Office of GDWB
The general manager are expected to understand the overall dynamics of environment
protection of this project. and to be responsible for the overall environment protection and approvinz
environment protection system, post system and implementation plan. They should also coordinate
the relation between relevant departments and organizations and guarantee the personnel, money and
materials necessary for environment protection. At the same time, the main task is to organize daily
monitoring on the water quality: air, noise and solid wastes of the project based on the monitoring
plan. The results of environmental supervision and monitoring should be integrated into the
quarterly implementation reports to the Bank by the PEO.
(2) Field offices for the Xiniu Proiect
It shall be familiar with the project implementation plan, the pollution prevention technology
and policies, and the constitution of the technicians. Its main responsibilities are: a) to formulate
project environment protection rules and regulations and supervise the implementation of the
regulations: b) to formulate and implement environment protection plan: c)to organize ecological
and environmental monitoring: d) to propose the administration plan and improvement suggestions
for operation of the environment facilities of this project.
41
This department shall timely report to the project headquarters about the work of environment
protection and shall cooperate with different levels of competent environment authorities in
supervision and inspection of environment protection.
Circuit supervision and inspection system should be established, with the following
main responsibilities: to conduct regular supervision on the construction and operation
of the environment protection measures of this project, collect the problems of
environment protection and propose suggestions for solving the problems.
(3) The construction contractors
Usually each contractor undertakes each mitigation measure at the construction stage.
The construction contractors should attach the implementation requirements of
mitigation measures of environment protection and the requirements of supervision and
staff training to their bidding documents.
5.1.4 Contract documents
Good bidding documents and good contract documents are crucial to ensure the
implementation of mitigation measures. According to the regulations of Environment
Protection Administration Regulations for Construction Projects, Administration
Regulations of Checking and Accepting of Environment Protection Facility completion
for Construction Projects, and Environment Protection Action Program for Project, the
construction unit (GDWB) should list the content, requirements and targets of the
project action program in the clauses of the construction contract when it is signed. In
that way, the mitigation measures can be effectively implemented, and the progress, the
effect, and the problem in implementation can be reported to the GDWB in time. The
GDWB should also regularly entrust the local Environmental Monitoring station or GDEMS
to have on-spot monitoring during construction and to transfer the reports to GDWB, EPB
and the World Bank, so as to ensure the successful implementation of the mitigation
measures.
5.2 Environmental training
All the staff including construction workers shall receive at least one time of42
environmental protection training, while the major environmental protection staff shall
receive position training.
5.2.1 Environmental protection knowledge and ability training
During the construction phase, the Employer and the constructor shall invite
environmental protection experts to carry out an overall environmental protection
conception training for all construction workers and supervisors, clarifying the major
environmental protection problems and necessary measures during construction phase.
During the operation phase, Lianjiang Xiniu Navigation Junction Complex shall
regularly organize environmental protection knowledge training for all staff in order to
clarify the possible problems that may occur within their assigned areas, stress the
negative consequence that may result from failing to take necessary environmental
protection measures and implant the environmental protection idea to the mind of every
one of the staff.
5.2.2 Environmental protection ability training
The key staff such as installation and maintenance personnel, drivers, office members,
environmental protection supervisors, etc., should receive environmental protection
ability training.
Training time should be 1-3 months. Three stages include:
(1) Knowledge of environmental protection training: experts of environmental
protection and administrators from Environmental Protection Bureaus are invited to
give lectures. Or some visual materials are good, like VCD or tapes. Let them
understand importance of environmental protection in social economical development
and sustainable development. It needs about 4 weeks.
(2) Practice in site: Find a typical waterway regulatory engineering completed,
and visit the engineering. Learn experiences of environmental management from the
engineering. Let them discuss problems appeared in the engineering and the methods
solved problems. The results could be considered as management principles under
consultation of local EPB. This training needs about 4 weeks.
(3) Training abroad: Choose a few administrators and send them to study abroad.
43
There are some similar project of complex construction and waterway regulation abroad
where advanced environmental management experience have gotten, especially
engineering loaned by World Bank; By analyzing conditions of the waterway to be
constructed, make a program of environmental management. This training needs about
5-6 weeks.
5.2.3 Training fees
The training budget is about 100 O,OOUSD.
6. Time schedule for enforcement of environmental action
plan
Enforcement of environmental action plan shall run through the whole process of
construction and operation of this project. Protection engineering for reservoir area shall
be completed before the reservoir stores water. Wastewater treatment for the
construction period shall be dome at the beginning stage of construction. Environmental
protection facilities shall be put into operation together with the project. Besides,
environmental monitoring work shall run through the whole construction period and the
first five years of operating phase of this project so as to check the effectiveness of
environmental protection facilities.
44
Table6- 1 Time schedule for enforcement of environmental protection scheme
Item Year Year Year Year Year After2001 2002 2003 2004 2005 2006
1. Design stage -
2. Productive wastewatertreatment in the constructionsite
3. Sewage treatment in theconstruction site
4. Noise and dust controlduring construction
5. Environmental monitoringin the construction phase -
6. Environmental monitoringin the operating phase
7. Wastewater treatment inthe operating phase
8. Training
9. Vegetation recovery in theconstruction site
10. Afforestation -
45
Appendix I Summary of environmental protection measures
Table Summary of mitigation measures and the expense
Categorization Mitigation measures scope and content remarks
Construction phase
Water pollution 1. construct the dam body: Supervised and checked
by PEO, MEPB'S and
Silt control curtains during the cofferdam built and removed. GDEPB.
a silt settling pond to treat the wastewater using flocculation and sedimentation. The concentration of Maior aprotection.
SS in the treated water should be lower than 60mg/L.
Monitor the SS concentration in downstream, especially in the Xiniu water intake.
The cubits of earth and stone should be delivered to the designated place.
2. ship wastewater treatment during construction.
(1) Protection measures for controlling the sewage given off from ship
Wastewater must be disposed of by appropriate equipment, which is specifically for separating water
and oil, and should be disposed of at a deep-water area after the standard disposal process.
(2) Protective measures for controlling the rubbish given off from ship
It is forbidden for rubbish in ship to be thrown into the river, but can be disposed of with living rubbish
46
on banks.
3. Protective measures for preventing the pollution from construction site
(1) The main pollutant is SS in the wastewater from washing machine and concrete mixer. According to the amount of
the wastewater, 2 silt settling ponds are supposed to be built. Wastewater will be drained to the silt settling ponds by
flowing past the grid. After flocculating deposits, the SS is removed, the water will meet the standard for filtering
back. Draining the wastewater directly to Lianjiang River is forbidden. The deposit of the water can be stacked
together with waste sediments. Further more, water from the treatment is suggested to be reused.
(2) The sewage water(about 450t/d) is going to be treated using the biological decomposition, sedimentation and
sterilization, and will meet the discharge standards of DB44/27-2001.
(3) The wastewater with oil will be treated using the special equipment such as oil separator at the repairing plants
located in the construction area of the work place, in order to meet the discharge standards of DB44/27-200 1.
4. Rubbish in the construction ship should be disposed on bank wit,h daily rubbish.
5. Monitoring the water quality in the river. Once the water quality become not to meet the class 3 of GB3838-2002 standard, which mayimpact the operation of the water factory, the construction unit ought to adjust the working time
Noise pollution Supervised and checked1. These workers ought to be supplied with proper noise and dust protecting equipment, which can prevent them from by PEO, MEPB'S and
GDEPB.getting disease.
Mainly for temporary47
protection.2. The constructing machinery should be seleted according GBZI-2002 in order to reduce noise pollution. Insulation
and elimination measures should be taken for the generators.
3. The 3.5km long road used for construction should be cleaned and maintained regularly.
4. A distance of 300m from the noise should be maintained as a protection area of sanitation. Assuring that no more
living sites will be established inside the sanitation protecting area.
5. Plus to stop the impact of the sound and dust pollution, a green belt should be created to encircle the construction
field. The present blueprint, in which the living area is a 500m distance from the construction field, will meet the
standard.
6. Some of the construction equipment such as the concrete mixers will make a lot of unavoidable
noise. The first thing to do is to arrange the construction times properly. Such as trying to avoid thehigh noise procedures around the regular resting times. Secondly, if work procedures must be doneduring the residents' resting time, residents should be notified of such procedures in advance. Thirdly, afixed period of time(for example, 10 pm to 6 am) should be set for the stopping of operations.
Air pollution 1. The constructing machinery should be seleted according GBZ 1-2002 in order to reduce the atmosphere Supervised and checked
pollution from the source. by PEO, MEPB'S and
2. Concrete mixing building and cement stack yard should be located on the leeward of the construction site. Besides, there must be no GDEPB.
-residential area in the neighborhood within 300m. Meanwhile, keep those easy dust-making material in warehouse Mainly for temporary
. or well-covered. protection.
3. Construction machinery must slow up over the roads, where dust can raise easily.
48
4. Pavement for construction ought to be cleaned and maintained, plus the face of the pavement should be watered for 2 to 3 times in
sunny day to reduce the dust caused by traffic.
5. Trucks loaded with soil, stone, sand and cement shall be covered with canvas, their speed shall be
limited while entering the site, reducing unloading fall gap, avoiding cargo falling due to gale or bumpy
roads.
6. Operation and management departments shall pay attentions to weather forecast, take precautions to
sprinkle in dry weather, cover material to avoid making dust in gales.
7. Construction department shall coordinate local environmental surveillance statiorns, especially on the
supervision of TSP value, so as to obtain the actual data of TSP value and control TSP pollution, to
insure the TSP value in ambient atmosphere where it is about 300m from the main construction site can
meet the class 2 of GB 3095-1996.
Ecological 1. All the construction workers should be informed that it is forbidden to throw solid waste into the river. Needs to be checked and
environment 2. All the construction workers should be instructed that it is forbidden to fish and catch wild animals, and they should be taught to respect apprpved by the water
the local aquatic animals and plants. protection department,
3. To raise fish by artificial propagation. This measure can be done by local fishery management department, but contractors need play the fishery department, PEO,MEPB'S and GDEPB.
costs.
4. Constructing the fish channel.
5. Temporary land use should occupy the shoal land in order to reduce the impacts on local agriculture and farmer's income. Offer
rational compensation to the land user.
6. In order to avoid the collapse, and to keep the bank safe, a particular reconnaissance needs to be carried out for checking out all the
points, and strengthen the unstable points.
7. After the projects' completion. the area used for getting earth for constructing should be completely repaired. The area should be
leveled off, cultivated, covered with more soil, and then re-planted with vegetation.
49
8. Use the earth bags to prevent the land erosion in the solid waste place during the construction and remove of the cofferdam. The solid
waste such as sediment and stone must be used as for the fundamenital materials.
9. The engineering measure of soil and water conservation of the road.
10. The measure of soil and water conservation in quarry site. This measure can be done like in getting earth area.
I1. Sod on the side slope of the roadbed should be executed. According to the local condition, bermude, lawngrass, and axonopus
compressus can be planted on the soil side slope.
12. After the completion of the project, the recultivation and afforestation measures should be adopted in the temporary construction area
to prevent the perennial rainfall erosion on the earth surface.
The mitigation measures on above should be initiated at the same time as the building of the reservoir.
Solid waste 1. Domestic garbage in construction sites should be jointly collected and transported to garbage processing station at Xiui Town. Trash Supervised by PEO,
disposal cans need to be set in the construction area to collect the rubbish, and centralize the rubbish, cooperate MEPB'S and GDEPB
with sanitation department, and let them clean and remove rubbish regularly to garbage processing station at
Xiui Town.
2. Construction waste soil and stones should be transported to the area of building management department.
Safety 1. Before constructing of the project, send out notice to society in order to avoid the influence of the water traffic order. Supervised by PEO,
2. Investigating the amount of the traffic, optimizing the route for construction vehicles, and avoid constructing material deliveries around MEPB'S and GDEPB
the rush traffic hours.
3. Request the construction vehicle drivers to obey the traffic rules, thus ensuring the safety of all those driving.
4. Take care of hygiene of construction workers at building site, to prevent the infectious disease and epidemic disease.
Others Measures of environmental inspection and administration Supervised by PEO,
MEPB'S and GDEPB
Operation phase
Water pollution. 1. The sewage water must be treated using biochemical procedure(include biological decomposition, sedimentation, and sterilization); the Supervised and checked
treated water must meet the standard of DB44/26-200 1. by PEO, MEPB'S and
50
2. Setup the leaking oil trays and accidental oil trays in the workshop so as to collect the water and oil. The collected wastewater must GDEPB
treated by separator of oil and water, then the water will be drained, and the oil will be recycled. Waste oil and water created by
examination and repair will enter the oil tray, and will be treated as same way.
3. The pollutants from ship including oil waste water; sewage and rubbish must be collected first, and then sent it to bank for treatment.
4. Monitoring the water quality of Xinui Town waterworks.
Ecological 1. Geological survey is required for the embankment protection in order to confirm the locations of embankment with potential hazard of Supervised by PEO,
environment permeation, which shall be treated. MEPB'S and GDEPB,
2. The project management department will be in charge of the administration of fishery resources in the reservoir. Funds will be invested also water protection
to increase the fisheries resources. department.
3. Put the main local fish species into reservoir to breed so as to increase the fishery resources.
Solid waste 1. Domestic garbage should be jointly collected and transported to garbage processing station at Xiniu Town. Supervised by PEO,
disposal MEPB'S and GDEPB,
also sanitation department.
Safety 1. All goods should be packed properly when being delivered by vessel(National byelaw, 2002/6/18). Supervised by PEO,
2. According to regulations, if there is a delivery accident and the goods fall into the river that may pollute the water, the situation must be MEPB'S and GDEPB.
reported to the waterway department immediately.
3. The waterway department should be equipped with boats and relevant tools such as oil separators, oil removal devices and salvage
facilities. When there is accident, measures for meeting the crisis must be adopted in time.
4. A system of cooperating with the waterworks in Xiniu Town should be especially implemented. The waterworks is suppose to adopt
necessary measures to prevent water from being polluted, and in the event of possible leakage and pollution of the water supply, they
must be ready to stop supplying the water at that crisis time.
51
Appendix II Standard and Guidelines
1 Basement of the Project EIA
1.1 Environment related Laws and Regulations
1) Environment Protection Law of the People's Republic of China (December
1989);
2) Water Pollution Prevention and control Law of the People's Republic of China
(May 1996);
3) Water law of the People's Republic of China (January 1988);
4) Air Pollution Prevention and control Law of the People's Republic of China
(September 2000);
5) Prevention Environment from Solid wastes and Control Law of the People's
Republic of China (October 1995);
6) Noise Pollution Prevention and Control Law of the People's Republic of China
(March December 1997);
7) Land Governance Law of the People's Republic of China (1 998);
8) Forest Law of the People's Republic of China (December 1998);
9) Wildlife Conservation Law of the People's Republic of China (December
1988);
10) Water and Soil Conservation Law of the People's Republic of China (1991);
11) Flood Prevention and Control Law of the People's Republic of China (1998);
12) Cultural Relics Prevention Law of the People's Republic of China (May 1992);
13) River Governance regulations of the People's Republic of China (1998);
14) Navigation Channel Governance regulations of the People's Republic of China
(1987);
15) Environment Protection Administration Regulations for Construction Projects
(State Council, 1998);
16) Announcement to Enforce Administration of EIA for the construction Projects
Loaned by International Financial Organizations (SEPA etc, 1993);
17) Professional Manual of World Bank -Environment Assessment (OP/BP/GP
4.01);
18) A Classification List of Construction Projects (The first list) for Environment
Protection Management (2001);
19) Environment Protection Management of Communication Construction Projects
(the Ministry of Communications, 1990);
20) Environment Protection Administration Regulations for Construction Projects
in Guangdong Province (People's Congress of Guangdong Province, 1994);
21) Surface Water Directory of Guangdong Province (People's Government of
Guangdong Province, 1999); and
22) Environment related contents in the local urban development master plans and
environmental plans of Yingde, etc.
1.2 Technical Guidelines
I ) Environment Impact Assessment Technical Guidelines issued by State
Environment Protection Administration (HJ/T2.1-2.3---93);
2) Environment Impact Assessment Technical Guidelines - Non-pollution
Ecological Impacts issued by State Environment Protection Administration
(HJ/TI 9-97);
3) Environment Impact Assessment Technical Guidelines- Acoustic Environment
issued by State Environment Protection Administration (HJ/T2.4-95);
4) Guidance of EIA for Water Conservancy and Waterpower Projects (trial)
(SDJ302-88) 1989;
5) Environmental Impact Assessment Specifications for Inland Waterway Project
(JTJ 227-2001) issued by State Transportation Administration;
6) Comprehensive Guidelines of Water and Soil Conservation
(GB/T16453.6-1996); and
7) Technical Specification of Water and Soil Conservation for Development
2
Project (SL201-98).
1.3 Project Proposal and Feasibility
1) Project proposal for the Lianjiang Xiniu Navigation Junction Complex;
2) Feasibility Study Report of the Lianjiang Xiniu Navigation Junction Complex;
3) An Introduction to the Lianjiang Xiniu Navigation Junction Complex;
4) Letter to SCIES for EIA study of the Lianjiang Xiniu Navigation Junction
Complex issued by Guangdong Province Waterway Bureau (January of 2002).
2 Environment Standards and Control Standards of Pollutants
2.1 Surface Water
Water Quality Standard
According to the water function directory of "Water Resource Quality Protection
Program of Guangdong Province" and "Water Environmental Function Directory
(trial)", the environment functions of the Lianjiang River in section from Hanguang to
Lizui is Class II, in section from Lizui to Xiniu Town is Class III, and in section from
Xiniu Town to downstream is Class III (also shown in the Fig.2.1). "Environmental
Quality Standard for Surface Water" (GB 3838-2002) is the environmental quality
standards for surface water assessment. Besides, the following standards are as
references:
1) Water Quality Standard for Fisheries (GBI 1607-89). The stipulations for SS in the
standard says "increased SS concentration in the water by any activity is no more than
1Om/L", "no harmful impacts should be allowed on any fish, shrimp or shellfish, if
suspended solid set down to the bed";
2) Hygiene Standard for Drinking Water (GB5479-85); and
3) Standard for Irrigation water Quality (GB5084-92).
Table2. I Environmental quality standards for surface water (GB3838-2002) (mg/L)
Items I ClassI l 11 I- IV |vpH 6-9
3
Oxygen ¢ Saturation rate 6 5 3 290% (or 7.5)
Permnanganate salt index S 2 4 6 10 15
COD 15 15 20 30 40
BOD5 3 3 4 6 10
NH3-N 0.15 0.5 1.0 1.5 2.0
T-P (based on P) S 0.02 0.1 0.2 0.3 0.4
T-N (for lake and water conservancy 0.2 0.5 1.0 1.5 2.0based on N) S
Cu 0.01 1.0 1.0 1.0 1.0
Zn 0.05 1.0 1.0 2.0 2.0
F -. 1.0 1.0 1.0 1.5 1.5
Se < 0.01 0.01 0.01 0.02 0.02
As -. 0.05 0.05 0.05 0.1 0.1
Hg < 0.00005 0.00005 0.0001 0.001 0.001
Cd S 0.001 0.005 0.005 0.005 0.01
Cr6 0.01 0.05 0.05 0.05 0.1
Pb 0.01 0.05 0.05 0.05 0.1
CN- 0.005 0.05 0.2 0.2 0.2
phenol S 0.002 0.002 0.005 0.01 0.1
Petroleum S 0.05 0.05 0.05 0.5 1.0
surfactantS 0.2 0.2 0.2 0.3 0.3
Sulfide S 0.05 0.1 0.2 0.5 1.0
Faecal coliform (pc/L) - 200 2000 10000 20000 40000
Control Standard of Water Pollutants Discharge
"Effluent limit of water pollutants of Guangdong Province" (DB44/26-2001) is taken
into the consideration when Control standard of pollutants discharge is decided. Besides,
"Discharge standard of pollutants from ships" (GB3552-83) is a reference.
Table 2-2 Discharging limitation of contaminations in water(DB44/26-2001). (mgfL) (Part)
Polluted materials SS BOD5 CODcr Petroleum Sulphide NH3 -N Phosphate (based on P)
Class 1 60 20 90 5.0 0.5 10 0.5
Class 2 100 30 110 8.0 1.0 15 1.0
Class3 400 300 500 20 2.0 - -
2.2 Noise4
"Standard of environment noise of urban area" (GB3096-93) is a reference for noise assessment.Class I noise standard is applied for any schools, hospitals and residential areas: 55 dB for daytimeallowed highest noise level, 45 dB for nighttime. Class 2 noise standard is applied for commercialand industrial areas: 60 dB for daytime allowed highest noise level, 50 dB for nighttime.
Table 2-3 Standards of Environmental Noise in Urban Area (GB3096-93)
Type Daytime Nighttime
0 50 40
1 55 45
2 60 50
3 65 55
4 70 60
"Standard of noise at boundary of industrial enterprises" (GB 12523-90) is for noise assessment andcontrol for the project sides, and is listed in Table2-4.
Table 2-4 Limit of noise in constructional scope (GB12523-90) Leq[dB(A)]
Construction Main source of noise Limitation of noise
phase Daytime Nighttime
Earth and Bulldozer, excavator, loading 75 55
stone machine and so on
Piling Each kind of piling machine 85 Construction
prohibited
Structure Mixer of concrete, vibrating 70 55
stick, electrical saw and so on
Exterior Crane, elevator and so on 65 55finish
2.3 Air Environment
The Standards for air quality assessment and air pollutants emission control are
Standard grade 2 in "Ambient air quality standard" (GB3095-1996), standard grade 2 in
"Integrated Emission limit for air pollutants of Guangdong Province" (DB44/27-2001),
respectively.
Table 2-5 Quality Standards of Environmental Air (GB3095-1996)
Name of Time of Limitation of consistence (mg./standard cubit
contamination recording meter)
Standard I Standard 11 Standardill
5
TSP Annual 0.08 0.20 0.30
average
Daily average 0.12 0.30 0.50
SO2 Hourly 0.15 0.50 0.70
average
Daily average 0.05 0.15 0.25
Annual 0.02 0.06 0.10
average
NO 2 Hourly 0.12 0.24 0.24
average
Daily average 0.08 0.12 0.12
Annual 0.04 0.08 0.08
average
2.4 River sediments
Standard grade 2 in the "Environment quality standard for soils" (GB15618-1995) is for riversediments; and "Pollutants control standard for sludge used in farmland" (GB4284-84) is thereference for the silts dredged out.
2.5 Soils
Class 3 of "Environment quality standard for soils" (GB15618-1995) is applied for soil assessmentof the project. The standard values are listed in the Table 2.6.
Table 2.6 Class 3 of "Environment quality standard for soils" (GB 15618-1995) (Part)
Parameter Cd Hg . As Cu Pb Cr Zn Ni
Paddy Farmland Paddy Farmland
Value 1.0 1.5 30 40 400 500 400 300 500 200
(mg/kg) I I I I I I 1
6
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Layout of Xiniu Navigation Junction Complex
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| W4PE Zhiwu (Stone Quarries)
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N ' Dongping /
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5Vb l><Mazhukeng .Air Monitoring Point
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Locafions of Public consultation