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INITIAL ENVIRONMENTAL EXAMINATION

Project number: 40238-023

July 2016

LOAN 3032-VIE: PRODUCTIVE RURAL INFRASTRUCTURE

DEVELOPMENT PROJECT IN THE CENTRAL HIGHLANDS

Subproject: Repairing, Upgrading Di Linh Western and Eastern Reservoirs, Flood Bypass of Ka La Reservoir and Productive Rural Infrastructure in Di Linh District, Lam Dong Province

Prepared by Central Project Management Unit – Agriculture Project Management Board -

Ministry of Agriculture & Rural Development for the Asian Development Bank

Initial Environmental Examination (IEE)

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CURENCY EQUIVALENTS

(As of May 01, 2016)

Currency unit – Vietnamese Dong (VND)

VND 1.00 = $0.0000472

$1.00 = VND 22,250

ABBREVIATIONS

ADB Asian Development Bank

AP Affected persons

CEP Commitment on Environmental Protection

CPC Communal People’s committee

CPMU Central Project Management Unit

DARD Department of Agriculture and Rural Development

DONRE Department of Natural Resources and Environment

DPC District People’s Committee

EIAR Environmental Impact Assessment Report

EMDF Ethnic Minority Development Framework

EMP Environmental Management Plan

DARD Department of Agriculture and Rural Development

HH Household

IMA Independent monitoring agency

IEE Initial Environmental Examination

IPM Integrated Pest Management

LIC Loan Implementation Consultant

MONRE Ministry of Natural Resources and Environment

PC People’s Committee

PPC Provincial People’s Committee

PPMU Provincial Project Management Unit

RF Resettlement Framework

SIR Subproject Investment Report

TPC Town People’s Committee

UXO Unexploded Ordnance


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WEIGHTS AND MEASURES

km – kilometer

kg – kilogram

ha – hectare

m – meter

NOTE

In this report, "$" refers to US dollars.

This initial environmental examination is a document of the borrower. The views expressed herein do not necessarily represent those of ADB's Board of Directors, Management, or staff, and may be preliminary in nature. Your attention is directed to the “terms of use” section of this website.

In preparing any country program or strategy, financing any project, or by making any designation of or reference to a particular territory or geographic area in this document, the Asian Development Bank does not intend to make any judgments as to the legal or other status of any territory or area.


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TABLE OF CONTENTS

I. INTRODUCTION ......................................................................................................................... 5

II. POLICY FRAME, LEGISLATION AND MANAGEMENT ......................................................... 6

2.1 ADB policy .............................................................................................................................. 6

2.2 Environment regulations of Vietnam government .................................................................. 6

III. SUBPROJECT DESCRIPTION ................................................................................................ 8

IV. DESCRIPTION OF EXISTING ENVIRONMENT................................................................... 17

V. ENVIRONMENTAL IMPACT SCREENING ............................................................................ 25

5.1 Positive impacts ........................................................................................................................ 25

5.2 Negative impacts ...................................................................................................................... 25

VI. ENVIRONMENTAL MANAGEMENT PLAN .......................................................................... 42

6.1 Environmental impacts and mitigation measures .................................................................. 42

6.2 Environmental monitoring ....................................................................................................... 59

6.2.1 Environmental effect monitoring ................................................................................. 59

6.2.2 Environmental compliance monitoring ........................................................................ 60

6.3 Building capacity for EMP implementation ............................................................................... 64

6.4 Budget for EMP implementation .............................................................................................. 65

VII. IMPLEMENTATION RESPONSIBILITY AND REPORTING ............................................ 66

7.1 Implementation responsibility ................................................................................................... 66

7.2 Report system ........................................................................................................................ 68

VIII. PUBLIC CONSULTATION AND INFORMATION DISCLOSURE ...................................... 69

8.1 Public consultation in the subproject preparation phase ......................................................... 69

8.1.1 Description of activities to date ................................................................................... 69

8.1.2 Outcomes of the public consultation to date ............................................................... 69

8.2 Consultation in future ............................................................................................................... 70

8.3 EMP disclosure ......................................................................................................................... 70

IX. GRIEVANCE REDRESS MECHANISM ................................................................................. 71

9.1 Purpose of the mechanism ....................................................................................................... 71

9.2 Grievance redress mechanism ................................................................................................ 71

X. CONCLUSION, COMMITMENT AND RECOMMENDATION ................................................ 72

10.1 Conclusion .............................................................................................................................. 72

10.2 Commitment ........................................................................................................................... 72

10.3 Recommendations.................................................................................................................. 72

XI. ANNEX .................................................................................................................................... 73

ANNEX 1: PUBLIC CONSULTATION IMAGES AND AT THE SUBPROJECT SITE ................... 73

ANNEX 2: MINUTES OF PUBLIC CONSULTATION .................................................................... 74

ANNEX 3: MINUTES AND DIAGRAM OF DISPOSAL YARDS .................................................... 80

ANNEX 4: MONITORED RESULTS OF ENVIRONMENTAL PARAMETERS .............................. 82

ANNEX 5: ENVIRONMENTAL REQUIREMENT IN THE BIDDING DOCUMENT ........................ 89


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LIST OF TABLES

Table 1: General information of the subproject ....................................................................... 8

Table 2: Baseline Environment ............................................................................................ 19

Table 3: Environmental impact screening ............................................................................ 25

Table 4: Environmental mitigation plan ................................................................................ 42

Table 5: Environmental effect monitoring ............................................................................. 59

Table 6: Environmental compliance monitoring .................................................................... 60

Table 7: Schedule of training on capacity building ............................................................... 64

Table 8: Budget for EMP implementation ............................................................................. 65

Table 9: Responsibility of stakeholders ................................................................................ 66

Table 10: Monitoring and reporting system .......................................................................... 68

Table 11: Public consultation description ............................................................................. 69

Table 12: Results of public consultation ............................................................................... 69

Table 13: Expected public consultation activities ................................................................. 70


Subproject: Repairing, upgrading Di Linh western and eastern reservoirs, flood bypass of Ka La reservoir and productive rural infrastructure in Di Linh district, Lam Dong province

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I. INTRODUCTION

The Productive Rural Infrastructure Development Project in the Central Highlands (The Project) is funded by loan from ADB, and Ministry of Agriculture and Rural Development (MARD) is the project owner. This project will be implemented within 05 years (2014 – 2019) and taken place in the 05 provinces (Lam Dong, Dak Nong, Dak Lak, Gia Lai and Kon Tum) of the Central Highlands.

The long-term purpose of Project is contributing to hungry alleviation and poverty reduction programs of the Government through sustainable development of the society, ecology and environment at community levels by developing infrastructures for production, improving socio-economic conditions and living standards of people in the area.

The short-term objectives of the project are (i) to rehabilitate and upgrade deteriorated or damaged irrigation systems and rural infrastructures, which are serving for production in 05 provinces of Highlands. (ii) To strengthen management capacity and implementation of ODA projects; strengthen infrastructure management at community, province, district and commune levels to gradually improve living standards and conditions of the poor in the project area in the Central Highlands. (iii) To build models, institutional policies on "water saving irrigation technology for strategic and economic valuable plants" and "management and exploitation of irrigation schemes sustainably with the participation of all economic sectors ".

One sub-project of The Project is “Repairing, upgrading Di Linh Western and Eastern reservoirs, flood bypass of Ka La reservoir and productive rural infrastructure in Di Linh district, Lam Dong province”, that will be implemented in Di Linh town (at Western and Eastern reservoirs) and Bao Thuan commune (flood bypass Ka La), Di Linh district, Lam Dong province. Such project areas are distance from 2.3 – 8 km from center of Di Linh district. The objectives of this sub-project are improving livelihood and quality of lives for local people by enhancing effectiveness of rural infrastructures; application of advanced technologies in agriculture; reducing land loss in agriculture; creating stabilized jobs for local people and contributing in poverty alleviation and accessing to basic services including health care, education and financing etc.; reducing travel costs for local people; and contributing in New Rural Development Program.

The objectives and scope of this IEE are to (i) assess the existing environmental conditions along and in the vicinity of the subproject; (ii) identify potential environmental impacts from the proposed components; (iii) evaluate and determine the significance of the impacts; (iv) develop an environmental management plan (EMP) detailing mitigation measures, monitoring activities, reporting requirements, institutional responsibilities and cost estimates to address adverse environmental impacts; and (v) carry-out public consultations to documentary issues/concerns that stakeholders may have on the sub-project and to ensure that such concerns are addressed in the sub-project design and mitigation measures.

This Initial Environmental Examination (IEE) of the sub-project is prepared to meet the requirements of environmental safety of ADB and the environmental regulations of Government of Vietnam. Its structure includes 11 parts as following:

(i) Introduction (ii) Policy framework, legislation and

management (iii) Sub-project description (iv) Description of existing environment (v) Environmental impacts screening (vi) Environmental Management Plan

(vii) Implementation arrangement, monitoring and reporting

(viii) Public consultation and information disclosure

(ix) Complaint Redress Mechanism (x) Conclusion commitment and

Recommendation (xi) Annexes



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II. POLICY FRAMEWORK, LEGISLATION AND MANAGEMENT

2.1 ADB policy

ADB Safeguard Policy Statement (SPS) 2009 imposes safeguard requirements for all its funded projects. The SPS 2009 clarifies reasons, scope and contents of the environmental assessment. The SPS emphasizes on environmental and social sustainability in progress of economic growth and poverty reduction in Asia and the Pacific, therefore, the objectives of SPS focus on:

i. Avoid adverse impacts of projects on the environment and affected people, where possible;

ii. Minimize/mitigate and/or compensate for adverse impacts on environment and affected people when avoidance is not possible; and

iii. Help borrowers/clients to strengthen their safeguard systems and develop the capacity to manage environmental and social risks.

The SPS requires preparing environmental safeguard document in the process of preparing a project including environmental management plan (EMP). The borrower/client needs to monitor EMP implementation. The monitoring will identify outstanding issues of EMP implementation and propose appropriate mitigation measures. Periodic monitoring reports on EMP activities will be submitted to ADB every semi-annual during construction of the project.

Moreover, all subprojects under the loan 3032-VIE need to follow the specific guidance on environmental assessment as stated in the Environmental Assessment Review Framework (EARF) of the project, prepared by the project owner and approved by ADB. The subprojects under loan 3032-VIE only categorized as Category B or C will be included in the list of eligible sub-projects for possible funding under the proposed Project. It is anticipated that all eligible sub-projects will fall into Category B, whereby some adverse environmental impacts are expected, but of a lesser.

The subproject “Repairing, upgrading Di Linh western and eastern reservoirs, flood bypass of Ka La reservoir and productive rural infrastructure in Di Linh district, Lam Dong province” is selected based on the project’s EARF that may cause the insignificant environmental impacts to the environment and ranked as categorized B. Therefore, an IEE needs to be prepared with an EMP enclosed.

2.2 Environment regulations of Vietnam government

The project must also comply with the environmental regulations. The Vietnam legal framework comprises of the following items:

- The Law on Environmental Protection adopted by the National Assembly of the Socialist Republic of Vietnam dated January 01, 2015. The law regulates general environmental protection requirements, policies and resources for protecting the environment;

- The Law on Labor adopted by the National Assembly of the Socialist Republic of Vietnam dated June 18, 2012 that regulates general requirement on safety and occupational health;

- Decree No. 18/2015/NĐ-CP on April 01, 2015 of the Government that regulates on environmental protection planning, strategic environmental assessment, environmental impact assessment (EIA) and environmental protection commitment (EPPs);

- Decree No. 38/2015/ND-CP on June 15, 2015 of the Government that stipulates on waste and disposal management;

- Decree No. 201/2013/NĐ-CP on November 27, 2013 of the Government that details the Law on water resources;



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- Circular No. 27/2015/TT-BTNMT on May 29, 2015 of the Ministry of Natural Resources and Environment (MONRE) that guides details on strategic environmental assessment, environmental impact assessment and environmental management plans;

- Circular 36/2015/TT-BTNMT on June 30, 2015 of the Ministry of Natural Resources and Environment (MONRE) that stipulates on Hazardous waste management;

- Circular 27/2013/TT-BLDTBXH on November 18,2013 of the Ministry of Labor, War invalids and Social Affairs that guides training on labor safety and hygiene;

- Decision 3733/2002 /QĐ-BYT on October 10, 2002 of the Ministry of Health that promulgates 21 labor hygiene standards, 5 principles and 7 labor hygiene measurements;

- TCVN 6707:2009: National technical standard Hazardous waste – Warning signs;

- QCVN05:2013/BTNMT: National technical regulation on ambient air quality;

- QCVN 26:2010/BTNMT: National technical regulation on noise;

- QCVN 27:2010/BTNMT: National technical regulation on vibration;

- QCVN 01:2009/BYT: National technical regulations on drinking water;

- QCVN 07:2009/BTNMT: National technical regulation on hazardous waste thresholds;

- QCVN 08:2015/BTNMT: National technical regulation on surface water quality;

- QCVN 09:2015/BTNMT: National technical regulation on ground water quality;

- QCVN 14:2008/BTNMT: National technical regulation on domestic wastewater;

- QCVN 04 – 05:2012/ BNNPTNT: National technical regulations on irrigation works – main regulations on design.



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III. SUBPROJECT DESCRIPTION

The general information of Sub-project has been described as following table:

Table 1: General information of the subproject

DESCRIPTION SUB-PROJECT DATA

III.1. GENERAL INFORMATION

Sub-Project Name Repairing, upgrading Di Linh western and eastern reservoirs, flood bypass of Ka La reservoir and productive rural infrastructure in Di Linh district, Lam Dong province

Sub-Project type Repairing, upgrading productive irrigation and reservoir and rural infrastructure

Sub-Project Owner Department of Agricultures and Rural Development (DARD) Lam Dong

Sub-Project owner’s representative

Production Rural Infrastructure of Central Highlands Project (PRI CHP), Lam Dong

Address of Sub-Project Owner’s representative

No.14, Hung Vuong street, Ward 10, Da Lat City, Lam Dong province

Name and title of head of sub-project owner’s representative

Phone: (063) 3822049; Fax: 063.3828630

Email: [email protected]

Telephone, fax and email details of sub-project owner’s representative

Name: Ninh Tri Vien

Phone: 0918399277; Fax: 063.3828630

Email: [email protected]

III.2. SUBPROJECT DESCRIPTION

1. New or innovating or upgrading project

Repairing, upgrading reservoirs and rural road infrastructure

2. Components of the subproject

Sub-project will repair and upgrade existing reservoirs for irrigation and improving rural transportation by upgrading rural roads. Those activities expected to increase agricultural productivity and improve socio-economic living conditions for local peoples.

The details of components include:

(i) Repairing and upgrading irrigation including East and West reservoirs of Di Linh district;

(ii) Repairing and upgrading rural roads including flood bypass at Ka La reservoir and road on dam crest of West reservoir, which is interconnecting National Highway 20 with head-works of reservoir and main road of district.

The volume of East reservoir (0.68*106m3) and West reservoir (1.8*106m3) is categorized as Grade IV (as in QCVN 04:05/2012 of MARD). The design of reservoirs is Grade III, thus reservoirs will increase storage volume from 0.16 x 10 6 m3- 0.24 x10 6m3;

2.1. Repairing and upgrading irrigation:

The East Reservoir of Di Linh: the capacity of East reservoir of Di is 0.62 million m

3, which supplies water for 100 ha of coffee and crop culvitation

area in Di Linh town. The reservoir is now considerably deteriorated. The

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DESCRIPTION SUB-PROJECT DATA East reservoir of Di Linh Town

subproject will rise normal water level +0.4 m (from +933.8 to +934.2 m), technical specification of reservoir headwork before and after upgrading could be summarized as the below:

Item Unit Before upgrading After upgrading

Reservoir

Catchment area km2 1.59 1.59

Full supply level /Normal water level

m 933.08 934.20

Design flood level (frequency: 1.5%)

m 934.33 934.70

Check flood level ( frequency 0.5%)

m 934.42 934.80

Dead water level m NA 926.02

Total storage volume Mill m3

0.62 0.68

Dam (soil dam)

Length of dam m 152 202.55

Dam crest elevation m 934.08 935.50

Wave wall elevation m N/A 936

Maximum crest height m 11.20 12.00

Dam crest width m 4.0-6.0 6.0

- The main interventions in East reservoir of Di Linh include: Soil dam: repairing penetration resistance ability of dam by a wall on upstream dam slope which will be embankment by low penetrative soil (K = 10-5 cm/s) for irrigation. The impervious core upstream slope is 3:1 and upstream toe wall is 3 m width;

- Upstream slope of dam: Slope coefficient is 3:1 and the slope will be made of reinforced concrete, to avoid water penetration, geotextile sheets are placed under layers of crushed stone and sand. Each layer is 15 cm thick;

- Downstream slope of dam: excavate 0.5 – 1.0m to remove termite nests and reduce land erosion by planting grass in hexagon cells and installing water drains, the slope coefficient is =2.75, the toe of wall is 8 m wide;

- Dam crest: Dam crest will be used as road. It is designed as wide B = 6 m, reinforced-concrete M250, 18 cm thick based on a sand layer (5 cm). The curb in downstream side is reinforced-concrete M200 and the upstream side is a wall (0.3 m of thickness and 0.5 m of height) to stop the waves;

- Flood spillway: break down the existing flood spillway and construct new one 5m of width, made of reinforced-concrete M200, and will also serve as a road. The spillway will be 31.9m of length, 5 – 2.5m of width, with a slope of 0.035 (3.5%) made of reinforced-concrete M200. The stilling basin is 0.5 m of depth, 11.7m of length and made of reinforced-concrete M200. The downstream canal includes 02



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DESCRIPTION SUB-PROJECT DATA sections: canal will be 150m of length , 0.005 slope, 2.5m of width; and 04 stairs made of reinforced-concrete M200 at the end of canal (stair will be 12.7 m of length, 2.15 m of height)

- Water intakes: the water gate will be rectangular shape (0.8 x 1.2 m), 16.3m of length, located 24.8m downstream of the spillway and made of reinforced-concrete M200. It is operated without pressure and controlled by an upstream flow-regulating valve.

2.2. Repairing and upgrading irrigation: West reservoir of Di Linh Town

The West Reservoir of Di Linh: the capacity of west reservoir of Di is 1.64 million m

3, which supplies water for 200 ha of coffee and crop

cultivation area in west of Di Linh town. The reservoir is now considerably deteriorated. The subproject will rise normal water level +0.4 m (from ++0.3 m (from +935.8 to +936.1 m), technical specification of reservoir headwork before and after upgrading could be summarized as the below:

Item Unit Before upgrading After upgrading

Reservoir

Catchment area km2 3.23 3.23

Full supply level /Normal water level

m 935.80 936.10

Design flood level (frequency: 1.5%)

m 936.12 936.40

Check flood level ( frequency 0.5%)

m 936.18 936.46

Dead water level m NA 931.40

Total storage volume

ill m3 1.64 1.80

Dam (soil dam)

Length of dam m 140 172.5

Dam crest elevation m 937.80 938.00

Wave wall elevation m 938.50

Maximum crest height

m 7.80 8.00

Dam crest width m 5.0-6.0 6.0

- The main interventions in West reservoir of Di Linh include Soil dam: increasing water penetration resistance of the dam by a wall covering the upstream dam slope; the embankment is done by low penetrative soil (K = 10-5 cm/s); the impervious core of upstream slope is 3:1 and the upstream toe of wall is 3m of width;

- Upstream slope of dam: The slope coefficient is 3:1 and made of reinforced-concrete M200 (plates of 2x2 m x10 cm with holes for drainage), to avoid water penetration, geotextile sheets are placed under layers of crushed stone and sand. Each layer is 15 cm of thick;

- Downstream slope of dam: excavate 0.5 – 1.0m to remove termite nests and reduce erosion by planting grass in hexagon cells and installing water drains, the slope coefficient is =2.5;



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- Dam crest: Wide B = 6 m, integrated with road function and constructed by 2 layers of reinforced-concrete 12cm (5 + 7 cm) of thick and based on layer (18 cm thick) of crushed stone. The curb in downstream side of road is made of reinforced-concrete M200 while a wall (0.3m of thickness and 0.5 m of height) is built in upstream to stop the waves;

- Flood spillway: upgrading existing flood spillway by: rising spillway threshold + 0.3 m made by reinforced-concrete M250. Demolish existing bridge and construct new one 6.0 m wide crossing above the spillway for transportation function. The wall and base of the spillway are of reinforced-concrete M250, 10 cm thick;

- Water intakes: the water gate will be of rectangular shape (0.8 x 1.2 m), 47.7 m long, located 6.5 m from spillway towards of the water stream and made of reinforced-concrete M200. It isoperated without pressure and is controlled by an upstream flow-regulating valve.

2.3 Repairing and upgrading rural roads

Road: 07 km of existing flood bypass in Ka La reservoir & 02 km of existing road East reservoir’s dam along its crest will be repaired and upgraded;

Technical parameters of Ka La bypass and road to East reservoir’s dam

Item Unit Ka La bypass Road to East reservoir’s dam

Before upgrading

After upgrading

Before upgrading

After upgrading

Length of road ( included length of dam )

m 7,000 7,000 2,000 2,000

Width of road m 3+2x0.5 3+2x0.5

Maximum slope % 18 10 18 10

- Road: will be upgraded to grade B in TCVN 210-92 & TCVN 2054:2005, with the width is 4m. The road surface will be 18cm of thick and made of reinforced-concrete M25, which laying on a 5cm sand stratum;

- Drains: The drains are in trapezium form (0.4x0.4x1.2m), located where needed with slope > 6% along the roads. Cement M100 will be used for their construction and are connected with new and existing culverts also used for irrigation and drainage in sub-project sites;

- Intersections of roads: 04 intersections will be constructed with the same design and specifications of the main roads;

- Traffic signs: the warning signs, painted with reflecting material, will be located at dangerous/significant points.

Quantity and size of drainage culverts

Culverts: 16 culverts cross the upgraded roads, include 4 of rectangular shape culverts and 12 pipe-culverts. The rectangular culverts will be made of reinforced-concrete M250; while pipe culverts are made of reinforced-concrete M200;

- Five culverts will be located at intersection with communes road in East reservoir include: 03 rectangular culverts; 02 pipe culverts;

- The flood bypass in Ka La reservoir includes 10 new pipe culverts; 14 connecting points with existing pipe culverts; and 01 rectangular



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DESCRIPTION SUB-PROJECT DATA culvert;

Quantity of bridges There is 01 bridge to be newly constructed over the spillway in East reservoir. The bridge is 22.1m of length and 5 m of width and is made of reinforced-concrete M300; its slab is 20 cm thick.

Irrigation and drainage structures ( existing irrigation & drainage structures)

Drainage structure: The current drainage structure in reservoirs and roads are side drains at the junction of the embankment slopes and the natural ground with slope > 6% (road drains), they will not be graded. ;

Irrigation: Di Linh has 06 reservoirs, they have been built from 1964 – 2002. The Ka La reservoir was built in 2002, the West Reservoir in 1982 and the East reservoir in 1986. These reservoirs are now considerably deteriorated and their irrigation capacity became insufficient, but subproject will involve in upgrading capacity of East and West reservoirs of Di Linh. At the downstream of East and West Di Linh reservoirs there are irrigation canals, serving a total of 300 ha of agricultural area in the Di Linh district, all of them will be not included in the subproject scope;

Area of site clearance1

The sub-project activities will be taken place in existing reservoirs and roads. The land to be acquired is 600 m2. According to Report on Land Acquisition Completion and Ethics Minorities of sub-project, there are 04 households in Di Linh town that will be affected by land acquisition. However, the areas of acquired land are just 2% - 5% of total productive land of each household, and these lands are in boundary areas of productive land. The main site clearance consist of demolition of a temporary fence and of some trees.

The temporary acquired areas for construction activity is 6.0 ha that will be used for material storage. 0.5 ha for borrow pits and as disposal sites (5.5 ha). However, all these are vacant land.

Other roads that intersect with subproject’s roads

The Ka La flood bypass and East Di Linh reservoir’s dam crest road intersect National Road No 20, which is a main transportation road axis of the subproject area that results in convenient transportation and increasing access to markets, medical centers/hospitals and schools.

There are total of 4 intersections, include 01 intersection in Ka La bypass (at section of Km0+0.00) and 03 intersections in road on East reservoir connecting with 03 commune roads at sections of Km0+0.00, Km0+293.40 and Km1+448.49.

The main streams across the road

- Rivers

- Reservoirs

- Other streams

The Dariam river flows along National Highway No.20 (distance to project site is 2 km to West reservoir of Di Linh ). This river passes through Di Linh district with total length of 26.6 km from the East to West and then flows into Dargna River. Dariam is the largest river in the district abundant of water for local irrigation purpose.

The Da Dung river is upstream of Dong Nai River, starting from the eastern part of Di Linh (at National Highway No.20) towards North-West (19.4 km) and then flowing into Dong Nai River. This river is the natural boundary between Di Linh and Lam Ha districts. Although the river is abundant in water but not much exploited for irrigation.

The Dargna river is upstream of La Nga River with 9.3km passing through Di Linh, from North to South. This river is convenient for production purposes and livelihood of local people.

1 According to Land Acquisition Completion Report (January 2016) and Feasibility Study (2015)



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There are several others streams in the sub-project area, various springs and small reservoirs. The Ka La spring is the largest one. The reservoirs in sub-project area include Dong Do, Ka La 2, Ka La 3, Reservoir 109, Ka La. Source: http://www.lamdong.gov.vn/

Number of hills and mountains

Di Linh district has different topographical features mainly categorized into two types: plateau and mountain. The plain areas are located along National Highway No.20, No. 28 and inter-communes roads. The mountain topography is located in the sub-project area.

III.3. CONSTRUCTION ACTIVITIES

Commencement (month/year)

Planned: Quarter IV of 2016

Finish (month/year) Planned: Quarter III of 2018 (August)

Number of construction worker

Estimated around 100 workers

Are there any camps for workers? Yes/no

Yes, there will be 03 camps (in East, West and Ka La reservoirs), for the estimated 100 workers.

Will the construction take place in rainy seasons?

In rainy season, there could be some activities such as: building diversion canal, planting grass, constructing wave-breaking wall, electrical and mechanical systems etc. The main construction activities will be implemented in the dry season

Number of concrete mixers

The sub-project will employ 06 mobile concrete mixers with a capacity of 500l each.

Construction methods

East and West Reservoirs

To ensure sufficient irrigation capacity for cultivation activities flow diversion construction method will be applied during upgrading 2 reservoirs

Construction Flow Diversion & construction method: Construction process to be divided into four periods as bellow:

East reservoir upgrading:

� First Period: 01/10 - 30/12: Site preparations, material store ground, camps, construction road; Preparation of construction materials, construction machines & equipment; and lowering reservoir water level from January;

� Second period 01/1 - 30/3: Water flow: From January to the end of March, reservoir flow to be diverted through plastic pile PVC with D=0.4 m to downstream; Works: Building upstream cofferdam up to elevation: 927.60m

� The third 01/4 -30/6: Water flow to be diverted to the downstream through new culvert completed. Works: Breaking down upstream cofferdam, demolishing plastic pine; Filling dam from 928.50m high to the design elevation, reinforcing upstream dam slope and building spillway completely

� The fourth period 01/7 - 30/9: Building dam surface made of concrete, wave wall; Install mechanical equipment; planting grass on dam slopes and whole reservoir & headwork to be completed before 30 September



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West reservoir upgrading:

� First Period 01/10 - 30/12: Site preparations, material store ground , camps, construction road; preparation of construction materials, construction machines & equipment and lowering reservoir water level from January;

� Second period 01/1 - 30/3: Water flow: from January to the end of March, reservoir flow to be diverted through old culvert with D=0.8 m to the downstream. Works: building upstream cofferdam up to elevation : 931.70 m;

� The third 01/4 -30/6: Water flow to be diverted to the downstream through new culvert completed. Works: breaking down upstream cofferdam, demolishing; upstream pipe of old culvert and breaking down old culvert and filling dam from 933.0 m to design elevation, reinforcing upstream slope of dam and building spillway completely

� The fourth period 01/7 - 30/9: Building dam surface by concrete, wave wall; install mechanical equipment; planting grass on dam slopes and whole reservoir & headwork to be completed before 30 September

Ka Lar bypass road & road passing East reservoir: to ensure the travel and drainage of local people during upgrading the road, construction method will follow the below steps :

- First construction of road bed, drains and crossing-drainage culverts, followed by bridges construction;

- Second, construction of road surface, installation of safety signs and any other necessary equipment components. Road will be built in section by section to avoid disruption of travelling of local people.

Temporary location and area occupation and material source

Source of materials:

- Soil: soil for embankment construction in East and West reservoirs and flood bpass Ka La & road to East reservoir dam will be taken from Gung Re borrow pit, capacity : 50,000 m3 . This borrow pit is existing borrow pit in public land area, and has been approved by Di Linh DPC

- Reinforcing steel: will be purchased from Bao Loc City;

- Asphalt: will be purchased from Da Lat City;

- Sand will be purchased from sand mine in Bao Thuan commune of Di Linh District, 8.5 km away from sub-project areas. This sand mine is being exploited and possess the necessary Government’s licenses;

- Stones will be purchased from Tam Bo stone quarry in Tam Bo commune, Duc Trong district, and 23 km away from the sub-project areas. This stone quarry is being exploited and has the necessary Government’s licenses;

- Electric Power: Extracted from existing grid and supplemented by 04 generators if necessary.



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Measures to manage and balance excavation/ embankment spoil/stone

Excavation soil :

• East reservoir: 37,251 m3 • West reservoir: 19,346 m3 • Ka La bypass & East road : 36,752 m3 • Total excavated soil : 93,349 m3

Embankment soil :

• East reservoir: 29,505 m3 • West reservoir: 14,881 m3 • Ka La bypass & East road : 36,752 m3 • Total embankment soil : 81,138

The excavated soil will be utilized for constructing embankments; while the exceeding soil (12,211 m3) will be disposed at low land area in downstream of reservoirs that under managed by Di Linh District Public Work Exploitation Company. The transport distances from quarries to sites are around 200 to 250 m.

Approximate volume of construction materials

Approximated volume construction materials include 3,083 tons of cement; 267.5 tons of steel; 7,085 m3 of crushed stone; 11,886 m3 of sand; 5,760 m3 of free stone; 3,265 m3 of facing stone and other. The details of East and West reservoirs and upgraded roads have shown as following:

• East Reservoir of Di Linh: Embanked soil is 20,891 m3; reinforced concrete is 851 m3; cement concrete is 860 m3; sand is 1,780 m3; crushed stone is 1,030 m3; and steel is 68 tons.

• West Reservoir of Di Linh: Embanked soil is 6,010 m3; reinforced concrete is 533 m3; cement concrete is 400 m3; sand is 1,440 m3; crushed stone is 810 m3; and steel is 43 tons.

• Flood bypass in Ka La reservoir & roads in East reservoir: Embanked soil is 16,405 m3 in Ka La and 2,669 m3 in East reservoir.

Number and condition of vehicles and construction equipment

The subproject will employ 12 bulldozers 110 - 140CV and 28 excavators 0.8 - 1.25m3; 38 trucks from 7 – 18 tons; 16 concrete vibrators from 16 – 25 tones 08 cranes; 04 electrical generators.

Such vehicles and equipment should be in good conditions and subject to periodical verifications.

III.4. OPERATION AND MAINTENANCE ACTIVITIES

Maximum speed 15 km/h

Designed load < 6 tons

Designed vehicles density

50 vehicles/day-night

Maintenance activities

After completion, the People Committee (PPC) of Lam Dong province will be the agency who is generally responsible for operation and maintenance of the upgraded structures. DARD of Lam Dong will cooperate in planning O&M with related agencies. The Center of Public Works Operation & Management will directly operate & maintain the sub-project.

For operation:

(i) Manage operation and protection of headwork: manage operation



16

DESCRIPTION SUB-PROJECT DATA of reservoirs, water intakes, flood spillway; regularly open and close valves, and monitor water level etc;

(ii) Manage water on fields: Manage irrigation area, types of plants, water distribution plans, etc.

For regular maintenance

- Repair & cleaning dam crest;

- Dredge water intakes and outlets, canals, drains;

- Remove nets of animals & insects;

- Repair stone and concrete roofs of dam; culverts;

- Maintain machinery

For frequent maintenance (1/7 years)

- Repair/replace broken parts as frequently as needed in addition to planned maintenance periods;

III.5. RESETTLEMENT2 No relocated HHs, only land acquisition but affected people have voluntarily agreed to donate their land. 04 HHs in total that will be affected by the land acquisition; all are located in Di Linh town. The temporarily acquired land in vacant land is for borrow pits, material storage.;

Affected households 04 Severely affected households

0

Relocated households

0

Total acquired area (ha)

Temporarily = 6.0 Permanently = 0.06

Acquired agricultural land area (ha)

Temporarily = 0 Permanently = 0.06

Acquired forestry land area (ha)

Temporarily = 0 Permanently =0

Acquired aquaculture land area (ha)


Acquired residential land area (ha)


Acquired garden land area (ha)


Other acquired lands (ha)

Temporarily = 6.0 Permanently =0

III.6. THE SUB-PROJECT COST

Total subproject cost (VND)

Estimated 100,008,847,000 VND

2 According to Land Acquisition Completion Report of Sub-project, January, 2016



17

Figure 1 – Location of sub-project & components (East & West reservoirs, Kala Reservoirs)

Figure 2 – Residential areas surrounding & location of sub-project works in East & West Reservoirs of Di Linh



18



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IV. DESCRIPTION OF EXISTING ENVIRONMENT

Results of survey and baseline environment data of the subproject area collected and later updated by the safeguard policy consultant (EPC) in May 2015 are summarized as following:

Table 2: Baseline Environment Data

DATA ITEM SUBPROJECT DATA

4.1 PROJECT LOCATION

Town The subproject locates in the surrounding area of Di Linh Town (East and West reservoirs) and in Bao Thuan commune (Ka La flood bypass)

District Di Linh

Province Lam Dong

Geographical position

The sub-project is in Di Linh district of Lam Dong province, including 02 reservoirs in Di Linh Town and 01 reservoir in Bao Thuan commune.

- East Di Linh reservoir is 4.5 km away from downtown towards northeast, with coordinates as following:

From X: 11035’54” to X: 11036’19” From Y: 108004’47” to Y: 108004’55”

- West Di Linh reservoir keeps distances 2.3 km from downtown towards north—west, with coordinate as following:


- Flood bypass in Ka La reservoir is located 8 km away from downtown towards southeast, with coordinate as following:


4.2 NATURAL ENVIRONMENTAL CONDITIONS

Air quality

The subproject is located in the mountainous area in which there are neither industrial nor mining activities. Local roads are low traffic density. Two main potential air pollutant sources could be traffic vehicle in 02 national roads passed through and some agricultural product processing plants is operating at the center of Di Linh district.

As the results from ambient monitoring of Di Linh district’s3 indicated that air quality of Di Linh is good in general, excepted dust concentration (0.31 – 0.62 mg/m3) at the points close to high traffic road which were exceed the allowed limit (0.3 mg/m3) established by the National technical regulation on Ambient air quality QCVN 05:2013; (See more details in Annex 4a);

As monitoring results of 6 samples in approved EIA4, which prepared to meet the requirements of Vietnam government, show that all 6 analyzed indicators of air quality are below permission values stated in QCVN 05:2013/BTNMT (See more details in Annex 4b ). It indicates that ambient air quality of the

3 Air ambient quality monitoring conducted by Di Linh’ Division of Natural Resource and Environment for 5 samples

of 7 air quality indicators

4 The monitoring locations included: NM1 : Di Linh West Reservoir Site No1; NM2 : Di Linh West Reservoir Site No2; NM3 : Ka La Reservoir - By pass road No1; NM4: Ka La Reservoir - By pass road No2 (Starting point); NM5: Di Linh East Reservoir ( access road) and NM6 : Di Linh East Reservoir – at the dam.



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subproject area is still good. ( dust =0.018-0.026 mg/l)

Noise and vibration

The noise and vibration pollution was observed at the locations which are close to high traffic volume and agricultural product processing manufactures. But all of them are located far from subproject location.

As monitored results of 5 location of Di Linh Division of Environmental and Natural Resource, show that noise and vibration level is much lower allowed value in national standard.

Additionally, 6 samples have been collected and analyzed during EIA preparation (Dec 2015) as the same air quality monitoring locations, and the result indicated noise level of the subproject area is acceptable as much lower than allowed limits by QCVN 26:2010/BTNMT (See more details in Annex 4b).

Climate and natural disasters

The subproject area is influenced by the tropical monsoon and plateau tropical monsoon climate. The climate is divided into two distinct seasons:

- The rainy season is from May to November (accounting for approximately 80-90% of annual rainfall that on average is 1553 mm).

- The dry season is from December to April (accounting for approximately 10% to 20% of annual rainfall).

According to meteorological data from Bao Loc station:

Temperature of these areas as follows:

� Average annual temperature: 20 - 210C

� The highest temperature: 30 - 310C (May, June, July)

� The lowest temperature: 100C (Dec., Jan.., Feb.)

Air humidity:

� Humidity average /year: 86%

� The highest humidity month: 90-92% (June – Sept.)

� The lowest humidity month: 79 – 83% (Jan. – Apr.)

Sunshine hours:

� Annual average number of sunshine hours is above 2,330 hours and mostly in the dry season (Dec. – April) and fewer sunshine hours in the rainy season (May – Nov.);

� The highest number of sunshine hours per month is 260 hours.

� The lowest number of sunshine hours per month is 132 hours.

Wind: wind in area is depended on season and have two types of wind one directed Northeast and the other South-west.

� Average wind speed is 2.3m /s;

� The maximum speed is 28 m/s;

Natural Disasters: Main natural hazards in the Central Highlands and in Lam Dong province consist substantially of droughts in the dry season, floods & flashfloods in the rainy season. Other occasional hazards occurred in the past, such as landslides, extreme wind, hail, extreme rainfall and extreme hot days. Because of the geographical location of the Highlands Region, directly impact of tropical storms in Lam Dong province, including Di Linh district, is low. However, tropical storms in East Sea have had some negative impacts on local climate and caused some extreme rainfalls such as in years of 1987, 1994, 1999 and 2000;

The extreme rainfalls with high intensity caused landslides in



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mountainous/hilly areas such as Tan Nghia commune in 2013, 2014; Tan Thuong commune 2013 and in Da Huoai river banks 2014 etc. of Di Linh district.

Droughts have occurred in Lam Dong province but with less extent than those in other Highland provinces, because of its particular microclimate. However, several droughts had been recorded in the recent past, for instance in 2002 that had a severe impact in the areas of Bao Loc, Bao Lam, Da Huoai, Da Teh, Cat Tien districts, resulting in insufficient water for irrigation. The drought in 2015 affected 217 reservoirs in Lam Dong province, including Ka La reservoir, also depriving many of such reservoirs of sufficient water for irrigation.

Topography and soil

The subproject area is dominated by plateaus and mountains covered by plantation/natural forest and the terrain are topographically complex. The main plains are mostly located along National Highway No.20 and other main roads of district.

As results from geological tests, the soil in subproject area include 04 layers: (1) top layer, clay with sand & stone, organic compounds, and vegetables is from 0.3m to 0.4 m of thickness; (2) clay with brown-red sand & stone, grey-brown stone is from 2.5 to 5.2 m of thickness; (3) clay with a little brown-red stone, grey-brown stone is from 0.9 to 9.5 m of thickness; and (4) grey and grey-black basalt stone is from 2.5 to 11.3 m of thickness;

The sub-project area has 07 soil categories: alluvial soils (1,980 ha); swampland & peat land (14 ha); grey degraded soils (2,071 ha); basalt soils (5,306 ha); yellowish red soils (117,414 ha); valley soils (1,336 ha); and humid ferrasols (27,367 ha).

Surface water resource

The surface water resources include rivers, small streams and reservoirs. The area is crossed by the Dariam River (length of 26.6 km); the Da Dung River (19.4 km); Dargna River (9.3 km). Reservoirs include Ka La, Ka La 2, Ka La 3, East Di Linh, West Di Linh reservoirs and Reservoir 109; etc. The above rivers are upstream of Dong Nai & La Nga Rivers and are quite rich in water;

Local people are exploiting the surface water resources for both production (mainly agricultural irrigation) and domestic purposes.

Surface water quality

Ten samples of surface water had been collected in sub-project areas of 6 communes (Dinh Trang Thuong, Tan Chau, Hoa Ninh, Tam Bo, Dinh Lac and Gung Re) and Di Linh Town and 14 parameters have been monitored by Center of Environmental Technology. In addition, 6 other samples of surface water have been collected, analyzed 15 parameters by Vinacontrol in December 2015 during EIA preparation as per government requirements.

Both results indicated that the quality of surface water in these areas is good for irrigation purpose. Most monitored values were within the standards for domestics purposes, except for Coliform value of Hoa Ninh & Gung Re and West Di Linh reservoir samples that exceed the allowed limits, as established by National Technical Regulation on surface water quality QCVN 08:2015/BTNMT of MONRE (at Hoa Ninh Commune Coliform bacteria = 24,000 MNP/100ml). (See more details in annex 4a & 4b).

Underground water

Groundwater in sub-project area is normally found at the depth of 3.3 m to 4.7 m. Local people exploit it for domestic purposes

Two (2) samples of ground water with 5 parameters have been collected and analyzed by Vinacontrol in December 2015. The result indicated that the



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quality of ground water in the subproject area are within allowed limits as compared with National Technical Regulation on ground water QCVN 09: 2015/BTNMT

Flooding Through site visit and public consultation meetings, it has been learned that extreme rainfalls and high intensity rains could cause rivers’ flooding, however, storage capacity of the Di Linh reservoirs could help to reduce flooding downstream in raining seasons. Unfortunately, no data on floods has been recorded in Di Linh. However, no households are living in flood-exposed areas of Dariam crossing Di Linh town.

Terrestrial fauna and flora

The main flora in the sub-project area are agricultural crops (tea, cashew, paddy, cassava, maize, beans, coffee, pepper, rubber and more.) in which, tea and coffee are the main agricultural products;

Terrestrial fauna in the area includes cattle, pigs, chickens, etc.;

No protected wild animal are present in the area.

Aquatic fauna and flora

Aquatic fauna and flora features could be only found in the Dariam river, its tributaries, small streams, Di Linh East & West reservoirs, Ka La reservoir as well as canals system of such reservoirs. However, there are no specific available data of aquatic flora and fauna of these water bodies. Through field visits, it has been learned that aquatic fauna include freshwater fish, shrimp and others, while aquatic flora include water hyacinth, algae and various other grass.

No aquatic fauna & flora species are listed in the Red Data Book of Vietnam.

Protected areas There is no ecological/protected area within or near the sub-project area in East and West reservoirs of Di Linh town.

The Natural Reservation Area of Song Mao (Mao River) is the nearest to the subproject area, but is located as far as 35 to 40 km from Di Linh town.

4.3 ENVIRONMENTAL AND SOCIAL CONDITIONS

Unexploded bombs, mines

Checking of unexploded bombs and mines (UXO) to ensure safety during construction of the sub-project was completed in November 2015.

Land use

The land use of sub-project areas in 2013 are as following:

- The land use of Di Linh district: o Total natural land: 161,463.84 ha o Agricultural land: 38.25% o Forest land: 53.77% o Specialized land: 1.7% o Residential land: 0.72% o Others: 5.56%

- The land use of Di Linh town: o Total natural land: 1,826.63 ha o Agricultural land: 76.38% o Forest land: 0% o Specialized land: 10.79% o Residential land: 7.51% o Others: 5.32%

- The land use of Bao Thuan commune: o Total natural land: 23,141.62 ha o Agricultural land: 11.15%



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o Forest land: 84.34% o Specialized land: 1.02% o Residential land: 0.2% o Others: 3.29%

Adjacent land of the sub-project components include: 250 ha of coffee plantations and 50 ha of tea plantations. The area in southeast of Ka La flood bypass is forest plantation managed by local people in Bao Thuan commune.

Residential area near the subproject

Residents in the sub-project area mostly inhabit the center of the communes, especially in Di Linh town, or in areas along the main roads. The shortest distance from residential areas is 20 - 30 m (include areas along National roads No.28, No.20 and other roads of Di Linh town connecting to West & East reservoirs). While around reservoirs the closet distance from residential areas to reservoirs is about 300 – 500 m. Residential areas No.1, No.2, No.3, No.8 and No.9 are surrounding West reservoir, while residential areas No.6, No.7 and No.10 are close to East reservoir.

There is no residential area close to Ka La reservoir and the flood by-pass; the nearest residential area is 1 km distant to the reservoir and the by-pass.

Rural infrastructures

Road network: Di Linh district has a convenient road network connecting its center (Di Linh Town) to other communes, other provinces (Dak Nong, Ninh Thuan – Binh Thuan) with National Highways No.14, No.20, No. 27 and No.28 passing through. This network creates interconnection and promotes socio-economic development.

Irrigation system: The main economy of Di Linh District is agriculture, it justifies the construction of 6 reservoirs. Presently, these systems are degraded since all of them were built 30 years ago (Dong Do builtin 1964, Ka La 2 & 3 in 1974, West Di Linh in 1982, East Di Linh in 1986). Capacity of these 6 reservoirs is now insufficient to serve their agricultural areas (75% of district) and endanger the safety of local people during the flooding season.

Electric Power & telecommunication: Each commune of the district has its own post office, national grid has reached all the communes of the sub-project and used by 80% of locals.

Education: in 2014, 21,333 students in Di Linh attended elementary and high schools: 53.05% of them were female and 46.95% male.

Health care: The district center has 01 district hospital, while each commune (17 in total) and 01 town have their own clinic center.

Agriculture and aquaculture

At the end of 2013:

- Di Linh district had 61,814.8 ha of agricultural land covering 38.25% of the total land while 206.1 ha is utilized for aquaculture in the whole district;

- Di Linh Town has 1,826 ha of agricultural land, 76.38% of which is not forest-land, a small experimental aqua-product is developed in Di Linh for sturgeon fish;



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- Bao Thuan Commune has 23,142 ha of natural land, 11.15% of which is agricultural land and 84.34% is forest-land;

o Coffee,tea and flood-rice plantations are the main contributors to the GDP of the Di Linh town and Bao Thuan commune. Di Linh town, because of its advantageous geo-location, is also a trading post of agricultural products;

o The feeding sector for pigs, cows, goats, chickens, ducks and other species is being developed.

Population

Statistics by the end of 2013 of Di Linh district:

- Population: 158,000 inhabitants, with 20,607 people living in urban area and 137,393 in rural area;

- Population density: 95 persons/km2; - Population growth rate: 1.49% - Minorities: 35.6% - Poverty rate: 9.76% - Labor force: 91,774 people with 46,529 male and 45,215 female; - Average of labor force: 2.38 people/household;

Ethnic minority groups

Most people living in the sub-project area are Kinh (immigration from the North) and some local ethnic minorities (including Ede, Mnong, Nung, Tay, Mong, Thai, etc.). The minority rate of Di Linh district was 35.6% in 2011.

Livelihood

Di Linh district:

- Economic structure: agriculture is the main economy of the district (62.5%); industry and services represent 21.2%, followed by construction 16.3%. The economic growth rate is 13.3%, with pro-capital GDP of 24 million VND/year (2011);

- The total income of District government was VND 311.538 billion; and expenditure was VND 285.868 billion;

- Poverty rate reduced by 3.17% from 2010 to 2011; the poverty rate in minorities reduced by 5.98% from 2010 – 2011, to a combined percentage of 18.43%;

- Educated labor force consisted of 2,648 persons in 2011.

Cultural and natural heritages

In the subproject area, no cultural and natural heritages have been recorded.

Public health Each commune has one communal health center, which can diagnose and treat simple and most common diseases such as diarrhea, red eye, respiration and skin diseases.

Traffic and transportation

In the subproject areas (around the reservoirs), there are only roads with very low traffic density which mostly serve domestic traffic of local people. Excluded National roads No.20 and No.28 passing through, the traffic density on these roads is quite moderate;

The main means of transportation include pedestrians, bicycles and motorcycles;



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V. ENVIRONMENTAL IMPACT SCREENING

5.1 Positive impacts

Implementing the subproject "Repairing, upgrading Di Linh western and eastern reservoirs, flood bypass of Ka La reservoir and productive rural infrastructure in Di Linh district, Lam Dong province" will bring positive impacts on environment and society as follows:

- Increase water surface and stabilization of reservoirs will create positive impacts on local climate, especially increasing moisture in dry season of the subproject area ;

- It will ensure additional storage of water for irrigation and for potential industrial and valuable plants in Di Linh district, especially during the dry season, improving the growth of plants and trees as well as improving productivity and related income of local people;

- It will also contribute to stabilizing groundwater resources around reservoirs when water can be stored in reservoirs;

- It will reduce potential emergencies from flood hazards that can be caused by poor functioning of old dams;

- The development of rural road infrastructure improves the traffic and links residential to production areas, reducing burden and cost in transporting materials, fertilizers and agriculture products. It also creates favorable conditions for mechanizing agricultural production, bringing scientific advances into the producing areas that will induce cultivation that is more intensive and subsequent increased crop yields. The sub-project also reduces cost of cultivation and labor and improves incomes of local people in the subproject area;

- The sub-project will also contribute to improving living conditions, livelihoods and environment in sub-project areas, and to reducing poverty.

5.2 Negative impacts

However, the sub-project could also create several negative impacts, especially during construction phase, which need to be managed through appropriate mitigation measures. The negative impacts from the subproject could be summarized in the following table:

Table 3: Environmental impact screening

Impacts

Potential Impact

Brief description Yes/ no

Minor or significant

Positive or

negative

Temporary or

permanent

I. Pre-construction phase

Risk when detecting unexploded ordnance

UXO removal activities were completed in 2015

UXO can be remained in the subproject areas where had been suffered from war. Unexploded items may create safety risk for local people and workers during

construction phase. However, unexploded ordnance (UXO) was carried out by Corporation 315 – Ministry of National Defense & completed in November 2015

Impacts on HHs due to site

Yes Minor Negativ

e Both Temporary

Description: Permanent land acquisition: Reservoir: Raising dam crest of 2 reservoirs will



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Impacts

Potential Impact



Positive or

negative

Temporary or

permanent

clearance (land acquisition)

&

Permanent

submerge 2.81 ha of agricultural land (West reservoir: 1.0 ha; East reservoir: 1.81 ha). This land area is part of reservoir area & managed by Di Linh Irrigation Management Company. Then it will not create any negative impacts on local people due to land acquisition.

Upgrading rural road: 9 km of rural roads will be upgraded on existing routes, so land acquisition is small, only 600m2 of land will be acquired. This area is agricultural land, belonging to 04 households in Di Linh town and share about 2 – 5% of their total holding land, the acquired land is mostly fence, which will not cause any impacts on cultivation activities of these household. They have voluntarily agreed to donate their land for sub-project.

Temporary land acquisition: Temporary land acquisition of the sub-project is estimated 6.0 ha (including 2.7 ha for West reservoir and 3.3 ha for East reservoir) for reservoirs surface extension, workers’ camps, materials and waste storages and handling but it consists of vacant stretches of land belong to reservoir management agency. The temporarily acquired land will be returned to its original status (vacant) after construction.

Affected object(s): 04 HHs in communes of Di Linh town in Di Linh district.

Affected level: Social impact due to land acquisition is minor due to i) acquired land area is fence; ii) not create any impacts on cultivation of these household; iii) those household agreed to donated their land and vi) many local HHs will get long-term benefits from the sub-project.

Location: Garden lands of 04 HHs along upgraded road in East reservoir (Di Linh town).

Time: The impact of land acquisition to 04 HHs is permanent .

Lose natural /plantation forest due to improving the water level of reservoirs

Yes Minor Negative Permanent

Description: The sub-project will increase normal level water (approximately +0.4 m) of East and West reservoirs. A total of 2.81 ha of land around such reservoirs (1.0 ha in East reservoir and 1.81 ha in West reservoir) will be submerged when reservoirs are filled. However, those areas are uncultivated land, no forestland.

Affected object(s):



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Impacts

Potential Impact



Positive or

negative

Temporary or

permanent

- There is no impact on forestland, only small shrubs without economic value are growing in the stretches that will be cleared for reservoirs occupation.

- No impact on agricultural land of local people.

Affected level: This activity of the sub-project will not affect any forest, while impact on vegetation around reservoir is insignificant and does not reduce commercial value.

Location: At East and West reservoirs of Di Linh district.

Time: Permanent occupation.

Reducing crop productive due to inappropriate construction plan in term of time

Yes Moderate Negative Temporary

Description: Although the construction time will be only 12 months, it can potentially cause negative impacts on crops of local people if the construction is taking place contemporarily with cropping activities. The construction activities on reservoirs could lead to shortage of water for irrigating if withdraw water plans on reservoirs are not consider to cultivation schedules of local people. The shortage of irrigation water could cause reduce crop productive or even cultivation activities could be not implemented. This could result in negative impacts on the socio-economic situation of local people. In fact, the construction of reservoirs and roads has to be mainly implemented in the dry season– the same period of agricultural activities. Therefore, this potential impact needs to be managed and mitigated carefully.

Main crops in the project area is coffee and tea

Area and productivity of crops in the subproject area Crop Area ( ha) Productivity

Ton/ha) East Reservoir West Reservoir Coffee 80 170 3.8 Tea 20 30 2.3 Total 100 200

Both cofee and tea need to irrigate water during dry season from December to April in next year

If the shortage of irrigation water could cause reduce crop productive about 30-40 % estimated ( Reference: Lam Dong : Drought damage 60.000 ha of coffee http://en.vietnamplus.vn/lam-dong-drought-damages-60000-hectares-of-coffee/73899.vnp: )



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Impacts

Potential Impact



Positive or

negative

Temporary or

permanent

Affected object(s):

- Crops irrigated from East and West reservoirs & canals of Di Linh;

- Local peoples in Di Linh Town & Bao Thuan Commune

Affected level: The negative impact described is considered moderate due to flow diversion construction method will be apply to ensure sufficient water irrigation for cultivation activities

Location: Areas where 100ha of east Di Linh town and 200ha in west of Di Linh town where are irrigated by water of East and West reservoirs of Di Linh .

Time: Temporary, only during preparation and construction phases.

II. Construction phase

Landslide, soil erosion or sedimentation

Yes Minor Negative Temporary

Description Excavation work, embankment construction and construction materials (soil, sand, stone etc.) storage in East & West Di Linh reservoirs and its canal, bypass could result in debris falling into the reservoirs and irrigation canals in downstream of the reservoirs. These could cause increasing sedimentation in the canal bed, obstructing water flows, which may affect rice fields.

Moreover, land slide and soil erosion could appear since vegetable covers are removed and the process can be serious during rainy season. The highest risks location of land slide and soil erosion could be listed as below:

� Erosion of East & West reservoirs’ slopes

� Bypass in the Ka La reservoir

� Erosion of banks of aqueduct built to cross over these streams;

� Borrow pit areas

Affected object(s):

- Slopes of reservoirs, roads;

- Water surface sources of East & West reservoirs of Di Linh & Ka La reservoir;

- Crops being irrigated by sub-project canals;

Affected level: This impact is minor due to i) the



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Impacts

Potential Impact



Positive or

negative

Temporary or

permanent

material sources are mainly taken from licensed borrow pits; ii) volumes of excavation and embankment are relatively small and scattered along roads & reservoirs in Di Linh town and Bao Thuan commune; iii) excavation will be mainly taken during dry season. However, these impact still needs to be properly managed and controlled to reduce surface water pollution.

Location: slope areas at the location are constructed roads and reservoirs in East, West Di Linh town and at Ka La reservoir;

Time: Temporary during the construction phase;

Polluted surface water


Description: surface water on Di Linh western and eastern reservoirs, streams and other small streams (such as small canals/springs of Dariam river passing Di Linh town along National road no.20) in the subproject area could be polluted due to construction activities. Which include (i) washing construction materials (stone, sand, etc.) and machinery; (ii) domestic wastewater of workers in their 03 camps; (iii) grease and oil from machinery maintenance and (iv) rainwater runoff passing through constructional areas/activities during rainy days.

Affected object(s): Water surface sources such as East, West and Ka La reservoirs as well as irrigation canals nearby or even springs of Dariam river passing Di Linh town;

Affected level: The impact level is moderate, due to i) the construction activities will be scattered in the larger areas, 3 camps will be located at difference place (East, West reservoirs and Ka La flood bypass) with small workers will be mobilised on the site (estimated 100 at maximum); ii) as scheduled, excavation activities will be taken place in dry season, and about 70% of total excavated soil will be reused and iii) generations of domestic waste-water (less than 10 m3/day), grease and engines’ oil are limited; iv) water in reservoirs will be withdraw before excavation. But appropriate mitigations need to be implemented and monitored to minimized impacts .

Location: East, West, and Ka La reservoirs and canals nearby as well as small streams connecting to Dariam river passing across Di Linh town;

Time: Temporary during the construction phase.



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Impacts

Potential Impact



Positive or

negative

Temporary or

permanent

Noise and vibration


Description: Upgrading dams and roads in the sub-project will cause noise and vibration from construction equipment, such as mobilizing and operating concrete mixers, bulldozers, material transporting trucks, which may affect residential areas along the upgraded roads. In addition, the exploitation & disposal of soil as well as construction waste in borrow pits and disposal site (an area of 6 ha of temporary areas) will create noise and vibrations.

Affected object(s):

- Residential areas close to reservoirs to be upgraded and especially roads in Di Linh town & Bao Thuan commune;

- Residential areas along main transportation roads of the sub-project in Di Linh town, Bao Thuan and Gung Re commune.

Affected level: This impact is minor, due to: i) very few equipment will be mobilized on the site; ii) borrow pits and disposal site are located in vacant land; iii) there are several households living about 400-500m away from East and West reservoirs; iv) no household is living along Ka La flood bypass, the nearest one is about 1 km away, and no households located close to disposal areas/borrow pits.

Location: Residential areas along connecting roads, sub-project areas, construction sites in Di Linh town and Bao Thuan & Gung Re communes.


Air pollution

(dust and gas emission)


Description: Construction activities will generate dust, air pollutants, particularly during dry/sunny days. Dust and other air pollutants could also be generated from excavation activities, waste disposal activities, electrical generators, trucks or mobile concrete mixers. However, the main air pollutants as NOx, CO, SO2, etc. will be minor since the number of construction equipment mobilized on the site will be small and distributed in the scattered large areas of intervention and construction sites/borrow pits and disposal areas keep distant from residential areas. Therefore, the main issue is dust which will be released from excavated surface and generated from operation of trucks which need to appropriate manage to reduce impacts on local people



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Impacts

Potential Impact



Positive or

negative

Temporary or

permanent

Affected object(s):

- Residential areas close to reservoirs to be upgraded and especially living and travelling along roads in Di Linh town and Bao Thuan commune;

- Residential areas along main transportation roads of the sub-project in Di Linh town, Bao Thuan commune.

Affected level: This impact is estimated as minor due to very few equipment will be mobilized, the construction sites, borrow pits and disposal areas are located in rural areas where have many opened space for pollutants to dilute.

Location: Residential areas in communes along constructed roads and transportation routes including Di Linh town and Bao Thuan & Gung Re communes.


Solid waste and hazardous waste generation


Description: Solid wastes generated during the construction phase include:

(i) Non-toxic waste: included: i) domestic waste from daily activities of workers is mainly food waste. It is estimated that approximately 10.95 tons will be generated during the whole construction period (12 months); ii) Construction wastes: include abundant & discarded soil, sand, stone, debris, steel, etc. are estimated around 29,619m3. The generation of solid wastes could potentially pollute soil, surface water and even cause diseases (by food waste) for workers if not properly handled and disposed;

(ii) Hazardous waste: lubricating oil, chemicals mops/duster cloth, fuel and chemical’s containers is a generated maintenance activities or use of hazardous material. If these waste will be properly managed which could cause effect on water and soil quality.

Affected object(s):

- Air quality in and around 3 worker camps;

- Water quality of surface water bodies nearby worker camps as well as local productive fields nearby construction sites;



32

Impacts

Potential Impact



Positive or

negative

Temporary or

permanent

- Workers living in the camps

- Road users.

Affected level: This impact should be minor due to: i) worker camps will be separated in three difference (only 100 people in three camps; ii) larger volume of excavated soil will be utilized; iii) locations borrow pits (02 borrow pits in East and West reservoir and 01 in Gung Re commune), disposal areas are far from residential areas; iv) very small equipment will be mobilised on the site, and demand of hazardous material used on the site also very limited.

Location: 3 worker camps and all sub-project construction sites in Di Linh town and Bao Thuan commune.

Time: Temporary during construction phase.

Soil pollution Yes Minor Negative Temporary

Description: Soil conditions in the subproject area could be affected by (i) domestic wastewater from 03 worker camps; (ii) grease drops from construction machinery maintenance and (iii) domestic and construction waste (solid waste). Soil can be also be negatively affected by distributing materials and dropped concrete from construction site. If those wastes are not collected and treated in proper manners, these can contaminate the soil, especially the wastewater with high contaminants, grease and other dangerous substances.

However, the total number of workers is limited to about 100 in 03 worker camps, and the amount of wastewater generated is estimated at approximately 10 m3 per day (100 liters/p x 100 persons); the hazardous substance usage and waste are very minor since the demand of these substance is quite low.

Affected object(s):

- Soil quality of cultivated land along upgraded roads, 3 borrow pits, in construction sites & in 3 worker camps;

- Local people in the beneficiary areas of Di Linh town & Bao Thuan commune.

Affected level: This impact is minor but still need to be managed appropriately as requested in the waste management section.



33

Impacts

Potential Impact



Positive or

negative

Temporary or

permanent

Location: The areas in East and West reservoirs, area along Ka La flood bypass and 3 worker camps as well as in 3 borrow pits.

Time: Temporary during the construction phase

Local flooding Yes Minor Negative Temporary

Permanent

Description: Constructing roads and drainage culverts may block locally water flows and cause flooding especially in rainy seasons. Design may be inappropriate or contractor will not fully follow it and the technical specifications, which could lead to materials blocking existing intakes, culverts and/or be dropped in canals. The discarded construction material and other wastes dropped into small streams in the subproject area can also block the water flow. This could have an impact on crops..

Affected object(s):

- Crops of local people in Di Linh town of land irrigated by East reservoir;

- Local people in beneficiary areas of Di Linh and Bao Thuan commune.

Affected level: Minor impact, due to construction schedule have been planned to take place mainly in the dry season for headwork of East and West reservoirs. Therefore, the possibility of flooding by blocked water-flow seems is rather low

Location: Road and culverts along Ka La food bypass of Bao Thuan commune and East reservoir of Di Linh town to be upgraded.

Time: Temporary during the construction phase, but subsisting in case there are errors in design.

Unsafe for travelling and business during the road construction (Traffic safety)


Description: Barriers installed by a contractor to upgrade roads of Ka La flood bypass and in East reservoir and the material transported by machinery present some hazards such as (i) traffic accidents, especially involving the elderly, children and loose cattle and (ii) difficulties in transporting goods. However, the volume of construction activities is quite limited, and implemented throughout a large area, and traffic volume on these roads is quite low. Furthermore, transportation on dam crests will not be restricted during construction.

Affected object(s): Local people in the sub-project area and people traveling through upgraded roads, dam crests during construction



34

Impacts

Potential Impact



Positive or

negative

Temporary or

permanent

phase.

Affected level: This impact is considered as minor but adequate care should be applied to avoid occurrence of any traffic accidents.

Location: Along the upgraded roads in Ka La flood bypass and East reservoir of Di Linh, and on inter-communes roads that local people regularly use for their convenience.


Impacts on ecology

Yes Minor Negativ

e

Temporary

& Permanent

Description: No natural reserves, national parks, areas of important ecological value are recorded in subproject area. A forest close to Ka La flood bypass is a coffee plantation whose present eco-balance will not be badly affected by construction activities. 3 borrow pit areas in East & West reservoirs and in Gung Re commune are vacant lands in which only small shrubs without commercial or scientific values are growing. Therefore, the exploitation of soil from such borrow pits will not have any noticeable negative impact on those lands or nearby plantations.

Affected object(s):

- Vegetation covering the construction affected areas around East & West reservoirs, upgraded road in Kala flood bypass as well as 3 borrow pits;

- Aquatic flora & fauna in all upgraded reservoirs of East, West and Kala.

Affected level: Minor impact, according to a site survey, areas along upgraded roads and reservoirs in East and West reservoirs and Ka La flood bypass are covered with non-valuable grass/shrubs. Only 600 m2 of residential fenced land of 4 HHs will be permanently occupied. Aquatic species living in East, West and Ka La reservoirs are of little economic value and in any case will not be significantly affected. Furthermore, the impact will only last a short time and the whole ecological environment of the affected area will recover to its original conditions after works completion.

Location: Along the upgraded road in Ka La flood bypass, and in East and West reservoirs.

Time: Temporary during site clearance & construction.



35

Impacts

Potential Impact



Positive or

negative

Temporary or

permanent

Impact/ damage on infrastructures


Description: According to field surveys, there is no water supply network, no drainage pipe along roads and the electrical lines is sufficiently far from the roads, thus the public infrastructures could be impacts is rural roads which will be used for transport material and wastes. The existing communal roads are made of soil (embankment) and concreted or soil surfaces. Most of these roads are already in degraded conditions that makes traffic is rather difficult. Most roads are narrow and designed for loads of less than 5 tons at maximum. Roads and bridges connecting the sub-project have also designed for small loads too. So, unless the weight of loaded vehicles transporting material to and from work-sites are scrupulously checked and appropriately limited to specifications, these roads and bridges may be damaged.

Affected object(s):

- Road infrastructure utilized for sub-project construction;

- Local people in the sub-project area in Di Linh town and Bao Thuan commune;

- People traveling along roads used for sub-project’s construction.

Affected level: Minor impact only, but construction contractor needs to well prepare construction and transportation plan to minimize possible negative impacts, the contractor should also be bound to repair damaged infrastructure to their original condition if this situation will occur.

Location: All roads/sluices or bridgesused by the sub-project in Di Linh town and Bao Thuan commune.


Social disturbance by worker gathering

Yes Minor

Positive &

Negative

Temporary

Description:

Negative impacts: included: i) diseases such as sore eyes, cholera, flu and other respiratory diseases from workers and spread to local people in the subproject area; ii) social problems can appear such as gambling, drug addiction, prostitution, violence, conflict amongst workers, or among workers and local people. There is also a risk of sexually transmitted diseases (STD) from 100 workers, including HIV/AIDS that needs to be considered. However, these workers will be split in 3 camps and the construction time is limited to only 12



36

Impacts

Potential Impact



Positive or

negative

Temporary or

permanent

months.

Positive impacts: an increase of labor force in commune could temporarily induce some positive economic support for local trading market.

Affected object(s):

- People in Di Linh town and Bao Thuan commune;

- Business Di Linh town and Bao Thuan commune;

Affected level: Both positive and negative impacts are minor. Workers need to be managed and controlled to eliminate negative impacts;

Location: Di Linh town and Bao Thuan commune & in 03 worker camps;

Time: Temporary during construction phase;

Impacts on health of local people and construction workers


Description: Dust and noise generated by construction activities, transport vehicles of soil in 03 borrow pits and machinery such as concrete mixers, bulldozers, directly affect health of the workers and the local communities, especially in case of safety regulations not being properly complied with.

The high risks of health problem and safety for workers may also come from unsafe living conditions, unsafe food and water supply and inappropriate personal protection equipment and conflict between workers and road vehicles, traffic accidents involving people passing through construction places

However, the number of construction workers (100 at maxinum) as well as the volume of machinery and equipment used is small and scattered in 03 work camps. Construction activities for road and canals are not complicated; workers are required to follow environment and labor safety measures, therefore probability of accidental occurrence is estimated as rather low.

Affected object(s):

- Workers at construction sites;

- Residential areas along the roads used for transport of materials and near the construction areas of Di Linh town and Bao Thuan & Gung Re communes.

Affected level: This impact is of moderate level, but because the importance of preserving human



37

Impacts

Potential Impact



Positive or

negative

Temporary or

permanent

health, lives of locals and workers, adequate management measures need to be implemented and supervised.

Location: People in Di Linh town, Bao Thuan and Gung Re communes and construction workers of sub-project.


Impacts around the mines of soil, stone and sand


Description: According to the FS report from Lam Dong PPMU, the soil for embankment construction will be taken from the borrow pits close to East, West reservoirs and in Gung Re (5.0 km away from sub-project sites). Sand will be purchased from sand mine in Bao Thuan commune (8.5 km away); stones will be purchased from Tam Bo stone mine in Tam Bo commune (25.5 km away). The exploitation and use of materials could generate dust, noise, polluting gases, as well as disturb residents. However, the borrow pits are located in uninhabited areas, while sand and stone mines are only exploited when they are licensed and managed by local DONREs;

Affected object(s):

- Residents along transportation routes;

- Workers of sub-project working in & people living, working nearby borrow pits in East & West reservoirs and in Gung Re commune.

Affected level: This impact is minor.

Location: 03 borrow pits, 01 sand mine in Di Linh town and Bao Thuan commune, (Tam Bo borrow pit is under the management of Division of Environmental & Naturual resources of Duc Trong DPC).

Time: Temporary during construction phase

Impact on existing irrigation systems


Description: The constructions are taken place on East and West Reservoirs of Di Linh town, which are serving approximately 300ha of irrigation area. Construction activities could affect water supply to the above-irrigated area if mitigation measures will not implemented properly. However, construction activities of reservoirs & head-works are planned to be achieved before the month of June (before the rainy season); during the construction period, construction flow diversion and other appropriate construction methods are proposed to ensure that



38

Impacts

Potential Impact



Positive or

negative

Temporary or

permanent

sufficient water is available for irrigation and for construction needs.

Affected object(s):

- Crops irrigated by East and West Di Linh reservoirs;

- Local people in beneficiary areas in Di Linh town.

Affected level: This impact is moderate. The upgrading is important for the irrigation of downstream area of the 2 reservoirs. However, construction activities will be in 12 months and their main impact is only in the dry season and construction flow diversion & construction method will be applied to ensure irrigation water supply for cultivation activities.

Location: East and West reservoirs of Di Linh town and theirs downstream areas.

Time: Temporary during construction phases

Cultural objects or graves found

No

Minor if such

objects/

graves have been found

- Temporary

Description: Currently, there is neither object of cultural significance nor grave in the areas of construction of the sub-project were recorded. However, if any cultural objects and/or graves found during excavation work, the contractor is compelled to immediately suspend works in that area and notify the State agency responsible for culture, sports and tourism for prompt action/measures.

Affected object(s): Potential cultural objects/graves within construction areas

Affected level: Currently is no impact, but if occurs the impact is estimated minor.

Location: Construction areas & borrow pits in Di Linh town, Bao Thuan commune & Gung Re commune.

Time: This impact is temporary during construction phases.

Environmental recovery activities

Yes Minor Negativ

e & Positive

Temporary and Permanent

Description: The construction contractor needs to restore damaged environment to its original status as well as that of existing structures damaged during construction activities. If environmental recovery activities will not be properly implemented, natural environment of the subproject area may suffer from: (i) loss of trees along upgrading roads and loss of trees & vegetation around the upgraded reservoirs and three borrow pits; (iii) loss of some



39

Impacts

Potential Impact



Positive or

negative

Temporary or

permanent

aquatic flora & fauna species during upgrading west and east Di Linh reservoirs because of water withdrawal; (iii) changing environmental landscape at three borrow pits and disposal areas; and (iv) downgrade of existing public infrastructures. However, the aquatic species could easily be re-grown from the same species largely available in upstream; trees to be cut down are not rare and/or of rare species needing special preservation. The above areas are of rather limited extension and the recover work limited to the actual parts dug and very close surroundings.

Affected object(s):

- Local infrastructure used by the sub-project Local people in the sub-project area & people traveling through the roads need to be restored;

- Landscape of construction areas and reservoirs; Borrow pits in East, West reservoir and in Gung Re commune.

Affected level: There will be positive and negative impacts, but both are minor.

Location: East and West reservoirs of Di Linh town and upgraded Ka La flood bypass.

Time: Temporary during construction phases.

III Operational phase

Drains, culverts obstructing or flooding because of untimely dredging


Description: Culverts and drains are likely to be obstructed by flowing rainwater that sweeps soil, sand and stones due to untimely dredging. This will cause water logging and temporary inundation in several low-lying places.

Affected object(s): Productive fields along roads and local inhabitants

Affected level: This impact is insignificant due to maintenance activities include culverts dredging that will be implemented by The Center of Public Works Operation & Management of Di Linh District; Location: Along culverts and drains on downstream slope of dams.

Time: During the operational phase

Erosion or land side

Yes Minor Negative Temporary Description: High intensity rain can cause landslides, erosions and sedimentations in reservoirs, obstruct drains and culverts, especially



40

Impacts

Potential Impact



Positive or

negative

Temporary or

permanent

in heavy rain days.

Affected object(s):

- Local people in the sub-project area;

- Water quality and aqua-species in reservoirs

Affected level: Insignificant and stabilized soon after when vegetation grow in downstream bank.

Location: drains, slopes of dams, culverts.

Time: During the operational phase, with less impact after soil is compacted and vegetation grows.

More traffic accidents


Description: After upgrading the roads and the surface of the road is in good conditions, the traffic density and driving speed are increasing (particularly among young drivers). This is likely to cause traffic accidents if road users do not abide to traffic regulations.

Affected object(s): Local people in the subproject area & people traveling through the upgraded roads in East reservoir and Ka La flood bypass.

Affected level: Minor

Location: Along the upgraded roads in Ka La flood bypass and East reservoir and on dam crests.

Time: After construction completion, during operational phase

Impact on water quality due to increase of fertilizer or pesticide volume


Description: The increasing irrigation capacity from upgraded reservoirs will boost productivity. However, the use of fertilizers and pesticides will normally increase; this will have an effect on both surface and ground water in sub-project area as well as in the water of downstream-irrigated fields.

Affected object(s): Reservoirs and canals water quality in the subproject area & water bodies close to the cultivated area irrigated by the subproject.

Affected level: The impact is predicted as minor because an increase of fertilizers and pesticides is relatively low; moreover, it is also expected that the increasing trend of using environmental-friendly products will prevail in the coming future.

Location: East, West Reservoirs of Di Linh; and their downstream canals



41

Impacts

Potential Impact



Positive or

negative

Temporary or

permanent

Time: Long term in operational phase

Dams break during operation


Description: According to PPMU report, these dams of 03 reservoirs have been built and operated years ago (East Di Linh reservoir – 1986; West Di Linh reservoir – 1982; and Ka La reservoir – 2002). No break occurred but these structures so far, but the structures are obsolete.

This sub-project will upgrade and repair 2 dams in East and West Di Linh reservoir, and counter the existing downgraded status of the dams and reduce a risk of breaking. However, during operation, some impacts from natural disasters such as extreme weather conditions developing in heavy storms and floods can eventually cause dam break. This may cause losses of lives and property, destroy crops located downstream of the dams. In designing the upgrade of the structures, the most recent hydro-meteorological data have been integrate into the technical calculation to reduce these risks; also, emergency response plans have been built in each commune of the area as legal requirement and diffused among the population by local authorities.

Affected object(s): Local people in downstream of East & West reservoirs of Di Linh town.

Affected level: Possible catastrophic events are considered unlikely and the level of impact taken as minor.

Location: East and West reservoirs of Di Linh district.

Time: Long term in the operational phase



42

VI. ENVIRONMENTAL MANAGEMENT PLAN

From the analysis and evaluation of environmental impacts in section V, this section outlines the environmental management plan (EMP), including (i) Environmental mitigation measures; (ii) Environmental monitoring; (iii) Capacity strengthening program.

6.1 Environmental impacts and mitigation measures

Table 4: Environmental mitigation plan

No. Impacts

Objectives

Mitigation Measures

Mitigation measures Responsibility Location Time Cost

Pre-construction phase

1 UXO removal Safety for workers and local peoples

Completed

2

Impacts on HHs due to site clearance (land acquisition)

Minimize social impacts to households along the sub-project sites

- Apply appropriate process for 04 AHs agreed to donate their land for the sub-project in public consultation held by PPMU Lam Dong;

- Temporary acquisition land identified is vacant & public land. However, appropriate assessment need to be conducted to identify assets on temporarily acquired land for compensation and support for AHs in order to reduce their economic burdens;

- Conducting public consultation to inform local people of potential impacts due to land acquisition;

PPMU Lam Dong

04 HHs, who will be acquired their land along upgraded road in East reservoir (Di Linh town)

Before construction activities

Cost of sub-project preparation by PPMU Lam Dong

3

Lose natural /plantation

East & West Di Linh & Ka La

- Minimize trees cutting in the areas around reservoirs, 3 borrow pits and conduct tree planting requirements

Construction contractors and

East reservoir;

Before construction

Cost of sub-project



43

No. Impacts

Objectives

Mitigation Measures


forest due to increasing the crest level of dam

reservoirs after construction completed.

- Shrubs cleared in the surrounding of East & West reservoirs need to be collected and treated as solid waste in the disposal areas.

PPMU Lam Dong

West reservoir; and Ka La reservoir

activities preparation by PPMU Lam Dong

4

Reducing crop production due to inappropriate construction plan

It ensures that the sub-project does not interrupt or negatively affect farming activities

- Construction plan needs to be agreed with DARDs of Lam Dong and Di Linh, local authority/people and be publicly displayed on notice boards of Di Linh town and Bao Thuan commune;

- During construction of East & West reservoirs of Di Linh, especially in the dry season, flow diversion method by using temporary coffer-dams at head-works needs to be applied which is divided in to 4 periods as described in Table 5: Environmental impact screening;

- Construction method has been planned to keep a calculated water level in reservoirs that is essential to irrigate downstream fields and for construction activities.

- Monitor water level in the dry season to ensure water availability for irrigation, at least Q=0.32 m3/s for East reservoir & Q = 0.52 m3/s for West reservoir;

- Construct road section by section to preserve the transportation function of the road during construction period;

- Material plan needs to be prepared and the following requirements shall be included:

� Required materials, potential sources and estimated quantities available;

Construction contractors and PPMU of Lam Dong

Areas where irrigation is supplied by sub-project’s reservoirs;

Detail design and construction phases

Cost of sub-project preparation by PPMU Lam Dong



44

No. Impacts

Objectives

Mitigation Measures


� Material supply manners: preference in purchase from existing quarries;

� Agreement with local authorities;

� Check with environmental permission/certification of the quarries to ensure that environmental impacts and mitigation measures have been considered by their owners;

� Material transportation will be done following suitable plans and schedules.

II Construction phase

1

Landslide, Soil erosion and increase of sedimentation in flowing water

Minimize soil erosion and increased sedimentation in flowing water caused by erosion

- Excavation works need to be scheduled to exclude rainy season (from end of May or early of June to November) as much as possible;

- Split construction section by section to reduce the concentration of materials and extent of excavation and embankment;

- Material storage areas need to be bounded and covered during rainy times;

- Stabilize all slopes, embankments, and other erosion-prone working areas while works are proceeding;

- Re-plant vegetation covering upper parts of slope sections of roads and of dam slopes as soon as feasible after excavation and embankment works are achieved;

Contractors

Construction sites at 03 reservoirs (East reservoir, West reservoir and Ka La reservoir) & roads

During the construction phase

Included in the

construction contract



45

No. Impacts

Objectives

Mitigation Measures


- The exploitation of borrow pits needs to avoid rainy days that may cause land sliding and also;

- The exploitation of borrow pits needs to be dug in subsequent sections to better control verticality of digging areas;

- Not allow any heavy machinery or other equipment to be located on the top of digging areas to avoid possible landslides;

2 Surface water source can be contaminated

Minimize water source contamination

- Discarded lubricants and other chemicals have to be kept in dry covered area;

- Discarded lubricants and chemicals from construction sites need to be collected, transported and treated according to the Circular No. 36/2015-BTNMT of MONRE;

- Construction waste needs to be transported by adequate means to agreed disposal area in Gung Re disposal landfill;

- Provide 06 dustbins and 03 mobile septic tanks at work sites to manage wastewater and domestic waste from 03 worker camp sites;

- Disposal of solid wastes into East, West and Ka La reservoirs as well as canals, streams and other water sources and agricultural field shall be prohibited through notices in signboards at sites and be enforced by daily patrols by contractors personnel in all sites;

- Contractors must prepare a place to clean/wash

Contractors

(i) Construction sites at 03 reservoirs (East reservoir, West reservoir and Ka La reservoir) & roads;

(ii) Worker at 03 camps discharge


Included in the construction contract



46

No. Impacts

Objectives

Mitigation Measures


tools/vehicles. Washing trucks/ vehicles next to the water bodies, existing rivers, streams, canals and reservoirs such as East, West and Ka La reservoirs will not be permitted;

- Locations of 03 worker camps need to be apart from East, West and Kala reservoirs to avoid water contaminations from domestic waste;

- Cover material storage areas if it rains. Temporary storage of construction and domestic waste on the sites not last more than 24 hours;

3 Noise/ vibration

Ensure noise/vibration according to standard QCVN 26 & 27:2010/BTNMT

- Construction machinery and equipment need to meet the standards related to noise and vibration as regulated by the Government. Contractors need to submit official documentation proving that all construction vehicles, equipment, and machinery are checked and meet current Vietnam standards concerning noise and vibration generated;

- Ensure all construction vehicles and equipment are well maintained. Turn off machinery and/or equipment when possible to avoid continuous noise and vibration from disturbing workers;

- All noise and vibration generating activities shall be avoided during resting time of local people (12-1pm and 8pm to 6am) along the upgraded roads, canals and reservoirs;

- Provide ears’ protective equipment for workers working in high noise conditions generated by machinery and/or equipment, and allow for

CPMU. LIC, PPMU Lam Dong, contractors

Residential areas near and along roads connected to sub-project areas, and in construction sites in Di Linh town and Bao Thuan commune





47

No. Impacts

Objectives

Mitigation Measures


reasonable time-off from work when they are exposed to excessively long periods to noise and vibrations, as regulated in Decision 3733/2002 of Ministry of Heath

- Detailed construction schedule needs to be publicly announced by the contractor to local people so that they can arrange their activities and stay away from working sites and noise and vibrations.

4 Air pollution

It ensures air pollution complies with QCVN:05-2013/BTNMT

- Covering trucks and transportation vehicles when transporting materials.

- Equipment/vehicles have to be verified and licensed. Specifically, transporting vehicles need to meet the standards related of exhaust emissions as regulated by Government and according to Decision 249/2005 of the Prime Minister about emission of transportation vehicles in the territory;

- Watering practices to minimize dust generation need to be implemented for roads and working sites close to residential areas such as roads connecting East & West reservoirs in Di Linh town. Watering activities have been proposed to be carried out at least once per day during the rainy season and twice a day during the dry season in the working areas;

- The use of construction materials need to be properly planned, to limit as much as possible the volume of quantities stored on the sites;

- Equipment and machinery will not be allowed to move outside of construction sites;

CPMU. LIC, PPMU Lam Dong, contractors

Residential areas in communes along constructed roads and transportation routes including Di Linh town and Bao Thuan commune





48

No. Impacts

Objectives

Mitigation Measures


- Material or soil are falling from on the paved road and public road shall be cleaned immediately;

- All material/waste storages shall be located away from any households and sensitive areas.

5 Soil contamination

Minimize soil contamination

- Covering material storage areas and handling chemicals and wastes to ensure that construction materials and/or wastes could not fall into agricultural land in the subproject areas;

- Discarded lubricants and chemicals must be kept in dry area or covered when raining;

- Toxic waste, if any, need to be collected, transported and treated according to Circular No. 36.2015/BTNMT of MONRE;

- Regularly collect solid wastes and transport these to local disposal area (Gung Re disposal landfill) where agreed with local authorities/local people of Di Linh town & Bao Thuan commune;

- Provide dustbins and mobile septic tanks in all construction sites and worker camps;

- Wastewater from worker camps needs to be collected and treated before being discarded.

CPMU, LIC, PPMU Lam Dong, contractors

Areas in East and West reservoirs, area along Ka La flood bypass and 03 worker camps



6 Local flooding

Ensure that the construction does not interrupt farming activities

- Setting up appropriate construction schedule to avoid the rainy season, especially for excavation activities;

- Manage storage of materials and/or wastes to avoid these from falling into water in irrigation canals

Contractors

Upgraded road and culverts along Ka La





49

No. Impacts

Objectives

Mitigation Measures


leading and block intakes and/or culverts;

- Regularly checking water flow situation of intakes, culverts and removing materials that block water flow;

- Placement of equipment for washing vehicles and tools next to the rivers, streams, existing canals and water surfaces such East/West and Ka La reservoirs will not be allowed;

food bypass of Bao Thuan commune and East reservoir of Di Linh town

7

Unsafe conditions of travelling and business during the road construction (Traffic safety)

Ensure traffic safety and minimize disturbances to local people

- Install signals at construction sites to regulate and minimize speed of vehicles or construction warning signs, especially at the roads’ intersections;

- Install lamps at night at construction sites;

- Inform communities about construction schedule through informal public consultation or at any meetings with local people and display related information on notice boards of Di Linh town and Bao Thuan commune;

- Construction activities of rural roads need to be done by section sequences to minimize temporary occupation of areas along roads;

- Training for drivers of the sub-project as well as workers in safety rules and warning people passing nearby the sites

- Appoint at least 1 worker to monitor the inflow and outflow of vehicles to and from construction sites during peak hours in order to assure traffic safety.

Contractors

Along the roads being upgraded in Ka La flood bypass and East reservoir of Di Linh, and on inter- commune roads in the surrounding areas that local people use for their travelling





50

No. Impacts

Objectives

Mitigation Measures


8 Impact on local area ecology

Minimize impacts local area ecology

- Only cut down private trees and agricultural plants that have been taken into account in compensation plans;

- Any cut plants and/or damaged fields which are out of the ROW will be compensated according to voluntary agreement;

- Re-plant vegetation section by section after construction work completed to return landscape in its original condition

Contractors, PPMU Lam Dong

Upgraded roads; and in reservoirs



9 Impact by solid wastes

Minimize impacts to environment by solid wastes

- Residual volume (approximately 12,000m3) has to be regularly removed to the dumping sites agreed with Di Linh town and Bao Thuan communes CPCs. disposal site is Gung Re landfill;

- The transportation of discarded soil to disposal areas will be managed and implemented following mitigation measures in transportation to reduce air pollution;

- Equip 06 dustbins and 03 mobile septic tanks to work-sites for waste collection and treatment;

- Construction contractor needs to sign a contract to weekly collect solid waste from 03 worker camps with a local solid waste collection agency in Di Linh town;

- Disposal of solid wastes into reservoirs, canals, stream, other water sources such as East, West and Ka La reservoirs, as well as in agricultural field and public areas shall be prohibited;

Construction contractors

03 worker camps and all sub-project construction sites in Di Linh town and Bao Thuan commune





51

No. Impacts

Objectives

Mitigation Measures


- Burning of construction and domestic wastes shall be prohibited;

10 Impacts to existing infrastructure

Minimize adverse impacts to existing infrastructures

- Work with existing infrastructure owners (electricity, water, etc.) to identify locations of underground components if any;

- Obtain the agreement with local authorities in using the transport routes;

- Any public facilities damaged during project activities need to be fully repaired and recovered to their original conditions by the contractor;

- Load capacity of trucks should not exceed local bridges /roads’ load design (weight of loaded trucks utilized to be lower than 10 Tons, with special attention to roads whose designed load is 5 Tons only );

- After construction completion, all public facilities must be re-checked to ensure their functions have not been affected by sub-project activities; if any damage has been identified besides normal wear and tear, the contractor will be responsible for repairing the damaged structures to their original conditions and compensate for damages that cannot be recovered.

Contractors

All roads components used by the sub-project in Di Linh town and Bao Thuan commune



11 Disturbance to local people’s

Minimize disturbances to

- Recruitment of workers should prioritize local workers:

Contractors Di Linh town and Bao

During the construction

Included in the



52

No. Impacts

Objectives

Mitigation Measures


life due to presence of construction workers

local people’s life due to workers

- Register provisional residence for workers temporary living in the 3 camps;

- Contractor needs to regulate camp sanitation system;

- Carry out a program of HIV/AIDS and Sexually Transmitted Infections prevention. All workers should attend the training organized by the Project

- Communicate and raise awareness of the construction workers to maintain disciplines, habits and customs and create good relationships with local people, reduce social evils;

- Contractors need to be encouraged to organize provision of meals for all workers at each site to ensure hygiene and adequate food safety;

- Spray insecticides in the 3 workers’ camps;

- Train and guide labor safety measures and prevention of common diseases for workers;

Thuan commune

phase construction contract

12

Risks to health and safety to local people and workers

To ensure good health and safety to local people and workers

- Construction contractor needs to register number of workers with local authority;

- Regularly testing workers’ health against infectious diseases as regulated by Ministry of Labor;

- Provide sufficient labor safety equipment for workers such as safety shoes, helmets, harness, etc. Instruct workers how to use equipment and monitor their regular use to ensure compliance;

- A first aid kit will be provided at each construction site to ensure that patients can receive first aid timely

Construction contractor

People in Di Linh town, Bao Thuan commune and construction workers of sub-project;

During construction phase




53

No. Impacts

Objectives

Mitigation Measures


before transporting them to the medical station/ hospital; Collaborate with commune clinic center to receive additional support;

- Install power network at site in accordance with official safety regulations to ensure that the power lines are safe and that power connection to grid or generators are located at dry and safe places;

- Install warning signs at the electric receptacles;

- Display information panels on labor regulations at site;

- Install fences, warning signs at the intersection between canals and roads;

- Keep lights switched on during nighttime at all construction sites.

- Construct temporary drainage ditches to drain water from sites, prevent any possible water logging;

- Preparing emergency alerts and remedy intervention for any occurrence during construction activities such as fire, flooding or other unforeseen event;

13

Impacts concerning quarries for soil, stones and sand extraction

Minimize environmental impacts caused by mining raw materials for construction

- Soil used in construction will be extracted from borrow pits in the two reservoirs’ areas & in Gung Re borrow pit (8.5 km to flood bypass road in Ka La reservoir ), thus there will be no need to long distance transport from mines, reducing impacts of dust and traffic safety;

- During excavation period, soil mines mitigation measures to environment needs to be implemented,

Mines’ owners; Construction contractor

03 borrow pits, 01 sand mine in Di Linh town and Bao Thuan commune

In preparing materials for construction phase




54

No. Impacts

Objectives

Mitigation Measures


including: Exploit section by section to avoid excessive dust generation and landslides and prepare recovery plan for exploited areas. Workers in quarries have to have PPEs and should follow proper safety guidelines. Vehicles’ bed need to be covered to avoid dust & solid waste dropping on the roads. Night-time transportation need to be minimized to avoid traffic accidents possibly due to poor night-time visibility;

- Crushed stone and sand materials will be purchased from Tam Bo stone quarry in Duc Trong district (23 km), where environmental issues are controlled and mitigated by local authorities and quarry owners. Construction contractor needs to check license and environmental mitigation measures of such quarry;

- The transportation of materials will be intermittent and of limited occurrence. Care need to be taken to properly cover the batches transporting volatile material (sand, soil etc.) to avoid dust and fall-offs;

14


Avoiding and minimizing situation of lacking water for irrigation

- The construction of East and West reservoirs of Di Linh town must be scheduled and planned considering water availability for agriculture fields. Those plans need to be agreed with local DARDs (Lam Dong and Di Linh) and commune (Di Linh town) and displayed to local residents;

- Contractor to apply adequate measures to ensure that irrigated field downstream of West & East Di Linh Reservoirs will not be deprived of needed water.

Construction contractor, Supervisors and PPMU of LD.

East and West reservoirs of Di Linh town and theirs downstream areas




55

No. Impacts

Objectives

Mitigation Measures


- Construction need to be implemented in subsequent sections to minimize impacts

- Monitoring compliance of contractor to ensure the above will take place;

15

Impact on surrounding agricultural land and cultivation activities

Avoiding, minimizing impacts on surrounding agricultural activities

- Plans of construction need to be reviewed and agreed among provincial and Di Linh DARDs, Di Linh town and Bao Thuan commune Boards as well as displayed in notice boards of such town and commune;

- For road component: Construction should proceed in sections to ensure that local traffic will not be disrupted;

- For East & West reservoirs: construction plans need to be such that water supply to irrigated fields will not be discontinued. During dry season (from November to May), water flows from East & West reservoirs need to be monitored to ensure sufficient water supply to downstream fields;

- Any negative impact to irrigated fields (mainly insufficient or interrupted water supply causing losses to crops) occurring during construction period need to be adequately compensated;

Construction contractor;

Areas served by East and West reservoirs and roads in East reservoir and Ka La flood bypass



16 Cultural objects or graves found

Avoiding and minimizing impacts on cultures

- If any cultural object and/or grave is found during construction phase, the construction activities at those places need to be temporarily stopped and local authorities need to be immediately informed to deal with the issue;

Construction contractor, Lam Dong PPMU, CPCs of Di Linh town, Bao

Potential in all construction places, especially in





56

No. Impacts

Objectives

Mitigation Measures


- Proper forms of compensation need to be undertaken after consultation with households suffering fromany impact on their graves, and the construction contractor should provide necessary support to these HHs to resettle graves elsewhere or to communes for cultural objects found;

Thuan and Gung Re communes

upgraded and newly built roads

17 Environmental recovery activities

Ensure damaged environment and related infrastructures will be recovered after completing construction

- During construction, any damage to local infrastructure will be compensated and mitigated by construction contractor as mentioned above;

- The environmental issues emerged during recovery activities such as noise, dust, gases, solid waste, hazardous waste, water pollution etc. will be handled with similar measures indicated in related section above;

- Re-planting cutter plants and trees after completing construction activities;

- Repairing damaged infrastructures as soon as possible;

- Restore water-flows into East and West reservoirs of Di Linh, and protect areas from fishing activities to recover aqua-ecosystem;

- Restore the landscape in and around borrow pits to avoid landslides after exploitation completed;

Construction contractor;

East and West reservoirs of Di Linh town and upgraded Ka La flood bypass





57

No. Impacts

Objectives

Mitigation Measures


III. Impacts in the operation phase

1

Drains, culverts obstructing or flooding because of untimely or inadequate dredging

Ensure draining function of culverts and drains

- Regularly check and maintain culverts & drains;

- Periodically dredge culverts and drains after each harvest or after heavy rainfalls that cause erosion to hillside.

Owner

Officials of communes

Culverts & drains along reservoirs, roads and water intakes

During operational phase

Operational and maintenance cost

2 Erosion or land slide

Manage erosion and land slide

- Consider the need to reinforce dam slopes, culverts and drains;

- Plant and maintain regularly vegetation cover on dam slopes;

- Regularly maintain drains and dam slopes;

- Reinforce, compact and plant grass at the roads side slopes and reservoirs slopes;

- Regularly maintain and repair broken part of infrastructures (dam crest, irrigation canals, roads);

Owner

Along drains, slopes of dams, culverts;



3 Traffic accident increase

Ensure traffic safety

- Install speed limit and load limit signs; ensure traffic safety at residential areas and at road intersections;

- Communicate to enhance awareness of traffic safety for local people;

Department of Infrastructure - Economy of Di Linh district

Along the upgraded road and on dam rests



4 Impact on water quality due to use of

Mitigate impacts on surface water

- Cooperate with the extension service agencies to ensure that farmers receive training on sustainable farming methods, pest management;

DARDs of Lam Dong and Di Linh;

Irrigational canals; East & West Di


Included in operational and



58

No. Impacts

Objectives

Mitigation Measures


fertilizers or pesticides

- Pits to collect containers of pesticides, fertilizer must be constructed far from water reservoirs and flood areas; or recommend people collecting these wastes, do not scatter them on field, canals;

- Biological, environmental friendly pesticides must be introduced and their use be prioritized;

- Proper selection of pesticides, which are less toxic, less durable in environment must be applied;

- Schedule of pesticides spreading must be appropriate to reduce the volume to a minimum in order to reduce pollution to local environment;

Operation & Management team of East & West Di Linh reservoirs & Ka La reservoir

Linh reservoirs & Ka La reservoir

maintenance cost

5 Dam break during operation

Ensure dam safety and prevent flooding locally and at the downstream of sub-project reservoirs.

- Regularly check dams and reservoirs’ safety conditions, particularly during the rainy season and whenever there is a problem caused by natural disasters, bad weather conditions;

- Keep tracks of meteorological information when flooding is forecasted, take relevant and adequate precautions; plan and apply suitable rescue measures following instructions of the Central and local flood prevention Board;

- Upon detection of abnormalities these need to be reported timely; parameters need to be checked and properly estimated/calculated to provide appropriate mitigation options.

Lam Dong and Di Linh PCs; Owner; And people in the sub-project communes including Di Linh Town and Bao Thuan commune;

East reservoir and West reservoir of Di Linh district;


Included in operational and maintenance cost



59

6.2 Environmental monitoring

Environmental monitoring consists of (i) Environmental effect monitoring and (ii) Environmental Compliance Monitoring.

6.2.1 Environmental effect monitoring

The environmental effect monitoring has shown in the following table:

Table 6: Environmental effect monitoring

Mitigation Measure

Parameters Location Methods Frequency Responsibility Cost

Construction Stage

Control of air quality and noise impact

Noise generated from sub-project areas and its equipment

Construction sites and along the constructed roads

Observation, document review and public consultation

Weekly and monthly

Contractor and CSC Included in

the civil work contracts and CSC contracts

Control of water quality

Sediment loads, rubbish, oil or other visible pollutants

Significant water bodies in sub-project areas

Observation, document review and public consultation, workers’ interview

Weekly and after large rain occurrences

Contractor and CSC

Operational Stage

Surface water quality

Turbidity, presence of grease; chemicals of fertilizers and pesticides

Major streams from which they provide water for irrigation


2 times per year for first 2 years (1 time in wet season and 1 time in dry season)

PPMU Lam Dong

Included in operation cost

Soil quality

Evidence of fertilizers & pesticides in soil

At 02 locations of East & West reservoirs in sub-project irrigated area


2 times per year for first 2 years (1 time in wet season and 1 time in dry season)

PPMU Lam Dong



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6.2.2 Environmental compliance monitoring

The environmental effect monitoring are shown in the following table:

Table 7: Environmental compliance monitoring

Mitigation Measure


Construction Stage

EMP implementation provisions in construction contracts, construction supervision contracts

Availability of EMP implementation provisions in contracts

N/a Check contracts

First monitoring time

LIC, CPMU, PPMU Lam Dong

Included in the LIC Contract

Manpower to implement EMP

Environment staff mobilization at PPMU Lam Dong, supervisor, contractors

N/a

Discussion with stakeholders, document review

Six month period

LIC, PPMU Lam Dong, supervisor and contractors

Included in the LIC Contract and CSC contract

Landslide, erosion and sedimentation controls

Condition and capacity of controls

Performance of all mitigation measure

Throughout construction site


After large rain events

Contractor, Construction supervision consultant (CSC)


Surface water pollution

Turbidity, grease.


East & West Di Linh reservoirs Ka La reservoir


Random


Soil contamination

Solid waste, grease availability




Random


Materials storage

Condition of materials storage area


Observation, document review and public consultation and worker interview

Weekly


Construction equipment

Noise and exhaust

Throughout constructio

Observation, document

Random LIC, PPMU Lam Dong,



61

Mitigation Measure


and vehicles generation; covering of trucks; oil/ fuel leaks

n site review and public consultation and worker interview

supervisor and contractors

Construction camp conditions

Cleanliness; waste disposal facilities; general condition

All construction camps

Observation, document review and worker interview

Weekly


Vegetation clearing

Boundaries of vegetation clearing

Areas of sensitive vegetation


Weekly during clearing works


Solid wastes management on the site

Dustbins and mobile septic tanks at work site

Check with waste generation, collected, transported and treated manners and documents


In all construction sites


Weekly


Waste disposal

Site cleanliness and condition; temporary waste storage area



Weekly


Local flooding

Possibility of local flooding due to construction activities


Throughout construction site Observation,

document review and public consultation

Random



Traffic accident may increase and difficulty for usual life of

Availability of signals or staff to control/guide road user at

Road component at all villages

Observation, document review and public

Random

LIC, PPMU Lam Dong, supervisor and

Included in the LIC Contract and CSC



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Mitigation Measure


local people site around the subproject

consultation contractors contract

Impacts to existing infrastructure

Agreement letters between contractors and local authorities in using public facilities

Types of damages; level of compensation; satisfaction from local authorities as well as local residents

In all construction sites


Weekly



Impact on terrestrial ecology

(i) if are trees cut outside of ROW; (ii) if re-plant vegetable cover

Road component


Random



Disturbance to local people’s life due to construction workers’ presence

Status of workers: registration to local authorities and conflicts in the areas between local residents and workers



Random




Equipment available; percent of workers equipped with;

Provision of any warning signals in the sites



Observation, document review and public consultation and worker interview

Weekly


Impact on existing

Availability of water for

Irrigation canals

Observation, document

Monthly and

LIC, Lam Dong

Included in the LIC



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Mitigation Measure


irrigation system

irrigation in crops;

and production fields

review and public consultation

Weekly in dry season

PPMU, supervisor and contractors

Contract and CSC contract


Availability of water for irrigation in crops;

Crops impacts of communes

Agricultural areas around and in downstream of sub-project


Monthly and Weekly in dry season

LIC, Lam Dong PPMU, supervisor and contractors


Cultural objects or graves found

Check each case and performance of contractors


Observation

and public consultation and document review

If any

LIC, Lam Dong PPMU, supervisor and contractors


Environment recovery

Clearance activities


Worksites, and disposal location

Observation and public consultation

Once before hand over



Operation Stage

Culverts & drains obstructing of flooding

Ensure culverts and drains to be operated well

Dam slopes, culverts and drains, culverts

Observation and public consultation

6 monthly for first 5 years of operation

PPMU Lam Dong

Included in operational stage budge

Risk of traffic accident increase due to better road surface

Controlling traffic accident

Roads & dam crests

Observation and discussion with local authority


PPMU Lam Dong

Impact on water quality due to use of fertilizer or pesticide

Water usage safety

Reservoirs; canals and the downstream of reservoirs



PPMU Lam Dong

Erosion or land slide

Ensure the canals/ reservoirs/roads to be

Drains, slopes of dams, culverts

Observation and discussion with local

6 monthly for first 5 years of

PPMU Lam Dong



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Mitigation Measure


operated well authority operation

Environment recovery

Ensure environment is restored in its original condition

In all sub-project areas



PPMU Lam Dong

6.3 Building capacity for EMP implementation

The relevant stakeholders need to ensure the EMP implementation as their responsibilities. All CPMU, PPMU Lam Dong, CSC and CC need to appoint officers/staffs to be in charge of environmental management. However, most of these officers/ staffs are also assigned for other works and they are not specialized in environmental management. Thus, to ensure EMP is implemented in compliance with sponsor policies and Vietnamese legislation, these officers/ staffs must be guided/ trained on EMP implementation capacity building. Training on EMP implementation must be held for different groups with different requirements.

- PPMU Lam Dong and CSC: The staffs that are in charge of environment will be trained (at least once in the first 3 months of the project) on monitoring and preparing environmental reports.

- Construction contractor: Will be trained (immediately after contract signing) on implementing mitigation measures and preparing reports.

Table 8: Schedule of training on capacity building

Agency Session Participant Frequency of

training Duration and type

Responsibility

Cost

PPMU Lam Dong

Environment al monitoring and report preparation

Environmental staffs, engineers

1 time when starting the project and then update it, if any, depending on implementation

1 day of training

CPMU/ LIC

Included in the project management cost and LIC contract

CSC Environment al monitoring and report preparation

People who are in charge of environment and people related to environmental management

1 time when starting the project and then update it, if any, depending on implementation

1 day of training

CPMU/ LIC

Included in the project management cost and LIC contract

Construction Contractors

Implement mitigation measures

Main contractors report to PPMU Lam Dong

1 time when signing contract then update it, if any, depending on implementation

1 day of training, monthly report form

CPMU/ LIC

Included in the project management cost and LIC and CSC contract



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6.4 Budget for EMP implementation

The budget allocation for implementation of EMP of sub-project has been described in following table:

Table 9: Budget for EMP implementation

Item Preparation phase Construction phase Operation phase

Construction supervision consultant

Included in the contract with PPMU Lam Dong

Internal monitoring of PPMU Lam Dong

Included in the project management cost of PPMU Lam Dong

Include in the contract of CC, CSC and PPMU Lam Dong management cost.

Province and local budget

Implementing mitigation measures

Subproject preparation cost

Included in the construction contracts

Operation and maintenance cost

Monitoring EMP implementation (undertaken by LIC)

Included in the contract between CPMU & LIC

Public consultation and information disclosure

Include in IEE preparation consultant contract

Include in the contract of civil works, CSC and Lam Dong PPMU management cost.

Operation and maintenance cost



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VII. IMPLEMENTATION RESPONSIBILITY AND REPORTING

7.1 Implementation responsibility

Three agencies directly related to EMP implementation are PPMU Lam Dong, CSC and CC. The responsibilities of relevant stakeholders in EMP implementation are presented as table below:

Table 10: Responsibility of stakeholders

Agency Responsibilities

CPMU

- Recruit consultant for preparing safeguard policies;

- Review, adopt and submit to ADB IEE reports;

- Assign LIC to monitor EMP implementation;

- Guide PPMU Lam Dong to integrate EMP into tender documents/ CSC contract;

- Review monitoring reports of LIC and internal reports of PPMU Lam Dong;

- Report EMP implementation to ADB;

- Assign experienced staff to follow up and monitor EMP implementation.

LIC

- Prepare manual for EMP implementation and train on EMP implementation for PRI CHPs, CSCs and CCs;

- Help PPMU integrate environmental safeguard requirements specified in the EMP into bidding documents/ construction supervision and construction contracts;

- Periodically monitor EMP compliance every 6 months;

- Report monitoring results and recommendations on EMP implementation to CPMU and sponsor for every 6 months

PPMU Lam Dong

- PPMU Lam Dong is liable for any recommendations regarding improvement of the project with the aim of protecting and maintaining the environment. It Includes environmental complaints and complaints resolution related to subproject implementation;

- Appoint specialized personnel to monitor environment of the subproject;

- Publicly post EMP information at CPC where the project goes through;

- Integrate environmental requirements, including sanctions for failure to comply EMP into bids / contracts with CC and CSC;

- Instruct and approve site EMP prepared by construction contractor;

- Support and coordinate with the EMP implementation units;

- Ensure adequate fund for EMP implementation;

- Arrange and join capacity building training on EMP implementation conducted by LIC;

- Periodically report EMP implementation to CPMU and DONRE

Construction supervision consultant (CSC)

- Appoint staffs to be in charge of environment and participate in training courses conducted by LIC;

- Review EMP prepared by contractors and submitting it to PPMU Lam Dong to get approval.

- Beside monitor construction quality, CSC also implement compliance monitoring on environmental safeguard of construction contractors every day as stipulated in EMP;

- Report monitoring results and findings to PPMU Lam Dong monthly

Construction contractor

- Appoint staffs to monitor environmental issues of the construction. This staff can be a concurrent staff if the workload of environmental is not heavy.



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Agency Responsibilities

- Base on the EMP of sub-project, CC will prepare their own EMP;

- Implement mitigation measures to minimize potential negative impacts as instructed in the EMP;

- Closely coordinates with local communities to perform environmental mitigation measures during construction process;

- Ensure that all construction activities have complete documents from the relevant authorities;

- Implement all measures to minimize negative impacts and to protect environment;

- Ensure that staff and employees understand the process and their duties in the EMP;

- Report to PPMU Lam Dong the difficulties and problems, if any;

- Report to stakeholders the environmental issues and coordinate with them to solve those issues;

Lam Dong PPC/ DONRE

- Monitor any violation under policies on environmental management and protection of Vietnam;

- Evaluate any change of the design which can cause environmental impacts;

DPC/ DONRE

- Approve EPC of the subproject in accordance with the provisions of Vietnamese laws;

- Monitor EMP implementation through internal monitoring system of the DPC.

Social organizations, women union and other associations

- Play a key role as a bridge between local community and PCs;

- Community Monitoring;

- Mobilize community participation in subproject implementation;

- Combine with the PPMU Lam Dong and contractors to perform road measures to prevent public services from damage;

- Participate in resolving environmental problems.

Local communities

- In Vietnam, the communities have the right and responsibility to regularly monitor environmental activities in the construction process to ensure that the rights and their safety is protected fully and mitigation measures are implemented effectively;

- In case of problems, they will report to community team, contractors or PPMU Lam Dong.



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7.2 Report system

Besides monitoring on EMP implementation, stakeholders are also responsible for periodic

reporting of EMP implementation. The table below shows the system of monitoring and reporting.

Table 11: Monitoring and reporting system

Phase Report Frequency Responsibility Submit to

Co

nstr

uctio

n

Periodically report on implementation of mitigation measures: Present in details of EMP activities of the subproject/packages and monitoring results.

Every month Construction contractor

PPMU Lam Dong and CSC

Periodically report on EMP implementation of construction contractor: Present in details of EMP activities of the subproject and monitoring results.

Every month CSC Lam Dong

Periodically report on EMP implementation of the subproject: Present in details of EMP activities of the subproject and monitoring results.

Every 3 month during construction phase

PPMU Lam Dong

- CPMU;

- DONRE of Di Linh district;

Periodically monitoring report on EMP implementation of the subproject: Present in details environmental activities of the subproject and activities in compliance with EMP of the subproject and monitoring results.

Every 6 month during construction phase

CPMU/ LIC ADB

Op

era

tion Periodically report on EMP

implementation at operation: Present in details activities in compliance with EMP of the subproject in the operation phase.

Every 6 month

District Sub-project Operation Agency

CPMU



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VIII. PUBLIC CONSULTATION AND INFORMATION DISCLOSURE

Public consultation and information disclosure of the subproject have to be implemented continuously from the design phase to the construction phase. It consists in collecting community ideas as well as encouraging local people’ participation in preparing and implementing the subproject’s EMP. Public consultation consists in preparing IEE of the subproject. Minutes and pictures of public consultations are in Annex 1 & Annex 2.

8.1 Public consultation in the subproject preparation phase

8.1.1 Description of activities to date

Table 12: Public consultation description

Consultation method Description of activities

By dispatches and meeting with local officers

Date of correspondence

PPMU Lam Dong contacted with local authorities by telephone to agree on public consultation; Di Linh district; Di Linh town & Bao Thuan commune;

Dates of meetings (if requested)

April, 2015

Minutes of meeting attached (yes/ no)

No

Public meeting

Organization date

- Morning of April 14, 2014 in Di Linh Town;

- Morning of April 13, 2015 in Bao Thuan commune;

Organization location CPCs of Di Linh town and Bao Thuan commune; in the Halls of People Committees;

Invitees Beneficiaries, headers of villages and representative of town local authorities;

Invitation method By means of public media of the commune (header of villages announce every HH). The Women Association also invites women to attend the meetings.

Meeting schedule attached (yes/ no)

Yes

Minutes of meeting attached (yes/ no)

Yes

Number of participants - Di Linh town: 28 people (06 females) - Bao Thuan commune: 25 people (0

female).

8.1.2 Outcomes of the public consultation to date

All ideas/concerns from local people during the public consultation were reported by SPC to PPMU Lam Dong and integrated into the IEE as stated in table 4 (EMP) of IEE. See the summary of the main ideas/concerns in the table below:

Table 13: Results of public consultation



70

Issues raised Required follow-up actions?

Description By Whom?

Potential damage existing road Local people Contractors’ trucks with maximum capacity of less than 10 tons;

Abundant solid waste from constructional activities (if any) to be used by local people

Local people Contractors have to notify abundant solid waste to local people if it is available.

Original environment recovery

Local people - Contractors have to recover environment at sites as found before construction..

- Inappropriate landfills of the subprojects;

- Recover mines, especially borrow pits;

- Temporary land occupation around sites and on roads,

- Check survival of trees and plants complementarily if any

Bad quality of the proposed works

Local people Local people agree to take part in community monitoring team set up by PPMU Lam Dong and local authorities;

8.2 Consultation in future

Table 14: Expected public consultation activities

Activities Participants Expected results Schedule Cost

Community meetings before construction commence

PPMU Lam Dong,

CC, CSC,

Representative Of

Local Authorities And

Local People Of Di

Linh Town & Bao

Thuan commune

- Announce

construction items and

construction plan.

- Agree on details of

mitigation measures

(especially water off

schedule).

1 week before

construction

commence.

Included in EMP

budget

Periodic meeting

CC, CSC and representative of local authorities, organizations and local people

- Periodically monitor mitigation measures application, and outstanding issues;

- Propose mitigation measures and agree on implementation.

Every 1 month from the construction commence.

Included in the contracts

8.3 EMP disclosure

- After being adopted, PPMU Lam Dong is responsible for posting IEE summary at Di Linh Town and Bao Thuan People’s Committees;

- IEE will be posted on website of ADB Websites.



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IX. GRIEVANCE REDRESS MECHANISM

9.1 Purpose of the mechanism

During the deployment of the subproject, local people are informed about environmental protection activities such as EMP. Negative impacts on the environment may occur during the construction and operational phases. Any comments/ suggestions of local people will be solved quickly, transparently in compliance of laws, particularly for affected people by the sub-project. Complaint handling mechanism will be classified by level and responsibilities of involved parties.

9.2 Grievance redress mechanism

Per the environmental management frame, there are 03 steps to redress complaint as below:

Stage 1: If a household has any complaint, he/she can submit a complaint to the CPC-community monitoring board. CPC will work with CSC and CC to solve complaints.

Stage 2: If the complaint is not resolved, the complainant will submit an application to the Di Linh DPC to resolve the complaint.

Stage 3: If more than 15 days pass without response from Di Linh DPC, the complainant may submit a complaint to the Lam Dong PPC (through Lam Dong DONRE). Lam Dong PPC will require Di Linh DPC to solve the complaint. In case the complaint is still not resolved, Lam Dong PPC will require environmental police to investigate and requested stakeholders to resolve the complaint. See the mechanism in figure 1 below:

Figure 1: Grievance redresses mechanism



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X. CONCLUSION, COMMITMENT AND RECOMMENDATION

10.1 Conclusion

The results of environmental screening and environmental impact assessment show that the sub-project may cause some environmental impacts, but that most of such impacts are insignificant. However, the appropriate mitigation measures have also proposed to manage the negative impacts and maximize the benefit of the subproject. The responsibilities of implementation and monitoring of the stakeholders have also been identified to ensure environmental compliance.

10.2 Commitment

PPMU Lam Dong of the sub-project “Repairing, upgrading Di Linh western and eastern reservoir, flood bypass of Ka La reservoir and productive rural infrastructure in Di Linh district, Lam Dong province” commits themselves to:

- Implement requirements of environmental safety as stated in IEE via information dissemination, integrating environmental safety as stated in this IEE in bidding documents in construction and in the CSC contracts; mobilize human resources and monitor internally the IEE compliance;

- Report environmental safety implementation to DONRE and CPMU periodically as specified in the IEE;

- Compensate and take measures against environmental pollution if there are any problem during operation of the sub-project;

- Handle complaints if any.

10.3 Recommendations

Based on the IEE report, the PPMU of Lam Dong would recommend that:

- No further environmental assessment is needed because the impacts on environment is insignificant;

- Based on IEE, PRI CHP of Lam Dong would like to request functional authorities to give their approval of the IEE for “Repairing, upgrading Di Linh western and eastern reservoir, flood bypass of Ka La reservoir and productive rural infrastructure in Di Linh district, Lam Dong province” sub-project, to create the basis for next implementation steps, ensuring the implementation progress, effectiveness and benefits of the project.



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XI. ANNEX

ANNEX 1: PUBLIC CONSULTATION IMAGES AND AT THE SUBPROJECT SITE

Consultation in the design stage of the sub-project in Di Linh Town and Bao Thuan commune

Site visit in East & West reservoir of Di Linh town

Site visit and public consultation in Bao Thuan commune



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ANNEX 2: MINUTES OF PUBLIC CONSULTATION

1. Minutes of public consultation in Di Linh Town People of Committee



75



76



77

2. Minutes of public consultation in Bao Thuan commune People of Committee



78



79



80

ANNEX 3: MINUTES AND DIAGRAM OF DISPOSAL YARDS

Locations of disposal yards of sub-project in Di Linh town, Di Linh district, Lam Dong province:

Identify disposal yard in Di Linh town



81



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ANNEX 4 a: MONITORED RESULTS OF ENVIRONMENTAL PARAMETERS (from Center of Environmental Technology, Lam Dong)

Monitored results of surface water parameters at surface water sources of sub-project areas:

No. Sample

Parameters

T0 pH DO BO5 COD SS NH4

+ NO3

- NO2

- Fe Pb Hg

Coliform bacteria Pesticide

0C - mgO2/l mgO2/l mgO2/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l MNP/100 ml mg/l

1 NM-01 27.2 7.22 7.66 <3 3 171 0.15 0.4 0.01 0.19 KPH KPH 460 KPH

2 NM-02 27.3 7.26 7.24 5 9 288 0.175 1.15 0.028 0.39 0.003 KPH 4800 KPH

3 NM-03 25.9 6.91 7 4 6 162 0.438 1.4 0.02 0.59 KPH KPH 1100 KPH

4 NM-04 26.5 6.95 6.78 3 7 509 0.313 1.725 0.023 0.46 0.002 KPH 930 KPH

5 NM-05 26 6.98 7.27 7 12 237 0.45 0.625 0.025 0.49 0.002 KPH 24000 KPH

6 NM-06 22.6 7.17 7.86 <3 4 29 0.25 0.175 0.016 0.48 KPH KPH 1100 KPH

7 NM-07 28.1 7.21 5.94 8 17 51 0.538 0.3 0.01 0.55 KPH KPH 48000 KPH

8 NM-08 26 7.32 6.61 4 6 63 0.875 0.275 0.03 0.7 0.005 KPH 210 KPH

9 NM-09 29.3 6.99 6.3 3 4 9 0.363 0.15 0 0.05 KPH KPH 460 KPH

10 NM-10 26 6.52 8.12 5 9 226 0.213 0.175 0 0.1 KPH KPH 9300 KPH

QCVN 08:2008 B1 - 5.5 - 9 >= 4 15 30 50 0.5 10 0.04 1.5 0.05 0.001 7500 -

Source: Center of Environmental Technology, Lam Dong

Note:

- KPH: Not detected, LOD: Level of detection.

- NM1: Surface water sample at Kinh Duc Bridge, Dinh Trang Thuong commune;

- NM2: Surface water sample at Village No.4, Dinh Trang Thuong commune;

- NM3: Surface water sample at Da Nirr spring, Village No.7, Tan Chau commune;

- NM4: Surface water sample at downstream of Da Nirr spring, Tan Chau commune;

- NM5: Surface water sample at Bridge No.1, Village No.12, Hoa Ninh commune;



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- NM6: Surface water sample at DAKLE bridge, Tam Bo commune;

- NM7: Surface water sample at Thanh Bach lake, Dinh Lac commune;

- NM8: Surface water sample at Cau 1 spring, Gung Re commune;

- NM9: Surface water sample at East reservoir, Di Linh town;

- NM10: Surface water sample at West reservoir, Di Linh town.

Monitored results of ground water parameters of sub-project areas:

No. Sample

Parameter

pH Color CaCO3 TSS NO3- NO2

- NH4

+ SO4

2- Mn Fe Pb As

Coliform

bacteria

- Pt-Co mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l MNP/100ml

1 NN-01 5.22 0 0 0 0.063 0 0.005 2.6 0.007 0.05 KPH KPH < 3

2 NN-02 5.97 0 12 0 5.988 0 0.003 1.9 0.045 0.08 KPH KPH 46

3 NN-03 6.75 0 3 0 0.013 0 0.413 3 0.037 0.06 0.007 KPH < 3

4 NN-04 7.03 79 5 0 0.038 0 0.01 5.9 0.005 0.78 0.009 KPH < 3

5 NN-05 6.44 12 63 21 0.088 0 0.008 13.6 0.166 3.09 0.006 KPH < 3

6 NN-06 7.05 6 28 17 0.025 0 0.025 4.3 0.207 0.31 0.012 KPH < 3

QCVN 09:2008 5.5 - 8.5 - 500 1500 15 1 0.1 400 0.5 5 0.01 0.05 3


Note:

- NN-01: Ground water sample at Tan Thuong clinic center, Tan Thuong commune; - NN-02: Ground water sample at Mr. Lai Xuan Binh’s household, Village No.1, Hoa Nam commune; - NN-03: Ground water sample at Mr. Do Viet Hung’s household, Village No.12, Hoa Ninh commune; - NN-04: Ground water sample at local slaughtering center, Di Linh town; - NN-05: Ground water sample at Ms. Pham Ngoc Thuy’s household, Di Linh town; - NN-06: Ground water sample at Tam Bo stone mine, Tam Bo commune.



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Monitored results of ground water parameters of sub-project areas:

No. Sample

Parameters

T0 Moisture Wind speed Noise NO2 SO2 CO Dust

0C % m/s dBA mg/m3 mg/m3 mg/m3 mg/m3

1 KK-01 27.7 58.8 4.1 79.4 0.095 0.059 5.3 0.44

2 KK-02 27.2 65.8 3.2 76.8 0.127 0.082 3.8 0.53

3 KK-03 21.9 83.5 3.5 72.8 0.058 0.041 0.6 0.62

4 KK-04 26.4 69.7 3.6 76.4 0.043 0.028 0.4 0.31

5 KK-05 25.9 63.8 3.1 68.7 0.016 0.007 KPH 0.14

QCVN 05:2013 - - - - 0.2 0.35 30 0.3

QCVN 26:2010 - - - 70 - - - -


Note:

- KK-01: Ambient air sample at T-junction of Di Linh town with National Highway No.20, Di Linh town; - KK-02: Ambient air sample at T-junction of Hoa Ninh with National Highway No.20, Hoa Ninh commune; - KK-03: Ambient air sample at Hiep Phan Cooperation, Tam Bo commune; - KK-04: Ambient air sample at Tam Bo stone mine, Tam Bo commune; - KK-05: Ambient air sample at OLAM Coffee Co.Ltd, Gia Hiep commune


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ANNEX 5 b: MONITORED RESULTS OF ENVIRONMENTAL PARAMETERS ( from EIA of Di Linh Subproject – Vinacontrol, 2016- VIECA - December 2015 )

The result of measured temperature, humidity and noise of the subproject area

Indicators

Locations

Temperature

(0C) Humidity(%)

Wind Speed

(m/s)

Noise

(dBA)

KK1 Di Linh West Reservoir Site No1 22,3 61,2 0,2 48-49

KK2 Di Linh West Reservoir Site No2 22,8 61,5 0,3 47-48

KK3 Ka La Reservoir - By pass road No1

23,6 61,3 0,2 49-50

KK4 Ka La Reservoir - By pass road No2 (Starting point)

23,5 61,5 0,2 47-48

KK5 Di Linh East Reservoir ( access road)

22,4 61,8 0,3 46-47

KK6 Di Linh East Reservoir – at the dam

23,1 61,4 0,2 45-46

(QCVN 26: 2010/BTNMT) - - - 70 Source : EIA of Repairing, upgrading Di Linh Irrigation system & rural road – Vinacontrol, 2016- VIECA - 12/2015

The analyzed results of air quality of the subproject area

Source : EIA of Repairing, upgrading Di Linh Irrigation system & rural road – Vinacontrol, 2016- VIECA - 12/2015

Sampling Locations Dust NOx CO SO2 H2S NH3

(mg/m3)

KK1 Di Linh West Reservoir Site No1

0,026 0,021 0,3 0,012 Undetected Undetected

KK2 Di Linh West Reservoir Site No2


KK3 Ka La Reservoir - By pass road No1


KK4 Ka La Reservoir - By pass road No2 (Starting point)


KK5 Di Linh East Reservoir ( access road)


KK6 Di Linh East Reservoir – at the dam


(QCVN 05:2013/BTNMT) 0,3 0,20 30 0,35 0,042 0,2


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The analyzed results of water quality of the subproject area

No

Indicators

Unit

Analyzed QCVN 08-MT: 2015/ BTNMT Column B1

NM1 NM2 NM3 NM4 NM5 NM6

1 pH 6,8 6,4 6,1 6,3 6,5 6,9 5,5-9

2 DO mg/l 5,8 6,3 5,4 6,2 6,4 5,8 ≥ 4

3 TSS mg/l 22 20 24 18 23 25 50

4 COD mg/l 12 13 12 14 11 14 30

5 BOD5 mg/l 5 4 5 6 4 6 15

6 Ammonia mg/l 0,03 0,04 0,02 0,01 0,02 0,05 0,9

7 Chloride mg/l 0,6 0,4 0,8 0,4 1,2 0,6 350

8 Nitrite mg/l Undetected

Undetected

Undetected

Undetected

Undetected

Undetected

9 Nitrate mg/l 0,40 0,63 0,54 0,32 0,12 0,40 10

10 Phosphate mg/l Undetected

0,02 0,01 Undetected

0,04 Undetected

0,3

11 Sulfate mg/l KPH KPH 0,04 KPH KPH 0,02 -

12 Fe mg/l 0,28 0,12 0,30 0,08 0,16 0,04 1,5

13 Pb mg/l Undetected

Undetected

Undetected

Undetected

Undetected

Undetected 0,05

14 Oil & Grease mg/l Undetected 0,012

Undetected

Undetected 0,010

Undetected 1

15 Coliform bacteria

MPN/ 100ml

1200 750 600 900 450 1700 7.500


Note :

NM1 : Di Linh West Reservoir Site No1

NM2 : Di Linh West Reservoir Site No2

NM3 : Ka La Reservoir - By pass road No1

NM4: Ka La Reservoir - By pass road No2 (Starting point)

NM5: Di Linh East Reservoir ( access road)

NM6 : Di Linh East Reservoir – at the dam


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The analyzed results of groundwater quality of the subproject area

No Indicator Unit NN1 NN2 QCVN 09-MT:2015

/BTNMT

1 pH - 6,5 6,4 5,5 - 8,5

2 TSS mg/l 3,3 2,5 -

3 Hardness (CaCO3) mg/l 56 69 500

4 As mg/l Undetected

Undetected 0,05

5 Pb mg/l Undetected

Undetected 0,01


Note :

NN1 : At the house near by Di Linh Reservoir

NN2 : At management house of Ka La Reservoir

ANNEX 6: BUDGET OF ENVIRONMENTAL MONITORING

No. Description Unit Quantity Unit price

(1000đ)

Total

(1000đ) Legislation

I Monitoring air sample (9 location x 1 sample/location) 10,566

a Parameters

1 TSP Sample 9 100 900 TT232/2009/ TT-

BTC

2 NOx Sample 9 200 1800 ditto

3 SO2 Sample 9 200 1800 ditto

4 Lead dust (Pb) Sample 9 320 2880 ditto

b Weather 0

1 Temperature Sample 9 40 360 ditto

2 Wind direction Sample 9 40 360 ditto

3 Wind velocity Sample 9 40 360 ditto

4 Humidity Sample 9 40 360 ditto

b Noise 0

1 Laeq Sample 9 52 468 TT 232/2009/ TT-

BTC

2 LAmax Sample 9 52 468 ditto

c Vibration (2 locations x 1 hr/location)

1 Velocity Sample 9 30 270 TT 232/2009/ TT-

BTC

2 Acceleration Sample 9 30 270 ditto

3 Frequency Sample 9 30 270 ditto


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No. Description Unit Quantity Unit price

(1000đ)

Total

(1000đ) Legislation

II Monitoring surface water (5 locations x 1 Sample) 12,108 TT 29/2011/TT-

BTNMT

1 Temperature Sample 6 3 18 TT232/2009/TT-

BTC

2 TSS Sample 6 60 360 ditto

3 pH Sample 6 40 240 ditto

4 BOD Sample 6 95 570 ditto

5 COD Sample 6 100 600 ditto

6 Amoni (NH4+) Sample 6 70 420 ditto

7 Nitrat (NO3-) Sample 6 70 420 ditto

8 Total N (T-N), Sample 6 80 480 ditto

9 Total P (T-P) Sample 6 80 480 ditto

10 Grease Sample 6 300 1800 ditto

11 Pesticide Sample 6 600 3600 ditto

12 Lead (Pb) Sample 6 80 480 ditto

13 Copper (Cu) Sample 6 80 480 ditto

14 Zinc (Zn) Sample 6 80 480 ditto

15 Asen (As) Sample 6 100 600 ditto

16 Iron (Fe) Sample 6 80 480 ditto

17 Mercury (Hg) Sample 6 100 600 ditto

Total 22,674


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ANNEX 6: ENVIRONMENTAL REQUIREMENT IN THE BIDDING DOCUMENT

No. Impacts Mitigation measures Location

1

Landslide, Soil erosion and increase of sedimentation in flow

- Construction works need to be scheduled to avoid rainy season (from end of May or early of June - November), in fact, many construction activities technically required to be taken place during dry season, this will reduce impact of landslide and soil erosion caused by water run-off;

- Construct section by section to complete each section if possible for roads and dam slopes, therefore, the concentration of materials, the extent of excavation and embankment will be reduced;

- Material storage areas need to be bounded and covered during rainy times;

- Stabilizing all slopes, embankments, and other erosion-prone working areas while works are going on;

- Re-plant vegetation cover in high slope sections of the road, dam slopes as soon as possible after excavation and embankment works;

- The exploitation of borrow pits need to be implemented in early phase of construction, as well as avoid rainy days to avoid landslide impact as well as safety for such activities;

- The exploitation of borrow pits need to be dug section by section to control vertical of digging areas;

- Not allow any heavy machine/equipment located on the top of digging areas to avoid landslides;

- The exploitation of borrow pits need to be implemented in early phase of construction, as well as avoid rainy days to avoid landslide impact as well as safety for such activities;

- The exploitation of borrow pits need to be dug section by section to control vertical of digging areas;

- Not allow any heavy machine/equipment located on the top of digging areas to avoid landslides;

Construction sites at 03 reservoirs (East reservoir, West reservoir and Ka La reservoir) & roads

2 Surface water source can be contaminated

- Discarded lubricant, other chemicals have to be kept in dry covered area;

- Discarded lubricants/ chemicals from construction sites need to be collected, transported and treated according to the Circular No. 36/2015-BTNMT of MONRE;

- Construction waste needs to be

(i) Construction sites at 03 reservoirs (East reservoir, West reservoir and Ka La reservoir) & roads;

(ii) Worker at 03 camps discharge


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transported by adequate manners to - Low land area in downstream of reservoirs

that under managed by Di Linh District Public Work Exploitation Company and distance about 200 – 250 m to the sites

- Provide 06 dustbins and 03 mobile septic tanks at work sites to manage wastewater and domestic waste from 03 worker camp sites;

- Disposal of solid wastes into East, West and Ka La reservoirs as well as canals, streams and other water sources, agricultural field shall be prohibited through (i) notices in signboards at sites and daily patrols by constructional contractors at sites;

- Contractors must prepare a place to wash instruments/vehicles. Washing trucks/ vehicles next to the water bodies, existing rivers, streams, canals and reservoirs such as East, West and Ka La reservoirs will not be allowed;

- Locations of 03 workers’ camps need to be distanced to East, West and Kala reservoirs to avoid water contaminations;

- Materials storages should be distanced to such reservoirs also, and in flat areas to avoid sweeping/sliding of materials. The storage areas need to have cover barriers and/or traps to reduce sediments flow into surface water sources;

- Cover material storage areas when raining is needed. Temporary storage of constructional and domestic waste on the sites will be no longer than 24 hours;

3 Noise/ vibration

- Construction machines and equipment need to meet standards of exhaust, noise, and vibration as regulated by the Government. The Contractor needs to submit the Engineer documents proving that all construction vehicles, equipment, and machines are checked and meet requirements concerning noise and vibration generation of the current Vietnam standards;

- Only machines and/or equipment meeting requirements are used for constructions of sub-project;

- Turn off machines and/or equipment (if possible) if it discontinuous operated to avoid accumulated noise and vibration impacts on workers;

- All noise and vibration generation activities

Residential areas in connecting roads with sub-project areas, and in construction sites in Di Linh town and Bao Thuan commune


91


shall be restricted at rest time of local people (12-13h and 20h to 6h) on road items (i) along the upgraded roads, canals; (ii) reservoirs;

- Provide ear protective equipment for workers who work at high noise machines and/or equipment, and require time off for them if they are disposed too much with noise as regulated in Decision 3733/2002 of Ministry of Heath

- Construction schedule needs to be publicly announced to local people and allocate activities then local people can arrange their works that should not come to near by the sites to avoid/mitigate impact to noise and vibration.

4 Air pollution

- Covering trucks and transportation vehicles to minimize dust generated when transporting materials. The trucks and vehicles and construction machine required to be in good conditions to reduce air pollution. In specific, they need to be met standards of exhaust as regulated by Government according to Decision 249/2005 of Prime Minister about emission of territorial transportation vehicles;

- Covering trucks from borrow pits and mines during transportation to minimize dust;

- Watering to minimize dust generation need to be implemented that are close to residential areas such as transportation roads connecting East & West reservoirs in Di Linh town. The watering activities have been proposed at least once per day during the rainy season and twice a day during the dry season in the working areas;

- The using of construction materials need to be scheduled, which will limit amount of storage then could reduce/control dust generation from storage activities;

- Equipment/vehicles have to be verified and licensed. In addition, they are required regularly maintained to ensure emitted gases are in thresholds;

- Equipment and machines will not be allowed to move outside of construction sites to ensure control of emission sources;

- All vehicles must be washed/cleaned daily to minimized dust generation;

- Soil scattered on the paved road and public road shall be removed

Residential areas in communes along constructed roads and transportation routes including Di Linh town and Bao Thuan commune


92


immediately; - All material/waste storages shall be

located away 100 m from any households and sensitive areas.

5 Soil contamination

- Covering material storage areas and handling chemicals and wastes to ensure that construction materials and/or wastes could not fall into agricultural land in the subproject areas;

- Discarded lubricant, chemicals must be kept in dry area or covered if raining;

- Toxic waste, if any, need to be collected, transported and treated according to Circular No. 36.2015/BTNMT of MONRE;

- Regularly collect solid wastes and transport to local disposal area (Gung Re disposal landfill) where had agreed with local authorities/local people of Di Linh town & Bao Thuan commune;

- Provide dustbins and mobile septic tanks in all construction sites and worker camps;

- Wastewater from worker camps needs to be collected and treated before discarded to environment.

The areas in East and West reservoirs, area along Ka La flood bypass and 03 worker camps

6 Local flooding

- Setting up appropriate construction schedule at the sites to avoid rainy season, especially for excavation activities;

- Manage storage of materials and/or waste to avoid them falling into water flows in irrigation canals as well as blocking intakes and culverts;

- Regularly checking flow situation of intakes, culverts and implementing digging if materials/waste block water flow;

- Placement of washing instruments/ vehicles next to the rivers, streams, existing canals will not allowed such East, West and Ka La reservoirs;

- Monitoring the compliance of construction contractor with mitigation measures;

Upgraded road and culverts along Ka La food bypass of Bao Thuan commune and East reservoir of Di Linh town

7

Unsafe for travelling and business during the road construction (Traffic safety)

- Install signals at site to regulate and minimize speed of vehicles or signals of work under construction, especially at the intersections;

- Install lamps at night at construction sites; - Inform the community about construction

schedule through informal public consultation or any local people meetings and notice boards of Di Linh town and Bao Thuan commune;

Along the upgraded roads in Ka La flood bypass and East reservoir of Di Linh, and on roads which local people for travelling inter-commune roads


93


- Construction activities of rural roads should be done section by section, to minimize temporary acquired areas on roads as well as remain road function during construction period;

- Training for drivers of sub-project as well as worker to work safety and could warning peoples passing nearby the sites

- At least 01 worker will monitor, in peak hours, the in and out of construction sites of vehicles as well as warning people to ensure traffic safety;

8 Impact on terrestrial ecology

- Only trees vegetation as well as agricultural plants of local people in areas of construction that have been have been assessed and compensated will be cut down;

- Any wrong cutting plants and/or fields damaged during construction will be compensated to local people according to voluntarily agreement;

- Re-plant vegetable cover section by section after construction work completed to return landscape for construction places;

Upgraded roads; and in reservoirs

9 Impact by solid wastes

- Abundant volume (approximate 97,000m3) has to be regularly removed to dumping sites agreed with Di Linh town and Bao Thuan communes CPCs, disposal site is Gung Re landfill;

- The transportation of discarded soil to disposal areas will be managed and implemented mitigation measures in transportation and air quality management to reduce pollution. They are planning transportation schedule, covering trucks and washing truck regularly;

- Equip 06 dustbins and 03 mobile septic tanks to work sites for waste collection and treatment;

- Construction contractor need to sign a contract to weekly collect solid waste at 03 worker camps with a local solid waste collection agency in Di Linh town;

- Disposal of solid wastes into reservoirs canals, stream, other water sources such as East, West and Ka La reservoirs, as well as agricultural field and public areas shall be prohibited;

- Burning of construction and domestic wastes shall be prohibited;

03 worker camps and all sub-project construction sites taken place in Di Linh town and Bao Thuan commune


94


10 Impacts to existing infrastructure

- Work with existing infrastructure owners (electricity, water...) to identify locations of underground items if any;

- Obtain the agreement with local authorities in using the transport routes and if any downgraded observations due to project activities have been found, the contractors have to fully repair and compensate;

- Load capacity of trucks do not exceed local bridges /roads (it is the best to use truck with lower than 10 tons);

- Timely repair damaged road surfaces and bridges;

- After construction has completed, all public facilities must be re-checked to ensure theirs functions have not been affected by sub-project activities, if any damage has been complained, contractor need to be responsible for repairing and compensating;

All roads/sluices or bridges, which are used by the sub-project in Di Linh town and Bao Thuan commune

11

Disturbance to local people’s life due to crowded workers

- A recruitment priority should be given to local workers:

- Register provisional residence for workers staying at 03 camps;

- Contractor needs to regulate camp sanitation regulations;

- Carry out HIV/AIDS prevention program and sex transmission infection;

- Propagate and raise awareness of the construction workers to maintain discipline, habits and customs and create good relationships with local people, reduce social evils;

- It is best if contractors organize meals for all workers at each site to ensure hygiene and food safety;

- Spray insecticides at 03 worker camps; - Train and guide labor safety measures and

prevention of common diseases for workers;

Di Linh town and Bao Thuan commune

12


- Construction contractor needs to register number of labor working for sub-project to local authority;

- Regularly testing general and occupational health, and infectious diseases for workers as regulated by Ministry of Labor;

- Provide sufficient labor safety to workers such as safety shoes, helmets, harness etc. Instruct workers how to use and patrol regularly to ensure compliance;

- A first aid kit will be provided at each

People in Di Linh town, Bao Thuan commune and construction workers of sub-project;


95


construction site to ensure patients can receive first aid timely before transporting them to the medical station/ hospital; Collaborate with commune clinic center to receive additional support;

- Install power network at site in accordance with safety regulations of the state and ensure that the power lines, the power outlets to be located at dry and safe places;

- Install warning signs at the electric receptacles;

- Install information signs about the project, the labor regulations at site;

- Install fences, warning signs at the intersection between the drains and roads;

- Remain the light during the nigh time on all construction sites.

- Construct temporary drainage ditches to drain water at site, prevent water logging;

- Preparing emergency responses that could occur during construction such as fire;

13

Impacts around the mines of soil, stone and sand

- The soil will be utilized from excavated borrow pits in reservoirs’ areas & in Gung Re borrow pit (8.5 km to flood bypass road in Ka La reservoir ), thus no need to transport long distance from mines as well as reduce impacts of dust and traffic safety;

- However, during excavation period, soil mines need to implement mitigation measures to environment including: Exploit section by section to avoid dust generation, landslide; and prepare recovery plan for exploitation areas. Workers who working in soil mines have to have PPEs and follow safety guidelines. Transporting materials need to be covered to avoid dust & solid waste (discarded soil) generated on the roads, and duration of transportation need to avoid night time as reducing traffic safety because lacking light condition;

- Any damage of transportation routes has to be resolved as in infrastructure damage section;

- The stone and sand materials will be purchased from Tam Bo stone mine in Duc Trong district (23 km), where environmental issues are controlled and mitigated by local authorities and mines’ owners. Construction contractor needs to check license and environmental mitigation

03 borrow pits, 01 sand mine in Di Linh town and Bao Thuan commune


96


measures of such mines; - The dust and scattered materials during

transportation are temporary and minimized by covering and scheduling;

14


- The construction of East and West reservoirs of Di Linh town must be scheduled and planned considering water availability for fields. Those plans need to be consulted with local DARDs (Lam Dong and Di Linh) and commune (Di Linh town) and informed to local residents;

- The construction diversion flows need to be implemented to ensure irrigation water for cultivated areas in downstream of the West & East Di Linh Reservoirs

- Construction need to implemented section by section to minimize impacts

- Monitoring compliance of contractor, to ensure measurements will be implemented properly;

East and West reservoirs of Di Linh town and theirs downstream areas

15


- The construction need to be consulted with local DARDs of Lam Dong province and Di Linh district, Di Linh town and Bao Thuan commune as well as announced in notice boards of such town and/or commune;

- For road component: Construction method should be section by section to ensure travelling ability on upgraded roads;

- For East & West reservoirs: Implement construction diversion flow to ensure water supply for irrigation. During dry season (from November – May), monitor water flows in diversion flows of East & West reservoirs to ensure water supply for downstream;

- During construction period, any impact on irrigation system result in secondary negative impacts on crops/agricultural land of local people need to be compensated or support those people properly;

Areas served by East and West reservoirs and roads in East reservoir and Ka La flood bypass

16 Cultural objects or graves found

- If any cultural object and/or grave has been found during construction phase, the construction activities at those places need to be temporarily stopped and informed to local authorities to deal with;

- The compensation need to be implemented after consultation with impact households (if graves) and, the construction contractor have to support HHs/local communes to resettle

Potential in all construction places, especially in upgraded roads and news


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graves/cultural objects;

17 Environmental recovery activities

- During construction, any damage to local infrastructures will be compensated and mitigated by construction contractor as mentioned above;

- The environmental issues emerged during recovery activities such as noise, dust, gases, solid waste, hazardous waste, water pollution etc. will be handled with similar measures of related section above;

- Re-planting undesirable cutting plants after completing construction activities;

- Repairing damaged infrastructures as soon as possible;

- Flow water into East and West reservoirs of Di Linh, and protect areas from fishing activities to recover aqua-ecosystem;

- Leveling and/or embanking borrow pits as well as covering by plants to recover surface as well as avoid landslide after exploitation completed;

East and West reservoirs of Di Linh town and upgraded Ka La flood bypass

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