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Environmental and Social Impact Assessment of Mahl Hydropower Project
Volume I: Executive Summary
Final Report
HBP Ref: R7ES5MLP
Date: December 26, 2017
玛尔电力开发有限公司 MAHL POWER COMPANY (PVT.) LTD
Mahl Hydropower Project
Environmental and Social Impact Assessment
Executive Summary (Volume I)
HBP Ref.: R7ES5MLP
December 26, 2017
Shanghai Investigation Design & Research Institute Co. Ltd.
Islamabad
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Hagler Bailly Pakistan Executive Summary R7ES5MLP: 12/22/17 iii
Executive Summary
Mahl Power Company Limited (MPCL), a subsidiary of China Three Gorges
International Corporation (CTGI), Beijing, intends to construct the 640 megawatt (MW)
Mahl Hydropower Project (Project) along with related infrastructure on the Jhelum River,
about 5 km upstream of the confluence of Mahl Nullah and Jhelum River. Jhelum River
forms the boundary between the Pakistani provinces of Punjab and Khyber Pakhtunkhwa
(KP), and Azad Jammu and Kashmir (AJK). The Project falls within both provinces of
Pakistan as well as AJK. The location of the Project is shown in Exhibit I.
Project Background
The Mahl Hydropower Project was first identified in 1984 as part of the study titled
“Hydroelectric Inventory Ranking and Feasibility Studies for Pakistan (Phase A)” by
Montreal Engineering Company, Canada (Monenco). A number of studies were also
carried out after 1984, and in May 2014 the Shanghai Investigation, Design & Research
Institute (SIDRI) carried out an investigation into the site and released a study. Following
the release of the SIDRI study experts from CTG, CWE Investment Corporation (CWEI),
HYDROCHINA and SIDRI visited the site and undertook further investigations. Most
recently a Feasibility Study of the Project (FS) was conducted by SIDRI in association
with two local consultants, Associate Consulting Engineers (ACE) and Mirza Associates
Engineering Services (MAES). An Environmental and Social Impact Assessment (ESIA)
was included in the FS. However, a separate ESIA is needed to meet the requirements of
the GoP as well as international lending organizations.
SIDRI has now contracted the services of Hagler Bailly Pakistan (Pvt.) Ltd. (HBP) for an
updated Environmental and Social Impact Assessment (ESIA) of the Project and to
develop a Resettlement Action Plan (RAP) that meets the standards and guidelines
prescribed by the International Finance Corporation (IFC), and conforms to
environmental legislation of AJK, Punjab and KP.
Study Area
The selection of the Study Area for the ESIA took into account environmentally sensitive
receptors that are most likely to be impacted by the Project’s development activities
during construction and operation. For assessment of cumulative impacts, the Study Area
was selected to be large enough to allow the assessment of the Valued Ecosystem
Components (VECs) that may be affected by the Project activities. The Study Area
defined for the baseline studies and impact assessment is shown in Exhibit II.
Policy and Legal Framework
The ESIA process and the environmental and social performance of the Project will be
governed by the policies of the GoP, the laws of the Government of AJK, IFC’s PS, and
international environmental agreements to which Pakistan is a party.
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Exhibit I: Mahl Hydropower Project Location
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Exhibit II: Study Areas
Punjab Environmental Laws
In 2012, Punjab promulgated the Punjab Environmental Protection Act 1997 – Amended
18.04.2012 (Punjab Act). The responsibility to implement the provisions of the Punjab
Act lies with the Punjab Environmental Protection Department (Punjab EPD) or the
Punjab-EPA. The act requires proponents to submit either an EIA or IEE, as the case may
be, and obtain approval in respect thereof before commencing construction.
KP Environmental Laws
The KP Environmental Protection Agency was established in 1989. The KP
Environmental Protection Act 2014 is applicable to a broad range of issues and extends to
air, water, industrial liquid effluent, and noise pollution, as well as to the handling of
hazardous wastes. As the powerhouse of the Project is located in AJK, this Project will be
transferred to GoAJK after completion of the term of the power purchase agreement
(PPA).
AJK Environmental Laws
The Azad Jammu and Kashmir Environmental Protection Act 2000 (the “AJKEPA 2000”
or the “Act”) is the principal legislative tool used for regulating environmental protection
in the state of Azad Jammu and Kashmir. The responsibility to implement the provisions
of the Act lies with the Azad Jammu and Kashmir Environmental Protection Agency
(AJK-EPA). There are other instruments (regulations, rules, standards, and guidelines)
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subservient to the AJKEPA 2000 which together with the Act form the basic
environmental law of AJK. The AJKEPA 2000 recognizes that it is necessary to fulfil the
obligations envisaged under the biodiversity related Multilateral Environmental
Agreements ratified by the GoP.
IFC’s PS on Social and Environmental Sustainability
The IFC’s PSs are applied to manage social and environmental risks and impacts and to
enhance development opportunities in private sector financing in IFC member countries
eligible for financing. Together, the eight PSs establish standards that the client is
required to meet throughout the project life by IFC or other relevant financial institution.
Mahl Power Company (Pvt.) Ltd. (MPCL) will follow PSs of IFC for this Project and
will ensure that the contractors/ subcontracts (subcontractors of the contracts) appointed
by MPCL all follow the IFC’s PS on environmental and social sustainability.
Project Description
The Mahl HPP is a run-of-river hydropower project to be constructed on the Jhelum
River. The catchment area of Jhelum River at the proposed dam site is 25,334 square
kilometer (km2), with a maximum mean monthly flow of 1,690 m3/s in June and a
minimum of 204 m3/s in January. The Mahl HPP Dam and Powerhouse are located near
the village of Lasrai in Punjab and Sari Bandi in AJK.
Power Generation Capacity
The proposed Project is designed to operate with the reservoir at normal operating level
of 585 meters above mean sea level (m amsl) with reservoir capacity of
139.67 million m3. At these conditions, the total installed capacity of the hydropower
station will be 640 MW.
Land Requirement
It is estimated that the Project will involve the acquisition of about 1,017.7 hectares (ha)
of land. Of this 17.8 ha (2%) is built up, 75.1 ha (7%) is agricultural land, 99.3 ha (10%)
is waste land, 447.7 ha (44%) is forest land, 130.7 ha (13%) is floodplain land and 247.0
ha (24%) is currently river water surface. The total land to be acquired includes land
required for the construction of dam, powerhouse, access roads, project colony,
realignment of roads, bridges and other civil structures; ponding area as well as a buffer
zone.
Main Components of the Project
Dam and Reservoir
The dam will be a roller-compacted concrete mass gravity dam with a maximum height
of 88.4 m. The live operating storage will be 38.34 million m3. The reservoir will have a
length of 29 km and will inundate an area of 6.7 km2.1
1 Shanghai Investigation, Design & Research Institute Co. Ltd. (SIDRI) in association with Associate
Consulting Engineers (ACE) and Mirza Associates Engineering Services (MAES), January 2017, Mahl Hydropower Project Feasibility Report, Volume I Main Report for the China Three Gorges International Corporation (CTGI)
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Reservoir Sediment Flushing
The Jhelum River carries an annual suspended sediment load estimated at 30.27 million
tons with an annual bedload of 4.54million tons. After 10 years of operations, the delta
will move to the front of dam and the changes in the longitudinal section of the river
channel will be reduced significantly. After reservoir sedimentation equilibrium, under
the operation mode of power generation only, sediment concentration of inflow will still
be higher than that of the outflow. Therefore, there will be sediment deposition in the
reservoir. The remaining reservoir capacity will be about 27 million m³ under the normal
operation level of which live storage will be about 18 million m³.
Waterways and Intake Structure
The power intake and the dam body are combined as a whole. The power intake for
power generation is located on the dam section and is formed of three independent power
intakes arranged in line. They are designed to deliver water into the powerhouse at the toe
of the dam through the penstock located on the downstream dam surface.
Powerhouse
The powerhouse will be a surface powerhouse placed at the toe of the dam. It is located
on the left bank of river. The longitudinal axis of the powerhouse is parallel to the dam
axis, and is 110 m to the dam axis. The main powerhouse, auxiliary building and erection
bay are arranged in a row. According to the preliminary layout, the powerhouse will have
a span of 34 m and a 3 unit scheme. The powerhouse will accommodate three Francis
turbine generator units of 213.3 MW capacity each. The main transformer is arranged on
548.50 m platform. GIS room is arranged on 560.50 m floor.
Construction Material and Waste
Aggregates
The main natural construction materials required for the Project are coarse and fine
concrete aggregates and impervious earth fill material. The material requirements for the
Project are estimated as follows:
Coarse aggregate 2.76 million tons
Fine aggregate 1.10 million tons
Impervious soil 28,600 m³
Filling material for cofferdams 329,900 m³
Waste Disposal
The waste disposal areas are planned along the main Jhelum River both upstream and
downstream of the dam and on both the left (AJK) and right (Punjab) banks. A total of
six are planned of which two are located upstream left bank and two are upstream right
and two are downstream right bank.
Construction Timeline
Construction will require 6 years (72 months). Some of the major activities include
construction of diversion tunnel, closure of the riverbed, filling of cofferdam and
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drainage of foundation pit, foundation pit excavation of the riverbed of dam, concrete
placement and metal structure installation in the dam sections.
Stakeholder Consultation
The consultation process was designed to be consistent with the relevant national
legislation and the IFC’s PS on social and environmental sustainability. Consultations
with the Project stakeholders were undertaken in late August-early October. A
Background Information Document (BID) prepared in English and Urdu that informed
the stakeholders about the ESIA process and provided a background about the Project
was shared with the stakeholders. The feedback from the communities was recorded and
the detailed logs of consultations were prepared. A basin wide study approach was
adopted, and 19 rural communities were consulted along the Jhelum River. Local
government and officials were also consulted.
Summary of Consultation
The following is a summary of concerns expressed by the communities:
Increased heavy traffic in the area could create difficulties for the locals.
Heavy traffic and machinery may damage the road network.
Blasting may result in drying of water springs. It may also affect nearby houses.
The risk of landslides may increase.
Grazing of livestock may be affected.
Mobility of women may be affected due to influx of outsiders.
Removal of trees could negatively impact the environment.
Employment of local eligible men and women is recommended.
The Project should contribute to the provision of basic amenities such as safe
drinking water and basic education.
Graves and shrines may be affected.
People who fish from the river may be affected.
The following is a summary of concerns expressed by the institutional stakeholders:
The fish fauna present in the Jhelum River is a major concern. In particular, the
abundance of fish species, their feeding habits and the food chain they depend on,
their breeding behavior, habitat fragmentation and impacts on movement.
Mitigation measures are needed for these species.
Impacts on terrestrial biodiversity are a concern. Data collection in the area is
needed to ascertain the biodiversity in the area to be affected, including the
inundated area. The habitat needs to be assessed in line with IFC PS6.
Climate change related impacts are important to assess. The data used in the
assessment needs to be AJK specific and future trends in climate need to be
considered.
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The locals in the area rely on forest resources. The Project’s impacts on these
need to be assessed and mitigated against. There are also species of concern in the
area.
Some of the Project facilities are located in an area which is declared as a
National Park. Disturbances to vegetation and habitat are very important to
consider in this development. Protection of biodiversity is a key issue.
As this Project is part of a cascade of projects, catchment level impacts are
important to consider and management at the catchment level is important.
Integrated Watershed Management is recommended. For the same reason,
cumulative impact assessment is very important.
Impacts on the local community are important to consider especially on the
people who will be displaced. Livelihood restoration is very important as is
compensation for loss of land.
In implementing mitigation measures, compliance with laws is very important.
Impacts on water quality are important to consider.
Dumping of waste needs to be done responsibly and in designated areas.
Management of the reservoir is a key concern, especially with respect to
sedimentation.
Management of traffic and increase in vehicle movement due to Project-related
activities is a concern.
Overview of Physical Environment
Topography
The area falls at the western edge of the Higher Himalaya range. The relief in the
catchment area up to Mangla Dam, south of the Project site, varies between 234 m amsl
and 6,283 m amsl. Approximately 58% of the catchment area of the Project area has an
elevation in the range of 2,000–4,000 m amsl. The dam site is at an elevation of
532 m amsl.
Geology and Seismic Hazards
Geology
The Project area is located on the Himalayan thrust nappe. As for the strata in this area,
the northern part of this area consists of the Precambrian crystalline rocks and Paleozoic
metamorphic rocks; the middle part consists of the molasse deposited in the fore-land
basin in the Tertiary period, which mainly belong to the Murree subgroup of Rawalpindi
group of the Miocene Epoch and the Siwaliks group of the Pleistocene Epoch in the
Pliocene epoch-Quaternary period; the Punjab plain at the southern part of this area
consists of quaternary alluvium. The exposed strata in the areas near the Project area
mainly include Precambrian, Mesozoic Triassic-Jurassic, Paleogene, Neogene and
Quaternary strata. The Precambrian strata belong to Abbottabad group and are mainly
distributed in the northwestern part of the nearby area. The Triassic-Jurassic strata are
only distributed at the Northwest corner of the nearby area. The Paleogene strata are
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exposed in the area between the Jhelum fault-Nathia Gali fault and the Murree fault. The
Neogene stratum is mainly exposed in the east and south parts of the area between the
Jhelum fault and the Murree fault. The lower part is the Rawalpindi Group, namely the
Murree Formation and Kamlial Formation. The exposed strata of the Murree Formation
are the most common ones. The upper part is the Siwaliks Group which consists of the
Chinji Formation, Nagri Formation, Dhok Pathan Formation and the Soan Formation.
Among the Quaternary strata, the alluvial, proluvial, diluvial, colluvial and eluvial strata
are exposed.
Seismic Hazards
The Project site is located in a seismically active zone affected by the continuing
northward drifting of the Indian plate and its subduction below the Eurasian plate. A
number of regional and local faults are known to be active in the area. It is located at the
southern foot of Himalayas. The Himalaya is the world's youngest and largest orogenic
belt formed by the collision between the Indian plate and the Eurasian plate. There are
region syntaxis with sharp turns at both the east and west ends of the Himalaya. The
western syntaxis consists of the following tectonic units (from north to south): the
Karakorum Plate, Karakorum Suture Zone (extends westwards into the Indus River-
Yarlung Zangbo River suture zone), Kohistan-Ladakh Island Arc, Indus River-Yarlung
Zangbo River suture zone and Nanga Parbat-Haramosh Massif, the faults at the primary
boundary of Himalaya, and the Hazara–Kashmir Syntaxis. The Project area is located at
the southern part of this syntaxis.
The major regional thrust faults related to intercontinental collision include Main Mantle
Thrust (MMT), Main Boundary Thrust (MBT), Panjal Thrust (PT), Main Central Thrust
(MCT), Himalayan Frontal Thrust (HFT) and Salt Range Thrust (SRT). The planes of
these faults run nearly parallel to the collision boundary. The main faults developed in the
near-field include the Jhelum fault (F1), Nathia Gali fault (F2), Murree reverse fault (F3),
Muzaffarabad reverse fault (F4) and Riasi reverse fault (F5).
The depth of the earthquake focus in this region is mainly within 1 to 250 km. Most of
the earthquakes are moderate to deep-focus earthquakes. Between 34ºN and 36ºN, the
depth of the earthquake focus increases gradually (from south to north) from 70 to
100 km to 250 to 300 km to form an earthquake focus belt which inclines northwards.
This shows that this region is the location where the Indian plate collided with the
Eurasian plate
For seismic safety evaluation of the Project site, a catalogue of earthquakes was compiled
for the region extending over a radius of 300 km from the Project site in the Feasibility
Study. Both the historic and recent instrumental recorded data have been compiled for the
period AD 1555 to 2014. The catalogue includes 1,554 earthquakes within the region, of
magnitude M > 4.0 with focal depth of not more than 50 km (or unknown depth). This
data with focal depth of up to 50 km is considered to be more relevant to the seismic
environment of the Project site. The spatial distribution of seismic activity within the
region is non-uniform with a prominent concentration in Hindukush zone located
northwest of the Project site. The other concentration is on Hazara-Kashmir Syntaxis in
the north and another one is in the southeast. During the record period, the strongest
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earthquake of magnitude 8.0 occurred at Kangra, India in 1905 and the Kashmir
earthquake with magnitude of 7.6 occurred in 2005.
Climate
The available data from five Pakistan Meteorological Department (PMD) stations Garhi
Dupatta, Muzaffarabad, Murree, Kakul and Rawalakot lie within a radius of 50 km from
the site. Thirty-years (1961-1990) of data was available for these stations. Of these five
stations, the data from Garhi Dupatta weather station was selected for analysis as the
elevation of the station is almost similar to the Project Site and its location is closer to the
Project site.
The climate analysis of Project area was carried out by classifying it into different
seasons as follows:
Summer (mid-March to mid-June)
Characterized by high temperatures, moderate rainfalls with moderate humidity and high
speed-winds.
Summer Monsoon (mid-June to mid-September)
The summer monsoon, hereafter referred to as the Monsoon, is characterized by high
temperatures (although milder than the summer), significantly high rainfalls with high
humidity and moderate speed-winds, slightly lower than summers.
Post-Monsoon summer (mid-September to mid-November)
Characterized by moderate temperatures, low rainfalls with moderate humidity, as the
humidity again reduces after monsoon and low speed-winds.
Winter (mid-November to mid-March)
Characterized by very low temperatures, moderate rainfalls, with an increasing amount of
rainfall at the end of the winter, with relative humidity greater than post-monsoon
summer and moderate speed-winds.
Ambient Air Quality
The pollutants selected for evaluation, based on the expected emissions from the Project
activities and the level of risk to human health posed by these pollutants, are as follows:
Respirable particulate matter—Coarse (PM10) and Fine (PM2.5)
Sulfur dioxide (SO2)
Oxides of Nitrogen (NOX)—Mainly Nitrogen dioxide (NO2) and Nitric oxide
(NO)
The emission sources include,
Traffic: Combustion of petrol and diesel is a source of NOx and SO2 emissions
with diesel burnt in heavy transport vehicles is the main source of SO2. Vehicle
exhaust result in PM2.5 emissions whereas tire movement, especially on tracks and
unsealed road result in dust emissions (PM10 and PM2.5).
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Wood/Liquefied Petroleum Gas (LPG) burning: Wood burning and LPG are
used for cooking and heating. Due to the incomplete combustion in the primitive
stoves wood is a significant source of PM10, PM2.5 whereas combustion of LPG is
a significant source of NOx and both sources also results in SO2 emissions.
Based on the primary data collection and sample analysis, findings were:
The annual and 24-hour concentrations of SO2, NOx, NO2 and NO comply with
both the PEQS/NEQS and IF-EHS limits. This leaves a wide room to incorporate
emissions of the proposed Project. The maximum levels of NOx, NO2 and NO are
8.27, 4.78 and 3.49 µg/m3, respectively observed at A4 (Dobera village). The SO2
levels at all sites were below the LOR. NO2 and NO results were also very low
and at max 12 to 13% of the respective annual limits. This is because of a low
amount of sources of gaseous pollutants such as combustion from vehicle engines
and household stoves.
The 24-hour PM10 concentration comply with both the PEQS/NEQS and IFC-
EHS limits at all sampling locations. The reference location (A4), located at a
distance from the road and within a low density settlement, has the lowest PM10
concentrations (82.0 µg/m3). Nevertheless, the presence of dust at A4 shows that
there are natural sources of dust, such as windblown dust from barren mountains.
The 24-hour PM2.5 concentration is almost constant at about 40% of the PM10
concentration. The PM2.5 concentrations comply with the IFC 24-hour – interim
target 1 limits. However, due to the relatively more stringent NEQS and PEQS
standards for PM2.5, the concentration of PM2.5 exceeds the PEQS/NEQS at A1,
A2 and A3.
The highest readings of PM10 and PM2.5 were recorded at A1 (Sari Bandi village)
which is a settlement along the road.
Water Resources, Hydrology, Flows and Sediment
Water Resources
Water resources in the area consist of surface water including rivers and nullahs and
groundwater including mountain springs, and dug wells.
The Project reservoir and dam are located on the main Jhelum River. This
section describes the hydrology of the Jhelum River up to Mangla Reservoir. The
catchment up to Mangla Reservoir encompasses an area of approximately 33,461 km2
(55% of which lies within Indian Administered Kashmir). The catchment area up to the
dam site is 25,334 km2, which is 76% of the catchment area up to Mangla Dam.
The source of water of Jhelum River is both snowmelt and seasonal rainfalls. Within
Indian Administered Kashmir, the Jhelum River and its principal tributaries drain the Pir
Panjal Range and the southern slopes of the Higher Himalayas. The river flows through
the valley of Kashmir (alluvial plains) and enters Wular Lake, which significantly
attenuates the seasonal flood during summer. It then follows through a gorge across the
de facto border between India and Pakistan (the ‘Line of Control’ or ‘LoC’), and flows
generally northwest, to Muzaffarabad. At Muzaffarabad, the Jhelum River bends and runs
generally south towards Mangla Reservoir.
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The major tributaries of the Jhelum River within the Mangla Dam catchment are the
Neelum, Kunhar, Kanshi and Poonch rivers. The Poonch and Kanshi rivers joins the
Jhelum River at Mangla Reservoir, and are not described here.
Flows and Hydrology
The Project Feasibility Study calculated the dam site flows for the period of 1970-2014
by using the combined flow records of Azad Pattan and Karot gauging stations. The
annual average flow at the dam site is 796 cubic meter per second (m3/s). Mean annual
flows during the time series show the minimum mean annual flow of 371 m³/s was
recorded in 2001 while the maximum mean annual flow of 1,140 m³/s observed in 1996.
The annual average suspended sediment is 1.1 kilogram per cubic meter (kg/m3) and the
total annual bedload is 4,540,000 tons.
The hydrology at dam site is typical of Himalayan rivers, characterized by peak flows in
the month of May associated with melting of snow at higher elevations in the catchment,
followed by declining flows in the summer supported by monsoon rainfall and continuing
snowmelt in the months of July and August. The dry or low flow winter season typically
extends from October through February when the flows are reduced to the order of one
sixth of peak in the month of May. Failure of winter rains associated with westerly
systems can result in extreme lower flows, while unusual rain events in the catchments in
the monsoon season cause extreme floods that are known to cause significant damage to
infrastructure and property.
Community Water Supply Census
A hydro-census was carried out to map the community water resources for villages near
Project facilities. A 500 m buffer around the Project facilities that may need excavation
(including the dam and underground tunnels) was demarcated for the survey to account
for the distance to which the impact on ground water might possibly extend.
A total of 19 water resource infrastructure points (18 mountain springs and a single dug
well) were identified and characterized within the hydro-census area. The total number of
households relying on the springs within the area covered by the hydro-census is 140.
These springs are the sole potable water supply for the majority of households. 61% of
active water sources are used to supply drinking water and 89% of the springs are used
for livestock drinking water. This is in line with the socioeconomic surveys and
discussions during the surveys across the Study Area, where it was reported the drinking
water supply is largely, given some exceptions, from springs, and, given some
exceptions, the livestock do not typically venture close to the river to drink river water,
and are therefore, also reliant on spring water.
Water Quality
Water quality samples from Jhelum River, tributaries and community springs were
collected and analyzed for establishing baseline conditions for surface and groundwater.
Four samples were collected and analyzed from local water resources. These include one
from river, two from springs and one from a nullah. The findings were,
Surface water (W1 and W2) has a higher pH (8.19 to 8.21) whereas ground water
(W3 and W4) was close to normal (7.01 to 7.18) Ground water was close to
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normal values. All samples are therefore within the 6.0 to 9.0 pH range as
prescribed by the NEQS/PEQS for drinking water.
Surface water had high turbidity (209 to 270) whereas ground water turbidity is
less than 1 and compliant with standards for drinking water.
Aluminum was higher than NEQS in the surface water. High Aluminum levels
have been reported in the Jhelum River and tributaries in previous water quality
sampling as well. The higher values of Aluminum are likely naturally occurring
and can be attributed to higher colloidal particles in the surface water. All other
metals were either not detected or detected at quantitates within the NEQS/PEQS
for drinking water.
Other analyzed metals including Mercury were not detected or within
NEQS/PEQS if detected for drinking water standards.
All samples, including ground water springs that are used for drinking reported
bacterial contamination at levels not suitable for drinking.
Sediment
The planned Kohala HPP and under construction Neelum-Jhelum HPP located upstream
of the proposed Project, have small capacities for daily regulations and both will need
flushing measures for sediment evacuation. Therefore, the construction and operation of
the projects upstream of Mahl HPP will have limited impacts on sediment inflow to the
Project and as such it has been neglected while estimating the long-term sediment inflow
to the Project reservoir.
Suspended sediment into the reservoir was computed in the Feasibility Study using Azad
Pattan and Karot gauging station data for the period of record (1970 to 2014 except the
missing record of 1993) and data observed by SIDRI in 2015. Allowance for the
intermediate watershed area between the gauging stations and the dam site was made.
The computed average annual suspended sediment load at the Project dam site is 30.27
million tons with 77.84 and 3.62 million tons being the maximum and minimum during
the years 1992 and 2001, respectively. The suspended sediment concentration was
calculated to be 1.21 kg/m³ on average.
Noise Levels
Noise measurements were taken at four sites and readings were taken for 24 hours at each
site.
The daytime noise levels at the Project site are within the limit of 55 dbA. The nighttime
noise levels were measured between 50 and 62 dbA at night. This is above the nighttime
limit of 45 dBA. The reference location was the lowest during the hours between 9 am
and 5 pm demonstrating limited anthropogenic contributions to noise. However, at night
time an intense monsoon shower took place starting around 9 pm and building in
intensity up till midnight. The noise levels due to monsoon rainstorm were high and
peaked around 62 dbA.
The Jhelum River is a significant source of noise near the dam site. Noise levels at the
dam site were observed to level of between 50 and 55 dBA between the hours of 8 pm
and 6 am.
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Traffic
A traffic count was conducted on July 31, 2017 for 16-hour period (6 am to 10 pm) at
Sari Bandi (33° 57' 10.19" N, 73° 32' 46.23" E), on the both direction (to and away from
Project site) on the road route that will be used for the Project related transportation of
services during construction and operation of the Project. The keys findings were,
The hourly traffic volume can be observed that both directions have similar traffic
that peaks between 2 to 5 pm.
Overall very low level of traffic was observed at an average of about 11 vehicles
per hour, approximately 50% of which were bikes.
No trucks (of any size) were observed during the survey. Heavy transport vehicles
consisted entirely of buses (2 one in either direction), tractors and trailers.
Overview of Biodiversity Values
Aquatic Biodiversity
The main aspects of the aquatic biodiversity in the Aquatic Study Area include the fish
fauna, macro-invertebrates, and riparian vegetation.
Overview of Fish Fauna in Jhelum River
The long distance migratory species found in the Jhelum River and tributaries include
Alwan Snow Trout Schizothorax richadsonii and Mahaseer Tor putitora, as well as
Suckerhead Garra gotyla, Indus Garua Clupisoma garua and Pakistani Labeo Labeo
dyocheilus. They tend to migrate upstream in summers where water is cooler. The species
Nalbant’s Loach Schistura nalbanti, Stone Loach Schistura alepidota, Arif’s Loach
Shistura arifi and Flat Head Catfish Glyptothorax pectinopterus are also found in Jhelum
River and tributaries upstream and downstream of the proposed dam. Species of food
value in the area are Reba Carp Cirrhinus reba, Indus Garua, Pakistani Labeo, Alwan
Snow Trout and Mahaseer. Apart from these, Wild Common Carp Cyprinus carpio and
Silver Carp Hypophthalmichthys molitrix are also commercially important species but
these are introduced.
At least a total of 36 species have been reported from the Jhelum River in the Aquatic
Study Area based on the surveys carried out in July and October 2017 as a part of this
study, July 2016 as a part of the Biodiversity Strategy for Jhelum Poonch River basin –
Preparatory Phase,2 April 2016 for the Environment and Social Impact Assessment of
Kohala Hydropower Project,3 Biodiversity Management Plan of Karot Hydropower
Project.4 The information was also collected from Dr Muhammad Rafique, a fish expert
with the Pakistan Museum of Natural History (PMNH). Out of these, five species are
long distance migratory while one species is endemic to the Jhelum Basin.
2 Hagler Bailly Pakistan, September 2016. Biodiversity Strategy for Jhelum Poonch River basin –
Preparatory Phase, for the International Finance Corporation, Washington D.C. 3 Environmental and Social Impact Assessment (ESIA) Report of the 1,124 MW Kohala Hydropower
Project for Kohala Power Company (Pvt.) Limited, August 2016. 4 Biodiversity Management Plan of the Karot Hydropower Project for Karot Power Company (Pvt) Limited,
February 2017.
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Migratory Fish Species
Based on the surveys carried out in July and October 2017, the Aquatic Study Area
contains five long distance migratory species, the Indus Garua, Suckerhead, Pakistani
Labeo, Alwan Snow Trout, and Mahaseer. Of these two species the Mahaseer and Alwan
Snow trout are of conservation importance based on the IUCN Red List 2017 as these are
listed as Endangered and Vulnerable respectively.
Mahaseer is a widely distributed species in south and southeast Asia, with a restricted
area of occupancy. However, the species is under severe threat from overfishing, loss of
habitat, decline in quality of habitat resulting in loss of breeding grounds, and from other
anthropogenic effects that have directly resulted in declines in harvest in several
locations. In addition, with several dams planned for construction in the future in the
Himalayan region, they could have a more drastic effect on tor populations blocking their
migrations and affecting their breeding.5 A total of 11 specimens of the species were
observed during the July 2017 surveys in both the main river and tributaries while no
Mahaseer specimen was captured during October 2017. A map showing the range of the
species is provided in Exhibit III.
Endemic Fish Species
There is one fish species endemic to the Jhelum Basin, found in the Aquatic Study Area
the Nalbant’s Loach. The range for this species is shown in Exhibit IV. It prefers shallow
water, mainly riffle habitat in tributaries. Damming will alter its habitat irreversibly
causing drastic population declines. However, a Critical Habitat Assessment, carried out
as part of the Ecology Baseline, determined that the Project is not located in Critical
Habitat based on the population of this endemic species in the Discrete Management Unit
(DMU) defined for the Critical Habitat Assessment of the Project, which includes the
Aquatic Study Area. During the surveys carried out in July and October 2017, a total of
57 specimens of the Nalbant’s Loach were observed in the tributaries within the Aquatic
Study Area.
5 Jha, B.R. & Rayamajhi, A. 2010. Tor putitora. The IUCN Red List of Threatened Species 2010:
e.T166645A6254146. http://dx.doi.org/10.2305/IUCN.UK.2010-4.RLTS.T166645A6254146.en. Downloaded on 14 August 2017.
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Exhibit III: Range of the Mahaseer
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Exhibit IV: Range of the Nalbant’s Loach
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Macro-invertebrates
Based on surveys carried out for the ESIA the most abundant macro-invertebrate taxa
reported include Baetis sp. followed by Chironomidae sp. Abundance was found to be
highest upstream of the dam site, at the confluence of the Jhelum River with Khad I
Nullah. Species richness was highest downstream of the dam site. The expert stated that
the abundance of more pollution tolerant genera is low because of the absence of industry
discharging into this stretch as well as the fast flow of the river during the summer
season.
Riparian Vegetation
The dominant plant species in the riparian zone include Dalbergia sissoo, Nerium
oleander and Mallotus philippensis. Vegetation cover was reported as ranging between
2.29% and 1.73%, average plant count was 18.5 and floral diversity was reported as 4.58
species per Sampling Location. One of the dominant plant species in the Riparian zone is
the invasive species Nerium oleander.
Periphyton Biomass
Based on the surveys carried out in July 2017 as part of the ESIA, average ash free dry
weight (AFDW) of periphyton was found to be higher upstream at the dam than
downstream. The habitat at locations upstream and downstream of the dam was unstable
and disturbed by human activities, therefore. During the summer the habitat is less
suitable for accumulation of periphyton biomass as compared to the winter. During
winter the flow of water is lower and more debris accumulates which provides anchorage
for the periphyton.
Terrestrial Biodiversity
Terrestrial Flora
This area is mountainous and the Terrestrial Study Area has an elevation range of 524 m
to 1,312 m. A total of 26 plant species were identified in the surveys carried out. None of
the species observed are on the IUCN Red List or are globally/nationally threatened
species, endemic species or protected species. The locals are dependent on the plants for
numerous uses, some of which include food sources, medicinal products, fodder and fuel.
Mammals
A number of mammal species have been reported within the wider area of the Project.
These include Common Leopard Panthera pardus, Leopard Cat Prionailurus
bergalensis, Common Palm Civet Paradoxurus hermaphrodites, Small Asian Mangoose
Herpestes javanicus, Stoat Mustela ermine, Yellow-throated Marten Martes flavigula,
Asiatic Jackal Canis aureus, Common Red Fox Vulpes vulpes, Indian Pangolin Manis
crassicaudata, Rhesus Monkey Macaca mulatta, Indian Crested Porcupine Hystrix indica
and Small Kashmir Flying Squirrel Hylopetes fimbriatus. No small mammals were
trapped during the surveys carried out as part of the ESIA. During the July 2017 Survey
no mammal species of conservation importance were observed in the Terrestrial Study
Area.
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Avifauna
A total of 44 species of birds were observed during surveys carried out as part of the
ESIA. Highest abundance and species diversity were found at Sampling Locations
located in Pine Forest habitat type. Abundant bird species include Black Bulbul, Grey
Hooded Warbler, Little Egret and Himalayan Bulbul.
None of the bird species observed are of conservation importance based on the IUCN
Red List of Species.
Herpetofauna
A total of eight species of reptiles and amphibians were observed during the surveys
carried out as part of the ESIA. The highest abundance and density was observed in
Agricultural Area habitat, while the highest species diversity was observed in Scrub
Forest and Agricultural Area habitat. None of the species observed are of conservation
importance based on the IUCN Red List of Species. However, one of the observed
species is found on the CITES Species Appendices, the Bengal Monitor Lizard Varanus
bengalensis (I).
Overview of Socioeconomic Environment
Rural settlement surveys were undertaken in selected settlements with river dependence
or within 1 km of Project facilities. Detailed interviews were conducted with key
informants to gather information on each settlement’s social and economic setup, with
focus on infrastructure and livelihoods. Key physical and socioeconomic features of the
Study Area are illustrated by the photographs in Exhibit V.
Exhibit V: Physical and Socioeconomic Features of the Study Area
Agricultural Fields Adjacent to the River Transport in the Study Area
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School Going Children in the Study Area Sediment mining at Barsala
Rain Water Storage at Nammal Dispensary in the Study Area
A total of 42 settlements were surveyed during the field work, ranging in size from seven
households to 21 households. The estimated number of total households in the surveyed
settlements in all zones is 8,762. The average household size of the surveyed settlements
is 6.9 and varies from 9.1.
People in the pastoral communities within the Socioeconomic Study Area have a trend of
seasonal migration, with one home close to the river and one at higher elevations. These
communities move their livestock herds to higher elevations in the mountains for grazing
during the summer. Migration both into and out of the Socioeconomic Study Area was
recorded in many settlements all over the Study Area. Income and employment
opportunities and education are the most common reasons that households migrate.
People from eight different casts are resident in the Socioeconomic Study Area, with
Abbasis and Sattis being the biggest groups. The predominant language spoken is Pahari,
with Urdu as the main secondary language.
There is a high level of school enrolment for both boys and girls although the dropout
rate before college is also high.
Most parts of the Socioeconomic Study Area have access to basic health facilities, such
as pharmacies, lady health visitors/workers and dispensaries. No disease was reported as
an epidemic, and as expected, the most common illness reported in the adult male and
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female populations was flu/fever. Other illnesses reported included dysentery, diabetes
and jaundice.
The settlements situated on the left bank of Jhelum River in the Socioeconomic Study
Area are well connected as there is a road running along the river for its entire length in
the area. Communities residing in some parts of the right bank are less well connected,
however suspension bridges and unsealed roads do connect them to major roads.
All surveyed settlements reported having access to a public potable water supply system
consisting of a central water storage system, where water collects from a mountain spring
and is supplied to the community via a pipeline up to a central point in the community.
Most surveyed settlements also reported having access to spring water at relatively short
distances.
None of the settlements surveyed in the Socioeconomic Study Area are connected to a
municipal sewage system. Human waste in some parts of the Study Area is disposed of in
septic tanks, however in most parts all wastewater eventually runs off into the Jhelum
River. Most settlements surveyed reported access to pit latrines of some type.
The three major fuel sources in the Socioeconomic Study Area include electricity,
fuelwood and liquefied petroleum gas (LPG). Natural gas is not supplied in the area.
Very few of the settlements are connected to the country’s landline telephone network,
however all of the area does receive a mobile phone signal.
The Socioeconomic Study Area and surroundings are generally peaceful, and there are no
major law and order problems reported. Most of the Study Area has police presence in
the form of police stations or check posts on major roads.
There is easy access to banks and markets in most of the Study Area. Small shops selling
groceries can be found in most settlements.
Around 30-37% of the total employable population is reported as being employed while
33-41% are unemployed. The remaining are students, retired and others such as labor and
small business operators.
The major sources of income are agriculture and livestock, while other significant
livelihoods include wage labor, government service, work for private businesses and
work as skilled artisans. A significant portion of households in the Socioeconomic Study
Area earn less than PKR 18,500, and can therefore be considered impoverished.
The average landholding size in all settlements is small, ranging from 1.71 to 4.67 kanals
per household in different parts of the Study Area. The main crops grown in the Study
Area are wheat and maize. Both these crops are cultivated both in the summer and in
winter in most zones. Most agricultural land is rain fed although small areas may be
irrigated using stream water. The agricultural economy is both subsistence and
commercial in nature. Almost all people either own farmland, or have access to it as
share croppers, and produce is partly consumed and partly sold as a source of income.
Livestock commonly owned include bullocks/buffalos, cows, goats, donkeys and a small
number of horses. Livestock owners often engage herders to rear goats, whereas poultry,
cows and buffalo are reared at home.
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River dependent socioeconomic activities in the Socioeconomic Study Area were found
to be quite limited.
Sediment mining is carried out to some extent throughout the Study Area. The mineable
sediment resource is being extracted to meet small-scale construction demand, involving
construction and maintenance of local residential and commercial buildings as well as for
roads. The mining techniques are crude, involving use of labor for dredging. The mining
operations are of different sizes. Small- and medium-scale operations are typically family
businesses, and land on the river bank, in most of the cases, is also owned by the same
family, although in some cases the land may be rented. Income from sediment mining, as
a percentage of total income in the area is low (4.44% in Zone 4 being the highest).
There is limited fishing activity in the Study Area. Some of the fish caught is consumed
by the families engaged in fishing while the rest is sold locally on a small scale. The
fishing season lasts around six months through the year, depending on the fish species
caught.
Fuel wood is the main source of energy for domestic cooking and heating. Respondents
reported that fuel wood is either collected from agricultural land, or dead, fallen trees in
the forests are used. There is limited dependence on driftwood collected from the
riverbanks as source of fuel wood.
There is very little tourism in the Socioeconomic Study Area and recreational dependence
on the river was reportedly low in all the zones. During the survey the respondents did
not cite riverside fishing, boating or picnics as a major recreational activity or source of
income.
Environmental Flow Assessment and Impacts on Aquatic Ecology
The assessment of impact on aquatic ecology presented in the report provides predictions
for changes in fish populations due to the Project associated with the barrier created by
the dam, and change in flow conditions in the Jhelum River. The assessment also takes
into account other anthropogenic factors such as harvesting of fish and sediment from the
river system that contribute to degradation of aquatic ecosystems and hence fish
populations in parallel. Given the dynamic nature of changes caused by both the Project
and non-Project related pressures, holistic assessment methodologies already tested in the
Jhelum Basin were adopted that provide a time series forecast of changes, as opposed to a
snap-shot prediction of post Project conditions.
The predictions presented in the report are for a selected set of fish species that represent
the range of fish species occurring in the river and tributary system that will be impacted
in terms of behavior and response to changes imposed by the Project. The changes in fish
populations incorporate and reflect the impacts of changes in other ecosystem indicators,
and were therefore considered relevant for discussion in this section.
Baseline Scenario
The baseline for the Project considers the Kohala HPP, Neelum-Jhelum HPP, and Karot
HPP. It also models the decrease in fish populations due to degradation of the aquatic
environment due to anthropogenic factors and increase due to protection from the
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Biodiversity Management/Action Plans of the approved projects and any changes to the
hydrology and connectivity due to these projects.
Environmental Flow Release Scenario
Environmental flow (EFlow), or flow that has to be released from the dam to meet the
requirements of the aquatic ecosystem, is generally of concern when the power house is
located at a distance from the dam, which can result in an extended stretch of river drying
up. In the case of Mahl HPP the power house is located at the toe of the dam and the
reservoir of the planned Azad Pattan HPP will start immediately downstream of the Mahl
Dam. As a result there will be no low flow section and therefore no section over which to
maintain flowing conditions. Release of environmental flow for this Project is not
recommended.
Protection Scenario
The EFlow assessment considers protection of the aquatic habitat as described in the
BMP for the Project.
Results and Conclusions
Exhibit VI presents a summary of weighted change of fish populations in the AoI.
Overall:
The Suckerhead is resilient to flow changes and also not as affected by human
pressures. However, inundation of the Jhelum River will result in a loss of a
significant population of this fish which will not be fully offset by protection in
the tributaries. Over all its population is predicted to decrease by 10% in the AoI.
In the baseline, the Alwan Snow Trout would have been lost in the Jhelum River
prior to the operation of the Project due to impacts of peaking releases by
hydropower projects located upstream, and poor protection under the Business as
Usual protection. The Project itself even with Protection Level 2 will therefore
not benefit this fish. This fish, however, will benefit from the protection to be put
in place by the Project in the tributaries, and its overall population in the AoI is
predicted to increase by 19%.
The population of Pakistani Labeo will not change significantly in comparison to
the baseline levels. The impact of the Project on populations of this species in the
main river will be balanced by protection of the fish and their habitats under the
Project in the tributaries through implementation of the BMP.
The population of the Nalbant Loach in the AoI is expected to increase by 31%
since the inundation of the river habitat will be offset by the benefit from
protection in the tributaries. Protection in the Nullahs will benefit this small fish,
mainly due to control on sediment mining and non-selective fishing pressures.
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Exhibit VI: Weighted Average Change in Population over Baseline
Fish Species Weighted Change in Population over Baseline
Suckerhead -10%
Alwan Snow Trout 19%
Pakistani Labeo 3%
Nalbant Loach 31%
Study of Alternatives
No Project Option
AJK and Pakistan are going through an acute power shortage. The gap between supply
and demand has crossed 5,000 MW. The proposed Project will supply the much needed
power to reduce the current gap. Environmentally, this Project will contribute towards
improving the air quality as in the long run it will displace fossil fuels used in power
generation. The Project also aims to protect fish fauna in the Jhelum River and its
tributaries to achieve improvement in fish populations for fish species of conservation
importance. A Biodiversity Management Plan has been prepared and will be
implemented as a part of the Project to achieve this objective. Therefore the ‘no project’
option will have a negative impact on the economy as well as on the environment in the
Jhelum River.
Alternative Technologies and Scale for Power Generation
The alternatives to the proposed run-of-the-river (RoR) hydropower project include
power generation from LNG/imported natural gas based combined cycle gas turbines
(CCGTs), coal fired steam plants, and fuel oil based diesel engines. In addition, other
technologies such as nuclear, and wind and solar renewable energy power plants could
also be considered as alternatives. An analysis of the life cycle average cost of generation
shows that cost of power generation for the proposed large size run of river (RoR)
hydropower project is presently comparable to that for LNG and coal based options. Cost
of power generation for the large hydropower projects is also presently lower than that
for wind energy and solar PV projects where power generation is intermittent and
weather dependent.
Project Impacts
During the scoping stage of the ESIA process, several potential environmental and social
impacts of the project were identified. The baseline surveys were conducted keeping in
consideration the potential impacts. The potential environmental and social impacts were
evaluated based on consideration. A summary of Project impacts is presented in
Exhibit VII.
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Exhibit VII: Summary of Significant Impacts
ID Aspect Impact Phase Stage Magnitude Timeframe Spatial Scale Consequence Probability Significance +/-
1 Aquatic Ecology
Loss of riverine ecosystem due to inundation by Project Reservoir
C, O Init Major Long Term Intermediate High Definite High -
Res Major Long Term Intermediate High Definite High -
2 Aquatic Ecology
Change in the Ecological Integrity of the Tributaries through implementation of the BMP (see Volume 4 of the ESIA)
C, O Init Moderate Long Term Extensive High Definite High +
Res Moderate Long Term Extensive High Definite High +
5 Terrestrial Ecology
Project operation leading to animal disturbance, displacement and decline.
O Init Minor Long Term Small Medium Possible Medium -
Res Minor Long Term Small Low Possible Low -
6 Ambient Air Quality
Increase in ambient concentration of particulate matter from construction activities and vehicular movement may have health consequences for the community.
C Init Moderate Short Term Intermediate Medium Possible Medium -
Res Minor Short Term Intermediate Low Possible Low -
7 Vibration from blasting
Vibration from blasting during the construction phase may disturb local communities.
C Init Moderate Short Term Intermediate Medium Possible Medium -
Res Minor Medium Term
Small Low Possible Low -
8 Hazards of Fly Rock from Blasting
Blasting may pose a safety hazard due to flying debris.
C Init Major Short Term Intermediate Medium Possible Medium -
Res Minor Short Term Small Low Possible Low -
9 Construction Nosie
Increase in ambient noise levels due to operation of construction equipment, movement of construction traffic and blasting may create nuisance for nearby communities and visiting tourists.
C Init Moderate Short Term Intermediate Medium Possible Medium -
Res Minor Short Term Small Low Possible Low -
10 Water Availability and Quality
Alterations of natural passage of springs due to tunnel construction may disrupt the water availability at mountain springs for local community.
C Init Major Long Term Intermediate High Possible High -
Res Minor Medium Term
Intermediate Low Possible Low -
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ID Aspect Impact Phase Stage Magnitude Timeframe Spatial Scale Consequence Probability Significance +/-
11 Water Availability and Quality
Use of local water resources for construction activities may reduce the water availability for local communities.
C Init Moderate Short Term Intermediate Medium Possible Medium -
Res Minor Short Term Small Low Unlikely Low -
13 Soil, Topography and Land Stability
Contamination of soil as a result of accidental release of solvents, oils and lubricants can degrade soil fertility and agricultural productivity.
C Init Moderate Medium Small Medium Possible Medium -
Res Minor Medium Small Low Unlikely Low -
14 Soil, Topography and Land Stability
Land clearing, excavation, tunnel boring and other construction activities may loosen the top soil in the Project area resulting in loss of soil and possible acceleration of soil erosion and land sliding, especially in the wet season.
C Init Moderate Medium Term
Intermediate Medium Definite Medium -
Res Minor Short Term Small Low Possible Low -
15 Soil, Topography and Land Stability
Increased erosion and sediment load entering river from bunds and sediment ponds during the construction phase and as a consequence of failure of spoil dumping sites.
C, O Init Moderate Long Term Intermediate High Possible High -
Res Moderate Medium Term
Intermediate Medium Unlikely Low -
21 Traffic and Road
Increased risk to community safety due to increased traffic during the construction phase near communities.
C Init Major Short Term Small Medium Possible Medium -
Res Minor Short Term Small Low Possible Low -
23 Livelihood and Well-being
Direct, indirect and induced employment at the local level, resulting in increased prosperity and wellbeing due to higher and more stable incomes of people.
C, O Init Minor Long term Extensive Medium Possible Medium +
Res Moderate Long term Extensive High Definite High +
24 Livelihood and Well-being
Increase in the stock of skilled human capital due to transfer of knowledge and skill under the Project resulting in enhanced productivity of local labor.
C, O Init Minor Long term Intermediate Medium Possible Medium +
Res Moderate Long term Extensive High Possible High +
26 Livelihood and Well-being
Loss of income from sediment mining due to inundation and changes in the pattern of sediment deposition following construction of the dam.
O Init Major Long term Extensive High Definite High -
Res Minor Medium Small Low Possible Low -
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ID Aspect Impact Phase Stage Magnitude Timeframe Spatial Scale Consequence Probability Significance +/-
27 Livelihood and Well-being
Loss of assets and livelihood as a result of land acquired for the Project.
D, C Init Major Long term Extensive High Definite High -
Res Minor Medium Small Low Possible Low -
28 Socio-Cultural Impacts
Increase in population due to in-migration of job seekers (in-migrants) leading to pressure on existing social infrastructure and services in the Study Area.
C Init Moderate Medium Intermediate Medium Possible Medium -
Res Minor Medium Intermediate Low Possible Low -
29 Socio-Cultural Impacts
Disputes over the distribution of Project employment within and between Study Area inhabitants and the in-migrants resulting in social unrest.
C Init Moderate Medium Intermediate Medium Possible Medium -
Res Minor Short term Intermediate Low Possible Low -
31 Socio-Cultural Impacts
Submergence of graveyards. C Init Moderate Medium Intermediate Medium Possible Medium -
Res Minor Short term Intermediate Low Possible Low -
34 Climate Change
Occurrence of an increase in extreme events (e.g. increase of PMP or extreme events is likely, with medium confidence, under future climate scenarios; however extremes events themselves are very unlikely), that the dam is not designed to withhold, leading to catastrophic dam failure and potential damage to property and loss of life downstream.
O Init Major Short term Extensive High Definite High -
Res Moderate Short term Extensive Medium Possible Medium -
C: Construction (and pre-Construction); O: Operation; Init: Initial; Res: Residual; Duration: Short (less than four years), Long (beyond the life of the Project)
Frequency: High (more than 10 times a year), Low (less than once a year)
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Cumulative Impact Assessment
The methodology used for the CIA of Mahl HPP has been adapted from the guidelines of
the International Finance Corporation. The study area selected for the CIA (CIA Study
Area) includes the Jhelum River from Wular Lake in Indian Administered Kashmir
(IAK) downstream to the top of Mangla Reservoir. It also includes a segment of Neelum
River downstream of Neelum Jhelum HPP, and a segment of Kunhar River downstream
of Patrind Dam. The temporal scope of the CIA spans a period of 31 years up till the year
2050.
Priority VECs were identified through an Ecosystem Services Review and from
ecological studies. The ecosystem services and biodiversity values identified as important
were combined to develop a list of prioritized VECs for the purpose of this study. The
prioritized VECs for this CIA are:
River ecology with emphasis on fish fauna
Sediment mining
Impact on Fish Fauna
Three environmental management scenarios were considered when assessing the impact
on fish fauna in the CIA Study Area.
A ‘Business as Usual’ (BAU) scenario, which predicts the health of the river ecosystem
in the absence of any additional dams (both planned and under construction) but with
present day non-flow pressures maintained at Business as Usual levels.
A ‘Baseline Management’ (BM) scenario consistent with peaking operation of Azad
Pattan HPP, Neelum Jhelum HPP, Patrind HPP, Mahl HPP and Chakoti Hattian HPP,
Kohala HPP operating with an EFlow of 30 m3/s, Karot HPP operating with non-peaking
baseload operation, application of Protection Level 3 in the area of management for the
BAP of Kohala HPP, application of Protection Level 2 in the areas of management for
the BAP/BMPs of Mahl, Azad Pattan and Karot HPPs. For the remaining projects, it was
assumed that current policies, regulatory and management practices being applied in the
CIA Study Area will continue until 2050.
An ‘Enhanced Management’ (EM) scenario includes the impact of the seven dams with
additional management measures including protection and management in IAK, not
constructing Chakoti Hattian HPP, maintaining offset for Kashmir Catfish upstream of
Kohala Reservoir, operating Patrind HPP at baseload, Protection Level 2 in the Neelum
River downstream of the Neelum Jhelum HPP dam to the Jhelum River confluence,
Protection Level 2 in the Kunhar River downstream of the Patrind Dam to the Jhelum
River confluence.
The likely cumulative impacts on three indicator fish species are described in the
following sections.
Mahaseer
In the BAU scenario, the Mahaseer populations reduce by 50-60% of Present Day
populations due to human pressures, mainly fishing.
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The Baseline Management scenario representing the impact of all dams results in a
reduction of up to 100% of Present Day populations upstream of the Karot Reservoir due
to the compounding effects of the dams (peaking and submergence) and human impacts.
There is a less severe 40% decline downstream of Karot dam, the impacts mitigated by
baseload operations coupled with protection. Additionally, protection applied in the areas
of management of Azad Pattan and Karot HPPs results in a population increase of
30-40% in Mahl River and other major tributaries flowing into the main river.
Alwan Snow Trout
The Alwan Snow Trout faces heavy selective fishing pressures, resulting in 70-100%
declines predicted throughout the river under the BAU scenario.
Under the BM scenario, the expected impact of all dams results in 90-100% declines in
most of the river. Downstream of Kohala there is a limited 50% decline, due to benefits
of the Eflow released from Kohala Dam and increased protection under the Kohala BAP.
Protection in this area also results in an increase in populations by 10% in tributaries
draining into the Kohala Reservoir. Further downstream protection applied to the Mahl
and Azad Pattan areas of management results in a population increase of 20% in Mahl
River and a small 10% decline in other tributaries flowing into the Mahl and Azad Pattan
Reservoirs, which is a significant improvement over the BAU scenario.
Under Enhanced Management the Chakothi Hattian HPP is not constructed and
Protection Level 3 is applied from the Kohala Reservoir up to the Uri I tailrace, resulting
in a 10% increase in the stretch from Kohala Reservoir up until the Uri II tailrace.
Operating Patrind HPP at baseload results in a smaller 20% decline in the population
between the Patrind tailrace and the start of Mahl Reservoir. Protection applied to the
Neelum River downstream of the Neelum Jhelum Dam until the Jhelum confluence
results in a 20% population increase in this stretch of river. Protection applied to the
Kunhar River downstream of Patrind Dam to the Jhelum confluence also results in a 20%
population increase in this stretch of Kunhar River.
Nalbant’s Loach
Under BAU Nalbant’s Loach populations are expected to eventually decrease by 50% in
most stretches of river. Upstream of the line of control the population will decline by
100% in some stretches due to submergence by existing dams.
With the addition of dams under BM, the Nalbant’s Loach population declines by 50-
100% in additional stretches affected by submergence and altered flow. In some sections
downstream of Kohala dam the Eflow plus improved protection results in populations
remaining at their current level. Between the Karot tailrace and Mangla Reservoir, a
combination of baseload operation of Karot HPP plus protection under the Karot BMP
results in a 10% increase in the Nalbant’s Loach population in this stretch of Jhelum
River. Protection Level 3 under the Kohala BAP results in a 30% increase in populations
in tributaries draining into Kohala Reservoir. Protection Level 2 in the Mahl, Azad Pattan
and Karot areas of management result in limited declines of 10% in most tributaries
draining into the Mahl, Azad Pattan and Karot reservoirs, and the conservation of current
population levels in the Mahl River. This is an improvement over the declines of 30-50%
predicted under BAU.
ESIA of Mahl Hydropower Project
Hagler Bailly Pakistan Executive Summary R7ES5MLP: 12/22/17 xxxi
Under EM there are gains of 30% in stretches of river upstream of Kohala reservoir.
Further downstream, between the Neelum confluence and Mahl reservoir Present Day
populations are maintained. Protection in the Neelum and Kunhar rivers downstream of
Neelum Jhelum and Patrind Dams also preserves the Nalbant’s Loach population at
current levels despite the diversions in flow in these rivers. Populations in tributaries of
the Neelum River decline by a limited 10%, a significant improvement over the 50%
decline predicted under BAU.
Overall Impact on Ecosystem Integrity
The cumulative impact of the proposed HPPs on the overall ecosystem condition and
integrity of the Jhelum River was studied, and categories used to describe the Jhelum
River’s Present Ecological State are based on modification from the natural (see
Exhibit VIII). The Jhelum River is by no means an undisturbed system and the Present
Day river condition downstream of the LoC up till Muzaffarabad was rated as Category
B/C (expected to deteriorate to a D under BAU) and as C/D downstream of Muzaffarabad
till the Mangla Reservoir (expected to deteriorate to D and D/E under BAU).
Exhibit VIII: Definitions of the Present Ecological State (PES) Categories
A Unmodified, natural
As close as possible to natural conditions.
B Largely natural Modified from the original natural condition but not sufficiently to have
produced measurable change in the nature and functioning of the ecosystem/community.
C Moderately modified
Changed from the original condition sufficiently to have measurably altered the nature and functioning of the ecosystem/community, although the difference may not be obvious to a casual observer.
D Largely modified
Sufficiently altered from the original natural condition for obvious impacts on the nature and functioning of the ecosystem/community to have occurred.
E&F Completely modified
Important aspects of the original nature and functioning of the ecosystem community are no longer present. The area is heavily negatively impacted by human interventions.
A weighted average score for the CIA Study Area was calculated on the basis of the score
for ecological integrity in each segment of the river and length of the segment. The
stretch of the river upstream of the LoC was excluded from this analysis as the
developers in AJK have no influence over management of river ecology in that stretch.
Exhibit IX illustrates the calculated changes in overall ecosystem integrity for the CIA
Study Area with sequential implementation of the HPPs.
ESIA of Mahl Hydropower Project
Hagler Bailly Pakistan Executive Summary R7ES5MLP: 12/22/17 xxxii
Exhibit IX: Predicted Ecosystem Integrity in the CIA Study Area
with Sequential Implementation of Hydropower Projects
1. Starting with a 2013 score of 60% corresponding to ecosystem integrity of C, the
ecosystem integrity deteriorates to D or a score of about 40% under the BAU
scenario without the construction of new dams. This deterioration is due to poor
protection and increasing pressures on the ecosystem, mainly fishing, sediment
mining, and deterioration in water quality over time.
2. With the construction of the Neelum Jhelum and Patrind HPPs, which have no
protection built into their management plans, the score drops further to 37% (D/E)
due to the added impact of the projects.
3. The Karot and Kohala HPPs have protection built into their BMP/BAPs, which
compensates for their impacts and improves the ecosystem integrity score to 39%,
taking it closer to D again.
4. The Mahl and Azad Pattan HPPs, also with protection built into their BMPs
further increase the ecosystem integrity scores to 41% or a D.
5. The Chakothi-Hattian project slightly reverses the gains achieved by the previous
projects, and takes the score back to about the same level as the Business as Usual
case.
6. Finally, with implementation of the Enhanced Management scenario, the
ecosystem integrity can be improved to a score of about 45%, corresponding to
ecological integrity of low C, which is better than the 40% or D predicted under
the BAU scenario.
ESIA of Mahl Hydropower Project
Hagler Bailly Pakistan Executive Summary R7ES5MLP: 12/22/17 xxxiii
Livelihoods Related to Sediment Mining
Availability of sediment for mining is very likely to decrease in the near term as
additional HPPs are built, and patterns of deposition of the sediment will also change
following construction of dams. The total quantity of sediment being mined from the
Jhelum River is estimated at 0.8 million tonnes/year. Given a total bed load sediment
flow of 4.97 million tonnes/year which is close to the downstream end of the CIA Study
Area, present demand for sediment is estimated at 16% of the sediment available in the
upstream reaches of the river and tributaries. The availability of sediment for meeting the
demand of the communities is therefore not likely to be an issue for the foreseeable
future. Preparation and implementation of sediment mining guidelines is included in the
BAP/BMPs of HPPs in the Jhelum Basin.
Management Strategy and Measures
This CIA recommends basin wide measures that are important for the protection of
biodiversity in the long term. These include:
Actions to be taken collectively by the hydropower industry and the government
to ensure the protection of aquatic biodiversity in the long term, and
Actions that the government can take to further enhance the status of biodiversity
in the segment of the Jhelum River that is directly impacted by the Project.
The following is a summary of these actions:
Establishment of an Institute for Research on River Ecology: The CIA recommends
research and development for selection and installation of fish passages suited to local
species, river conditions, and dam designs, captive breeding and restocking of fish of
conservation importance that are impacted by hydropower projects, assessment of
impacts on river biodiversity at sub-basin level, use of environmental flow models such
as DRIFT to assess cumulative impacts of hydropower projects, and genetic studies to
determine and mitigate risk of in-breeding caused by barriers created by dams. The
proposed institute will help the project owners in maintaining ecological databases and
research and analysis capabilities that will benefit them individually by lowering their
environmental management costs.
Establishment of Watershed Management Program: The Watershed Management
Program (WMP) will primarily focus on improvement of water quality in the basin that is
critical for protection of biodiversity in the long term. The institutional and financial
model for setting up watershed management institutions will be similar to that proposed
for the Institute for Research on River Ecology. The support provided by project owners
in this case, however, will be limited, as additional support and resources will be
mobilized from the participating government departments which will include forests,
wildlife, agriculture, and irrigation. Action areas recommended in the CIA include land
use management and reforestation to reduce erosion and risk of landslides and to meet
community needs for fuel wood and timber, management of water use, and control of
water quality.
Actions and Measures that the Governments can take to Protect and Enhance the
Biodiversity in the Jhelum Basin: Specific actions recommended in the CIA that will
directly benefit the biodiversity in the area of impact and are in the purview of the
ESIA of Mahl Hydropower Project
Hagler Bailly Pakistan Executive Summary R7ES5MLP: 12/22/17 xxxiv
government include requirement for future projects in the basin to achieve Net Gain in
population of key fish species. In addition to this, where technically and economically
feasible, HPP projects should be operated at baseload to avoid the impact of peaking
operations on the river.
The Biodiversity Management Plan
The Jhelum River and its tributaries in the Area of Management provide habitat for a
number of fish species including some fish of conservation importance. These include
Alwan Snow Trout, Suckerhead and Pakistani Labeo which are long distance migratory
fish and the, Nalbant's Loach which is a fish endemic to the Jhelum basin. Even though
the Mahaseer and Indus Garua are also fish species of concern reported from the Area of
Management, their population in the Area of Management is very small. Therefore, they
have not been selected as indicators for the BMP. Project construction and operation are
likely to have a detrimental impact on the ecological resources of the Jhelum River.
However, this loss can be compensated and offset by implementing a protection program
to reduce the non-flow related pressures on the ecological resources. This BMP has
therefore been developed to protect the valuable ecological resources of the Jhelum River
and its tributaries which will be impacted by the Project.
Objectives of the BMP
This BMP includes a set of actions for the conservation and enhancement of biodiversity
in an area where biodiversity will be directly impacted by the Project. Specific objectives
of the BMP are to ensure that the Project:
Implements the mitigation and monitoring of biodiversity as proposed in the
ESIA, and as refined and/or modified by the BMP itself
Complies with national legislation and policy requirements (Section 2,
Regulatory and Institutional Framework)
Complies with lender and other international requirements as specified by IFC’s
Performance Standard 6 and ADB’s Safeguard Policy Statement 2009
Addresses the concerns and expectations of the stakeholders (Section 3, Summary
of Stakeholder Consultations)
Implements best practice and sustainable solutions
This BMP also includes basin wide measures for protection of biodiversity recommended
in the Cumulative Impact Assessment (CIA) of the Project that are important for the
protection of biodiversity in the long term. These include the establishment of an Institute
for Research on River Ecology, establishment of a Watershed Management Program, and
actions and measures that the Governments can take to protect and enhance the
biodiversity in the Jhelum Basin.
Protection of terrestrial ecological resources has not been included in the BMP. This is
because as discussed in the ESIA, Project impacts on terrestrial species are not likely to
be significant. Therefore, actions in the BMP related to terrestrial habitats have been
limited to provisions for development of management plans for the protected areas falling
in the Area of Management.
ESIA of Mahl Hydropower Project
Hagler Bailly Pakistan Executive Summary R7ES5MLP: 12/22/17 xxxv
Spatial and Temporal Scope of the Biodiversity Management Plan
The selection of spatial scope of the BMP has been defined to incorporate an area where
biodiversity will be directly impacted by the Project. It includes the Mahl HPP (Project)
as well as the Project reservoir downstream of the tailrace of the Kohala Hydropower
Project. Major tributaries Kaner Nullah in KP, Khad 1 Nullah in Punjab as well as Erin
Nullah in AJK are also included in the Area of Management. This area, called the Area of
Management (AoM) is shown in Exhibit X. The BMP will remain in effect through the
life of the Project inclusive of construction and operation of the Project, until the dam is
decommissioned and removed.
Protection of terrestrial ecological resources in the Area of Management has not been
included in the BMP. As discussed in the ESIA, Project construction and operation
impacts on terrestrial mammal, bird, reptile, and amphibian species are not likely to be
significant. Actions in the BMP related to terrestrial habitats have therefore been limited
to provisions for development of management plans for the protected areas falling in the
Area of Management.
ESIA of Mahl Hydropower Project
Hagler Bailly Pakistan Executive Summary R7ES5MLP: 12/22/17 xxxvi
Exhibit X: Spatial and Temporal Scope of BMP
ESIA of Mahl Hydropower Project
Hagler Bailly Pakistan Executive Summary R7ES5MLP: 12/22/17 xxxvii
Proposed Conservation Measures
The strategy and approach used for protecting the biodiversity includes the following:
Setting up an effective and efficient watch and ward system that will help to
reduce the existing anthropogenic pressures in the Area of Management
(including the main Jhelum River and tributaries) which is central to keeping the
integrity of the Area of Management of the BMP intact. This will:
curtail illegal fishing including non-selective fishing, fishing in breeding
season of fish, fishing in river tributaries.
regulate sediment mining to maintain it at sustainable levels and prevent
sediment mining from ecologically sensitive locations.
Promote environmental awareness among the local communities and engage them
in protecting the ecological resources
Institutional strengthening of custodian government departments
Control of Illegal Fishing
The following measures will be implemented by the AJK Fisheries and Wildlife
Department (AJKFWD), Punjab Fisheries Department (PFD) as well as KP Wildlife
and/or KP Fisheries Department with support from MPCL for conserving the fish
populations of the Jhelum River.
Non-selective fishing using fine mesh gill nets, poisons and dynamites will be
completely controlled in the entire stretch of the Jhelum River.
Fishing in the tributaries that are breeding grounds of fish will not be permitted.
Fishing during the breeding season of the fish (May – August) will not be
permitted.
Commercial fishing will not be allowed either in the river and its tributaries or in
the reservoir.
The above rules and regulations will be strictly implemented with an efficient and
effective watch and ward system.
To compensate for loss in fishing incomes, subsistence fishing using rods and cast
nets with limited weights will be allowed through a permitting system.
Angling will be allowed to attract visitors and develop the educational and
recreational value of the reservoir when the fish populations have recovered.
Fish Passage
At Mahl Hydropower Project, even if a fish channel is constructed, it will be challenging
for fish to negotiate due to the dam height of 88.4 m. Further investigations and research
to address barrier related impacts on fish will be carried out by the Institute for Research
on River Ecology (Section 6.6). If a suitable mitigation measure or structure to assist fish
passage across the dam is identified, this will be adopted, subject to approval of
associated costs in the tariff by NEPRA.
ESIA of Mahl Hydropower Project
Hagler Bailly Pakistan Executive Summary R7ES5MLP: 12/22/17 xxxviii
Regulation of Sand and Gravel Mining
Sediment mining will only be allowed in designated areas and banned from ecologically
sensitive areas such as habitat of fish of conservation importance, and fish breeding
locations in tributaries. Guidelines for Management of Sediment Mining to ensure that
sustainable practices are established will be prepared and implemented as a part of the
BMP.
Awareness among Local Communities
An Awareness and Education Program will be initiated to inform and educate the local
communities about the importance of the biological resources of the area and actions
required for their protection.
Human Resources for Management of Aquatic Biodiversity
As part of the BMP, MPCL will provide funds to support an improved watch and ward
system within the Area of Management. This will include construction of field offices,
hiring of additional staff members (watchers), and necessary equipment and facilities.
Mining inspectors will be hired to prevent sand and gravel extraction from ecologically
sensitive locations. Social mobilizers will be hired for education and awareness-raising of
the local communities.
Establishment of an Institute for Research on River Ecology (IRRE)
The IRRE is proposed as a basin wide institution in which all the developers of HPPs in
the basin contribute to establishment and operation of the institute, and jointly benefit
from the research outputs. The initiative is the outcome of the International Finance
Corporation of the World Bank (IFC) initiative to set up a Hydropower Working Group
for the basin, through which the project owners can cooperate and collaborate to
collectively manage the basin in a sustainable manner. The proposed institute will help
the project owners in maintaining ecological databases and research and analysis
capabilities that will benefit them individually by lowering their environmental
management costs. MPCL will contribute to the establishment and operation of an
Institute for Research on River Ecology (IRRE), subject to approval of associated costs in
the tariff by the National Electric Power Regulatory Authority (NEPRA).
Establishment of Watershed Management Program (WMP)
The Watershed Management Program (WMP) will primarily focus on improvement of
water quality in the Jhelum basin that is critical for protection of biodiversity in the long
term. The institutional and financial model for setting up watershed management
institutions will be similar to that proposed for the Institute for Research on River
Ecology. The support provided by MPCL and project owners in this case, however, will
be limited, as additional support and resources will be mobilized from the participating
government departments which will include forests, wildlife, agriculture, and irrigation.
Action areas may include, but not be limited to, land use management and reforestation to
reduce erosion and risk of landslides and to meet community needs for fuel wood and
timber, management of water use, and control of water quality. As in the case of the
IRRE, APPL will contribute to the establishment and operation of a WMP subject to
approval of associated costs in the tariff by the NEPRA.
ESIA of Mahl Hydropower Project
Hagler Bailly Pakistan Executive Summary R7ES5MLP: 12/22/17 xxxix
Institutional Arrangements for Implementation of BMP
Exhibit XI, Exhibit XII and Exhibit XIII illustrates the institutional and contractual
arrangements for implementation of the BMP. Since the BMP will be implemented in
three provinces: AJK, Punjab and KP, MPCL will enter into an Implementation
Agreement with the Government of AJK, Government of Punjab and Government of KP
using a similar approach adopted for the Gulpur Hydropower Project. In AJK, the
responsible government department is the AJK Fisheries and Wildlife Department
(AJKFWD), in Punjab it is the Punjab Fisheries Department. In Khyber Pakhtunkhwa
(KP), the responsibility for watch and ward of the terrestrial and aquatic ecological
resources lies with the Wildlife Department, while the Fisheries Department regulates
recreational fishing and is also responsible for management of water quality of the river.
It is therefore not clear which department will take the lead in supporting implementation
of the BMP in KP. For the purpose of this Draft BMP, both organizations have been
proposed and a decision can be taken by the KP Government about which department
will finally be designated.
The implementation arrangements suggested in the BMP are based on the experience
from implementation of the BAP of the Gulpur HPP in AJK. In Punjab implementation
arrangements will be finalized after discussions with the Government of Punjab. These
arrangements are currently under discussion for the BMP of the Karot HPP.
A BMP Management Committee in AJK, Punjab and KP will be established, which will
be responsible for reviewing the reports submitted by the Implementation Organization
and the M&E Consultant, reporting to on an annual basis and coordination with a high
level oversight body such as AJK Wildlife Management Board, and providing directions
to the staff of the Department, Implementation Organization, and the M&E Consultant
for improving the effectiveness of the implementation of the BMP.
ESIA of Mahl Hydropower Project
Hagler Bailly Pakistan Executive Summary R7ES5MLP: 12/22/17 xl
Exhibit XI: Institutional Arrangements for Implementation of BMP in AJK
Exhibit XII: Institutional Arrangements for Implementation of BMP in Punjab
ESIA of Mahl Hydropower Project
Hagler Bailly Pakistan Executive Summary R7ES5MLP: 12/22/17 xli
Exhibit XIII: Institutional Arrangements for Implementation of BMP in KP
Monitoring and Evaluation Framework and Adaptive Management
A Pressure-State-Response (PSR) framework will be used for monitoring of effectiveness
of implementation on the BMP. The type of indicators proposed for monitoring the
pressures are:
1. The total amount of fish by species being harvested in a year, for subsistence and
recreational purposes, through legal as well as illegal means.
2. Total amount of sand and gravel extracted from the river and tributaries,
separately reported or estimated for extraction through legal means (with permits
at designated mining sites) and through illegal means (without permits).
Indicators of state will include hydrology, water quality, catchment, and fish. The method
of data collection, frequency and timing of collection as well as data analysis is included
in a detailed Monitoring and Evaluation Plan prepared for the BMP. The methodologies
will be adjusted and adapted over time where required to facilitate assessment. Indicators
of response will include institutional capacity, awareness among stakeholders and their
concerns, and performance of any institutions established following the recommendations
of Cumulative Impact Assessment (CIA) for the Project. A combination of qualitative
and quantitative techniques will be employed. Reports will be prepared and discussed
with the key stakeholders once every year.
The indicators and methodologies used for monitoring may need to be adjusted and
adapted in line with the principles of adaptive management to respond to changing
pressures, and unforeseen or unexpected outcomes of the mitigation measures applied.
ESIA of Mahl Hydropower Project
Hagler Bailly Pakistan Executive Summary R7ES5MLP: 12/22/17 xlii
Budget for Implementation
The BMP presents budgets for capital and onetime costs and for annual operating or
recurring costs respectively for implementation of the BMP (Exhibit XIV).
Implementation will be initiated following the financial close of the Project.
Exhibit XIV: Summary of the Budgetary Requirements for Implementation of the BMP
Total Cost, (USD)
Share of MPCL (USD)
Capital/One Time Cost
Protection, Incl. Park Management and Sediment Mining Plans
$167,162
Monitoring and Evaluation $43,200
Institute for Research on River Ecology @ 20% of total cost $252,157 $50,431
Watershed Management @ 15% of total cost $509,251 $76,388
Total, Capital/One Time Cost $337,181
Annual Recurring Cost
Protection $196,414
Monitoring and Evaluation $96,740
Institute for Research on River Ecology @ 20% of total cost $263,948 $52,790
Watershed Management @ 15% of total cost $678,665 $101,800
Total, Annual Recurring Cost $447,744
Budget Estimate for Capitalization Purposes
Capital/One Time Cost $337,181
Recurring Cost for 6 Years During Construction $2,686,464
Total Cost for Capitalization $3,023,645