interaction matrix all types of interaction matrix ,complete classification eia...

8/13/2019 Interaction Matrix all types of interaction matrix ,complete classification EIA METHODOLOGIES Additional Information on Checklist MAIN FEATURES LIVE SCEN

1/27

Page 1

ENVIRONMENT L IMP CTSSESSMENT

Module-5

Concept and Methods of

Impacts Identification

Checklists

Matrices

Networks

Directed Graphs

Overlays

EIA METHODOLOGIES

Checklists

Matrices

Networks

Directed Graphs


2/27

Page 2

METHODS OF PREDICTION

Professional Judgement

Quantitative Math Methods

Experiments, Physical Methods

CHECKLISTS

Simple Checklists

Simple listing of factors

Checklists including additional information:

Type of impacts

Ranking of impacts

Including mitigation measures

Descript ive Checklists Addresses:

Actions

Impacts

Mitigation

Ranking

Different phases of project


3/27

Page 3

TOPICAL ISSUE YES MAY BE NO COMMENTSLand form. Will the project result in

Unstable slopes of embankments?

Extensive disruption to or displacement of the soil? Impact to land classified as prime of unique farmland? Changes in ground contours, shorelines, stream channels, or river banks?

Destruction, covering or modification of unique physical features? Increased wind or water erosion of soils? Foreclosure on future uses of site on a long term basis?

Air/cl imat olo gy, Will t he proj ect resu lt in

All p oll utant emi ssio ns wh ich w ill exc eed or sh ow st andard o r caus e

deterioration of ambient air quality? Objectionable odors?

Alter ation of air m ovement , humid ity o r temper ature? Emissions of hazardous air pollutants

Water Will the project result in

Discharge to a public water system?

Changes in currents or water movement

Changes in absorption rates drainage water runoff? Alterat ion s to th e cours e or flo w of fl ood w ater?

Impoundment, control or modification of the body of water equal or

quarter side 10 acres in s urface area? Discharges into surface water

Alterat ion o f the di recti on Alterat ion i n gro und water qu alit y? Contamination of public water supplies?

Violation of State Stream Quality Standards applicable? Location in a riverine or coastal floodplan?

Exposure of people or p roperty to water-related hazards such as

flooding? Location in a States coastal zone and subject to consistency with the

State Coastal Zone Management Plan? Impact on or construction in a wetland or inland floodplan?

SIMPLE CHECKLIST


4/27

Page 4


5/27

Page 5

Additional Information on Checklist

INTERACTION MATRICES

A Simple Interaction Matrix displays project

actionsor activities along one axis, with

appropriate environmental factors listed along

other axis of Matrix

When an action or activity is expected to have an

environmental impact, it is noticed by the

intersection cell and is further described in terms

of MAGNITUDEand IMPORTANCE.


6/27

Page 6

SIMPLE MATRICES

M

I

Varies from 1 to 10

Based on objective evaluation

of facts

Can be ve or +ve

Varies from 1 to 10

Based on subjective judgment

MAIN FEATURES OF SIMPLE MATRICES

Add it ion or summation of impacts can give useful information.

Matrix can be prepared WITH or WITHOUT mitigation measures.

Matrix can be prepared for different phases of the Project.

Addresses the direct impact only.

Dont include the information about time, duration etc.

Characterization of impacts in Matrix

SB =

SA =

B =

A =

a =

b =

O =

NA =


7/27

Page 7

INPUTS FOR INTERACTION MATRIX FOR DAMPROJECT

LEOPOLD MATRIX (WITHOUT MITIGATION)


8/27

Page 8

LEOPOLD MATRIX (WITH MITIGATION)

STEPPED MATRICES

Can be used to address the

secondary and tertiary

impacts.

Environmental factors are

displayed against other

environmental factors.


9/27

Page 9

Integrate impact causes and consequences

Useful for identifying impacts with a project.

Aid in organizing impacts for discussions

Minimal information on technical aspects of impacts

NETWORKS

NETWORK DIAGRAM FOR AN IMPOUNDMENT PROJECT


10/27

Page 10

NETWORK DIAGRAM OF DREDGING PROJECT

DIRECTED GRAPH OR DIGRAPH OF HOUSING PROJECT


11/27

Page 11

ADVANTAGES DISADVANTAGESChecklists

simple

rankingandweighting

simple to understand

and use

good for site selection

and priority setting

do not distinguish

between direct and

indirect impacts

do not link action and

impact

t he pr oc es s o f

incorporating values

can be controversial

Matrices link action to impact

good method for

displaying EIA results

difficult to distinguish

direct and indirect

impacts

significant potential

for double-counting of

impacts

Networks link action to impact

useful in simplified

form for checking for

second order impacts

handles direct and

indirect impacts

can become very

complex if used beyond

simplified version

Overlays easy to understand

good display method

good s it ing too l

address only direct

impacts

do not address impact

duration or probability

GISandcomputerexpertsystems

excellent for impact

identification and

analysis

good for experimenting

heavy reliance on

knowledge and data

often complex and

expensive

COMPARISON OF IMPACT PREDICTION TECHNIQUES

IT SEEKS TO:

Find better ways of doing things

Minimize or eliminate negative impacts

Enhance project benefits

Protect pubic and individual rights of compensation

PROPONENTS HAVE THE RESPONSIBILTIY TO:

Avoid or minimize impacts

Plan for managing impacts

IMPACT MITIGATION


12/27


13/27

Page 13


14/27

Page 14

LAND, AIR, WATER

Fugitive Dust Emissions

Emissions (during

construction and operation)

Potential environmental

outputs during the operation

phase

Labour employed, water

demands, wastewater

assessment

Soil contamination (solid

waste generation, spills etc)

Water sprinkling

Tuning and utilization of

EOPs + Proactive Control

Potential environmental

outputs during the operation

phase

Estimate wastewater

demands, wastewater

treatment,

SWMP covering six

functional elements, avoidingspills

LAND, AIR, WATER


15/27

Page 15

n Cause effect analysis of

projected waste input and

water quality response and

projection analysis for

achieving the desired water

quality standards.

n Waste load allocation to

river bodies.

Use of ComputerModels for Impactssessment

LAND, AIR, WATER


16/27


17/27

Page 17


18/27

Page 18


19/27

Page 19

Land conversion to industrial and residential uses.

Land conversion to agricultural uses.

Land conversion to transportation uses.

Significance is assigned on the basis of:

Role of that species in Food-Web relation

Role of species in carrying capacity

Evaluation of resiliency of plant or animal specie.

Species of Economic Importance

Changes in threatened species

Effect of the change in specie quantity

FLORA AND FAUNA

IMPACT MANAGEMENT PLANS

Design mitigation for all phases of the pro ject

State policy and standards

Designate responsibility

Provide a schedule of tasks, including training

Include a system for reporting

Include a system for monitoring and auditing

Contain a contingency plan

IMPACT MITIGATION


20/27

Page 20

TRANSPLANTATION OF TREES


21/27

Page 21




22/27

Page 22




23/27

Page 23



24/27


25/27

Page 25

A populat ion of about 50,000 persons is being affected

About 8000 houses and other bui ld ings are being affected

A total of 6,388 hectares of land (resident ial , agr icul ture and barren)

is to be acquired

28 brick kilns w ill be abandoned

MANGLA DAM RAISING PROJECT

An unprecedented and very attracti ve compensation package for the

affectees has been provided

Previous owners of the cultivated land will be permitted to cultivate

their lands when the reservoir level recedes

New City near Mirpur and four small towns along the periphery of the

reservoir are being constructed

Vocational training prog rams have been devised for local population



26/27

Page 26

Bridge over River Jhelum at Dhangali is being constructed

Pakistan Resettlement Policy is being followed for the resettlement

and compensation process

Monitoring and evaluation process w ill be used to assess the status

of the compensation package for the affectees

Internal and external monitoring will be done to assess theefficiency of the resettlement and compensation process


The monitoring and evaluation team will need at least one ex-post

evaluation survey to assess the achievements of the resettlement

objective

PAPs are being involved in the monitoring and evaluation work to

improve the performance of the resettlement program



27/27

interaction matrix all types of interaction matrix ,complete classification eia...

Documents