ENP 301 : ENVIRONMENTAL IMPACT ASSESSMENT Lecture - 6
Part - II: EIA Methods and Techniques Session 5: Introduction to EIA Methods Categories of EIA Methodologies Checklist Methods
September 15, 2009
Course Instructor: Er. Ashwani Kumar, Asstt. Prof. Faculty of Planning, CEPT, Ahmedabad - 9
1
Phases of EIA Phase 1: Defining the Goals Phase 2: Identifying the Potential Impacts
Steps for Identification of Impacts ? Step 1: Base line study for Environmental Settings Step 2: Classification of Impacts Step 3: Development of Analytical Framework Step 4: Screening St 5: Step 5 Scoping S i
Phase 3: Predicting the Significant Impacts Phase 4: Evaluation of Impacts Phase 5: Incorporation of Measures or Alternatives for Impact Minimizations Phase 6: Reporting Phase 7: Monitoring and Feedback
Course Instructor: Er. Ashwani Kumar, Asstt. Prof. Faculty of Planning, CEPT, Ahmedabad - 9
2
Present session
Methodologies Selection
Type of EIA methods
Steps for Identification of Impacts ? Step 1: Base line study for Environmental Settings Step 2: Classification of Impacts Step 3: Development of Analytical Framework Step 4: Screening Step 5: Scoping
Checklist Methods and its Type
Course Instructor: Er. Ashwani Kumar, Asstt. Prof. Faculty of Planning, CEPT, Ahmedabad - 9
3
Methodologies Selection
No universal methodology (project type and setting)
Appropriate pp p for the task ((identification,, comparison, p , description) p )
Free from assessor’s bias (re-producible)
Economical (Data, cost, time, personnel, equipment)
Ad-hoc methods
Must be used with continuous application of judgment related to data input, analysis and interpretation
Course Instructor: Er. Ashwani Kumar, Asstt. Prof. Faculty of Planning, CEPT, Ahmedabad - 9
4
Methodologies Selection Purpose of using methods 1. Pertinent Environmental factors are included in the study (50 to 1000 item) 2.
Aid in planning the baseline studies in locations where the relevant environmental data are lacking
3.
Means of synthesis of information and evaluation of alternatives on common basis.
4.
Evaluating the cost effectiveness of mitigative measures
5 5.
Summarizing and Communicating the impact information
6.
A procedure to ensure the incorporation of the un-quantified environmental amenities and values Course Instructor: Er. Ashwani Kumar,
Asstt. Prof. Faculty of Planning, CEPT, Ahmedabad - 9
5
Type of EIA methods
Ad-hoc methods: Employing/ assembling the team of experts to identify the impact in their respective area of expertise with minimum guidance/aid.
Structured methods
Checklist Matrices Network Diagrams Overlays Cause Effect Tables
Course Instructor: Er. Ashwani Kumar, Asstt. Prof. Faculty of Planning, CEPT, Ahmedabad - 9
6
Phase 2: Identifying the Potential Impacts Step 3: Development of Analytical Framework
EIA methodologies: Checklist ?
Wh t it is? What i ?
Where checklist method is highly useful?
What are different type of checklists?
Where each of them is useful?
How to proceed?
What should be it’s content?
Can we quantify using the checklist method?
How to integrate quantification with Checklist?
Steps for Identification of Impacts ? Step 1: Base line study for Environmental Settings Step 2: Classification of Impacts Step 3: Development of Analytical Framework Step 4: Screening Step 5: Scoping
7
What it Checklist? 1.
A structured t t d and d classified l ifi d list li t incorporating i ti th actions the ti and d the th impact aspects (parameter/factors).
2.
It does not say conclusively about the existence of impact (likely impact)
3.
Purpose to prepare a framework (inclusive) so that the any of the likely important impact/factor is not missing in consideration
4.
Type of checklists Simple checklist Modified Checklist It may also be modified to incorporate the scale-rating (numerical scores/letter assign/linear proportionate) and weighting Comprehensive Questionnaire checklist
Health impact focused (USAID, WHO, WB)
Descriptive checklist
Course Instructor: Er. Ashwani Kumar, Asstt. Prof. Faculty of Planning, CEPT, Ahmedabad - 9
8
Simple checklists
Only list of environmental factors needs to be considered
No further information on specific level, data required, method or measurement method method, impact prediction/assessment
Systemization and summarization of thought (USDA)
It may include i l d th the mitigation iti ti iinformation, f ti additional/supportive information (ADB guidelines) Course Instructor: Er. Ashwani Kumar,
Asstt. Prof. Faculty of Planning, CEPT, Ahmedabad - 9
9
Type of Checklist Methods
1. Simple Checklist •
Provide list of likely impacts
•
List is categorized by environmental or social components
Course Instructor: Er. Ashwani Kumar, Asstt. Prof. Faculty of Planning, CEPT, Ahmedabad - 9
10
Summarization Relevant question Will the project ? Will the project result in?
Answers : • • • •
Yes May be N No Can not comment
Course Instructor: Er. Ashwani Kumar, Asstt. Prof. Faculty of Planning, CEPT, Ahmedabad - 9
11
Types of Checklist Methods
M difi d Ch Modified Checklists kli t
It incorporate small matrices in itself
Project/Activity might effect
Yes or No
If Yes, then
Try to identify the feature effected and upto what extent Feature-wise answer of impact nature (matrix)
Direct, Indirect Synergetic/ Mutually exclusive Short or long term Reversible or irreversible Sever/ moderate/Insignificant
Course Instructor: Er. Ashwani Kumar, Asstt. Prof. Faculty of Planning, CEPT, Ahmedabad - 9
12
Type of Checklist Methods
Comprehensive p Q Questionnaire checklist (Health) Direct impact p on People p of Project j Area
Will Something/ somebody
New comes/settles N / ttl in i area? ? relocated? Exposed? overburden? Aggravate? pathways contaminated? change happen? pollution threat? developmental p impact? p new activities?
Course Instructor: Er. Ashwani Kumar, Asstt. Prof. Faculty of Planning, CEPT, Ahmedabad - 9
13
Type of Checklist Methods Comprehensive Questionnaire checklist with Health focus Indirect Impacts
Will any change result any of above impact?
Direct Impact on Workers
Will exposed? (new environment, change immunity, living and working condition)
Impact on Health Services
Will Health service be overburdened?
Course Instructor: Er. Ashwani Kumar, Asstt. Prof. Faculty of Planning, CEPT, Ahmedabad - 9
14
Type of Checklist Methods
Descriptive Checklist
Describe the each factor and its status (potential environmental impact) p ) in Area
Covers all aspects Socio-economic, environmental (physical/Biological), health
Information on each factor contain:
Definition Measurement Prediction of Impact Functional Curves for data interpretation
Course Instructor: Er. Ashwani Kumar, Asstt. Prof. Faculty of Planning, CEPT, Ahmedabad - 9
15
Reading for next session Chapter 4 and 5 of Canter
Thanks you y
Course Instructor: Er. Ashwani Kumar, Asstt. Prof. Faculty of Planning, CEPT, Ahmedabad - 9
16