ENVIRONMENTAL IMPACT ASSESSMENT OF A

CONSTRUCTION SITE

Prepared by

Suyash Bhardwaj (U13CE029)

Introduction ◻ Environment assessment involves a study to determine any

unique environmental attributes from endangered species to existing hazardous waste to historical significance

◻ EIA maybe defined as the documentation of an environmental analysis which include identification, interpretation, prediction and mitigation of impacts caused by a proposed project.

◻ Project planning processes can integrate EA as essential step giving sensitivity to the social and economic as well as environmental impacts of projects

◻ The purpose of EIA are : ⬜ To facilitate decision making⬜ To aid in formation development⬜ To be an instrument of Sustainable development

EIA in India◻ In India many of the developmental projects till as recently as the

1980s were implemented with very little or no environmental concerns

◻ A major legislative measures for the purpose of environmental clearance was in 1994 when specific Notification was issued under section 3 and rule 5 of the environment protection Act 1986 called the ―Environment impact Assessment Notification 1994

◻ Categorization of EIA – ▪ Category A (Environmental Clearance from Central Government)▪ Category B (Environmental Clearance from State Level Expert

Appraisal Committee) ▪ Category B1(Requires EIA)▪ Category B2(Does not requires EIA)

TERMS OF REFERENCE◻ The purpose of TOR is to enable the project proponent for

planning and designing EIA and also TOR is expected to provide a format and structure

◻ Our consideration is building construction, township and area development

◻ Terms of Reference (TOR) for preparation of Environmental Impact assessment (EIA) and Environmental Management Plan for building construction projects (>1,50,000 sq.mtrs) township and area development projects (>50 ha) as per the EIA notification, 2006 has been devised to improve the quality of the reports and facilitate the decision making transparent and easy

◻ Ministry of Environment, Forest and Climate change provides with a detailed Terms of reference for 36 different sectors

Techniques Involved

◻ Checklists ◻ Matrices◻ Flowcharts◻ Spatial Mapping

◻ Qualitative Laboratory experiments for Air, Water, Soil etc.

◻ Socio-economic surveys for evaluating social and economical impacts

◻ Exhaustive field surveys for evaluating Biological Impacts

Impact Identification Impact Prediction

Proposed near Abhava Village in Chorasiya Taluka, on the barren khar lands which will serve like a satellite town.

CASE STUDY – TOWNSHIP PROJECT IN SURAT

Project Description▪ Convert existing barren

khar lands into a well designed town with lots of greens on the banks of river Mindhola

▪ Accommodation to nearly 50000 families

▪ Divided into 25 sectors with Residential, commercial, institutional and service zones

▪ Facilities like Markets, shopping centers, schools, banks, police station etc. located within short distances from the residences

▪ Commercial complex give rise to employment

▪ Each sector be self sufficient and accommodate 6000 to 10000 persons

Existing Environmental Status in Study AreaThe information about existing environment is collected keeping these eight environmental attributes in mind

▪ Ambient Air Quality▪ Meteorology▪ Water Quality ▪ Noise Levels▪ Soil Quality▪ Biological Environment▪ Socio-Economic Profile▪ Aesthetics

Impact Identification Matrix◻ Construction Phase

⬜ Site Clearing⬜ Excavation⬜ Construction ⬜ Backfilling and dressing of the

trench ⬜ Final clean up and restoration⬜ Transportation⬜ Material handling⬜ Employment of Labor ⬜ Green belt development ⬜ Sewage generation

◻ Operational Phase ⬜ Gaseous emissions⬜ Water Consumption and Sewage

generation⬜ Liquid discharge⬜ Solid waste generation ⬜ Employment ⬜ Green belt Development ⬜ Landscape development ⬜ Infrastructure development ⬜ Transport Network ⬜ Utility Networks ⬜ Recreation

Impact Identification during Construction phase

Clearing of Site

Excavations

Backfilling

Construction

Cleanup and Restoration

Transportation

Air

Water

Soil

Health and Safety Flora

Fauna

Possible Interaction

Impact Identification during Operation phase

Housing Commercial activities

Traffic and transportation

Vehicular emissions

Green belt development

Infrastructure

Air

Water

Soil

Health and Safety Flora

Fauna

Possible Interaction

Assessments of Impacts◻ Evaluation of impacts on water bodies, ambient

air, ambient noise environment and land has been attempted qualitatively

◻ Impact on Biological environment has been assessed by exhaustive field surveys

◻ The impacts are evaluated and superimposing the impacts on existing environmental data gives the assessment of impacts

Impact Assessment Matrix during Construction phase

Clearing of Site

Excavations

Backfilling

Construction

Cleanup and Restoration

Transportation

Green Belt Development

Air Negligible – Negative

Negligible – Negative

Negligible – Negative

Negligible – Negative

Negligible – Negative

Normal – Negative

Significant - Positive

Water Negligible – Negative

Negligible – Negative

Negligible – Negative

Soil Negligible – Negative

Negligible – Negative

Negligible – Negative

Negligible – Negative

Normal - Negative

Normal – Negative

Normal - positive

Health and Safety

Negligible – Negative

Negligible – Negative

Significant - Positive

Flora Negligible – Negative

Negligible – Negative

Negligible – Negative

Significant - Positive

Fauna Negligible – Negative

Negligible – Negative

Negligible – Negative

Significant - Positive

Impact Assessment Matrix during Operation phase

Housing Commercial activities

Traffic and transportation

Vehicular emissions

Green belt development

Infrastructure

Air Normal – Negative

Normal – Negative

Significant – Positive

Water Significant - Negative

Normal - Negative

Soil Normal – Negative

Normal - Positive

Health and Safety

Significant – positive

Negligible – Negative

Significant – Positive

Significant – Positive

Flora Normal – Negative

Negligible – Negative

Negligible – Negative

Significant – Positive

Fauna Normal - Negative

Negligible – Negative

Negligible – Negative

Significant – Positive

THANK YOU

REFERENCES

1] Murthy A and Patra H, Environmental Impact Assessment Process In India And Its Drawbacks(1st edn, 2005) > accessed 3 December 2016

2] 'Lecture 3 - Environmental Impact Assessment' (nptel.ac.in, 2012) <http://nptel.ac.in/courses/120108004/module3/lecture3.pdf> > accessed 3 December 2016

3] Partidario P, 'EIA Methodologies And Techniques' (Instituto Superior Technico) > accessed 4 December 2016

4] 'SCOPE 5 - Environmental Impact Assessment, Chapter 4, What Are the available Methods' (Scopenvironment.org, 2016) <http://scopenvironment.org/downloadpubs/scope5/chapter04.html> accessed 4 December 2016

5] Selvakumar S and Jeykumar R, 'ENVIRONMENTAL IMPACT ASSESSMENT FOR BUILDING CONSTRUCTION PROJECTS' (2015) 1 International journal of computational sciences and information technology

6] (1st edn, the Gazette of India, Extraordinary, Part-II, and Section 3, Sub-section (ii) MINISTRY OF ENVIRONMENT AND FORESTS 2006)