EMP - IAHE Environment management plan

manglamassociates 51 views 37 slides Jun 15, 2024
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About This Presentation

Environmental management plan


Slide Content

Environmental Issues & Environment Management Plan Dr.B.Mukhopadhyay National Highways Authority of India

Environment Management Plan (EMP) What is ? All efforts are being made to eliminate/minimise the any impacts pertaining to design, construction, operation and maintenance through effective tools is called Environmental Management Plan

Environmental Management Plan A Legal, contract document. Identified impacts, mitigation measures & costs. Site specific mitigation measures Borrow/Quarry/Dumping area management Monitoring stations Noise barriers Landscaping Oil interceptors Silt fencing Other pollution control measures

Contd. Hazardous waste management Safety and Hygiene Environmental Enhancement Implementation arrangements Institutional responsibility, time-frame. Reference to specifications in contractual clauses.

1. Air Planting of Pollution Resistant Species Change of alignment/Design of Bypass Dust Control Equipment/Measures (Dust masks; covering of vehicles carrying construction material; sprinkling water on haul roads, construction camps etc) Control of Pollution emission levels (Air Quality Monitoring) 2. Water Provision of oil interceptors/ Sedimentation Chambers near water bodies Pitching of slopes, Turfing of Embankment Relocation of Hand pumps/Wells/Tube Wells Design/ Upgradation of Cross Drainage Structures Water recharging pits Cascade of slopes for scour protection Checks/Control on use of water for construction Management of sewage and oil spills in the campsites Enhancement of Ponds/Wells/ Tubewells

3. Land Pitching to control erosion Oil Interceptors to prevent soil contamination Retaining Walls Stockpiling and productive re-use of Topsoil Rehabilitation of Borrow Pits Balance of Cut and Fill operations 4. Flora Change of Alignment to avoid/minimize tree felling Tree Plantation/ trensplantation Compensatory Afforestation 5. Fauna Change of Alignment Control of speeds Constricted section/Avoidance of Acquisition Providing safe crossing to animals

6. Quality of life Payment of replacement value of lost assets Resettlement and rehabilitation of PAPs Environmental enhancement 7. Cultural Environment Change of alignment Retaining Walls/Restricted Sections Protective Measures/Boundary wall Relocation of Shrines 8. Noise Change of Alignment/Bypass Noise Barriers, Vegetation Buffers Restrictive Measures 9. Human Use Values Change of Alignment/Bypass Minimisation of Acquisition Pedestrian Underpasses/Flyovers etc.

Environmental Monitoring AIR QUALITY: Air Quality is monitored (Methodology, Parameters, Standard, Instrument, etc.) as per guidelines of CPCB WATER QUALITY: Water Quality is monitored as per Standard – IS-10500 (Drinking Water), IS-2496 (sewage water) and Surface water (Class A, Class B, Class C, Class D), CPCB, WHO, APHA, etc.

Contd … …….. AMBIENT NOISE : Noise level is monitored as per CPCB guidelines and standard. Standards Code Category Limits in dB (A) Day Time Night Time A Industrial 75 70 B Commercial 65 55 C Residential 55 45 D Silence 50 40

Contd ……… SOIL QUALITY : Soil Quality is Monitored (Methodology, Parameters, Standard, Instrument, etc.) as per guidelines of Indian Standard, CPCB Standard, EPA, etc. Topography, Geology & Hydrology: Preparation Landuse Map, Generation of base line data and Mapping for Natural Resources like Rocks, Minerals, Water and also their Modeling regarding prospective views;

Contd …… Ecology ( Territorial & Aquatic): Base line data generation for Population, types of species, habitation, Foods, Growth/Decay, Reproduction, Interaction ( Physio -chemical & Biological) with the surroundings, Methods and Techniques of Preservation & Control, Uses for Sustainable Development. Raw Materials: Procurement, Transportation, Storage and Handalling Raw Matterials should be Eco-friendly Wastes (Solid & Liquid): Generation/Collection, Storage & Handalling , Treatment/Disposal, Reuse

Contd … . Construction Monitoring : Engineer, Contractor’s staff, Environmental Manager - compliance with specifications in contract and EMP. Compliance Monitoring : Project implementing office, Environmental Managers- compliance with EMP specifications. Regulatory Monitoring : Periodic Monitoring by Environmental Cell, HQ, MOEF

Contd … Continuous monitoring by project office/ engineer, w.r.t . standard specifications and other EMP provisions Site specific plans to be approved by engineer Activity schedule w.r.t . time framework Pollution monitoring by contractor and engineer Periodic reporting Compliance on conditions stipulated by MoEF /SPCB

Protection Clause 105.5-vehicles&machinery to be maintained to conform to SPCB norms Clause 111.9-all roads used for works should be clear of dust/mud Clause111.4-shall conform to relevant dust emission control legislation- SPM Level should not exceed 600mg/cum Clause 111.1-all equipment should conform GOI noise standards- at 1 mt from equipment should not exceed 75dB as per EPA,1986

Protection of Water Quality Clause 306 Silt Fencing to prevent sediments from entering in water body Silt fencing consists of with small size supported by wire mesh mounted on angle frame Sedimentation chamber

Borrow Areas MOST Specification 305.2.2/111.2 No borrow area shall be made available by Employer Are borrow areas in location deemed to be environmentally sensitive? No borrow area shall be opened without permission of Engineer No earth from ROW Maximum depth up to 1.5 mts Borrowing not from cultivable land

Contd …. CULTIVABLE LAND 15cm top soil preserved in stockpile Height of stockpile 2 mts . Slope not steeper than 1:2 Depth of borrow pits should not exceed 45cms NON CULTIVABLE LAND Depth up to 1mts Slopes not steeper than 1:4

Contd … Elevated Lands Borrowing up to 1.0mts or up to the level of surrounding field Borrow pits on the riverside Borrow pits should be 15 mts away from toe of river Digging up should not be continuous

Rehabilitation plan Written Agreement between contractor and owner Borrow area to be developed in consultation with owner Top soil should be reused for filling up borrow areas For Fish Pond Coordination with Fisheries dept.to advise on the feasibility How the access to borrow site being maintained?

Construction camps Clause 111.13 Is all waste being discharged in a manner acceptable to Regulatory bodies? Garbage bins to be placed at strategic locations & emptied regularly 111.4 Lubricants/oil storage area to be layered with clean sand Contaminated soil to be disposed off to avoid leaching

Contd … Proper drainage to avoid formation of puddles which can lead to mosquito breeding Clause111.6- contractor to provide protective clothing or appliances where substances are injurious to workers Shoes for laying asphalt, proper breathing masks,safety goggles for welding workers,ladders , working plateforms 111.8- steps to minimise dust nuisance

Contd … Waste in septic tanks to be cleared periodically On completion of work, all temporary structures shall be cleared, all rubbish burnt and other waste to properly sealed in pits/trenches Rehabilitation plan to be prepared in consultation with land owners/community The vehicle parking area & workshop shall be provided with oil interceptor

Contd … . Vehicle parking area to be made impervious using 75 mm thick P.C.C Bed over 150 mm thick brick bats Slope of 1:40 is to be kept so that wastewater flows into oil interceptor Device should have single chamber for separating oil and water Location of fuel storage >300mts

Land Erosion Embankment slopes less than 1:2- Grass turfing / Brick pitching Embankment slopes more than 1:2- Stone pitching Embankment abutting surface water bodies- Gabion structure

Contd … Clause 306.3 Contractor to submit erosion /sedimentation control plan Control measures in erodible exposed area due to clearing and grubbing, in excavated borrow areas

Construction Wastes Embankment fill material to be used as embankment fill material Sub grade of existing as embankment fill Existing sub grade recycled as sub grade of new pavement Bitumen material for access roads Other debris for filling up borrow areas with cover of layer of preserved top soil Bitumenous wastes to be dumped over 60mm thick layer of clay to avoid leaching

Road Safety CLAUSE 112.4-Contractor to take necessary measures for road safety during construction Barricades, Signages , markings, reflectory tapes, blinker lights at night,temporary access during construction Flagmen as per requirement Sign at the beginning &other at 120mt away approved by Engineer

Issues specific to Bridges Hydraulic modelling for new bridge sites Sensitivity of Aquatic habitat Scheduling of Construction Activities Water pollution Embankment protection River training Vertical and Horizontal clearance (in navigation channels) Use of Eco-friendly material for consolidation of pile pits

Contractor’s Responsibilities Permission from SPCB Hot mix Plant Batch mix plant Crushers, quarries Permission for opening new quarries Agreement with borrow area owners Maintenance of haul roads Health and hygiene of labourers Compliance to labour and other related laws Road safety during construction

Contd … Clause 302.4-blasting during fixed hours in day time Timing known to people within 500mts Red danger flags 10 mts before blasting warning siren Clause 302.5-sufficient time in case of delayed blast

Engineer’s Responsibilities Ensuring that the contractor complies with all regulatory requirements Monitoring and evaluation of the compliance of EMP Ambient air quality monitoring Construction scheduling w.r.t . environmental considerations Quarterly reporting to client on EMP implementation Periodic compliance reporting to MoEF through the project director Guiding the contractor on all incidental environmental issues

Responsibilities of Project Office Concurrent monitoring and review of the EIA/SIA process Conforming the legal status of the project area before starting work Submitting applications for regulatory clearances to the respective authorities Monitoring and reviewing the EMP compliance Taking the periodic reports from the engineer Ensuring that the periodic compliance reports are submitted to MoEF Reporting to the HQ any environmental issue of concern

Obligations of H.Q . Determine the regulatory requirements of the project Concurrent monitoring and review of the EIA/SIA process Project scheduling considering the regulatory requirements Taking all the required clearances before starting civil works Ensuring that EMP provisions are included in the BOQ Ensuring that the periodic compliance reports are submitted to MoEF

Environmental Management Budget Cost on Rehabilitation of land Monitoring on Air Quality, Water Quality, Noise level, Soil Quality, etc. Recurring expenditure for operating pollution control devices Cost on green belt development Cost on socio-economic development

Contd. Air quality : dust generation, emissions from vehicles, equipments & machinery Noise level : blasting operation, noise by vehicles equipments & machinery Surface & ground water hydrology : drainage, water availability impact on water sources

Thank you Maintain the balance Environmental Management = Responsible Engineering
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