Environmental Management Framework (emf) coastal embankment improvement project phase-i project (ceip-i) April 29, 2013 Dhaka Bangladesh Water Development Board Ministry of Water Resources Government of the People’s Republic of Bangladesh

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  During design the segment wise soil requirement and location of the sources of soil for earthwork for each polder construction/rehabilitation should be identified.
  
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  Selection of Borrow Areas for earthen material collection.
  
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  No objection from land owner/Revenue authorities as applicable
  
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  Contractor shall ensure that borrow materials used for embankment filling is free of pollutants
  
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  Disposal of excess soil should be done at site with no objection from DoE and local authority
  

Borrowing close to the toe line on any part of the embankment is prohibited. Earth available from dredging as per design, may be used as embankment material (if necessary and applicable), subject to approval of the Engineer, with respect to acceptability of material. Borrowing to be avoided on the following areas:

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  Lands close to toe line and within 0.5 km from toeline.
  
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  Irrigated agricultural lands (In case of necessity for borrowing from such lands, the topsoil shall be preserved in stockpiles.
  
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  Grazing land.
  
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  Lands within 1km of settlements.
  
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  Environmentally sensitive areas such as reserve forests, protected forests, sanctuary, wetlands. Also, a distance of 500 m should be maintained from such areas.
  
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  Unstable side-hills.
  
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  Water-bodies (only if permitted by the local authority, and with specific pre-approved redevelopment plans by the concerned authority and engineer-in-charge)
  
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  Streams and seepage areas.
  
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  Areas supporting rare plant/ animal species.
  

The contractor must ensure that following data base must be documented for each identified borrow areas before commencing the borrowing activity that provide the basis of the redevelopment plan.

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  Chainage along with offset distance;
  
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  Area (Sq.m);
  
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  Photograph and plan of the borrow area from allsides;
  
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  Type of access/width/kutcha/pucca etc. from theroadway;
  
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  Soil type, Slope/drainage characteristics;
  
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  Water table of the area or identify from the nearest well, etc;
  
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  Existing land use, for example barren / agricultural /grazing land;
  
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  Location/name/population of the nearest settlement from borrow area;
  
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  Quantity excavated (likely and actual) and its use;
  
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  Copy of agreement with owner/government; and
  
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  Community facility in the vicinity of borrow pit.
  
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  Rehabilitation certificate from the land owner along with at least four photograph of the rehabilitated site from different angles.
  

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  Adequate drainage system shall be provided to the excavated area
  
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  At the stockpiling locations, the Contractor shall construct sediment barriers to prevent the erosion of excavated material due to runoff.
  

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  Overburden shall be removed.
  
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  During excavation slopes shall be flatter than 20 degrees to prevent their sliding.
  
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  In case of blasting, the procedure and safety measures shall be taken as per DOE guidelines.
  
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  The Contractor shall ensure that all workers related safety measures shall be taken.
  
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  The Contractor shall ensure maintenance of crushers regularly as per manufacturer‘s recommendation.
  
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  During transportation of the material, measures shall be taken to minimize the generation of dust and to prevent accidents.
  

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  Deposition of dredged material should be away from the channel edge to limit damage to streamside habitats. This also allows a degree of flooding to occur on the floodplain, thereby creating opportunities for wet grassland, scrub/wet woodland, wetlands and seasonally grazed rough grass.
  
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  Where possible biotechnical engineering, for example geotextiles, may be used to help stabilize the material and aid re-colonization.
  
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  Other possibilities include: drying and spreading the spoil over adjacent land, which can improve soil fertility in some cases, but may also smother important flora and habitats; excavating a trench and infilling it with spoil, thus minimizing disturbance to agriculture and the local environment; dumping off-site is possible but expensive, using spoil to create artificial wetlands.
  

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  Do not allow ponding of water especially near the waste storage areas and construction camps
  
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  Discard all the storage containers that are capable of storing of water, after use or store them in inverted position
  
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  Reinstate relief and landscape
  
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  Monitor drainage pattern after high down pouring and recession flood
  
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  Connect water pockets to the nearest drainage structures/canals
  

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  Water the material stockpiles, access roads and bare soils on an as required basis to minimize dust. Increase the watering frequency during periods of high risk (e.g. high winds)
  
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  All the work sites (except permanently occupied by the road and supporting facilities) should be reinstated to its initial conditions (relief, topsoil, vegetation cover).
  
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  Ensure that roads used by construction vehicles are swept regularly to remove sediment
  

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  Disturbance can be minimized if mechanical excavators work from one bank. If the channel is too wide, the digger must work within the channel. Disruption can be minimized by diverting the river down one side of the channel and dredging the other side while it is 'dry’. Smaller plant equipment generally limits the level of impact on bank-side and in-stream habitats.
  

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  Protect water bodies from sediment loads by silt screen or bubble curtains or other barrier.
  
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  Do not discharge cement and water curing used for cement concrete directly into water courses and drainage inlets
  
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  Monitor the water quality in the runoff from the site or areas affected by dredge plumes, and improve work practices as necessary
  

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  Fit vehicles with appropriate exhaust systems and emission control devices. Maintain these devices in good working condition.
  
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  Operate the vehicles in a fuel efficient manner
  
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  Cover haul vehicles carrying dusty materials (cement, borrow and quarry) moving outside the construction site
  
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  Impose speed limits on all vehicle movement at the worksite to reduce dust emissions
  
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  Control the movement of construction traffic
  
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  Water construction materials prior to loading and transport
  
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  Service all vehicles regularly to minimize emissions
  
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  Materials will be transported to site in off peak hours.
  

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  Water the material stockpiles, access roads and bare soils on an as required basis to minimize the potential for environmental nuisance due to dust.
  
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  Increase the watering frequency during periods of high risk (e.g. high winds).
  
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  Stored materials such as excavated earth, dredged soil, gravel and sand shall be covered and confined to avoid their being wind-drifted
  
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  Minimize the extent and period of exposure of the bare surfaces
  
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  Reschedule earthwork activities or vegetation clearing activities, where practical, if necessary to avoid during periods of high wind and if visible dust is blowing off-site
  
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  Restore disturbed areas/side of the embankment as soon as practicable by plantation/vegetation/grass-turfing
  
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  Establish adequate locations for storage, mixing and loading of construction materials, in a way that dust dispersion is prevented because of such operations
  
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  Crushing of rocky and aggregate materials shall be wet-crushed, or performed with particle emission control systems
  

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  Construction worker‘s camp shall be located at least500 m away from the nearest habitation.
  
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  The waste disposal and sewerage system for the camp shall be properly designed, built and operated so that no odor is generated.
  

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  Soil from fallow lands/ non-agricultural lands should be used in earthwork in embankments
  
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  Collect/strip top soil before earth filling and store and reuse it for final surfacing of embankment top and tree plantation/afforestation.
  
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  Strip the top soil to a depth of 15 cm and store in stock piles of height not exceeding 2m
  
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  Remove unwanted materials from top soil like grass, roots of trees and similar others
  
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  The stockpiles will be done in slopes of 2:1 to reduce surface runoff and enhance percolation through the mass of stored soil
  
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  Locate topsoil stockpiles in areas outside drainage lines and protect from erosion
  
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  Spread the topsoil to maintain the physico-chemical and biological activity of the soil.
  
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  The stored top soil will be utilized for covering all disturbed area and along the proposed plantation sites
  
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  Topsoil stockpiles will be monitored and should any adverse conditions be identified corrective actions will include:
  

o Erosion – temporary protective silt fencing will be erected;

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  Use of duckweed will remove soil salinity
  
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  Flushing with pre-monsoon rain water will reduce soil salinity.
  
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  Saline tolerant crops need to be cultivated.
  
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  Environmentally and socially responsive shrimp farming e.g. shrimp-rice farming system is encouraged.
  
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  Increasing upland discharge of fresh water will push back ingress of saline water from the sea
  
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  Green manure application is promoted
  
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  Ground water abstraction for shrimp farming should be avoided.
  

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  Maintain all vehicles in order to keep it in good working order in accordance with manufactures maintenance procedures
  
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  Organize the loading and unloading of trucks, and handling operations for the purpose of minimizing construction noise at the work site.
  

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  Appropriately site all noise generating activities to avoid noise pollution to local residents
  
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  Maintain all equipment in order to keep it in good working order in accordance with manufactures maintenance procedures.
  

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  Notify adjacent landholders/Schools prior any typical noise events outside of daylight hours
  
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  Employ best available work practices on-site to minimize occupational noise levels
  
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  Install temporary noise control barriers where appropriate
  
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  Plan activities on site and deliveries to and from site to minimize impact
  
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  Monitor and analyze noise and vibration results and adjust construction practices as required
  
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  Avoid working during 09:00pm to 06:00 am within 500m from residences.
  

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  Tree felling should be performed upon preliminary notification to the relevant authority (District Forest Office, DoE).
  
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  Preparation of maps in GIS format, cadastral description of trees to be felled, marking, and supervision of Forest Department are necessary elements of the procedure.
  
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  Provide adequate knowledge to the workers regarding nature protection and the need of avoid felling trees during construction
  
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  Fruit and timber trees owned by local population will be compensated at their replacement cost according to market prices
  

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  Tree seedlings are planted in a way that minimizes damage to the soil, while facilitating seedling survival. Tree seedling species are selected appropriate for maintaining long-term productivity.
  
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  Focus on tree species suitable for site condition
  
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  Prevent unreasonable species resulting in slow growth, less water and soil conservation and pest or disease outbreaks
  
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  Local species as planting materials, since natural selection and succession are most suitable for local climates and natural conditions
  
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  Ensure avoid single species or clone monoculture
  
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  Choose suitable species for berm, turfing and side
  

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  Leave set back requirements around streams, restricted areas e.g. native vegetation, protected riparian strips, historic and heritage sites, research areas.
  
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  For nursery raising, physical and biological controls are practiced to control the pests and diseases in the nurseries.
  
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  Do not plant spread-prone species on sites where there is a high risk of uncontrollable wilding spread beyond the boundaries of the plantation.
  
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  Consider appropriate species, patterns and layout when planting areas with high visual values and/or with important recreational values
  

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  Make a Borrow Pit at each site for collection of poly bags
  
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  Collect all bags at the pits after plantation
  
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  If feasible, inform private sector to collect those bag for recycling
  

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  During outbreak of any deadly plant disease develop a plan to manage pest in coordination with neighbors by identifying existing pests and diseases and the risks for the introduction of new pests and diseases.
  
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  Share the plan with Bank before application.
  

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  Install temporary sediment basins, where appropriate, to capture sediment-laden run-off from nursery
  
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  Divert runoff from undisturbed areas around the harvesting site
  
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  Stockpile of fertilizer or agrichemical away from drainage lines
  
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  Prevent all solid and liquid wastes entering waterways by collecting solid waste, oils, chemicals, fertilizer waste and transport to an approved waste disposal site
  

the surrounding lands

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  Pre-entry survey and prevention of damage to fauna prior to start up
  
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  Limit the construction works within the designated sites allocated to the contractors
  
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  Not be permitted to destruct active nests or eggs of migratory birds
  
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  Provide adequate knowledge to the workers regarding protection of flora and fauna, and relevant government regulations and punishments for illegal poaching.
  

the surrounding lands

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  Critical breeding areas of major fish species should be identified and declared as sanctuaries.
  
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  Creation of small lagoons and pools that may trap the fishes will be avoided.
  
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  Creation of artificial waterfalls and other barriers for migration will be avoided.
  
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  Natural river channel will be reinstated after completion of construction works
  

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  Sufficient free flow will be guaranteed in the design and construction work to ensure free pass of migrating fishes.
  
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  Hydraulic structure will be operated considering fish migration and spawning time
  
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  A guideline for area specific hydraulic structure operation guideline should be developed
  

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  Ensure dredging activity will create minimum sediment load in the water
  
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  Avoid dredging during spawning period of fish
  

Camps (MRDI, 2011)

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  Locate the construction camps at areas which are acceptable from environmental, cultural or social point of view.
  
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  Consider the location of construction camps away from communities in order to avoid social conflict in using the natural resources such as water or to avoid the possible adverse impacts of the construction camps on the surrounding communities.
  
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  BWDB should endorse detailed layout plan for the development of the construction camp submitted by the contractor. The plan should show the relative locations of all temporary buildings and facilities that are to be constructed together with the location of site roads, fuel storage areas (for use in power supply generators), solid waste management and dumping locations, and drainage facilities, prior to the development of the construction camps.
  
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  Local authorities responsible for health, religious and security shall be duly informed on the set up of camp facilities so as to maintain effective surveillance over public health, social and security matters
  

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  Adequate housing for all workers
  
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  Safe and reliable water supply
  
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  Hygienic sanitary facilities and sewerage system.
  
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  Treatment facilities for sewerage of toilet and domestic wastes
  
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  Storm water drainage facilities
  
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  Provide in-house community/common entertainment facilities, dependence of local entertainment outlets by the construction camps to be discouraged/prohibited to the extent possible.
  

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  Ensure proper collection and disposal of solid wastes within the construction camps
  
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  Store inorganic wastes in a safe place within the household and clear organic wastes on daily basis to waste collector.
  
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  Establish waste collection, transportation and disposal systems with the manpower and equipment/vehicles needed.
  
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  Do not establish site specific landfill sites. All solid waste will be collected and removed from the work camps and disposed in approved disposal sites
  

purposes

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  Provide fuel to the construction camps for their domestic purpose, in order to discourage them to use fuel wood or other biomass.
  
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  Conduct awareness campaigns to educate workers to protect the biodiversity and wildlife of the project area, and relevant government regulations and punishments on wildlife protection.
  

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  Provide adequate health care facilities within construction sites
  
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  Provide first aid facility round the clock. Maintain stock of medicines in the facility
  
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  Provide ambulance facility for the laborers during emergency to be transported to nearest hospitals.
  
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  Initial health screening of the laborers coming from outside areas
  
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  Train all construction workers in basic sanitation and health care issues and safety matters, and on the specific hazards of their work
  
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  Provide HIV awareness programming, including STI (sexually transmitted infections)
  
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  And HIV information, education and communication for all workers on regular basis
  
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  Provide adequate drainage facilities throughout the camps to ensure that disease vectors such as stagnant water bodies and puddles do not form. Regular mosquito repellant sprays during monsoon.
  
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  Carryout short training sessions on best hygiene practices to be mandatorily participated by all workers.
  
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  Place display boards at strategic locations within the camps containing messages on best hygienic practices
  

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  The payment of wages should be as per the Minimum Wages Act, Department of Labor, and Government of Bangladesh for both male and female workers.
  
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  Display of the minimum wages board at camps and major construction sites should be done in local languages at the construction and labor camp sites.
  
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  Wages should be paid to the laborers only in the presence of BWDB staff;
  
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  Contractor is required to maintain register for payment of labor wages with entry of every labor working for him. Also, he has to produce it for verification if and when asked by the Engineer, EMUand/or the concerned BWDB staff/Engineer‘s representative
  

Various activities to be carried out for site rehabilitation include:

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  Oil and fuel contaminated soil shall be removed and transported and buried in waste disposal areas.
  
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  Soak pits, septic tanks shall be covered and effectively sealed off.
  
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  Debris (rejected material) should be disposed of suitably.
  
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  Underground water tank in a barren/non-agricultural land can be covered. However, in an agricultural land, the tank shall be removed.
  
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  If the construction camp site is on an agricultural land, preserve top soil and good earth can be spread back for a minimum 30cm for faster rejuvenation of the land.
  
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  Proper documentation of rehabilitation site is necessary.
  

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  Photograph of rehabilitated site;
  
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  Land owner consent letter for satisfaction in measures taken for rehabilitation of site; and
  
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  Undertaking from contractor;
  

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  All necessary and adequate care shall be taken to minimize impact on cultural properties which includes cultural sites and remains, places of worship including temples, mosques, churches and shrines, etc., graveyards, monuments and any other important structures as identified during design and all properties / sites / remains notified. No work shall spillover to these properties and premises. The design options for cultural property relocation and enhancement need to be prepared.
  

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  All conservation and protection measures will be taken up as per design. Access to such properties from the road shall be maintained clear and clean.
  

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  During earth excavation, if any property is unearthed and seems to be culturally significant or likely to have archaeological significance, the same shall be intimated to the Engineer. Work shall be suspended until further orders from the PD. The Archaeological Department shall be intimated of the chance find and the Engineer shall carry out a join inspection with the department. Actions as appropriate shall be intimated to the Contractor along with the probable date for resuming the work.
  
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  All fossils, coins, articles of value of antiquity and structures and other remains or things of geological or archaeological interest discovered on the site shall be the property of the Government, and shall be dealt with as per provisions of the relevant legislation.
  

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  The Contractor is required to comply with all the precautions as required for the safety of the workmen as per the International Labor Organization(ILO) convention. The contractor shall supply all necessary safety appliances such as safety goggles, helmets, masks, books, etc., to the workers and staff. The contractor has to comply with all regulation regarding safe scaffolding, ladders, working platforms, gangway, stairwells, excavations, trenches and safe means of entry and outlet.
  

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  Adequate precautions will be taken to prevent danger from electrical equipment. No materials on any of the sites will be so stacked or placed as to cause danger or inconvenience to any person or the public. All necessary fencing and lights will be provided to protect the public. All machines to be used in the construction will conform to the relevant Bangladesh Standards (BS) codes, will be free from patent defect, will be kept in good working order, will be regularly inspected and properly maintained as per BS provisions and to the satisfaction of the Engineer.
  

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  All workers employed on mixing material, cement, lime mortars, concrete etc., will be provided with protective footwear and protective goggles. Workers, who are engaged in welding works, would be provided with welder's protective eye-shields. Stone-breakers will be provided with protective goggles and clothing and will be seated at sufficiently safe intervals.
  

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  The Contractor shall, at his own expense, conform to all anti-malarial instructions given to him by the Engineer and the EMU, including filling up any borrow pits which may have been dug by him.
  

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  At all times, the Contractor shall provide safe and convenient passage for vehicles, pedestrians and livestock. Work that affects the use of existing accesses shall not be undertaken without providing adequate provisions to the prior satisfaction of the Engineer.
  
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  The works shall not interfere unnecessarily or improperly with the convenience of public or the access to, use and occupation of public or private roads, and any other access footpaths to or of properties whether public or private.
  

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  Special consideration shall be given in the preparation of the traffic control plan to the safety of pedestrians and workers at night
  
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  The temporary traffic detours in settlement area shall be kept free of dust by frequent application of water
  

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  The Contractor shall take all necessary measures for the safety of traffic during construction and provide, erect and maintain such barricades, including signs, markings, flags, lights and flagmen as may be required by the Engineer for the information and protection of traffic approaching or passing through the cross section.
  

(Cement, soil).

after filling and

compaction of dredge materials

filling activity

measures and occurrence of erosion

sites

implemented

quality

archeological Sites

collection, transportation and disposal of grasses, debris and is deposited at designated site

Water bars & cut-offs .sediment traps to prevent water pollution caused by run-off from harvesting areas

institution