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Environmental Management Plan Preparation of Development Plans in Gorganrood River Downstream

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Many dams have been constructed on the upstream of Gorganrood River and also there are some other dams under studies and construction too. Construction of these dams, increasing water needs, releasing agricultural drainage, meeting other saline tributaries with the river and releasing wastewater of downstream cities to the river caused increasing salinity and shortage of water at downstream. The downstream about 12 km of the river will be dried before approaching the sea during end of June, July, August and early September. Golestan Regional Water Co. decided to perform quality and quantity monitoring along this river. To monitor the water quality and provide necessary solutions to maintain and improve the water quality in compliance with standards and indexes, preparation of Environmental Management Plan for development plans in the watershed of Gorganrood River was delegated to Asarab Consulting Engineers Co.

Actual services:

  • Supplying field quality monitoring equipment for on-site measurement including portable multi-meter, portable turbidity meter and sampling containers for stabilization and transferring samples in standard conditions
  • Performing a 6-months sampling of physicochemical parameters, pollution, aquatic plants and fish in 5 stations
  • Measurement of temperature, pH, oxygen, salinity, electrical conductivity, turbidity and total suspended and soluble solids in the area using a portable Hach multimeter
  • Analysis of the sampling results including physicochemical data, ichthyology, aquatic plants and pollution data
  • Limnology studies and determination of ecological water needs based on environmental criteria by HABSEL model (Habitat Selection)
  • Modelling of water quality and ecological characteristics by MIKE model
  • Provision of Environmental Management Plan
  • Investigating the environmental conditions of the river in order to figure out the impacts of the plans accomplished or in the process in the upstream
  • Analyzing the saline trends and gradient along the river
  • Investigation of river water needs according to existing ecosystem and its fish
  • Sampling from plants to determine heavy metal contents
  • Zoning for water quality mapping using commands of GIS Interpolation