bi-annual rate contract for environmental monitoring and submission of statement for 2 x 250 mw stps, wbpdcl. , bi-annual rate contract for environmental monitoring and submission of annual statement for 2 x 250 mw unit of stps , wbpdcl . , collection of sample for emission through stack / stacks of the operating unit / units ( as per availability irrespective of the date for the particular month ) of the power station conducting analysis and submitting report etc . , collection of sample for ambient air from identified location prevailing at the power station conducting analyzing & submitting report containing relevant parameters including pb&co etc . all as per guideline / stipulation of moef / wbpcb . no of sampling may be different as per requirement of the plant . , collection of sample of dry ash from silo , analyzing & submitting report all as per guideline / stipulation of moef / goi / wbpcb / cea showing different parameters e . g geotechnical & engineering properties , shear properties & consolidation properties along with physical & chemical properties . , effluent water sample from two out fall locations & analyzing & submitting report as per guideline / stipulation of moef / wbpcb . no of sampling may be different as per requirement of the plant , monitoring of noise level at locations not exceeding four ( 4 ) in number analyzing , submitting report as per guidelines / stipulation of moef / wbpcb . , collection & conducting analysis of ground water samples during pre monsoon & post monsoon period as may be collected from dug well / bore well / tube well at up stream & down stream of existing & proposed ash pond and around 5 km radius of ash pond . parameters including , ph , tss , fluride , iron , nickel , arsenic , hg , pb , cu , zn , cadmium , chromium compounds , sulphate as so4 , nitrate as no3 . , collection & conducting bacteriological ( total coliform , e-coli , ph , dissolved o2 , bod ( 5 days at 20 deg c ) arsenic ) . analysis of drinking / portable water samples collected from plant & township & submitting report as per guidelines / stipulation of moef / wbpcb . , collection of samples for analysis liquid effluent water from boiler blow down at out fall location & submitting report etc . all as per guidelines / stipulation of moef / goi / wbpcb / cea . parameters to be tested are:oil & grease , cu , fe &tss ( all in mg / ltr ) . , collection of samples for analysising liquid effluent water from ash pond &plant effluents including canteen and submitting report etc . all as per guidelines / stipulation of moef / goi / wbpcb / cea . parameters to be tested are oil & grease , ph , tss ( all in mg / ltr ) , bod ( 3 day at 27 degc ) , cod , arsenic . , collection of samples for analysising from condenser cooling water& submitting report etc . all as per guidelines / stipulation of moef / goi / wbpcb / cea . parameters to be tested are ph , temp , free chlorine . , collection of samples for analysising & submitting report etc . all as per guidelines / stipulation of moef / goi / wbpcb / cea . parameters to be tested are free avialable chlorine , zinc , cr , phosphate . , collection of samples for fugitive air for four ( 4 ) separate locations , analizing & submitting report etc . all as per guidelines / stipulation of moef / goi / wbpcb . parameters to be tested are:pm10 , pm2 . 5 , so2 , no2 , o3 , nh3 , pb , benzene , arsenic , benzo pyrene , ni , co . , preparation of half yearly environment statement as per guideline of moef / goi / wbpcb comprising all above & necessary particulars .