Table- 4.14. River water quality at Siddhirganj point of Shitalakhya river, Siddhirganj, Narayanganj. in ENVIRONMENTAL IMPACT ASSESSMENT (EIA) OF WORLD BANK FINANCED SIDDHIRGANJ 450 MW COMBINED CYCLE POWER PLANT (CCPP) PROJECT SIDDHIRGANJ, NARAYANGAJ

Table-4.14. River water quality at Siddhirganj point of Shitalakhya river, Siddhirganj, Narayanganj. Sl No.Parameters & unitJanuary 2009Feb 2009March 2009April 2009May 2009June 2009July 2009Aug 2009Sept 2009Oct 2009Nov 2009Dec 20091Conductivity µs/cm6007107787447213141731371642013292Temperature 0C24232525283029303028293Turbidity NTU344231312430811385023204Phosphate ppm0.730.681.031.080.480.470.240.200.190.220.685Silica ppm33.53523.522.5212318.547.510.5186Iron (Fe) ppm1.090.851.21.20.320.170.151.580.690.590.667DO ppm2.952.905.104.605.005.905.705.505.605.953.458Residual Chloride ppm3.505.000.100.100.050.140.990.901.550.880.0959Total Hardness as CaCO3 ppm16216818517917663354248608510Ca Hardness as CaCO3 ppm991001081009337202828365211 12Mg Hardness ppm +2 Ca as Ca ppm63 39.568 4077 4379 4083 37.526 14.515 814 1720 1124 14.533 2113M-Alkalinity ppm201.520326125812677.5375051588114TDS ppm300325434414370.5172.51026580120.5161.515COD oom3537151433.51511277.510.52316BOD5 ppm--1617.5-------17Oil and Grease ppm<10.0<10.0<10.0<10.0<10.0<10.0<10.0<10.0<10.0<10.0<10.018TSS ppm334228273231.57015849.522.52019Aluminium (Al) ppm0.020.010.030.020.000.020.020.040.040.020.0420Copper (Cu) ppm0.000.000.000.000.000.020.020.260.110.040.0121Zinc (Zn) ppm0.000.000.000.000.000.010.000.000.010.010.0022 23Coliform MPN/100ml Chloride (Cl -) mg/L0.00 400.00 420.00 55.50.00 56.50.00 800.00 300.00 190.00 260.00 14.50.00 150.00 2524pH7.427.257.577.567.477.167.167.767.47.57.34 Source: Data obtained from IPP