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Q ST QUA TAT ALIT US O TY IN OF W N IN WA NDIA ATER A- 2 R ...

Q ST QUA TAT ALIT US O TY IN OF W N IN WA NDIA ATER A- 2 R ...

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9.1. Dissolved Oxygen ranges from 4 to 14.3 mg/l. Conductivityranges from49-102400 µmhos/cm. High value of conductivity is observed at Diamond Harbour(10240 µmhos/cm) due to intrusion of seawater in the estuary.The BOD value ranges from 0.2-11 mg/l.The highest value of 111 mg/l of BOD isobserved at Haridwar D/s.Theother locations observed with maximum BOD levelexceeding the criteria are U/sVindhyachal; Kanpur U/s (Ranighat); Kanpur D/s(JajmauPumpingStation);KannaujU/s (Rajghat); Varanasi U/s(Assighat);Varanasi D/s (Malviya Bridge); Kannauj D/s; Howrah-Shivpur;A/cR.Song Nr SyanarayanTemple D/ /s Raiwala; Kachhla Ghat;Narora(Bulandsahar); U/s & D/s Anoopshahar; Allahabad (Rasoolabad); Uluberia;Garden Reach; Allahabad D/ /s (Sangam); Bithoor (Kanpur); Diamond Harbour;Dakshineshwar; Kadaghat, Allahabad; D/s Mirzapur; Garhmukteshwar; Trighat(Ghazipur); Dalmau (Rai Bareilly); Kala Kankar (Raebareli); Baharampore;UpperRiver D/s Roorkee; Nabadip and Serampore.The count of Faecal Coliform(FC) ranges from 5-11 x10 5 MPN/100ml whereasTotal Coliform (TC) ranges from 5-25 x10 5 MPN/100ml. The maximum TotalColiform (TC) and Faecal Coliform (FC) level is not meeting the desired waterqualitycriteria at most of thelocations. The highest value of Total ColiformandFaecalColiformis observedat Dakshineshwar.TheconcentrationnofNitrate+Nitrite ranges from 0.02 -7.8 mg/ /l. The waterquality of River Gangaa withrespect to Temperature, pH,Conductivity, DO, BOD, Nitrite+ Nitrate, TotalColiforms (TC) and Faecal Coliform (FC) is given in Annexure-I(Table 5.1) ). Thestate-wise water quality status of mainstream of River Gangaa with respect toBOD,DO, Total Coliform, Faecal Coliform and Conductivity isgiven in Figure5.1 to 5.6.Figure 5.1: Water Quality of River Ganga in UttarakhandDO (mg/l)14.012.010.08.06.04.02.00.0MinMaxMeanGangotriAlkanandaB/C atRudraPrayag8.0 8.68.9 12.28.5 9.6<strong>WA</strong>TER <strong>QUA</strong>LI<strong>TY</strong> <strong>OF</strong> RIVER GANGA <strong>IN</strong> UTTARAKHAND‐ 2011MandakiniRudraPrayagAlkanandaA/C atRudraPrayag7.0 8.69.8 10.38.8 9.3AlkanandaB/C atDevPrayagBhagirathiB/C atDevPrayag7.7 7.611.4 9.89.1 8.6AlkanandaA/C at DevPrayagRishikeshU/S8.0 8.010.2 11.08.7 9.1D/SRaiwalaHaridwarD/ SD/SRoorkee5.2 4.26.411.0 8.88 10.47.8 6.78.356

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