Hydrological Observation Judisdiction of CSRO

The river basins under this Organisation for the works Hydro-meteorological observation are as given below:

1. Cauvery Basin from Biligundulu site and downstream
2. Pennar Basin
3. West flowing Rivers below Tadri to Kanyakumari
4. East flowing rivers between Pennar and Kanyakumari

Hydrological Observation Judisdiction Map of CSRO

Hydrological Observation Stations Under CSRO

Division-wise and basin-wise hydrological observation stations under CSRO as on 01.09.2019 are given in the tables below:

1. Division-Wise Details of Hydrological Observation Stations under CSRO
   

   Sl. No	Name of the Division	No of HO sites upto XI Plan period	No. of HO sites opened during and after XII plan period	Category wise number of sites				Total No. of HO sites
   				G	GD	GDQ	GDSQ
   1	Southern Rivers Division, Coimbatore	23	13	0	6	10	20	36
   2	South Western Rivers Division, Kochi	28	22	0	16	9	25	50
   3	Hydrology Division, Chennai	24	20	0	20	16	8	44
   	Total	75	55	0	42	35	53	130

    

2. Basin-Wise Details of Hydrological Observation Stations under CSRO
   

   Sl. No	Name of the River Basin	Name of the Division			Total HO sites
   		SRD	SWRD	HD
   1	Cauvery	23	0	7	30
   2	Pennar	0	0	12	12
   3	West flowing Rivers below Tadri to Kanyakumari	1	50	0	51
   4	East flowing Rivers between Pennar and Kanyakumari	12	0	25	37
   	Total	36	50	44	130

    

3. Basin & State-Wise Details of Hydrological Observation Stations under CSRO
   

   Sl. No	River/ Basin	State	G	GD	GDQ	GDSQ	Total
   1	Cauvery	Karnataka	0	0	0	1	1
   		Tamil Nadu	0	2	10	14	26
   		UT of Puducherry	0	0	2	0	2
   		Kerala	0	1	0	0	1
   2	Pennar	Andhra Pradesh	0	4	3	4	11
   		Karnataka	0	0	1	0	1
   3	West flowing Rivers below Tadri to Kanyakumari	Karnataka	0	1	6	1	8
   		Kerala	0	8	7	23	38
   		Tamil Nadu	0	2	2	1	5
   4	East flowing Rivers between Pennar and Kanyakumari	Andhra Pradesh	0	0	0	2	2
   		Tamil Nadu	0	19	8	7	34
   		UT of Puducherry	0	0	1	0	1
   	Total		0	37	40	53	130

(G – Gauge, GD – Gauge and Discharge, GDQ - Gauge, Discharge and Water quality, GDSQ - Gauge, Discharge, Sediment and Water quality)