Strategy 1.1

Review and establishment of network for collection of additional necessary data

a. Review of network of hydrological observation stations

b. Review of the network of automatic weather stations and automated rain gauge stations and establishment of additional stations especially in respect of:

(i) Better network for evaporation data, and;

(ii) Rain fall data collection network through automated sensors

c. Collection of necessary additional hydro-meteorological and hydrological data for proper assessment of impact of climate change particularly in Himalayan region, coastal region etc including other improvements required in hydrometric networks to appropriately address the issues related to the climate change. The data should inter-alia include

(i) Coastal and estuarine water, salinity and tidal water levels and the changing discharges in both directions in estuarine areas;

(ii) Hydrological and hydro-meteorological data in low rainfall areas;

(iii) Hydrological and hydro-meteorological data above permanent snowline, glaciated areas, seasonal snow areas in Himalayan region;

(iv) Better network for collection of evaporation and rain gauge data using automated sensors;

(v) Establishment/strengthening of ground water monitoring network through construction of purpose built observation wells, sanctuary wells for coastal aquifer management and water quality monitoring;

(vi) Repeated collection of data about river geometry and morphology for monitoring erosion and carrying capacity;

(vii) Massive tidal hydraulics data collection; and

(viii) Surface and ground water quality data collection.

Under Strategy 1.1

a) Surface Water Monitoring - Hydrological Observations / Stations

CWC has established a network of hydrological observation stations in all river basins for the purpose of water resource planning and flood forecasting. 878 H.O. stations have been established and are in operation. The expansion of network to 2900 Gauge and Discharge (G&D) sites have been completed for collection of hydro-metrological data. Water quality is monitored at 396 sites. 100 H.O. stations have been upgraded and 800 new H.O. stations have been completed, out of which 236 have been established till 2015.
There are 176 flood monitoring stations established in the country and are operative (148 stations for water level forecasting and 28 stations for inflow forecasting). CWC has modernized 445 stations with sensor based data collection for online data collection and satellite based communication of data for processing.
Water level in 91 major dams is being monitored by CWC on daily basis along with storage capacity of these reservoirs.
The water data monitored as above is being regularly uploaded on India-WRIS with a view to having comprehensive water database in public domain.

b) Ground Water Monitoring - Ground Water Monitoring Stations

STATE-WISE GROUNDWATER MONITORING STATIONS (DUG WELLS & PIEZOMETERS)
S. No.	State/UT	Population (2011)	Area (km²)	Districts	Tehsil / Mandal/ Taluka				No. of Stations
S. No.	State/UT	Population (2011)	Area (km²)	Districts	Total	OE	C	SC	DW	PZ	Total
1	Andhra Pradesh	845,80,777	1,59,918	13	664	41	7	42	755	124	879
2	Arunachal Pradesh	13,83,727	83,743	17	149	0	0	0	29	1	30
3	Assam	312,05,576	78,438	27	155	0	0	0	398	62	460
4	Bihar	1040,99,452	94,163	38	533	0	0	11	507	37	544
5	Chhattisgarh	255,45,198	1,35,191	18	97	1	2	18	759	248	1007
6	Delhi	167,87,941	1,483	9	27	18	2	5	20	100	120
7	Goa	14,58,545	3,702	2	12	0	0	0	96	49	145
8	Gujarat	604,39,692	1,96,024	33	226	24	5	13	807	390	1197
9	Haryana	253,51,462	44,212	21	67	71	15	7	472	394	866
10	Himachal Pradesh	68,64,602	55,673	12	109	1	2	0	106	0	106
11	Jammu & Kashmir	125,41,302	2,22,236	14	59	0	0	0	256	32	288
12	Jharkhand	329,88,134	79,716	24	210	6	0	5	326	18	344
13	Karnataka	610,95,297	1,91,791	30	175	63	21	34	900	373	1273
14	Kerala	334,06,061	38,870	14	63	1	2	23	1252	266	1518
15	Madhya Pradesh	726,26,809	3,08,352	50	259	24	4	67	1068	352	1420
16	Maharashtra	1123,74,333	3,07,713	35	353	10	2	16	1414	237	1651
17	Manipur	25,70,390	22,327	9	38	0	0	0	13	10	23
18	Meghalaya	29,66,889	22,429	7	39	0	0	0	57	7	64
19	Mizoram	10,97,206	21,087	8	22	0	0	0	0	0	0
20	Nagaland	19,78,502	16,577	11	93	0	0	0	26	5	31
21	Odisha	419,74,218	1,55,707	30	485	0	0	0	1405	125	1530
22	Punjab	277,43,338	50,362	22	72	110	4	2	141	614	755
23	Rajasthan	685,48,437	3,42,239	33	241	172	24	20	734	377	1111
24	Sikkim	6,10,577	7,096	4	9	0	0	0	0	0	0
25	Tamil Nadu	721,47,030	1,30,058	32	201	374	48	235	767	584	1351
26	Telangana		1,15,150	10	446	42	8	55	345	354	699
27	Tripura	36,73,917	10,486	8	38	0	0	0	63	12	75
28	Uttar Pradesh	1998,12,341	2,40,928	70	305	111	68	82	1011	298	1309
29	Uttarakhand	100,86,292	53,484	13	49	0	2	28	48	134	182
30	West Bengal	912,76,115	88,752	19	341	0	1	53	771	785	1556
UT
1	Andaman and Nicobar Islands	3,80,581	8249		7				93	0	93
2	Chandigarh	10,55,450	114		1				1	24	25
3	Dadra and Nagar Haveli	3,43,709	491		1				12	0	12
4	Daman and Diu	2,43,247	111		2				11	5	16
5	Lakshadweep	64,473	30		4				0	0	0
6	Pondicherry	12,47,953	490		10				11	7	18
	Total	121,05,69,573	32,77,893	633	1262	1069	217	716	14674	6024	20698

OE: Over-Exploited, C: Critical, SC: Semi-Critical, DW: Dug Well and PZ: Piezo Meter

CATEGORIZATION OF BLOCKS/ MANDALS/ TALUKAS IN INDIA (2010-2011)
S.No.	State / UT	Units Assessed	Safe		Semi-Critical		Critical		Over-Exploited		Saline
S.No.	State / UT	Units Assessed	Nos.	%	Nos.	%	Nos.	%	Nos.	%	Nos.	%
1	Andhra Pradesh	664	536	81	42	6	7	1	41	6	38	6
2	Arunachal Pradesh	11	11	100	0	0	0	0	0	0	0	0
3	Assam	27	27	100	0	0	0	0	0	0	0	0
4	Bihar	533	522	98	11	2	0	0	0	0	0	0
5	Chattisgarh	146	125	86	18	12	2	1	1	1	0	0
6	Delhi	27	2	7	5	19	2	7	18	67	0	0
7	Goa	20	20	100	0	0	0	0	0	0	0	0
8	Gujarat	223	171	77	13	6	5	2	24	11	10	4
9	Haryana	116	23	20	7	6	15	13	71	61	0	0
10	Himachal Pradesh	8	5	63	0	0	2	25	1	13	0	0
11	Jammu & Kashmir	14	14	100	0	0	0	0	0	0	0	0
12	Jharkhand	210	199	95	5	2	0	0	6	3	0	0
13	Karnataka	270	152	56	34	13	21	8	63	23	0	0
14	Kerala	152	126	83	23	15	2	1	1	1	0	0
15	Madhya Pradesh	313	218	70	67	21	4	1	24	8	0	0
16	Maharashtra	353	325	92	16	5	2	1	10	3	0	0
17	Manipur	8	8	100	0	0	0	0	0	0	0	0
18	Meghalaya	7	7	100	0	0	0	0	0	0	0	0
19	Mizoram	22	22	100	0	0	0	0	0	0	0	0
20	Nagaland	8	8	100	0	0	0	0	0	0	0	0
21	Odisha	314	308	98	0	0	0	0	0	0	6	2
22	Punjab	138	22	16	2	1	4	3	110	80	0	0
23	Rajasthan	243	25	10	20	8	24	10	172	71	2	1
24	Sikkim	4	4	100	0	0	0	0	0	0	0	0
25	Tamil Nadu	1129	437	39	235	21	48	4	374	33	35	3
26	Telangana	446	341	76	55	12	8	2	42	9	0	0
27	Tripura	39	39	100	0	0	0	0	0	0	0	0
28	Uttar Pradesh	820	559	68	82	10	68	8	111	14	0	0
29	Uttaranchal	18	11	61	5	28	2	11	0	0	0	0
30	West Bengal	271	217	80	53	20	1	0	0	0	0	0
	*Total in States*	*6554*	*4484*	68	*693*	11	*217*	3	*1069*	16	91	1
UT
1	Andaman and Nicobar Islands	36	36	100	0	0	0	0	0	0	0	0
2	Chandigarh	1	1	100	0	0	0	0	0	0	0	0
3	Dadra and Nagar Haveli	1	1	100	0	0	0	0	0	0	0	0
4	Daman and Diu	2	0	0	1	50	0	0	1	50	0	0
5	Lakshdweep	9	6	67	3	33	0	0	0	0	0	0
6	Pondicherry	4	2	50	0	0	0	0	1	25	1	25
	*Total in UTs*	53	46	87	4	8	0	0	2	4	1	2
	Grand Total	6607	4530	69	697	11	217	3	1071	16	92	1

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राष्‍ट्रीय जल मिशन National Water Mission