Major Water Supply Schemes 1518

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Improvement of Water Supply Distribution System to...

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Improvement of Water Supply Distribution System to Hosur Municipality (Phase – I) in Krishnagiri District.

Improvement of Water Supply Distribution System to Hosur Municipality in Krishnagiri District was administratively sanctioned vide G.O. Ms. No. 109/ MAWS ( MA2)/ Dated: 29.08.2016 for Rs. 87.91 Crores under AMRUT Programme with funding pattern of Government of India 50% - 43.96 Crores, Government of Tamil Nadu share 20% - 17.58 Crores and Urban Local Body contribution of 30%-26.37 Crores.

Quantity	:	Intermediate : 27.61 MLD, Ultimate : 35.47 MLD
Cost of Installation	:	Rs 87.91 Crores
A.M Cost	:	1.51 Crores

Index Plan :

Prefatory :

Hosur was constituted as a Selection Grade Town Panchayat in the year 1962 and then upgraded to Second Grade Municipality in the Year 1992 vide G.O.(MAWS) No.5 Dtd.15.01.1992. In the year 1998 it has been upgraded to Selection Grade Municipality vide G.O.(MAWS) No.85 Dtd. 22.05.1998. In 2011 Vide Go.no.127 dt.08.09.2011 town panchayat Mathigiri, Village Panchayats Zuzuvadi,Mookandapalli,Avalapalli, Chennathur was included in Hosur Municipality and later upgraded to Special Grade municipality vide G.O.Ms.No.62, Municipal Administration and Water Supply (MA.5), 25th June 2012.

Hosur Municipality is located in the latitude 12° 44’, Longitude 77° 49’ , Elevation 861.00m in the Krishnagiri-Bangalore Highway (NH-7) and NH-207. Hosur is 48 km from Krishnagiri and 32 km from Bangalore. This is a major industrial town in north Tamil Nadu with growing nature.

The present area of the Municipality with added area is 72.41 sq.km with 45 wards comprising 11.71 sq.km of core area and 60.70 sq.km of added area with a total population of 2,44,518 as per 2011 census. As added areas were only panchayats earlier, the existing infrastructure available is in-capable to serve the population. As water supply is one of the primary key indicative factors for the economic development, it has been decided to take up the water supply system to the above added area and also improvements to the existing distribution system to ensure daily and equitable water supply for the entire municipality area. To balance the above issue the Municipal Administration has engaged M/s. TWIC, Chennai as a Consultant for the preparation of DPR for the improvements to distribution system to this Municipality, accordingly an estimate at a cost of Rs.87.91 Crores has been prepared. Further the works has been entrusted to TWAD Board, a pioneer department in the Water Supply front under Government of Tamilnadu.

Overall view on Existing Water Supply System

Current Status of Water Supply

The life line of Hosur Municipality is being met out from the Government of Tamilnadu’s Prestigious Hoganekkal water supply Project which was executed & maintained by TWAD Board ( a statutory body under GoTN) and the other sources are from Kelavarapalli Dam, one from Perandapalli River and few local wells. At present the entire Municipality is receiving 30.39 MLD of water supply from the above said source.

Source –1 Water Supply Source from Hogenakkal CWSS

The main source of water supply to Hosur Municipality is from Hogenakkal CWSS designed for the following quantity:

Sl.No	Urban Local Body	Demand in MLD)
1	Hosur Town	12.38
2	Zuzuvadi	0.54
3	Avalapalli	0.24
4	Mathigiri	0.55
5	Mookandapalli	0.65
6	Chennathur	0.28
Total		14.64

Source 2 CWSS to Hosur-SIPCOT from Kelavarapalli Dam

TWAD Board implemented SIPCOT Combined Water Supply Scheme with capacity of 27.28 MLD and presently receives about 4.00 MLD treated water from Kelavarapalli Dam is being supplied to the public and allocation of 11.0 MLD is made available for intermediate stage from this scheme and it can supply up to 14.0 MLD for ultimate stage

Source –3 Perandapalli Water Supply Scheme

The other source of water supply for the municipality is well field sources and surface water. A part of water supply in Hosur Municipality is from South Pennar River at Kumudapalli. There are 2 booster stations installed in the years 1980 and 1999 for drawing water from 7 bore wells located on the sides of South Pennar River at Kumudapalli and being supplied to 10LL OHT at Kamaraj Nagar.

The pump sets of 20HP to 60 HP are installed in these booster stations. The quantity water supplied by this source is about 2.0 MLD for 8 hrs working. For future need the pumping hours shall be increased to 24 hours, by which total 6.50 MLD can be supplied.

Existing Infrastructure network for Distribution System :

Service Reservoirs

The entire 45 wards of the Town is served with water supply through 99 Nos. of Service Reservoirs out of which 14 Nos are major Service Reservoirs sutiated in the core areas and rest are served through smaller capacity over head tanks.

Details of Existing Service Reservoir

Sl.No	Ward No	Location of OHT	Capacity of OHT in LL
3.2 Core Area
1	11	Bagalur HUDCO Phase (VII)	1.50
2	12	Dobi colony	0.30
3	18	Old ASTC Hudco (GLSR)	3.00
4	24	Parvathi Nagar GLSR	0.80
5	24	Parvathi Nagar GLSR	1.00
6	28	Therpet HUDCO	0.60
7	29	Kamaraj Colony OHT	10.00
8	29	Ulavar santhai two tier tank OHT(13+16LL)	29.00
9	33	Thally Road OHT	3.00
10	33	Thally Hudco	7.00
11	36	Balaji Nagar OHT	10.00
12	37	Rayakottai Hudco Phase X OHT	6.00
13	39	TNHB Phase IX OHT	0.50
14	39	Dinnur OHT	0.30

Sl.No	Ward No	Location of OHT	Capacity of OHT in LL
3.2 Other than Core & Added Area
1	1	Kamaraj Nagar	0.10
2	1	Senthil Nagar	0.60
3	1	Check Post – Punga Nagar	0.60
4	2	High School Telugu, & Tamil	1.00
5	2	Rajaji Nagar	0.60
6	3	Therpet HUDCO	0.60
7	3	Rajaji Nagar	0.60
8	3	Rajiv Gandhi Nagar MGR Nagar	0.60
9	3	Rajiv Nagar (Ganga Nagar) *	0.10

Sl.No	Ward No	Location of OHT	Capacity of OHT in LL
1	1	Kamaraj Nagar	0.10
2	1	Senthil Nagar	0.60
3	1	Check Post – Punga Nagar	0.60
4	2	High School Telugu, & Tamil	1.00
5	2	Jaibeem Nagar	0.60
6	3	Rajaji Nagar	0.60
7	3	Rajaji Nagar	0.60
8	3	Rajiv Gandhi Nagar MGR Nagar	0.60
9	3	Rajiv Nagar (Ganga Nagar) *	0.10
10	4	Abethagar Nagar	0.60
11	4	Kempegowda Nagar	1.00
12	5	Kamaraj Nagar	0.60
13	5	Santhapuram	0.60
14	5	Balaji Nagar	0.30
15	5	Anand Nagar	1.00
16	5	Mullai Nagar	0.10
17	5	Annamalai Nagar	1.00
18	6	Avalapalli	0.60
19	6	Bharathiyar Nagar	0.60
20	7	Thimmasandhiram	0.30
21	7	Thottagiri road Near school	1.00
22	7	Chamundi Nagar	0.60
23	7	Thottagiri	0.60
24	8	Sakthi Nagar	0.60
25	8	Thirupathi Nagar	1.00
26	8	Muniyamma Temple	0.60
27	8	Maharishi Nagar	0.60
28	9	NGGO’s colony	1.00
29	9	Moovendar Nagar	0.60
30	9	Vinayagapuram	1.00
31	9	Ramana Sri Nagar	0.30
32	9	Avalapalli Hudco Two Tier OHT	0.30
33	9	Muniyammakuttai	3.00
36	13	Kothur	0.30
37	13	Abdulkalam Nagar	0.60
38	13	Dwarak Nagar Exten.	0.60
39	13	Dwarka Nagar	0.30
40	13	Muniswar Nagar	0.30
41	13	Sivakumar Nagar	0.30
42	13	Samadhuvapuram	0.30
43	13	Maruthi Nagar	1.00
44	14	Surya Nagar	0.60
45	14	Arasanatti	0.60
46	14	Bharathi Nagar	0.60
47	15	M.M. Nagar	0.30
48	15	Gandhi Nagar	0.30
49	15	Rajaji Nagar	0.60
50	15	Nethaji Nagar	0.60
51	15	Annai Sathya Nagar	0.60
52	16	Mookandapalli	1.00
53	16	MGR Nagar	0.60
54	17	Matham	0.60
58	25	Akshya Garden	0.60
59	25	Narasamma Colony	0.60
60	25	Narasamma Colony	0.60
61	25	Sitharam Nagar	0.60
62	25	Narasamma Colony	0.60
63	25	Annamalai Nagar	0.60
64	26	Sanasanthiram Phase XVI	0.60
65	26	VOC Nagar	0.60
66	26	Kadavul Nagar	0.60
67	26	VOC Nagar	0.60
68	26	Sanasanthiram	0.60
69	27	Kasuvagatta	0.60
70	27	Chennathur	0.30
71	27	Choodasandiram	0.30
81	40	Jawahar Nagar	0.30
82	40	SBM Colony	0.30
83	40	Miduganapalli	0.30
84	41	Manju sree Nagar	1.00
85	41	Vikas Nagar	0.30
86	41	Andivadi	0.10
87	42	Sippaipalayam OHT	1.00
88	42	Karnoor	0.30
89	42	Karnur	0.10
90	43	Nethaji Nagar	1.00
91	43	Kuthiraipalayam	0.30
92	43	Old Mathigiri	0.30
93	43	Old Mathigiri GLR	0.40
94	43	Abirami Garden	0.30
95	44	Gadipalayam	0.30
96	45	Amman Nagar	0.30
97	45	Amman Nagar	0.30
98	45	Kurupatti	0.30
99	45	Kurupatti	0.10

Distribution network in Core Areas

The old Hosur town area was divided into eight distribution zones. The total length of distribution network is 110.21km. The water supply is being supplied through 15,416 No. of House Service Connection and 168 Nos. of Public Fountains. The most of the distribution network is provided with AC & PVC pipes.

Distribution network in newly added areas

(Mathigiri, ZuZuvadi, Mookandapalli, Avalapalli, Chennathur)

In the newly added area the total length of distribution network is about 150 Km. The water supply is being supplied through 10,088 nos of HSCs. The most of the distribution network is provided with PVC pipes.

Projected Water Supply Demand :

Demand calculation of Erstwhile Hosur Municipal Area (Core Area)
Sl.No	Description	Units	WATER DEMAND
	Period	Year	2017	2032	2047
1	2011 Provisional population
2	2017 -Projected Population		132500
3	2032- Projected Population			177000
4	2047 -Projected Population				228700
5	Water demand @ 135 LPCD	MLD	17.89	23.90	30.87
6	Fire demand as per CPHEEO Manual	MLD	1.15	1.33	1.51
7	Distribution Loss @10% of Water Demand	MLD	1.79	2.39	3.09
8	Total demand	MLD	20.83	27.61	35.47
	Existing Water Supply
	TWAD - Hoggenakal CWSS from River Cauvery	MLD	12.38	12.38	12.38
	TWAD - CWSS from Kelavarapalli Reservoir	MLD	4.00	8.00	11.00
	Perandipalli Scheme	MLD	2.00	4.00	6.50
	Local Source (Bore well)	MLD	5.60	5.60	5.60
	Total of Existing Water Supply	MLD	23.98	29.98	35.48

The water demand for entire municipal area is designed as per CPHEEO Manual.

Proposed Distribution system:

The objective of performing a detailed analysis is to obtain the required distribution piping for the rated ultimate stage water demand. Accordingly the distribution network is reclassified into 39 water distribution Zones based on the contour of the town, out of which 14 zones has been taken up for execution under phase I. The proposed distribution zones will have 574.15 Km length of water supply distribution network which is inclusive of 97.70 Km of existing network and 137.38 km of replacement network and 339 Km of new proposed network. A total of 145.702 Km of network has been proposed in Phase I and the remaining shall be proposed subsequently in Phase II.The zone wise details of proposed distribution system is shown in the table

Zone wise proposed pipeline details
				HDPE PN6				DI K7 PIPES
MBR	ZONE	Capacity of SR in LL	Existing /Proposed	110	125	160	225	250	300	350	400	450	500	TOTAL LENGTH
MBR-II	26	10.00	Proposed	17400	191	172	186	165	133	70				18317
MBR-II	30	5.00	Proposed	10159	253	116	482	124						11134
MBR-III	5	12.50	Proposed	9214	1105	155	768	346	120	231	18			11957
	13	3.00	Existing	1975		12	11	85						2083
	14	3.00	Existing	12275	238	294	116	67	257	38	14			13299
MBR-IV	6	16.00	Existing	5664	378	313	785	294	772	410	57	182	192	9047
	7	10.00	Existing	2668		60	231	264	177	236				3636
	8	7.50	Proposed	3832		94	260	487	169	19				4861
	22	5.00	Proposed	8689	311	76	509	168	57	18				9828
	25	12.50	Proposed	15099	191	364	741	220	107	301	12			17035
	36	6.00	Existing	19359		290	38	180						19867
	37	10.00	Existing	3247	196	405	184	571			42			4645
MBR-V	21	10.00	Proposed	14611		429	1002	719	102	429	47			17339
				124192	2863	2780	5313	3690	1894	1752	190	182	192	145702
			TOTAL	135148M				7900M						145702 M

Proposed Service Reservoirs:

Under the present project, it is proposed to divide the corporation area into 39 distinct water supply zone based on the terrain/profile of the city and the population distributed. Each water supply zones shall be served by Service Reservoir either existing or the new proposed reservoirs. The ward/streets to be fed from each service reservoir have been identified in consultation with ULB officials.

The total storage requirement for the entire municipality for intermediate and ultimate period is 215.39 LL and 277.41LL. Though existing storage capacity is about135.2 LL, an additional storage of 63.50 LL is being proposed in the Phase I scheme as immediate requirement with the individual capacity of service reservoir shown in Table 5.4 and the remaining shall be proposed subsequently in Phase II.

Proposed SR’s with capacity :

Sl.No	Zone NO.	Location of OHT	Capacity in (Lakh Litres)
1	ZONE-5	ASTC Hudco	12.5
2	ZONE-8	Rayakotta road	7.5
3	ZONE-21	C S Nagar	10.0
4	ZONE-22	Kumaran Nagar	5.0
5	ZONE-25	Venkatesh Nagar	12.5
6	ZONE-26	TNHB	10.0
7	ZONE-30	Lakshmi Narayana Nagar	5.0
8	ZONE-38	Parvathi Nagar GLSR	1.0

The infrastructure to convey the water from source to the proposed service reservoirs has been proposed. The existing feeder main are inadequate to feed the proposed service reservoir zones. Hence augmentation & improvements for feeder main of length 57.048 KM for conveying water to the service reservoir is also envisaged in this project. MBR’s are shown in table

Proposed MBRs

Sl.No	Location of MBRs	Proposed MBR’s
1	MBR-II @Avalapalli	5.0 LL
2	MBR-III @Mookkandapalli	10.0 LL
3	MBR-IV @Chennathur	10.0 LL
4	MBR-V @Mathagiri	5.0 LL

House service Connections

Sl.No	Details	Existing	Proposed Phase-I
1	HSC with MDPE pipes (In core Area)	15416	1400
2	HSC with MDPE pipes (In Added Area)	35009	18933
	Total	50425	20333

Present Stage

The work order for the scheme has been issued on 17.06.2017 and work commenced on 14.07.2017.

So far, 36% of work has been completed and expenditure incurred is 18.92 Cr (22%) .

This WSIS is targeted for completion by 07/2019 .

Salient Details

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