Major Water Supply Schemes 2064

Friday , 28th February 2020

Schemes
Cwss To Keeranur And Neikkarapatty Town Panchayats...

Schemes

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Cwss To Keeranur And Neikkarapatty Town Panchayats, 354 Rural Habitations In Palani & Thoppampatty Unions Of Dindigul District With River Cauvery As Source.

Est. Amount	:	Rs. 108.80 Crores
A.M Est. Amount	:	Rs.2.13 Crores

Prefatory :

Dindigul district lies in between the geographical coordinates of 10º 05’ to10 º 09’ N latitude and 77º 30’ to78º20’E longitude having an area extent of 6266.64 sq.km. The rural population of this district inhabits in 3428 habitations spreads over 14 Panchayat Unions. The annual normal rainfall of this district is 836mm in which the maximum rainfall is during the North east monsoon period. The district is drained by the major river system of Vaigai, Maruthanathi, Kodaganar, Nanganjiyar, Varadamanathi, Palar Poarunthalar, Kuthiraiyar and Amaravathi River. The main recharging factor to the ground water is the seasonal rain and the local river systems.

NEED FOR THE PROPOSAL

Most part of Dindigul District is facing drinking water scarcity. During summer months, huge extraction of ground water and sub surface water for agricultural activities are noticed which leads to the depletion of water level. Due to the depletion of ground water level, inadequacy in water supply is experienced.

Perennial potable water supply is the right of the public and hence the Government is emphasizing on assured protected water supply to all public with river water source to ensure continuous supply of protected drinking water to all public. The huge short supply of water in urban towns, less sustainable supply in rural areas and the announcement made by the Hon’ble Chief Minister of Tamil Nadu necessitates to formulate Providing Cwss To Keeranur And Neikkarapatty Town Panchayats, 354 Rural Habitations In Palani & Thoppampatty Unions Of Dindigal District With River Cauvery As Source.

Population and Requirement

The Base year (2015) Population of the beneficiaries is 223434. The Intermediate (2030) and Ultimate (2045) Population are 271446, 345173 respectively. Adopting a prorata supply of 90 LPCD for Town Panchayats and 55 LPCD for rural habitations and after deducting the existing supply and including 10% transmission loss, with minimum Pipe flow of 10 lpm .The Intermediate and Ultimate requirement works out to 11.24 MLD and 15.76 MLD.

BRIEF DESCRTPTION OF THE PROPOSAL

In G.O.(MS). No.166 / MA&WS(WS4) Department. / Dated.30.10.13 have accorded Administrative Sanction for Providing CWSS to Dindigul Municipality,3 TPs and 1276 habitations in 11 unions in Dindigul District with River Cauvery as source at a cost of Rs. 636.00 crore to install and Rs.18.10 crore to maintain annually. Provision of 17.80 mld has been made for Dindigul Municipality in the sanctioned proposal. Since the Dindigul Municipality has taken up a separate dedicated water supply scheme to Dindigul Municipality with Kamarajar dam as source, it has been decided to reallot the 17.8 MLD of water to other areas. During Collector’s conference held from 11.12.13 to 13.12.13 the Honorable Chief Minister of Tamilnadu has announced for Providing water supply scheme to rural habitations in Palani and Thoppampatti unions, and also Keeranur Townpanchayat and Neikarapatti Townpanchayat in Dindigul District. Therefore the Dindigul Municipality quantity has been proposed for Keeranur Townpanchayat and Neikarapatti Townpanchayat and rural habitations in Palani and Thoppampatti union in Dindigul District. Hence a bulk provision of water of 15.76 mld has been made at receiving Sump at Oddanchatram from the sanctioned proposal. From the sump the water will be pumped to 354 habitations including 12 new habitations in Palani and Thoppampattty Union and Neikarapatty & Keeranur Town Panchayats in Dindigul District. Balance 2.04 MLD (17.8-15.76) has been reserved for providing CWSS to 135 rural habitations in Vaiyampatti union and Marungapuri union of Trichy District at Kottaikaranpatti booster sump.

DETAILED DESCRIPTION OF THE PROPOSAL

The Ultimate demand for the beneficiary habitations, worked out as of 15.76 MLD which will be available as bulk quantity in the Proposed Sump at Oddanchathram, and Water will be pumped from Oddanchathiram Sump to the following proposed Sumps.

S.No	Location of the Sump FROM	Name of the Sump / SR TO	Beneficiary List
1	Oddanchathiram (9.2LL)td>	(1) 1.20 LL Kallimanthayam Sump and interconnected to existing 1.0LL Sump for 101 habitations. (2) Intermediate Sump @ Saravanapatty(7.65LL) near Thoppampatty Union Office.	Bulkprovision made in the sump for 101 habitations in 15 Panchayats of Thoppampatty Union.
2	Saravanapatti (7.65 LL) ) (1)5.00 LL Sump @ A.Kalayamputhur Existing Sump of 12.50 LL capacity @ Indranagar Colony Sump(For175 Hab)	(1)Thoppampatty Union(2.00 LL Sump) (2)To Keeranur T.P ServiceRreservoirs (3)2.00 LL Eviction Nagar Sump (4)5.00 LL Sump @ A.Kalayamputhur 1) Neikkarapatty T.P SRs Only (2) 43 Habitations of 14 panchayats (3) Existing Sump of 12.5LL capacity @ Indranagar Colony Sump(175 Hab scheme) (1) 92 Habitations of 18 Panchayats	(1) 34 Habitations of 21 Panchayats. (2) Keeranur Town Panchayat only (3) 83 Habitations of 21 Panchayats.in Thoppampatti union and 1 habitation namely Veppanvalasai ADColoney in Melakkottai panchyat in palani union 1) Neikkarapatty T.P SRs Only (2) 43 Habitations of 14 panchayats (3) Existing Sump of 12.5LL capacity @ Indranagar Colony Sump(92 Hab) (1) 92 Habitations of 18 Panchayats

MAIN PIPE LINES

Oddanchatram to Kallimandayam villakku 711x 6.30mm thick MS pipe--- 17450 m Kallimandayam villakku to Kallimandayam sump (For 101 habitation sump)	-	250 mm DI K7---1100 m
Kallimandayam villakku to Saravanapatti sump	-	500 mm DI pipe--- 15730 m 600 mm DI pipe--- 2770 m
Saravanapatti sump to Keeranur town panchyat	-	160 mm PVC 4 ksc pipe-4800 m
Saravanapatti sump to Eviction nagar villakku	-	600 mm DI K7 ---8270 m 350 mm DI K7 ---3870 m
Eviction nagar villakku to A.Kalayamputhur sump	-	400 mmDI K7 – 9630 m
A.Kalayamputhur sump to Neikkarapatti TP SRs	-	200 mm DI K7-- 2840 m 160 mm PVC 4 ksc pipe—1130 m
A.Kalayamputhur sump to Indiranagar colony -sump	-	350 mm DI K7--3420 m

BOOSTER STATIONS

OTTANCHATHRAM	3469 LPM	52 m	Centrifugal pumpset	(3+1)Nos
THOPPAMPATTI (Saravanapatti sump)	2735 LPM	62m	Centrifugal pumpset	3+1Nos
THOPPAMPATTI(Saravanapatti sump) (For Keeranur T.P)	526 LPM	7 m	Open well pumpset	1+1 nos
EVICTION NAGAR (83+1 Habitations of 21 Panchayats in 175 CWSS scheme).	2251 LPM	20m	Centrifugal pumpset	1+1Nos
Sump@A.Kalayamputhur	3339 LPM	20m	Centrifugal pumpset	1+1 Nos(For existing sump at Indiranagar)
	900 LPM	39 m	Open well pumpset	1+1 no(For NeikkarapattiTP SRs
	663 LPM	52 m	Open well pumpset	1+1 no(For hab in palani union)
	1023 LPM	36 m	Open well pumpset	1+1 no(For hab in palani union)

Pump rooms for the pumping stations for Oddanchatram , Thoppampatti and for Eviction Nagar are 8m x 5 m ,6m x 4m and 4 m x 3m respectively.

SUMPS

Sump Location	Existng Sump (Utilising the sumps of Existing CWSS)	Proposed Sump
UNION
Palani	1	2
Thoppampatty	1+MSR	3
TOWNPANCHAYATS	-
Keeranur	-	-
Neikkarapatty	-	-

Keeranur town panchyat

The intermediate and ultimate stage populations are 8200,,9080 and the requirement are 0.738 MLD, 0.817 MLD.The Keeranur town panchyat is getting water from 3 Infiltration Well located in Shanmuga river, thewells are functioning with lesser yield during summer season that is 4 months in a year.During that period the designed supply could not be supplied to all project area and also 4 numbers of borewell,19 numbers of minipower schemes,and 2 number of handpumps are working with lesser yield . Now the present supply is only 30 lpcd instead of 90 lpcd.For suppling the design quantity, the balance quantity of intermediate and ultimate stage after deducting the existing supply are 0.568 mld and 0.654 mld is proposed in this proposal.

Hydraulic design of proposed water supply distribution zone as performed using EPANET software. The input of model consists of a network of nodes and pipes in a distribution zone. The parameter of each node and pipe such as length, diameter, pipe material, design flow (ultimate) rate, peak factor, and ground elevation of the node along with the source node with its elevation from the input required to simulate the distribution network. The model then simulates the operating condition of the zone and calculates the best possible combination of pipe size to obtain the pre specified minimum residual pressure for the rated water demand.

Saravanapatti sump to Keeranur T.P.--- 200 mm PVC 4 ksc pipe—5300 m (Directly pumped to service reservoir)

Service Reservoir----- 30,000 Litre (Existing)l3,00,000 Litre(Existing)
Requirement --- 2,46,000 litre

Hence no new service reservoir is proposed

Neikkarapatti Townpanchyat

The intermediate and ultimate stage populations are 15690,,18800 and the requirement are 1.41MLD,1.69 MLD.The Neikkarapatti town panchyat is getting water from 4 Infiltration Well located in Shanmuga river, thewells are functioning with lesser yield during summer season that is 4 months in a year. During that period the designed supply could not be supplied to all project area and also 35 numbers of minipower schemes,and 14 number of handpumps are working with lesser yield. Now the present supply is only 42 lpcd instead of 90 lpcd.For suppling the design quantity, , the balance quantity of intermediate and ultimate stage after deducting the existing supply are 0.97 mld and 1.28 mld is proposed in this proposal.

A.Kalayamputhur sump to Neikkarapatti Service Reservoir	-	200 mm DI K7-- 2840 m 160 mm PVC 4 ksc pipe—1130 m
Service Reservoir	-	2,00,000 Litre (Existing)l 1,50,000 Litre(Existing) 1,20,000 Litre (Proposed)
Requirement	-	4,70,000 litre

PALANI UNION

The Palani union consists of 136 rural habitations and the intermediate and ultimate stage populations are 124299,159333 and the requirement are 6.84 MLD,8.76 MLD out of this 92 habitations are covered under CWSS to 175 habitation in Dindigul District with Palar-puranthalar river source, the balance 44 habitations are not covered under river source. The 92 habitations are not getting the designed quantity of water, due to lesser yield during summer season that is 4 months in a year. These habitations are designed for 55 lpcd with 22 lpcd existing water supply., The 44 habitations are designed for 55 lpcd with 10 lpcd existing supply, since these habitations are not covered by river source. For supplying the design quantity to all habitations , the balance quantity is proposed in this proposal

Location	Sump & Capacity
A.kalayamputhur	Union Sump for 44 habitation in palani union 5.00 LL
	Indiranagar colony	Interlink to existing sump of 12.50 LL for 92 habitation in CWSS to 175 habitation in Dindigul District

ServiceReservoir

Panchyat	Location	Capacity	Pumping
Sivagiripatty	Sivagiripatty	1,50,000 litre	Pumping
Sivagiripatty	Thirunagar	60,000 litre	Pumping
Sivagiripatty	Thirunagar	30,000 litre	Pumping
Sivagiripatty	M.G.R.Nagar	20000 litre	Pumping
Sivagiripatty	Cheran jeeva nagar	20,000 litre	Pumping
Sivagiripatty	Palaniandavar nagar	10,000 litre	Pumping
Karadikoottam	Indiranagar west	10,000 litre	Pumping
Periyammapatti	Kuppandishet pallikoodethevalasu	20,000 litre	Pumping

THOPPAMPATTI UNION

The Thoppampatti union consists of 218 rural habitations and the intermediate and ultimate stage populations are 123257,157960 and the requirement are 6.78 MLD,8.69 MLD. out of this 83 habitations are covered under CWSS to 175 habitation in Dindigul District with Palar-puranthalar river source,and 101habitations are covered under CWSS to 101 habitation in Dindigul District with Cavery river source the balance 34 habitations are not covered under river source. The 83 habitations are not getting the designed quantity of water, due to lesser yield during summer season that is 4 months in a year. These habitations are designed for 55 lpcd with 25 lpcd existing water supply., The 101 habitations are originally designed for 40 lpcd, for increasing the prorate supply to 55 lpcd the balance quantity of 15 lpcd has been proposed as bulk provision in the proposed sump of 1.20 LL capacity near existing sump for 101 habitation at Kallimandayam. The 34 habitations are designed for 55 lpcd with 10 lpcd existing supply, since these habitations are not covered with river source. For supplying the design quantity to all habitations, the balance quantity is proposed in this proposal.

Location	Sump & Capacity
Kallimandayam	Sump for 101 habitation in Thoppampatti union of 1.20 LL	Interlink to existing sump of 1.00 LL for 101 habitation in CWSS to 101 habitation Thoppampatti union
Saravanapatti	7.65 LL Sump at Saravanapatti for 34 habitation in Thoppampatti union, Keeranur Townpanchayat and to Eviction nagar,A.Kalayamputhursump
Eviction nagar	Sump for 83 habitation in CWSS to 175 habitation in Thoppampatti union of 2.00 LL	Pumped to existing MSR of 2.00 LL capacity and distributed through existing infrastructure

SRs and D’ Systems

Description	Existing and Proposed Service reservoir																		Dsystem (in m)
	0.10 LL		0.15LL		0.20 LL		0.30 LL		0.90 LL		1.2 LL		1.5 LL		2.0 LL		3.0 LL
	E	P	E	P	E	P	E	P	E	P	E	P	E	P	E	P	E	P
TOWN PANCHAYATS
KEERANUR							1										1		-
NEIKKARAPATTY												1	1		2				-
UNIONS
PALANI	12	5	3			9	18	8		2									6000 m
THOPPAMPATTI	23	8	2			2	7												30500 m

RTC CLEARANCE

This proposal was cleared on 18-07-2014 with the following observations (1) The execution of the scheme shall be taken only after the execution of main Natham cwss so as to ensure the availability of bulk supply @ ottanchatram sump (2) The project period of execution shall be restricted to one year (3) The location of all sumps should be confirmed, the relavant field map sketchs should be collected.

SLTC CLEARANCE

This proposal was cleared on 22-07-2014 with following observations

Observation in SLTC	Reply
Explore the possibility of tapping the quantity of Keeranur TP from the pumping main of Ottanchatram to Thoppampatti	Entire quantity for Keeranur TP is collected in common sump at saravanapatti and directly pumped to all service reservoirs without additional sump for Keeranur TP
Analyses the possibility of providing stand post instead of sumps	From the saravanapatti sump the water will be pumped to existing stand post at eviction nagar, supplied to 83 habitations without sumps.

RATES

PWD and TWAD Board Schedule of Rates for the year 2014-2015 have been adopted in this proposal.

COST

Cost of Installation	Rs. 108.80 Crore
Annual maintenance Cost	Rs. 2.13 Crore
Cost per 1000 Litres	Rs 14.39
Percapita for 2015	Rs 4872

PROPORTIONATE COST OF THE BENEFICIARIES

Sl no	Name of Beneficiary	Proportionate cost
Sl no	Name of Beneficiary	Project Cost Rs. In Crores	Annual Maintenance Cost Rs. In lakhs
1	Keeranur T.P	485.28	8.59
2	Neikkarapatti T.P.	818.70	17.29
3	Rural habitations (354)	9576.02	187.12
	Total	108.80	213.00

The projected water demand is given below:

FUND :

The scheme is being implemented with NABARD/MNP funds.

MAINTENANCE:

The scheme after commissioning will be maintained by TWAD Board.

PRESENT STAGE:

The scheme was administratively approved, vide G.O.Ms.No. 13, dt.10.02.2017 for Rs.108.80 Crore and Technically Sanctioned vide CER/TWAD/MDU/ No.10/ 2017-18/ Dt. 17.07.2017 for Rs.108.80 Crores.

The work order for the scheme has been issued on 17.05.2018 to K.C.P.Engineers Pvt Ltd, Coimbatore and works commenced.

Salient Details

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