NANDYAL MUNICIPALITY Action Plan for Reduce of Water Losses
Total Page:16
File Type:pdf, Size:1020Kb
NANDYAL MUNICIPALITY Action plan for reduce of water losses Introduction: Nandyal is a special Grade Municipality in Kurnool Distract of Andhra Pradesh. The Nandyal town is extended in an area of 19.00 sq Kms. It is an important commercial centre catering the needs of several surrounding villages. It is also an important forest produce trading centre as being adjacent to Nallamalla forest. It is situated a midest of two famous milligrams centers, Srisailam and Mahanadi. The town cold is found on the Railway line between Guntakal and Guntur. In recent years, the town has grown in leaps and bounds. Many industries such as Sugar factory, Paper Mill, Cotton Mill, milk Dairy and various other such small scale industries have come up. The town is one of the important as an agricultural centre having several research centers on Government and Private sector. In view of successful implementation of major irrigation projects like S.R.B.C and Telugu Ganga it is surrounded by Agricultural fields. The conversion of meter gauge line to broad gauge between Guntur and Guntakal decisively made Nandyal, a major commercial centre in Rayalaseema. It will facilitate movement of Agriculture and Industrial products to other centers of the State. Of late, the town is also developing into an Educational centre with the establishment of an Agricultural Research Centers, Agricultural Colleges, University & Medical College, Many Degree Colleges, Engineering Colleges, Pharmacy College and Polytechnic College. The town is spread in an area of 19.00 Sq KM’s and situated at an latitude of 15 29’ and longitude of 78 29’. The levels of the town vary between the contours of +203.00M to +223.00M above MSL. The town is surrounded by river Kundu on eastern side, Maddileru on Northern side and by K.C Canal and Nandyal irrigation tank on Western Side, A small vagu, Chamakaluva passes through the centre of the town. The temperature of the town various from 12C to 44C, the relative humidity various from 13 to 100. Average rainfall is 400mm / annum. Due to the natural resources and other projects, the town has much potential for agrow based productions of commercial as well as food grains such as Paddy, Cotton, Banana, Mirchi, Wheat, Jower etc. The Nandyal town is divided into 30 Revenue wards, the population of the town as per 1961 census is 42,927 and it has increased to 212640 as per 2011 census. The decadal growth rate of population during 1961 – 2011 is 47.21%, 39.55%, 35.87%, 31.48% & 34.99%. The prospective population of the town is expected by the year 2032 are 312277 and for 2047 is 406968.The Households as per 2001 & 2011 are 37642 & 47479 respectively. As per 2011 FOR YEAR FOR YEAR FOR YEAR S. NO COMPONENT Census 2017 2032 2047 1 Population 2,00,516 237187 312277 406968 2 Per capita supply 135 135 135 135 3 Clear water requirement in 28.71 32.02 42.16 54.94 MLD 4 UFW @ 15% in MLD 4.31 4.80 6.32 8.24 5 Clear Water to Distribution 33.01 36.82 48.48 63.18 in MLD 6 Raw Water Requirement in 33.01 36.82 48.48 63.18 MLD PRESENT WATER SUPPLY SYSTEM SOURCE: The main source of drinking water is K.C. Canal from Sunkesula barrage and alternative source is Velugodu Balancing Reservoir. Water is being supplied daily to all wards of the town @113 LPCD. Adequacy of SS Tanks Per Capita Demand Population 135 lpcd 100 lpcd 50 lpcd 113 Present Population (2017) 237187 60 days 60 days days Prospective Population 312277 46 days 47 days 88 days (2032) Ultimate Population (2047) 406968 36 days 36 days 69 days However allocation of 0.3 TMC Due to sinking of 2720 SS Tank the Capacity is limiting to 1100 ML only Existing Capacity of SS Tank (409+1100) 1509.00 ML Less: 33 1/3% Losses for Evaporation, Seepage and Dead Storage 503.00 ML Available Raw Water for SS Tank 1006.00 ML TREATMENT SYSTEM: Two filtration plants one at Head water Works, Mahanadi road and the other at Weekly market with a combined capacity of 25.65 MLD is distributed by dividing the town into 8 water supply zones with 14 Nos of ELSR’s and 171.00 Km length of distribution network with 10 No of filters. Water Treatment Plants and Recommendations for Prospective and Ultimate Demands Type of Demand Total Existing Additional Capacity of Capacity of Requirement of Filtration Filtration Plant Water Plant in MLD In MLD Treatment Plant In MLD BASE YEAR 2017 36.82 25.78 11.04 PROSPECTIVE YEAR 2032 48.48 20.32 28.16 ULTIMATE YEAR 2047 63.18 20.32 42.86 Hence, 28.50 MLD Rapid Gravity Filtration Plant is Proposed for Prospective Demand and Further 14.50 MLD required for ultimate needs. After Installation of 28.50 MLD Filters at Bharat Head Water Works the Total capacity of filters =28.50+5.46=33.96 MLD S.NO Item Capacity 1 Total capacity of filters at Bharat Head Water 33.960 MLD Works 2 Head Water Works at Weekly Market 14.860 MLD Total installed capacity of WTPs 48.820 MLD There are two Summer Storage Tanks for drawing water during closure period of canal. The old S.S.Tank capacity is 400 ML is formed in the year 1957 at K.C.Canal on U/S of china cheruvu which serves drinking water to old town area. The New S.S.Tank is located at pedda cheruvu tank bund and its volume is 2730 ML restricted to storage at 1660.00 ML (level at 219.00 Mtrs). There are 14 Nos of ELSR’s. Existing Sl.No Location of ELSR Staging Avg.GL LWL MWL ELSRs 1 Municipal High School 1000 13.950 + 207.050 + 221.000 + 226.000 2 Sandya Talkies 900 12.600 + 209.400 + 222.000 + 227.000 3 YSR Nagar 500 15.000 + 208.250 + 223.250 + 227.250 4 YSR Nagar 700 15.000 + 209.550 + 224.550 + 228.550 5 Noonepalli 500 10.000 + 214.030 + 224.030 + 227.080 6 Noonepalli 700 12.000 + 214.030 + 226.030 + 229.080 7 Saibaba Nagar 1100 10.570 + 210.430 + 221.000 + 226.000 8 Gnanapuram 1100 13.045 + 208.955 + 222.000 + 227.000 9 SBI Colony 1200 13.260 + 211.240 + 224.500 + 229.500 10 Municipal Office 850 12.380 + 205.120 + 217.500 + 222.500 11 Booster ELSR 680 8.765 + 211.235 + 220.000 + 224.000 12 Prakasam Park 700 10.550 + 210.450 + 221.000 + 226.000 13 NGO’ Colony 900 12.500 + 214.500 + 227.000 + 232.000 14 Srinivas Nagar 470 15.000 + 208.250 + 223.250 + 227.250 TOTAL 11300 DISTRIBUTION The Nandyal town population is 212640 as per 2011 census and require 28.50 MLD at the rate of 135 Lpcd including UFW Losses. There are 19989 No of house connections , 223 No of Commercial Taps and Water Charges Collected from Domestic Service Connections is about Rs 80/- per month, 20/- per 1000 Liters (minimum 100/- Per Month) water charges collected from commercial Service Connections. There are about 6 No of Power Bore wells and 497 No. of Hand bores. The existing distribution is very old in the old town area and need remodeling. The distribution is not upto the satisfaction of the citizen of Nandyal. The Existing total length of distribution system is about 182.06 Km out of which 166.457 are considered in the distribution system design and 15.603 KM are discarded due to old age pipes, prone for contamination and cause for low head, and about and the total length of Proposed distribution system is about 228.871 Kms out of which 165.383 Kms are existing and 63.581 Kms are proposed. At present water is distributed through 15 nos. ELSRs located at entire town. Water is being supplied at 3 hours daily for the entire town through the Reservoirs and direct pumping. REZONING FOR DISTRIBUTION SYSTEM Proposed rezoning is made into 18 zones and reallocating the areas as per the capacity of the ELSRs and to generate min. 7mts head. The distribution for the Ultimate has been designed taking the peak factor of 3.0 as per CPHEEO at 135 lpcd and allowing 15% as UFW component to result 7.mts of terminal head. The use of HDPE is recommended for the pipes up to 250mm, DI K7 for the sizes 300 to 350mm and above 350mm, PSC 6 KSC is proposed. The widely used Hazen Williams formula to describe the flow through the pipes is used. The well-known HARDY CROSS method is adopted for the analysis of the design of the distribution net work. Pipe Material Dia (mm) Length (KM) 600 0.228 450 0.103 PSC 6 KSC 400 1.829 Sub Total 2.160 350 2.787 300 4.825 DI K7 Sub Total 7.072 250 4.314 200 5.235 HDPE PE100/6KSC 160 154.28 110 29.372 Sub Total 54.349 Total 63.581 Tariff Structure The socio economic study on willingness to pay for better services, Existing and Proposed tariff structure keeping in view the investment plan. The results of house hold survey reveals that the citizens are not satisfied with the present supply status and there is poor response for the willing ness to pay. However, there is positive response for the taking connections if the service is improved. The present status: No of house holds 58245 No of connections 23981 No of Commercial connections 253 Tariff - Flat Rate for non metered Rs.80/-per month Industrial, Institutional and Commercial Rs.20/- per KL Residential Connection Charges (Non- refundable deposit): Ordinary Tap Rs.8000/- per connection BPL Tap Rs.200/- per connection OPERATION AND MAINTENANCE PLAN The ULB as a local govt.