Part1 - Andhra Pradesh Municipal Development Project Website

Comprehensive Planning of Water Supply Service improvements In the following ULBs(1) Ananthapur Municipal Corporation, (2) Chittoor Municipality and (3) Badvel MunicipalityDPR Final – Ananthapur M. C. – Environmentsubjected to droughts due to bad seasons. The normal rainfall of the district is 553.0 mm, by which itsecures least rainfall when compared to Rayalaseema and other parts of Andhra Pradesh. Thenormal rainfall for the South West Monsoon period is 338.0 mm, which forms about 61.2% of thetotal rainfall for the year. The failure of the rains in this South West monsoon period of June toSeptember will lead the District to drought by failure of crops. The rainfall for North East monsoonperiod is 156.0 mm only, which forms 28.3% mm of the total rainfall for the year (Octoberto December). The other months are almost dry; March, April and May are warm months when thenormal daily maximum temperature ranges between 29.1 0 C to 40.3 0 C. November, December andJanuary are cooler months when the temperature falls about 15.7 0 C, Hindupur, Parigi,Lepakshi, Chilamathur, Agali, Rolla and Madakasira Mandals being at High Elevation are morecooler than the rest of the Mandals in the District.b. The weather of the town is generally hot and partially humid which is common in any tropical area.The summer usually extends from March to June, The rainy season is from July to October andwinter season is from November to February. The temperature of the town varies from 20 0 C to50 0 C. The average annual rainfall in the town area is around 500 mm. Ananthapur region wasidentified as 2 nd lowest rainfall area after Jaisalmir in Rajasthan. Ananthapur region is surrounded bymountains and hence NE and SW monsoons cannot provide proper rainfall. Thus, it is a chronicallydraught prone area in Andhra Pradesh State.3.1.5 Surface water Status and Qualitya. Source of Water: It has already been mentioned that Ananthapur is a draught prone area having anaverage annual rainfall of about 500 mm. Here loss of water due to evaporation and percolationthrough pores is also very high. Hence, availability of water is a real problem in Ananthapur.b. Surface water: The rivers viz. the Pandameru and the Tadakleru, two local streams passing throughthe northern and southern side of the town, practically do not have any surface flow except duringthe rainy season. The Tungabhadra Dam High Level South Canal popularly known as HLC, which ispassing through the town, is the main source of surface water for Ananthapur. The canal supplieswater for a period of about 5 months (August to December) in a year on regular basis. There is aSummer Storage Tank of designed capacity 1320 ML to supply water during canal closure period.However, the effective capacity of SS Tank has been reduced to 895 ML and is not sufficient to meetthe demand of water for the entire canal closure period. Hence, water is released periodically to HLCto meet the shortage of drinking water in the town. There is no other surface water source nearAnanthapur which may be as sustainable source of water for the town. The only dependable andreliable surface water source in this region is PABR. There is an allocation of Five (5) TMC of waterto this reservoir from Tungabhadra Dam. Out of this Five (5) TMC of water I&CAD Department ofAndhra Pradesh has allocated one (1) TMC of water for the Ananthapur Municipal Corporation.Hence, the source is sustainable and dependable to meet the present water demand of AnanthapurMunicipal Corporation area. The PABR dam reservoir is located on the river Penna (Latitude 44º 47”and Longitude 77º 18”). It is fed from the perennial river Tungabhadra.c. Surface water Quality. Surface water quality is being tested for PABR water, proposed watersupply source. The results are shown in Table 3.1.5-1. Annexure 2 shows all 23 parameters oftested water along with specified standard and testing methodology. Results show that in all thecases concentrations of measured parameters are well below the permissible limit. Coliform and Ecoli are reported in reservoir. pH is slightly alkaline. Both BOD and COD are below the detectionlimit, which indicates that there is not much oxidizable organic and inorganic components in water.Total Dissolved Solid is also less which is due to low content of dissolved salts of Calcium andMagnesium.14