NIT No. 28, Item No. 01 (2025-26)

Flushing of 17 Nos. UGRs of Various LT BPS under Tughlakabad Constituency AC-52 given below: - (1) A-Block BPS (Old) Harkesh Nagar (2) I-Block BPS Harkesh Nagar (3) H-Block BPS Harkesh Nagar (4) A-Block BPS (New) Harkesh Nagar (5) M.B. Road BPS Tughlakabad Village (6) S-Block BPS Okhla Phase-II (7) Indra Kalyan Vihar BPS Okhla Phase-I (8) Chungi No. 2 BPS Lal Kuan (9) Panchmukhi BPS (10) HR-Block BPS Pul Prahladpur (11) ESI BPS Tekhand (12) Pocket-8 BPS Kalkaji Extension (13) Pocket-12 BPS Kalkaji Extension (14) Pocket-14 BPS Kalkaji Extension (15) LIG Flats/ Janta Flats BPS Pul Prahaldpur (16) Churiya Mohalla Tekhand (17) MIG Flats/ Southend Apartment Pul Prahladpur - Cleaning of underground sump, Over Head R.C.C. Tank (independent staging) including disposal of slit and rubbish, all as per direction of Engineer-in-Charge. The cleaning shall consist following operations :- (i) Tank shall be emptied of water by pumping & bottom shall be Cleaned of silt and other deposits. (ii) Entire surface area of the sump shall then scrubbed thoroughly With wire brush etc. and pressure washed with water. (iii) Chlorination of RCC internal surface by liquid chlorine. (iv) The treated surface shall be dried using air jetting and all loose Particles shall be removal from the surface. (v) Finally the surface shall be treated with ultraviolet radiation etc. as per direction of Engineer-in-Charge. (DSR-2021/ Item no-14.78).