CLEANING OF RAW WATER TANKS, UNDER GROUNDS SUMPS, OHT AT BML LIMB-I AND LIMB-II AT PATIALA MIL STN UNDER GE (N) PATIALA

Draining out raw water ( 60 Lakh Gallons appx) completely from Open Raw Water Tank capacity 175 Lakh gallons, having size not more than 150 mtrs in length, 150 mtrs in width and 5.5 mtrs in depth by means, depth of the residual water including floating substances approximately up to the height of 40 CM from the bottom of the sump from the tank by taking out water with Non clog Pumpset / Diesel Engine coupled with pumpset from Raw water tank to open sludge water sump at distance not more than 500 mtr from the Raw water tank complete including necessary minor repair all as specified and directed by Engineer-in-charge. Notes:- (a) The Raw water tank shall be disconnected initially by shutting down Gear box type sluice valves i.e Inlet / Outlet and interconnected valves of Raw water tanks of size upto 1000mm bore. (b) Non clog pumpset/ Diesel Engine coupled with pumpset of suitable capacity including other required T&P items for taking out muddy water from the Raw water tank shall be provided by the contractor and the cost thereof shall be included in the unit rate quoted.

Taking out silt including other waste particles from Raw water tank (02 Nos) capacity 175 Lakh Gallons having size not more than 150 mtrs in length, 150mtrs in width and 5.5mtrs in depth, 30 cm average height of silt from ground level, by means of any other suitable T&P, removal of silt at a distance not less than 500 mtrs from Raw water tank and then cleaning and washing of inner walls and floor of Raw water tank including removing sticky particles by scraping with sand paper till all the surfaces are totally cleaned, washing the surface using solution of Hydrogen per -oxide in the ratio of 1:100 to entire satisfaction of Engr-in-Charge complete all as specified and directed. Notes:- (i) T&P required for taking out silt and cleaning of Raw water tank shall be arranged by the contractor and cost thereof shall be included in the unit rate quoted. (ii) The surface of walls / floor of Raw water tank shall not be damaged during taking out muddy water/ silt from Raw water tank and the making good the disturbed surface shall be carried out by the contractor without any extra cost.

Labour only for cleaning of Intake Chamber having two portions near main BML canal Appx size – 125 sq mtr and applying one coat of white washing to the inner walls of chamber after cleaning complete all as specified and directed .

Labour only for cleaning of Underground Raw Water Sump of capacity 1.5 Lakh Gal at main BML Installation complete all as specified and directed .

Labour only for cleaning of Underground Chlorine Contact Chamber at main BML installation Appx size – 19.5 mtrs length, 6 mtrs wide and 4.5 mtrs in depth complete all as specified and directed .

Labour only for cleaning of Underground Clear Water Sumps of capacity 4.25 Lakh Gal at main BML installation complete all as specified and directed .

Labour only for cleaning of Underground Sludge Water Sump connected with Recycle water sump double compartment of capacity 1.5 Lakh Gal at main BML installation complete, Sludge waste to be disposed outside Defence land all as specified and directed by Engineer in Charge.

Cleaning and disinfection of entire internal surfaces of underground sump capacity 2.0 Lakh Gallon single or double compartments at New & Old Cantt Patiala Military Station (Limb II & Limb III) including all required T & P and Manpower comprising the following process:- Notes for Srl No. 3 to 8:- (a) Draining out water and evacuation of internal surfaces including floor and ceiling with mechanical pressure machine by applying solution of H2 02 (Hydrogen per Oxide) in the ratio of 1: 100 ( 1 LTR of H202 and 100 Ltr of water). (b) Dislodging the dirt layers with high-speed water jet including scrapping the surface with wire brush and draining out the sludge water. (c) Cleaning the internal surfaces complete with Mechanical Scrubber and washing the surfaces with high-pressure water jet (d) Filling the chambers with clear water and washing out prior to refill after complete process. (e) Writing date of cleaning in bold letters with paint as directed and specified by Engr-in-charge.

Cleaning the entire area within the fencing/ boundary wall of BML installation which includes cutting of bushes /shrubs / unwanted Grass in the periphery and surrounding of complete installation, cleaning of surrounding area of Raw water sump (02 Nos) upto 9 mtrs (including cleaning Brick lining) from fencing of tank, surrounding area of Flocculators, Chlorine chamber, Sludge pumping installation, O/H reservoir, Chlorine room, Filteration installation, Gen rooms, drains as well as Clear water sumps, Aerator appx size 9.5 mtrs dia (including scrubbing & cleaning of Tiles fixed on surface of three steps inside Aerator connected with open channels with solution) connected with Clariflocculators removing unwanted grass of the complete installation, including sweeping of whole area and disposal of all the removed material after cutting/ cleaning all as directed. The plinths around the complete buildings at installation is to be maintained free from any type of grass and cleaning complete. (Rate quoted will be composite cleaning of area by deploying of Man power and all type of T&P).

Cleaning the entire area within the fencing/ boundary wall of Limb II & III installation which includes cutting of bushes /shrubs / unwanted Grass in the periphery and surrounding of complete installation, drains as well as Clear water sumps, removing unwanted grass of the complete installation, including cleaning and sweeping of whole area and disposal of all the removed material after cutting/ cleaning all as directed. The plinths around the complete buildings at installation is to be maintained free from any type of grass and cleaning complete. (Rate quoted will be composite cleaning of area by deploying of Man power and all type of T&P)