REPAIRS CLEANING OF UG OH SWT TANKS OF WATER SUPPLY AND MAINTENANCE TO FILTERS WATER LEVEL INDICATORS AND CONNECTED WORKS AT INS RAJALI ARAKKONAM

Amount

Taking down the inspection cover from pressure filtation plant and taking out existing filter media (Pebbles/sand) of various sizes from the pressure feed filtration plant (Made up of MS) and removal to a distance n.exc 20M and dopositing where directed complete all as specified and as directed Note: The rate quoted by the tenderer shall be deemed to include for segregating the filter media (Pebbles/sand) of various size for measurement purposes.

Supply and fill gravel of size 1/4'' to 1/10'' as filter media in the pressure filtationb plant complete all as specified and directed.

Supply and fill granite pebbles of size 1/2'' to 1/4'' as filter media in the pressure filtation plant all as specified and as directed.

Supply and fill granite pebbles of size 3/4'' to 1/2'' as filter media in the pressure filtation plant all as specified and as directed.

Supply and fill granite pebbles of size 1 1/2'' to 1'' as filter media in the pressure filtation plant all as specified and as directed.

Refilling the serviceable media (ie pebbles) of various sizes obtained form item No.5 here-in-before in the pressure filtation plant after cleaning with acid and pure water etc complete all as specified and as directed.

Supply and fill fine sand of size 16x32 as filter media in the pressure filter plant complete all as specified and directed.

Supply and fill coarse sand of size 8x16 as filter media in the pressure filtration plant complete all as specified and dircted. Notes for item No.1 to 8 a) The source of pebbles,coarse and fine aggregate shall be from river bed and as approved by GE. b) Grading and size of filter media shall be tested in the approved laboratory and test results shall be submitted and the rate quoated shall be deemed to include the above provision

Material and labour for preparation of old painted internal steel surfaces of filtration plant of size 2600mm dia and 2300mm length and applying two coats of anti-corrosive bituminous epoxy paint including complete removal of existing treatment by scrapping the surfaces with wire brush, de-scaling etc., complete all as specified and as directed

Material and labour for preparation of old painted external steel surfaces of filtration plant of size 2600mm dia and 2300mm length and applying a coat of synthetic enamel paint as per the existing colour and scheme including scrapping out of old fadded paint and writing the plant capacity,SM/MES.No,etc., complete all as specified and as directed.

Preparation of old surfaces and applying two coats of weather proof exterior grade acrylic emulsion paint of tint as per existing patern over a coat of primer on wall of RCC OHTs for upto 30 m height including necessary scafolding and safety measures, staging etc

Preparation of old surfaces and applying two coats of weather proof exterior grade acrylic emulsion paint of tint as per existing patern over a coat of primer on wall of RCC OHTs for upto 19 m height including necessary scafolding and safety measures, staging etc

Material and labour for taking down existing damaged RCC cover from UG sump and replace with new Precast RCC 1:2:4 type B-1 (using 20mm graded stone aggregate) as in coverslab as required for water sump set in CM 1:6 complete all as specified and directed.

Supply and fixing for TMT bar not less than 10mm dia and over, cut to length, bent to shape require, including cranking, bending spirally for hooping for slab and including binding with MS wire not less than 0.9mm dia or securing with clips complete all as specified and directed.

Material and labour for cleaning the over head reservoirs of 454000 ltrs capacity 24.3m height at NORA by de-watering the tank, removing the silt/ sludge deposited at bottom, walls complete, cleaning the sump internally using high pressure water jets upto 120 bar pressure then by vacuum cleaning followed by anti-bacterial (non toxic) spray and UV radiation for suspended bacteria killing complete all as specified and as directed.

All as per item No. 15 here-in-before but capacity of 454000 ltrs capacity at sailors in living area.

All as per item No. 15 here-in-before but capacity of 227000 ltrs 18.3m height capacity at MT area.

All as per item No. 15 here-in-before but capacity of 227000 ltrs capacity at MRS area.

All as per item No. 15 here-in-before but capacity of 100000 ltrs capacity at Tirupar Kadal P/H

All as per item No. 15 here-in-before but capacity of 100000 ltrs capacity at Tirumalpur P/H

Material and labour for cleaning the underground sumps of following capacities by de-watering the sump using submersible pumps, removing the silt/ sludge deposited at bottom, walls complete, cleaning the sump internally using high pressure water jet upto 120 bar pressure then by vacuum cleaning followed by anti-bacterial (non toxic) spray and UV radiation for suspended bacteria killing complete all as specified and as directed.

Underground sump of 1021500 Ltrs capacity (MRS) including white washing with one coat of lime to the internal surface and external surface of the sump.

Static water tank of capacity upto1 lakh ltrs including white washing with one coat of lime to the internal surface of the tank and remove green vegitatation around the tank upto 1m radius including painting with two coats of synthetic enamel paint to MS grill guard of static tank over a coat of red oxide complete all as specified and as directed. Location: Near S/Stn C, NORA S/Stn , WTS, Near BSF hanger ATH, Rajalika, Magazine area-2 Nos, ATC, P8I Maint Hanger, 4 PEB Hangar-2 Nos, New Magazine S/Stn and NAD area-02 nos.

Taking down existing unserviceable sluice valve of following sizes from the existing position and supply and fixing sluice valve CI body class PN 1.6 heavy duty flanged ends cast iron wheel with SS spindle conforming to IS short body including replacement of corroded nuts ,bolt, washers and gasket all as specified and as directed.

(a) 100mm dia

(b) 150mm dia

(c) 200mm dia

(d) 300mm dia

Supply,fixing and testing of LED display Water level indicator of 12 stages wired wall mounted installation with a detection range not less than 400 feet with operating voltage between 210-270 volts including weather/shock proof electric wiring, wire/rope and connected items etc complete including taking down and removing old unserviceable indicator all as specified and directed.

KRISHNA ENTERPRISES

SHRI S SANTHAKUMAR

SRI VIGNESH BUILDERS

C SRINIVASAN

RD ENTERPRISES

SUSII CONSTRUCTIONS

NLK Construction