West Bengal Agro Industries Corporation Limited Tender

Construction ot 3 m X 3 nm X 0.3 m platform around Arsenic treatment Units and MS Supporting structure including Fencing and Gate with locking arrangement all complete as per departmental drawing.

Construction of Surface Drain about 15 m length and 24 numbers of Soak Pit of 900 mm dia, and 775 mm ovrall depth including 75 mm dia. UPVC drain pipe 5 m long as per drawing no. P&DD- [V/292/12-14) and as per direction of the EIC. NOTE: Deduction RS. 850.00has to be made for each m of less length of drain than 15 m).

3000 Lit Raw water tank and 2000 Lit treated water tank.

Suppying, installation, commissioning and trial run (for 3 months) of Water Treatment unit for removal of Iron and Arsenic below permiissible limit as per IS: 10500- 2012 including supply of all required media (vessels design for latest IS codes with minimum 3 mm thick), Food grade epoxy Coating inside, ousitde Painting with best quality synthetic pipeline (medium duty), Valves, 3 bib cocks, fitted after each Treatment unit to collect water sample for testing, meters and making arrangement of connection with existing pipeline as per specification and drawing and direction of the EIC. Quantity volume of all media are mentioned in the depeartmental drawing and to be followed strictly. Treatment unit size: 1. Oxidation chamber: 350 mm dia X 1200 mn depth (1 no.) 2. Pre Filtration unit 350 mm dia x 1200 mm depth (1 no.) 3. Arsenic trentment unit: 350 mm dia X 1200 mm depth + 250 mm dia X 1200 mm depth .4. Backwash chamber: 500 mm dia X 1200 mm depth (1 no) 5. UV Treatment unit of adequate capacity. Adsorption capacity of Arsenic media should not be less than 45g Arsenic per Kg of Arsenic Media (dry weight) and must have certificate from CSIR/III or other Govermment reputable Instițutions. Imported media must have NSF certification in addition to the above ceitificate. or oher Details as per ANNEXURE I/A)

Construction of community tank ( 1000 lit capacity PVC tank with locking arrangement ) rested on support slab with 4 numbers bibcocks to collect water, Upto a distance of 50 m from the treated water storage tank including cost of supplying and laying of 50 m 25 mm dia PVC pipe as per departmental drawing.( Deduction @ Rs. 191.00 has to be made for each m of less length of pipeline than 50 m).Probable numbers are given The Working division may change the number of CT as per site condition.

Construction Soakpit for management of waste water from street stand post/ community tanks. Probable numbers are given. The working division may change the number depending on the numbers of CTs and SSPs as per site condition.

Construction of street stand post with platform upto a distance of 50 m from the treated water storage tank including cost of supplying and laying of 50 m 25 mm dia PVC pipe as per departmental drawing. (Deduction @ Rs.191.00 has to be made for each m of less length of pipeline than 50 m).Probable numbers are given. The working division may change the nunber of SSP as per site condition.

Operation and maintenance of entire installations for 5 years (except day to day operation) which includes: a) Cleaning of site, checking of valves and pipes, checking of electrical connections, cleaning solar panel etc, Twice in a month; 6) Replacoment of daniaged Valves, Bib cocks and any other parts of all units as and when necessary; c) Repar/ replacement of pumping machinery i/c controller PV Panel, wiring, Switches etc as and when necessary; d) Paintng of M.S. structure and all painted surface at the and of each year.

Complete overhauling of Oxidation Vessel, Pre-Filter Vessel and Back-wash Vessel as and when required by engagement of labour & equipments (the work to be executed on written permission from the E-in-C.) which incudes: a) Conplete removal of media from the vessels, breaking of clots and thorough washing and cleaning of all media, b) Placement of all media with 10% fresh new media (lost during washing) including cost and carciaye of the tresh new media.

Complete replacement of Mn02 and Green sand in the Oxidation Vessel and Pre-Filter Vessel as and when required by engagement of labour & equipments (the work to be executed on writen permission from the E-in-C) which includes: Complete removal of old media from the vessels and placement of new media including cost and carriage.

Engagement of labour for daily operation @ Rs. 100.00 per day for 5 (five) years

Sub Total

GST 18%

CESS 1%