Tender For Biannual Operation And Maintenance Of 75 Kld Water Treatment Plant And Treated Water Supply Distribution System At Anuvihar Colony Of Barc Visakhapatnam,Located Near At Chutapuram” For The Period 2026-28.; 1 Operation & Annual maintanance of 75KLD (15m3/hr flow) water treatment plant at Anuvihar colony 2 Annualmaintananceofwtp at flow rate of15 m3/hrcapacity. Plant consists ofmajor equipment mentioned below.Scope of this item includes proper runinng of plant, carryout maintanance and repair of equipment to keep the plant in running condition. For operation and runningof this WTP plant, bill shall be paid from item/Sl no. 2 of this BOQ, supply of treatment chemicals shall be paid from item/Sl. no. 3 of this BOQ. For major spare parts to be installed (if requires) forpumps shall be paid through item/Sl no.4 of this BOQ. Any spare partsor items to keep the water treatment plant (WTP) in running condition and which are not covered in BOQ 4shall be borne by Contractor only. No seperate payment will be made in this regard. Any rapairs for WTP Electromechanical equipment like welding in piping, filter tanks, clarifier, flash mixer, repair of pump & motors, flowmeters, interconnection piping, dosing pumps, various valves, consumables like grease/oils, change of filter media, lamella clarifier media etc to keep the plant in running condition and to produce the required qualitywateroutput which areall is in the scope of this item only and no extra payment will be made in this regard.Schematic diagram of WTP layout is attached as Annexure -A.Specification and quantityof major WTP equipment which needs to be considered for this AMC is attached as Annexure - B.Expected raw water (surface river water obtained from yeleru canal and supplied by M/s APIIC) & required treated water quality is attached as Annexure - C. Major wtp equipment: Raw water pumps.Filter feed water pumps.Flash mixer, Lamella clarifier, Intermediate tank, Multi grade Sand & Activated Carbon filters, dosing pumps, Flow meters, interconnection piping, various valves (Butterfly, ball, NRVs), MCCP panel, power cables, instrumentation cables etc. 3 Work of operation & running ofWTP in shift. one shift consists of 8 hours of continuous duty. This may include round the clock operation. Minimum operating staff required for each shift operation shall include Supervisor (Degree in B.sc,/ Diploma in Mechanical/chemical) with two years min experience, and Technician (Electrical/Mechanical) (ITI) with two years minimum experience. Scope of work for this item includes but not limited to the conducting jar testing, Dosing estimation, mixing of chemicals,operation ofplant & itsequipment,checking water quality, maintaining log records, keeping the plant in running condition, any other work as directed by dept supervisor regarding WTP operation. 4 Supply of chemicals for running of water treatment plant. All chemicals shall be food graded only. Food graded test certificatefrom chemical supplier shall be submitted. 5 Supply of coagulantfor raw water treatment 6 Supply of Flocculant for raw water treatment 7 Supply of sodium hypo chlorine for disinfection 8 Pumps spare parts:Raw water Pump: Pump Make: Johnson SPX flowModel No: KGEC, 12B-5Motor make:Bharat BijileePump motor capacity: 3HP 9 Impeller (CI) 10 Shaft (SS) 11 Gasket set 12 Flap Valve 13 Mechanical Seal 14 Oil seal 15 pump Bearing set 16 Suction cover 17 Motor bearing set 18 Filter Feed water Pump:Pump Make & Model No.: Johnson SPX flow, KGEC 16-6.Motor Make: Bharat BijileePump motor capacity: 7.5Hp 19 Impeller (CI) 20 Shaft (SS) 21 Gasket set 22 Flap Valve 23 Mechanical Seal 24 Oil seal 25 pump Bearing set 26 Suction cover 27 Motor bearing set 28 Supply, Installation & Testing of Dosing/metering pump of the following specification. This item is proposed to be executed if any new additional dosing system is proposed by Contractor as standby to existing dosing system.Flow: Min 12 LPH at the Injection pressure of min 2 Kg/Cm2.Type: Electro magnetically actuated diaphragm type.Power Supply to drive unit: 230V, 50Hz, Single phase power supply.This item includes dosing/metering pump, suctionfoot valve, injection valve, suction & delivery side tubing (total length of tubing shall be minimum 5 meter which includes both suction & delivery side piping), antisyphon valve, standard length cable comes along with OEM of pump, syntex tank of apprx size not less than 200Ltr for dosing chemical preparation, back pressure valve, standard nuts and bolts and any otheraccessories required for installation and proper function of dosing pump. 29 Cleaning of RCC tanks which are used for storage ofRaw and treated waters in the WTP premises.Each RCC water tank size is apprx.4.5 x 6.5 x 3.2 meter.Scope of work: Supply ofman power, machinery,tools, safety instruments, cleaning chemicals etc.,forcleaningof RCCwater tanks.Removal of sand, silt, small stones & dislodging of algae etc.,from the water tanks and disposing the same to a distance ofnot more than 50 meter from the tank. Emptying of waste waterfrom the RCC water tanks which will be obtained during cleaning using dewatering pump. After completion of cleaning in all respects,thoroughly disinfecting the tank with bleaching powder as perDepartment Engineer instructions. 30 Testing & Submission ofwater quality reports obtained from NABL certified laboratory for both Raw & treated waters once in every month. Parameters needs to be tested are as follows:Turbidity, PH, Residual chlorine, TDS, Total Hardness, Total alkalanity, Color, odour. 31 Supply installation testing & commissioning of Turbidity meter system to check turbidity of water quality.Specification is as follows: Calibration:Automatic, Range 0-1000 NTU, Resolution: 0.01,0.1,1 for turbidity in various ranges between 0-1000NTU, Turbidity accuracy : +/- 2%,,calibration cuvvet kits, empty cuvvets, power supply adapter, cables, charging battery, carrying case, manuals etc all other accessories required for proper functioning of turbidity meter is in the scope of this item. Warranty: one year minimum. Make: Thermofisher scientific, Hach, or equvelent. 32 Operation & Annual maintanance of treated water supply distribution system at Anuvihar colony 33 Annual maintanance of treated water supply distribution system consists of following equipment:Treated water distribution system chiefly comprises of 2 Nos ofhorizantal base mounted flexible coupled centrifugal pumps (15HP) , and one (01) no ofsubmerssible pump (3HP), piping network connecting from Treated water storage tanks to various housing quarters located at various locations of Anuvihar colony,isolation valves(GM gate) , butterfly valves, float valves installed at roof mounted over head tanks of quarters, air release valves etc. Drawing of Treated water distribution system is attached as Annexure-D. Major piping and valves quantity needs to be considered for this AMC is attached as Annexure -E.Work nature: Treated water obtained from WTP plant shall be stored in the existing treated water storage tanks located near WTP premises. This stored treated watershall be supplied to various housingquarters of anuvihar colonyusingtreated water distribution pumps installed at WTP premisesvia distribution piping (GI/MS pipe) network which is mostly under ground carbon steel piping.As per water supply requirement valves needs to be adjusted daily. For this water distribution AMC work, payment shall be made through individual items as mentioned below.O&M of pumps shall be paid through item/Sl.no 11,13.spare parts required for O&M of treated water distribution pumpsshallbe paid through item/Sl. no 12. supply of man power shall be paid thorugh BOQ item 14. For any repair work in existing piping, or in valves of Treated water supply distribution system considered for this AMC work, payment shall be paid through items/ Sl. no. ofBOQ15, 16 & 17 as and when repair requirement arises. For any new piping systems which needs to be extened to the existing system shall be paid through item/Sl. no 18, 19. 34 Maintanance of Treated water distribution pumps of 2Nos along with its motors, isolation valves, NRV, strainer, interconnection (from storage tank to discharge header line) SS piping, pressure gauges, fittings, all other accessories making system operational.Pump Make & Model No.: Johnson SPX flow, CN 32-250.Motor make: Bharat Bhijilee.Pump motor capacity: 15HpMajor spare partsof pumps requiredduring operation & maintanance shallbe paid through item no B2. If any spares parts or consumableswhich are not covered in item B2 will automatically comes under this item and no seperate payment willbe made in this regards. 35 Treated water distribution Pump spare parts: Major Spare parts required to keep treated water distribution pumps(of BOQ itemno B1)in running condition are mentioned below:Pump Make & Model No.: Johnson SPX flow, CN 32-250.Motor make: Bharat Bhijilee. Pump motor capacity: 15Hp 36 Impeller (CI) 37 Shaft (SS) 38 Sleeve (SS) 39 Gasket set 40 Mechanical Seal 41 pump Bearing set 42 Motor bearing set 43 Maintanance ofsubmersible pump (3HP ) of qty 1 No, which is used as a Standby pump for treated water distribution during lean period.Make of submerssible pump: Falcon.Model: VRS series.Body: SS, Capacity: 3Hp.Any spare parts, lubrication oils, consumables etc consumed during operation & maintanance of this pump shall be comes under this item only and no seperate payment will be made. Consumables like grease etc needs to be applied and pumps needs to be maintained as per OEMs reccomendation. 44 Work of operation of treated water distribustion system in shift. One shift consists of 8 hoursof continuous duty. This may include round the clock operation.Minimum operating staff required for each shift operation shall include one no ofTechnician (plumer/fitter) (ITI) with two years minimum experience.Scope of this work includes operation of Treated water distribution pumps mentioned in item 11 & 13 of this BOQ, operation of valves to supply treated water to colony quarters as per water demand, maintaining of log books, any other work as directed by department supervisor regarding water supply distribution system. 45 Leakage arrestation work in GI/MScarbon steel pipe work through welding,cutting, plumbing etc including supply of man power, tools, tackles, safety instruments, consumables, required fittings to complete the work as per direction of EIC. This item does nt includes under ground excavation, supply of pipe material for which seperete item is available in this BOQ. 46 GI/MS pipe of upto50mm NB, for one leakage joint arrestation. 47 GI/MS pipe offrom 60-80mm NB, for one leakage joint arrestation. 48 GI/MSpipe of 100 mm NB, for one leakage joint arrestation. 49 GI/MSpipe of 200 mm NB, for one leakage joint arrestation. 50 Under ground earth work excavation to locate pipeline during leakage arrestation. This work includes under ground excavation by using manual or mechanical means in all types of soils other than hard rock including supply of man power, tools, tackles etc as per direction of department supervisor. 51 Repair, rectification, if requires complete replacement of existing following valves (Gate,butterfly, ball, float, air release) to bring itemsin working condition, making leak proof and also to keep the existingwater supply distribution system network operational in colony.This item includes supply of man power for repair, tools, tackles,spare parts and also if requires complete change of valve. 52 200mm NB Dia. Gate valve. Body is CI/DI, resilent seated. 53 200mm Dia. Butterflyvalve. Body is CI/DI, resilent seated. 54 100mm NB butterfly valve. CI/DI body, resilient seated. 55 32-4050mm NB GM gate valve /Butterfly valve 56 50mm-65mm NB butterfly valve /Gate valve 57 50mm NB Air release valve. CI/DI body. 58 80mm NB Air release valve. CI/DI body. 59 40mm to 65 mm NB, SS ball valves 60 Copper alloy float valves from 25mm upto 50mm NB,installed in over head tanks of residential quarters 61 SIT & C of following new pipe including necessary fittings, accessoriesincluding supply of manpower, consumables as required for complete installation of valve as an extension to the existing water supply distribution system whenever new requirement araises as per direction of EIC. 62 GI pipe 25mm NB, heavy duty thickness 63 GI pipe 40/32mm NB, heavy duty thickness 64 GI pipe 50mm NB, heavy duty thickness 65 GI pipe 80 mm NB, heavy duty thickness 66 GI pipe 100mm NB, heavy duty thickness 67 SIT & C of following new valves including necessary fittings, accessoriesincluding supply of manpower, consumables as required for complete installation of valve as an extension to the existing water supply distribution system whenever new requirement araises as per direction of EIC. 68 25mm NB GM Gate valve/ Butterfly Valve 69 50mm NB GM Gate valve/ Butterfly Valve 70 25mm NB Copper alloy float valve at roof mounted over head tank 71 50mm NB Copper alloy float valve at roof mounted over head tank 72 25mm NB Air release valve.Body: CI/DI 73 50mm NB Air release valveBody: CI/DI 74 Supply & application of grease for various valves as per direction of EIC 75 Painting: Two coats of primer (redoxide or any suitable) followed by two coats of enamel (or coal tar/epoxy) painting for various equipment of treated water supply distribution system including piping, valves as per direction ofEIC.
