COMPREHENSIVE REPAIR /MAINT OF SEWAGE TREATMENT PLANT OF CAPACITY 1 MLD THROUGH OEM, FIRE ALERM SYSTEM, AND CONNECTED ITEMS AND OTHER MISC WORKS

Amount

SCHEDULE A BOQ

M&L for repair/maint of Sand Filter of 1 MLD Sewage Treatment Plant, including replacing of sand & silex by opening top cover of sand filter tank and removing used sand and silex from Sand Filter Tank and washing/ cleaning the tank neatly & properly, and re- filling with new Fine Sand (400 Kgs), Coarse Sand(1500Kgs), Fine Silex(400kg) and Coarse Silex( 400 Kgs) in proper layers as per requirment and closing top cover of the Sand Filter Tank properly and check all connections complete all as directed by Engineer-in-Charge.

Supply and fix MBBR Media in the Bio culture tank of STP Plant. Make : ION Exchange Cat No. MB1622 or its equivant as approved by GE complete all as specified and directed

M&L for repair/maint of Activated Carbon filter of 1 MLD Sewage Treatment Plant, including replacing of Carbon by opening top cover of Carbon filter tank and removing used old Carbon from Carbon filter tank and washing/ cleaning the tank neatly & properly ,and re- filling with new Activated Carbon 900 IV (625 Kg) as per requirment and closing top cover of the Carbon filter tank properly and check all connections complete all as directed by Engineer-in-Charge

Disconnecting electric connection and taking out submersible sewage cutter pump set of capacity 10 HP, 3 Phase, 415 volt from sewage well, transport to the workshop and back for making the serviceable/ repair, dismantle the motor/pump, taking out burnt winding of stator, removal of burnt insulation material from the slot, cleaning the stator slots and M&L for rewinding the stator using super enamelled, submersible grade copper winding wire of same gauge and turns, cleaning and overhauling the pump, tightening impeller complete including replacing the following unserviceable spares, reinstall the pump in original position and testing at full load capacity all as specified and directed by Engr-in-Charge. Make : Kirlosker Location : Old Kalpa & Mehra Note: The replacement of spares will be measured and paid separately as supply only. However, cost of labour for replacement is deemed to be included in the unit rate quoted.

Supply only Coil wound set with class "F" insulation

Supply only Mechanical seal lower

Supply only Mechanical seal upper

Supply only Fastner Set

Supply only "O" Ring & gasket set

Supply only Ball Bearing Set

Supply only Rotor rework with S.P Sleeve with balancing

Supply only Impeller balancing work.

Taking out silt, liquid water sludge in solid/semi solid state / pumping out all mud sewage water from collection sump of size 5 M dia and 8 mtrs depth /Manholes STP tanks of any capacity and size and removing the same using truck mounted honey sucker of capacity minimum 4 cum and to dispose off the sludge to in low lying area at any distance during Sunday and holiday as per requirement, depositing the sludge in low laying area with covering by earth over it and leaving the collection sump clean etc. complete all as specified and directed.

Note for item No 14 :- The tenderer shall take into consideration the following points while quoting rate for this item and the unite quoted rate is deemed to be included for :- (i) Cutting and filling shall be cleared of shrubs, vegetation, grass bush, weed, trees and sapling not exceeding 30 cm in girth, measured at a height of two metre above ground leve around collection sump.

(ii) De-watering by high pressure submersible pump.

(iii) Removal of sludge & sand from inside the tank scrubbing and washing side walls and bottom with bleaching powder solution and making surface free from any fungus, deposited stains using wire brush filling of cavities inside of tank with CM 1:2.

(iv) cleaning of walls , flooring and ceiling with special mechanized high pressure jet machines by high pressure jet pum 80-180 bar pressure , which dislodges the layer of dirt, algae, fungus stuck on its surface usage of scrubbing machines for old stains.

(v) Anti-Bacterial Treatment of Inside of the tank should be treated with specially developed 4 ft long ultraviolet Radiator to kill further floating bacteria/virus in order to make the tank totally clean, bacteria free and safe for storage of drinking water.

(vi) Cleaning and other operations as specified above should be executed by trained workers and technicians.

(vii) Cost of T&P like rods, bamboos, gum shoes and hand gloves etc complete.

(viii) Driver and operator must be in possession of a valid licence and confirm the serviceability of the Truck.

(ix) Removal of blockage of sewage lines up to one metre from collection sump including manholes by using necessary tools/ mechanically tools or manually such as passing rope knots, bamboo kamti and disc of required size including safety measures such as test for gas etc. before flushing the pipe well with water after removal of blockage of pipe complete all as specified and directed.

(x) Tank shall be made available for cleaning for a period of 8 hours only and contractor has to arrange sufficient labour/ T&P to complete the job with the given period only. or otherwise penality shall be imposed @ Rs 500/- per day.

Disconnecting electric connection and taking out submersible sewage cutter pump set of capacity 3 HP, 3 Phase, 415 volt from sewage well, transport to the workshop and back for making the serviceable/ repair, dismantle the motor/pump, taking out burnt winding of stator, removal of burnt insulation material from the slot, cleaning the stator slots and M&L for rewinding the stator using super enamelled, submersible grade coper winding wire of same gauge and turns, cleaning and overhauling the pump, tightening impeller complete including replacing the following unserviceable spares, reinstall the pump in original position and testing at full load capacity all as specified and directed by Engineer-in-Charge. Make : Kirlosker Location : New Kalpa

Supply only Coil wound set with class "F" insulation

Supply only Ball Bearing Set

Supply only "O" Ring & gasket set

Supply only Fastner Set

Supply only Mechanical seal lower

Supply only Mechanical seal upper

Supply only Rotor rework with S.P Sleeve with balancing

Supply only Impeller balancing work.

Servicing/ periodical maintenance of automatic fire alarm and smoke detectors system comprising of conventional fire alarm control panel Smoke detection control panel (to accommodate and sensing signals from wireless smoke detectors), Smoke detector (Photoelectric detection Technology), External wireless siren strobe, wireless repeater to extend the communication range of detectors, IR3 Infra Red flame detector, conventional manual call point with EN 54-11 : 2001 and LPCB, conventional sounder etc by attending fault testing of system, quarterly checking of system including preventive maintenance by replacing small spare parts complete all as specified and directed. Location : Dornier Hangar, Transmitter bldg, BCR bldg, Avionics Lab, HRDF hut, RT cabin, AFNET, 33 Sqn DWR, ATC Exchange, SRE, CCR, 33 Sqn DSS - 13 Nos.

Note for item No 34 :- (a) The contractor shall make AMC contract with the authorised service agency of any make for fire fighting equipments and the repairs/ maintenance shall be carried out through the Authorised service agency only as per instructions recommended by the original manufacturer.

(b) The rate quoted shall be deemed to include for carried out all repairs noticed during the period.

(c) The authorised service agency must attend as and when called for urgent nature of repair of the fire fighting system.

(d) Checking of Alarm signal should not lost when primery power failure untill the alarm signal processed.

(e) Checking of audio amplifiers and tone genrating equipment.

(f) Checking of smoke detector sensibility

(g) Checking of all speaker circuit and loops.

(h) Periodicity of servicing shall be around 03 months or as per manufacturers recommendation.

Comprehensive maintenance/repair of sewage treatment plant of capacity of 1 MLD, the plant comprising of the following assets :- Main collection tank of 2,00,000 ltr capacity, submersible sewage cutter pump of capacity 7.5HP 3 phase 415V-02 No, Air compressor 15HP 3 phase 415V-03 No, treated water monoblock pump set 15HP 3 phase 415V-02 No, treated water submersible type motor 7.5HP 3 phase 415V-02 No, clarifier motor and gear 02HP 3 phase 415V-01 No, Activated carbon filter tank with assembly-01 No, sand filter unit-01 No, settling tank-01 No, Aeration tank-02 No, treated water sump of 5000 ltr capacity-01 No, chlorine tank of 20000 ltr capacity -01 No, secondary clarifier-01 No, sludge drying bed divided into 04 No compartment-01 No, PLC based fully automatic SCADA panel-01 No, motorised valve 100 mm-04 No, LT panel with motor controller-01 No, Recycling pump 5HP,3phase, 415 volts-02 Nos and other civil structures/ chambers, connected equipments, control panel board and cables etc.

(I) The parameters of input and output shall be maintained as under :-

(a) Inlet parameters :- (i) BOD - 250 - 275 mg/ltr (ii) COD - 400 - 550 mg/ltr (iii) TSS - 400 mg/ltr (iv) PH - 7 to 7.5 (v) Fecal Coliform - < 230

(b) Parameters for treated sewage effluent required are as :- (i) BOD - Less than or equal to 10 mg/ ltr (ii) COD - Less than or equal to 150 mg/ ltr (iii) TSS - < 30 mg/ltr (iv) PH - 7 to 8 (v) E coli - Less than or equal to 100 counts/ 100 ml (vi) Residual chlorine - > 0.5mg/ ltr (iv) DO (Dissolved oxygen level - 2 to 4 mg/ ltr in biological system to be maintained)

(II) The following daily maintenance to be carried out :- (a) Bar screen chamber should be cleaned every day to ensure that it’s not choked. (b) Cleaning of Oil & Grease trap. (c) Once in every two hours pumps should be changed between working and standby i.e, Sewage feed pump, blower and Filter feed pump. (d) Maintain disinfection liquid in chlorine dozing tank. (e) MGF and ACF back wash & rinse – Once in every 8 hours simultaneously. (f) Settling tank – Sludge should be disposed from settling tank to sludge drying bed. Once every 8 hours based on MLSS growth. (g) Monitoring and maintenance of log books periodically. (h) Treated water tank – chlorine content should be analysed to ensure that chlorine residual is below 0.2 ppm. (j) MLSS growth – to be checked in aeration tank and equalization tank for proper growth

(III) The following weekly maintenance to be carried out :- STP system is inspected weekly and the following points attended to :- i) Inspect Equalisation Tank/ Entry to system for blockages, plastics etc and remove. ii) Inspect Aerator and note biomass growth, recirculation flow and if any malodour,it is to be treated. iii) Inspect Secondary clarifier (Humus, Tank) and note visual appearance of final effluent and absence (or otherwise) of sludge build up. iv) Check the outlet of the system for blockage etc. v) Check water level in grease trap and if required top up with clean cold water. vi) Grease the bearings (vii) Grease all chain couplings through casing nipples. (viii) Drain out and replace gearbox oil of superior quality (ix) Check holding plate bolts. (x) Check shaft for wear and alignment. (xi) Check bearings for wear and tear and check holding down bolts for tightness. (xii) Check chain coupling and check bolts for tightness.

(IV) The following monthly maintenance to be carried out :- Aerator MUST BE SWITECHED OFF during monthly maintenance procedures. i) Check motor for overheating (by touch) and remove dust etc. from air fins. ii) Grease all bearings through nipples. iii) Grease all chain couplings through casing nipples. iv) Check oil level in gearbox and top up if necessary. v) Check sludge return system from Humus Tank for function. vi) Apply light lubricating oil in small quantities to locks and hinges. vii) Empty and clean out grease trap and fill with clean cold water. viii) Preparing and submitting monthly report on performance of the plant. ix) Sludge disposal outside the MD land atleast once in a month. x) Check and calibrate the instruments including on line monitor and submit report. xi) Check dozing pump and repair/service if necessary.

(V) The following items for routine maintenance shall be provided in plant :- (a) Liquid chlorine with suitable % of chlorine concentration as recommended by manufacturer - 350 ltrs per month (b) Urea - 250 kg per month (c) DAB - 200 kg per month (d) Bio culture - 60 kg per month (e) Cow dung - 500 kg per month (f) Deforming chemical - 30 ltr per month (g) INDI foam 3000 - 60 ltr per month (h) Sercon 203 - 45 ltr per month

(VI) The following items shall be replaced as and when required or as directed by the Engr-in-Charge :- (a) Gaskets, Gland Packing. (b) O rings. (c) Drive belts for air blower and clarifier. (d) Minor electrical accessories viz Indication lamps, fuses etc. (e) Blades (f) Pasting materials (g) Consumables like gloves, safety jackets, helmets, respirators etc (h) Cleaning Chemicals, reagents, Lubricants etc. (j) Contractor shall ensure the filter media particles are upto the level in ACF and MGF. If the quantity level reduces due to loss during filtration and back wash, the same should be toped up during routine maintenance.

(VII) The following tests shall be carried out and maintain the record of treated sewage as per frequency mentioned below :- Ser No Description of parameters Periodicity 1. PH Weekly 2. TSS Weekly 3. BOD Weekly 4. COD Weekly 5. Coliform Daily 6. Residual chlorine Daily 7. Dissolved oxygen Daily

Note for item No 43 :- The unit quoted rate shall be deemed to be inclusive of the following :- (a) The contractor shall visit the site/ plant before quoting the tender. The existing STP plant is MBBR and Original Equipment Manufacture is M/s ION Exchange.

(b) To provide technical support for comprehensive maintenance of STP, the contractor shall enter MOU with the OEMs. No additional payment on this account shall be made to the contractor by the department.

(c) Irrespective of the fact that MOU is signed by contractor with an OEM, contractor will be fully responsible for overall performance and quality of treated water coming out after treatment.

(d) The comprehensive maintenance of STP plant of MBBR will be carried out through authorised rep of the OEM's only under the supervision of contractor and the Engineer-in-Charge. The authorised service agency of OEM shall be responsible to provide all technical support for comprehensive maintenance and shall also be responsible for performance of the plant in terms of outlet parameters mentioned here-in-before.

(e) OEM or their authorised service centre shall employ round the clock minimum one technician having sound knowledge in STP Plant to operate the plant, carryout water analysis checks through approved Laboratory and monitor the performance of the plant on a regular basis, interpret the results and suggest remedial measures in case of major deviations and one person for daily maintenance and cleaning of the plant.

(f) Arrangement for testing of COD, BOD, TSS, Disolved Oxygen, PH values shall be done by the contractor for performance monitoring of parameters on a regular basis.

(g) Service Engineer of OEM shall visit at least once in every month and during break down or when urgently required for the Inspection, servicing repair, rectification of problem and submission of report.

(h) The contractor shall be fully responsible for maintaining the STP in operational condition in consultation with the Engineer-in-Charge.

(j) The cost of supply and replacement of worn out/ defective equipments, each and every type of repair, renewals, regular servicing for efficient and smooth functioning of STP and connected equipment/ items shall be deemed to be included in the unit quoted rates of BOQ.

(k) Repair/ replacement of any equipment/ machinery or part thereof provided under this contract shall be got done only from the manufacturer's authorised dealer/ OEM and record there of shall be maintained.

(l) The contractor has to provide all consumable spares, oil & lubricants for greasing of various equipments, chemicals, consumables for electrical and mechanical plant & machinery.

(m) One month's consumables and required spares shall always be kept at site in advance.

(n) Major repairs/ overhauling etc. shall be notified to the GE immediately on occurrence. The cost of each part/ equipment replaced shall be deemed to be included in the unit rates quoted by the contractor. The unit quoted rate shall be deemed to be included for all materials and labour reqd for comprehensive maintenance including repair/ replacement of any defective component/ equipment to keep the STP in operational condition at all the time.

(o) The entire treated water will be reutilised for arboriculture purpose/ flushing system of toilets. The quantity of treated water shall meet all the criteria given here in before.

(p) The contractor shall carry out various tests on treated sewage and record the same in registers duly signed by contractor's rep, JE and Engineer-in-Charge. The tests shall be carried out from Govt approved laboratories. Contractor shall also be at liberty to establish his own laboratories at site for same after prior approval of GE, however, GE can ask the contractor to get independent tests from Govt lab/ Govt Engineering colleges. The cost of above shall be deemed included in the rates quoted by contractor in BOQ.

(q) The Installation shall be frequently visited by the MES/ Air Force officers. It shall be contractor responsibility for proper upkeep of the area in a presentable state all the time. Surrounding area upto the fencing/ boundary of STP shall be kept clean and cleared of bushes/ shrubs and grass all the time to give a neat and clean appearance of the area.

(r) Registers of record of periodical maintenance carried out date wise for each equipment separately and the same shall be signed by both parties i.e authorise rep of contractor, JE and Engineer-in-Charge.

(s) Repair to system in case of break down (due to normal wear & tear) shall be rectified by the contractor within 24 hrs. In case of failure noticed more than 24 hrs, recovery shall be effected @ Rs. 500/- per hour beyond 24 hrs.

(t) All sludge at suitable frequency (atleast once in a month) shall be disposed off outside the defence land. It will be the responsibility of the Contractor to identify the area suitable for disposal of sludge. The cost of same deemed to be included in the unit quoted rate.

Supply and install in replacement Smoke detector – cover range-50-100 cubic meters(1770-3530 cubic ft) Fully supervised smoke Detector Photoelectric Detection Technology for superior Detection sensitivity, sound and Transmitted Alerts For Smoke, Tamper and Low Battery, works on Power code Protocol, Easy Programming and Enrolling to the control panel, Long Life 9 Volt Alkaline or Lithium Battery- type-3V Cr 123A, operating temperature- -10 ͦC to 50 ͦ C (14 ͦ Fto 122 ͦ F), Simple ceiling , Mount installation with Separate Installation bracket complete all as specified and directed. Model/make:- Ceasefire / Visionic / Apollo / Siemens / Honeywell (Morley). Location : Dornier Hangar, Transmitter bldg, BCR bldg, Avionics Lab, HRDF hut, RT cabin, AFNET, 33 Sqn DWR, ATC Exchange, SRE, CCR, 33 Sqn DSS - 13 Nos.

Supply and install in replacement of Conventional Photoelectric Smoke Detector. Features including removable, High performance chamber, Automatic Sensitivity Window Verification (ASWV)- Drift compensation technology, remote indicator output, wide voltage range (9.5-30 V dc), low profile design with one piece outer cover, single fire LED-360° viewing ,approved by LPCB complete all as specified and directed.. Make:- Ceasefire / Visionic / Apollo / Siemens / Honeywell (Morley). Location : Dornier Hangar, Transmitter bldg, BCR bldg, Avionics Lab, HRDF hut, RT cabin, AFNET, 33 Sqn DWR, ATC Exchange, SRE, CCR, 33 Sqn DSS - 13 Nos.

Supply and install in replacement of convetional manual call point features approved to with EN 54-11:2001, terminals can accomodate upto 2.5mm solid conductor, approved by LPCB complete all as specified and directed. Make. Ceasefire / Visionic / Apollo / Siemens / Honeywell (Morley). Location : Dornier Hangar, Transmitter bldg, BCR bldg, Avionics Lab, HRDF hut, RT cabin, AFNET, 33 Sqn DWR, ATC Exchange, SRE, CCR, 33 Sqn DSS - 13 Nos.

Supply and install in replacement External Wireless Siren Strobe– A Fully Supervised Power Code Outdoor (IP55) Wireless Siren and Strobe Light. Designed For External Installation.Wirefree Connection between Control panel and Siren, Covenient and Rapid No-Mess installation, Separate Fire Alarm Signals, 98db Piezo Siren and High Power Strobe Light , Weather – Resistant IP55 , Two- Way Communication, For Local & Remote Diagnostics, Plug-in Power Supply, NIMH Rechargeable Backup Battery, Transmits Status, Tamper, Low Battery Supervisory and AC Loss Messages to the Control Panel, Tri- State Tamper Switch Identifies Screw Manipulation Removal of Cover or Prying from the Wall complete all as specified and directed. Model/make:-Ceasefire / Visionic / Apollo / Siemens / Honeywell (Morley). Location : Dornier Hangar, Transmitter bldg, BCR bldg, Avionics Lab, HRDF hut, RT cabin, AFNET, 33 Sqn DWR, ATC Exchange, SRE, CCR, 33 Sqn DSS - 13 Nos.

Supply and install in replacement wireless repeater to extend the communication range of detectors by relaying data between receiver and remote wireless transmitters up to 16 auxiliay repeaters can be positioned between the farthest group of receiver transmitter and receiver transmitter, receive type-super-regenrative, modulation tyep-100% ASK, Power Input Ranges- 13 - 20 VDC, or 11 - 16 VAC, 100 mA min.,.Backup Battery- 9 V-style rechargeable Ni-Cd or Ni-MH. Battery Backup Duration (with fully charged 120 mA/h battery and 1:1 standby/transmit ratio): 2 hours (315 and 433.92 MHz units),LED indicator-Lights during transmission,Compliance with Standards-Meets FCC Part 15, MPT 1340 and directive 1999/5/EC, including adapter-AC/DC 12VAC, 1Amp, battery-9 V rechargeable Ni-Cd or Ni-MH ; 300mAh, 5 hours (315 and 433.92 MHz units) complete all as specified and directed.. Model/make:-Ceasefire / Visionic / Apollo / Siemens / Honeywell (Morley). Location : Dornier Hangar, Transmitter bldg, BCR bldg, Avionics Lab, HRDF hut, RT cabin, AFNET, 33 Sqn DWR, ATC Exchange, SRE, CCR, 33 Sqn DSS - 13 Nos.

S&F in replacement maintenance free lead acid sealed battery (SMF) 12 volts 180 AH complete all as specified and as directed. Make : EXIDE model EL plus/ Amaron/ Amar Raja (Powerzone) Note : Old battery shall be deposited in MES store yard.

Supply commissioning and lowering of 3 phase Sewage submersible cutter pump of capacity 3 HP, 415 Volts including lifting up old unserviceable pump duly disconnecting electric and plumbing work complete all as specified and directed

S & F Butterfly valves of 63mm bore including joints with rubber gasket and jointing materials bolts, nuts, washers, including taking out existing unserviceable butterfly valve complete all as specified and directed

Supply and fix in repair Water level sensor (ISI mared) complete all as specified and directed.

Supply and fix of Automatic control panel board suitable for 2 Nos 3HP sewage cutter pump and water level sensor including with suitable starter auto control board voltmeter, ammeter and auto manual control switch including with suitable accessories and fixing arrangement including taking down existing old panel complete all as specified and directed.

Supply and fix in repair of cast iron water check valve of size 2" dia complete all as specified and directed. Make :- kartar or equivalent

Supply and fix in repair of cast iron water check valve 1 1/2" dia complete all as specified and directed. Make:- kartar or equivalent

Supply and fix in repair of Pressure gauge 0 to 6 bar glycering type complete all as specified and directed.

Supply and fix in repair of Pressure gauge 0 to 1 bar glycering type complete all as specified and directed.

Supply and fix in repair of Non return valve 2" dia complete all as specified and directed. Make :- L&T or equivalent

Supply and fix in repair of Non return valve 1 1/2" dia complete all as specified and directed. Make :- L&T or equivalent

Supply and fix in repair of Diaphram valve 25 mm dia complete all as specified and directed.

Supply and fix in repair of Diaphram valve 50 mm dia complete all as specified and directed.

M & L 300 mm dia core cutting through RCC wall with 450 mm width, and provision of 300 mm dia pipe 1 mtr long HDPE pipe including water proof plastering testing and commissioning complete all as specified and directed.

Note for Item No 91 :- HDPE pipe shall be measured and paid seperately under relevent item here in after

Supply & fix HDPE pipe of size 300 mm bore through RCC wall complete all as specified and directed.

Supply and laying copper cable of size 6 sqmm 3 core suitable for submersible pump complete all as specified and directed.

Supply and replace of Addressable type Flame detectors with UV/IR detection capacity (add up cost of module to be a complete set, the type of module shall be relay type module complete all as specified and directed by Engr-in-Charge. Loc-Dornier Hangar

PRIYA ENTERPRISES

SARASWATHI CONSTRUCTION

eurekaenterprises

SARAVANARAJA CONSTRUCTIONS

SAPTHAGIRI CONSTRUCTIONS

VARGHESECHACKO AND CO

p.chinnasamy

KSR AND COMPANY