Design, Engineering, Procurement and Construction including Hydraulic Testing, Satisfactory trials and commissioning of 0.75 MLD Capacity Sewage Treatment Plant (STP) based on Sequential Batch Reactor (SBR)/MBR or any equivalent Technology followed b

Collection System

Raw Sewage Collection Well with Pumping Arrangements: Design, engineering, supply, construction & commissioning of Raw Sewage Collection Well with screen interconnecting with minimum HRT of 2 hours T arrangements from existing pumping main and Pumping Arrangements from collection well to inlet chamber, necessary pipes and specials, chain pully arrangements, RCC walk ways with ladder and handrail of suitable MoC as directed with all connected civil, mechanical, electrical and instrumentation works for real time monitoring (OCEMS), control and data acquisition on quality and quantity including necessary standby units etc. complete as per required standards and specifications.

Inlet Units

Inlet Chamber: 'Design, engineering, supply, construction & commissioning of RCC (M-30) Inlet Chamber designed for the peak flow including necessary excavation in all types of strata including walkway all around the periphery. Each compartment will have CI gates or ButterFly Valves with extension rod, head stock, operating wheels, GI/UPVC pipe railing, etc. The work includes providing and making necessary arrangements to connect the flow to screen chamber by approach channel as directed and as per specifications.

Screen Chamber: Design, engineering, supply, construction & commissioning of Coarse and Fine Screen Chamber with S.S Screen channels including Manual / Mechanical screen capable of screening less than 3 mm size particle and above with S.S, Conveyor belt arrangements, MS / Concrete walkway slab with ladder and handrail of suitable MoC as directed, S.S. rag disposal trays, necessary gate valve arrangements at the outlets, with all connected civil, mechanical, electrical & instrumentation works for real-time monitoring, control and data acquisition on quality and quantity including necessary standby units etc. complete as per required standards and specifications.

Grit Removal Detritor / Oil Skimmer: Design, engineering, supply, construction & commissioning of continuous grit removal type Detritus Tank, mechanically operated in RCC (M-30) capable of removing 100% of 0.2 mm size particle and above, having specific gravity 2.30, designed for one peak 2 DWF with suitable arrangement of separation of grit from putrescible solids. Inlet and outlet channels of required sizes as may be required to connect the flow to connecting unit etc. complete including hydraulic testing for watertightness of structure having minimum FB of 0.3 m, washout arrangement to grit chamber and platform 1 m wide RCC walkway with GI pipe handling shall be provided. A pit for collecting grit conveyed by conveyor shall be provided. It should be suitable to handle the grit for carting. All arrangements shall be as detailed specifications and as directed by Engineer- In- Charge.

Secondary Treatment process Membrane Bio Reactor: Design, engineering, supply, construction & commissioning Membrane Bio Reactor in RCC (M-30)/MS tank with epoxy coating, Aeration Tank and MBR Tank for biological removal of BOD along with nitrification, denitrification, Bio-P removal in compartments to handle combine flow of 0.75 MLD incoming flow and recirculation flow as required with RAS pumping arrangements including construction of separate Anoxic Reactor for De-Nitrfication, Aeration Tank & 2 nos MBR Tank compartments and providing 1 m wide clear approach walkways, expansion joints wherever necessary, including foundations, etc as per specifications F/M ratio shall be 0.15, complete with Twin lobe air blowers, fine diffused aeration grid / equipment and FB 0.5 m and SWD as required. DO level in basin to be minimum 2 mg/l complete and all related instruments & automation works. MLSS concentrations shall be 8000-12000 mg/l or more. MLVSS to MLSS ratio to be 0.8. HRT shall be as per OEM recommendation between 6 to 8 hrs and SRT suitable for fully digested sludge. It should have all other related works as per detailed specification.

MBR Treated Water / Permeate tank with chemical dosing arrangement: Design, engineering, supply, construction & commissioning of MBR treated water / permeate tank of RCC Construction with necessary baffle wall with retention time of 60min including necessary alum and hypo dosing tanks, pumps and pipeline arrayments with all connected civil, mechanical, electrical & instrumentation works for real-time monitoring, control and data acquisition on quality and quantity including necessary standby units etc. complete as per required discharge standards and specifications..

Design, engineering, supply, construction & commissioning of Disinfection system by chlorination/UV/Ozonation including pumps and pipeline arrayments with all connected civil, mechanical, electrical & instrumentation works for real-time monitoring, control and data acquisition (OCEMS) on quality and quantity including necessary standby units etc. after necessary approval from the Engineer complete as per required discharge standards and specifications

Sludge Treatment Units

Filter Press: Design, engineering, supply, construction & commissioning of Filter or Screw Press, Polyelectrolyte solution tanks including providing of the required sludge feed pumps, GLS sludge tank, agitators arrangements, filter press dosing systems, solution tanks agitators, pumps, interconnecting pipes, fittings, valves safety equipment, staircase, walkway with SS hand railing, with all connected civil, mechanical, electrical & instrumentation works for real-time monitoring, control and data acquisition on quality and quantity including necessary standby units etc. complete as per required standards and specifications..

Effluent Pumping Main

Discharge Pumping Main: Design, engineering, supply, construction & commissioning of Discharge Pumping Main of HDPE/DI/UPVC with inner Aluminium coating from STP Outlet to Canal for a length of approx.700m upto the discharge arrangements with all connected civil & mechanical works including necessary standby units etc. complete as per required standards and specifications. *length of the pipeline may be executed as per site considitions

MCC Room

Panel Room: Design, engineering, supply, construction & commissioning of Panel Room to house all panels, Breakers, MCCB, with all connected civil, mechanical, electrical& instrumentation works for real-time monitoring, control and data acquisition on quality and quantity including necessary standby units etc. complete as per required standards and specifications.

ElectricalSystem: Design, engineering, supply, construction & commissioning of complete electrical system required for the entire process,Transformers, EB panel, LV Panel, PLC Panel, OCEMS Panel, Capacitor panel, DG panel, including room lighting, fans, Air conditioners, Yard lighting, earth pits, laying of cables & cable trays, with all connected civil, mechanical, electrical & instrumentation works for real-time monitoring, control and data acquisition on quality and quantity including necessary standby units etc. complete as per required standards and specifications.

DG: Design, engineering, supply, construction & commissioning of suitable 100% DG for the total working load of the plant with engine (as per CPCB-2 norms) at 1500RPM under NTP conditions complete with standard Accessories coupled to make standard design alternator mounted on a common iron base frame, suitable rated battery with leads, hospital silencer, fuel tank, Control Panel & set of AVM pads, composite type acoustic enclosure, with all connected civil, mechanical, electrical & instrumentation works for real-time monitoring, control and data acquisition on quality and quantity including necessary standby units etc. complete as per required standards and specifications.

Other Facilities

Admin Cum Laboratory Block: Design, engineering, supply, construction & commissioning Administrative cum laboratory including supply of furniture for office, SCADA control room including providing split AC system & fully equipped laboratory room with lab equipment’s & chemicals to test all inlet, outlet and process monitoring parameters, with all connected civil, mechanical, electrical & instrumentation works for real-time monitoring, control and data acquisition on quality and quantity including necessary standby units etc. complete as per required standards and specifications. ORP: Though the measurement of free chlorine concentration is suggested for the disinfection control, as free chlorine works through oxidation, ORP instrumentation be used to monitor and control its effectiveness.

Road/ Paver block: Design, engineering, supply & construction of Road / Paver block, Pathway, Ladder and handrail of suitable MoC as directed, Yard and Street lighting with all connected civil, mechanical & electrical works including necessary standby units etc. complete as per required standards and specifications.

Valves: Supply, delivery, errection and commissioning of the valves and complete specials required for the entire treatment process, etc

Storm water Drains: Storm water drains as per specification

Fencing: Providing chain link fencing with gate as per specification

Borewell: Provision of water supply arrangements including providing bore well, underground sump and submergible pumps necessary GI pipes, valves, etc complete.

Reusing Pipe: Provision for pump and piping for re-use of a portion of secondary treated water for inside land scapping and washing etc from final treated water tank including all control valves, jets, etc complete

Electrical Works Including Erection,Testing & Commissioning

Instrumentation Works Including Installation, Testing and Commissioning

Soil Testing, Clearing Site: Soil testing, Dismantling exixting structure and removing from site, clearing of site, leveling, getting of temporary power supply and providing temporary construction arrangements etc complete.

Civil Works Including Piping, Erection, Testing & Commissioning

Mechanical Works Including Erection, Testing & Commissioning

Electrical Works Including Erection,Testing & Commissioning

Instrumentation Works Including Installation, Testing and Commissioning

Safety Equipment & Tools: Design, engineering, supply, construction & commissioning of Safety Equipment and Tools like fire extinguishers, fire alarm, fire buckets with stand, shock proof rubber mats, emergency lights, digital multimeter, Spanner, Screw driver, etc. complete as per required standards and specifications.

Civil Works Including Piping, Erection, Testing & Commissioning

Mechanical Works Including Erection, Testing & Commissioning

Electrical Works Including Erection,Testing & Commissioning

Instrumentation Works Including Installation, Testing and Commissioning

Landscaping/ Aesthetic arrangements: Design, engineering, supply & construction of landscapping and other asthetic arrangements with all connected civil & mechanical works including necessary standby units etc. complete as per required standards and specifications.

Civil Works Including Piping, Erection, Testing & Commissioning

Mechanical Works Including Erection, Testing & Commissioning

Electrical Works Including Erection,Testing & Commissioning

Instrumentation Works Including Installation, Testing and Commissioning

Lumpsum quoted price for the DBO Contract including design, engineering, supply, construction, erection, installation, testing, trial run and commissioning etc complete for the proposed 0.75 MLD STP including treated water pumping main and allied works etc. complete.

OPERATION AND MAINTENANCE SUMMARY OF FIXED AND VARIABLE PAYMENTS

1 st Year

Fixed Cost

Man Power

Maintenance of all Civil Structures

All repairs including Spares & Replacement, Oil & Grease and other consumables

Maintenance of Entire plant Housekeeping including office and Lab

Variable Cost

emicals & other Consumables Cost (Except Chlorine)

Other Ch

per day

Fixed Cost

Man Power

Maintenance of all Civil Structures

All repairs including Spares & Replacement, Oil & Grease and other consumables

Maintenance of Entire plant Housekeeping including office and Lab

Variable Cost

emicals & other Consumables Cost (Except Chlorine)

Other Ch

2nd Year

Fixed Cost

Man Power

Maintenance of all Civil Structures

All repairs including Spares & Replacement, Oil & Grease and other consumables

Maintenance of Entire plant Housekeeping including office and Lab

Variable Cost

emicals & other Consumables Cost (Except Chlorine)

Other Ch

3rd Year

Fixed Cost

Man Power

Maintenance of all Civil Structures

All repairs including Spares & Replacement, Oil & Grease and other consumables

Maintenance of Entire plant Housekeeping including office and Lab

Variable Cost

emicals & other Consumables Cost (Except Chlorine)

Other Ch

4th Year

Fixed Cost

Man Power

Maintenance of all Civil Structures

All repairs including Spares & Replacement, Oil & Grease and other consumables

Maintenance of Entire plant Housekeeping including office and Lab

Variable Cost

emicals & other Consumables Cost (Except Chlorine)

Other Ch

5th Year

Fixed Cost

Man Power

Maintenance of all Civil Structures

All repairs including Spares & Replacement, Oil & Grease and other consumables

Maintenance of Entire plant Housekeeping including office and Lab

Variable Cost

emicals & other Consumables Cost (Except Chlorine)

Other Ch

6th Year

Fixed Cost

Man Power

Maintenance of all Civil Structures

All repairs including Spares & Replacement, Oil & Grease and other consumables

Maintenance of Entire plant Housekeeping including office and Lab

Variable Cost

emicals & other Consumables Cost (Except Chlorine)

Other Ch

7th Year

Sub Total (excluding GST)

CHENNAI METROPOLITAN WATER SUPPLY AND SEWERAGE BOARD

CHENNAI- 600 002

INATIONAL COMPETITIVE BIDDING

BID DOCUMENT

Lumpsum quoted price for the O&M Contract of the 0.75 MLD Sewage Treatment Plant for Seven Years including Fixed and Variable Cost

DESIGN, ENGINEERING, PROCUREMENT AND CONSTRUCTION INCLUDING HYDRAULIC TESTING, SATISFACTORY TRIALS AND COMMISSIONING OF 0.75 MLD CAPACITY SEWAGE TREATMENT PLANT (STP) BASED ON SEQUENTIAL BATCH REACTOR (SBR)/MBR OR ANY EQUIVALENT TECHNOLOGY FOLLOWED BY DISINFECTION SYSTEM ETC., COMPLETE AT MANALI NEW TOWN FOR THE PROPOSED CONSTRUCTION OF 1260 EWS TENEMENTS BY TNUHDB INCLUDING OPERATION AND MAINTENANCE FOR 7 YEARS

BID DOCUMENT

VOLUME - IV

SUPERINTENDING ENGINEER (CONTRACTS & MONITORING)

CHENNAI METROPOLITAN WATER SUPPLY & SEWERAGE BOARD

No.1, Pumping Station Road, Chintadripet, Chennai 600 002.

Telephone: 044 – 28451300

E-mail : [email protected]

2. Civil Works

BILL OF QUANTITIES

“Design, Engineering, Procurement and Construction including hydraulic testing, satisfactory trials and commissioning of 0.75 MLD capacity Sewage Treatment Plant (STP) based on Sequential Batch Reactor (SBR) /MBR or any equivalent technology followed by Disinfection system etc., complete at Manali New Town for the proposed construction of 1260 EWS Tenements by TNUHDB including Operation and Maintenance for 7 Years”.

General

The price Schedule shall be read with reference to the Notice Inviting Tender, Instruction to Bidders, Conditions of Contract, Scope of Work and Technical Specifications of the Tender Documents and minutes of pre bid meeting.

Fixed costs will include manpower cost, maintenance of all Civil Structures and the entire plant including Housekeeping as well as all repairs including Spares & Replacement, Oil & Grease etc. Variable costs will include Electrical energy cost and chemicals and consumables costs related to the flow processed per day. Flows indicated in Schedule C are for bid evaluation purposes.

· Civil Works

· Electrical, Mechanical Instrumentation Works

· Performance Run (Within 30days of after trail run)

The items of work included in the Bill of Quantities are Lump Sums (unless otherwise stated) which taken together cover all the requirements of the Contract. The works will not be measured to adjust the Contract Price, although some measurement may be undertaken to estimate progress for monthly valuation

The price schedule given here is broadly for the following works:

Each item in the price Schedule shall be individually priced in ink and the same shall be added up to the Bid Cost. No column in the price Schedule shall be left blank. The price quoted by the Bidder must allow for all works as per the detailed specifications and for all contractual obligations whether separately specified or not.

The rates and prices bid in the priced Bill of Quantities shall, except in so far as it is otherwise provided under the Contract, include all the Constructional equipment, Plant, Labour, supervision, materials, erection, maintenance, insurance, profit, taxes and duties, together with all general risks, liabilities and obligations set out or implied in the Contract. The rates and prices in the price Schedule shall, except in cases separately provided for, be deemed to cover all the contractual obligations under this contract.

Any other item to be executed as per scope of work but not covered in the sub-head under broad break-up of payment should also be specified separately along with price Schedule by the bidder at no additional cost to the Owner. Any other item of works which are required to complete the project successfully may be added by the bidders in the subsequent serial no of BOQ format.

The whole cost of complying with the provisions of the Contract shall be included in the items provided in the Bill of Quantities, and where no items are provided, the cost shall be deemed to be distributed among the rates and prices entered for the related items of Work.

The items in Bill of quantities are split into the components of Civil, Mechanical, Electrical and Instrumentation Works. The cost of items in any of the Bill against which the Contractor has failed to enter a rate or price shall be deemed to be covered by other rates and prices entered in the Bill of Quantities.

General discussions and descriptions of work and materials are not necessarily repeated in its entirety nor summarised in the Bill of Quantities. References to the relevant sections of the contract documentation shall be made before determining the work covered by each items in the prices Bill of Quantities.

6. Running Bills

Cost of the items not specifically mentioned in the Bill of Quantities such as Designs, Drawing, Soil investigation tests, Factory Tests, Temporary site facilities, Transportation, Trial Runs, Commissioning, Defect Liability period, Operation and Maintenance Manual, As Built Drawings etc are deemed to be included in the Contract Price. No claim regarding any of these accounts can be made during the performance of the Contract.

The Civil works shall include all the works indicated on the Drawings and as specified in the Scope of Work and Technical Specifications given in this tender document. Any additional item if required from process point of view and for better performance of the plant shall be considered and included under indication while quoting offer.

All items under Civil works are inclusive of all excavation in any type of strata at required depth, including dewatering of Sub-soil Water for Concreting and other works, refilling the sides of excavation after construction of structure, disposing of surplus soil etc. complete as detailed in the tender documents and as directed by the Engineer in Charge.

1. NAME OF THE wORK:

All items of Piping works for STP/SPS/Pumping Main shall be inclusive of excavation in any type of strata, including supply, laying, jointing and testing of all pipelines, specials, valves, all types of labour, construction of sewer appurtenances and valve chambers, pipe support pedestals complete in all respects as detailed in the tender documents and as directed by Engineer-in-charge.

3. Mechanical, Electrical and Instrumentation works

The scope of work under the contract shall include all the work as specified in the Scope of Work and Technical Specifications given in the tender documents and as necessary.

The scope of work under the contract shall include all the work as specified in the Scope of Work and Technical Specifications given in the tender documents.

· Operation, maintenance & monitoring Works. (7 Years)

- routine and preventive maintenance

- scheduled maintenance

- supply, storage and replacing spares and replacement of items of Plant/pumping station as necessary

- provision of all consumables including Electricity charges

- removal of water, sludge and disposable materials to approved sites

- monitoring, record keeping and reporting

- supply, training and supervision of all operation and maintenance staff

- updating operation and maintenance manuals

- confirmation tests at the end of the operation and maintenance period

- training of Employer/ TNUHDB’s operators

4.Performance Run, Operation, Maintenance & Monitoring Works

5.Cost BreakUp

6.1 Payment breakup given in Price Schedule is for facilitating progressive paym

ent to the contractor. The value stipulated for the unit is for completion of the entire work related to the unit as per detailed specifications and requirements mentioned in the tender document and overall requirement for successful commissioning and operation of the plant in accordance with applicable requirements.

6.2.The Contractor shall, after approval of his detailed designs and drawings, furnish to the Engineer an initial bill of quantities to all major items, to be reviewed and updated periodically with the Engineer and will be used for assessment of percentage progress of the component at any stage. For interim payments, measurements jointly taken by both the parties in the form and method approved by the Engineer will be used.

- routine maintenance of roads and storm water drains

Payment under O&M is to cover all costs of operating and maintaining the Sewage Pumping Station and Sewage Treatment Works like

The contractor shall submit the running bills to the Engineer in charge at the rate of one (1) RA bill per month during construction as well as during operation and maintenance.

DBO works of the Sewage Treatment Plant and Sewage Pumping Station being a lump sum contract, the payments through RA Bills will be made to the contractor on the basis of stage wise break-up of payment. Percentage break up considered for individual units shall be based on the approval of the Engineer after the award of the Contract.

Payment for operation and maintenance will be regulated by fixed and variable costs as per actuals or as approved by CMWSSB at the start of the maintenance period.

6.4. Disputes on interim payments shall be collectively resolved by the Contractor and Engineer, however Engineer’s decision is final and binding on both the parties.

Total Land area required as per the Proposed design (to this effect, the bidder should enclose the scaled layout drawing of the Plant along with this Price bid)…………………………….square metre.

Unit fuel requirement in lieu of electricity for Treatment of Raw sewage

1st year

2nd year

3rd year

4th year

5th year

6th year

7th year

6.4. Disputes on interim payments shall be collectively resolved by the Contractor and Engineer, however Engineer’s decision is final and binding on both the parties.

Total Land area required as per the Proposed design (to this effect, the bidder should enclose the scaled layout drawing of the Plant along with this Price bid)…………………………….square metre.

6.3. For various items of work, mentioned in Schedule B, the Contractor shall give the break-up percentage after the award of Contract but before the preparation of interim bills and get it approved by the Engineer.