Sewage Treatment Project At Rawal Dam Construction Essay

A figure of watercourses that fall into Rawal Dam bring immense pollutants to the Dam as they pass through different residential countries including Barri Imam, Qaid-e-Azam University and lodging societies like Banni Gala and domestic fowl farms.

The occupants of Rawalpindi are acquiring contaminated H2O from Rawal Lake, the chief beginning of imbibing H2O for Rawalpindi. Water quality of Rawal Dam is deteriorating with each go throughing twenty-four hours as the H2O samples collected by Rawalpindi Environmental Improvement Project ( REIP ) from the lake revealed that the H2O contained high measure of phosphate and sulfate, which is unsafe for wellness.

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Rawal Lake is vulnerable to H2O pollution and one major job is eutrophication, as lake H2O became unnaturally enriched with foods, doing unnatural works growing.

The Capital Development Authority ( CDA ) has decided to put in a Sewage Treatment Plant ( STP ) at Rawal Dam for handling contaminated H2O of watercourse falling into the dike to supply safe imbibing H2O to occupants of Rawalpindi.

The determination was taken in CDA board meeting presided over by the authorization s president Tariq Mehmood Khan. All the board members including Member Engineering Tahir Shahmshad, Member Finance Saeedur Rahman, Member Estate Asad Munir, Member Environment Mazhar Hussain, Member Planning and Design Tanveer Bukhari, Member disposal SM Farooqi and other senior functionaries attended the meeting.

CDA Board has besides decided that the authorization would build STPs in sectors I-14, I-15, I-16 and I-11.


A multi facetted undertaking is being launched to roll up and handle the sewerage coming from assorted countries including the 1s located on west side of the railroad lines go throughing through the capital district. The topography of country comparatively slopes downwards from the Margalla Hills in the north – all towards the l-series. The sewerage from some of the sectors on east side of the railroad lines is being treated in the Sewage Treatment Plants ( STPs ) located in the Sector 1-9. Whereas the planned sector ( s ) including D-12 E-12 G-12 G-13 G-14 H-12 1-11 1-12 1-14 1-15 and 1-16 etc. and all the other country ( s ) soon non being serviced by the bing STPs have no such proviso, whatsoever, at this point. Besides, the new Sectors and the countries attributable to private lodging societies likely to be developed in hereafter would besides be expected to lend to the sewerage accretion / out flow. Owing to the alone topographic characteristics, it is non executable to transport sewerage from these countries to the bing STPs in Sector I-9.

Furthermore, the dismaying degree of pollution in the natural watercourses and surface reservoirs particularly the Rawal Lake is due to the taint – ensuing from the influx of natural sewerage from proximal home grounds. These include amongst others – the Quaid vitamin E Azam University New Diplomatic Enclave Noorpur Shahan Bhara Kau Malpur Bani Gala and all the unplanned milieus further upriver. The Quaid vitamin E Azam University and its residential settlement and the New Diplomatic Enclave are so the planned vicinities. It may every bit good be noted that, the said countries autumn within the Capital Development Authority ( CDA ) Municipal Limits. However, the staying countries though representing the Islamabad Capital Territory ( ICT ) are non administratively in Municipal bounds of the CDA. The Rawal Lake is soon the chief beginning of H2O supply to the metropolis of Rawalpindi. Hence, there is a demand to command influx of pollutant / natural sewerage into the natural H2O classs on the upstream side further adding into the lake itself. The natural sewerage / pollutants from all these vicinities are discharged into the natural H2O classs – subsequently outflow into the Rawal Lake. These include the Kurang every bit good as the 1s fluxing through Ban Imam Village and Quaid e Azam University.

In position of the above, the Capital Development Authority has decided to carry on elaborate feasibleness surveies to germinate a robust mechanism to command the threat of H2O pollution and the biological intervention thereof. The aim is to hold a set of feasible options in footings of economic systems of graduated table every bit good as conformity to the internationally acceptable environmental criterions.


a ) To ask for outstanding technology consultancy houses while up maintaining the futuristic vision of twelvemonth 2050 – to supply planning every bit good as technology services. These are to run with a strategic attack in transporting out the elaborate feasibleness surveies in the countries within the ICT bounds. The same will cover in general, the sewerage and the Complex underlying issues interalia: ascertainment of the type quantum and the country based aggregation intervention mythology – besides, the restraints therefore encountered in the biological procedure etc.

B ) Based on the feasibleness surveies in a manner frontward the work program initiative on portion of the technology consultancy houses will include yet non limited to the followers:

I. To germinate a whole scope of country based a province of the art, technology solutions for the intervention procedure / disposal of sewerage within the ICT bounds. Furthermore, to invent a solution oriented scheme taking to the followers:

* Optimal handling of the issues relevant to the H2O pollution in the natural watercourses and surface reservoirs within the ICT bounds including the Rawal Lake.

* The design optimisation of the biological procedure every bit good as satiating issues for in arrangement of STPs for all the planned countries within the ICT bounds.

two. The optimization/Implementation of technology solution ( s ) to command the influx of pollutants – including the pick for intervention and the inplacement of intervention installations for theoretical account small towns every bit good as all the industrial countries including Industrial Triangle Kahuta Road ( ITKR ) , in the Capital City.

three. The advisers are required to fix logical, safe / economical design of sewerage intervention works, where executable, with accent upon the country centric inplacement within the ICT limits – harmonizing to the normal acceptable criterion / technology patterns. Furthermore, they are required to guarantee the clear environment and the country is safeguarded against the jeopardies of pollution.

The advisers shall measure environmental impact and transport out socio-economic surveies, place the benefits, determine initial / hereafter O & A ; M costs and duties for the same as a consequence of the Sewage intervention plants.

The object is to command of influx of pollutants in the natural watercourses / low lying countries and the surface reservoirs including the Rawal Lake etc – all within the ICT bounds.

I. Provision of elaborate feasibleness surveies – imagining the planning and technology facets of all physical and environmental factors. The overall arrangement, the optimisation of procedure and the design inside informations of all Civil and E/M installings.

two. The control of influx of the pollutants into the natural watercourses within the ICT bounds.

three. The ascertainment of the types, the quantum of sewerage and the most optimal/feasible sites – in country centric scene, for seting up the intervention installations within the ICT bounds.

four. The elaborate Planning and designing of the constituents – all to include the biological hydraulic/hydrological and structural facets amongst others.

v. Detailed designing every bit good as re-planning the elements of healthful sewerage aggregation system in context with the start up intervention installation.

six. The twelvemonth 2050 is in vision spectrum to supply every bit good as upgrade the sewerage aggregation and its intervention – covering both the planned every bit good as unplanned scenes of the Capital metropolis.

a ) The Advisers are required to transport out the feasibleness of the site ( s ) already earmarked in Sectors D-12, G-13, G-14, 1-15 and 1-16 and other countries representing the ICT Zones I to V for puting up sewerage intervention installations and choose a set of the most executable 1s.

B ) The Advisers are required to transport out feasibleness survey and fix studies and to integrate steps to command the influx of pollutants into the Rawal Lake and the pick for scenes up intervention installations ( if any ) .

degree Celsius ) The elaborate topographic studies and digitized function of the countries for proposed/feasible sites of intervention installations – besides, surface reservoirs and the natural watercourses taking to the same.

vitamin D ) The Advisers are required to transport out nose count study of the undertaking country ( s ) lending towards the accretion of sewerage burden taking to the ascertainment of all input design parametric quantities.

vitamin E ) The Advisers are required to carry on geo-technical probes, biological / chemical / technology trials of stuffs attributable to the sites of the proposed STPs, natural watercourses and surface reservoirs including professional advice on all pertinent facets.

degree Fahrenheit ) Appraisal of optimum land / country demand within the available options for the start up installations.

g ) The Advisers are required to fix and subject environmental clearance studies i.e. Initial Environment Examination ( 1EE ) and Environmental Impact Assessment ( EIA ) and acquire it approved from Pakistan Environmental Protection Agency.

H ) The Advisers are required to transport out the biological and hydrological / hydraulic surveies of all watercourses of course fluxing towards the surface reservoirs including the Rawal Lake and the bing / proposed sites for the sewerage intervention installations.

I ) The Advisers are required to roll up and reexamine available informations and studies of the country ( s ) to be served.

J ) The Advisers are required to carry on preliminary appraisal / design of STPs / the accessory plants and steps to extenuate H2O pollution related issues in all ICT Zones and furnish origin study apriori.

K ) The Advisers are required to transport out concluding Design including readying of elaborate on the job drawings of civil and Electrical/Mechanical plants etc. , landscaping inside informations, BOQ/ Engineering estimations, specifications, readying of PC-I etc. with back uping computations /computation analytical theoretical accounts complete to the satisfaction of the Client – all taking to the induction of Contract action.

cubic decimeter ) Detailed building supervising of plants to be undertaken.

m ) Ways for recovery of the undertaking cost from the donees,

N ) All other plants required to finish this occupation.

O ) Pre-contract services for choice of builders and readying of contract paperss etc.

P )

Time period Time to finish the elaborate feasibleness surveies and

elaborate design for the intervention installations


For planing of the STP plants, the Consultants shall be required to roll up informations on their ain in entireness yet non limited to the followers:

a ) Detailed topographic and census studies of the undertaking countries lending to the flow of Sewage towards the proposed intervention mechanism ( s ) / sites.

B ) Detailed survey of the catchment countries upstream of all surface reservoirs including the Rawal Lake in order to determine the expected design input parametric quantities.

degree Celsius ) Data of H2O ingestion and historic records of sewerage burden features in the country.

vitamin D ) Geo-physical / geological survey and analysis of technology stuffs.

All physical activities undertaken by the Consultant at the undertaking site ( s ) shall be intimated to the Client before manus in the signifier of a comprehensive work plan.


Following the blessing of the all points included in this many-sided undertaking, as delineated in the feasibleness surveies, the Consultant shall set about farther work/ preliminary design of the intervention mechanism and connected plants. The design shall take into consideration the requirements/ limitations and chances. Consultant shall subject different solutions / options for all pertinent phases and the stairss therefore involved. The blessing of the same shall be required apriority steps for employer ‘s consideration and blessing along with unsmooth cost estimations. The preliminary design – origin study will be produced therefore incorporating the followers:

a ) Topographic and nose count study, estimations, sewerage volume, digital function and Geo-technical Investigation etc.

B ) Concept design and justification.

degree Celsius ) Outline design and justification of pick.

vitamin D ) Cost estimations.

vitamin E ) Technical & A ; Financial comparings of considered options and chosen solutions.

degree Fahrenheit ) Construction programme.

g ) Recommendations.


The preferable options are to be agreed to with the Client and detailed design will get down afterwards consequently. The Consultant shall bring forth elaborate design, drawings, measure of measures and stamp paperss etc as approved by the Client and in conformity with the demands stated here under for Tender Action: –

a ) The adviser shall fix elaborate design ( s ) , estimations, PC-I and contract paperss etc, of all services as per range of work and any other papers for transporting out the contract action.

B ) Provision of following installations shall be made in the fiscal command of contractor and PC-I for Client and Consultant:

* Office and residential adjustment with their public-service corporations, furniture & A ; bedclothes, fixtures, AC ‘s trappings, public-service corporation measures, letter paper etc. for both Client & A ; Engineer and their staff including office equipment e.g Computers ( Table & A ; Lap TOP ) , Photo Copier ( s ) , Fax Machine, Walki-talkies, line Telephone and Mobile Telephones, GPS ( handi ) , Vehicles, Messing installations, still and film camera etc..

* Vehicles for Supervisory Consultants and Client with drivers, fuel, insurance, revenue enhancements and repair/ care thereof etc.

* Engineer ‘s Material proving Laboratory with fixtures, equipment, supplying etc. and to keep the same.

* Survey Equipment, Total Station, GPS, Levels and theodolites etc. and to keep the same.

* Utilities Bills & A ; proviso of refreshments for Supervisory Advisers and Client ‘s staff i.e. Project Director and his staff.

degree Celsius ) The design should be synergistic and operable besides sing the readily available technology stuffs including the river crushed rocks, rocks, sand, dirt and stone etc.

vitamin D ) The Consultants shall attest that wastewater discharged after Sewage Treatment Plant ( s ) satisfies the demands of Pakistan National Environmental Quality ( NEQ ) World Health Organization ( WHO ) and the applications ISO criterions.

vitamin E ) The design ( s ) shall provide for the geotechnical probes, topographic & A ; nose count studies of the site ( s ) etc. as touched base with already in this text. The adviser shall prosecute specialised houses after acquiring the blessing from the Client for transporting out these trials at proposed/required sites ( s ) of the undertaking. The cost of geotechnical probe, topographic study work, nose count and research lab proving work etc. shall be borne by the Advisers and they should include it in their fiscal proposal. The Consultant will besides include income revenue enhancement to be deducted at beginning in their fiscal proposal.

degree Fahrenheit ) The design ( s ) shall conform to the latest technology criterions. However, any divergences from these criterions may be discussed with the Client and anterior blessing obtained. Besides, the designs should integrate latest seismal demands as per predominating codifications.

g ) The Consultant shall besides fix elaborate specifications for the executing of the undertaking clearly out-lining the stuffs to be incorporated which are readily available in Pakistani Market whether imported or local and have satisfactory documented public presentation record.

H ) The Consultant shall attest that the designs are economical, estimations ‘ right prepared and in no instance the cost is traveling to change beyond allowable bound of 15 % due to fluctuations in the items/quantities etc. taken in the B.O.Q.

I ) The Consultant shall attest that the designs are structurally sound and sewage burden taken is right in line of the futuristic vision and all design parametric quantities as per applicable codal commissariats / criterions and seismal codification commissariats have besides been incorporated. The duty of safe, right and economical design rests with the Consultant and blessing accorded by the Client shall non alleviate him of any of his duties under the contract.

J ) The Consultant shall indemnify the Client in all respects – against all losingss, which the Client may hold to incur due to any wrong design and due to non-availability of prompt determination on issues raised by the Client/ Contractor ( s ) .

K ) The Consultant shall work out the measures accurately from the building detailed drawings and topographical and census studies / Geo-technical probe and attest their rightness and shall fix B.O.Q / estimates on the footing of latest N.H.A CSR / MES Schedule/ Pak PWD rates where applicable and the current market rates of stuff, labour etc. for non-scheduled points punctually authenticated with elaborate rate analysis and three figure citations.

cubic decimeter ) The Consultant shall attest that all plants, inside informations etc. described in the specifications, drawings and B.O.Q correlate to each other perfectly right and in no instance these paperss shall do complications/variations.

m ) All design / inside informations in the effect of contract paperss etc. , provided by the Consultant shall be the belongings of the Client and no transcript thereof shall be provided by the Consultant to any 3rd party or proviso therefore made in any other undertaking without the anterior written permission of the Client.

N ) The Consultant shall, in association with CDA/concerned sections, study and turn up all services/ public-service corporations go throughing through the proposed site ( s ) and fix safe proposal in audience with the concerned sections for switching and relocating such services in the design being finalized by him. Such surveies and design drawings for re-routing / protection of the services / public-service corporations, where required, shall be prepared in progress and supplied to CDA along with degrees, estimations etc so as to enable CDA to acquire all such services shifted. These services shall associate to Telephone, Electricity, Sui-Gas, Water supply, Sewerage, Drainage, Optical Fiber and Cable T.V. etc.

O ) The Consultant shall keep close affair with the Client and with services governments and other organisations concerned at all phases of the work

P ) The Consultant shall be responsible for obtaining all required blessings and exact estimations for resettlement of services, if any, from the concerned authorities/ Departments.

Q ) Any map/drawing/aerial exposure, images and any other information required for the intent of design shall be obtained by the Consultant from governments concerned at his ain cost. However, the employer shall supply missive of mandate to obtain the same.

R ) Within 15 yearss from the award of the Consultancy work, the Consultant shall set up their to the full synergistic / functional Design office in Islamabad. The Consultant shall besides set up and keep his ain conveyance, research lab, all equipment etc. required for design, etc. for this undertaking. The cost relating to these shall be included in the command. The advisers are responsible for transporting out all Lab Trials to cover the biological, chemical and technology facets etc in connexion with Design wholly at their ain disbursal.

s ) When approached in his office in Islamabad either in individual or through telephone/ correspondence, the Consultant shall be available to the Client or his representative for explicating any proviso of design/documents/specifications / drawings etc. at no extra cost, in the office of the Client.

T ) The Consultant shall discourse the advancement of work sporadically with the Client during the design phases and blessing should be taken from Client at each phase. Monthly advancement studies shall be submitted in two transcripts.

U ) The Consultant shall help the Authority ( CDA ) in the pre-qualification of builders as per process already approved and adopted by the CDA, if so required.

V ) The Consultant shall publish stamp paperss consisting of instructions to bidders, conditions of contract, specifications, BOQs and building drawings marked “ tantrum for building ” on graduated table of non less 1:50 that may be modified upto 1:150, or whatsoever required by the Clients, to the contractors through CDA.

tungsten ) The Consultant shall besides help the CDA in the pre-bid meeting and attend to preies of the bidders and rede on the most logical action program required to be taken in the involvement of the authorization work.

ten ) The Consultant shall bespeak their design fee for each point of the assorted constituents of design to finish this assignment which will be based on man-month rates of all applied scientists and staff engaged for this intent. The methodological analysis and the analysis thereof is besides to be provided.

Y ) The Consultant is to supply one set of design calculations/computations and reproduce-able transparences, original plan/computer phonograph record / soft transcripts ( 10 Nos ) related to the work and 15 ( 15 ) sets of stamp paperss including drawings etc. Tenders shall be called on % age point rate footing, in the signifier of the bundles as asked by the Client, without any extra cost to the Client. However, extra stamp sets if required by Clients shall be paid at the rate of Rs. 50007- each.

omega ) The software/programs used during the design stage will go the belongings of Design Wing, CDA and the Consultants will supply the preparation installation to the Design Officers of CDA on the undertaking.

aa ) The Consultants will utilize F1DIC paperss for both consultancy and building contracts – besides including the commissariats of the CDA processs and ordinances.


The Consultant shall supply the under mentioned services corroborating to the function of the “ The Engineer ” as per PEC/FIDIC regulations. It is his responsibility to include all the services required for him/his staff for successful completion of the undertaking by supplying extra services, as he may see appropriate with anterior cognition of the Client at no extra cost. The cost of such extra services shall be deemed to be included in the fees demanded for the onsite occupation supervising.

a ) To supply elaborate supervising of building / installing / hard-on by the Contractor ( s ) and see/test its operational soundness & A ; efficiency.

B ) To look into / right taging on the land of the designed constituent ( s ) of the STP plants and services etc.

degree Celsius ) To look into the building work as to its conformity with the concluding sanctioned drawings, stamps paperss and specifications.

vitamin D ) To supply monthly advancement studies and hold meetings with the Client and Contractor ( s ) on monthly footing.

vitamin E ) To take action so that the Contactor ( s ) carry through their duties as per the contract understanding by and large and peculiarly in regard of proper execution of clip agenda agreed upon between the Client, Consultant and Contractor ( s ) .

degree Fahrenheit ) To look into the measures of the Contractor ( s ) and to attest in composing to the consequence that the work done for which payment is being made is in conformity with drawings, design and specifications and that the plants have been really executed.

g ) To measure fluctuations ensuing from revised requirements/ designs, accommodations, permutations of stuffs etc. and publish formal fluctuation orders after blessing of the Client to the Contractor ( s ) with a transcript to the Client as per sanctioned commissariats of building paperss. No work will be under taken boulder clay such clip the fluctuation order is approved by the Client.

H ) To inspect the said undertaking at clip it is offered by the Contractor ( s ) for taking over by the Client and to fix a list of all such defects or incomplete/partially completed plants which exist at the clip and to acquire the same rectified/completed through the Contractor ( s ) .

I ) To inspect the said undertaking during defect liability period of 12 months from the certified day of the month of completion and acquire the noticed defects during this period removed through the Contractor ( s ) as per commissariats of the understanding.

J ) Before the significant completion certification is issued to the Contractor ( s ) , the undertaking or portion thereof will be inspected by the Consultant. A list of shortfalls/defects will be prepared by the Consultant which would be got completed/rectified by the Contractors ( s )

K ) At the clip of concluding handing/taking over of the undertaking, as built drawings will be prepared by the Contractor harmonizing to which the Undertaking or portion thereof will be taken over. The drawings will be checked by the Consultants as per the existent building of the constructions, services etc. on the land and verified by him.


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