containment cell can be guaranteed. 5 15 Clause 4.5 (a) achieved, in the last five years, a minimum annual financial turnover (Experience under construction contracts related to the lake remediation) of Rs.38 Crores (Rupees forty crores only)@ - in any one year during the last five years. Balance Sheets and Profit and Loss Statements shall have to be submitted by the bidder as proof of the same. (1) We understand the value of work is 38 crore. Kindly confirm. (2) We request revenue from dredging work shall be considered for “Experience under construction contracts related to the lake remediation”. (3) We wish to submit that the balance sheet & profit & loss account of a diversified company do not reflect the revenue of a particular activity as it provides consolidated revenue of the company from various activities. Therefore, we request refer page no. 39 of the tender document which allows certificate from Chartered Accountant. “Attach certificate from Chartered Accountant.” The value is 38 Crores (Thirty Eight Crores only). Lake dredging works are included in the list of works. Chartered Accountant certificate shall be produced with certified balance sheets, profit and loss statements as per tender conditions. Please
HDPE Liner laying, welding and installation experience for construction of containment cell of quantity 20,000 sq.m for single bidder or JV together. reduce the quantity for single entity from 20,000 cum to 10000 cum. good 8 16 Clause 4.5 (e) De watering of sediments with the use of flocculants /electrolytes and/ or bags of tubes of geotextile with the aim to contain the polluted sediments within those bags or tubes for a total quantity of 20,000 cum for single bidder or JV together or We request that dredging work by using flocculants with aim to dewatering of the sediments and thereby to contain the sediments within the open containment cells shall also qualify for this. Kindly confirm. As the open containment cell filling is similar to filling of large geo bags. Open containment cell filling is not considered to be similar to the filling of large geo tubes or bags. Contents of the clause holds good
equipped with an auger head The actual operation and movement of the dredging equipment should be computer guided on the basis of this …. 2. Hydraulic dredger with auger head and with a daily capacity of at least 350 cu.m per day, including sufficient floating pipelines to transport the sediment slurry – 01 No. with auger head. Kindly Confirm. 11 17 Section 1 Clause: 1. General Qualification Sub clause: 4.5 : Experience Kindly provide the pumping distance i.e. distance from dredging location to geotextile tubes. The distance is the most important parameter to configure the dredger and its fuel consumption. The placement of geotextile tubes is as per the drawings given in the bid document.
of the Job. Therefore, we request you to kindly exempt us from submitting the details on the tender submission date. 15 19 Sub clause: 4.5 : Experience Sr. no. 1& 2 We request you that experience in water treatment plant/port infra/ex-service men shall also be considered for Sr. no. 1&2. Experience to be provided as per the bid documents 16 19 Sub clause: 4.5 : Experience Sr. no. 3 Specialist provided by geotubes manufacturer should be considered for the Sr. no. 3. Experience to be provided as per the bid documents 17 20 & 21 Section 1 Clause: 1. General Qualification Sub clause: 4.7 Bidders who meet the minimum qualification criteria will be qualified only if their available bid capacity is more (1) As the civil engineering works also includes dredging work hence, the value of dredging work shall also be considered for executed and for existing commitments for this clause. (2) We understand that the Estimated value is the bid value / Approximate value of works – It is Rs 37.1548 Crores. Price levels are calculated as per Financial Year ending in March of every year. The price levels to be brought
than the total bid value. The available bid capacity will be calculated as under: Assessed Available Bid capacity = ( A*N*1.5 - B ) where A = Maximum value of civil engineering works executed in any one year during the last five years …….. the completed as well as works in progress. B = Value, at 2015 price level, of existing commitments and on-going works to be completed during the next 1 year (period of value of total bid is Rs 37.1548 crore as defined on page no. 5 of bid documents. Kindly confirm (3) elaborate how the 2015 price level shall be calculated. Further, provide us the exact date on which these 2015 price levels will be considered (for example 31st March 2015 or 31st Dec-2015 etc.). (4) We understand that bidder has to submit the value of ongoing work (Dredging Work)to be completed during one year from bid submission date. Kindly confirm. to financial year level by adding 5% annually from the work completed year. Ongoing work and bids likely to be awarded shall be submitted.
completion of the works for which bids are invited) 18 329, 331, 343, 346, 349 72 SECTION 7: Part 1 to Part 9 of BOQ: *: The above prices are exclusive of VAT and LabourCess (while filling the BoQ please mention the exact percentage) Clause 45. Tax 45.1 The rates quoted by the Contractor shall be deemed to be inclusive of the sales and other taxes that the Contractor will have to pay for the performance of this Contract. The (1) We understand that the Quoted Rates would not include taxes, duties and levies, royalties (i.e. VAT, labour Cess and Service Tax etc.). We wish to submit that the Service Tax is also applicable for the services mentioned in the tender. Therefore, we also requestyou to kindly modify all the relevant clauses in the tender regarding Taxes. (2) We request that any change in the existing rate of taxes / any new taxes, Duties, fees etc. applicable for the services provided under the Contract from the date 28 days prior to the deadline for submission of bid, shall It is beyond the capacities of the Contractor to predict and/or provide for any future increase/decrease of taxes in the prices to be quoted now. Also if at all such an attempt is made it would unnecessarily increase the prices. Hence request the Employer to consider that in case of any such eventuality the benefit as well as the cost would be passed on to the Employer. Hence request you to kindly provide that all new taxes, charges, royalties, duties etc or any other levies and any changes to all the existing taxes, duties, charges, royalties, The final price quoted by the bidder will be inclusive of all taxes and duties, VAT, Labour Cess, levies and royalties etc. Bidder shall specify the taxes and duties in addition and arrive at final bid price and show the calculations in their bid submission in Price Bid form. Any changes in taxes and duties as per government rules and regulations as applicable from time to time will be payable to the bidder.
192 Employer will perform such duties in regard to the deduction of such taxes at source as per applicable law. m) Taxes and Duties – Contractor to specify the taxes and duties applicable under the contract and mention them separately under the items of BOQ. Other inherent costs are to be borne by the contractor which are not specified in the Cost Estimates. be paid and borne by the Employer. In view of the above we request you to kindly modify all the relevant clauses as follows: “The rates quoted shall be exclusive of all applicable Indirect Taxes (i.e. VAT, labour Cess and Service Tax etc) and the all applicable indirect Taxes shall be payable by the Employer as on actual and on provision of documentary proof. Further, any change in the existing rate of taxes / any new taxes, Duties, fees etc., for the services provided under the Contract from the date 28 days prior to the deadline for submission of bid, shall be paid and borne by the levies etc would be borne by the Employer.
along with the remediation works 20 110 Section 5: Specifications Scope of work Sediment and surface water of NMK Lake Based on the topographic survey and the sediment investigation, the volume of sediments is estimated at 32,317 m³ and the volume of contaminated clay at 13,752 m³ We request you to please arrange to provide the topographic survey data and the procedure/method adopted for differentiating the contaminated clay from the sediment. The methodology and topographic survey will be provided to the successful bidder. 21 119 Section 5: Specifications Clause 4.2: MMK Lake: We understand that the activity is linked to the completion of the STP. If there is any delay in STP No idle time charges will be paid to the manpower and equipments.
The sediments in NMK Lake will be removed and contained in cells along the bunds of the Lake. Once the upgradation of the STP and water collection management system have been completed (under a separate Contract), a sand layer will be applied on the bottom of NMK Lake. The application of the sand layer is the final remediation activity under this Contract. completion resulting in delay in the sand layer activity, the contractor should get Idle Charges for the duration of delay. Hence Idle Time charges for the Man-power & equipment to be included in the BOQ. However, extension of the contract period will be considered for sand laying activity only without any price escalation.
22 126 Section 5: Specifications Clause 4.3 : Second Last Para Before dredging of the sediments starts the Contractor has to conduct a continuous survey of the thickness of the sediment layer in Lake NMK and the height and position of the top of the clay layer in this lake. This survey has to result in a digital 3D model of the sediment and clay layer. The accuracy of the 3D model should be such that the thickness of the Please note that the side scan scanner and profiler for surveys are possible only in the water depths in excess of 5 meters to record interoretable data. High resolution sub bottom profiler’s accuracy / resolution is 15 to 20 cms. We understand that the max depth at NMK lake is 3.5 m, hence please suggest alternate (or) you may provide the design depth of dredging required. Contractor has to do the Sub Bottom Profiling investigation (SBP) as mentioned in the bid documents, which meets the specified accuracy. During selection of the proposed (combination of) methodology (ies) the Contractor has to take into account the shallow water conditions of the site. Contents of the clause holds good
sediment at any position in the lake is known within + 3 centimeter of the actual thickness. The position of the top of the clay layer at any position in the lake should be known with an accuracy of + 2 centimeter. 23 129 Section 5: Specifications Scope of work To guarantee a water pumped back to the Lake has at all times to be within 1.25 times above baseline conditions of the surface water quality of the lake. Does it mean 1.25 times that of NMK surface water or General lake body surface water quality? Please arrange to provide STP out let water quality monitoring parameters, preferably real time observations. Contents of the clause holds good
secured by the Contractor at its own expense. suitably. Further, please provide us the list of licenses & approval required for the work to be carried out under the Tender. 27 263 Section 5: Specifications Particular Specification Clause No: 13.1 General For this reason it was decided not to remove the clay layer and to protect its integrity by all means While dredging with precision its necessary to hold the dredger by anchors or crawlers on ground to maintain the location. Hence clay layer may get disturbed from its original profile. Amend suitably Contents of the clause holds good 28 270 Section 5: Specifications General Items Clause: 14.3 On Drawing No. IND50-1/05 details Soft copy of the tender document available on your web is not having Drawing No. IND50-1/05, please provide. Drawings to be purchased by bidder. With regard to requested correlation reference is made towards the tables presented
Quantities DAY WORK RATES (TO BE QUOTED BY CONTRACTOR): prevailing rates. The quoted rates will be escalated based on the Cost of Living Index. will be permitted during the entire tenure of the contract including any extension of contract even due to some un avoidable circumstances. 32 351 353 SECTION 7: Bill of Quantities Schedule of Day Work Rates - Construction: Materials Schedule of Day Work Rates - Construction: Equipments Tenderer to quote prevailing rates as on the date of bid submission. However, the same will be escalated based on Schedule of Rates (SOR) of any states/central Government percentage of increase. Day work rates will also remain fixed as the item rates are for the entire duration of contract. 33 General We understand that both price bid & technical bid to be submitted in single cover. Yes 34 General General Query: Geo tube, geo synthetic materials etc Please Confirm/provide us the applicability of import duty for items mandatorily requires to be imported. Please also specify if any exemption is available on Clarification will be provided later.
physical property and of personal injury and death which arise during and in consequence of the performance of the Contract other than the excepted risks are the responsibility of the Contractor. any third party property shall be the responsibility of the employer and the Contractor shall be indemnified thereof, unless such damage or injury is caused due to Contractor’s gross negligence or willful misconduct. (ii) Further, it is a standard industry practice that the contracting parties shall indemnify each other for loss or damage to their respective properties and injury or death of the respective personnel irrespective of however the said loss or injury occurs except in cases of gross negligence or willful misconduct of the concerned party. Hence, we request indemnity clause on Knock to Knock basis as per
standard industry practice. 37 76 Conditions of Contract Clause 59.4 Notwithstanding the above, the Employer may terminate the Contract for convenience. The Employer shall have the right to terminate the Contract only in case of breach of contractual obligations. Hence request deletion of clause 59.4 The Asset to be deployed for this project is highly capital intensive and specialized in nature. Further, finding alternate deployment for these assets would be difficult and also in the event of Dredger is idle, the Contractor shall incur losses. Hence, we request that Employer shall not terminate the Contract for Convenience. The World Bank General Conditions of the Contract holds good 38 76 Conditions of Contract 59.1 The Employer or the Contractor may terminate the Contract if the other party causes a fundamental breach of the Contract. We request that the Contractor shall give a cure period of 30 days for rectification of breach of contract, If the Contractor fails to rectify the breach during the said period, the Employer shall have the right to terminate the We request for a cure period for rectification of breach of contract before the Employer exercises its right of termination. The World Bank General Conditions of the Contract holds good
Insurance requirements are as under: Works and Plant and Materials: Minimum Cover for Insurance “At least equivalent to contract amount” and amend as “Minimum Cover for Insurance: At least equivalent to the value of Plant and Materials”. We understand Dredger is defined as Plant. Insurance to be considered & provided by Contractor / bidder. The contents of the bid document holds good. 42 120 Contractor's responsibility Second Paragraph Bidders are responsible and accountable for overall stability and performance of the entire construction works of the Remediation Works (as specified in these tender documents) and shall take a guarantee of Please clarify the maintenance period of 5 years commences immediately on completion of works. Operation and maintenance period commences immediately on completion of the defect liability period.
158 table-2 frequency of monitoring the tables presented on pages 270 until 287, the map presented on page 157 and the tables presented on page 159 until 170 63 General Man power during Operation and Maintenance (O&M) period Please confirm the minimum man power requirements during the O&M period location wise and their experience. Contractor has to assess and propose minimum requirements manpower and their qualification in his bid submission. 64 Page no 174 clause 19.1 Field laboratory Requirements of field laboratory is temporary structures or permanent RCC structure. Is there any provision to use existing buildings during the O&M period for laboratory purpose At the cost of the contractor 65 General Existing structures Please confirm any of existing structures No re-routing of existing structures. The contents of the bid document holds good. 66 General Temporary access roads We presume temporary access roads to the works place is a part of BOQ, , please confirm It’s a part of BoQ. The contents of the bid document holds good
67 General Specification for 2 mm HDPE sheet Please indicate the specification /Data sheet for 2mm HDPE sheet Reference to Requirements and Specifications for HDPE membrane / sheet (2 mm) is made in pages 219 until 223 of the bidding document. 68 General Rainbow Technique Some of the items related to sand activity we need to apply Rainbow technique. Could you please specify which are the Sr. No. of BOQ we need to consider the Rainbow technique. Section 5 - S. No. 501 of the BOQ as per Bidding documents. 69 Page no 330 BOQ S.no Disposal cost of Biomedical waste lead Please confirm the lead (distance) for the disposal of Bio medical waste. The lead distance is 60 KM 70 Page no 331 BOQ S.no Disposal cost of Hazardous waste lead Please confirm the lead (distance) for the disposal of Hazardous waste. The lead distance is 60 KM 71 Page no 333 BOQ S.no Construction of check wall Any reinforcement requirements to be considered for the wall, and also please confirm the requirements of check The bidder has to take the cost of the check wall and the valve while quoting the bid price.
75 Page no 345 BOQ Sno Power consumption Please specify the power consumption units per year. Otherwise please specify the equipments list and their loads to arrive he power consumption per year Contractor has to assess and specify the power consumption and the power costs in the Item of BOQ. It will be a part of contract. 76 Cl.no.61 Vesting of the plant NIT covers LD, Risk & Cost and compensation clearly indicated which is sufficient to take care. Specialized equipment and other equipments brought to the site are the property of tenderer only. Other materials if any, brought to site for which client has fully paid shall only be the property of the employer. The contents of the bid document holds good 77 Defect Liability period The defects liability period should r at least amended to exclude dredging works. The defects liability period includes for the total works. 78 General Completion certificate Kindly provide us the procedure to issue completion certificate A completion certificate will be issued by the Engineer In charge and the PMC Consultants once all the activities as per the bidding
for abandonment 82 What equipment needs to be used for well installation? Should a mud rotary method be used (which could result in cross contamination) or do you require a hollow stem augur method of installation? How are vendors going to make sure they do not punch through the clay layer which is important to this project? Are conductor casings required when drilling and installing wells past the clay layer? The well construction drawing in the bid document is not available on line, can you please provide that? Drawings will be provided by the Client to the successful bidder. However, the Contractor has to submit methodology for approval. 83 How many soil samples are required during well installation? Do you require soil core samples to further characterize the soil lithology? The tables provided on pages 270 until 287 and the map on page 157 and also the tables on page 159 until 170 may be considered. 84 Can we bid on each well to be installed rather than on total length of the wells? If additional wells are required then an accurate unit cost will be available to TSPCB for requesting additional wells. Bid has to be on total length of wells quoted per unit rate of length of well installation. 85 In the bid document you recommended HDPE pipe for the wells. We would like to recommend Schedule 80 PVC for this site. Please modify the well materials. The contents of the bid document holds good
86 Page 239 : Clause 11.2: Page 304: Sr.no 313: Part 3: Containment of sediments from Lake NMK and KIE Page 307: Sr.no 314: Part 3: Containment of sediments from Lake NMK and KIE Mentioned as “Characteristic opening O90 according to EN ISO 12956 250mμ”. Amendment: “Characteristic opening O90 according to EN ISO 12956 250mμ to 350mμ”. In order to maintain the flow rate required the geotextile tube needs to be fabricated to achieve the desired value, the opening size needs to optimally designed. The geotextile produced will always confirm to a range which can have a minimum and maximum values. In the present case of flow requirement, the maximum being 350mμ and minimum of 250 mμ. Characteristic opening O90 according to EN ISO 12956 250mμ to 350mμ is acceptable.
87 Page 236: Clause 11.1: Page 304: Sr.no 313: Part 3: Containment of sediments from Lake NMK and KIE Page 306: Sr.no 314: Part 3: Containment of sediments from Lake NMK and KIE Mentioned as- “tubes of geotextile with a circumference of 9 meter and a length of 27.5 meter”. Amendment: Option 1: “tubes of geotextile with a circumference of 9 meter and a length of 26.2m (+0.5m)” Option 2: “tubes of geotextile with a circumference of 9 meter and a length of 30.6m (+0.5m)” The Geotextile tubes are to be fabricated to suitable lengths by seaming circumferentially multiple panels of equal size (depending on production width) to form the Geotextile tube. In present case we can offer either 26.2m or 30.6m as per above options. The number of tubes may change based on the length selected. Tube or bag lengths between 26.2 (+0.5m) and 30.6 m (+0.5m) are acceptable.
91 236 304 306 Clause 11.1 Sr.no 313: Part 3: Containment of sediments from Lake NMK and KIE Sr.no 314: Part 3: Containment of sediments from Lake NMK and KIE tubes of geotextile with a circumference of 9 meter and a length of 27.5 meter “tubes of geotextile with a circumference of 9 meter and a length of 26.2m (+0.5m)” OR “tubes of geotextile with a circumference of 9 meter and a length of 30.6m (+0.5m)” The Geotextile tubes are to be fabricated to suitable lengths by seaming circumferentially multiple panels of equal size (depending on production width) to form the Geotextile tube. In present case we can offer either 26.2m or 30.6m as per above options. The number of tubes may changed based on the length selected. Tube or bag lengths between 26.2 (+0.5m) and 30.6 m (+0.5m) are acceptable. 92 Work Experience: The bid lays down a minimum experience requirement of undertaking similar nature of works over the last 5 years. Does this experience needs to be from India only or global experience would be considered? Global experience will be considered. 93 Site Visit: Do we need to be escorted by TNPCB officials prior to the site visit or do we need to request access of any sorts for undertaking the site visit? Site visit can be performed by the contractor on his own