TENDER NO: RW10384176/20 PROVISION OF IN-SITU VERIFICATION AT RAND WATER’S BULK CUSTOMER METERS WITHIN THE DISTRIBUTION NETWORK SERVICES FOR A DURATION OF THREE YEARS NB : “THE TENDER SHALL BE AWARDED TO MULTIPLE SERVICE PROVIDERS” Date: 18 June 2020 Venue: Zwartkopjes Pumping Station Time: 10H00 AM 1
Rand Water Team • Commercial Team • SHERQ • Technical Team 2
Procedure to be observed • Non-Compulsory Attendance register to be completed by all present. • Issue Date: 20 March 2020. • Closing date: 30 June 2020. • Submissions must be deposited before 12:00 noon at No:522 Impala Road Glenvista, main gate. • All submissions after closing date will be rejected. • Contact persons: Lesego Sineke and Jabulile Molema (Supply Chain). 3
Validity Period • The tender shall remain valid for a period of 180 days from the date of closing of the tender. Rand Water reserves the right to extend the validity period if required. 4
Pre- Qualifiers for this Tender – Pre Qualifier • Signed Form of Offer. • The use of correction fluid or any other similar substance to make corrections is not permitted. • Letter of Good Standing from the Department of Labour or an Accredited Institution. 5
Commercial - Returnables Commercial Section • Page 14-15 of 73 – Detailed list of returnables for Bid Evaluation 6
Evaluation Process Rand Water conducts a two stage evaluation process for all bids, intending to provide services or goods to the organization as follows: • First part of the evaluation process is the functionality evaluation. • All bids evaluated at this stage must achieve a minimum of 60% scoring. • Below 60 % will not be considered to second stage of the evaluation. • Rand Water shall then apply the objective criteria in accordance with the PPPFA that will determine the evaluation outcome • Part of the functionality evaluation Rand Water also uses a Financial Tolerance Range • Award is then based on the preferential point system. NB: award based on quality of submission not reputation 7
Technical - Returnables • For the list of all relevant returnables refer to Page 9-12 of 73 Table T1.3.2 • Technical Evaluation will be based on : Record of Previous Experience relevant to the current scope/ work (with contactable client ref.) Overall Performance on Previous Work Quality Management Systems Human Resource Capacity Equipment Resource Capacity Risk Introduced by Bid Qualifications (e.g. limitations, assumptions, limited liability etc.) Project Risk Management Detailed Project Programme Method Statement SHERQ 8
TECHNICAL PART INTRODUCTION Conduct In- situ verification of Rand Water’s bulk customer meters within the distribution network as part of the Periodic Maintenance Program and compliance to Rand Water’s Bulk Water Supply Contract with its customers. Rand Water’s revenue is generated from these meters, therefore the customers depends on Rand Water to ensure that these billing meters are consistently accurate and reliable from a billing perspective. The integrity of all these meters is also vital for the effective functions of water demand management and water balancing. 9
Scope of work cont. • OBJECTIVES OF THE WORK • To ensure that all bulk customer meters are operating within the required specifications as per the manufacturers specifications. • To ensure that all bulk customer meters comply with the requirements for metering as per the Bulk Water Supply Contract. • To ensure that the integrity of all bulk customer meters is maintained. • To ensure compliance to legislation with regards to the billing of customer meters. • To identify meters that are non-compliant as soon as possible and rectify non-compliance. • To provide Rand Water customers with calibration certificates of all meters tested for audit purposes as per the Bulk Water Supply Contract. 10
Scope of work cont. • Conduct in-situ verification of customer meters within Rand Water’s distribution network as per the schedule provided. • Service providers MUST use an Ultrasonic clamp-on meter as the reference / check meter with the following capabilities i.e. • Accuracy (velocity), • Pipe ID>6 in (150mm): ±1% to 2% of reading typical; Pipe ID<6 in (150mm): ±2% to 5% of reading typical • Repeatability • ±0.1% to 0.3% of reading • Range (Bidirectional) -40 to 40 ft/s (12.22 to 12.2 m/s) • Rangeability (overall) at 400:1 • Measurement Parameters: of volumetric flow, totalised flow and velocity flow. • Enclosure must be IP67 submersible. 11
Scope of work cont. Scope of work cont. • Battery must be 24hrs of continuous operation with an input of 100 to 250 VAC, 50/60 Hz, 0.38A • Memory must be FLASH memory, filed upgradable and operating temperatures of -4ºF to 131ºF (-20ºC to 55ºC) • Standard input/output of 0/4 to 20mA current output, 550W maximum load with user selectable pulse (solid state, 5V max) or frequency (5V square wave, 100 to 10 000 Hz), with 4 to 20 Ma analogue inputs with switchable power supply for loop-powered temperature transmitters • Digital interface: USB communication port for PC interface and site parameter programming, with storage for saving site parameters and 800 site tests. • Data Logging: memory capacity to log over 100 000 flow data points, keypad programmable for log units, update times and with start and stop times. • Clamp – on flow transducers : temperature ranges of -40ºF to 302ºF (-40ºC to 150ºC) with stainless steel chain or strap, or magnetic clamping fixtures. • Pipe thickness range : 1.3mm to 76.2mm • Accuracy : ±1% typical or ±0.05mm 12
Scope of work cont. • Each meter verification test report SHALL include the following details i.e.: meter number, meter size, pipeline size, H.O ref number, customer name, meter name, start reading, end- reading, date and the percentage deviation (Template of certificate will be provided by Rand Water). • Each meter must be tested for a minimum period of 24 hours. The Service Provider may be requested to retest any meter, at no additional cost, should any concerns with regards to the tests be raised by Rand Water. • For mechanical meters only , a 7-day continuous flow trend is required for each meter to be tested as and when required. • Where pipelines are wrapped with anti – corrosion material, the Service Provider will be expected to clean the pipe for testing/verification purposes and thereafter re-apply anti – corrosion material on the pipeline. • The Service Provider’s quote shall make provision for travelling, labour, security, safety file and insurance for the respective meter sites. These costs must be incorporated into the quotation. Rand Water will not be held liable for the loss or damage to equipment. • Rand Water’s Metering Section shall monitor random tests to ensure conformity and compliance. • All testing equipment used by Service Providers MUST be calibrated and a valid calibration certificate (not older than 18 months) from an accredited laboratory (SANS 17025) shall be provided for such instrument before the work can commence. • The service provider must also be willing to have their testing equipment checked and/or verified by Rand Water’s customers should there be a need to do so 13
Scope of work cont. • Any pertinent matters relating to this project, which has not been included can be clarified with Rand Water’s Maintenance Manager at Bulk Water Distribution (BWD). • All sites SHALL be completed within specified time frames, no extensions will be granted. • Service Providers shall supply their own equipment and transport for this project. • Service Providers shall provide a technical report for each test. This report should include all the relevant data pertaining to each meter and the findings thereof. • Access into the meter chambers will be arranged by the Rand Water Metering Section. • Service Providers shall provide a list of any on-site access challenges where tests cannot be carried out due to environmental or safety concerns. • Should any of the meter chambers be full of water, the Service Provider will be required to pump out the water with their own dewatering equipment. • The Rand Water Maintenance Manager shall provide a schedule of the meters including the addresses or GPS co-ordinates of each respective meter chamber. • Safety induction will be provided by Rand Water – BWD, prior to the commencement of any work. • This work will officially commence once the contractor has been officially notified/appointed and the Service Provider’s safety file is approved by BWD’s Risk Control Section. • The contractor is strongly advised to comply with the Occupational Health and Safety Act and Regulations of 1993 when embarking on this project. • Service provider MUST have a minimum of 8 clamp-on units to complete this work within the given timeframe. • All testing equipment used by Service Providers MUST be calibrated and a valid calibration certificate (not older than 18 months) from an Accredited Laboratory (SANS 17025) shall be provided for such instrument before the work can commence. 14
THANK YOU QUESTIONS? 15
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