The following information is provided as a guide to the climatic conditions likely to be encountered on the Site to assist the Contractor in ensuring that the Works are adequate to withstand the effects of the weather, but this shall not relieve him of his responsibility under Clause 11 of the General Conditions of Contract.

(a) Monthly average temperatures:
- Maximum 35 degree C
- Minimum 03 degree C

(b) Extreme Temperatures
- 47 degree C in June
- 2 degree C January

(c) Annual Average Rainfall:
Several times it has been observed that rainfall of 1000 mm did happen, however, 500 mm is Average Annual Rainfall per year and the majority falling in the monsoon months of July and August. On average there are 10 rainy days per year. Storm intensities can be high with storm totals reaching 200 mm with normal durations of 1 to 2 days.

(d) Monthly Average Relative Humidity.
- Maximum = 90%
- Minimum = 40%

1.19 Geology & Topography

In general, soil of the project site is alluvial and rich in potential plant nutrients. The land is fertile and has been used in the past for agriculture before the acquisition of the land by the employer for developing a housing society.

The project site is almost flat. The terrain of the surrounding area is also flat with mild slope towards the Hudiara Drain. Area surrounding the project site has been planned for the construction of houses.

1.20 Ground Water

The ground water level at the site of the Sewage Treatment Plant is around 100 Ft below ground level. Water is generally fresh and fit for direct human consumption with electrical conductivity in the range of 500 to 800 microohms / cm at 25 0C.

1.21 Site Data

The Contractor shall satisfy himself as to the accuracy of the data provided by the employer. The employer shall have no responsibility for the accuracy, sufficiency and completeness of such data.

1.22 Units of Measurement

All designs, drawings, specifications and manuals shall use FPS units and all measurements dimensions and performance data shall be quoted in those units.

1.23 Languages

All drawings, instructions, signs, notices, nameplates, etc for use in the operation and maintenance of the completed Works shall be in English.

Warning signs shall be in Urdu and English.

1.24 Contract Signboard

The Contractor shall supply and erect one or more Contract signboards at locations to be specified by the Engineer. The signboards shall contain sufficient information relating to the project with lettering in both English and Urdu in black on a white background. The layout and dimensions of the signboards shall be in accordance with the relevant Standard Drawing.

1.25 Compliance with Non - Advertising

The Contractor shall not use any part of the Site for any form of advertising without the prior written approval of the Engineer.

1.26 Safety Regulations on Site

The Contractor shall comply with all statutory and other regulations concerning the safety and security of his Site staff, operatives, staff of the Employer and Engineer and members of the Public affected as a result of his operations. He shall obtain copies of all the relevant regulations and shall make them available on Site for inspection by the Engineer. The Contractor shall make sure his employees use safety apparatus while working and wear safety glasses, hard hats, hard-toe boots, gloves and belts etc or any other necessary protective gear to be safe from injury or harm.





1.27 Protection of Existing Installation

The Contractor shall execute the Works in such a manner as to avoid interruption and interference with the operation of the existing construction activities, to minimize disturbance to those living or occupying properties near the Work and to all existing services within and adjacent to existing facilities. Access to the existing facilities shall be maintained, to the satisfaction of the Engineer at all times.

The Contractor shall apply to the Engineer in writing at least 28 days before starting any Work which involves interference with the existing structures, equipment, etc or otherwise interfere with or interrupt the Employer’s normal construction activities. The Contractor shall not execute such Work until he has received permission to proceed in writing from the Engineer.

The Contractor shall ensure that no earth, debris or rock is deposited on public or private roads or rights of way as a result of the Works and all vehicles leaving the Site shall be cleaned accordingly.

1.28 Protection of Existing Public and Private Services

The Contractor shall notify all public authorities, utility companies and private owners of proposed Works, which will affect them not less than one week before commending the Works.

The Contractor shall adequately protect, uphold, maintain and prevent damage to all services and shall not interfere with their operation without the prior consent of the public authorities, utility companies, private owners, or the Engineer as appropriate.

If any damage to services results from the execution of the Works, the Contractor shall immediately:
(i) Notify the Engineer and appropriate public authority, utility company or private owner about this occurrence.
(ii) Make arrangements for the damage to be made good without delay to the satisfaction of the public authorities, company or private owner as appropriate. The Contractor shall be liable for all costs for making good such damage.

The Engineer may issue instructions or make other such arrangements as he deems necessary, to repair rapidly and essential services damaged during the execution of the Contract, such arrangement shall not affect any liability to pay for making good the damage, and Contractor shall pay all costs due to this damage.


1.29 Permits

The Contractor shall be fully responsible for obtaining all necessary permits, Licence and permissions required for the execution of the Works, prior to the commencement of the Works.

1.30 Location of the Treatment Units

The location of treatment units comprising the treatment plant, generator room and offices etc. shall be as shown on the drawings.

1.31 Notice of Operations

The Contractor shall give full and complete notice to the Engineer and take adequate approval from him of all important operations to be undertaken at site.

1.32 Sampling

The Contractor shall provide for the approval of the Engineer samples of all the construction materials and manufactured items required for the Permanent Works, if ordered, all samples rejected by the Engineer shall be removed from the Site. All approved items shall be stored on the Site by the Contractor for the duration of the Contract under conditions to prevent deterioration of the approved sample. Any material or manufactured item subsequently delivered at Site for incorporation in the Permanent Works shall be at least equal to the approved sample.

1.33 Responsibility for Sampling and Testing

The contractor shall be fully responsible for the collection and testing of samples and shall bear all the expenses incurred on this account. The contractor shall seek the approval of the Engineer for the time and place for the specified testing of any plant, materials and other parts of the works. The test results shall be promptly forwarded by the contractor to the engineer.