CONSULTANCY SERVICES FOR SEWAGE TREATMENT PLANT (STP) AT AF STN NAL

Amount

Carrying out Digital Topographical Survey of domestic area Nal Station comprising of various MD Accn, Single living accn and other OTM accn approx 400 Sqm acre covered by STP of complete area at contour intervals min @ 0.5 mtr for plain areas and n.exc 1 mtr for sloppy grounds contour should be linked to nearest survey of India permanent bench mark) for provn of sewage network system duly marking all existing buildings with plinth level, roads, culverts, existing sewage network including septic tank and soakage wells/ pits, trees, cable markers, electric and telephone poles, nallahs, boundary wall, retaining walls and their invert levels by using total Electronic Station adln DGPS. Following data shall also be finished in above survey report : (a) Marking of existing sewerage system by indicating their invert bed levels, size of pipe, manhole locations with invert level so as to workout the slope of existing sewerage network. (b) Establishing Bench Marks by driving MS rod 16 mm dia (450 mm long) in ground over 30cm x 30cm PCC of suitable height with metal strip welded on top Bench mark can also be established on existing permanent features as available (minimum 1 for each 25000 Sqm). (c) Survey sheet hard copy shall be developed at the scale 1:1000 (d) 10 Hard copies with two soft copies in CD shall be submitted by consultant.

Planning and designing of sewerage system and pipe line network for treated water for entire area covered under Srl No 1 consisting of following details for STP: (a) Planning & Designing of sewerage system shall depend upon topography population load, connectivity to civil area with regards to underground, over ground and location of proposed STP. (b) Submission of detailed estimate of proposed sewerage system and pipe line network. (c) Submission of detailed report including proposed layout of sewerage network, design, calculation drawings, hydraulic calculations of scheme and capacity of pumps required for distribution of water 10 hard copies with two soft copies in CD.

Soil Investigation and soil data collection for design of proposed sewerage system and STP for connected area sumps/ lift wells etc. Preparation of bore hole of dia 100 to 150 mm upto 10 mtr below existing ground level for sewerage system including boring sampling and conducting STP percolation test and other tests for preparation of sub-soil profile. Conducting shear and UCT test in the lab including other tests like gradation index properties, specific gravity field density/ FMC. MDD/ OMC etc. Determination of SBC by analytical methods . Preparation and submission of consolidated detailed report in 5 hard copies and 3 soft copies in CD.

Planning and designing of sewage treatment plant comprising of collection tank/ pump house/ lift wells/ flush tank and all other infrastructure required (including mechanical, electrical & hydraulic system/ components) for modified/ upgraded sewerage system to cater the collection of sewage for area considered under item No 1. The specification of construction shall depend upon its subsequent uses as described below : (a) Planning and designing of tanks/ lift wells if required of capacity to cater for an amount of sewage considered above for installation of pumping machinery. (b) Planning and designing of pump house and machinery for pumping sewage. The design details of pumping unit shall invariably include submersible sewage pump with auto sensor for automatic operation of pump (one pump for avg. two pumps for peak flow and one standby pump) (c) Detailed estimate of designed structures and machinery separately. (d) Treatment procedure of sewage of STP to include primary, secondary and tertiary treatment below disposal of treated sewage water. (e) The parameter for reuse of treated sewage as per E-in-C guideline.

Preparation, presentation and submission of DPR for sewerage network system as proposed as per standard format and as specified elsewhere in tender documents. DPR shall also contain report generated for all items of BOQ. Five sets of hard copies and three soft copy shall be submitted in CD on approval. Note : (i) The assessed rate included of proposed sewage network scheme vetting IIT/NIT/DG (D&C)/ nominated PHE expert from command/ E-in-C's. The basis of the design scheme shall be clearly brought out in documents i.e. the BIS code adopted, publications/technical reference books/ journals referred, software package proposed to be used etc. The consultants shall be required to make available any reference material if needed by the client. (ii) Payment to consultant for completion of consultancy services shall be made after completion of each stage as above/mentioned in each Sl No 1.00 to 5.00.

PEE Consultants