PROVISION OF SEWAGE TREATMENT PLANT STP IN NAUSENA BAUGH AND NOFRA AT NAVAL BASE PORBANDAR

Design, Engineering Supply, Install, commissioning of modular and package type sewage treatment plant based on any technology MBBR/MBR/SBR or any other approved technology with tertiary treatment as per the details given as under and Design basis report enclosed as Appx 'A' to this schedule:- (a) The STP should be capable to treat waste water by using the design on basis of Detailed Design Basis Report enclosed as Appx 'A' to achieve the treated water parameters as per CPHEEO/NGT standards and as per details given herein. (b) An outdoor underground semi-underground collection sump (Minimum 50 KL capacity for 0.12 MLD and 100 KL for 0.28 MLD STP Plant) in accordance with the invert level Manhole of suitable capacity to be constructed in RCC just before the under ground package type treatment plant to cater peak flow in terms of guidelines of CPHEEO manual. The liftwell pumps of suitable design and totally automatic to be installed in the collection sump to operate automatically in accordance with water level sensors to handle the average flow rate as well as peak flow of the influent. (c) Sufficient redundancy in the pumps & valves & pipe lines shall be provided. Sewage lift well alongwith complete to be provided if it is desired as per the invert level. Level sheet alongwith recommendation of STP OEM to be submitted for final approval by the department. (d) All sizes, capacities shall be in conformance to CPHEEO ( Central Public Health & Environmental Engineering Organization) manual and other statutory requirements. (e) The treated water will be reused for arboriculture/Car washing points and for flushing purpose in residential areas however in rainy season the provision should be made to dispose off the excess water in sewage line of municipal corporation. The scheme to include tertiary treatment system like, chemical dozing, multigrade pressure filters and activated carbon filters in 100 % FRP construction to achieve the desired parameters. An outdoor semi underground covered sump of RCC construction to collect the clear treated water is included in the scope of work which shall be one 280 KL sump for 0.28 MLD plant and one 120 KL for 0.12 MLD plant. (f) The scope of work includes complete designs, (As per the availability of site which is 20 x 20 Mtrs for 0.12 MLD and 25 x 20 Mtrs for 0.28 MLD STP Plants including working space) drawings, excavation, removal of surplus soil, backfilling, compacting, manholes, exhausts, treatment reactor technology and all required civil works including hard standing as per approved design for the entire plot area for STP, Mechanical, Electric works components, foundations, disinfection system, pipes, cables, controls, monitors, switchgears, excavation, manhole chambers foundations, motors, blowers, MCC panels, sensors, starters, automation components complete in all respect and all as required to create a clean setup and an efficient system to treat the waste water and achieve the requisite parameters and reuse as enumerated here and elsewhere. The scope of work shall also include the Min 9 Lps & head 75m for 0.12 MLD plant & clean water storage tank and min 12 Lps & 55m head for 0.28 MLD plant & clean water storage tank installation of treated water pumps (1 W+. 1 S) for each clear water storage tank including SCADA system for automatic operation of the treated water pumping system. Any minor items, components, sub-system not specifically mentioned but essentially required is considered included in the quoted rates and nothing extra shall be paid to contractor on this account. Note: Treated water network after pump header shall be measured and paid separately under relevant items of the schedule. However integration of field devices with the SCADA system shall be part of the quoted rates under this items.

(g) Influent (RAW) sewage parameter assessed by the contractor based on sample collection given in CPHEEO manual on sewerage and sewage disposal as per actual site. (h) Treated water parameters to be as per latest NGT order : (i) pH-6.5 to 8.3 (ii) TSS- Less than 10 mg/l (iii) Total Nitrogen less than 10 mg/l (iv) BOD - less than 10 mg/l (v) COD -Less than 50 mg/l (vi) Fecal Coliform -NIL (vii) Total Phosphorous -01 mg/l (viii) Odour-No foul odour (j) STP SCADA System along with various Automation equipment for STP as indicated and as per details attached. The STP SCADA system shall comprises: Central Monitoring Station (CMS) with personal computer with latest processor and monitor of suitable size, UPS with two hours backup, Colour Laser Printer, Server (When more than one STP being monitored centrally), Data Gateway, SCADA software which can be operated, programmed and modified by agencies other than developer, PLC/ Microprocessor Controllers with indoor/outdoor applications for water sensing display, pump operation with RTU/ without RTU or Microprocessor controller and microprocessor transmitter, Suitable communication system including payment of bills to telecom service provider. Pressure transmitters, Ultrasonic sensors, Flow-meters and switches, Online continuous effluent monitoring system (OCEMS) (k) Online continuous effluent parameter monitoring system to measure and display the BOD, COD, TSS and residual chlorine employed in the system along with data logging capability of upto 10 days data should be shown at operator room on the computer screen at an interval of upto one hour. Flow meter of appropriate type and with digital display and data logging duly connected to central control panel shall be installed in clear water pipe line to measure the out flow. (l) The entire design, scheme, schematic including OEMs drawings and designs shall be got approved from CWE office before procurement and commencement of the treatment plant. Any changes, modification, clarification sought by CWE office in fulfillment of the contract conditions shall be met by the contractor without delay and without any financial liability. A period of sixty days shall be accounted for final approval of the design of the system design, drgs and components. The design of STP shall be vetted by the IIT/NIT before submission for approval by Capacity of STP plant to be installed and commissioned:-

(i) 280 KLD (Site availability is 55x15 mtrs including working space) as mentioned here-in-above in item No. 1.01 to 1.02

(ii) 120 KLD (Site availability is 25x20 mtrs including working space) as mentioned here -in-above in item No. 1.01 to 1.02

SCHEDULE "A" PART-IB ( BUILDINGS & STRUCTURAL WORKS) Total of Sch-'A' Part-IB B/F

SCHEDULE "A" PART-II (SITE CLEARANCE, AREA DEVELOPMENT, EXCAVATION & EARTHWORK) Total of Sch-'A' Part-II B/F

SCHEDULE "A" PART-III (INTERNAL ELECTRIFICATION) Total of Sch-'A' Part-III B/F

SCHEDULE "A" PART-IV (INTERNAL WATER SUPPLY) Total of Sch-'A' Part-IV B/F

SCHEDULE "A" PART-V (EXTERNAL ELECTRIC SUPPLY) Total of Sch-'A' Part-V B/F