Call for Quotations Construction of Solar-Powered Safe Drinking Water Stations

Job details

Call for Quotations Construction of Solar-Powered Safe Drinking Water Stations 1. Invitation A humanitarian organization invites sealed quotations from qualified, registered and experienced firms for the construction of three (03) solar-powered safe drinking water stations in three villages located within a 25 km radius of Muzaffargarh city, South Punjab. The project is funded by Good Neighbors Pakistan and is to be implemented in accordance with the donor's Standard Operating Procedures (SOPs), the attached Bill of Quantities (BoQ), and the detailed measurements provided at Annexure E. 2. Summary of Requirement Project Construction of Solar-Powered Safe Drinking Water Stations Number of Stations 03 (one station in each of three villages) Project Location Three villages within a 25 km radius of Muzaffargarh city, South Punjab Issue Date 27 July 2026 Submission Deadline Thursday, 3 August 2026, by 5:00 PM (PKT) Procurement Method Single-stage, single-envelope; sealed quotations Evaluation Basis Quality-cum-Cost 3. Scope of Work Each of the three (03) water stations comprises the civil, drilling, mechanical and solar electrical works summarized below. The complete technical specifications, measured quantities and detailed measurements are provided in the attached Bill of Quantities (BoQ), the measurement sheet at Annexure E, and the The donor’s Standard Operating Procedures, all of which form an integral part of this Call for Quotations. Vendors must quote against every item of the BoQ. S.# Scope of Work (per station) 1 Earthwork excavation in open cutting from 5 ft to 10 ft (1.5 m to 3 m) depth, including shoring, shuttering and timbering of trenches, dressing to designed level and dimension, backfilling and disposal of surplus excavated material up to 100 ft (30 m) — ordinary soil. 2 Cement concrete 1:4:8 (1 cement, 4 sand, 8 coarse aggregate) using graded crush ¾ inch (20 mm) and down gauge in foundation, including levelling, compacting and curing, complete. 3 First-class solid burnt brick masonry set in cement mortar 1:4 in straight or curved walls 9", 13.5" and less in thickness, including scaffolding, raking out joints and curing, complete — inclusive of the internal 3" thick cavity wall on all four sides. Tank external 8'x8'x8'; internal after cavity wall 5.5'x5.5'x5.5' (approx. 6,000-litre capacity), plus 1 ft above earth level. 4 Cement plaster using coarse sand on soffits, sides, internal and external tank surfaces, including making edges, corners and curing. 5 Providing and fixing ceramic mosaic (Quartz stile / Crystal) tiles on the face of the water pad, size 8"x12" (200 mm x 300 mm), with approved bonding material, water sealed, complete including labour. 6 Providing, fabricating and laying deformed Grade 40 steel reinforcement for all kinds of RCC work in foundation, plinth and ground floor, including straightening, removal of rust, cutting, bending, binding, wastage and overlaps (DPC and roof slab). 7 Providing and laying in-situ cement concrete 1:1.5:3 using approved coarse sand and crushed aggregate ¾" (19 mm) and down gauge, including compacting, curing, cost of formwork and its removal (DPC and tank roof slab). 8 Providing, supplying, filling and compactly installing approved thermal insulation material within the 3-inch (75 mm) cavity wall gap to minimize heat transfer and maintain potable water temperature, including all labour, materials, tools, handling, cutting, fitting and finishing, complete in all respects as per the Engineer's instructions and approved specifications. 9 Supply and installation of Cast Iron (CI) cover and frame, size 24" x 18", medium duty, fabricated using 1.5" x 1.5" angle iron frame with 18 SWG GI sheet, properly fixed, aligned and seated over the chamber/opening as per approved drawings, complete in all respects. 10 Borehole drilling in all types of soil strata (expected depth in target areas 60 to 70 Rft), including supply and installation of casing pipe, strainer and suction pipe, complete with all material, labour and equipment. Initial test pumping shall be carried out to extract water samples for water quality testing. Rates must be quoted per running foot (Rft) of drilling (see Section 4, Pricing Requirements). 11 Supply, installation, testing and commissioning of the solar motor pump, 0.75 HP, complete with all required accessories, fittings, electrical connections and proper alignment for efficient operation, installed as per the Engineer's recommendations and ground conditions, with minimum 12-month warranty against manufacturing defects. Vendors must quote separate rates for both pump types — surface and submersible — as set out in Section 4.1. 12 Supply, installation, testing and commissioning of a complete solar power system comprising two (02) mono-crystalline N-type solar panels of 610 Watts each, mounted on a hot-dip GI frame securely fixed on the RCC roof; one (01) tubular battery 24V, 100 Ah; one (01) 50A MPPT solar charge controller; and inverter, installed on a fabricated iron stand. All electrical connections using 7/29 copper cable for AC wiring and 10 mm² copper solar cable for DC connections, including conduits, fittings and safety accessories, complete in all respects. 13 Supply and installation of four (04) bib cocks, Master/Faysal brand or approved equivalent, fixed with GI piping including sockets and fittings, properly concealed or surface-mounted in the wall as per approved drawings, complete and leak-free. 14 Provision and installation of 3-inch diameter drainage / wastewater disposal pipe including required elbows, GI/PVC fittings and jali/net strainer, laid up to approximately 15 running feet (Rft) and properly connected to the soakage pit, complete in all respects. 15 Construction of soakage pit 4 ft diameter x 5 ft depth, including excavation in all types of soil, half-filled with graded gravel and coarse sand for percolation, 1.5 ft thick brick masonry lining, and 4-inch thick RCC slab reinforced with steel bars at 6"x6" spacing cast in 1:2:4 mix, including curing and finishing, complete. Note: All equipment, materials and workmanship must conform to the technical standards described in the The donor’s SOPs and to the specifications at Section 3A. The installed pump must carry a minimum 12-month warranty against manufacturing defects. 3A. Technical Specifications (Solar Pumping System) The following minimum specifications, as advised by the donor, shall apply to all three stations. Any deviation must be declared in the quotation and is subject to approval. Component Minimum Specification Solar motor pump 0.75 HP solar motor pump, complete with accessories, fittings and electrical connections. Pump type (surface or submersible) to be quoted for both options — see Section 4.1. Solar panels Two (02) mono-crystalline N-type solar panels, 610 Watts each, mounted on hot-dip GI frame securely fixed on the RCC roof. Battery Tubular battery, 24 Volts, 100 Ah. Charge controller 50A MPPT solar charge controller. Cabling 7/29 copper cable for AC wiring; 10 mm² copper solar cable for DC connections, including conduits, fittings and safety accessories. Warranty Minimum 12-month warranty against manufacturing defects on the installed pump and system equipment. 3B. Security and Protection of Equipment The vendor shall ensure the safety and security of the motor pump, solar panels, charge controller, battery, and all cables and connectors, both during execution and on handover. This shall include, as applicable: • Secure mounting of solar panels on a hot-dip GI frame, firmly anchored to the RCC roof to resist wind loads and deter theft. • Protective enclosure or lockable housing for the battery, charge controller and inverter, installed on a fabricated iron stand in a safe and ventilated position. • All cables and connectors properly routed in conduits, secured, weatherproofed, and protected against mechanical damage, rodents and water ingress. • Earthing/grounding and appropriate protection devices for the electrical system as required for safe operation. • Safe and secure installation of the motor pump with proper alignment, protection from water ingress and unauthorized access. 4. Pricing Requirements 4.1 Pump Type (rates required for both options) The expected bore depth at all three target villages is between 60 and 70 feet. As advised by the donor, the pump type (surface or submersible) is to be confirmed on the basis of what is commonly feasible in the area and the actual ground conditions encountered. Vendors must therefore quote separate unit rates for both pump types, each rated 0.75 HP. The applicable pump for each station will be selected by the organization in consultation with the Engineer, and payment will be made against the pump actually installed. Opt. Pump Type / Application Unit Rate (PKR) per station a Solar surface motor pump, 0.75 HP (e.g. Shahzad / Punjab Donkey type or approved equivalent), installed and commissioned, 12-month warranty b So