Lanchkhuti WS Project Overview

Supervision of Water Supply Systems Rehabilitation Works in 17 (21) Towns of Georgia under WIMP (Rehabilitation of Lanchkhuti Water Supply System EIB/WIMP/W/ICB/07)

Extension of Distribution Network: 24,250m of PE100 Pipe (OD200, OD160, OD110, OD90, OD63 & OD32), 450m

of Steel Pipe (d159/4mm, d108/3mm & d76/3.5mm), associated 1,151nr House Connections & 10,300m of PE100 Pipe (OD20).

Sectoring of City Network with 10nr Valves. Installation of 1,950m of Transmission Main Steel Pipe (d109/4mm & d272/6mm), from Lashis Gele Reservoir to

the City Network.

Lashis Gele Outfall - Construction of new Reinforced Concrete Reservoir (500m3), with associated Valve Chamber & installation of associated inlet & outlet pipes and valves, rehabilitation of Headwork Capitation Area (new stone filter layers and perforated collection pipes), construction of new Chlorine Building & Gas Storage Structure and installation of Chlorine Gas Dosing System at Reservoir Area, Installation of SCADA System including Flow Measurement, Residual Chlorine Monitoring and Flow Control.

Oragvis Gele Outfall - Construction of new Reinforced Concrete Reservoir (1,900m3) , with associated Valve Chamber & installation of associated inlet & outlet pipes and valves, rehabilitation at the existing Chlorination Building and installation of Salt Based Disinfection System at the second Reservoir Area. Installation of SCADA System including Flow Measurement, Residual Chlorine Monitoring and Flow Control.

Contract value 2,700,000GEL (€1,125,000) FIDIC Red Book MDB 2006

PIPE TRENCH EXCAVATION

24,250M OF PE100 PIPE (OD200, OD160, OD110, OD90, OD63 & OD32) INSTALLED UNDER THE PROJECT

PE PIPE WELDING

BRANCH CONNECTIONS UNDERGROUND FIRE HYDRANT AND ISOLATING VALVE

55NR OF PREFABRICATED CONCRETE MANHOLES INSTALLED IN CITY NETWORK

1,151NR HOUSE CONNECTIONS & 10,300M OF PE100 PIPE (OD20)

PE EF PIPE SADDLE FOR HOUSE CONNECTIONS PN16 WATER METER PVC BOX

CORRUGATED PVC PIPES AS BOXES FOR 1ST VALVE WM BOX AND 1ST VALVE CORRUGATED BOX

DEWATERING OF TRENCH – LANCHKHUTI CITY HAS HIGH LEVEL OF UNDERGROUND WATER

PIPE CROSSING OVER THE EXISTING STORM WATER CHANNELS & CREEKS

BRIDGE CROSSING

PRESSURE TESTING AS PER “SNIP” CONSTRUCTION NORMS AND REGULATIONS 3.05.04-85*

DISINFECTION BY CHLORINATION FLUSHING POINT

Lashis Gele Transmission Main Reservoir – City Network

Installation of 1,950m of Transmission Main Steel Pipe (d109/4mm & d272/6mm), from Lashis Gele Reservoir to the City Network.

STEEL PIPE MATERIAL (D109/4MM & D272/6MM),

Lashis Gele Intake Filter

Rehabilitation of Headwork Capitation Area (new stone filter layers and perforated collection pipes)

ORIGINAL STATUS OF CLOGGED FILTER AREA EXCAVATION & REMOVAL OF EXISTING FILTER MATERIAL

PERFORATED COLLECTION PIPES

APPLICATION OF NEW FILTER MATERIAL

INSTALLATION OF GEO-TEXTILE ON SIDES OF FILTER AREA COLLECTION PIPES, VENTILATION PIPE

PERFORATED COLLECTION PIPES

FILTER MATERIAL

FINAL STATUS

REGULATION OF NEW 500M3 RESERVOIR INFLOW VALVE CLOSED – WATER FROM FILTER DISCHARGED INTO THE RIVER

Lashis Gele Reservoir / Chlorinator Building

EXISTING RESERVOIR HAD TO BE DEMOLISHED DUE TO MULTIPLE LEAKAGES, DETERIORATED CONCRETE

WALLS & BASE SLAB OF OLD RESERVOIR USED AS SHELL FOR NEW RESERVOIR

NEW BASE SLAB, WALLS & COLUMNS NEW RESERVOIR ROOF SLAB REINFORCEMENT

RESERVOIR INTERIOR

BITUMEN PROTECTION FINAL STATUS AFTER BACKFILLING (INSTALLED ULTRA SONIC WATER LEVEL METER, AUTOMATIC VALVE ON INLET SHAFT, VENTILATION PIPES, LAMP-POSTS AND ACCESS MANHOLES)

Lashis Gele Reservoir Chlorinating Building

Double “Bunker type” Chlorinator with 2nr Chlorine Gas submersible chambers in case of emergency, Chlorine Gas automatic dosing system, SCADA System

ORIGINAL CHLORINATOR BUILDING NEW CHLORINATOR BUILDING

RESERVOIR OUTLET PIPING RESERVOIR VALVE (SHUTTER) CHAMBER, UL.SONIC FLOW METER SHAFT, RESIDUAL CHLORINE ANALYSER SHAFT INTEGRATED IN SCADA SYSTEM

Oragvis Gele Outfall

New 1,900m3 Reservoir & reconstructed Salt based Chlorinator Building

DUE TO DETERIORATED CONDITION OF EXISTING CONCRETE, MULTIPLE LEAKAGES, EXISTING RESERVOIR WAS PARTIALLY DEMOLISHED

EXISTING BASE SLAB & PARTIAL WALLS –USED AS SHELL FOR NEW RC RESERVOIR

NEW BASE SLAB, WALLS, COLUMNS

NEW RESERVOIR ROOF SLAB REINFORCEMENT ROOF SLAB CONCRETE. (ASSOCIATED VALVE CHAMBER & ASSOCIATED INLET & OUTLET PIPES AND VALVES INCLUDED)

NEW 1,900M3 RESERVOIR INTERIOR FINAL STATUS – AFTER BACKFILLING, INSTALLATION OF UL.SONIC WATER LEVEL METER

Oragvis Gele Outfall Chlorinating Building

Rehabilitation at the existing Chlorination Building and installation of Salt Based Disinfection System at the Oragvis Gele Reservoir Inlet Area. Installation of SCADA System including Flow Measurement, Residual Chlorine Monitoring and Flow Control.

ORIGINAL CHLORINATING BUILDING REHABILITATED CHLORINATING BUILDING

ORIGINAL STATUS OF CHLORINATING BUILDING MIXING BASIN

REHABILITATED INTERIOR, CEILING, WINDOWS, MIXING BASIN