Sector Water Supply

Project Type Special Assistance For Project Implementation (SAPI), Construction and rehabilitation of Water Treatment Plant (WTP)

Project Title Zletovica Water Use Improvement Project

Location Probistip and Stip, the Zletovica basin, Macedonia

Client Ministry of Agriculture, Forestry and Water Economy, Macedonia / Public Enterprise Hydrosystem Zletovica (PEHZ) /JICA

Project Period 2011 – 2014

UF Membrane at Probistip WTP

Sedimentation Basin at Stip WTP

Problems addressed by the Project

Zletovica, located in the north-eastern region of the Former Yugoslav Republic of Macedonia faced water shortage during summer season.

At Probistip, before the WTP construction, the water system was made up of shallow wells, a reservoir, and chlorine dosage equipment. The pump and piping were antiquated so that frequent failed supplies were caused by the breakage in addition to a shortage of water in summer season. At Stip, before the WTP rehabilitation, tap water was supplied through a WTP using raw water pumped up from shallow wells that made pump operation expensive and the WTP structure was poor since surface concrete had flaked off and the reinforcing bar was exposed.

Thus, Probistip and Stip municipalities were seeking an additional economical, stable, clean and safe water source and the new WTP as well as rehabilitation WTP to treat the Zletovica water.

Project background

The Zletovica Basin Water Utilization Improvement Project, the first Japanese ODA Loan project in Macedonia, began in 2003 to supply raw water to municipalities in the Zletovica river basin, was comprised of four packages: 1) construction of an access road, 2) construction of the multi-purpose Knezevo Dam, 3) construction of two intakes downstream of the Knezevo Dam and transmission pipelines from the intakes to municipalities, and 4) installation of SCADA. The water quality from upper stream of the Zletovica River is clean with the turbidity in Nephelometric Turbidity Unit (NTU) at usually less than 2.

WTP constructions were supposed to be implemented by the local governments within their budgets, however budgets were insufficient. In 2011 construction of the Probistip WTP and rehabilitation of the Stip WTP were included in the JICA ODA loan project upon request from the Macedonian Government. Slovenian Government grants were also applied for the works.

Service Period

Assisting Ministry of Agriculture, Forestry and Water Economy and PEHZ in the construction and rehabilitation of WTPs in terms of administrative and technology matters

Carrying out design review, tender assistance, construction supervision of Construction and rehabilitation of Probistip and Stip WTP

Assisting Probistip municipality and Stip municipality in reaching an agreement to receive Slovenian Funds

Actual Project Works

Probistip WTP (New construction) UF membrane (Population to be supplied: 16,000, Design capacity: 6,480m3/day) Sufficient gravity pressure to the UF filtration from the intake was the element to select the UF system for the

treatment system, which does not require pumps.

Stip WTP (Rehabilitation) Sludge blanket + rapid sand filter (Population to be supplied: 47,200, Design capacity: 43,200m3/day)