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Maribor W astewater T reatment P lant Presentation of PPP Model in Maribor - Slovenia

Explore the legal, institutional aspects, and concession contract particulars of the Maribor Wastewater Treatment Plant (WWTP) in Slovenia. Learn about the history, financing, and lessons from this public-private partnership (PPP) model for wastewater infrastructure in Maribor. Discover the key milestones, obligations, financing sources, and conclusions from the successful operation of Maribor WWTP. Visit the Aquasystems website for more information.

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Maribor W astewater T reatment P lant Presentation of PPP Model in Maribor - Slovenia

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  1. Maribor Wastewater Treatment Plant Presentation of PPP Model in Maribor - Slovenia Conference Danilo ŠALAMON – Chief of the Infrastructure projects Department .

  2. Maribor Wastewater Treatment Plant

  3. MARIBOR WWTP - Legal & Institutional Aspects Scope • Separation Main Collector // Treatment Plant Legal Framework • No Concession Law in Slovenia • Public Services Trading Act - (1993) Equivalent to : Law on Public Commercial Companies, or Law on Public Services Applies to State and Local Authorities Allowance for granting Concession through a “deed” and specific “enactment” • Municipal Concession Decree

  4. MARIBOR WWTP - Legal & Institutional Aspects Municipal Concession Decree - (Maribor – July 1994) • Object / scope / duration • Conditions / obligations • Compensation / consumer fee • Process standard • Pre-selection / tender procedures (Evaluation Committee) AQUASYSTEMS d.o.o. (AQS) • limited liability company • Special (Single) Purpose Company

  5. MARIBOR - History • August 1994 Pre-qualification • June 1995 Tender • January 1997 LDE - Preferred Bidder • January 97 / June 98 Negotiation • 29 July 1998 Contract Signing Development Period • 16 November 1999 Signature of the construction contract • 28 April 2000 Signing of the Loan Agreement • 09 June 2000 Starting of the Construction (Phase I) • 09 December 2001 Starting of the Construction (New Phase II) • 10 June 2002 Phase I start of Operation • 08 July 2002 MoU - New Phasing • 31 January 2003 Amendment of Concession (New Phasing) • 27 May 2003 Final Acceptance – Phase I • February 2004 Phase II start of Operation

  6. MARIBOR WWTP - Concession Contract Particulars • Municipality Particular Obligations • Assistance towards authorities • Provide land • Construct main collector • Implement / enlarge collection system • Fix Influent Parameters (monitoring study) • Sludge (transport – discharge and disposal) • Service Fee payment

  7. MARIBOR WWTP - Concession Contract Particulars • Concessionaire Particular Obligations • Obtain all permits • Submit design • Perform Monitoring Study (treatment line recommandation) • Meet construction deadline • Reporting / Monitoring / Testing

  8. MARIBOR Financing Main Collector - (7.7 Km - dia. 1 400 mm) - (Municipality) • Construction Contractunder Municipality leadership • E.U. funds (non reimbursable grant) LSIF : Large Scale Infrastructure Facility – 6.5 M Euro= 20% of WWTP cost Main collector : 5.5 M Euro Maribor South (Miklaus) : 1.0 M Euro

  9. Lessons // Conclusion • Necessity of strong political support and commitment; • Transparency and close cooperation with Municipality, central Authorities and Lenders; • A balance contract (visibility); • Way of financing wastewater infrastructure in a context of increasing technical and performance requirements; • A living model of delegated management in the Region.

  10. MARIBOR WASTE WATER TREATMENT PLANT www.aquasystems.si

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