3-17 Deletion of RU Sub-Hot Spot No 18-1
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Baltic Marine Environment Protection Commission Heads of Delegation HOD 47-2014 Helsinki, Finland, 9-10 December 2014 Document title Deletion of Sub-Hot Spot No. 18.1 “Construction of new sewer connections” (Saint- Petersburg) Code 3-17 Category DEC Agenda Item 3 – Matters arising from the HELCOM Groups Submission date 24.11.2014 Submitted by Russia Reference Action required Based on the information provided in this document, the Meeting is invited to decide on the deletion of Sub-Hot Spot No. 18.1 “Construction of new sewer connections” (Saint-Petersburg). Page 1 of 14 HOD 47-2014, 3-17 In the pursuance of the protocol of the 46-th Meeting of the Heads of Delegations, the Russian side informs the following. In 1992 HELCOM approved The Baltic Sea Joint Comprehensive Environmental Action Program, which included 132 “hot spots” that were located in all countries of the Baltic Sea catchment area. The "hot spots" have been identified as industrial enterprises, municipal wastewater treatment plants, agricultural enterprises, as well as other objects of economic activity, causing significant damage to the environment. At the 11-th meeting of the HELCOM LAND working group (16-18 of May 2006, Sopot, Poland) with a view to a substantive assessment of the progress it was decided to divide the "hot spot", which is under the authority of the SUE “Vodokanal of St.Petersburg”, on 19 separate "hot subspots", which included the development of the sewerage system (construction of sewers) in St. Petersburg and 18 waste water treatment plants, which should be deleted from the HELCOM list in accordance with criteria for deletion of "hot spots" subsequently. The decision of the 11-th HELCOM LAND group meeting was approved on the 19-th Meeting of the Heads of Delegation, which was held on 19-26 of June 2006, Vilnius, Lithuania (Agenda Item 3 - Matters arising from the HELCOM Groups, para 3.9.5; 3.9.6). Table 1 below provides a list of HELCOM "hot subspots" under the authority of the SUE "Vodokanal of St. Petersburg", which includes the date of deletion. Table 1 The List of “hot subspots” of the SUE “Vodokanal of St. Petersburg” Status № Name 18.1 Building of sewage collectors Planned deletion - 2014 18.2 Central Station Aeration (CSA) deleted in 2010 18.3 Northern Station Aeration (NSA) deleted in 2006 18.4 South-West WWTP deleted in 2009 18.5 Pargolovo WWTP deleted in 2006 18.6 Prigorodnye WWTP - deleted in 2006 18.7 Torfynoe WWTP deleted in 2006 18.8 Zavodskie WWTP - deleted in 2006 18.9 Puskin WWTP deleted in 2006 18.10 Petrodvorets WWTP deleted in 2012 Increasing of productivity up to 150 thousand m3/day and the construction 18.11 Kolpino WWTP of a shop for sludge incineration of sludge - the planned deletion in 2015 18.12 Kronshtadt WWTP deleted in 2009 Page 2 of 14 HOD 47-2014, 3-17 18.13 Sestroretsk WWTP deleted in 2006 18.14 Pontonny WWTP deleted in 2009 Closure of WWTP in connection with 18.15 Metallostroy WWTP switching of wastewater on Central SA, the planned deletion - 2015 18.16 Repino WWTP deleted in 2009 18.17 Zelenogorsk WWTP deleted in 2006 18.18 Pesochny 1 WWTP deleted in 2012 18.19 Pesochny 2 WWTP deleted in 2012 The construction of the main sewage collector in Saint Petersburg (subspot 18.1) have been completed in October 2013 and the official launch of the facility was done. Put into operation of the main sewage collector have allowed to treat 98.4% of urban wastewater and to fulfill the criteria for deletion of “hot subspot” №18.1. At the 19-th meeting of HELCOM LAND (14-16 May 2014), Russia submitted a proposal to delete the “hot subspot” № 18.1. In accordance with the decision of the meeting (on request of countries), Russia has been prepared and submitted additional information on concentrations, flow rate and efficiency of treatment on 3 large wastewater treatment plants (Central SA, Northern SA and South-West WWTP) . At the 46th meeting of the Heads of Delegation (15-17 September 2014), in considering this issue, the Finnish delegation did not support the deletion of the “hot subspot” №18.1. In accordance with the decision of the Finland Head of Delegation, it was required to submit specific questions needed to clarify the position of Finland. In a letter of the Finland Head of the delegation on 01.10.2014, noted that there are concentrations exceeding the HELCOM nitrogen norm in the treated waste water discharged from the Northern SA. Also referenced to the Joint program for the closure of direct discharges into the river Neva (Northern Dimension Environmental Partnership and the “Vodokanal of St. Petersburg”), which includes activities for Northern SA and Central SA, uncompleted at this moment. We believe it is necessary to separate the Program for closing direct discharges into the river Neva and its activities to Northern SA from work for deletion HELCOM “hot subspot” № 18.1, which relates directly to the construction of sewers. As can be seen from tables (Appendix 1,2 - The removal efficiency of nitrogen and phosphorus on waste water treatment plants of SUE “Vodokanal of St. Petersburg” for 9 months of 2013 and 2014) - connection the main sewage collector to the Northern SA almost haven’t caused increasing of nutrient concentrations in the treated wastewater, which generally correspond to the preceding to this period indicators (average concentration of nitrogen in the treated wastewater from the Northern SA during period from November 2013 -to April 2014 increased by only 5% of the average concentration for the period January 2013 - October 2013). Thus, the marked concentration exceeding the HELCOM nitrogen norm in the treated waste water discharged from the Northern SA does not result put into operation of the collector and caused primarily activities implemented directly on the WWTP. However, sharing the concerns of Finland, it should be noted that “Vodokanal of Saint- Petersburg” has undertaken compensatory measures to improve the quality of treated wastewater to Page 3 of 14 HOD 47-2014, 3-17 the other treatment facilities. As can be seen from the summary Table 2 - The removal efficiency of nitrogen and phosphorus - additional measures have allowed to reach HELCOM standards in the total volume of treated waste water discharged into water bodies. Table 2 Summary on nitrogen and phosphorus removal Nitrogen Phosphorous Removal Removal Effluent flow Concentration, Amount, Concentration, Amount, Name of efficiency efficiency 103 m3/9 mg/l t/year mg/l t/year WWTP % % Period months inlet outlet inlet outlet inlet outlet inlet outlet Northern SA 282529.0 34.0 11.3 9722 3198 67 5.50 0.40 1566 123 92 Central SA 354459.4 28.30 9.60 10022 3387 66 4.90 0.30 1745 95 95 South-West 81317.4 38.20 6.70 3106 545 82 6.10 0.30 494 28 94 WWTP Kurortny 2013 29734.8 24.40 0.20 726 6 99 3.70 0.30 109 10 91 district Kolpino 47440 34.0 9.50 1614 453 72 4.40 0.40 209 18 91 district Total 795481.0 31.67 9.54 25190 7589 70 5.18 0.35 4124 275 93 Northern SA 200673.3 35.2 10.70 7059 2151 70 5.40 0.30 1118 66 94 Central SA 242643.9 31.70 9.30 8013 2538 71 5.30 0.30 1337 68 95 South-West 59038.8 35.80 6.00 2116 355 83 5.70 0.30 335 19 94 WWTP Kurortny 20526.9 25.60 0.20 526 4 99 4.16 0.30 85 6 92 district 2014 (9 months 2014 (9 Kolpino 35530.1 35.40 9.70 1258 344 73 4.30 0.31 154 156 90 district Total 568413.0 33.38 9.17 18972 5212 73 5.33 0.31 3030 176 94 Furthermore in order to preserve the purity of the Baltic Sea in line with the HELCOM Recommendations and Russian standards, SUE “Vodokanal of St. Petersburg” systematically, continuously carries out works on reconstruction of WWTPs and introduction of new technological solutions to enhance the efficiency of treatment including at Northern and Central SA. Taking into account the above, we believe that all of the requirements for the deletion of “hot subspot” №18.1 are fulfilled and bearing in mind that activities on the construction of the main sewage collector are fully implemented and meet the criteria for deletion “hot spot” of he Baltic Sea Joint Comprehensive Environmental Action Program, please consider and take a decision on deletion of the “hot subspot” №18.1 - construction of sewers – from the HELCOM list. Appendix: 1. Nitrogen removal efficiency - on the WWTPs of SUE “Vodokanal of St.Petersburg” for 2013 and first 9 months of 2014 2. Phosphorous removal efficiency on the WWTPs of SUE “Vodokanal of St.Petersburg” for 2013 and first 9 months of 2014 Page 4 of 14 HOD 47-2014, 3-17 Appendix 1 Nitrogen removal efficiency on the WWTPs of SUE “Vodokanal of St.Petersburg” for 2013 and first 9 months of 2014 Northern SA Removal Effluent flow, Concentration, mg/l Amount, tons 2013 efficiency 103m3/month inlet outlet inlet outlet % January 27 921,0 38,0 12,1 1 061,0 337,8 68 February 19 812,0 42,0 11,8 832,1 233,8 72 March 21 658,0 45,5 10,3 985,4 223,1 77 April 23 968,0 36,7 11,5 879,6 275,6 69 May 22 430,0 33,1 11,6 742,4 260,2 65 June 18 200,0 41,4 9,2 753,5 168,0 78 July 20 562,0 27,4 11,0 563,4 226,2 60 August 21 189,0 33,7 10,5 714,1 222,5 69 September 19 855,0 33,6 10,7 667,1 212,4 68 October 25 770,0 33,3 11,8 858,1 304,1 65 November 31 546,0 26,2 12,2 826,5 384,9 53 December 29 618,0 28,3 11,8 838,2 349,5 58 Total 282 529,0 34,4 11,3 9 721,5 3 198,1 67 2014 January 23 954,0 36,7 11,7 879,1 280,3 68 February 20 539,0 33,7 11,8 692,2 242,4 65 March 28 566,0 31,6 11,5 902,7 328,5 64 April 24 195,0 37,0 10,9 895,2 263,7 71 May 25 217,0 33,8 10,5 852,3 264,8 69 June 21 125,0 35,6 10,2 752,1 215,5 71 July 20 462,0 36,3 9,9 742,8 202,6 73 August 17 219,3 34,6 9,5 595,8 163,6 73 September