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WATER MANAGEMENT AND CHALANGES IN JŪRMALA

This article discusses the water management system in Jūrmala, including stormwater collection and outlines of stormwater catchments and flows. It also covers the financing and expenses of the drainage and stormwater system, as well as the existing, in construction, and planned water supply network.

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WATER MANAGEMENT AND CHALANGES IN JŪRMALA

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  1. WATER MANAGEMENT AND CHALANGES IN JŪRMALA 17.03.2015 JŪRMALAS ŪDENS

  2. STORMWATER COLLECTION OUTLINES

  3. STORMWATER CATCHMENTS AND FLOWS: CATCHMENT AREA ESTIMATED – 2897 ha CALCULATED ANNUAL FLOW – 5 500 000 m3 (4200000 in summer) MINIMUM – 270 000 m3/month MAXIMUM – 700 000 m3/month OUTLETS – 24 (8 – Riga Gulf, 13 – Lielupe, 2 – Vecslocene, 1 – Veršupīte) Total pipeline length – 50,7 km Pumping Stations – 2 (Kauguri, Majori)

  4. STORMWATER SYSTEM DATA

  5. ĶEMERI, SLOKA, KAUGURI, KAUGURCIEMS

  6. VAIVARI, VALTERI, JAUNDUBULTI, DUBULTI, …

  7. MAJORI, DZINTARI, LIELUPE, PRIEDAINE

  8. Drainage and Stormwater System ManagementFinancing and Expenses 2013 - 2015

  9. SANITARY SEWERĶemeri, Sloka, Kauguri, Kaugurciems

  10. SANITARY SEWER Vaivari, Asari, Melluži, Jaundubulti, Valteri, Krastciems

  11. SANITARY SEWER Dubulti, Majori, Dzintari, Lielupe, Buļļciems, Priedaine

  12. SLOKA WWTP. Flows, Loads, Outlet requirements Inlet flows are as follows: Design year 2015 Connected population 32 440 Daily average flow 9000 m3/d Design flow, qdim 500 m3/h Max flow to pre-treatment 1500 m3/h Max flow to main process 750 m3/h Inlet loads are as follows: SS 2320 kg/d 256 mg/l COD 4460 kg/d 493 mg/l BOD5 2140 kg/d 236 mg/l Total-N 480 kg/d 53 mg/l Total-P 80 kg/d 9 mg/l Required outlet concentrations SS 35 mg/l COD 125 mg/l BOD5 25 mg/l Total-N 15 mg/l Total-P 2 mg/l

  13. WATERSUPPLY Existing, In construction and Planned Network

  14. Sloka, Kauguri construction works. 2013 - 2015 Construction works: • Water Supply Network – 19 407m; • Gravity Sewers – 16 541m; • Rising mains – 1 256m; • 2 pumping stations

  15. Melluži, Valteri construction works. 2014 - 2015 Construction works: • Water Supply Network – 13,3 km; • Gravity Sewers – 11,3 km; • Rising mains – 3 km; • 2 pumping stations

  16. Kaugurciems, Vaivari, Asari, Melluži construction works. 2014 - 2015 Construction works: • Water Supply Network – 24,1 km; • Gravity Sewers – 7,7 km; • Rising mains – 1 km; • 2 pumping stations

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