WATER MANAGEMENT AND CHALANGES IN JŪRMALA JŪRMALAS ŪDENS

STORMWATER COLLECTION OUTLINES

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

Man- holes Gutter Pipe Diameter,mm lenght,m Total, m Kauguri Sloka Melluži Ķemeri Asari- Vaivari- Valteri Majori Dubulti Buļļciems Priedaine, Bražciems Dzintari Bulduri Pumpuri Lielupe Total STORMWATER SYSTEM DATA

ĶEMERI, SLOKA, KAUGURI, KAUGURCIEMS

VAIVARI, VALTERI, JAUNDUBULTI, DUBULTI, …

MAJORI, DZINTARI, LIELUPE, PRIEDAINE

Activity Financing Received From MunicipalityManagement Expenses Assigned Financing 2015, EUR Year 2013, EURYear 2014, EURTotal Year 2013, EUR Year 2014, EUR Total Drainage and Storm water System Management incl. Drainage Management incl. construction works Overhaul and reconstruction works Storm water System Management incl. construction works Overhaul and reconstruction works Drainage and Stormwater System Management Financing and Expenses

SANITARY SEWER Ķemeri, Sloka, Kauguri, Kaugurciems

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

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

SLOKA WWTP. Flows, Loads, Outlet requirements Inlet flows are as follows: Design year2015 Connected population Daily average flow9000 m3/d Design flow, qdim500 m3/h Max flow to pre-treatment1500 m3/h Max flow to main process750 m3/h Inlet loads are as follows: SS2320 kg/d256 mg/l COD4460 kg/d493 mg/l BOD kg/d236 mg/l Total-N480 kg/d53 mg/l Total-P 80 kg/d9 mg/l Required outlet concentrations SS 35 mg/l COD125 mg/l BOD5 25 mg/l Total-N 15 mg/l Total-P 2 mg/l

WATERSUPPLY Existing, In construction and Planned Network

Sloka, Kauguri construction works Construction works:  Water Supply Network – m;  Gravity Sewers – m;  Rising mains – 1 256m;  2 pumping stations

Melluži, Valteri construction works Construction works:  Water Supply Network – 13,3 km;  Gravity Sewers – 11,3 km;  Rising mains – 3 km;  2 pumping stations

Kaugurciems, Vaivari, Asari, Melluži construction works Construction works:  Water Supply Network – 24,1 km;  Gravity Sewers – 7,7 km;  Rising mains – 1 km;  2 pumping stations