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Vreča, Polona; Nagode, Klara; Kanduč, Tjaša; Lojen, Sonja; Šlejkovec, Zdenka; Žigon, Stojan; Močnik, Nika; Bračič Železnik, Branka; Jamnik, Brigita; Žitnik, Marjetka (2020): Multi-isotope characterization of water resources for domestic supply in Ljubljana, Slovenia. PANGAEA, https://doi.org/10.1594/PANGAEA.914586

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Abstract:
The Ljubljansko polje and Ljubljansko barje aquifer system are the two most important groundwater sources for the Slovenia capital Ljubljana and its surroundings. The groundwater is pumped from 4 wellfields on Ljubljansko polje and one wellfield on Ljubljansko barje. In the central water distribution system some settlements are supplied with water from a single water plant, while some receive water from two or more facilities, depending on the volume of consumed water and pressure conditions. In Ljubljana, the water is prepared in a local water supply system without any technical water preparation procedures and is only chlorinated occasionally. Public Water Utility JP VODOVOD KANALIZACIJA SNAGA Ljubljana (JP VOKA SNAGA) monitors the microbiological and chemical parameters of drinking water at all stages. In 2018 started a new IAEA Coordinated Project F33024 "Use of Isotope Techniques for the Evaluation of Water Sources for Domestic Supply in Urban Areas" in which researchers from 16 countries worldwide participate. The Specific Slovenian Research Objectives in CRP are to improve the assessment of most important freshwater resources for domestic supply using environment isotopes, to select significant environmental isotopes for future monitoring that will enable better understanding and interpretation of water interactions important for water managers of JP VOKA SNAGA to predict the availability and quality of freshwater resources for Ljubljana domestic water supply and to develop together with JP VOKA SNAGA and CRP project partners guidelines on integrating environmental isotopes to assist water managers in the planning, designing, and management of freshwater resources for domestic supply in urban environments. Based on the synthesis of the results from previous investigations in the area and the experiences of JP VOKA SNAGA, 97 sampling sites in the Ljubljana water supply system were selected. Sampling sites were selected according to the water supply area and according to the type of sampling sites. Selection according to the type of sampling site in the water supply system includes 6 different types: wells (VD; 44 samples), joint exits from water pumping station (ZV; 7), reservoirs (VH; 23), water treatment locations (PV; 2), drinking water fountains (PIT; 13) and water tap in public buildings (PJ). Additionally, 10 sampling sites were selected including water taps in 2 public and 8 private buildings (PP) which are not included in regular monitoring of JP VOKA SNAGA. Selection according to the water supply area includes 8 different areas: 4 main water fields: Kleče (A), Hrastje (B), Brest (C), Jarški prod (D), Šentvid (E), and 4 areas where the water is mixed from two or three different supply areas: Hrastje/Jarški prod (F), Kleče/Brest (G), Kleče/Hrastje/Jarški prod (H) and Kleče/Hrastje/Brest (I2). Finally, sampling sites on River Sava (R: Brod, Črnuče, and Šentjakob) and at the outflow from wastewater treatment plant (CČN) were also selected. Sampling was performed between 06.09.2018 and 29.11.2018. This database is summarized results of in-situ measurements (water temperature and electrical conductivity) and laboratory analysis (pH, total alkalinity, the concentration of total arsenic in water, isotope composition of oxygen, hydrogen and carbon in dissolved inorganic carbon).
Keyword(s):
arsenic; domestic water supply system; isotope composition; isotopes; water chemistry; δ13CDIC; δ18O; δ2H
Related to:
Nagode, Klara; Kanduč, Tjaša; Bračič Železnik, Branka; Jamnik, Brigita; Vreča, Polona (2022): Multi-Isotope Characterization of Water in the Water Supply System of the City of Ljubljana, Slovenia. Water, 14, 2064, https://doi.org/10.3390/w14132064
Coverage:
Median Latitude: 46.055867 * Median Longitude: 14.513406 * South-bound Latitude: 45.959079 * West-bound Longitude: 14.411136 * North-bound Latitude: 46.136299 * East-bound Longitude: 14.734464
Date/Time Start: 2018-09-06T00:00:00 * Date/Time End: 2018-11-29T00:00:00
Event(s):
Ljubljana_groundwater * Latitude: 46.055867 * Longitude: 14.513406 * Date/Time Start: 2018-09-06T00:00:00 * Date/Time End: 2018-11-29T00:00:00 * Location: Ljubljana, Slovenia * Method/Device: Multiple investigations (MULT)
Parameter(s):
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1582 data points

Data

Download dataset as tab-delimited text — use the following character encoding:


Location
(WATER SUPPLY AREA)

Location
(CODE OF WATER SUPPLY AREA)

No

Site
(SAMPLING SITE NAME)

Loc type
(TYPE OF SAMPLING SITE)

Type
(CODE FOR TYPE OF SAMPLING SITE)

Date/Time

Latitude

Longitude
10 
Sample ID
11 
Temp [°C]
12 
Cond electr [µS/cm]
13 
pH
14 
AT [mmol(eq)/l]
(Titration)
15 
δ18O H2O [‰ SMOW]
(VSMOW, Mass spectrometry)
16 
δD H2O [‰ SMOW]
(VSMOW, Mass spectrometry)
17 
δ13C DIC [‰ PDB]
(VPDB, Mass spectrometry)
18 
As [µg/l]
KleceA2Pitnik-13, Cankarjev vrhdrinking water fountainPIT2018-10-1846.05553475014.476905560I18-088914.8495.67.574.61-9.13-61.3-12.9<0.20
KleceA27Pitnik-38, Konzorcijdrinking water fountainPIT2018-10-1846.05100697014.502780610I18-089314.0509.97.594.80-9.11-61.3-12.9<0.20
KleceA34Pitnik-31, PST Zaledrinking water fountainPIT2018-10-2346.07330513014.531035530I18-093613.9463.67.594.49-9.20-61.2-12.8<0.20
KleceA15Pitnik-15, Ljubljanski grad-dvoriscedrinking water fountainPIT2018-10-2446.04902715014.508975120I18-093712.3486.67.844.65-9.16-61.0-13.5<0.20
KleceA33Pitnik-5, Tivoli - igriscedrinking water fountainPIT2018-10-2446.05268403014.495334840I18-093814.0502.17.534.81-9.15-60.9-13.7<0.20
KleceA21Pitinik-28, PST-Kmecka potdrinking water fountainPIT2018-10-2446.06801683014.467623130I18-093915.2515.37.734.93-9.14-61.3-13.4<0.20
KleceA58ZV Klece 400/3Joint exits from water pumping stationZV2018-10-0846.08630052014.499723580I18-086712.9442.07.644.25-9.22-61.4-12.6<0.20
KleceA59ZV Klece 400/8Joint exits from water pumping stationZV2018-10-0846.08562248014.494880640I18-086812.4497.97.774.67-9.19-60.8-13.2<0.20
KleceA56ZV Klece 325/12Joint exits from water pumping stationZV2018-10-0846.08627279014.499555730I18-086911.8503.07.844.92-9.13-61.0-12.8<0.20
KleceA60ZV Klece 300/14Joint exits from water pumping stationZV2018-10-0846.08715130014.505030610I18-087011.9450.67.874.42-9.16-60.4-12.3<0.20
KleceA57ZV Klece 700/3Joint exits from water pumping stationZV2018-10-0846.08656228014.499915180I18-087112.5464.07.764.44-9.23-61.2-12.0<0.20
KleceA37VH Debeli hrib-desna celicareservoarVH2018-09-2446.06578018014.482212310I18-081712.1508.07.724.90-9.11-60.4-12.5<0.10
KleceA38VH Debeli hrib-leva celicareservoarVH2018-09-2446.06578018014.482212310I18-081812.1503.97.724.92-9.10-60.3-12.6<0.10
KleceA36VH Roznik-leva celicareservoarVH2018-10-1046.05339083014.490352980I18-087811.6462.47.614.42-9.19-61.5-12.0<0.20
KleceA35VH Roznik-desna celicareservoarVH2018-10-1046.05339083014.490352980I18-087911.6463.27.614.32-9.19-61.2-11.9<0.20
KleceA39VH GradreservoarVH2018-11-0546.04841544014.509006360I18-097012.7439.37.954.61-9.13-61.5-13.0<0.20
KleceApipa 2water tap (private building)PP2018-10-1946.05631322014.504309910I18-08957.854.65-9.15-61.4-12.4<0.20
KleceApipa 9water tap (private building)PP2018-10-1946.06819171014.494353890I18-09027.604.88-9.10-60.9-13.2<0.20
KleceA19Vrtec Pod Gradom, enota Prulewater tap (public building)PJ2018-10-1546.04325686014.510434410I18-088214.9487.17.654.55-9.13-61.3-12.7<0.20
KleceA19Vrtec Pod Gradom, enota Prulewater tap (public building)PJ2018-11-2846.04325686014.510434410I18-101013.1482.57.674.74-9.16-60.9-11.90.16
KleceA45VD Klece-7wellVD2018-09-0646.08614021014.495987990I18-077811.1394.07.824.06-9.32-62.1-9.4<0.10
KleceA46VD Klece-8awellVD2018-09-0646.08596477014.494968040I18-077911.2452.27.814.32-9.27-61.7-10.3<0.10
KleceA47VD Klece-9wellVD2018-09-0646.08576945014.493521560I18-078011.6499.07.665.42-9.24-61.1-11.0<0.10
KleceA44VD Klece-6wellVD2018-09-1346.08633465014.497240530I18-079311.3424.47.623.86-9.17-61.7-10.5<0.10
KleceA49VD Klece-11wellVD2018-09-1346.08539840014.491003460I18-079412.1559.17.665.24-9.04-60.0-12.5<0.10
KleceA48VD Klece-10wellVD2018-09-1946.08558385014.492243110I18-080211.8546.37.695.15-9.11-60.8-12.5<0.20
KleceA50VD Klece-12wellVD2018-09-1946.08521289014.489750880I18-080311.6483.67.894.67-9.26-61.5-11.7<0.20
KleceA51VD Klece-13wellVD2018-10-1046.08718154014.503698430I18-087611.3460.47.524.47-9.18-61.0-12.4<0.20
KleceA52VD Klece-14wellVD2018-10-1046.08730404014.504977520I18-087711.3449.87.614.37-9.17-60.9-12.3<0.20
KleceA53VD Klece-15wellVD2018-10-2546.09097452014.492491280I18-094011.5494.47.535.07-9.08-60.7-13.6<0.20
KleceA54VD Klece-16wellVD2018-10-2546.09116007014.493756930I18-094111.2439.37.774.49-9.13-61.2-13.2<0.20
KleceA55VD Klece-17wellVD2018-10-2546.09079797014.491225570I18-094211.5545.67.515.32-9.12-60.8-14.1<0.20
KleceA41VD Klece-2wellVD2018-11-2146.08676563014.501154740I18-099111.1438.87.564.29-9.23-61.6-12.1<0.20
KleceA42VD Klece-3wellVD2018-11-2146.08656228014.499915180I18-099211.1467.87.574.97-9.14-60.6-12.6<0.20
KleceA43VD Klece-4wellVD2018-11-2146.08649354014.498596840I18-099310.9401.67.673.93-9.32-61.8-11.6<0.20
HrastjeB2VD Hrastje-1awellVD2018-09-2446.06983132014.562774960I18-081913.1620.27.524.78-8.93-59.5-13.2<0.10
HrastjeB3VD Hrastje-2wellVD2018-09-2446.07129370014.561664640I18-082012.7600.07.655.06-8.99-59.6-13.3<0.10
HrastjeB4VD Hrastje-2awellVD2018-09-2446.07183532014.562125760I18-082112.8593.87.575.06-8.99-59.7-13.2<0.10
HrastjeB5VD Hrastje-3wellVD2018-09-2446.07217475014.561476710I18-082212.6586.87.535.07-9.01-59.9-13.1<0.10
HrastjeB6VD Hrastje-4wellVD2018-09-2446.06944780014.561731320I18-082313.1623.97.554.83-8.93-59.3-13.4<0.10
HrastjeB7VD Hrastje-5wellVD2018-09-2446.07310918014.565864810I18-082412.7584.87.555.02-9.02-60.1-13.0<0.10
HrastjeB8VD Hrastje-6wellVD2018-09-2446.07220119014.566065810I18-082512.8593.97.545.88-8.98-59.5-13.2<0.10
HrastjeB9VD Hrastje-7wellVD2018-09-2446.07132017014.566266590I18-082612.8609.27.514.82-8.95-59.8-13.2<0.10
HrastjeB10VD Hrastje-8wellVD2018-09-2446.07043916014.566467370I18-082712.8614.07.614.73-8.93-59.5-13.1<0.10
BrestC23Pitnik-29, Pod gabridrinking water fountainPIT2018-10-0946.03222158014.490882680I18-087313.3530.37.535.86-9.33-61.8-13.0<0.20
BrestC24Pitnik-27, PST, Pri Malem grabnudrinking water fountainPIT2018-10-1846.03482215014.467152680I18-089012.8528.07.554.49-9.30-61.9-13.40.19
BrestC34ZV Brest po dezinfekcijiJoint exits from water pumping stationZV2018-10-1745.96126321014.492485080I18-088311.1515.07.885.58-9.34-61.8-13.2<0.20
BrestC33ZV BrestJoint exits from water pumping stationZV2018-10-1745.96083235014.492721230I18-088611.2513.37.455.58-9.34-61.9-13.60.12
BrestC19VH PodsmrekareservoarVH2018-11-0746.03680850014.427484060I18-097214.2520.87.576.02-9.29-61.9-13.9<0.20
BrestC20VH RadnareservoarVH2018-11-0746.03365752014.411135620I18-097313.6526.97.605.79-9.31-62.3-13.60.29
BrestCpipa 10water tap (private building)PP2018-10-1946.03590195014.499130210I18-09037.705.62-9.34-62.2-13.40.15
BrestC15Osnovna sola Brezovicawater tap (public building)PJ2018-11-1346.01687243014.412049330I18-098315.7538.87.485.98-9.29-61.0-14.6<0.20
BrestC36PV Brest-11 po dezinfekcijiwater treatment locationPV2018-10-1745.96218529014.499611520I18-088411.5613.67.596.58-9.16-60.7-15.0<0.20
BrestC35PV Brest-11water treatment locationPV2018-10-1745.96232896014.499545730I18-088711.5612.17.396.64-9.16-61.1-14.9<0.20
BrestC28VD Brest-5wellVD2018-09-1345.96033270014.491642040I18-078810.8553.08.336.12-9.34-61.4-11.90.21
BrestC29VD Brest-6wellVD2018-09-1345.96047041014.492260070I18-078910.9555.57.936.24-9.34-61.8-12.60.18
BrestC30VD Brest-7wellVD2018-09-1345.96060810014.492878090I18-079011.2554.28.126.07-9.37-62.4-12.3<0.10
BrestC31VD Brest-8wellVD2018-09-1345.96074580014.493496120I18-079111.5602.88.336.67-9.21-60.6-14.0<0.10
BrestC24VD Brest-2awellVD2018-09-1345.96016802014.493062720I18-079211.4427.27.874.61-9.53-63.6-10.6<0.10
BrestC26VD Brest-4wellVD2018-10-1745.96006948014.491128380I18-088511.3547.67.566.04-9.26-60.9-13.70.15
BrestC32VD Brest-9wellVD2018-11-1545.96103012014.494719210I18-098611.9660.07.227.37-9.03-60.5-15.3<0.20
BrestC21VD Brest-1wellVD2018-11-1945.95907913014.488969980I18-098713.2506.57.385.54-9.01-57.8-13.5<0.20
BrestC23VD Brest-2wellVD2018-11-1945.95956311014.490565320I18-098812.9505.57.366.16-9.05-59.7-13.60.53
BrestC25VD Brest-3wellVD2018-11-1945.95982409014.490575850I18-098912.8510.77.375.55-9.10-59.6-13.60.23
BrestC27VD Brest-4awellVD2018-11-1945.96014972014.490959930I18-099010.8436.07.634.88-9.48-63.1-11.90.29
Jarski prodD18VH TaborreservoarVH2018-11-0546.10241814014.521502740I18-096913.3430.17.724.15-9.33-62.5-12.80.18
Jarski prodD17VH GmajnareservoarVH2018-11-0646.11210011014.532558040I18-097113.1459.67.804.56-9.23-61.7-13.2<0.20
Jarski prodD19VH HribreservoarVH2018-11-1346.11285570014.685986110I18-098415.1434.87.934.29-9.26-62.2-12.40.23
Jarski prodD21VH SenozetireservoarVH2018-11-1346.09329995014.734464140I18-098515.3457.07.874.64-9.24-61.8-13.0<0.20
Jarski prodD20VH Vinje dolinareservoarVH2018-11-2946.11686767014.679119230I18-101411.2434.57.664.34-9.31-61.5-11.6<0.20
Jarski prodDpipa 3water tap (public building)PJ2018-10-1946.09453833014.597085530I18-08967.654.99-9.23-62.3-13.0<0.20
Jarski prodD2Vrtec Crnuce, enota Gmajnawater tap (public building)PJ2018-11-2846.10678287014.528243450I18-101112.1518.07.524.63-9.15-61.5-12.4<0.20
Jarski prodD14VD Jarski prod-1wellVD2018-09-1846.08691966014.546994020I18-079911.5365.27.983.44-9.32-61.4-10.0<0.20
Jarski prodD15VD Jarski prod-2wellVD2018-09-1846.08754089014.549381230I18-080011.3427.07.834.36-9.27-61.4-11.5<0.20
Jarski prodD16VD Jarski prod-3wellVD2018-09-1846.08832428014.551831850I18-080111.7514.78.085.10-9.26-61.6-12.1<0.20
SentvidE17VH Przanj-levoreservoarVH2018-09-1746.08717215014.457870570I18-079713.2544.28.185.07-8.85-58.3-12.3<0.20
SentvidE18VH Przanj-desnoreservoarVH2018-09-1746.08722767014.458193300I18-079813.2544.08.054.89-8.87-58.8-12.4<0.20
SentvidE22VH Tosko celoreservoarVH2018-10-1746.07930852014.430084640I18-088817.4554.27.845.02-8.82-59.0-13.2<0.20
SentvidE21VH SmartnoreservoarVH2018-11-1246.12866480014.462693300I18-097913.2552.47.755.13-8.80-59.1-13.3<0.20
SentvidE20VH Rasica-desnoreservoarVH2018-11-1246.13624601014.512228920I18-098014.2558.97.825.12-8.97-58.1-14.4<0.20
SentvidE19VH Rasica-levoreservoarVH2018-11-1246.13629933014.512073140I18-098114.3559.97.725.30-8.76-58.7-13.1<0.20
SentvidEpipa 8water tap (private building)PP2018-10-1946.09337536014.472203990I18-09017.734.91-8.84-58.9-13.6<0.20
SentvidE9Osnovna sola Dravljewater tap (public building)PJ2018-11-2846.08014562014.477398020I18-101212.1547.07.445.02-8.83-58.1-12.7<0.20
SentvidE23VD Sentvid-1awellVD2018-09-1046.10186177014.480453200I18-078111.6529.27.465.08-8.96-59.5-11.2<0.10
SentvidE24VD Sentvid-2awellVD2018-09-1046.10136424014.481854770I18-078211.7535.08.174.83-8.90-58.8-11.3<0.10
SentvidE25VD Sentvid-3wellVD2018-09-1046.10080296014.483088780I18-078311.7559.08.024.91-8.78-58.4-11.7<0.10
Hrastje/Jarski prodF14Pitnik -32, PST, Litijska c.drinking water fountainPIT2018-10-0946.04528136014.564014380I18-087516.3484.07.774.55-9.15-60.8-12.1<0.20
Hrastje/Jarski prodF22Pitnik-34, PST, Leskovskova ulicadrinking water fountainPIT2018-10-1846.06684574014.560846540I18-089213.0532.87.686.88-9.09-61.2-12.8<0.20
Hrastje/Jarski prodFpipa 6water tap (private building)PP2018-10-1946.05307842014.560619160I18-08997.684.65-9.18-61.5-12.8<0.20
Hrastje/Jarski prodF10Vrtec Miskolin, enota Novo Poljewater tap (public building)PJ2018-11-2246.06445483014.580771180I18-099513.9454.17.644.41-9.23-61.3-12.7<0.20
Klece/BrestG20Pitnik-30, PST, Cesta na Brdodrinking water fountainPIT2018-10-1846.04684988014.466675680I18-089115.1528.87.614.97-9.19-61.7-13.0<0.20
Klece/BrestG10VH BrdoreservoarVH2018-11-1346.05151134014.444067750I18-098213.3496.07.604.96-9.13-61.4-13.1<0.20
Klece/BrestGpipa 1water tap (private building)PP2018-10-1946.04342804014.483789960I18-08947.694.74-9.13-61.6-13.0<0.20
Klece/BrestGpipa 4water tap (public building)PJ2018-10-1946.04209482014.487458850I18-08977.794.79-9.13-62.0-12.9<0.20
Klece/BrestG1Dom starejsih obcanov, enota Bokalciwater tap (public building)PJ2018-11-2946.05095485014.448079360I18-101310.3501.87.724.88-9.16-61.0-12.2<0.20
Klece/Hrastje/Jarski prodH7Pitnik-25 Golovecdrinking water fountainPIT2018-10-0946.04339811014.529142660I18-087413.9547.97.754.91-9.06-60.3-13.2<0.20
Klece/Hrastje/Jarski prodHpipa 7water tap (private building)PP2018-10-1946.07471426014.541301580I18-09007.574.47-9.14-61.3-12.7<0.20
Klece/Hrastje/Jarski prodH4Osnovna sola Bozidarja Jakcawater tap (public building)PJ2018-11-2246.04902084014.546824390I18-099415.1459.27.634.45-9.18-61.0-12.6<0.20
Klece/Hrastje/BrestI225Pitnik -33, PST, Ursicev stradondrinking water fountainPIT2018-10-0946.02612333014.514227590I18-087217.2542.17.765.93-9.30-61.7-12.9<0.20
Klece/Hrastje/BrestI213VH separjev hribreservoarVH2018-11-0845.99746106014.562348490I18-097414.2504.98.425.10-9.21-61.4-13.50.28
Klece/Hrastje/BrestI215VH OrlereservoarVH2018-11-0846.01457081014.570827950I18-097614.6506.87.835.12-9.24-61.3-13.4<0.20
Klece/Hrastje/BrestI214VH Srednja vasreservoarVH2018-11-0846.00542368014.564610170I18-097714.2508.07.745.21-9.21-61.4-13.4<0.20
Klece/Hrastje/BrestI2pipa 5water tap (private building)PP2018-10-1946.03748883014.516686510I18-08987.554.74-9.18-61.4-13.10.39
Klece/Hrastje/BrestI26Vrtec skofljicawater tap (public building)PJ2018-11-0845.98662890014.574631240I18-097515.1509.17.465.17-9.27-61.1-14.00.15
outflowCCN Zalogcentral waste water treatment plant - outflowCCN2018-09-1246.06874514014.624547870I18-078421.71086.09.855.91-8.68-58.2-11.90.12
riverSava 1 - sentjakobriverR2018-09-1246.08470129014.586217520I18-078515.0345.08.173.33-9.40-63.0-8.00.14
riverSava 2 - CrnuceriverR2018-09-1246.10309305014.517228420I18-078615.1345.08.233.36-9.39-62.4-9.20.12
riverSava 3 - BrodriverR2018-09-1246.11615097014.474743220I18-078715.1343.08.243.27-9.45-63.3-7.70.16