MONITORING OF GROUNDWATER GEOCHEMISTRY IN THE RIUTTA AREA.

Geological Survey of Finland REPORT Eastern Finland Unit Dnro K555/52/2006 & K129/53/2004 Kuopio 24.10.2008 Markku Tenhola Public 1.1.2013 139/2013 AREVA Resources Finland Oy Tapani Hyysalo Aleksanterinkatu 17 00100 Helsinki MONITORING OF GROUNDWATER GEOCHEMISTRY IN THE RIUTTA AREA. Ref. Discussions in the Geological Survey of Finland at Kuopio (26.02.2008) between Erkki Vanhanen (AREVA), Laura Lauri (AREVA), Markku Tenhola (GTK) and Olli Äikäs (GTK). Order 0819 by AREVA Resources Finland Oy, 19.5.2008. Statement Groundwater samples (8 samples) collected from four monitoring wells at Riutta, municipalities of Eno and Kontiolahti. Geophysical determinations and chemical analyses of the water samples. All geodata e.g. soil types obtained in the installation of monitoring wells by Destia Oy. Background The Geological Survey of Finland (GTK) has drawn up an environmental baseline study for the mining company AREVA NC (COGEMA) in the municipalities of Eno and Kontiolahti in 2006 (Tenhola et al., 2006). In this study bedrock groundwater samples were taken from one drill hole drilled in 1988 by GTK. This drill core (R326) sampled in 2006 did not penetrate high grade uranium mineralization. The results showed that heavy metal and uranium concentrations and total alpha and radium concentrations were low in the bedrock groundwater, as well as in other types of groundwater samples collected in the area In 2007 the earlier study was replenished by two groundwater samples taken from one drill hole (R324). This drill hole was known to penetrate high grade uranium mineralization (Tenhola, 2008). In the study in 2007 two water samples were found to be rich in uranium (partial analyses 432-459 µg/l, and total analysis 1280-2060 µg/l), and also total alpha activities were high (47-66 Bq/l). These water samples were not clear but grayish, possible due to silt material. In summer 2008 the Division of Land Use and Environment of the GTK carried out (as ordered by AREVA; order 0829, 5.6.2008) a comprehensive sampling program comprising groundwater studies in three drill holes (R324, R325 and R326) in the Unimonttu area. Preliminary results of

Geological Survey of Finland Eastern Finland Unit 2 this study showed that uranium concentrations in the drill hole R324 were much lower (below 100 µg/l), than in 2007 (Kaija et al., 2008 in preparation). The present study is a continuation for the previous geochemical studies in 2006 and 2007 made by GTK, and its aim is to create the groundwater monitoring system that makes possible to observe the chemical changes in the composition of groundwater occurring in the Quaternary valley filled with sand and till of the Kuusoja basin. For this purpose four monitoring wells were installed southwest from the Riutta uranium occurrences in summer 2008 (Figure 1). These wells were dug into the overburden (dug well). The sampling can be repeated in certain time interval that was considered to be important because AREVA has started uranium prospecting in the area. Sampling and Quaternary deposits Groundwater samples were collected from four monitoring wells (Figure 1). The groundwater pipes were installed between 26-29.5.2008, and the sampling was carried out on 01.07.2008. The monitoring wells were installed by Destia Oy, which is the leading Finnish infrastructure service company. Drilling data comprises soil types from different depths, total lengths of the perforated drain pipes and sealed pipes as well as coordinates (Appendices 1-4). Perforated pipe was used because it makes possible to get the water sample from the groundwater surrounding the drill hole. All the pipes were drilled down to the bedrock. Soil and bedrock (rock powder) samples were collected from each stratigraphic unit. The drilling sites and preliminarily also the sample bags were measured at the site for their radioactivity, but enhanced gamma activity higher than the local background was not found. Later the sample bags were measured separately for their gamma activity at the GTK office in Kuopio, and again significant activity above the background was not found. Water samples were taken from the surface and deeper parts of the water column. The pump chamber was lowered to a wanted depth and the pump lifted the water to the surface (Figure 2). Total number of samples was 8. Monitoring well PVP 1 (Figure 1) is situated close to the GTK s drilling field of 1988. Total length of the pipe was 32 m and the length of the perforated drain pipe was 14 m (Appendix 1). Water samples were taken from the depths of 7.5 and 11.5 m. The groundwater table was at the level of 5.5 m, and thus the upper sample was taken 2 m below the water surface. The lowest sample had to be taken only from the depth of 11.5 m, because clear water was not possible to get from deeper parts, in spite of a long pumping time. The water from the upper part was very clear, whereas the deeper sample was slightly grayish (not clear). Determinations of ph, redox, electric conductivity, oxygen concentrations were made from the depths of 7.5 and 11.5 m (Table 1). Soil types are mainly gravel, but 7 m thick silt layer was found in the depths of 16-23 m. Observations of soil types were made within the drillings (Table 2). Bedrock sample got in the drilling was a highly quarzitized mafic rock. Monitoring well PVP 2 is situated near the end (turning point) of the forest road of Kasikangas in the lower part of a slope near the Kuusoja river. Total length of the pipe was 25.3 m from which perforated drain pipe was 21 m (Appendix 2). The samples were collected from the depths of 6 and 21 m. Like above, the upper water sample was very clear and the lower one slightly grayish.

Geological Survey of Finland Eastern Finland Unit 3 Groundwater level was at the depth of 4.2 m. Geophysical measurements were made from the corresponding depths. Soil types observed were stony and sandy gravel and sand (Table 1, Appendix 2). Bedrock at the bottom of the drill hole was quartzite. PVP 3 is situated near the road to Pyymäki. The groundwater reflects the drainage area of the mire Matarinsuo. A radioactive spring is situated in the northwestern part of the mire (Äikäs et al., 1994). Total length of the tube was 33 m and perforated drain pipe 28 m (Table 1, Appendix 3). Groundwater surface was in the depth of 8.8 m. Water samples were collected from the depths of 9 and 18 m. Also, at this point the upper sample was very bright and the deeper one just a little grayish. Till was found in the upper part of the soil (0-3 m) and in the depth of 19-26 m. Other soil types are mainly sand and gravel (Appendix 3). At the drilling site the bedrock was quartzite..

Geological Survey of Finland Eastern Finland Unit 4 Figure 1. Sampling sites of the monitoring wells PVP 1 PVP 4 and Quaternary deposits. Also, northern part of the groundwater reservoir is presented. Figure 2. Monitoring well PVP 1 and sampling equipments. Monitoring well PVP 4 is situated over till in the northern part of mire Sorsansuo. It represents the drainage area of the eastern and northern part of the Karsikkokangas groundwater reservoir. The monitoring point is situated close to a nesting site of Great Crested Newt, a rare and protected species of salamander. The site is under process of conservation by the North Karelia Regional Environment Centre. The total length of this tube is 15 m (perforated drain pipe 12 m), and the samples were taken from the depths of 5 and 14 m (Table 1, Appendix 4). Between 0-7 m the soil type is gravel and silt and in lower parts till and sandy till (7-11.5 m). Bedrock at the sampling site was quartzite. Chemical analysis The filtrated (0.45 μm) 100 ml water samples were preserved in the field by adding 0.5 ml suprapur nitric acid into the bottle. The samples were analysed using ICP-MS method (partial analyses, dissolved elements). Anion determinations were made from untreated 500 ml water sample using IC technique. For total alpha determinations one untreated 100 ml polyethylene bottle was taken and for radon determinations a special type glass bottle (12 ml). Chemical

Geological Survey of Finland Eastern Finland Unit 5 analyses were made in the accredited laboratory of Labtium in Otaniemi. Total alpha activity, radium-226 and radon-222 were determined in STUK. Results of the chemical analyses are presented in Appendices 5 and 6. Table 1. Soil types observed in the drillings of the monitoring wells. See also Appendices 1-4. PVP 1 PVP 2 Depth [m] Soil type Depth [m] Soil type 0-1.50 Gravel 0-4.00 Stony gravel 1.50-4.50 Stony gravel 4.00-6.00 Sandy gravel 4.50-10.0 Gravel 6.00-13.00 Sand 10.0-12.0 Sandy gravel 13.00-24.80 Fine sand 12.0-14.0 Sandy gravel 24.80-28.06 Bedrock (quartzite) 14.0-16.0 Gravel 16.0-23.0 Silt 23.0-28.0 Till 28.0-31.4 Bedrock (mafic volcanite) PVP 3 PVP 4 Depth [m] Soil type Depth [m] Soil type 0-3.00 Till 0-6.50 Gravel 3.00-4.50 Sandy gravel 6.50-7.00 Silt 4.50-5.50 Sand 7.00-9.00 Till 5.50-6.00 Silt 9.00-11.5 Sandy till 6.00-7.50 Gravel 11.5-14.7 Bedrock (quartzite) 7.50-11.0 Sandy gravel 11.0-13.0 Gravel 13.0-15.0 Sand 15.0-17.0 Sand 17.0-19.0 Sand 19.0-26.0 Till 26.0-32.0 Stony till 32.0-35.9 Bedrock (quartzite) Results In the monitoring wells ph values vary between 5.47 and 6.33 (Table 2). The values are quite close to each other in the samples taken from the same monitoring well, whereas differences exist between different wells. Lowest ph values (5.44-5.77) were measured in the sampling point PVP 4. ph values in the groundwater in diamond drill holes are much higher varying between 7.20-7.77. The results are in harmony with the nation-wide median values in Finland; in dug wells the median ph is 6.4 and in wells drilled into the bedrock the median is 7.2 (Lahermo et al., 2002).

Geological Survey of Finland Eastern Finland Unit 6 Values of conductivity vary between 18-80 µs/cm (Table 2). No clear differences exist between the samples from different depths. However, in PVP 1 the values are greater in the surface (80 µs/cm) than in the lower part (34 µs/cm). Like ph values, also the values of conductivity are higher in the wells drilled into the bedrock than in the dug wells. Especially in 2007 the EC values were high due to dissolved material in water (muddy samples). The amounts of oxygen in water varied greatly between the monitoring wells. Values of oxygen saturation degree were very low (0.02-2.09 mg/l) in the samples taken from the site PVP 1 (Table 2). Also, a very low O 2 concentration (0.12 %) was measured in the lowest sample of PVP 1. In PVP 3 the water was very oxygen-rich (83-89 %). Table 2 Sampling depth, temperature, ph, electric conductivity (EC, mv in 25 o C), redox, oxygen concentration (mg/l) and oxygen saturation degree (%) in the four groundwater monitoring wells at Riutta. Also determinations in 2007 from diamond drill holes are presented (Tenhola, 2007). Measurements were made in field. Sampling was carried out at the beginning of July 2008. Sampling sites are presented in Fig. 1. Site/sample code Depth Temp ph EC Redox O 2 O 2 saturation Water Visual remarks m o C µs/cm mv % degree mg/l level m DUG WELLS Site PVP 1-2008 Riutta-08/GTK-11 7.5 18.5 6.26 80.0 20.6 22.4 2.09 5.5 Clear Riutta-08/GTK-12 11.5 4.31 6.14 34.0 25.1 0.12 0.02 5.5 Slightly grayish Site PVP 2-2008 Riutta-08/GTK-13 6.0 11.8 6.33 58.8 15.9 14.6 1.58 4.2 Clear Riutta-08/GTK-14 21 12.6 6.31 63.4 17.0 6.66 0.71 4.2 Slightly grayish Site PVP 3-2008 Riutta-08/GTK-15 9.0 9.36 5.89 24.0 39.9 82.7 9.47 8.8 Clear Riutta-08/GTK-16 18 8.96 5.80 21.0 44.9 89.1 10.3 8.8 Slightly grayish Site PVP 4-2008 Riutta-08/GTK-17 5.0 9.87 5.47 18.0 64.0 50.3 5.69 2.8 Clear Riutta-08/GTK-18 14 9.24 5.77 27.0 46.8 53.6 6.16 2.8 Slightly grayish WELLS DRILLED INTO HE BEDROCK Sampling in 2006 Drill hole R326 9.0 11.4 7.20 53.2 79.7 77.2 8.85 7.0 Clear Sampling in 2007 Drill hole R324 14 7.6 7.27 161 104 15.1 1.82 5.8 Muddy (gray) Drill hole R324 21 6.40 7.77 158 87.4 20.7 2.55 5.8 Muddy (gray) Uranium concentrations are low (0.05-1.14 µg/l) in all groundwater samples (Table 3). Highest concentrations (0.76 and 1.14) µg/l were found in the sampling site PVP 4. Here the concentrations are many times higher than in the other monitoring wells. Although, uranium concentrations were slightly elevated in PVP 4, the concentrations are far below the limit (15

Geological Survey of Finland Eastern Finland Unit 7 μg/l) for drinking water recommended by the World Health Organization (WHO). See the footnote of the Table 3. Like uranium, also As, Co, Cu, Ni and V concentrations are higher in PVP 4 than in other he monitoring wells. Reason for this may be, that great part (7-11.5 m) of the perforated drain pipe is surrounded by till. Because heavy metal concentrations are usually higher in till than in washed and sorted soil types, the chemical composition of till may be reflected in the composition of groundwater. Also, the drainage area around the monitoring well is till (see Fig. 1). Sulphate concentrations are 2-4 times lower in the Riutta area than in Finland in average. Table 3. Element concentrations in groundwater samples collected from monitoring wells in the Riutta area. Sampling sites are presented in Fig. 1. Other elements analysed are presented in Appendix 5. Median values of dugwells in Finland are after Lahermo et al. (2002). Site/ sample code As Co Cu Mo Ni Th U V Zn Fe 2- SO 4 µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l mg/l mg/l DUG WELLS Site PVP 1 Riutta-08/GTK-11/7.5 m 0.15 1.75 3.42 0.22 1.18 0.10 0.21 0.15 12.2 0.15 4.97 Riutta-08/GTK-12/11.5 m 0.29 2.00 3.31 0.21 1.75 0.21 0.25 0.30 11.5 0.26 4.96 Site PVP 2 Riutta-08/GTK-13/6 m 2.95 1.34 0.89 0.24 2.72 0.05 0.11 0.12 23.2 2.70 5.03 Riutta-08/GTK-14/21 m 3.02 1.43 1.40 0.33 3.45 0.10 0.15 0.19 32.0 2.65 5.02 Site PVP 3 Riutta-08/GTK-15/9 m 0.08 2.24 0.70 0.21 4.36 <0.01 0.05 0.07 22.5 0.04 2.64 Riutta-08/GTK-16/18 m 0.10 2.53 0.55 0.24 4.35 0.01 0.05 0.05 21.9 0.03 2.67 Site PVP 4 Riutta-08/GTK-17/5 m 3.02 2.35 16.0 0.34 6.12 0.12 0.76 0.19 18.3 0.18 2.07 Riutta-08/GTK-18/14 m 4.36 3.09 17.6 0.63 6.35 0.21 1.14 0.34 21.0 0.28 2.23 Median in Finland 1) 0.14 0.09 2.49 0.50 0.84 <0.02 0.09 0.20 10.4 <0.03 10.4 Quality requirements 2) 10 2000 20 15 3) 0.2 250 1) Median values of Finnish wells dug into the overburden according to Lahermo et al. (2002). 2) Quality requirements and recommendations for household water in Finland, small units ( STMa 2001). 3) No quality standards or recommendations for uranium concentration in household water has been given in Finland, but the Radiation and Nuclear Safety Authority (STUK) recommends the refinement of water if the uranium concentration exceeds 100 µg/l (Mustonen et al., 2007). This concentration corresponds roughly the suggestive dose of 0.1 msv/year presented in EU s drinking water directive (Council Directive 98/83/EC). The World Health Organization (WHO) recommends the uppermost uranium limit for drinking water 15 µg/l. In dug wells the values of total alpha activity are low in all water samples varying between 0.04-0.24 Bq/l (Table 4). The highest concentration (0.24 Bq/l) was measured in the northernmost sampling site from the depth of 11.5 m (PVP 1, see Fig. 1). All radium concentrations are 0.03

Geological Survey of Finland Eastern Finland Unit 8 Bq/l or lower. Like total alpha and radium concentrations, also, radon concentrations are very low (14-45 Bq/l). Highest radon concentrations (40-45 Bq/l) were measured in the sampling site PVP 1 and 42 Bq/l in PVP 4. In 2006 and 2007 radon was not analysed. The radiation and Nuclear Safety Authority (STUK) has given guidelines for the radioactivity of drinking water in Finland (ST-instruction 12.3. 1993), according to which the limit of radon concentration for large units is 300 Bq/l. For private household (e.g. own well) the limit is 1000 Bq/l. Table 4. Radon (Rn-222), Radium (Ra-226) and total alpha activities in groundwater from the monitoring wells at Riutta (Appendix 6). Determinations in 2006 and 2007 from diamond drill holes are after Tenhola et al. (2006) and Tenhola (2008). Sites of the monitoring wells are presented in Fig. 1. Radon, Bq/l Radium, Bq/l Total alpha activity, Bq/l Rn-222 Ra-226 (Total amounts of U-234, U-238, Ra-226 and Po-210) DUG WELLS PVP 1 Riutta-08/GTK-11/7.5 m 40 <0.02 0.06 Riutta-08/GTK-12/11.5 m 45 0.03 0.24 PVP 2 Riutta-08/GTK-13/6 m 15 <0.02 0.04 Riutta-08/GTK-14/21 m 14 <0.02 0.11 PVP 3 Riutta-08/GTK-15/9 m 21 <0.02 0.13 Riutta-08/GTK-16/18 m 23 <0.02 0.14 PVP 4 Riutta-08/GTK-17/5 m 42 0.03 0.06 Riutta-08/GTK-18/14 m 42 <0.02 0.18 WELLS DRILLED INTO THE BEDROCK Sampling in 2006 Drill hole R326, 9 m 0.03 0.15 Drill hole R326, 24 m 0.05 0.53 Sampling in 2007 Drill hole R324, 14 m 2.1 47 Drill hole R324, 21 m 2.6 66 Conclusions and recommendations Total alpha activities, radium and radon concentrations as well as heavy metal concentrations were low in all monitoring wells. Highest concentrations were for total alpha 0.18 Bq/l and for radon-222 45 Bq/l. All radium concentrations were 0.03 Bq/l or lower. The highest uranium concentration was 1.14 µg/l. All heavy metal concentrations were low. The highest values were

Geological Survey of Finland Eastern Finland Unit 9 found in the monitoring well PVP 4, possible because it is situated in till areas, whereas other monitoring wells are situated in sand and gravel. Soil profiles showed that the glacial stratigraphy is rather complicated in the Riutta area. In the profile PVP 3 till forms the upper layer (0-3 m) and exists also in deeper parts (19-26 m). Also, in PVP 1 till layer was found in the depth of 23-28 m. Intercalated silt beds were noticed in some profiles. The monitoring well PVP 3 was placed in the southern part of the mire Matarinsuo. This was, because a naturally radioactive spring is situated in the northwestern part of the mire (see Äikäs et al., 1994), and the aim was to study the possible effect of its discharge on the groundwater in this monitoring well. The results show, that the concentrations are low in the monitoring well PVP 3 suggesting that the radionuclides are retained in the peat bog area of Matarinsuo. In the earlier studies the effect of the radioactive spring, with slightly elevated uranium concentrations, was found in the brook from Matarinsuo to river Kuusjoki (Sillanpää et al., 1989, Tenhola et al., 2006). The sampling is suggested to be repeated twice a year supposing that prospecting works will continue in the Riutta area. In Kuopio 24.10.2008 Markku Tenhola geologist References Kaija, J., Ruskeeniemi, T., Pullinen, A., 2008. Uranium concentrations in the bedrock groundwater of the Riutta area. In preparation. Lahermo, P., Tarvainen, T., Hatakka, T., Backman, B., Juntunen, R., Kortelainen, N., Lakomaa, T., Nikkarinen, M., Vesterbacka, P., Väisänen, U., Suomela, P., 2002. Tuhat kaivoa - Suomen kaivovesien fysikaalis-kemiallinen laatu vuonna 1999. Summary: One thousand wells - the physical-chemical quality of Finnish well waters in 1999. Geological Survey of Finland. Report of Investigation 155. 92 p. Mustonen, R., Ikäheimonen, T., Kurttio, P., Vesterbacka, P., Nikkarinen, M., Tenhola, M., Äikäs, O., 2007. Uraanimalmin koelouhinnan ja -rikastuksen ympäristövaikutukset (URAKKA). Säteilyturvakeskuksen ja Geologian tutkimuskeskuksen projektiryhmän loppuraportti ympäristöministeriölle (in Finnish). Helsinki. GTK. STUK. 42 p.

Geological Survey of Finland Eastern Finland Unit 10 Sillanpää, T., Ikäheimonen, T. K., Salonen, L., Taipale, T. ja Mustonen R., 1989. Paukkajanvaaran vanhan uraanikaivos- ja rikastamoalueen ja sen ympäristön radioaktiivisuustutkimukset. STUK-B-VALO 56 (in Finnish). Säteilyturvakeskus. 94 p. Tenhola, M., Saarelainen, J., Nikkarinen, M., 2006. Present environmental state survey of the Eno and Kontiolahti claim areas. Finland. Report for AREVA NC (COGEMA). Dnro K555/52/2006. Geological Survey of Finland. 32 p. Tenhola. M., 2008. Riutta water samples 2007. Report for AREVA NC (COGEMA). Dnro K555/52/2006 & K 129/53/2004. Geological Survey of Finland. 10 p. Äikäs, O., Seppänen, H., Yli-Kyyny, K., Leino, J., 1994. Young uranium deposits in peat, Finland: an orientation study. Geological Survey of Finland. Report of Investigation 124. 21 p.

MITTAUS- JA ASENNUSKORTTI Geotutkimus Lisäykset punaisella: O. Äikäs/GTK Projekti: Putken numero: Asiakkaan viite: Puhelin: Riutta Kontiolahti PVP 1 Olli Äikäs 0400 165794 Kairakone: 283387 HAVAINNOT Asentaja: J.Hiltunen Syvyys putken Pohjavesipinnan taso Pvm. Puhelin: 0400 377574 päästä Asennus päivä: 26-27.5.2008 ######## 5.00-4.05 Huom. Koordinaatit: Koordinaattijärjestelmä: X: 6971526.848 Y: 3654343.510 Z: 119.989 kkj3 TASOTIEDOT JA RAKENNE Putken yläpään taso: 0.95 Siivilän alapään taso: -31.05 Putkimateriaali: Putken halkaisija, mm: PEH 60mm Siivilän rako, mm: Vandaaliputken materiaali: 0,3mm RST 89 mm Lukittu Jatkoputken pituus: 18.00 Siivilän pituus: 14.00 Kokonaispituus: 32.00 Wmax = -4.05 Wmin = -4.05 Putki maanpinnasta: 0.95 Maalajit Lukittu Syvyys [m] Maalaji Jatkoputken pituus: 14.00 0-1,50 Sr yllä po. 4.00 1,50-4,50 KiSr 4,50-10,00 Sr 10,00-12,00 HkSr Siivilän pituus: 14.00 12,00-14,00 HkSr 14,00-16,00 Sr 16,00-23,00 Si 23,00-28,00 Mr 28,00-31,39 Kallio Putken kuva/sijainti Jatkoputken pituus: 4.00 yllä po. 14.00 Kuvat: O. Äikäs Toimivuustesti 1min 3min 5min 10min Maalajit ovat aistinvaraisia Siltti, 16 m. Koordinaatit: tarkkuusgps 11.6.2008/R. Sormunen GTK Destia Oy Y-tunnus 1635677-3 Geotutkimus Osoite E-mail Puhelin Fax Ollakantie 2, 90440 Kempele Antti.Tikkakoski@destia.fi 040 749 1441 +358 20 444 7282

MITTAUS- JA ASENNUSKORTTI Geotutkimus Lisäykset punaisella: O. Äikäs/GTK Projekti: Putken numero: Asiakkaan viite: Puhelin: Riutta Kontiolahti 2 Olli Äikäs 0400 165794 Kairakone: 283387 HAVAINNOT Asentaja: J.Hiltunen Syvyys putken Pohjavesipinnan taso Pvm. Puhelin: 0400 377574 päästä Asennus päivä: 27-28.5.2008 ######## 3.85-2.80 Huom. Koordinaatit: Koordinaattijärjestelmä: X: 6971132.229 Y: 3654256.464 Z: 116.337 kkj3 TASOTIEDOT JA RAKENNE Putken yläpään taso: 1.05 Siivilän alapään taso: -24.20 Putkimateriaali: Putken halkaisija, mm: PEH 60mm Siivilän rako, mm: Vandaaliputken materiaali: 0,3mm RST 89 mm Lukittu Jatkoputken pituus: 4.25 Siivilän pituus: 21.00 Kokonaispituus: 25.25 Wmax = -2.80 Wmin = -2.80 Putki maanpinnasta: 1.05 Maalajit Lukittu Syvyys [m] Maalaji Jatkoputken pituus: 1.25 0-4.00 KiSr 4.00-6.00 HkSr Siivilän pituus: 11.00 6.00-13.00 Hk 13.00-24.80 Hhk 24.80-28.06 Kallio Putken kuva/sijainti Siivilän pituus: 10,00 + Sukka Jatkoputken pituus: 3.00 Kuva: O. Äikäs Toimivuustesti 1min 3min 5min 10min Maalajit ovat aistinvaraisia Koordinaatit: tarkkuusgps 11.6.2008/R. Sormunen GTK Destia Oy Y-tunnus 1635677-3 Geotutkimus Osoite E-mail Puhelin Fax Ollakantie 2, 90440 Kempele Antti.Tikkakoski@destia.fi 040 749 1441 +358 20 444 7282

MITTAUS- JA ASENNUSKORTTI Geotutkimus Lisäykset punaisella: O. Äikäs/GTK Projekti: Putken numero: Asiakkaan viite: Puhelin: Riutta Kontiolahti 3 Olli Äikäs 0400 165794 Kairakone: 283387 HAVAINNOT Asentaja: J.Hiltunen Syvyys putken Pohjavesipinnan taso Pvm. Puhelin: 0400 377574 päästä Asennus päivä: 28-29.5.2008 ######## 8.60-7.55 Huom. Koordinaatit: Koordinaattijärjestelmä: X: 6970676.492 Y: 3654120.018 Z: 119.844 kkj3 TASOTIEDOT JA RAKENNE Putken yläpään taso: 1.05 Siivilän alapään taso: -31.95 Putkimateriaali: Putken halkaisija, mm: PEH 60mm Siivilän rako, mm: Vandaaliputken materiaali: 0,3mm RST 89 mm Lukittu Jatkoputken pituus: 5.00 Siivilän pituus: 28.00 Kokonaispituus: 33.00 Wmax = -7.55 Wmin = -7.55 Putki maanpinnasta: 1.05 Maalajit Lukittu Syvyys [m] Maalaji Jatkoputken pituus: 3.00 0-3,00 Mr 3,00-4,50 HkSr Siivilän pituus: 28.00 4,50-5,50 Hk 5,50-6,00 Si 6,00-7,50 Sr 7,50-11,00 HkSr 11,00-13,00 Sr 13,00-15,00 Hk 15,00-17,00 Hk 17,00-19,00 Hk Jatkoputken pituus: 2.00 19,00-26,00 Mr 26.00-32.00 KiMr 32.00-35.88 Kallio Putken kuva/sijainti Toimivuustesti 1min 3min 5min 10min Maalajit ovat aistinvaraisia Kuvat: O. Äikäs Koordinaatit: tarkkuusgps 11.6.2008/R. Sormunen GTK Destia Oy Y-tunnus 1635677-3 Geotutkimus Osoite E-mail Puhelin Fax Ollakantie 2, 90440 Kempele Antti.Tikkakoski@destia.fi 040 749 1441 +358 20 444 7282

MITTAUS- JA ASENNUSKORTTI Geotutkimus Lisäykset punaisella: O. Äikäs/GTK Projekti: Putken numero: Asiakkaan viite: Puhelin: Riutta Kontiolahti 4 Olli Äikäs 0400 165794 Kairakone: 283387 HAVAINNOT Asentaja: J.Hiltunen Syvyys putken Pohjavesipinnan taso Pvm. Puhelin: 0400 377574 päästä Asennus päivä: 29.05.2008 ######## 2.45-1.50 Huom. Koordinaatit: Koordinaattijärjestelmä: X: 6970541.134 Y: 3655014.992 Z: 116.812 kkj3 TASOTIEDOT JA RAKENNE Putken yläpään taso: 0.95 Siivilän alapään taso: -14.05 Putkimateriaali: Putken halkaisija, mm: PEH 60mm Siivilän rako, mm: Vandaaliputken materiaali: 0,3mm RST 89 mm Lukittu Jatkoputken pituus: 3.00 Siivilän pituus: 12.00 Kokonaispituus: 15.00 Wmax = -1.50 Wmin = -1.50 Putki maanpinnasta: 0.95 Maalajit Lukittu Syvyys [m] Maalaji Jatkoputken pituus: 3.00 0-6,50 Sr 6,50-7,00 Si 7,00-9,00 Mr 9,00-11,50 HkMr 11,50-14,70 Kallio Putken kuva/sijainti Siivilän pituus: 12.00 Toimivuustesti 1min 3min 5min 10min Maalajit ovat aistinvaraisia Kuvat: O. Äikäs Kallionäyte on ortokvartsiittia, lievästi punertavaa. Koordinaatit: tarkkuusgps 11.6.2008/R. Sormunen GTK Destia Oy Y-tunnus 1635677-3 Geotutkimus Osoite E-mail Puhelin Fax Ollakantie 2, 90440 Kempele Antti.Tikkakoski@destia.fi 040 749 1441 +358 20 444 7282

GTK ISY Maankäyttö ja ympäristö VA 402 16.10.2008 8:37:57 Espoo Markku Tenhola PL 1237 70211 Kuopio FINLAND Tämä testausseloste korvaa 4.8.2008 päivätyn selosteen. Tässä selosteessa on näytteen L08081893 kenttätunnus Riutta-08/GTK-12/21m korjattu Riutta-08/GTK-12/11.5m. Aikaisemmin toimitettu seloste on mitätöitävä. ANALYYSITULOKSIA TILAUSNUMERO: 213844 VIITE: 1901006VA402Tenhola PROJEKTI/HANKE: 1901006 VASTUUALUE: 402 NÄYTTEITÄ: 8 MENETELMÄKOODI NÄYTTEITÄ MÄÄRITYKSIÄ + 139M 8 216 + 139P 8 48 + 143R 8 40 Labtium Oy Hanna Kahelin Laboratoriopäällikkö Labtium Oy PL 57 02151 ESPOO Puh. 01065 38000 Fax 01065 38289 Kansilehti 213844 1/5

Labtium Oy MENETELMÄKUVAUKSET JA HUOMAUTUKSET Tilausnumero: 213844 Raportointipäivä: 16.10.2008 8:37:57 TULOS PÄTEE VAIN TESTATUILLE NÄYTTEILLE. TESTAUSSELOSTEEN SAA KOPIOIDA VAIN KOKONAAN. TULOKSET VALMISTUNEET: 29.07.2008-31.07.2008 VAIN NE TESTIMENETELMÄT, JOISSA TÄSSÄ SELOSTEESSA ON MERKINTÄ + MENETELMÄKOODIN EDESSÄ, KUULUVAT AKKREDITOINNIN PIIRIIN. + 143R Anionien määritys IC-tekniikalla + 139M Monialkuainemääritys ICP-MS-tekniikalla + 139P Monialkuainemääritys ICP-AES-tekniikalla + 139P=+ 139Pp Info 213844 1/1

Labtium Oy Laboratorion Tilaajan Ag Al As B Ba Be Bi Cd Co Cr Cu K Li Mn Mo Ni näytetunnus näytetunnus µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l mg/l µg/l µg/l µg/l µg/l + 139M + 139M + 139M + 139M + 139M + 139M + 139M + 139M + 139M + 139M + 139M + 139M + 139M + 139M + 139M + 139M L08081892 Riutta-08/GTK-11/7.5m <0.01 38.6 0.15 1.63 13.0 <0.1 <0.02 0.03 1.75 0.39 3.42 1.02 0.11 104 0.22 1.18 L08081893 Riutta-08/GTK-12/11.5m <0.01 123 0.29 1.62 11.9 <0.1 <0.02 0.02 2.00 0.99 3.31 0.94 0.14 120 0.21 1.75 L08081894 Riutta-08/GTK-13/6m <0.01 9.30 2.95 1.71 11.6 <0.1 <0.02 0.03 1.34 0.36 0.89 1.52 0.83 118 0.24 2.72 L08081895 Riutta-08/GTK-14/21m <0.01 27.0 3.02 1.90 12.5 <0.1 <0.02 0.03 1.43 0.62 1.40 1.59 0.92 132 0.33 3.45 L08081896 Riutta-08/GTK-15/9m <0.01 15.6 0.08 1.24 6.38 <0.1 <0.02 0.05 2.24 0.30 0.70 0.64 0.12 84.1 0.21 4.36 L08081897 Riutta-08/GTK-16/18m <0.01 9.83 0.10 1.20 6.25 <0.1 <0.02 0.03 2.53 0.28 0.55 0.65 0.14 98.4 0.24 4.35 L08081898 Riutta-08/GTK-17/5m <0.01 40.0 3.02 0.83 17.5 <0.1 <0.02 0.10 2.35 0.85 16.0 0.60 0.47 76.2 0.34 6.12 L08081899 Riutta-08/GTK-18/14m <0.01 59.9 4.36 1.04 16.4 <0.1 0.02 0.10 3.09 1.00 17.6 0.74 0.55 85.8 0.63 6.35 Tulokset 213844 1/3

Labtium Oy Laboratorion näytetunnus L08081892 L08081893 L08081894 L08081895 L08081896 L08081897 L08081898 L08081899 Tilaajan näytetunnus Riutta-08/GTK-11/7.5m Riutta-08/GTK-12/11.5m Riutta-08/GTK-13/6m Riutta-08/GTK-14/21m Riutta-08/GTK-15/9m Riutta-08/GTK-16/18m Riutta-08/GTK-17/5m Riutta-08/GTK-18/14m P Pb Rb Sb Se Sr Th Tl U V Zn Ca Fe Mg Na S µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l mg/l mg/l mg/l mg/l mg/l + 139M + 139M + 139M + 139M + 139M + 139M + 139M + 139M + 139M + 139M + 139M + 139P + 139P + 139P + 139P + 139P <10 0.08 2.79 0.02 <0.5 22.5 0.10 0.02 0.21 0.15 12.2 6.67 0.15 0.84 1.36 1.75 <10 0.44 2.61 0.02 <0.5 20.3 0.21 0.02 0.25 0.30 11.5 6.67 0.26 0.84 1.42 1.74 <10 0.07 2.17 0.02 <0.5 21.6 0.05 0.01 0.11 0.12 23.2 7.06 2.70 1.26 2.46 1.82 11.3 0.19 2.28 0.06 <0.5 22.9 0.10 0.01 0.15 0.19 32.0 7.28 2.65 1.27 2.60 1.80 <10 <0.05 2.56 0.03 <0.5 14.9 <0.01 0.02 0.05 0.07 22.5 2.10 0.04 0.44 1.29 0.91 <10 <0.05 2.61 0.04 <0.5 15.6 0.01 0.02 0.05 0.05 21.9 2.22 0.03 0.45 1.28 0.89 <10 0.18 2.01 0.03 <0.5 12.0 0.12 0.01 0.76 0.19 18.3 2.44 0.18 0.46 0.95 0.78 <10 0.24 1.95 0.07 <0.5 14.9 0.21 0.01 1.14 0.34 21.0 3.12 0.28 0.53 1.10 0.78 Tulokset 213844 2/3

Labtium Oy Laboratorion näytetunnus L08081892 L08081893 L08081894 L08081895 L08081896 L08081897 L08081898 L08081899 Tilaajan näytetunnus Riutta-08/GTK-11/7.5m Riutta-08/GTK-12/11.5m Riutta-08/GTK-13/6m Riutta-08/GTK-14/21m Riutta-08/GTK-15/9m Riutta-08/GTK-16/18m Riutta-08/GTK-17/5m Riutta-08/GTK-18/14m Si Br Cl F SO4 NO3 mg/l mg/l mg/l mg/l mg/l mg/l + 139P + 143R + 143R + 143R + 143R + 143R 2.75 <0.1 1.2 <0.1 5.0 0.4 2.79 <0.1 1.2 <0.1 5.0 0.3 6.31 <0.1 1.2 <0.1 5.0 <0.2 6.26 <0.1 1.2 <0.1 5.0 <0.2 4.34 <0.1 0.7 <0.1 2.6 0.8 4.43 <0.1 0.7 <0.1 2.7 0.6 2.81 <0.1 0.4 <0.1 2.1 <0.2 3.09 <0.1 0.5 <0.1 2.2 <0.2 Tulokset 213844 3/3

.,STUK Tutkimus ja ympäristönvalvonta 2.9.2008 4733N2008 Geologian tutkimuskeskus Markku Tenhola PL 1237 70211 KUOPIO RADIOAKTIIVISUUDEN MITTAUSTULOKSET TILAAJA- JA NÄYTETIEDOT TILAAJA: NÄ YTTEENOTTOP ÄIV Ä: SAAPUMISP ÄJV Ä: NÄ YTENUMERO: Geologian tutkimuskeskus Markku Tenho1a 1.7.2008 4.7.2008 4733 RADIONUKLIDIPITOISUUDET Näyte Radon Radium Pitkäikäiset alfa-aktiiviset aineet: (Rn-222) (Ra-226): (U-234, U238, Ra-226 ja Po-21 0 yhteismäärä) GTK-11 40 Bq/1 <0,02 Bq/1 0,06 Bq/1 GTK-12 45 Bq/1 0,03 Bq/1 0,24 Bq/1 GTK-13 15 Bq/1 <0,02 Bq/1 0,04 Bq/1 GTK-14 14 Bq/1 <0,02 Bq/1 0,11Bq/1 GTK-15 21 Bq/1 <0,02 Bq/1 0,13 Bq/1 1 GTK-16 23 Bq/1 <0,02 Bq/1 0,14 Bq/1 GTK-17 42 Bq/1 0,03 Bq/1 0,06 Bq/1 GTK-18 42 Bq/1 <0,02 Bq/1 0,18 Bq/1 Apulaistutkija ~~ (<, Ta~a-lteikkinen STUK SÄTEilYTURVAKESKUS OSOITE/ADDRESS POSTIOSOITE/POSTAL ADDRESS STRAlSÄKERHETSCENTRAlEN PUH./TEL. FAX RADIATION ANO NUClEAR Laippatie 4 PL/P.O. Bo x 14 (09) 759 881 (09) 7598 8500 SAFETV AUTHORITV 00880 HELSINKI FIN-00881 HELSINKI, FINLAND +358 9 759 881 +358 9 7598 8500