Liite 4 Virtausten tarkkailu

Transkriptio

1 NS Final Munitions Clearance Monitoring Report FIN EEZ Rev A: 19 Sep 21 Liite 4 Virtausten tarkkailu Tämä liite Kuvien selitykset Tässä liitteessä esitetään tulokset virtausten tarkkailusta ammusluvan määräyksen 4 ja vesiluvan määräyksen 19 mukaisesti. Lisäksi viitataan tämän raportin lukuun 4.2. Virtausruusu Virtausruusun tarkoitus on osoittaa ymmärrettävällä tavalla virtauksen nopeus ja suunta kussakin syvyydessä. samankeskiset kehät ovat,5 m/s:n välein uloin kehä merkitsee aina virtausnopeutta,3 m/s; kesäkuussa ei ollut,3 m/s suurempia virtausnopeuksia kehien arvot on merkitty astetta akselin viereen virtauksen suunta on piirretty kulkemaan virtausruususta ulospäin kriittinen sektori on 12 ja 21 asteen välissä ja,3 m:n ulkopuolella; se on merkitty katkonaisella ruskealla viivalla mittaussyvyyttä osoittavat värit on kerrottu värien selityksessä ruusun oikealla puolella 3D-diagrammi 3D-diagrammin tarkoitus on ensisijaisesti osoittaa virtauksen suunta veden syvyysfunktiona ja täten näyttää virtausten kolmiuloitteisuus. pystyakseli osoittaa veden syvyyden metreissä molemmat vaaka-akselit osoittavat virtauksen nopeutta m/s pystysuora punainen sektori osoittaa kriittisen sektorin syvyyden suhteen keskelle punaisen elementtiin kiinnitetty pystysuora musta taso osoittaa pohjoiseen ja sen pituus osoittaa korkeimman ja matalimman mittauspisteen välistä matkaa 3D diagrammin väriskaala on sama kuin virtausruusussa Virtausasiakirjat Kukin virtaustarkkailuasiakirja sisältää asiaan liittyvät tiedot, jotka on kirjattu avustavalla aluksella virtausmittausten aikana. Virtausmittaukset luovat pohjan analyyseille. Asiakirjoissa on myös esitetty kommentteja tietyistä mittaustuloksista silloin, kun niitä pidetään vähemmän luotettavina. Kommentit on otettu huomioon tässä raportissa esitetyssä analyysissä.

2 NS Final Munitions Clearance Monitoring Report FIN EEZ Rev A: 19 Sep 21 Liite 4.1 Virtausten tarkkailutulokset joulukuussa 29 Kuvaus Tässä liitteessä esitetään kaikki virtausten tarkkailutulokset, jotka liittyvät ammusten raivaukseen joulukuussa 29, ja ne on raportoitu Etelä-Suomen aluehallintovirastolle viitteessä /88/ mainitulla tiedoksiannolla 1 (katso pääraportin taulukko 1.2) ammusluvan määräysten 4 ja 12 mukaisesti.

3 Liite 4.1 Virtausten seuranta, joulukuun 29 raivaukset Liite 4.1 Virtausten seuranta, joulukuun raivaukset Raivatut ammukset Joulukuussa 29 raivatut ammukset on lueteltu taulukossa A4.1.1 raivaamispäiväjärjestyksessä. Mainitut päivämäärät ovat päiviä, jolloin raivausyrityksiä tehtiin, ja viimeinen päivämäärä on se, jolloin raivaus onnistui. Tiedot raivattujen ammusten sijainneista ovat liitteessä 1. Taulukko A4.1.1 Yhteenveto viidestä joulukuussa 29 raivatusta ammuksesta. NSP tunnus ROVtunnus BACTECtunnus KP (C16) Panos kg TNT Raivauspäivä Alus F4 R-7-26 Carbon JL F3 R-7-4 Calcium JL F2 R-E7B-1466 Caesium , JL F1B R-W6F-1747 Vanadium JL F5 R-8AG-W-14 Chromium JL Huomautus: JL: tukialus MV John Lethbridge. Virtausruusut ja 3D-diagrammit Tämä osa Tämä osa sisältää niiden ennen räjäytyksiä tehtyjen virtausmittausten tulokset, joilla varmistettiin, ettei meressä ollut voimakkaita Viroon päin suuntautuvia virtauksia. Tulokset on esitetty aikajärjestyksessä (ei ammusten F-numeron mukaisessa järjestyksessä). Mittausmenetelmä on selostettu liitteen 4 alussa. Tulokset on esitetty virtausruusuina ja 3D-diagrammeina. Witteveen+Bos Sivu 1 / 5

4 Liite 4.1 Virtausten seuranta, joulukuun 29 raivaukset Ammuksen F4, R-7-26, Carbon, raivaus. Kuva A Havaitut virtausolot ennen ammuksen F4 raivausta Limit Threshold Average of Percentage Ammuksen F3, R-7-4, Calcium, raivaus Limit Threshold Average of relevan Percentage relevan Kuva A4.1.2 Havaitut virtausolot ennen ammuksen F3 raivausta. Witteveen+Bos Sivu 2 / 5

5 Liite 4.1 Virtausten seuranta, joulukuun 29 raivaukset Ammuksen F2, R-E7B-1466, Caesium, raivaus Limit Threshold Average of releva Percentage releva Kuva A4.1.3 Havaitut virtausolot ennen ammuksen F2 raivausta Ammusten F1,R-6-3, Titanium ja R-W6F-1747, Vanadium, raivaus. Kuva A Location and data Havaitut virtausolot ennen ammuksen F1 raivausta Measuring depth (m below water surface) Limit Threshold Average of relevant cu Percentage relevant: Witteveen+Bos Sivu 3 / 5

6 Liite 4.1 Virtausten seuranta, joulukuun 29 raivaukset Ammuksen F5, R-8AG-W-14, Chromium, raivaus. Kuva A Location and data Havaitut virtausolot ennen ammuksen F5 raivausta Measuring depth (m below water surface) Limit Threshold Average of relevant cu Percentage relevant: Witteveen+Bos Sivu 4 / 5

7 Liite 4.1 Virtausten seuranta, joulukuun 29 raivaukset Tallennetut virtaustiedot Tämä osa Tässä osassa on kaikki tukialus M/V John Lethbridgeltä ennen räjäytyksiä mitatut virtausten seurantatiedot. Tiedot on esitetty BABTEC-tunnusten mukaisessa aakkosjärjestyksessä. Tietojen tarkastelun helpottamiseksi seuraavassa taulukossa on esitetty myös BABTEC-tunnuksia vastavat NSP- ja ROV-tunnukset. Taulukko A4.1.2 Yhteenveto raivatuista ammuksista BABTEC-tunnuksen mukaisessa järjestyksessä. NSP tunnus KP (C16) Panos kg TNT ROVtunnus BACTECtunnus Raivauspäivä Alus F2 R-E7B-1466 Caesium , JL F3 R-7-4 Calcium JL F4 R-7-26 Carbon JL F5 R-8AG-W-14 Chromium JL F1B R-W6F-1747 Vanadium JL Witteveen+Bos Sivu 5 / 5

8 Record of Current Metering Annex C Document No.: G-GE-MUN-REP-163-DSPRC3 Revision No.: A -1 BACTEC International Limited

9 Record of Current Metering Annex C Document No.: G-GE-MUN-REP-163-DSPRC4 Revision No.: A-1 BACTEC International Limited

10 Record of Current Metering Annex C Document No.: G-GE-MUN-REP-163-DSPRC5-A Revision No.: A BACTEC International Limited

11 Record of Current Metering Annex C Document No.: G-GE-MUN-REP-163-DSPRC7 Revision No.: A-1 BACTEC International Limited

12 Record of Current Metering Annex D Document No.: G-GE-MUN-REP-163-DSPRC2 Revision No.: A-1 BACTEC International Limited

13 NS Final Munitions Clearance Monitoring Report FIN EEZ Rev A: 19 Sep 21 Liite 4.2 Virtausten tarkkailutulokset huhtikuussa 21 Kuvaus Tässä liitteessä esitetään kaikki virtausten tarkkailutulokset, jotka liittyvät ammusten raivaukseen huhtikuussa 21, ja ne on raportoitu Uudenmaan ja Lounais-Suomen ELY-keskuksille kohdassa /89/ mainitulla tiedoksiannolla 6 (katso pääraportin taulukko 1.2) määräysten 4 (ammuslupa) ja 19 (vesilupa) mukaisesti.

14 Liite 4.2 Virtausten seuranta, huhtikuun raivaukset Liite 4.2 Virtausten seuranta, huhtikuun raivaukset Raivatut ammukset Taulukko A4.2.1 Huhtikuussa 21 raivatut ammukset on lueteltu taulukossa A4.2.1 raivaamispäiväjärjestyksessä. Mainitut päivämäärät ovat onnistuneiden raivauksien päivämääriä. Ammusten F42, F2, F41 ja F39 raivaus vaati kaksi yritystä. Tiedot raivattujen ammusten sijainnista on esitetty liitteessä 1. Yhteenveto huhtikuussa 21 raivatuista ammuksista. NSP tunnus ROV-tunnus KP (C16) Panos kg TNT BACTECtunnus Raivauspäivä F36 R Iridium F R Osmium F25+ R-12-8 F26 (2 ammusta) Sulphur F34 R Lead F33 R Aluminium *, F23 R Silver F42 R Phosphorus F21 R-9-4 Platinum 257.3, F22 R Potassium F27 R Xenon F2 S-9-31 Palladium F41 R Arsenic F39 R Germanium F6 R-8AG-W-9 Cobalt F7 R-E8C-1223 Copper F19 R-9-27 Zinc Huomautus: Ammusten F39 ja F19 raivauksen suoritti M/V Noordhoek Singapore, kaikkien muiden M/V Edda Freya. Virtausten nopeusprofiilit Virtausprofiilit Kun mittaustulokset esitetään veden syvyyden suhteen laadittuina virtausnopeusprofiileina, nähdään, onko muissa kuin pintakerroksissa ollut merkittäviä virtauksia. Kaikki nopeusprofiilit on esitetty kasvavan KP-numeron mukaisessa järjestyksessä. Kunkin profiilin alin piste esittää veden syvyyttä mittauspisteessä virtausnopeudella nolla. Witteveen+Bos Sivu 1 / 15

15 Liite 4.2 Virtausten seuranta, huhtikuun raivaukset Water Depth (m) F6 Cobalt F39 Germanium F39 Germanium (second hit) F7 Copper F19 Zinc 1 11 F2 Palladium F2 Palladium (second hit) Current Velocity (m/s) Kuva A4.2.1 Mitatut virtausnopeudet veden syvyyden funktiona väliltä KP 223 KP 256 raivattujen ammusten kohdalla Water Depth (m) F21 Platinum F41 Arsenic F41 Arsenic (second hit) F42 Phosporus F42 Phosporus (Second hit) F22 Potassium F23 Silver F33 Alumunium Current Velocity (m/s) Kuva A4.2.2 Mitatut virtausnopeudet veden syvyyden funktiona väliltä KP 257 KP 332 raivattujen ammusten kohdalla. Witteveen+Bos Sivu 2 / 15

16 Liite 4.2 Virtausten seuranta, huhtikuun raivaukset Water Depth (m) F34 Lead F25+F26 Sulphur F27 Xenon 1 11 F Osmium F36 Iridium Current Velocity (m/s) Kuva A4.2.3 Mitatut virtausnopeudet veden syvyyden funktiona väliltä KP KP 419 raivattujen ammusten kohdalla. Havainnot Tärkeimmät virtausprofiileista tehdyt havainnot ovat seuraavat: Yleensä virtausnopeudet ylemmissä kerroksissa ovat hieman suurempia kuin alemmissa kerroksissa; Pohjan läheiset (alle 5 metriä merenpohjan yläpuolella) virtausnopeudet ovat yleensä hyvin pieniä, alle,1 m/s, ja aina alle kriteerin,3 m/s. Huhtikuun päivinä virtausnopeudet vesipatsaan alaosassa olivat hieman suurempia kuin sen yläosassa, ollen kuitenkin vain noin,12,15 m/s; Virtausnopeuden vaihtelut vesipatsaan eri osissa ovat merkittäviä. Johtopäätökset Yhteenvetona esitämme johtopäätöksen, että virtausnopeudet olivat pieniä ja että ammusten raivaus hoidettiin asiaa koskevien lupaehtojen mukaisesti. Mitatut virtausnopeudet ovat YVA:ssa mainittujen ennustettujen nopeuksien rajoissa eivätkä anna aihetta muuttaa YVA:ssa esitettyjä arvioita tai sen jälkeen tehtyjä ammuskohtaisia arvioita. Witteveen+Bos Sivu 3 / 15

17 Liite 4.2 Virtausten seuranta, huhtikuun raivaukset Virtausruusut ja 3D-diagrammit Tämä osa Tämä osa sisältää niiden ennen räjäytyksiä tehtyjen virtausmittausten tulokset, joilla varmistettiin, ettei meressä ollut voimakkaita Viroon päin suuntautuvia virtauksia. Tulokset on esitetty aikajärjestyksessä (ei sotatarvikkeiden F-numeron mukaisessa järjestyksessä). Mittausmenetelmä on selostettu liitteen 4 alussa. Tulokset on esitetty virtausruusuina ja 3Ddiagrammeina Ammuksen F36, R-7-26, Iridium, raivaus. Location and data Measuringdepth (m below water surface) Limit Threshold Average of relevan Percentage relevan Kuva A4.2.4 Havaitut virtausolot ennen ammuksen F36 raivausta. Witteveen+Bos Sivu 4 / 15

18 Liite 4.2 Virtausten seuranta, huhtikuun raivaukset Ammuksen F, R-7-4, Osmium, raivaus. Location and data Measuringdepth (m below water surface) Limit Threshold Average of relevan Percentage releva Kuva A4.2.5 Havaitut virtausolot ennen ammuksen F raivausta Ammuksen F25+F26, R-12-8 (2 ammusta), Sulphur, raivaus. Location and data Measuringdepth (m below water surface) Limit Threshold Average of relevan Percentage releva Kuva A4.2.6 Havaitut virtausolot ennen ammuksen F25+26 raivausta. Witteveen+Bos Sivu 5 / 15

19 Liite 4.2 Virtausten seuranta, huhtikuun raivaukset Ammuksen F34, R-E7B-1466, Lead, raivaus. Location and data Measuringdepth (m below water surface) Limit Threshold Average of releva Percentage releva Kuva A4.2.7 Havaitut virtausolot ennen ammuksen F34 raivausta Ammuksen F33, R-6-3, Aluminium, raivaus. Location and data Measuringdepth (m below water surface) Limit Threshold Average of releva Percentage releva Kuva A4.2.8 Havaitut virtausolot ennen ammuksen F33 raivausta. Witteveen+Bos Sivu 6 / 15

20 Liite 4.2 Virtausten seuranta, huhtikuun raivaukset Ammuksen F23, R-11-33, Silver, raivaus. Location and data Measuringdepth (m below water surface) Limit Threshold Average of releva Percentage releva Kuva A4.2.9 Havaitut virtausolot ennen ammuksen F23 raivausta Ammuksen F42, R-9-122, Phosphorus, ensimmäinen raivausyritys. Location and data Measuringdepth (m below water surface) Limit Threshold Average of relevan Percentage releva Kuva A4.2.1 Havaitut virtausolot ennen ammuksen F42 ensimmäistä raivausyritystä. Witteveen+Bos Sivu 7 / 15

21 Liite 4.2 Virtausten seuranta, huhtikuun raivaukset Ammuksen F42, R-9-122, Phosphorus, toinen ja onnistunut raivausyritys. Location and data Measuringdepth (m below water surface) Limit Threshold Average of releva Percentage releva Kuva A Havaitut virtausolot ennen ammuksen F42 toista, onnistunutta raivausyritystä Ammuksen F21, R-9-4, Platimun, raivaus. Location and data Measuringdepth (m below water surface) Limit Threshold Average of releva Percentage releva Kuva A Havaitut virtausolot ennen ammuksen F21 raivausta Ammuksen F22, R-9-192, Potassium, raivaus. Witteveen+Bos Sivu 8 / 15

22 Liite 4.2 Virtausten seuranta, huhtikuun raivaukset Location and data Measuringdepth (m below water surface) Limit Threshold Average of relevan Percentage releva Kuva A Havaitut virtausolot ennen ammuksen F22 raivausta Ammuksen F27, R , Xenon, raivaus. Location and data Measuringdepth (m below water surface) Limit Threshold Average of releva Percentage releva Kuva A Havaitut virtausolot ennen ammuksen F27 raivausta. Witteveen+Bos Sivu 9 / 15

23 Liite 4.2 Virtausten seuranta, huhtikuun raivaukset Ammuksen F2, R-9-31, Palladium, ensimmäinen raivausyritys. Location and data Measuringdepth (m below water surface) Limit Threshold Average of relevan Percentage releva Kuva A Havaitut virtausolot ennen ammuksen F2 ensimmäistä raivausyritystä Ammuksen F2, R-9-31, Palladium, toinen ja onnistunut raivausyritys. Location and data Measuringdepth (m below water surface) Limit Threshold Average of relevan Percentage releva Kuva A Havaitut virtausolot ennen ammuksen F2 toista, onnistunutta raivausyritystä. Witteveen+Bos Sivu 1 / 15

24 Liite 4.2 Virtausten seuranta, huhtikuun raivaukset Ammuksen F41, R-9-192, Arsenic, ensimmäinen raivausyritys. Location and data Measuringdepth (m below water surface) Limit Threshold Average of relevan Percentage releva Kuva A Havaitut virtausolot ennen ammuksen F41 ensimmäistä raivausyritystä Ammuksen F41, R-9-192, Arsenic, toinen ja onnistunut raivausyritys. Location and data Measuringdepth (m below water surface) Limit Threshold Average of relevan Percentage relevan Kuva A Havaitut virtausolot ennen ammuksen F41 toista, onnistunutta raivausyritystä. Witteveen+Bos Sivu 11 / 15

25 Liite 4.2 Virtausten seuranta, huhtikuun raivaukset Ammuksen F39, R-9-192, Germanium, ensimmäinen raivausyritys. Location and data Measuringdepth (m below water surface) Limit Threshold Average of releva Percentage releva Kuva A Havaitut virtausolot ennen ammuksen F39 ensimmäistä raivausyritystä Ammuksen F39, R-9-192, Germanium, toinen ja onnistunut raivausyritys. Location and data Measuringdepth (m below water surface) Limit Threshold Average of relevan Percentage releva Kuva A4.2.2 Havaitut virtausolot ennen ammuksen F39 toista, onnistunutta raivausyritystä. Witteveen+Bos Sivu 12 / 15

26 Liite 4.2 Virtausten seuranta, huhtikuun raivaukset Ammuksen F6, R-8AG-W-94, Cobalt, raivaus. Location and data Measuringdepth (m below water surface) Limit Threshold Average of releva Percentage releva Kuva A Havaitut virtausolot ennen ammuksen F6 raivausta Ammuksen F7, R-E8C-1223, Copper, raivaus. Location and data Measuringdepth (m below water surface) Limit Threshold Average of releva Percentage releva Kuva A Havaitut virtausolot ennen ammuksen F7 raivausta. Witteveen+Bos Sivu 13 / 15

27 Liite 4.2 Virtausten seuranta, huhtikuun raivaukset Ammuksen F19, R-9-27, Zinc, raivaus. Location and data Measuringdepth (m below water surface) Limit Threshold Average of releva Percentage releva Kuva A Havaitut virtausolot ennen ammuksen F19 raivausta. Witteveen+Bos Sivu 14 / 15

28 Liite 4.2 Virtausten seuranta, huhtikuun raivaukset Tallennetut virtaustiedot Tämä osa Tässä osassa on esitetty kaikki tukialuksilta M/V Edda Freya ja M/V Noordhoek Singapore ennen räjäytyksiä mitatut virtausten tarkkailutiedot. Tiedot on esitetty BABTEC-tunnusten mukaisessa aakkosjärjestyksessä. Tietojen tarkastelun helpottamiseksi seuraavassa taulukossa on esitetty myös BABTEC-tunnuksia vastavat NSP- ja ROV-tunnukset. Taulukko A4.2.2 Yhteenveto raivatuista ammuksista BABTEC-tunnuksen mukaisessa järjestyksessä. NSP tunnus ROV-tunnus KP (C16) Panos kg TNT BACTECtunnus Raivauspäivä F33 R Aluminium *, F41 R Arsenic F6 R-8AG-W-9 Cobalt F7 R-E8C-1223 Copper F39 R Germanium F36 R Iridium F34 R Lead F R Osmium F2 S-9-31 Palladium F42 R Phosphorus F21 R-9-4 Platinum 257.3, F22 R Potassium F23 R Silver F25+ R-12-8 F26 (2 ammusta) Sulphur F27 R Xenon F19 R-9-27 Zinc Witteveen+Bos Sivu 15 / 15

29 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Target and Test Identification Instrumentation BACTEC id : 16-ALUMINIUM Current Meter: Valeport 16 Nord Stream id: R Serial Number: 2416 Date of measurement: 1241 Control Display Unit: 16 CDU Profile No.: 14 Serial Number: Position (East & North): Survey Vessel Sampling Regime 61166/98386 Sampling Period: 15 seconds Heading: 14 Averaging Period: 4 Activity from Thrusters: <33% Water Depth (m): 76.68m Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 14 knots Direct reading Yes Wind direction: ENE Internal Logging No Sea State: 3 - slight Swell Height <.8m Notes: Pressure sensor tared? Yes Time Pressure Depth Speed Direction Operator Comments UTC (dbar) (m BSS) (M/s) (Deg Mag) 6: : : : : : : : Maximum current speed 29 Average current speed (m/sec):.123 Notes: Conversion dbar to Water Depth in meters: Surveyor Signed C Copland and J Sheppard Page: 1 of 1 Form F-3 v-3

30 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Target and Test Identification Instrumentation BACTEC id : 13-ARSENIC Current Meter: Valeport 16 Nord Stream id: R Serial Number: 2416 Date of measurement: 2541 Control Display Unit: 16 CDU Profile No.: 23 Serial Number: Cable Reel: Position (East & North): Survey Vessel Sampling Regime 343E & N Sampling Period: 15 seconds Heading: 268 Averaging Period: 4 Activity from Thrusters: <15% Water Depth (m): 6m Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 17 knots Direct reading Yes Wind direction: 2 Internal Logging No Sea State: 3 Slight Swell Height 1m Notes: Pressure sensor tared? Yes Time Pressure Calculated Water Speed Direction Operator Comments Depth UTC (dbar) (m BSS) (M/s) (Deg Mag) 1: : : : : : Maximum current speed Average current speed (m/sec):.31m/s Notes: Conversion dbar to Water Depth in meters: Surveyor Signed C Voisey and C Copland Page: 1 of 1 Form F-3 v-4

31 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Target and Test Identification Instrumentation BACTEC id : 13-ARSENIC Current Meter: Valeport 16 Nord Stream id: R Serial Number: 2416 Date of measurement: 2741 Control Display Unit: 16 CDU Profile No.: 24 Serial Number: Cable Reel: Position (East & North): Survey Vessel Sampling Regime 34417E & N Sampling Period: 15 seconds Heading: 18 Averaging Period: 4 Activity from Thrusters: ~2% Water Depth (m): 67m Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 21 knots Direct reading Yes Wind direction: 181 Internal Logging No Sea State: 3 Slight Swell Height 1m Notes: Pressure sensor tared? Yes Time Pressure Calculated Water Speed Direction Operator Comments Depth UTC (dbar) (m BSS) (M/s) (Deg Mag) 6: : : : : : * : : Maximum current speed (m/sec): 247 Average current speed (m/sec):.47m/s Notes: Conversion dbar to Water Depth in meters: Reading not used in calculating average current speed. * Low confidence in speed measurement, appears artificially elevated Surveyor Signed C Voisey and C Copland Page: 1 of 1 Form F-3 v-4

32 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Target and Test Identification Instrumentation BACTEC id : 8-COBALT Current Meter: Valeport 16 Nord Stream id: R-8AG-W-9 Serial Number: 2416 Date of measurement: 341 Control Display Unit: 16 CDU Profile No.: 25 Serial Number: Cable Reel: Position (East & North): Survey Vessel Sampling Regime 36113E, N Sampling Period: 15 seconds Heading: 18 Averaging Period: 4 Activity from Thrusters: <3% (with one bow thruster down) Water Depth (m): 64.3m Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 19 knots Direct reading Yes Wind direction: 21 Internal Logging no Sea State: Slight Swell Height <.8m Notes: Pressure sensor tared? yes Time Pressure Calculated Water Speed Direction Operator Comments Depth UTC (dbar) (m BSS) (M/s) (Deg Mag) 3: : : : : : : :2 *64.42 *.34 *.49 * :3 *64.14 *.2 *.34 *157.3 Maximum current speed 97 Average current speed (m/sec):.m/s Notes: Conversion dbar to Water Depth in meters: Unreliable data not used to compute average current speed * In spite of the water depth being recorded as 64.3m, we still consider the two near bed readings (which were just over m BSS) to be reliable: the instrument was not on the bed at the time the measurements were recorded and the discrepancy between total water depth and measured depth BSS can be explained by the fact that the ship s echo sounder and the mezzanine deck where the current profiling is conducted, are separated by ~3m. Surveyor Signed C Copland Page: 1 of 1 Form F-3 v-4

33 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Target and Test Identification Instrumentation BACTEC id : 9-COPPER Current Meter: Valeport 16 Nord Stream id: R-E8C-1223 Serial Number: 2416 Date of measurement: 341 Control Display Unit: 16 CDU Profile No.: 26 Serial Number: Cable Reel: Position (East & North): Survey Vessel Sampling Regime E, N Sampling Period: 15 seconds Heading: 25 Averaging Period: 4 Activity from Thrusters: ~1% Water Depth (m): 64.5m Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 6 knots 7 knots Direct reading Yes Wind direction: SSW 141 Internal Logging No Sea State: 2 2 Swell Height <.5m <.5m Notes: Pressure sensor tared? yes Time Pressure Calculated Water Speed Direction Operator Comments Depth UTC (dbar) (m BSS) (M/s) (Deg Mag) 11: : : : : : : : : : : Maximum current speed Average current speed (m/sec):.7m/s Notes: Conversion dbar to Water Depth in meters: Where duplicate readings were taken at the same water depth (high-lighted in green): an average was calculated, before calculating the average for the entire profile. Surveyor Signed Page: 1 of 1 Form F-3 v-4

34 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Noordhoek Singapore Target and Test Identification Instrumentation BACTEC id : 127-Germanium Current Meter: Valeport 16 Nord Stream id: R Serial Number: Date of measurement: 27/4/21 Control Display Unit: 16 CDU Profile No.: 1 Serial Number: 246 Survey Vessel Sampling Regime Position (Lat & Long): N, E Sampling Period: 15 seconds Heading: Averaging Period: 4 Activity from Thrusters: Minimum Water Depth (m): 59m Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 18 knots Direct reading X Wind direction: South Internal Logging Sea State: 2 Swell Height <.5m Notes: Pressure sensor tared? X Time Pressure Speed Direction Operator Comments UTC (dbar) (M/s) (Deg Mag) 5: : : : : : : Maximum current speed (m/sec):.17 Average current speed (m/sec):. Notes: Surveyor Barbara Hume Page: 1 of 1 Form F-3 v-2

35 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Noordhoek Singapore Target and Test Identification Instrumentation BACTEC id : 127-Germanium Current Meter: Valeport 16 Nord Stream id: R Serial Number: Date of measurement: 28/4/21 Control Display Unit: 16 CDU Profile No.: 2 Serial Number: 246 Survey Vessel Sampling Regime Position (Lat & Long): N, E Sampling Period: 15 seconds Heading: 341 Averaging Period: 4 Activity from Thrusters: Minimum Water Depth (m): 6m Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 16 knots 14 knots Direct reading X Wind direction: North North Internal Logging Sea State: 3 2 Swell Height.5m <.5m Notes: Pressure sensor tared? X Time Pressure Speed Direction Operator Comments UTC (dbar) (M/s) (Deg Mag) 2: : : : : : : : : Maximum current speed (m/sec):.293 Average current speed (m/sec):.96 Notes: The swell was approximately.5 m during the first measurement due to the winds speed and direction; this may have caused an increase of current speed at the surface. Since the near surface measurement was greater than.3 m/s, a second measurement was conducted at 2:46 after the profile was complete, recording a current speed of.87 m/s allowing detonation to commence. Surveyor Barbara Hume Page: 1 of 1 Form F-3 v-2

36 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Target and Test Identification Instrumentation BACTEC id : 119-IRIDIUM Current Meter: Valeport 16 Nord Stream id: R Serial Number: 2416 Date of measurement: 641 Control Display Unit: 16 CDU Profile No.: 1 Serial Number: Position (East & North): Survey Vessel Sampling Regime E, 7937N Sampling Period: 15 seconds Heading: 21 Averaging Period: 4 Activity from Thrusters: % Water Depth (m): 14 Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 12 knots Direct reading Yes Wind direction: NW Internal Logging No Sea State: Slight Swell Height <.8m Notes: Pressure sensor tared? Yes Time Pressure Water Depth Speed Direction Operator Comments UTC (dbar) (m BSS) (M/s) (Deg Mag) 4: : : : : : : : : : Unreliable bottom reading Maximum current speed (m/sec):.17@121 Average current speed (m/sec):.3 Notes: Conversion dbar to Water Depth in meters: Surveyor Signed Page: 1 of 1 Form F-3 v-3

37 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Target and Test Identification Instrumentation BACTEC id : 1-LEAD Current Meter: Valeport 16 Nord Stream id: R Serial Number: 2416 Date of measurement: 1141 Control Display Unit: 16 CDU Profile No.: 13 Serial Number: Survey Vessel Sampling Regime Position (East/North): 92923mE, 937mN Sampling Period: 15 seconds Heading: NE Averaging Period: 4 Activity from Thrusters: <2% Water Depth (m): 77.8 Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 4 knots (F2) 1knots (F3) Direct reading yes Wind direction: NNE NNE Internal Logging no Sea State: Smooth (2) Slight (3) Swell Height <.3m <.5m Notes: Wind strengthened during profile Pressure sensor tared? yes Time Calculated Depth Pressure Speed Direction Operator Comments UTC (mbss) (dbar) (m/s) (Deg Mag) 6: : : : : : : : Maximum current speed Average current speed (m/sec):.86m/s Notes: Surveyor Signed C Voisey, C Copland & J Sheppard Page: 1 of 1 Form F-3 v-2

38 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Target and Test Identification Instrumentation BACTEC id : 118-OSMIUM Current Meter: Valeport 16 Nord Stream id: R Serial Number: 2416 Date of measurement: 941 Control Display Unit: 16 CDU Profile No.: 11 Serial Number: Position (East & North): Survey Vessel Sampling Regime 56939E/8661N Sampling Period: 15 seconds Heading: 11 Averaging Period: 4 Activity from Thrusters: ~25% Water Depth (m): m Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 12 knots Direct reading Yes Wind direction: 17 Internal Logging No Sea State: 2 Swell Height <.5m Notes: Pressure sensor tared? Yes Time Pressure Water Depth Speed Direction Operator Comments UTC (dbar) (m BSS) (M/s) (Deg Mag) 3: : : : : : : : ~4m taken at the end of current metering due to erroneous initial reading Maximum current speed (m/sec):.84@272 Average current speed (m/sec):.42 Notes: Conversion dbar to Water Depth in meters: Surveyor Signed C Voisey, C Copland and J Sheppard Page: 1 of 1 Form F-3 v-3

39 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Target and Test Identification Instrumentation BACTEC id : 23-PALLADIUM Current Meter: Valeport 16 Nord Stream id: R-9-31 Serial Number: 2416 Date of measurement: 2441 (First Hit) Control Display Unit: 16 CDU Profile No.: 21 Serial Number: Cable Reel: Position (East & North): Survey Vessel Sampling Regime E & N Sampling Period: 15 seconds Heading: NNE 16 Averaging Period: 4 Activity from Thrusters: <13% Water Depth (m): 59.6 Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 2 knots Direct reading Yes Wind direction: WNW 296 Internal Logging No Sea State: 1 Swell Height <.2m Notes: Pressure sensor tared? Yes Time Pressure Calculated Water Speed Direction Operator Comments Depth UTC (dbar) (m BSS) (M/s) (Deg Mag) 5: : : : : : : Maximum current speed 57 Average current speed (m/sec):.39 Notes: Conversion dbar to Water Depth in meters: Reading 5:11 deemed unreliable and not used in calculation of average. Surveyor Signed C Copland Page: 1 of 1 Form F-3 v-4

40 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Target and Test Identification Instrumentation BACTEC id : 23-PALLADIUM Current Meter: Valeport 16 Nord Stream id: R-9-31 Serial Number: 2416 Date of measurement: 2541 (Second Hit) Control Display Unit: 16 CDU Profile No.: 22 Serial Number: Cable Reel: Position (East & North): Survey Vessel Sampling Regime 34449E & N Sampling Period: 15 seconds Heading: 14 Averaging Period: 4 Activity from Thrusters: ~3% Water Depth (m): 61.5m Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 14 knots Direct reading Yes Wind direction: W Internal Logging No Sea State: Slight - 3 Swell Height <1m Notes: Pressure sensor tared? Yes Time Pressure Calculated Water Speed Direction Operator Comments Depth UTC (dbar) (m BSS) (M/s) (Deg Mag) 2: : : : : : : : Maximum current speed Average current speed (m/sec):.58 Notes: Conversion dbar to Water Depth in meters: Not included in average speed calculation Surveyor Signed C Voisey and C Copland Page: 1 of 1 Form F-3 v-4

41 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Target and Test Identification Instrumentation BACTEC id : 131-PHOSPHORUS Current Meter: Valeport 16 Nord Stream id: R Serial Number: 2416 Date of measurement: 1641 Control Display Unit: 16 CDU Profile No.: 16 Serial Number: 273 Position (East & North): Survey Vessel Sampling Regime 337 & Sampling Period: 15 seconds Heading: 7 Averaging Period: 4 Activity from Thrusters: <24% Water Depth (m): 47 Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 5 knots (F2) Direct reading Yes Wind direction: N Internal Logging No Sea State: 1 Swell Height <.3m Notes: Pressure sensor tared? Yes Time Pressure Calculated Water Speed Direction Operator Comments Depth UTC (dbar) (m BSS) (M/s) (Deg Mag) 11: : : : : : Maximum current speed (m/sec):.184@259 Average current speed (m/sec):. Notes: Conversion dbar to Water Depth in meters: At set-up, a communication problem was encountered with the instrument. The problem was rectified by replacing the cable on the drum reel and the surface control unit with the spare units which were standing by. Surveyor Signed C Copland and J Sheppard Page: 1 of 1 Form F-3 v-3

42 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Target and Test Identification Instrumentation BACTEC id : 131-PHOSPHORUS Current Meter: Valeport 16 Nord Stream id: R Serial Number: 2416 Date of measurement: 1741 (2 nd Hit) Control Display Unit: 16 CDU Profile No.: 17 Serial Number: 273 Position (East & North): Survey Vessel Sampling Regime E & N Sampling Period: 15 seconds Heading: 73 Averaging Period: 4 Activity from Thrusters: <2% Water Depth (m): 52.9 Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 12 knots (F4) Direct reading Yes Wind direction: WNW Internal Logging No Sea State: 3 - slight Swell Height <.6m Notes: Pressure sensor tared? Yes Time Pressure Calculated Water Speed Direction Operator Comments Depth UTC (dbar) (m BSS) (M/s) (Deg Mag) 2: : : : : : : : Maximum current speed (m/sec):.152@131 Average current speed (m/sec):.2 Notes: Conversion dbar to Water Depth in meters: Unreliable current speed and directional data returned throughout the water column as incorrect fish coupling was noted at the end of the profile. Surveyor Signed C Copland and C Voisey Page: 1 of 1 Form F-3 v-3

43 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Target and Test Identification Instrumentation BACTEC id : 24-PLATINUM Current Meter: Valeport 16 Nord Stream id: R-9-4 Serial Number: 2416 Date of measurement: 1841 Control Display Unit: 16 CDU Profile No.: 18 Serial Number: 273 Position (East & North): Survey Vessel Sampling Regime & Sampling Period: 15 seconds Heading: 214 Averaging Period: 4 Activity from Thrusters: <15% Water Depth (m):.1m Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 13 knots 8 knots Direct reading Yes Wind direction: SSW SW Internal Logging No Sea State: 2 2 Swell Height <.3m <.3m Notes: Pressure sensor tared? Yes Time Pressure Calculated Water Speed Direction Operator Comments Depth UTC (dbar) (m BSS) (M/s) (Deg Mag) 5: : : : : : : : Maximum current speed (m/sec):.237@18 Average current speed (m/sec):.73m/s Notes: Conversion dbar to Water Depth in meters: Surveyor Signed C Voisey and C Copland Page: 1 of 1 Form F-3 v-3

44 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Target and Test Identification Instrumentation BACTEC id : 25-POTASSIUM Current Meter: Valeport 16 Nord Stream id: R Serial Number: 2416 Date of measurement: 241 Control Display Unit: 16 CDU Profile No.: 19 Serial Number: 273 Position (East & North): Survey Vessel Sampling Regime 334E, 66143N Sampling Period: 15 seconds Heading: 22 Averaging Period: 4 Activity from Thrusters: <28% Water Depth (m): 59.2 Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 8 Knots (F3) 9 Knots (F3) Direct reading yes Wind direction: W W Internal Logging no Sea State: 2 2 Swell Height <.3 <.3 Notes: Pressure sensor tared? yes Time Pressure Calculated Water Speed Direction Operator Comments Depth UTC (dbar) (m BSS) (M/s) (Deg Mag) 2: : : : : : : : Maximum current speed 25 Average current speed (m/sec):.72 Notes: Conversion dbar to Water Depth in meters: These readings are deemed unreliable and accordingly have not used to compute the average current speed. Surveyor Signed C Voisey & C Copland Page: 1 of 1 Form F-3 v-3

45 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Target and Test Identification Instrumentation BACTEC id : 26-SILVER Current Meter: Valeport 16 Nord Stream id: R Serial Number: 2416 Date of measurement: 1441 (1 st Hit) Control Display Unit: 16 CDU Profile No.: 15 Serial Number: Position (East & North): Survey Vessel Sampling Regime E & 66268N Sampling Period: 15 seconds Heading: 336 Averaging Period: 4 Activity from Thrusters: <18% Water Depth (m): 8.3m Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 13 knots 14 knots Direct reading Yes Wind direction: NNW (346 ) NNW (348 ) Internal Logging No Sea State: Swell Height <.5m <.5m Notes: Pressure sensor tared? Yes Time Pressure Calculated Water Speed Direction Operator Comments Depth UTC (dbar) (m BSS) (M/s) (Deg Mag) 4: : : : : : : O4: Maximum current speed (m/sec):.21@74 Average current speed (m/sec):.9 Notes: Conversion dbar to Water Depth in meters: Surveyor Signed C Copland and J Sheppard Page: 1 of 1 Form F-3 v-3

46 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Target and Test Identification Instrumentation BACTEC id : 28-SULPHUR Current Meter: Valeport 16 Nord Stream id: R-12-8 Serial Number: 2416 Date of measurement: 141 Control Display Unit: 16 CDU Profile No.: 12 Serial Number: Survey Vessel Sampling Regime Position (East/North): E & 943N Sampling Period: 15 seconds Heading: NW Averaging Period: 4 Activity from Thrusters: <42% Water Depth (m): 66.9 Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 9 knots (F3) Direct reading yes Wind direction: NNE Internal Logging no Sea State: Slight (3) Swell Height <.8m Notes: Pressure sensor tared? yes Time Calculated Depth Pressure Speed Direction Operator Comments UTC (mbss) (dbar) (m/s) (Deg Mag) 1: : : : : : : : Maximum current speed 14 Average current speed (m/sec):.m/s Notes: Surveyor Signed C Voisey, C Copland & J Sheppard Page: 1 of 1 Form F-3 v-2

47 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Target and Test Identification Instrumentation BACTEC id : 29-XENON Current Meter: Valeport 16 Nord Stream id: R Serial Number: 2416 Date of measurement: 2241 Control Display Unit: 16 CDU Profile No.: 2 Serial Number: 273 Position (East & North): Survey Vessel Sampling Regime E, 886N Sampling Period: 15 seconds Heading: 12 Averaging Period: 4 Activity from Thrusters: <2% Water Depth (m): 7m Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 6 knots Direct reading Yes Wind direction: 1 Internal Logging No Sea State: 2 Swell Height <.3m Notes: Pressure sensor tared? Yes Time Pressure Calculated Water Speed Direction Operator Comments Depth UTC (dbar) (m BSS) (M/s) (Deg Mag) 2: : : : : : : O3: : Maximum current speed (m/sec): Average current speed (m/sec):.56 Notes: Conversion dbar to Water Depth in meters: Reel #16149 used; cable fixed by drying out. Surveyor Signed C Voisey and C Copland Page: 1 of 1 Form F-3 v-3

48 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Noordhoek Singapore Target and Test Identification Instrumentation BACTEC id : 21-Zinc Current Meter: Valeport 16 Nord Stream id: R-9-27 Serial Number: Date of measurement: 3/4/21 Control Display Unit: 16 CDU Profile No.: 3 Serial Number: 271 Cable Reel: 1615 Position (East & North): Survey Vessel Sampling Period: Sampling Regime 15 seconds Heading: 16 Averaging Period: 4 Activity from Thrusters: minimum Water Depth (m): 7 Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 1 Direct reading Yes Wind direction: SW Internal Logging No Sea State: 1 Swell Height <.25 m Notes: Pressure sensor tared? Yes Time Pressure Calculated Water Speed Direction Operator Comments Depth UTC (dbar) (m BSS) (M/s) (Deg Mag) 7: : : : : : : : Maximum current speed (m/sec):.18 Average current speed (m/sec):. Notes: Conversion dbar to Water Depth in meters: Surveyor Signed Barbara Hume Page: 1 of 1 Form F-3 v-4

49 NS Final Munitions Clearance Monitoring Report FIN EEZ Rev A: 19 Sep 21 Liite 4.3 Virtausten tarkkailutulokset toukokuussa 21 Kuvaus Tässä liitteessä esitetään kaikki virtausten tarkkailutulokset, jotka liittyvät ammusten raivaukseen toukokuussa 21, ja ne on raportoitu Uudenmaan ja Lounais-Suomen ELY-keskuksille kohdassa /89/ mainitulla tiedoksiannolla 15 (katso pääraportin taulukko 1.2) määräysten 4 (ammuslupa) ja 19 (vesilupa) mukaisesti.

50 Liite 4.3 Virtausten seuranta, toukokuun raivaukset Liite 4.3 Virtausten seuranta, toukokuun raivaukset Raivatut ammukset Taulukko A4.3.1 Toukokuussa 21 raivatut ammukset on lueteltu taulukossa A4.3.1 raivaamispäiväjärjestyksessä. Mainitut päivämäärät ovat päiviä, jolloin raivausyrityksiä tehtiin, ja viimeinen päivämäärä on se, jolloin raivaus onnistui. Ammusten F9, F1, F15B, F12, F17, F37 ja F38 raivaaminen vaati kaksi yritystä, ammusten F13 ja F14 kolme yritystä. Ammusten F39 ja F27 oletettiin alun perin tulleen raivatuksi jo huhtikuussa, mutta lopputarkastus ennen ammusjäänteiden nostamista antoi aihetta huoleen, ja nämä ammukset raivattiin lopullisesti toukokuussa. Tiedot raivattujen ammusten sijainnista on esitetty liitteessä 1. F39 Yhteenveto 23:sta toukokuussa 21 raivatusta ammuksesta (mukaan luettuina kaksi ammusta, jotka sisältyvät myös huhtikuun 21 raivausraporttiin). NSP BACTECtunnus (C16) kg TNT päivä KP Panos Raivaus- tunnus ROV-tunnus Alus F4 8-R-9 Thallium NHS F9 R-8CG-E-4 Gold EF F8 R-W8A-1317 Tungsten EF F18 R Nitrogen NHS F1 R-8CG-E-3 Helium EF F15 R-8CG-E-2 Magnesium EF R Germanium F15B R Indium F27 R Xenon ( ) ( ) F11 R-W8A-1312 Hydrogen EF F46 R Hafnium NHS F R Samarium NHS F14 R-W8A-15 Lithium EF F12 R-W8A-1313 Iron EF F13 R-8-9 Krypton EF F16 R-8CG-E-1 Neon EF F17 R-8-2 Nickel EF F43 R Polonium EF F37 R Rhodium EF F44 R-8-27 Thorium NHS F38B R-8-1-FAB Terbium EF F38 R-8-77 Gallium EF NHS EF NHS Witteveen+Bos Sivu 1 / 2

51 Liite 4.3 Virtausten seuranta, toukokuun raivaukset F38C R-8-2-FAB Fluorine EF Huomautus: EF tarkoittaa tukialus Edda Freyaa ja NHS tukialus Noordhoek Singaporea. Virtausten nopeusprofiilit Virtausprofiilit Kun mittaustulokset esitetään veden syvyyden suhteen laadittuina virtausnopeusprofiileina, nähdään, onko muissa kuin pintakerroksissa ollut merkittäviä virtauksia. Kunkin profiilin alin piste esittää veden syvyyttä mittauspisteessä virtausnopeudella nolla. 1 2 Water Depth (m) 3 4 F46 Hafnium 5 F1 Helium 6 7 F1 Helium (2nd hit) F11 Hydrogen F15B Indium Current Velocity (m/s) Kuva A4.3.1 Mitatut virtausnopeudet veden syvyyden funktiona ennen ammusten F1, F11, F15B ja F46 raivausta. 1 2 Water Depth (m) F12 Iron; F14 Lithium; F13 Krypton F13 Krypton F14 Lithium F15 Magnesium and F15B Indium F16 Neon F Samarium F27 Xenon F12 Iron; F14 Lithium; F13 Krypton Current Velocity (m/s) Kuva A4.3.2 Mitatut virtausnopeudet veden syvyyden funktiona ennen ammusten F12, F13, F14, F15, F16, F27 ja F raivausta. Witteveen+Bos Sivu 2 / 2

52 Liite 4.3 Virtausten seuranta, toukokuun raivaukset Water Depth (m) F17 NICKEL F17 NICKEL (2nd hit) F27 XENON F37 RHODIUM 7 F37 RHODIUM (2nd hit) F44 THORIUM Current Velocity (m/s) Kuva A4.3.3 Mitatut virtausnopeudet veden syvyyden funktiona ennen ammusten F17, F27, F37 ja F44 raivausta. 1 2 Water Depth (m) 3 4 F47 TERBIUM 5 F38 GALLIUM 6 F38 GALLIUM (second hit) 7 F48 FLUORINE Current Velocity (m/s) Kuva A4.3.4 Mitatut virtausnopeudet veden syvyyden funktiona ennen ammusten F38, F47 ja F48 raivausta. Havainnot Tärkeimmät virtausprofiileista tehdyt havainnot ovat seuraavat: Yleensä virtausnopeudet ylemmissä kerroksissa ovat hieman suurempia kuin alemmissa kerroksissa; Pohjan läheiset (alle 5 metriä merenpohjan yläpuolella) virtausnopeudet ovat yleensä hyvin pieniä, alle,1 m/s, ja aina alle kriteerin,3 m/s; Toukokuun 1. ja 17. päivän välisenä aikana pohjavirtausten nopeus on noussut ollen,2 m/s, ja yhdellä mittauskerralla havaittiin,25 m/s virtausnopeus 1 m merenpohjan yläpuolelta; Samana ajanjaksona virtausnopeudet vesipatsaan alaosassa olivat hieman suurempia kuin sen yläosassa; Virtausnopeuden vaihtelut vesipatsaan eri osissa ovat merkittäviä. Witteveen+Bos Sivu 3 / 2

53 Liite 4.3 Virtausten seuranta, toukokuun raivaukset Johtopäätökset Yhteenvetona esitämme johtopäätöksen, että virtausnopeudet olivat pieniä ja että ammusten raivaus hoidettiin asiaa koskevien lupaehtojen mukaisesti. Mitatut virtausnopeudet ovat YVA:ssa mainittujen ennustettujen nopeuksien rajoissa eivätkä anna aihetta muuttaa YVA:ssa esitettyjä arvioita tai sen jälkeen tehtyjä ammuskohtaisia arvioita. F8 - Tungsten Virtausmittarien toimintahäiriön takia ei virtausnopeuksia voitu mitata ennen ammuksen F8-Tungsten räjäyttämistä kohdassa KP Virtausmittauksia kuitenkin tehtiin ammuksen F9 Gold kohdalla sijainnissa KP noin klo 6 aamulla , 12 tuntia ennen ammuksen F8 Tungsten räjäyttämistä noin klo 18 samana päivänä Tukialukselta tehtyjen säähavaintojen mukaan säässä ei päivän kuluessa tapahtunut merkittäviä muutoksia, ja se on perusteluna lausumalle, että virtausolot olivat räjäyttämisen kannalta hyväksyttäviä myös klo 18. Witteveen+Bos Sivu 4 / 2

54 Liite 4.3 Virtausten seuranta, toukokuun raivaukset Virtausruusut ja 3D-diagrammit Tämä osa Tämä osa sisältää niiden ennen räjäytyksiä tehtyjen virtausmittausten tulokset. Mittauksilla varmistettiin, ettei meressä ollut voimakkaita Viroon päin suuntautuvia virtauksia. Tulokset on esitetty aikajärjestyksessä (ei ammusten F-numeron mukaisessa järjestyksessä). Mittausmenetelmä on selostettu liitteen 4 alussa. Tulokset on esitettyvirtausruusuina ja 3D-diagrammeina Ammuksen F4 - Thallium, raivaus Kuva A Location and data Havaitut virtausolot ennen ammuksen F4 raivausta. Measuringdepth (m below water surface) Limit Threshold Average of relevan Percentage relevan Witteveen+Bos Sivu 5 / 2

55 Liite 4.3 Virtausten seuranta, toukokuun raivaukset Ammuksen F9 - Gold raivaus (ensimmäinen yritys) Kuva A Location and data Measuringdepth (m below water surface) Havaitut virtausolot ennen ammuksen F9 ensimmäistä raivausyritystä. Limit Threshold Average of releva Percentage releva Ammuksen F9 - Gold raivaus (toinen yritys) Kuva A Location and data Measuringdepth (m below water surface) Limit Threshold Average of relevan Percentage releva Havaitut virtausolot ennen ammuksen F9 toista, onnistunutta raivausyritystä. Witteveen+Bos Sivu 6 / 2

56 Liite 4.3 Virtausten seuranta, toukokuun raivaukset Ammuksen F8 - Tungsten raivaus. Virtausmittaus ennen ammuksen F8 Tungsten raivausta epäonnistui. Ammuksen F8 Tungsten raivaus tapahtui 12 tuntia ammuksen F9 Gold virtausmittausten jälkeen, ks. kuva A Ammuksen F18 - Nitrogen raivaus Kuva A Location and data Havaitut virtausolot ennen ammuksen F18 raivausta. Measuringdepth (m below water surface) Limit Threshold Average of relevan Percentage relevan Ammuksen F1 - Helium raivaus (ensimmäinen yritys) Kuva A Location and data Measuringdepth (m below water surface) Limit Threshold Average of relevan Percentage releva Havaitut virtausolot ennen ammuksen F1 (ensimmäistä) raivausyritystä. Witteveen+Bos Sivu 7 / 2

57 Liite 4.3 Virtausten seuranta, toukokuun raivaukset Ammuksen F1 - Helium raivaus (toinen ja lopullinen yritys) Kuva A Location and data Measuringdepth (m below water surface) Limit Threshold Average of relevan Percentage releva Havaitut virtausolot ennen ammuksen F1 (toista, lopullista) raivausyritystä Ammuksen F39 - Germanium raivaus (toinen ja lopullinen yritys) Kuva A Location and data Havaitut virtausolot ennen ammuksen F39 lopullista raivausta. Measuringdepth (m below water surface) Limit Threshold Average of relevan Percentage relevan Witteveen+Bos Sivu 8 / 2

58 Liite 4.3 Virtausten seuranta, toukokuun raivaukset Ammusten F15 - Magnesium ja F15B - Indium yhdistetty raivaus Kuva A Location and data Measuringdepth (m below water surface) Limit Threshold Average of releva Percentage releva Havaitut virtausolot ennen ammuksen F15 ja F15B yhdistettyä raivausyritystä, jossa ammuksen F15 raivaus onnistui Ammuksen F15B - Indium raivaus (toinen ja lopullinen yritys) Kuva A Location and data Havaitut virtausolot ennen ammuksen F15B toista, onnistunutta raivausyritystä. Measuringdepth (m below water surface) Limit Threshold Average of relevan Percentage releva Witteveen+Bos Sivu 9 / 2

59 Liite 4.3 Virtausten seuranta, toukokuun raivaukset Ammuksen F27 - Xenon raivaus (toinen ja lopullinen yritys) Kuva A Location and data Measuringdepth (m below water surface) Limit Threshold Average of relevan Percentage relevan Havaitut virtausolot ennen ammuksen F27 toista, onnistunutta raivausyritystä Ammuksen F11 - Hydrogen raivaus Kuva A Location and data Havaitut virtausolot ennen ammuksen F11 raivausta. Measuringdepth (m below water surface) Limit Threshold Average of relevan Percentage releva Witteveen+Bos Sivu 1 / 2

60 Liite 4.3 Virtausten seuranta, toukokuun raivaukset Ammuksen F46 - Hafnium raivaus Kuva A Location and data Havaitut virtausolot ennen ammuksen F46 raivausta. Measuringdepth (m below water surface) Limit Threshold Average of relevan Percentage releva Ammusten F12 - Iron, F13 - Krypton ja F14 - Lithium yhtäaikainen raivaus Kuva A Location and data Havaitut virtausolot ennen ammusten F12, F13 ja F14 ensimmäistä raivausyritystä. Measuringdepth (m below water surface) Limit Threshold Average of relevan Percentage relevan Witteveen+Bos Sivu 11 / 2

61 Liite 4.3 Virtausten seuranta, toukokuun raivaukset Ammuksen F - Samarium raivaus Kuva A Location and data Havaitut virtausolot ennen ammuksen F raivausta. Measuring depth (m below water surface) Limit Threshold Average of relevan Percentage relevan Ammusten F12 - Iron, F13 - Krypton ja F14 - Lithium yhtäaikainen raivaus Kuva A Location and data Measuringdepth (m below water surface) Limit Threshold Average of relevan Percentage releva Havaitut virtausolot ennen ammusten F12, F13 ja F14 toista raivausyritystä. Witteveen+Bos Sivu 12 / 2

62 Liite 4.3 Virtausten seuranta, toukokuun raivaukset Ammuksen F14 - Lithium kolmas ja lopullinen raivausyritys Kuva A Location and data Measuringdepth (m below water surface) Limit Threshold Average of relevan Percentage releva Havaitut virtausolot ennen ammuksen F14 kolmatta, lopullista raivausyritystä Ammusten F12 Iron ja F13 - Krypton kolmas ja lopullinen raivausyritys Kuva A Location and data Havaitut virtausolot ennen ammusten F12 ja F13 kolmatta, lopullista raivausyritystä. Measuringdepth (m below water surface) Limit Threshold Average of releva Percentage releva Witteveen+Bos Sivu 13 / 2

63 Liite 4.3 Virtausten seuranta, toukokuun raivaukset Ammuksen F16 - Neon raivaus Kuva A Location and data Havaitut virtausolot ennen ammuksen F16 raivausta. Measuringdepth (m below water surface) Limit Threshold Average of relevan Percentage relevan Ammuksen F17 - Nickel raivaus (ensimmäinen yritys) Kuva A Location and data Measuringdepth (m below water surface) Limit Threshold Havaitut virtausolot ennen ammuksen F17 ensimmäistä raivausyritystä. Average of relevan Percentage relevan Witteveen+Bos Sivu 14 / 2

64 Liite 4.3 Virtausten seuranta, toukokuun raivaukset Ammuksen F17 - Nickel raivaus (toinen ja lopullinen yritys) Kuva A Location and data Measuringdepth (m below water surface) Limit Threshold Average of relevan Percentage relevan Havaitut virtausolot ennen ammuksen F17 toista, onnistunutta raivausyritystä Ammuksen F43 - Polonium raivaus Kuva A Location and data Havaitut virtausolot ennen ammuksen F43 raivausta. Measuringdepth (m below water surface) Limit Threshold Average of relevan Percentage releva Witteveen+Bos Sivu 15 / 2

65 Liite 4.3 Virtausten seuranta, toukokuun raivaukset Ammuksen F37 - Rhodium raivaus (ensimmäinen yritys) Kuva A Location and data Measuringdepth (m below water surface) Limit Threshold Havaitut virtausolot ennen ammuksen F37 ensimmäistä raivausyritystä. Average of relevan Percentage releva Ammuksen F44 - Thorium raivaus Kuva A Location and data Havaitut virtausolot ennen ammuksen F44 raivausta. Measuringdepth (m below water surface) Limit Threshold Average of relevan Percentage releva Witteveen+Bos Sivu 16 / 2

66 Liite 4.3 Virtausten seuranta, toukokuun raivaukset Ammuksen F37 - Rhodium raivaus (toinen ja lopullinen yritys) Kuva A Location and data Measuringdepth (m below water surface) Limit Threshold Average of relevan Percentage releva Havaitut virtausolot ennen ammuksen F37 toista, onnistunutta raivausyritystä Ammuksen F46 - Terbium raivaus Kuva A Location and data Havaitut virtausolot ennen ammuksen F38B raivausta. Measuringdepth (m below water surface) Limit Threshold Average of relevan Percentage releva Witteveen+Bos Sivu 17 / 2

67 Liite 4.3 Virtausten seuranta, toukokuun raivaukset Ammuksen F38 - Gallium raivaus (ensimmäinen yritys) Kuva A Location and data Measuringdepth (m below water surface) Limit Threshold Havaitut virtausolot ennen ammuksen F38 ensimmäistä raivausyritystä. Average of relevan Percentage releva Ammuksen F38 - Gallium raivaus (toinen ja lopullinen yritys) Kuva A Location and data Measuringdepth (m below water surface) Limit Threshold Average of relevan Percentage releva Havaitut virtausolot ennen ammuksen F38 toista, onnistunutta raivausyritystä. Witteveen+Bos Sivu 18 / 2

68 Liite 4.3 Virtausten seuranta, toukokuun raivaukset Ammuksen F38C - Fluorine raivaus Kuva A Location and data Havaitut virtausolot ennen ammuksen F38C raivausta. Measuringdepth (m below water surface) Limit Threshold Average of relevan Percentage releva Witteveen+Bos Sivu 19 / 2

69 Liite 4.3 Virtausten seuranta, toukokuun raivaukset Tallennetut virtaustiedot Tämä osa Tässä osassa on esitetty kaikki tukialuksilta M/V Edda Freya ja DSV Noordhoek Singapore ennen räjäytyksiä mitatut virtausten tarkkailutiedot. Tiedot on esitetty BABTEC-tunnusten mukaisessa aakkosjärjestyksessä. Tietojen tarkastelun helpottamiseksi seuraavassa taulukossa on esitetty myös BABTEC-tunnuksia vastavat NSP- ja ROV-tunnukset. Taulukko A4.3.2 Yhteenveto raivatuista ammuksista BABTEC-tunnuksen mukaisessa järjestyksessä. NSP BACTECtunnus (C16) kg TNT päivä KP Panos Raivaus- tunnus ROV-tunnus Alus F38C R-8-2-FAB Fluorine EF F38 R-8-77 Gallium EF F39 R-8- ( ) 2169 Germanium NHS F9 R-8CG-E-4 Gold EF F46 R Hafnium NHS F1 R-8CG-E-3 Helium EF F11 R-W8A-1312 Hydrogen EF F15B R Indium EF F12 R-W8A-1313 Iron EF F13 R-8-9 Krypton EF F14 R-W8A-15 Lithium EF F15 R-8CG-E-2 Magnesium EF F16 R-8CG-E-1 Neon EF F17 R-8-2 Nickel EF F18 R Nitrogen NHS F43 R Polonium EF F37 R Rhodium EF F R Samarium NHS F38B R-8-1-FAB Terbium EF F4 8-R-9 Thallium NHS F44 R-8-27 Thorium NHS F8 R-W8A-1317 Tungsten EF F27 R Xenon ( ) NHS Witteveen+Bos Sivu 2 / 2

70 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Target and Test Identification BACTEC id : 142-FLUORINE Nord Stream id: R-8-2-FAB-FLUORINE Current Meter Model and S/N: Control Display Unit and S/N: Instrumentation Valeport CDU Date of measurement: 3151 Cable Reel S/N: 1615 Profile No.: 48 Survey Vessel Sampling Regime Position (East & North): 37837E/663728N Sampling Period: 15 seconds Heading: 257 Averaging Period: 4 Activity from Thrusters: <25% DP Current Speed & Dirn.:.5 knots & 13 Water Depth (m): 74.6m Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 7 knots Direct reading Yes Wind direction: 111 Internal Logging No Sea State: Swell Height Pressure sensor tared? Yes Time Pressure Calculated Water Depth Current Speed Current Direction UTC (dbar) (m BSS) (m/s) (Deg Mag) 12: Operator Comments 12: : : : : : : Maximum current speed (m/sec): Average current speed (m/sec):. m/s Notes: Conversion dbar to Water Depth in meters: Surveyor Signed C Voisey Page: 1 of 1 Form F-3 v-6

71 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Target and Test Identification BACTEC id : 126-GALLIUM Nord Stream id: R-8-77 Current Meter Model and S/N: Control Display Unit and S/N: Instrumentation Valeport CDU Date of measurement: 21 Cable Reel S/N: 1615 Profile No.: 46 Survey Vessel Sampling Regime Position (East & North): E, N Sampling Period: 15 seconds Heading: 279 Averaging Period: 4 Activity from Thrusters: <3% DP Current Speed & Dirn.:.9knots 126 Water Depth (m): 73.m Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 4 knots Direct reading Yes Wind direction: 2 Internal Logging No Sea State: 2 Swell Height <.7m Pressure sensor tared? Yes Time Pressure Calculated Water Depth Current Speed Current Direction UTC (dbar) (m BSS) (m/s) (Deg Mag) 13: Operator Comments 13: : : : : : : : : Triplicate readings. Average 7.2m BSS=.17m/s Maximum current speed Average current speed (m/sec):.163m/s Notes: Conversion dbar to Water Depth in meters: Surveyor Signed C Voisey & C Copland Page: 1 of 1 Form F-3 v-5

72 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Target and Test Identification BACTEC id : 126-GALLIUM Nord Stream id: R-8-77 Current Meter Model and S/N: Control Display Unit and S/N: Instrumentation Valeport CDU Date of measurement: 1 Cable Reel S/N: 1615 Profile No.: 47 Survey Vessel Sampling Regime Position (East & North): E/ N Sampling Period: 15 seconds Heading: 266 Averaging Period: 4 Activity from Thrusters: ~2% DP Current Speed & Dirn.: 1 knot & 18 Water Depth (m): 74.8 Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 13 knots Direct reading Yes Wind direction: 233 Internal Logging No Sea State: 3 Swell Height 1m Pressure sensor tared? Yes Time Pressure Calculated Water Depth Current Speed Current Direction UTC (dbar) (m BSS) (m/s) (Deg Mag) 6: Operator Comments 6: : : : : : : : Unreliable reading, not used in calculating average 7: Maximum current speed 1 Average current speed (m/sec):.44m/s Notes: Conversion dbar to Water Depth in meters: Surveyor Signed C Voisey and C Copland Page: 1 of 1 Form F-3 v-6

73 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Noordhoek Singapore Target and Test Identification Instrumentation BACTEC id : 127-Germanium Current Meter: Valeport 16 Nord Stream id: R Serial Number: Date of measurement: 1/5/1 Control Display Unit: 16 CDU Profile No.: 6 Serial Number: 271 Cable Reel: 1615 Position (East & North): Survey Vessel Sampling Period: Sampling Regime 15 seconds Heading: 192 Averaging Period: 4 Activity from Thrusters: Minimum Water Depth (m): 63m Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 8 knots Direct reading Yes Wind direction: WSW Internal Logging No Sea State: 2 Swell Height <.25m Notes: Pressure sensor tared? Yes Time Pressure Calculated Water Speed Direction Operator Comments Depth UTC (dbar) (m BSS) (M/s) (Deg Mag) 4: : : : : : : Maximum current speed (m/sec):.5 Average current speed (m/sec):.22 Notes: Conversion dbar to Water Depth in meters: Surveyor Signed Barbara Hume Page: 1 of 1 Form F-3 v-4

74 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Target and Test Identification Instrumentation BACTEC id : 11-GOLD Current Meter: Valeport 16 Nord Stream id: R-8CG-E4 Serial Number: 2416 Date of measurement: 251 Control Display Unit: 16 CDU Profile No.: 27 Serial Number: Cable Reel: Position (East & North): Survey Vessel Sampling Regime 93E & N Sampling Period: 15 seconds Heading: 246 Averaging Period: 4 Activity from Thrusters: <4% - only 1 bow thruster working Water Depth (m):.9m Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 2 knots Direct reading Yes Wind direction: 246 Internal Logging No Sea State: 4/5 Swell Height 2.5m Notes: Pressure sensor tared? Yes Time Pressure Calculated Water Speed Direction Operator Comments Depth UTC (dbar) (m BSS) (M/s) (Deg Mag) 11: : : :27 Top box began to give erroneous readings. Batteries changed. 11: : : : : : : Considered to be unreliable readings, not used to compute average 12: : : Maximum current speed (m/sec):.124m/s@13 Average current speed (m/sec):.56m/s Notes: Conversion dbar to Water Depth in meters: Page: 1 of 2 Form F-3 v-4

75 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Surveyor Signed C Voisey Page: 2 of 2 Form F-3 v-4

76 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Target and Test Identification Instrumentation BACTEC id : 11-GOLD Current Meter: Valeport 16 Nord Stream id: R-8CG-E4 Serial Number: 2416 Date of measurement: 1 Control Display Unit: 16 CDU Profile No.: 28 Serial Number: Cable Reel: Position (East & North): Survey Vessel Sampling Regime 9993E & 66298N Sampling Period: 15 seconds Heading: 256 Averaging Period: 4 Activity from Thrusters: <22% - only 1 bow thruster working Water Depth (m): 66.1m Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 7 knots Direct reading Yes Wind direction: 256 Internal Logging No Sea State: 2 Swell Height <.3m Notes: Good visibility Pressure sensor tared? Yes Time Pressure Calculated Water Speed Direction Operator Comments Depth UTC (dbar) (m BSS) (M/s) (Deg Mag) 5: : : : : : : : Duplicate readings average speed.71m/s Maximum current speed (m/sec):.27m/s@14 Average current speed (m/sec):.66m/s Notes: Conversion dbar to Water Depth in meters: Duplicate BSS Surveyor Signed C Voisey Page: 1 of 1 Form F-3 v-4

77 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Noordhoek Singapore Target and Test Identification Instrumentation BACTEC id : 137-Hafnium Current Meter: Valeport 16 Nord Stream id: R Serial Number: Date of measurement: 12/5/1 Control Display Unit: 16 CDU Profile No.: 8 Serial Number: 271 Cable Reel: 1615 Position (East & North): Survey Vessel Sampling Period: Sampling Regime 15 seconds Heading: 69 Averaging Period: 4 Activity from Thrusters: Minimum Water Depth (m): 77 Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 11 knots Direct reading Yes Wind direction: NE Internal Logging No Sea State: 1 Swell Height <.25m Notes: Pressure sensor tared? Yes Time Pressure Calculated Water Speed Direction Operator Comments Depth UTC (dbar) (m BSS) (M/s) (Deg Mag) 13: : : : : : : : Maximum current speed (m/sec):.12 Average current speed (m/sec):.46 Notes: Conversion dbar to Water Depth in meters: Surveyor Page: 1 of 1 Form F-3 v-4

78 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Target and Test Identification BACTEC id : 12-HELIUM Nord Stream id: R-8CG-E-3 Current Meter Model and S/N: Control Display Unit and S/N: Instrumentation Valeport CDU Date of measurement: 1 Cable Reel S/N: Profile No.: 29 Survey Vessel Sampling Regime Position (East & North): 964E, N Sampling Period: 15 seconds Heading: 79 Averaging Period: 4 Activity from Thrusters: <42% DP Current Speed & Dirn.: 1.25 Knots 2 Water Depth (m):.1m Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 25 Knots Direct reading Yes Wind direction: 51 Internal Logging No Sea State: 4 Swell Height 1.5m Pressure sensor tared? Yes Time Pressure Calculated Water Depth Current Speed Current Direction UTC (dbar) (m BSS) (m/s) (Deg Mag) 3: Operator Comments 3: : : : Unreliable reading, not used to compute average current speed 3: : : Maximum current speed 253 Average current speed (m/sec):.74m/s Notes: Conversion dbar to Water Depth in meters: Surveyor Signed C Voisey & C Copland Page: 1 of 1 Form F-3 v-5

79 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Target and Test Identification BACTEC id : 12-HELIUM Nord Stream id: R-8CG-E-3 Current Meter Model and S/N: Control Display Unit and S/N: Instrumentation Valeport CDU Date of measurement: 1 Cable Reel S/N: Profile No.: 3 Survey Vessel Sampling Regime Position (East & North): 984E, N Sampling Period: 15 seconds Heading: NW 33 Averaging Period: 4 Activity from Thrusters: <25% DP Current Speed & Dirn.:.76 Knots 16 Water Depth (m):.1m Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 4 Knots Direct reading Yes Wind direction: West Internal Logging No Sea State: 2/3 Swell Height <.5m Pressure sensor tared? Yes Time Pressure Calculated Water Depth Current Speed Current Direction UTC (dbar) (m BSS) (m/s) (Deg Mag) 2: : : Operator Comments Considered unreliable reading, not used to compute average current speed 2: : : : : Considered unreliable reading, not used to compute average current speed 2: Maximum current speed 59 Average current speed (m/sec):.79m/s Notes: Conversion dbar to Water Depth in meters: Surveyor Signed C Voisey & C Copland Page: 1 of 1 Form F-3 v-5

80 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Target and Test Identification BACTEC id : 13-HYDROGEN Nord Stream id: R-W8A-1312 Current Meter Model and S/N: Control Display Unit and S/N: Instrumentation Valeport CDU Date of measurement: 1251 Cable Reel S/N: Profile No.: 33 Survey Vessel Sampling Regime Position (East & North): 876E, N Sampling Period: 15 seconds Heading: 19 Averaging Period: 4 Activity from Thrusters: <3% DP Current Speed & Dirn.: 1.2Kt Water Depth (m): 63.6 Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 9knots Direct reading Yes Wind direction: 18 Internal Logging No Sea State: 2 Swell Height <.3m Pressure sensor tared? Yes Time Pressure Calculated Water Depth Current Speed Current Direction UTC (dbar) (m BSS) (m/s) (Deg Mag) 4: Operator Comments 4: : Reading deemed unreliable, not used to compute average 4: : : Reading deemed unreliable, not used to compute average 5: : : : : Maximum current speed 82 Average current speed (m/sec):.89m/s Notes: Conversion dbar to Water Depth in meters: Surveyor Signed Page: 1 of 1 Form F-3 v-5

81 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Target and Test Identification BACTEC id : 128-INDIUM Nord Stream id: R Current Meter Model and S/N: Control Display Unit and S/N: Instrumentation Valeport CDU Date of measurement: 1151 Cable Reel S/N: Profile No.: 32 Survey Vessel Sampling Regime Position (East & North): 83E, N Sampling Period: 15 seconds Heading: ENE Averaging Period: 4 Activity from Thrusters: <25% DP Current Speed & Dirn.: 1.1Kt 36 Water Depth (m): 64.1 Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 12Knots Direct reading Yes Wind direction: 151 SE Internal Logging No Sea State: Slight 3 Swell Height <.5m Pressure sensor tared? Yes Time Pressure Calculated Water Depth Current Speed Current Direction UTC (dbar) (m BSS) (m/s) (Deg Mag) 4: Operator Comments 4: : : : : : Maximum current speed 87 Average current speed (m/sec):.88m/s Notes: Conversion dbar to Water Depth in meters: Surveyor Signed C Voisey & C Copland Page: 1 of 1 Form F-3 v-5

82 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Target and Test Identification BACTEC id : 14-IRON 15-KRYPTON & 16-LITHIUM Nord Stream id: R-W8A-1313, R-8-9 & R-W8A-15 Current Meter Model and S/N: Control Display Unit and S/N: Instrumentation Valeport CDU Date of measurement: 11 Cable Reel S/N: Profile No.: 34 Survey Vessel Sampling Regime Position (East & North): 82E, N Sampling Period: 15 seconds Heading: 24 Averaging Period: 4 Activity from Thrusters: < 3% DP Current Speed & Dirn.: 1.25 knots, 22 Water Depth (m): 63.8 Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 19 knots Direct reading Yes Wind direction: 64 Internal Logging No Sea State: 3 Swell Height <1m Pressure sensor tared? Yes Time Pressure Calculated Water Depth Current Speed Current Direction UTC (dbar) (m BSS) (m/s) (Deg Mag) 4: Operator Comments 4: : : : Duplicate readings; average current 33.7m BSS.77m/s 4: : : Maximum current speed Average current speed (m/sec):.131m/s Notes: Conversion dbar to Water Depth in meters: Surveyor Signed C Copland & C Voisey Page: 1 of 1 Form F-3 v-5

83 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Target and Test Identification BACTEC id : 14-IRON 15-KRYPTON & 16-LITHIUM Nord Stream id: R-W8A-1313, R-8-9 & R-W8A-15 Current Meter Model and S/N: Control Display Unit and S/N: Instrumentation Valeport CDU Date of measurement: 11 Cable Reel S/N: 4229 Profile No.: Survey Vessel Sampling Regime Position (East & North): 8E, N Sampling Period: 15 seconds Heading: 6 Averaging Period: 4 Activity from Thrusters: < 33% DP Current Speed & Dirn.: 1 knot, 23 Water Depth (m): 64.4 Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 18 knots Direct reading Yes Wind direction: SE 112 Internal Logging No Sea State: 3 Swell Height <.8m Pressure sensor tared? Yes Time Pressure Calculated Water Depth Current Speed Current Direction UTC (dbar) (m BSS) (m/s) (Deg Mag) 4: Operator Comments 4: : : : : : Maximum current speed 71 Average current speed (m/sec):.97m/s Notes: Conversion dbar to Water Depth in meters: Surveyor Signed C Copland & C Voisey Page: 1 of 1 Form F-3 v-5

84 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Target and Test Identification BACTEC id : 15-KRYPTON Nord Stream id: R-8-9 Current Meter Model and S/N: Control Display Unit and S/N: Instrumentation Valeport CDU Date of measurement: 11 Cable Reel S/N: 1615 Profile No.: 37 Survey Vessel Sampling Regime Position (East & North): 883E, 662N Sampling Period: 15 seconds Heading: 9 Averaging Period: 4 Activity from Thrusters: < 42% DP Current Speed & Dirn.:.9 knot, 158 Water Depth (m): 63.7 Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 18 knots Direct reading Yes Wind direction: 56 Internal Logging No Sea State: 2 Swell Height <.8m Pressure sensor tared? Yes Time Pressure Calculated Water Depth Current Speed Current Direction UTC (dbar) (m BSS) (m/s) (Deg Mag) 4: : Operator Comments Higher than usual current speed recorded; most probably elevated by the activity of the ship s thrusters, which were working hard ~4% to maintain the ship on location. 4: : : : : Maximum current speed Average current speed (m/sec):.73m/s Notes: Conversion dbar to Water Depth in meters: Surveyor Signed C Copland & C Voisey Page: 1 of 1 Form F-3 v-5

85 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Target and Test Identification BACTEC id : 16-LITHIUM Nord Stream id: R-W8A-15 Current Meter Model and S/N: Control Display Unit and S/N: Instrumentation Valeport CDU Date of measurement: 11 Cable Reel S/N: 1615 Profile No.: 36 Survey Vessel Sampling Regime Position (East & North): 871E, N Sampling Period: 15 seconds Heading: 27 Averaging Period: 4 Activity from Thrusters: < % DP Current Speed & Dirn.: 1.2 knot, 81 Water Depth (m): 63.8 Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 15 knots Direct reading Yes Wind direction: 58 Internal Logging No Sea State: 3 Swell Height <1.m Pressure sensor tared? Yes Time Pressure Calculated Water Depth Current Speed Current Direction UTC (dbar) (m BSS) (m/s) (Deg Mag) Operator Comments 4: : : : : : : : : Not used to compute average speed Not used to compute average speed Considered to be most reliable near-bed reading, used to compute average current speed. Maximum current speed 111 Average current speed (m/sec):.112m/s Notes: Conversion dbar to Water Depth in meters: Surveyor Signed C Copland & C Voisey Page: 1 of 1 Form F-3 v-5

86 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Target and Test Identification BACTEC id : 17-MAGNESIUM & 128-INDIUM Nord Stream id: R-8CG-E-2 & R Current Meter Model and S/N: Control Display Unit and S/N: Instrumentation Valeport CDU Date of measurement: 151 Cable Reel S/N: Profile No.: 31 Survey Vessel Sampling Regime Position (East & North): 8239E/ N Sampling Period: 15 seconds Heading: 23 Averaging Period: 4 Activity from Thrusters: <25% DP Current Speed & Dirn.:. knots and Water Depth (m): 64.4m Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 1 knots Direct reading Yes Wind direction: 189 Internal Logging No Sea State: 2-3 Swell Height <.5m Pressure sensor tared? Yes Time Pressure Calculated Water Depth Current Speed Current Direction UTC (dbar) (m BSS) (m/s) (Deg Mag) 6: : : Operator Comments Duplicate readings 6: : : Duplicate readings 6: : : Maximum current speed 66 Average current speed (m/sec):.46m/s Notes: Conversion dbar to Water Depth in meters: Where duplicate readings are taken, the second measurements are always used to calculate average i.e. the first set of measurements are ignored Surveyor Signed C Voisey and C Copland Page: 1 of 1 Form F-3 v-5

87 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Target and Test Identification BACTEC id : 18-NEON Nord Stream id: R-8CG-E-1 Current Meter Model and S/N: Control Display Unit and S/N: Instrumentation Valeport CDU Date of measurement: 11 Cable Reel S/N: 1615 Profile No.: 38 Survey Vessel Sampling Regime Position (East & North): 815E, N Sampling Period: 15 seconds Heading: Averaging Period: 4 Activity from Thrusters: <2% DP Current Speed & Dirn.: 1.5 knots, 2 Water Depth (m): 64.m Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 18 knots Direct reading Yes Wind direction: 58 Internal Logging No Sea State: 2 Swell Height <.5m Pressure sensor tared? Yes Time Pressure Calculated Water Depth Current Speed Current Direction UTC (dbar) (m BSS) (m/s) (Deg Mag) 6: Operator Comments 6: : : : : : : Maximum current speed 299 Average current speed (m/sec):.82m/s Notes: Conversion dbar to Water Depth in meters: Surveyor Signed C Voisey & C Copland Page: 1 of 1 Form F-3 v-5

88 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Target and Test Identification BACTEC id : Nord Stream id: 19-NICKEL R-8-2 Current Meter Model and S/N: Control Display Unit and S/N: Instrumentation Valeport CDU Date of measurement: 11 Cable Reel S/N: 1615 Profile No.: 39 Survey Vessel Sampling Regime Position (East & North): 36E, N Sampling Period: 15 seconds Heading: 23 Averaging Period: 4 Activity from Thrusters: <38% DP Current Speed & Dirn.: Water Depth (m): 7.5m Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 18 knots 21 knots Direct reading Yes Wind direction: Internal Logging No Sea State: 3 3 Swell Height <1.m <1.m Pressure sensor tared? Tes Time Pressure Calculated Water Depth Current Speed Current Direction UTC (dbar) (m BSS) (m/s) (Deg Mag) 1: Operator Comments 1: : : : : : : Maximum current speed 3 Average current speed (m/sec):.3m/s Notes: Conversion dbar to Water Depth in meters: Surveyor Signed C Voisey & C Copland Page: 1 of 1 Form F-3 v-5

89 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Target and Test Identification BACTEC id : Nord Stream id: 19-NICKEL R-8-2 Current Meter Model and S/N: Control Display Unit and S/N: Instrumentation Valeport CDU Date of measurement: 251 Cable Reel S/N: 1615 Profile No.: 4 Survey Vessel Sampling Regime Position (East & North): 3887E N Sampling Period: 15 seconds Heading: 12 Averaging Period: 4 Activity from Thrusters: <4% DP Current Speed & Dirn.: 1.2knots 172 Water Depth (m): ~7m Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 14 knots 13 knots Direct reading Yes Wind direction: 6 34 Internal Logging No Sea State: 2 2 Swell Height <.6m <.6m Pressure sensor tared? Yes Time Pressure Calculated Water Depth Current Speed Current Direction UTC (dbar) (m BSS) (m/s) (Deg Mag) 3: Operator Comments 3: : : : : Duplicate readings: 3: not used to compute average speed 3: : : Maximum current speed 4 Average current speed (m/sec):.41m/s Notes: Conversion dbar to Water Depth in meters: Surveyor Signed C Voisey & C Copland Page: 1 of 1 Form F-3 v-5

90 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Noordhoek Singapore Target and Test Identification Instrumentation BACTEC id : 2 - Nitrogen Current Meter: Valeport 16 Nord Stream id: R Serial Number: Date of measurement: 5/5/1 Control Display Unit: 16 CDU Profile No.: 5 Serial Number: 271 Cable Reel: 1615 Position (East & North): Survey Vessel Sampling Period: Sampling Regime 15 seconds Heading: 143 Averaging Period: 4 Activity from Thrusters: Minimum Water Depth (m): 71 Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 3 knots Direct reading Yes Wind direction: NW Internal Logging No Sea State: 1 Swell Height <.25 m Notes: Pressure sensor tared? Yes Time Pressure Calculated Water Speed Direction Operator Comments Depth UTC (dbar) (m BSS) (M/s) (Deg Mag) 5: : : : : : : : Maximum current speed (m/sec):.92 Average current speed (m/sec):.51 Notes: Conversion dbar to Water Depth in meters: Surveyor Signed Barbara Hume Page: 1 of 1 Form F-3 v-4

91 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya 19-N Target and Test Identification BACTEC id : Nord Stream id: 138-POLONIUM R Current Meter Model and S/N: Control Display Unit and S/N: Instrumentation Valeport CDU Date of measurement: 2151 Cable Reel S/N: 1615 Profile No.: 41 Survey Vessel Sampling Regime Position (East & North): 728E/66287N Sampling Period: 15 seconds Heading: 262 Averaging Period: 4 Activity from Thrusters: <25% DP Current Speed & Dirn.:.9 knots & 69 Water Depth (m): 66.1m Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 3 knots Direct reading Yes Wind direction: 15 Internal Logging No Sea State: Swell Height <.2m Pressure sensor tared? Yes Time Pressure Calculated Water Depth Current Speed Current Direction UTC (dbar) (m BSS) (m/s) (Deg Mag) 6: Operator Comments 6: : : : : Duplicate reading not used to calculate average current speed 6: : : Duplicate reading not used to calculate average current speed Maximum current speed 128 Average current speed (m/sec):.53m/s Notes: Conversion dbar to Water Depth in meters: Surveyor Signed C Voisey and C Copland Page: 1 of 1 Form F-3 v-6

92 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Target and Test Identification BACTEC id : Nord Stream id: 125-RHODIUM R Current Meter Model and S/N: Control Display Unit and S/N: Instrumentation Valeport CDU Date of measurement: 21 Cable Reel S/N: 1615 Profile No.: 42 Survey Vessel Sampling Regime Position (East & North): E & N Sampling Period: 15 seconds Heading: E Averaging Period: 4 Activity from Thrusters: <3% DP Current Speed & Dirn.:.7 knots and 2 Water Depth (m):.6 Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 1 knots Direct reading Yes Wind direction: 238 Internal Logging No Sea State: 2 Swell Height 1m Pressure sensor tared? Yes Time Pressure Calculated Water Depth Current Speed Current Direction UTC (dbar) (m BSS) (m/s) (Deg Mag) 11: Operator Comments 11: : : : : Duplicate reading; not used to calculate average 11: : : Maximum current speed 9 Average current speed (m/sec):.58m/s Notes: Conversion dbar to Water Depth in meters: Surveyor Signed C Voisey and C Copland Page: 1 of 1 Form F-3 v-6

93 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Target and Test Identification BACTEC id : Nord Stream id: 125-RHODIUM R Current Meter Model and S/N: Control Display Unit and S/N: Instrumentation Valeport CDU Date of measurement: 21 Cable Reel S/N: 1615 Profile No.: 44 Survey Vessel Sampling Regime Position (East & North): E & N Sampling Period: 15 seconds Heading: 2 Averaging Period: 4 Activity from Thrusters: <3% DP Current Speed & Dirn.:.8 knots and 1 Water Depth (m): 7.4 Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 11 knots Direct reading Yes Wind direction: W Internal Logging No Sea State: 2 Swell Height <1m Pressure sensor tared? Yes Time Pressure Calculated Water Depth Current Speed Current Direction UTC (dbar) (m BSS) (m/s) (Deg Mag) 3: Operator Comments 3: : : : : : : Maximum current speed 277 Average current speed (m/sec):.m/s Notes: Conversion dbar to Water Depth in meters: Surveyor Signed C Voisey and C Copland Page: 1 of 1 Form F-3 v-6

94 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Noordhoek Singapore Target and Test Identification Instrumentation BACTEC id : 14-Samarium Current Meter: Valeport 16 Nord Stream id: R Serial Number: Date of measurement: 14/5/1 Control Display Unit: 16 CDU Profile No.: 9 Serial Number: 271 Cable Reel: 1615 Position (East & North): Survey Vessel Sampling Period: Sampling Regime 15 seconds Heading: 119 Averaging Period: 4 Activity from Thrusters: Minimum Water Depth (m): Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 13 knots Direct reading Yes Wind direction: E Internal Logging No Sea State: 2 Swell Height <.5m Notes: Pressure sensor tared? Yes Time Pressure Calculated Water Speed Direction Operator Comments Depth UTC (dbar) (m BSS) (M/s) (Deg Mag) 4: : : : : : : Maximum current speed (m/sec):.262 Average current speed (m/sec):.127 Notes: Conversion dbar to Water Depth in meters: Surveyor Page: 1 of 1 Form F-3 v-4

95 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Target and Test Identification BACTEC id : 141-TERBIUM Nord Stream id: R-8-1-FAB-TERBIUM Current Meter Model and S/N: Control Display Unit and S/N: Instrumentation Valeport CDU Date of measurement: 21 Cable Reel S/N: 1615 Profile No.: Survey Vessel Sampling Regime Position (East & North): E/ N Sampling Period: 15 seconds Heading: 258 Averaging Period: 4 Activity from Thrusters: ~15% DP Current Speed & Dirn.:.2 knots & 2 Water Depth (m): 76.2 Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 16 knots Direct reading Yes Wind direction: 239 Internal Logging No Sea State: 3 Swell Height >1m Pressure sensor tared? Yes Time Pressure Calculated Water Depth Current Speed Current Direction UTC (dbar) (m BSS) (m/s) (Deg Mag) 12: Operator Comments 12: : : : : : : Maximum current speed 325 Average current speed (m/sec):.64m/s Notes: Conversion dbar to Water Depth in meters: Surveyor Signed C Voisey and C Copland Page: 1 of 1 Form F-3 v-6

96 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Noordhoek Singapore Target and Test Identification Instrumentation BACTEC id : 129-Thallium Current Meter: Valeport 16 Nord Stream id: R-8-27 Serial Number: Date of measurement: 2/5/21 Control Display Unit: 16 CDU Profile No.: 4 Serial Number: 271 Cable Reel: 1615 Position (East & North): Survey Vessel Sampling Period: Sampling Regime 15 seconds Heading: 247 Averaging Period: 4 Activity from Thrusters: Minimum Water Depth (m): 67 Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 18 Knots Direct reading Yes Wind direction: WSW Internal Logging No Sea State: 3 Swell Height <1.m Notes: Pressure sensor tared? Yes Time Pressure Calculated Water Speed Direction Operator Comments Depth UTC (dbar) (m BSS) (M/s) (Deg Mag) 9: : : : : : : : Maximum current speed (m/sec):.179 Average current speed (m/sec):.68 Notes: Conversion dbar to Water Depth in meters: Surveyor Signed Barbara Hume Page: 1 of 1 Form F-3 v-4

97 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Target and Test Identification BACTEC id : Nord Stream id: 139-THORIUM R-8-27 Current Meter Model and S/N: Control Display Unit and S/N: Instrumentation Valeport CDU Date of measurement: 21 Cable Reel S/N: 1615 Profile No.: 43 Survey Vessel Sampling Regime Position (East & North): 12E & N Sampling Period: 15 seconds Heading: 233 Averaging Period: 4 Activity from Thrusters: <25% DP Current Speed & Dirn.:.9 knots and 82 Water Depth (m): 66.3 Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 14 knots Direct reading Yes Wind direction: 241 Internal Logging No Sea State: 3 Swell Height <1.5m Pressure sensor tared? Yes Time Pressure Calculated Water Depth Current Speed Current Direction UTC (dbar) (m BSS) (m/s) (Deg Mag) 4: : : : Operator Comments Duplicate reading; not used to calculate average current speed Duplicate reading; not used to calculate average current speed 4: : : : : : Maximum current speed 163 Average current speed (m/sec):.153m/s Notes: Conversion dbar to Water Depth in meters: Surveyor Signed C Voisey Page: 1 of 1 Form F-3 v-6

98 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Target and Test Identification Instrumentation BACTEC id : 1-TUNGSTEN Current Meter: Valeport 16 Nord Stream id: R-W8A-1317-A Serial Number: 2416/18878 Date of measurement: 1 Control Display Unit: 16 CDU Profile No.: n/a Serial Number: 26191/273 Cable Reel: 16149/4229 Position (East & North): Activity from Thrusters: Survey Vessel Sampling Period: Sampling Regime 15 seconds Heading: Averaging Period: 4 Water Depth (m): Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 9 knots Direct reading Wind direction: 224 Internal Logging Sea State: 2 Swell Height <.5m Notes: Pressure sensor tared? Time Pressure Calculated Water Speed Direction Operator Comments Depth UTC (dbar) (m BSS) (M/s) (Deg Mag) Tried all combinations of top box/cable reel/fish/batteries/deck lead and cleaned plugs and sockets. Made and remade all connections. Finally establiched with reel , top box and fish Given that current monitoring had already taken GOLD earlier in the day, decision made to abandon monitoring Maximum current speed (m/sec): Average current speed (m/sec): Notes: Conversion dbar to Water Depth in meters: Surveyor Signed C Voisey Page: 1 of 1 Form F-3 v-4

99 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Noordhoek Singapore Target and Test Identification Instrumentation BACTEC id : 29-Xenon Current Meter: Valeport 16 Nord Stream id: R Serial Number: Date of measurement: 11/5/1 Control Display Unit: 16 CDU Profile No.: 7 Serial Number: 271 Cable Reel: 1615 Position (East & North): Survey Vessel Sampling Period: Sampling Regime 15 seconds Heading: 147 Averaging Period: 4 Activity from Thrusters: Minimum Water Depth (m): 76 Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 7 knots Direct reading Yes Wind direction: SSE Internal Logging No Sea State: 1 Swell Height <.25m Notes: Pressure sensor tared? Yes Time Pressure Calculated Water Speed Direction Operator Comments Depth UTC (dbar) (m BSS) (M/s) (Deg Mag) 6: : : : : : : : : Maximum current speed (m/sec):.128 Average current speed (m/sec):.64 Notes: Conversion dbar to Water Depth in meters: Surveyor Page: 1 of 1 Form F-3 v-4

100 NS Final Munitions Clearance Monitoring Report FIN EEZ Rev A: 19 Sep 21 Liite 4.4 Virtausten tarkkailutulokset kesäkuussa 21 Kuvaus Tässä liitteessä esitetään kaikki virtausten tarkkailutulokset, jotka liittyvät ammusten raivaukseen kesäkuussa 21, ja ne on raportoitu Uudenmaan ja Lounais-Suomen ELY-keskuksille kohdassa /91/ mainitulla tiedoksiannolla 16 (katso pääraportin taulukko 1.2) määräysten 4 (ammuslupa) ja 19 (vesilupa) mukaisesti.

101 Liite 4.4 Virtausten seuranta, kesäkuun raivaukset Liite 4.4 Virtausten seuranta, kesäkuun raivaukset Raivatut ammukset Kesäkuussa 21 raivatut ammukset on lueteltu taulukossa A4.4.1 raivaamispäiväjärjestyksessä. Mainitut päivämäärät ovat päiviä, jolloin raivausyrityksiä tehtiin, ja viimeinen päivämäärä on se, jolloin raivaus onnistui. Ammusten F38D ja F38E raivaus vaati kaksi yritystä. Tiedot raivattujen ammusten sijainnista on esitetty liitteessä 1. Taulukko A4.4.1 Yhteenveto seitsemästä kesäkuussa 21 raivatusta ammuksesta. NSP tunnus ROVtunnus BACTECtunnus KP (C16) Panos kg TNT Raivauspäivä Alus F38D R-8-3-FAB Astatine EF F38H R-8-7-FAB Protactinium EF F38F R-8-5-FAB Mendelevium EF ~ F38E R-8-4-FAB Nobelium 46 EF F38G R-8-6-FAB Plutonium EF F38J R-8-9-FAB Tritium EF F38K R-8-1-FAB Deuterium EF Huomautus: EF tarkoittaa tukialus Edda Freyaa ja NHS tukialus Noordhoek Singaporea. Virtausten nopeusprofiilit Virtausprofiilit Kun mittaustulokset esitetään veden syvyyden suhteen laadittuina virtausnopeusprofiileina, nähdään, onko muissa kuin pintakerroksissa ollut merkittäviä virtauksia. Kunkin profiilin alin piste esittää veden syvyyttä mittauspisteessä virtausnopeudella nolla. Witteveen+Bos Sivu 1 / 9

102 Liite 4.4 Virtausten seuranta, kesäkuun raivaukset Relation of Depth and Current Velocity 1 2 Water Depth (m) F38D Astatine (1st hit) 6 F38D Astatine (2nd hit) 7 F38G Plutonium 8 F38F Mendelevium Kuva A4.4.1 Current Velocity (m/s) Mitatut virtausnopeudet veden syvyyden funktiona ennen ammusten F38D, F38G ja F38F raivausta. Relation of Depth and Current Velocity 1 2 Water Depth (m) F38E Nobelium (1st hit) F38E Nobelium (2nd hit) F38H Protactinium F38J Tritium 8 F38K Deuterium Kuva A4.4.2 Current Velocity (m/s) Mitatut virtausnopeudet veden syvyyden funktiona ennen ammusten F38E, F38H, F38J ja F38K raivausta. Havainnot Tärkeimmät virtausprofiileista tehdyt havainnot ovat seuraavat: Yleensä virtausnopeudet ylemmissä kerroksissa ovat hieman suurempia kuin alemmissa kerroksissa; Pohjan lähellä (alle 5 metriä merenpohjan yläpuolella) virtausnopeudet ovat yleensä hyvin pieniä, alle,1 m/s, ja aina alle kriteerin,3 m/s; Suurin virtausnopeus mitattiin välivedessä 8 kesäkuuta; Virtausnopeuden vaihtelut vesipatsaan eri osissa ovat merkittäviä. Witteveen+Bos Sivu 2 / 9

103 Liite 4.4 Virtausten seuranta, kesäkuun raivaukset Johtopäätökset Yhteenvetona esitämme johtopäätöksen, että virtausnopeudet olivat pieniä ja että ammusten raivaus tehtiin asiaa koskevien lupaehtojen mukaisesti. Mitatut virtausnopeudet ovat YVA:ssa mainittujen ennustettujen nopeuksien rajoissa eivätkä anna aihetta muuttaa YVA:ssa esitettyjä arvioita tai sen jälkeen tehtyjä ammuskohtaisia arvioita. Witteveen+Bos Sivu 3 / 9

104 Liite 4.4 Virtausten seuranta, kesäkuun raivaukset Virtausruusut ja 3D-diagrammit Tämä osa Tämä osa sisältää niiden ennen räjäytyksiä tehtyjen virtausmittausten tulokset. Mittauksilla varmistettiin, ettei meressä ollut voimakkaita Viroon päin suuntautuvia virtauksia. Tulokset on esitetty aikajärjestyksessä (ei ammusten F-numeron mukaisessa järjestyksessä). Mittausmenetelmä on selostettu liitteen 4 alussa. Tulokset on esitetty virtausruusuina ja 3D-diagrammeina Ammuksen F38D Astatine raivaus (ensimmäinen yritys) Kuva A Location and data Measuringdepth (m below water surface) Limit Threshold Havaitut virtausolot ennen ammuksen F38D ensimmäistä raivausyritystä. Average of relevant Percentage relevan Witteveen+Bos Sivu 4 / 9

105 Liite 4.4 Virtausten seuranta, kesäkuun raivaukset Ammuksen F38D Astatine raivaus (toinen yritys) Kuva A Location and data Havaitut virtausolot ennen ammuksen F38D toista, onnistunutta raivausyritystä. Measuringdepth (m below water surface) Limit Threshold Average of relevan Percentage relevan Ammuksen F38H Protactinium raivaus Kuva A Location and data Havaitut virtausolot ennen ammuksen F38H raivausta. Measuringdepth (m below water surface) Limit Threshold Average of releva Percentage releva Witteveen+Bos Sivu 5 / 9

106 Liite 4.4 Virtausten seuranta, kesäkuun raivaukset Ammuksen F38F - Mendelevium raivaus Kuva A Location and data Havaitut virtausolot ennen ammuksen F38F raivausta. Measuringdepth (m below water surface) Limit Threshold Average of relevan Percentage releva Ammuksen F38E - Nobelium raivaus (ensimmäinen yritys) Kuva A Location and data Measuringdepth (m below water surface) Havaitut virtausolot ennen ammuksen F38E ensimmäistä raivausyritystä. Limit Threshold Average of releva Percentage releva Witteveen+Bos Sivu 6 / 9

107 Liite 4.4 Virtausten seuranta, kesäkuun raivaukset Ammuksen F38E - Nobelium raivaus (toinen yritys) Kuva A Location and data Measuringdepth (m below water surface) Limit Threshold Average of relevan Percentage releva Havaitut virtausolot ennen ammuksen F38E toista, lopullista raivausyritystä Ammuksen F38G - Plutonium raivaus Kuva A Location and data Havaitut virtausolot ennen ammuksen F38G raivausta. Measuringdepth (m below water surface) Limit Threshold Average of relevant Percentage relevan Witteveen+Bos Sivu 7 / 9

108 Liite 4.4 Virtausten seuranta, kesäkuun raivaukset Ammuksen F38J - Tritium raivaus. Location and data Kuva A Havaitut virtausolot ennen ammuksen F38J raivausta. Measuring depth (m below water surface) Limit Threshold Average of releva Percentage releva Ammuksen F38K - Deuterium raivaus Kuva A Location and data Havaitut virtausolot ennen ammuksen F38K raivausta. Measuringdepth (m below water surface) Limit Threshold Average of relevant Percentage relevant Witteveen+Bos Sivu 8 / 9

109 Liite 4.4 Virtausten seuranta, kesäkuun raivaukset Tallennetut virtaustiedot Tämä osa Tässä osassa on kaikki tukialus M/V Edda Freyalta ennen räjäytyksiä mitatut virtausten seurantatiedot. Tiedot on esitetty BABTEC-tunnusten mukaisessa aakkosjärjestyksessä. Tietojen tarkastelun helpottamiseksi seuraavassa taulukossa on esitetty myös BABTEC-tunnuksia vastavat NSP- ja ROV-tunnukset. Taulukko A4.4.2 Yhteenveto raivatuista ammuksista BABTEC-tunnuksen mukaisessa järjestyksessä. NSP Panos BACTECtunnus (C16) kg TNT päivä KP Raivaus- tunnus ROV-tunnus Alus F38D R-8-3-FAB Astatine ~ EF F38K R-8-1-FAB Deuterium EF F38F R-8-5-FAB Mendelevium ~ EF F38E R-8-4-FAB Nobelium ~ EF F38G R-8-6-FAB Plutonium EF F38H R-8-7-FAB Protactinium ~ EF F38J R-8-9-FAB Tritium ~ EF Huomautus: Kaikki kesäkuussa tapahtuneet raivaukset suoritti M/V Edda Freya; DSV Noordhoek Singapore demobilisoitiin ennen kesäkuuta. Witteveen+Bos Sivu 9 / 9

110 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Target and Test Identification BACTEC id : Nord Stream id: 143 Astantine R-8-3-FAB-F38D Current Meter Model and S/N: Control Display Unit and S/N: Instrumentation Valeport CDU Date of measurement: 3/6/1 Cable Reel S/N: 1615 Profile No.: 49 Survey Vessel Sampling Regime Position (East & North): E N Sampling Period: 15 seconds Heading: 258 Averaging Period: 4 Activity from Thrusters: Minimum DP Current Speed & Dirn.: - Water Depth (m): Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 16 knots Direct reading Yes Wind direction: SSW Internal Logging No Sea State: 2 Swell Height <.25m Pressure sensor tared? Yes Time Pressure Calculated Water Depth Current Speed Current Direction UTC (dbar) (m BSS) (m/s) (Deg Mag) 14: Operator Comments 14: : : : : : : : Maximum current speed (m/sec):.44 Average current speed (m/sec):.16 Notes: Conversion dbar to Water Depth in meters: Surveyor Page: 1 of 1 Form F-3 v-5

111 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Target and Test Identification BACTEC id : Nord Stream id: 143 Astantine R-8-3-FAB-F38D Current Meter Model and S/N: Control Display Unit and S/N: Instrumentation Valeport CDU Date of measurement: 4/6/1 Cable Reel S/N: 1615 Profile No.: 5 Survey Vessel Sampling Regime Position (East & North): E N Sampling Period: 15 seconds Heading: 314 Averaging Period: 4 Activity from Thrusters: Minimum DP Current Speed & Dirn.: 1.3 knots & 128 Water Depth (m): 79 Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 17 knots Direct reading Yes Wind direction: NW Internal Logging No Sea State: 3 Swell Height <.5m Pressure sensor tared? Yes Time Pressure Calculated Water Depth Current Speed Current Direction UTC (dbar) (m BSS) (m/s) (Deg Mag) 3: Operator Comments 3: : : : : : : : Maximum current speed (m/sec):.88 Average current speed (m/sec):.33 Notes: Conversion dbar to Water Depth in meters: Surveyor Page: 1 of 1 Form F-3 v-5

112 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Target and Test Identification BACTEC id : Nord Stream id: 15-Deuterium R-8-1-FAB-F38K Current Meter Model and S/N: Control Display Unit and S/N: Instrumentation Valeport CDU Date of measurement: 11/6/1 Cable Reel S/N: 1615 Profile No.: 57 Survey Vessel Sampling Regime Position (East & North): Sampling Period: 15 seconds Heading: 267 Averaging Period: 4 Activity from Thrusters: Minimum DP Current Speed & Dirn.: 1.3 knots & 112 Water Depth (m): 69 Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 25 knots Direct reading Yes Wind direction: E Internal Logging No Sea State: 5/6 Swell Height 1 m Pressure sensor tared? Yes Time Pressure Calculated Water Depth Current Speed Current Direction UTC (dbar) (m BSS) (m/s) (Deg Mag) 12: Operator Comments 12: : : : : : Maximum current speed (m/sec):.159 Average current speed (m/sec):.59 Notes: Conversion dbar to Water Depth in meters: Surveyor Page: 1 of 1 Form F-3 v-5

113 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Target and Test Identification BACTEC id : Nord Stream id: 1-Mendelevium R-8-5-FAB-F38F Current Meter Model and S/N: Control Display Unit and S/N: Instrumentation Valeport CDU Date of measurement: 7/6/1 Cable Reel S/N: 1615 Profile No.: 52 Survey Vessel Sampling Regime Position (East & North): Sampling Period: 15 seconds Heading: 248 Averaging Period: 4 Activity from Thrusters: Minimum DP Current Speed & Dirn.:.6 knots & 86 Water Depth (m): 81 Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 7 knots Direct reading Yes Wind direction: WNW Internal Logging No Sea State: 2 Swell Height <.25 Pressure sensor tared? Yes Time Pressure Calculated Water Depth Current Speed Current Direction UTC (dbar) (m BSS) (m/s) (Deg Mag) 4: Operator Comments 4: : : : : : : : Maximum current speed (m/sec):.164 Average current speed (m/sec):.63 Notes: Conversion dbar to Water Depth in meters: Surveyor Page: 1 of 1 Form F-3 v-5

114 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Target and Test Identification BACTEC id : Nord Stream id: 144-Nobelium R-8-4-FAB-F38E Current Meter Model and S/N: Control Display Unit and S/N: Instrumentation Valeport CDU Date of measurement: 6/6/1 Cable Reel S/N: 1615 Profile No.: 51 Survey Vessel Sampling Regime Position (East & North): Sampling Period: 15 seconds Heading: 2 Averaging Period: 4 Activity from Thrusters: Minimum DP Current Speed & Dirn.:.9 knots & 1 Water Depth (m): 82 Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 5 knots Direct reading Yes Wind direction: W Internal Logging No Sea State: 2 Swell Height <.5 m Pressure sensor tared? Yes Time Pressure Calculated Water Depth Current Speed Current Direction UTC (dbar) (m BSS) (m/s) (Deg Mag) 2: Operator Comments 2: : : : : : : : Maximum current speed (m/sec):.116 Average current speed (m/sec):.8 Notes: Conversion dbar to Water Depth in meters: Surveyor Page: 1 of 1 Form F-3 v-5

115 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Target and Test Identification BACTEC id : Nord Stream id: 144- NOBELIUM R-8-4-FAB-F38E Current Meter Model and S/N: Control Display Unit and S/N: Instrumentation Valeport CDU Date of measurement: 8/6/21 Cable Reel S/N: 1615 Profile No.: 54 Survey Vessel Sampling Regime Position (East & North): Sampling Period: 15 seconds Heading: 94 Averaging Period: 4 Activity from Thrusters: Min DP Current Speed & Dirn.:.9 knots 28 Water Depth (m): 8 Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 24 knots Direct reading Yes Wind direction: NE Internal Logging No Sea State: 4/5 Swell Height 1m Pressure sensor tared? Yes Time Pressure Calculated Water Depth Current Speed Current Direction UTC (dbar) (m BSS) (m/s) (Deg Mag) 4: Operator Comments 4: : : : : : : : Maximum current speed (m/sec):.258 Average current speed (m/sec):.19 Notes: Conversion dbar to Water Depth in meters: Surveyor Page: 1 of 1 Form F-3 v-5

116 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Target and Test Identification BACTEC id : Nord Stream id: 146-Plutonium R-8-6-FAB-F38G Current Meter Model and S/N: Control Display Unit and S/N: Instrumentation Valeport CDU Date of measurement: 1/6/1 Cable Reel S/N: 1615 Profile No.: Survey Vessel Sampling Regime Position (East & North): Sampling Period: 15 seconds Heading: 258 Averaging Period: 4 Activity from Thrusters: Minimum DP Current Speed & Dirn.:.8 knots & 78 Water Depth (m): 72 Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 5 knots Direct reading Yes Wind direction: ENE Internal Logging No Sea State: Swell Height Pressure sensor tared? Yes Time Pressure Calculated Water Depth Current Speed Current Direction UTC (dbar) (m BSS) (m/s) (Deg Mag) 6: Operator Comments 7: : : : : : : Maximum current speed (m/sec):.17 Average current speed (m/sec):.6 Notes: Conversion dbar to Water Depth in meters: Surveyor Page: 1 of 1 Form F-3 v-5

117 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Target and Test Identification BACTEC id : Nord Stream id: 147-Protactinium R-8-7-FAB-F38H Current Meter Model and S/N: Control Display Unit and S/N: Instrumentation Valeport CDU Date of measurement: 7/6/1 Cable Reel S/N: 1615 Profile No.: 53 Survey Vessel Sampling Regime Position (East & North): Sampling Period: 15 seconds Heading: 227 Averaging Period: 4 Activity from Thrusters: Minimum DP Current Speed & Dirn.: 1. knot & 57 Water Depth (m): 78 Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 8 knots Direct reading Yes Wind direction: NE Internal Logging No Sea State: 1 Swell Height <.25m Pressure sensor tared? Yes Time Pressure Calculated Water Depth Current Speed Current Direction UTC (dbar) (m BSS) (m/s) (Deg Mag) 14: : : : : : : : : Operator Comments Maximum current speed (m/sec):.126 Average current speed (m/sec):.56 Notes: Conversion dbar to Water Depth in meters: Surveyor Page: 1 of 1 Form F-3 v-5

118 CURRENT MONITORING RECORD Mine Disposal Operations in the Baltic Sea M/V Edda Freya Target and Test Identification BACTEC id : Nord Stream id: 149-TRITIUM R-8-9-FAB-F38J Current Meter Model and S/N: Control Display Unit and S/N: Instrumentation Valeport CDU Date of measurement: 11/6/1 Cable Reel S/N: 1615 Profile No.: 56 Survey Vessel Sampling Regime Position (East & North): Sampling Period: 15 seconds Heading: 237 Averaging Period: 4 Activity from Thrusters: Minimum DP Current Speed & Dirn.:.6 knots & 34 Water Depth (m): m Meteorological Observations (start, and end if changed) Logging Mode Wind speed: 13 knots Direct reading Yes Wind direction: SE Internal Logging No Sea State: 3 Swell Height <.25m Pressure sensor tared? Yes Time Pressure Calculated Water Depth Current Speed Current Direction UTC (dbar) (m BSS) (m/s) (Deg Mag) 6: Operator Comments 6: : : : : : : : Maximum current speed (m/sec):.141 Average current speed (m/sec):.43 Notes: Conversion dbar to Water Depth in meters: Surveyor Page: 1 of 1 Form F-3 v-5

119 NS Final Munitions Clearance Monitoring Report FIN EEZ Rev A: 19 Sep 21 Liite 5 Poikkeamaraportit Tämä liite Tässä liitteessä esitetään poikkeamaraportit, jotka liittyvät raivauksen aikana suojavyöhykkeelle tulleeseen pikaveneeseen (Liite 5.1) ja kahden tynnyrin vaurioitumiseen (Liitteet 5.2 ja 5.3). Liite 5.1 Poikkeama liittyen lehdistöalukseen 18. marraskuuta 29 Kuvaus Tämä liite käsittää poikkeamaraportin raivauksen aikana suojavyöhykkeelle tulleesta pikaveneestä ensimmäisen ammuksen (F4) raivauksen valmistelun aikana Suomen talousvyöhykkeellä.

120 ~ Nord Stream.HSE Incident Report TYPEOF INCIDENT (Tick as appropriate) o Actual Injury o Actual Damageto Property / Environment o Near Miss with potential for Injury o Near Miss with potential for Damageto Property / Environment ORIGINATOR of this Reoort: Tonv.Jones. Tell Fax I tiooes(q)bactec.com.. Position; J:'rQl~c;.t~~tr1)!,!.M'!!:I~9~L Company: BACTEC International Ltd _~~!.1!t!~I!~ ~ll!<!r~_n_c~_ ~~~<! ~_t~~<!.f!.l_~<!i!i_~ip_eli_n~ CONTRACT TITLE AND NUMBER (if appllcablej; ~~!J!J Date, time and place of incident Incident No. (HSEQ to complete): 18/11/9 1 GMT, Baltic Sea Description of Incident Whilst on board the M.V. John Lethbridge carrying out operations to dispose of BACTEC target 5 a small outboard motor launch was seen approaching the vessel. Warning notes were imediately sounded on the ships horn, but the launch continued on towards the vessel. As it drew nearer a press pennant was clearly visible at the stern of the launch and the lone occupant could be seen taking pictures of the John Lethbridge. The launch continued around the vessel taking pictures and departed at 13 GMT. Injury (actual or potential severity) Lost Time Restricted Minor Incident Time Incident Damage Property IEnvironmental (a) (b) (c) Location of Damage Name and address of owner What repairs or replacements are required? (d) The estimated cost ( )? (e) Have repairs already been made? Name, address and age of injured person(s) Nil Nil Nameoffurther person(s) involved Have you received any written or verbal statement (Attach any written communication Sheets.) Who reported the incident and when? Nil Nil Master M.V. John Lethbridbe Names and addressee of witnesses & name of The bridge watch. Project Manager BACTEC, Project Admin Managtheir employers. er and the Nord Stream Client Rep Have Police or site security been informed? No Any further reports, witness statements, logs, diaries, photographs, etc. which may help to corroborate the injury and/or damage should also be forwarded with this Form. Number of pages attached. Nil "71] I declare the foregoing particulars are true and correct to the best of my knowledge. / (! ~ Name: A J Jones Date: 18/11/9 Signature: /("...j..j... SUBMIT this form within 24 hours to NORD STREAM AG in Zug (HSEQ Managemenf FAX , chris.preston@nord-stream.com / G-GE-HSE-FOR--82L2-A (7August 27) Nord Stream AG, Grafenauweg 2, 634 Zug, SWitzerland, Tel , Fax

121 NS Final Munitions Clearance Monitoring Report FIN EEZ Rev A: 19 Sep 21 Liite 5.2 Vahinkoraportti tynnyristä R Kuvaus Tämä liite käsittää Noordhoekin onnettomuus-/vahinkoraportin sattuneesta vahingosta tynnyrille R Vahinkoraportti on toimitettu viranomaisille tiedoksiannolla 5 (katso pääraportin taulukko 1.2) vesiluvan määräyksen 16 mukaisesti.

122 163-MUN-IRF-153 Nord Stream Pipeline Project Nord Stream Identification: Location: Description: R E N Barrel As Found Survey: As Left Survey: (Aborted due to poor visibility) As Left Survey: 99_Baltic Disposal Operations 1 BACTEC International Ltd

123 163-MUN-IRF-153 Nord Stream Pipeline Project Observations: Barrels 1. Barrel has remained in original position as per the As Found Survey on completion of disposal of target. 2. On final inspection of the barrel it became evident that the overall integrity of the barrel had been compromised. The original as left survey had to be abandoned due to poor visibility. One explanation may be that during the survey in poor visibility the tether came into contact with the barrel causing the initial damage. Another is that this could have been caused by thruster down wash caused by the larger work class ROV. It is also likely that this has allowed the further damage to occur as the fragile nature of the structure of the barrel is evident. 3. It is also worth noting that the sediment within the barrel would indicate that the barrel was in some way compromised before this incident and as such unlikely to have contained any other liquid than sea water. If any content release has taken place it is likely to have occurred prior to the disposal of the target due to the weak infrastructure of the barrel material around the seam wealds. 4. The damage that has occurred to this barrel is not consistent with the effects of the nearby disposal action particularly as the recorded blast wave was relatively low in value. 99_Baltic Disposal Operations 2 BACTEC International Ltd

124 NS Final Munitions Clearance Monitoring Report FIN EEZ Rev A: 19 Sep 21 Liite 5.3 Vahinkoraportti tynnyristä R Kuvaus Tämä liite käsittää Noordhoekin onnettomuus/vahinkoraportin sattuneesta vahingosta tynnyrille R Vahinkoraportti on toimitettu viranomaisille tiedoksiannolla 4 (katso pääraportin taulukko 1.2) ammusluvan määräyksen 1 mukaisesti.

125 NOORDHOEK OFFSHORE B.V. - NOORDHOEK DIVING COMPANY B.V. ACCIDENT / INCIDENT REPORT Document : 5.4.3C Date : Revision : Owner : QHSE GENERAL INFORMATION: Report no. : 21-1 Initiator : A. v Position : Noordhoek Project superintendent Heeringen Date : Time : Client : Nord Stream Project : Location : Baltic Sea Distribution : T. Salonen Department : Inshore V. Wilkins Offshore J. v Unen. Survey S. Bonnell Vessel M. Blackmore Workshop M. Hafner ROV Type : Personal injury Material damage Environmental damage Complete attachment I Complete attachment II Complete attachment III DESCRIPTION OF WORK PERFORMED AT TIME OF ACCIDENT / INCIDENT An as found survey was carried out at the barrel R (environmental risk class ) prior disposal of the Zinc (R-9-27) target. DESCRIPTION OF ACCIDENT / INCIDENT During the general visual inspection the ROV measured the object with his manipulator. As a result of this measuring the manipulator was in contact with the topside of the barrel. The barrel was damaged during this action. Refer for details to attachment 2. Lost operational time: None ATTACHMENTS Attachment I Personal injury Sketch Attachment II Material damage Photo Attachment III Environmental damage Other: INVOLVED PARTIES Noordhoek: Client: Others: Project manager V. Unen Project manager Superintendent Heeringen Client Rep T. Salonen Supervisor C. Hunter V. Wilkins REPORTED TO Riddor: (QHSE manager) Client: Others: Name J. von Unen Name V. Wilkins Name Date Date Date Name R. Franke Name T. Salonen Name Date Date Date REPORT STATUS Report: Actions: Remarks: Booked in Actions formulated Distributed Actions communicated Finally closed Actions closed COMPLETE THIS GENERAL REPORT USING SPECIFIC ATTACHMENTS I, II AND / OR III Page : 1 of 2

126 NOORDHOEK OFFSHORE B.V. - NOORDHOEK DIVING COMPANY B.V. ACCIDENT / INCIDENT REPORT Document : 5.4.3C Date : Revision : Owner : QHSE ROOT CAUSE ANALYSIS: (how / why did this happen, to be filled in by initiator) The quality of the barrel was at such poor statuses that as soon as the manipulator was in contact the barrel the damage occurs. ACTIONS REQUIRED Yes No PREVENTIVE ACTIONS Description Responsible Due date Status CORRECTIVE ACTIONS Description Responsible Due date Status CATEGORY OF ACCIDENT INCIDENT (to be completed by QHSE Manager) Personal injury Material damage Environmental damage FA - Fatality > 1.., Environmental disaster LTI Lost Time Injury < 5., Large environmental impact RWI Restricted Work Injury < 1., Medium environmental impact MT Medical Treatment < 5., Small environmental impact FAI First Aid Incident < 5, Minor environmental impact MI Minor Incident, No environmental impact OI Occupational Illness Contact details: Position Name Office Mobile Fax Vessel manager NHS C. Vermeer +31 () () ()111 6 c.vermeer@noordhoek.net Company Security Officer C. Vermeer +31 () () ()111 6 c.vermeer@noordhoek.net Project manager Offshore C. Jagt +31 () () ()111 6 c.jagt@noordhoek.net Legal C. Noordhoek +31 () () ()111 6 c.noordhoek@noordhoek.net Technical department M. Beerens +31 () () ()111 6 m.beerens@noordhoek.net QHSE Manager W. Vermeulen +31 () () ()111 6 w.vermeulen@noordhoek.net Diving Doctor Prof. Dr. W. Sterk +31 () () () Noordhoek office +31 () () ()111 6 info@noordhoek.net 24 HOUR DUTY PHONE +31 () COMPLETE THIS GENERAL REPORT USING SPECIFIC ATTACHMENTS I, II AND / OR III Page : 2 of 2

127 NOORDHOEK OFFSHORE B.V. - NOORDHOEK DIVING COMPANY B.V. ACCIDENT / INCIDENT REPORT Attachment II Material damage Document : 5.4.3C Date : Revision : Owner : QHSE GENERAL INFORMATION: Report no. : 21-1 Initiator : A. v. Position : Noordhoek Project superintendent Heeringen Date : Time : 11:42 Client : Nord Stream Project : Location : Barrel R DETAILS OF DAMAGE Damaged material Damage, short description Estimate costs ( ) Remarks Barrel R During an as found inspection of the barrel, the ROV manipulator was in contact with object and damaged the barrel. N.A None. OTHER PERSONEL INVOLVED Name Position Telephone no. Relation to incident (e.g. First aid, crew member etc.) C. Hunter ROV pilot N.A. N.A. DESCRIPTION OF MATERIAL DAMAGE Image prior contact with the ROV. Image after contact with the ROV. The damage to the barrel did not have any environmental impact because the barrel was already open and appeared empty. No material or fluid leakage was reported. THIS ATTACHMENT HAS TO BE USED IN COMBINATION WITH THE GENERAL ACCIDENT / INCIDENT REPORTING FORM Page : 1 of 1