SEDNET SEDIMENTS ON THE MOVE Relevance of moving recent …€¦ · SEDNET – SEDIMENTS ON THE MOVE 01 02 03 04 05 Relevance of moving recent and historic upstream contaminants for

SEDNET – SEDIMENTS ON THE MOVE


15 June 2017, Genoa

Relevance of moving recent and historic upstream contaminants

for Hamburgs dredging strategy and the North Sea

Henrich Röper, Maja Karrsch, Rolf Lüschow, Hamburg Port Authority

René Schwartz, Ilka Carls, Ministry of Environment & Energy, Hamburg


01

02

03

04

05

Relevance of moving recent and historic upstream contaminants

for Hamburgs dredging strategy and the North Sea

2

Relevance for the Estuary and the Sea?

Dredging for Navigation

Impact of the PCB incident on dredged

sediments

Influence for dredged material

management - North Sea disposal

Outlook

SEDNET – SEDIMENTS ON THE MOVE 3

Relevance for the Estuary?

01

North Sea

Baltic Sea

Source: Google

Hamburg, Germany

Giant Mountains, Czech Republic

Berlin, Germany

Prague, Czech Republic

?

Schmilka D/CZ Border


Port of Hamburg

• Germany‘s biggest port

• influenced by tide

• 100 km distance to North Sea


Birds / Habitats (Natura 2000)

Wadden Sea


Sediments from upstream and the North Sea

10:1


HCB

p,p‘ DDT

p,p‘ DDD

p,p‘ DDE

PCB-138

PCB-153

TBT

PCDD/F

Hg

Cd

Pb

Zn

PCB-180

Todays contamination

© Schwartz/ELSA


Dredging for Navigation

02


Dredged Material Management Concept

NORTH SEA

DISPOSAL

RELOCATION HAMBURG

BENEFICIAL USE

DISPOSAL

TREATMENT LOW CONTAMINATION North Sea placement 1 - 3 mio m3/a

Relocation within river 4 - 8 mio. m3/a

HIGH OR SPECIFIC CONTAMINATION Land treatment and disposal up to 0,5 - 1 mio m3/a


Land treatment and disposal

▶ Regular river maintenance

total cost: ~ 75 Mio. € per year!

▶ Land treatment:

1/5 of volume, but 3/4 of cost!


Hydrological conditions – Headwater discharge

71

% 62

% 55

%

51

%

94

%

65

%

Nov Dez Jan Feb Mrz Apr Mai Jun Jul Aug Sep Okt

0

100

200

300

400

500

600

700

800

900

1000

1100 [m³/s]

2013/ 2014

2014/ 2015

2015/ 2016

2016/ 2017

MQ₅₀

Abflußjahr:


0

10

20

30

40

50

60

70

80

90

100

Nov Dez Jan Feb Mrz Apr Mai Jun Jul Aug Sep Okt

Trüb

ung

[TE/

F]

2013 /2014

2014 /2015

2015 /2016

2016 /2017

von 1995 Bis 2013

Hydrological conditions – Turbidity


Development of Dredged material amounts (Hamburg only)

Relocation

Hamburg North Sea Landtreatment Total Amount


Impact of the PCB incident on

dredged sediments

03


Possible impact on the sediments in the estuary / Port of Hamburg


SF

3

Norder-

elbe

Süder

-elbe

Ref-1 Außeneste

Ref-3 Köhlfleet

Ref-4 Parkhafen

Ref-5 Vorhafen

Ref-6 Reiherstieg Nord

Ref-7 Hansahafen

Ref-8 Baakenhafen/Strandhafen

Ref-9 Dove Elbe

Ref-10 Sandauhafen

Ref-11 Seehafen 4

Ref-12 Reiherstieg Vorhafen Süd

Ref-13 Rethe Neuhof

Ref-14 Bullenhausen

Ref-15 Rethe Einfahrt

4 5 7

6 8

9

14

12 11

13

15 10

Oortkaten (Ref-20) = 2013: 2,3 // 2016: 3,9

Stover Strand (Ref-22) = 2013: 2,2 // 2016: 4,4

Port of Hamburg (fresh settled fine sediments)

Wedel (S-Fang) = 2013: 2,7 - 2,8 // 2016: 2,8 - 3,2

2013: 2,3

2016: 3,3

2013: 2,5

2016: 3,3

2013: 2,1

2016: 4,0

2013: 2,1

2016: 3,0

2013: 3,1

2016: 2,9 2013: 2,2

2016: 3,5

2013: 2,2

2016: 2,9

2013: 2,4

2016: 3,5

2013: 4,3

2016: 3,0

20

22

2013: 2,4

2016: 3,9

2013: 1,9

2016: 3,0

2013: 2,3

2016: 2,8

2013: 2,3

2016: 2,8

2013: 2,5

2016: 3,9

1

Possible impact on the sediments in the estuary / Port of Hamburg


Influence for dredged material

management – North Sea disposal

04


22

Why North Sea?

Stakeholder involvement

Develop recommendation for the

political-administrative level –

consisting of a well documented

report determining consesus and

dissensus areas.

• Common economic and ecologically

handling of sediments in the Elbe

• Involvement of stakeholders to bring in

all relevant aspects not covered by the

concept (yet)

• “Consultation” of environmental NGOs,

business representatives, Ministries,

communities, fishery and tourism

organizations etc.


Parameter Unit

Arsenic < 20 µm mg/kg TS

Lead < 20 µm mg/kg TS

Cadmium < 20 µm mg/kg TS

Chrome < 20 µm mg/kg TS

Copper < 20 µm mg/kg TS

Nickel < 20 µm mg/kg TS

Mercury < 20 µm mg/kg TS

Zinc < 20 µm mg/kg TS

TBT (Gesamtfraktion) µg/kg TS

KWST < 63 µm mg/kg TS

PAK16 < 63 µm mg/kg TS

PCB7 < 63 µm µg/kg TS

a-HCH < 63 µm µg/kg TS

g-HCH < 63 µm µg/kg TS

p,p'-DDE < 63 µm µg/kg TS

p,p'-DDD < 63 µm µg/kg TS

p,p'-DDT < 63 µm µg/kg TS

PeCB < 63 µm µg/kg TS

HCB < 63 µm µg/kg TS

20

Assessment criteria for North Sea Disposal

Action level 1 Action level 2

40 120

90 270

1,5 4,5

120 360

30 90

70 210

0,7 2,1

300 900

20 300

200 600

1,8 5,5

13 40

0,5 1,5

0,5 1,5

1 3

2 6

1 3

1 3

1,8 5,5

GÜBAKAverage

2005 - 2015

x SD

35 2,5

90 5,1

2,8 0,4

81 13

72 7

43 3

1,8 0,2

613 69

84 46

178,6 69,0

2,5 0,9

20,9 5,2

1,0 0,4

0,4 0,4

4,8 1,7

14,4 4,3

5,2 2,7

1,7 0,6

9,3 3,9

Köhlbrand

SEDNET – SEDIMENTS ON THE MOVE Seite 21

• 350 analyses per campaign, most

intensive programm in European coastal

waters.

• 2x / year - sediments, biotoxicity, fauna,

etc.

• various organisms – common whelk, abra

alba (shell), dab, since 2017: shrimp,

plaice

• Monitoring working group with members

from federal states

Monitoring E3

SEDNET – SEDIMENTS ON THE MOVE Seite 22

• Das Umweltmonitoring ist mit 350 Analysen pro

Kampagne das umfassendste Monitoring

dieser Art in europäischen Küstengewässern.

• Das Monitoring umfasst zweimal pro Jahr

Untersuchungen der Sedimente, der

Bioakkumulation und der Fauna bei „Tonne E3“

und im umgebenden Bereich.

• Arten, die auf Schadstoffanreicherungen im

Organismus untersucht werden:

Wellhornschnecke, Pfeffermuschel, Kliesche.

Neu: Nordseegarnele, Scholle

• Abstimmung in länderübergreifender

Monitoring-AG

Monitoring


Since 2017: Investigation of Makrophytes (Helgoland)

23

• Documentation in picture and video

• Additional activity, consistent with ungoing

monitoring activities


Outlook

05


North Sea

Baltic Sea

Source: Google

Hamburg, Germany

Giant Mountains, Czech Republic

Berlin, Germany

Prague, Czech Republic

?

Schmilka D/CZ Border

Thank You!

Documents

SEDNET SEDIMENTS ON THE MOVE Relevance of moving recent …€¦ · SEDNET – SEDIMENTS ON THE MOVE 01 02 03 04 05 Relevance of moving recent and historic upstream contaminants for