English Andal Amdal 2010 Part 1

8/13/2019 English Andal Amdal 2010 Part 1

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been provided with EIA in year 2001. The EIA was approved by the Central

Communication EIA Commission with an approval Nr. KP.137 A Year 2001on 04 May 2001. Unfortunately, to date the required area for the proposed

development is still inadequate. With reference to State Regulation Nr. 27

Year 1999 about Environmental Impact Assessment (EIA), the approval on

the EIA of Tanjung Perak Port Development is out of date since the

development was not yet realized within 3 (three) years time as of the date ofthe approval. Therefore, in order to execute Tanjung Perak Port Development

plan in Lamong Bay, it requires re-application for EIA approval from the

competent authorities.

The EIA covers studies in to what extent the impacts, both positive and

negative ones, that may arise from a business line and/or activities to the

environment The positive impacts are to be maximized, while the negative

ones are to be minimized I order to prevent decreased environment quality.

The application of this EIA is supposed to support sustainable eco-friendly

development.


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1.3. Jurisprudences

The EIA is prepared based on the prevailing jurisprudences and in consistent

with the plans of Tanjung Perak Port Development in Lamong Bay. The

jurisprudences related with the EIA are, inter alia :

Acts Considerations

Act Nr. 5 Year 1960 about AgrarianPrinciples

Related with hypothetical significantimpact priority about apatialutilization

Indonesian Act Nr. 5 Year 1990 aboutBiological Natural Resources and TheirEcosystems

Adopted as reference that the activityplans are to be consistent with waterresource conservation efforts

Act Nr. 23 Year 1992 about Health Adopted as reference toEnvironmental Impact Assessment in

View of Health Aspect Indonesian Act Nr. 32 Year 2004 about

Local Government

Referring to the authorities ofprovincial/city/regency governmentin relation with activity plans

Indonesian Act Nr. 26 Year 2007 aboutSpatial Arrangement.

Adopted as reference in determiningactivity site

Act Nr. 27 Year 2007 about Coastal Area andSmall Island Management

Adopted as reference in managingand observing coastal areas and

ll i l d


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State Regulations Considerations

State Regulation Nr. 85 Year 1999 about :

Amendment to State Regulation Nr. 18 Year1999 about Pollution and/or Sea DestructionControl

Adopted as reference in managing

hazardous and poisonous waste

State Regulation Nr. 81 Year 2000 aboutNavigation Affairs

Adopted as reference in operationalactivities

State Regulation Nr. 69 Year 2001 about Port Adopted as reference in operationalutilization of hazardous andpoisonous materials

State Regulation Nr. 74 Year 2001 aboutHahardous and Poisonous Materials

Adopted as reference in operationalactivities

State Regulation Nr. 82 Year 2001 AboutWater Quality Management and Water

Pollution Control

Adopted as reference in waterenvironment management and

observation

State Regulation Nr. 51 Year 2002 aboutShipping

Adopted as reference in operationactivities

State Regulation Nr. 16 Year 2004 about

Area Utilization

Adopted as reference in determining

proper area utilization anddevelopment

State Regulation Nr. 38 Year 2007 aboutDivisions of Authorities among NationalGovernment, Provincial Gvernment andCity/Regency Government

Determining authorities inenvironmental management andobservation

State Regulation Nr. 60 Year 2007 about FishResource Conservation as Guides to FishResource Preservation

Adopted as reference that activityplanning is to be consistent with fishresource conservation efforts


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Regulations of State Minister of Environment Considerations

Regulation of State Minister of Environment

Nr. 11 Year 2006 about Business Plansand/or Activities to be Provided withEnvironmental Impact Assessmenmt.

Adopted as reference in preparing

Environmental Impact Assessment

Regulation of State Minister of EnvironmentNr. 05 Year 2009 about Waste Managementin Port

Adopted as reference in hazardousand poisonous waste handling

Regulations of Minister of Communication Considerations

Regulation of Minister of Communication Nr.KM 4 Year 2005 about Prevention of WatePollution from Vessels

Adopted as reference for pollutionprevention and environmentalobservation

Regulation of Minister of Communication Nr.7 Year 2005 about Shipping Navigation Aids

Adopted as reference in determiningseawater transportation transportation

Regulation of Minister of Communication NrKm 14 Year 2006 about Surface TrafficEngineering and Management

Adopted as reference in improvingtransportation network performance

Decisions of Minister of Communication Considerations

Decision of Minister of Communication Nr.KM 215 Year 1987 about Waste StorageProvision and Vessel

Adopted as reference for pollutionprevention and environmentalobservation

Decision of Minister of Communication Nr.KM 286 Year 2002 about Mandatory Pilotingin Water Areas

Adopted as reference in determiningseawater transportation transportation

D i i f Mi i t f C i ti N Ad t d f i i


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Decision of Minister of Environemnt and Head

of Environmental Impact Management Agency

Considerations

Decision of Minister of Environemnt andHead of Environmental Impact ManagementAgency Keputusan Nr. Kep. 056Year 1994 about Guides to Significant ImpactMeasurement.

Adopted as basis for determiningsignificant impacts

Decision of Minister of Environemnt andHead of Environmental Impact ManagementAgency Keputusan Nr. KEP.

299/11/Tahun1996 about Technical Guides toSocial Social Aspects in PreparingEnvironmental Impact Assessment

Adopted as guides in preparingenvironmental impact assessment interm of social aspects

Decision of Minister of Environemnt andHead of Environmental Impact Management

Agency Keputusan Nr. Kep.124/12/1997about Guides to Review on Community

Health Aspect in Preparing EnvironmentalImpact Assessment.

Adopted as guides in reviewinghealth aspects in environmental

impact assessment

Decision of Minister of Environemnt andHead of Environmental Impact ManagementAgency Keputusan Nr. 08 Year 2000 aboutCommunity Involvement and InformationOpeness in Environmental ImpactAssessment Proces.

Adopted as referrence in communityinvolvement process in preparingenvironmental impact assessment

East Java Provincial Regulations Considerations


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Decisions of Governor of East Java Province Considerations

Decision of Governor of East Java Province

Nr. 660.3/25781/025/1986 aboutEnvironmental Impact Handling.

Adopted as reference in handling

pollution impact

Decision of Governor of East Java ProvinceNr. 154/1994 about Business Line and/orActivities to be Provided with EnvironmentalImpact Assessment

Regulation as basis for preparingenvironmental impact assessment

Decision of Governor of East Java ProvinceNr. 08 Year 2004 about Operational Guides

to Community Involvement in InformationOpenness in Environmental Impact

Assessment Process in East Java Province

Adopted as reference in communityinvolvement in information

openness in environmental impactassessment process in East Java

Province

Decision of Governor of East Java ProvinceNr. 61 Year 2006 about Space Utilization inRegional Scale Dense Area in East JavaProvince.

Adopted as reference in spatialdevelopment

Regulation of Governor of East Java ProvinceNr. 10 Year 2009 about Air Ambient Quality

Standard and Immovable Pollution Sources inEast Java Province.

Adopted as reference in evaluatingimpact on ambient air quality.


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G2


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Person in Charge : Rahmat Yuli Artono

Address : PT. Konindo Timur Utama

Jl. Perum YKP Rungkut Lor II B-1 Surabaya (60293)

Table 2.1. Environmental Impact Statement Writing Team

Tanjung Perak Port Development in Lamong Bay

Nr

WRITING

TEAM NAME QUALIFICATION

1

2

3

4

5

6

7

Leader

Team member

Team member

Team member

Team member

Team member

T b

Ir. Anggrahini, M.Sc

Prof.Ir.Pinardi Koestalam, M.Sc

Ir. Waras Wibowo

Ir. Triyogi Suramto

Ir. Hanafi Pratomo

Ika Ristiyani Madyaningrum, S.Si

D H

Certificate of EIA B

Transportation Expert

Hydrooceanography and

Sedimentation Expert

Hydrology Expert

Water Physical-Chemical

Quality Expert

Aquatic Biology Expert

S i E i d C l


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2.2. Descriptions of Business Plans and/or Activities

General

The on-going processs and current preparation of detailed engineering design

(DED) for Tanjung Perak Port Development in Lamong Bay, the construction

plans are getting apparent. The revised activity plans will be decsribed in the

following sub-chapter that will be adopted for predicting impacts detailed in

the following chapter.

Descriptions of Activity Plans

The Tanjung Perak Port Development in Lamong Bay is exclusively for

construction container terminal and comprises constructions of causeway,

connecting bridge, container yard abd container freight station (CFS), office

building, gare truck parking lot, pedestrian, open green space, and pier and

trestle.

It does not require land acquisition and community resettlement especially for

the construction of access roads in Tambak Osowilangun Village. The whole

area required for this construction belongs to PT. Pelabuhan Indonesia III, and


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Tabel 2.1.Construction Activities in Tanjung Perak Port in Lamong Bay

Nr Descriptions Unit Volume1 Causeway and connecting bridge works

a Causeway reclamation

Length m' 500

Width m' 140

Area m2 70,000

Reclamation Volume m3 173,000

b Connecting BridgeLength m' 2,560

Width m' 18

Area m2 32,000

2 Shallow water reclamation works for container yard and

supporting facilities

Reclamation Volume m3 5,844,000

Container yard size, Area, 4 Blocks @ 96.750 m2 m2 387,000

Terminal supporting facilities m2 113,000

3 Pier and trestle works

a Piers, sized 645m x 40m and 635m x 40m m2 51,200

b Trestle, 2 units sized 235m x 12m and 1 unit sized 235m x

9,5m m2 7,872.5

Source: Survey Investigation Design (SID), Construction of Container Terminal II in Lamong

k S b 2008


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REPORT OF ENVIRONMENTAL IMPACT STATEMENT 2-5Environmental Impact AssessmentTanjung Perak Port Development in Lamong Ba y


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ina

lDeve

lopmen

tin

Lamong

Bay

Off

Shore

Side

minalDevelopmentIIinL

amongBay,TanjungPerakPort,Surabaya,2008)

U

H

1'08.1

"LS

1'10.4

"BT

G

-14

.00

G1

CURRENTM

ETER

I

H1

I1

71

1'41.1

"LS

1124

1'38.3

"BT

711'48.9

"LS

11241'32.5

"BT


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GARIS

PANT

AI

B1

712'39.0

"LS

11239'47.7

"

BT

Causeway500 m x 140 m

Connecting Bridge

2560 m x 18m

U


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Table 2.2. Project Activity Plan - Tanjung Perak Port Development in

Lamong Bay

Nr Descriptions 2007 2008 2009 2010 2011 2012 2013Project Preparation

1 Preparation of Survey, Investigation and

Design (SID) and Environmental Impact

Assessment

2 Project arragement and Licenses

perijinan

Construction

1 Cuaseway and Connecting Bridge

Construction Works

2 Shallow Water Reclamation and

Container Yard Construction

3 Pier Structure and Trestle Construction

4 CFS, office Building, Gate Construction

and Workshop etcs

Source: Survey Investigation Design (SID) Container Terminal Development II in Lamong Bay,

Tanjung Perak Port, Surabaya, 2008

Project Implementation : Studied Pre-Construction Phase, Construction

Phase and Operation Phase

In the project implementation, generally there are activities predicted to brig

impacts during the planning, construction and operation of the project. The


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by the activities. The socialization covers the whole project activity

plans for the container terminal development in Lamong Bay.

The socialization activities are arranged as follows :

1. Approaching the fisherman public figures or fisherman

societies;

2. Collecting the public complaints and expectations in relation

with the project activities and communicate them to the

management and relevant government authorities;

3. Holding regular meetings with the community, PT. Pelabuhan

Indonesia III and relevant local government

4. Socializing the project activities plans to the community and

fishermen concerning the activities possibly affecting their

activities (such as : reclamation, pier strcture construction, etc.)

The issues to be discussed in the socialization cover the following

topics :

1. Activity plans on area preparation, reclamation for constructing


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and 20 non-skilled workers. The hiring will be prioritized for the

local people in accordance with the required qualifications. They

will be hired during construction phse only on contract basis.

Material and Equipment Mobilization and Demobilization

Material and equipment mobilization and demobilization for

preparing the construction of connecting bridge, pier structure and

trestle are highly potential to bring negative impacts to the traffic

on the roads accessed by the material and equipment transporting

trucks. The addition of heavy trucks operated for material and

equipment mobilization in the container terminal development in

Lamong Bay will be about 10 15 units of trucks per day. For

transporting the material and equipment to the project site, the

operated trucks will access the Toll Road and Jalan Tambak

Osowilangon until reaching the project site.

The works will adopt cast in situ construction method. The

reinforcing metal bards will be directly brought and set on site,


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Reclamation for Preparing Causeway Construction

The reclaimed area for constructing the causeway will be 500 m length

and 140 m width (total 70,000 m2) protruding to the sea. The

construction of the causeway will be quarry with volume + 173,000m3.

The cut of cross section of the causeway is presented in Figure2.4.

PVDPVD PVD PVD PVD PVD PVD

7.0 m HWL = +3,00 mLWS

+7,00 mLWS

0.00 mLWS

1:2

-25,00 mLWS- 25.00 mLWS

TIMBUNAN & SURCHARGE

(selected material)

0.00 mLWS

+2.00 mLWS

PHD

25m

Fill and surchage

(selected material)


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Connecting Bridge Construction Works

The connecting bridge will be 2,560 m length and 12,5 m width. The

construction adopts steel pile foundation. The distance between poers of

the bridge piles. The interval in between the piles is 40 m. It is designed

to anticipate scouring due to seawater turbulence.

The typical of cut of cross section of the connecting bridge is presented

in Figure 2.5 and Figure 2.6. The connecting bridge is constructed for

the interests of the fisherman with + 5m clearance.

18000

8000 8000

2100

1200

3600 3

00


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Figure 2.6. Cut of Pile Slab Cross SectionSource: Survey Investigation Design (SID) Container Terminal Development II in

Lamong Bay, Tanjung Perak Port, Surabaya, 2008

Shallow Water Reclamation for Container Yard Construction

The shallow water reclamation requires holistic planning as it is closely

related with detailed designs of each part of the structure. In general it

covers riprap construction and shallow water reclamation. The quarry

material is the mud collected from the dredging of shipping routes.

In general, the methods of shallow water reclamation are described as

follows :

18000

4 @ 3500 = 14000 20002000


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Surabaya Container Terminal). The reclamation material is supplied

from the quarry by means of barge provided with suction unit and

pipes to flow the material to the location of the causeway as it is in

shallow water area.

Area Preparation and Compaction

It is a process of compaction of the reclamation in to an area ready

for constructions.

The works comprise :

a) Preparation Works

It covers the gains of licences required for the area to be

reclaimed, equipment mobilization, installation of signs and

border poles of the reclaimed shallow waters.

b) Geotextile Installation (made of synthetic materials for soil

strengthening). In order that the reclamation construction is

stable, it requires geotextile installation in layers. The thickness

of each layer is to conform with the needs.


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e) Shallow Water Reclamation Works

The reclamation is processed by pouring the quarry materials

into the reclaimed area steadily until it reches the expected

elevation. Next, the reclamation is leveled and compacted.

f) Vertical Drain and Horizontal Drain Installations

The vertical drain is for accelerating the draining. It is settled

on the ground by means of piling equipment provided with

special tools.In order to be able to accelerate the drain of water

of of the reclamation area, it requires horizontal dran (sand).

g) Compaction Works

The compaction requires vibrator rollers. The number of

required lanes depends on the permitted compaction

requirements.

Construction of Pier Structure and Trestle

The area of pier to be constructed is 51,200 m2 (645 m x 40 m and

635 m x 40 m) and the size of each of the 2 trestles to be constructed is


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Figure 2.7. Cut of Pier Cross Section

Source: Survey Investigation Design (SID) Container Terminal Development II in



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Pier Structure and Trestle Construction

The piers are constructed on pile foundation. The piles are plantedby means of pontoon on the sea (Figure 2.9.). Next, it is followed

with preparation of poer reinforcement and casting (on the top of

the structure to tie some piles), and preparation of girder

reinforcement and pier floor. Then, they are casted with ready mix

concrete. The casting in situ is predicted to decrease the seawaterquality due to concrete spills.

Tiang Pancang

Darat Laut

Ponton Pancang

On ShoreOff Shore

Pile

Pontoon


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Figure 2.10. Hardening LayersContainer Yard Zona



12 Gates

The gates are constucted with steel frames. The front view of the

gate structure is presented in Figure 2.11.


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The typical side view and cross section of the CFS is presented in

Figure 2.12 and Figure 2.13

Figure 2.12. CFS Left Side View



Tampak Samping KiriSkala 1:250

667667 667667 667667

4000

000

+ 700

+ 1266

- 120

SISI ARAH LAUT SISI ARAH DARATAPRON APRON

300 300300300

+ 517

600600

15

+ 700

+ 1266

15

On Shore SideApron

Left Side View

Scale 1250


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Figure 2.14. Typical Hardened Construction of Park ing Area

Source:Survey Investigation Design (SID) Container Terminal Development II

in Lamong Bay, Tanjung Perak Port, Surabaya, 2008

The construction of terminal facilities is predicted to mobilize heavy

duty equipment and materials by mens of 10-15 units of trucks per day.

The trucks operated have to pass emission tests.

C. Operation Phase

Concrete Block K-500

Bedding Sand

BASE

COURSE

CTB K-125

SUB GRADE

CBR 6 %

10cm

5cm

60cm

SUB BASE

AGREGAT B

CBR 30 %

30cm


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Container Loading and Unloading

The operation of container terminal in Lamong Bay will entailcontainer loading and unloading activities.

In the loading and unloading activities, commonly the containers

are to first transit in the container yard before being transported to

vessels for loading operations or to trucks for unloading operations.

The container terminal capacity is 1,6 million TEUs per year, and

it is estimated that there will be increase of vessel accesses by +

530 vessels per year or + 2 vessels per day. Tanjung Perak Port

Development is supposed to anticipate container loading and

unloading up to year 2030. Next, it will be developed by

constructing a new port in Tanjung Bulu Pandan, Bangkalan,

Madura (Results of Study by JICA 2007, The Greater Surabaya

Metropolitan Port).

Container Terminal Operation


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Ballast Water Supply and Oil Spill

The ballast water is commonly filled after the vessels havecompleted unloading operations to balance the vessels. Such

operations seldom take place in Tanjung Perak Port since, mostly,

vessels having completed unloading operations, they will be

straigtly loaded. Therefore, in general ballast water filling

practically is not required. The oil usually spills during ballast

water draining. The process ballast water draining is to adopt

reception facility (RF). The container terminal in Lamong Bay

share the same RF available in Tanjung Perak Port in Nilam Barat.

Waste Treatment in Tanjung Perak Development in Lamong Bay

The waste treatment in container terminal in Lamong Bay utilizes

the same waste treatment plant already available in Tanjung Perak

Port. The treated wastes cover :

Solid Waste


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Regulation of the Minister of Environment Number 05 Year 2009

about Waste Treatment in Ports (annexed thereto). The RF

activities cover collection and storage of dangerous and hazardous

wastes, and waste treament facilities, such as oil separator, Waste

Water Treatment Plant (WWTP) and residual landfill (such as :

incenerator). The RF operation is not yet optimum as it has not yet

been legally protected by Sea and Coast Security Guard (KPLP) by

means of a regulation obliging each vessel to utilize the RF,

especially for handling used oil or dangerous and hazardous

wastes). The RF Operation Permit is presented in Annex 3.

Port Security Management

The port security in the container terminal in Lamong Bay will be

managed under the same standards as the ones applied in Tanjung

Perak Port. Tanjung Perak Port management has applied the

international standards to manage the port security and facilities

under International Ship and Port Facility Security (ISPS Code)


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2.3. Alternatives Studied in Environmental Impact Statement

In this Environmental Impact Assessment, there is no alternatives of location

as the determination of location for the port development is based on the

results of previous studies, inter alia : Technical and Environmental Review

on Shipping Routes, Seminetation and Phase of Reclamation in Coastal

Area in Madura Strait Year 2000,by Public Service Center (LPM) of ITS in

collaboration with Marine Engineering Study Program of ITB, concluding that

Lamong Bay is one of the feasible alternatives for port development in Madura

Strait, in addition to port development in the estuary of South Mireng River,

Gresik. The results of the review concluded that in view of technical aspects

the area is simply fair, yet in view of environmental aspects it is feasible

todevelop.The degree of importance, initial environmental condition and environmental

evaluation during the study are arranged as follows :

Degree of Importance:

- Referring to Surabaya City Master Plan, the area is suitable for


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2.4. Relationship Between Business and/or Activity Plans and Other Activities

Surrounding the Project Site

Tanjung Perak Port

Tanjung Perak Port is geographically located in 112 43 22 East Longitude

and 7 11 54 South Latitude, excatly in Madura Strait., North Part of

Surabaya City. As the second largest port in Indonesia, after Tanjung Priok

Port in Jakarta , it plays definitely strategic roles and function, i.e. : as a

support to smoothen the sea transportation trafficand driver of economic

growth, specifically in East Java Province, and generally in East Indonesia. In

addition, it also serves as a center for both international and domestic trading

activities and a transhipment port. The roles and function are obviously

dominant and mutually supporting.

Geographically, the position of East Java Province is relatively central to the

territory of Republic of Indonesia, where the second largest port in Indonesia

is located in. The port accommodate both import-export and inter-insular

trading activities. In view of economy, East Java Province plays important


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The transportation system connecting Tanjung Perak Port tp the hinterland

comprises some modes of transportation. It East Java Province and its

surrounding, it is dominated by trucks with arterial roads and toll road. The

existing toll road is Surabaya-Gempol Toll Road (43 km) and Surabaya-Gresik

Toll Road (21 km). Besides, there are railroads accessing the port, i.e.:

Sidotopo railroad passing Perak train station.

655'00"LS

655'00"LS

11250'00" BT11235'00" BT

SLEMPIT

SEMBILANGAN

Ug. SLEMPIT

SEMBILANGAN

JUNGPIRINGBARAT

JUNGPIRINGTIMUR

Ug. PIRING

MARTAJASA

BANGKALAN

S.PUCUNG

BANCARAN

SABANEH

SABIYAN

GEBANG

POCOGAN

BARUK

LANCANG

BINTENG

AROSBAYABARAT

Tg.MODUNG

Tg.BULUPANDAN

Tg.SAWO

KALIMERTANI

KALIUJ

UNG

Tg.WEDORO

KALISOLO

MUARAKALI SOLO

KALI RESPATI

11240'00" BT 11245'00" BT

700'00"LS

700'00"LS


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The progress of traffic accessing Tanjung Perak Port during the last five years

(2003 through 2007) are as follows :

a. Vessel Visit. In average, the annual growth rate decreased in units by 0.08%

and in Gross Tonnage (GT) by 2.51%.

b. Cargo Traffic. In average, the annual growth rate decreased in cargo traffic

in Ton/m3 by 2.24%, however in term of unit it increased by 15.23%.

c. Container Traffic. In average, the annual growth rate increased in box unit

by 7.32% and TEUs by 6.84%.

d. Passenger Traffic.In average, the growth rate of passenger traffic decreased

by 0.85% per tahun.

Table 2.3. Vessel Visit, Cargo Traffic, and Passenger Traffic

Year 2003-2007Growth

NR. DESCRIPTION UNIT 2003 2004 2005 2006 2007 Average

( % )

1. Vessel Visit Unit 15,624 16,547 14,915 15,467 15,459 -0.08

GT 65,183,411 65,058,717 60,590,286 60,005,935 58,785,543 -2.51

2, Cargo Traffic Ton/ m3 12,122,736 11,436,695 10,650,986 10,940,693 11,034,644 -2.24


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impact will be increase of traditional fisherman boat traffic loading the

existing shipping routes in the West Part of Madura Strait.

Waterfront City Plan in Lamong Bay

Based on the information collected from the East Java Province

Environmental Agency, it is planned to establish a Waterfront City close to

Lamong Bay by a private entity. It is supposed to be a water tourist attractioncenter. Theproject will be realized by reclaiming parts of Lamong Bay to

establish 2 (two) artificial islands, each with a total area of 116 Ha and 84 Ha

(See Sitemap in Figure 2.16).

The locations of the reclamation area are in two administrative territory of

Regency Government og Gresik (116 Ha) and City Government of Surabaya

(84 Ha). The project will possibly increase the surface elevation of backwater

in the estuary of Lamong River due to high tide.

Suramadu Bridge


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REPORT OF ENVIRONMENTAL IMPACT STATEMENT 2-29Environmental Impact Assessment Tanjung Perak Port Development in Lamong Ba y


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3.1. General

This sub-chapter contains brief descriptions about the environment in the


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a. Rainfall

The heaviest monthly rainfall during the last 10 years was 605 mm in

January 1999. The heavy rains usually fall in November through January.

Figure 3.1. Monthly Rainfall During 1998-2007

Source : Tanjung Perak Meteorology Station I Surabaya

The graph shows that the heavy rains fall during the wet season from

November through April. The dry season takes place from May through

0

100

200

300

400

500

600

700

CurahHuj

an(mm)

1998

1999

2000

2001

2002

2003

2004

2005

2006

2007January

February

March

April

May

June

July

August

S

eptembe r

October

N

ovember

Rainfall(mm)


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Figure 3.2. Monthly Average Temperature during 1998-2007

Source : Tanjung Perak Meteorology Station I Surabaya

The monthly average highest temperature was in November 2006, i.e.

30.6oC, while the monthly average lowest one was in January 2001,

i.e.: 26.9oC.

c. Wind Speed and Direction

25

26

27

28

29

30

31

Suhu(oC)

1998

1999

2000

2001

2002

2003

2004

2005

2006

2007January

February

March

April

May

June

July

August

September

October

November

December

Tem

erature

C


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Table 3.1. Cont.

2002 2003 2004

MOST WIND MAX. WIND MOST WIND MAX. WIND MOST WIND MAX. WIND

DIR SPD DIR SPD DIR SPD DIR SPD DIR SPD DIR SPD

W 4 W 18 W 4 NW 25 W 5 W 21

W 6 W 30 W 6 NW 37 W 6 NW 20

E 4 NE 20 E 4 NW 30 W 5 W 40

E 5 NE 16 E 4 E 22 E 6 E 16

E 5 NE 18 E 4 SE 22 E 4 W 20

E 6 NE 20 E 5 E 24 E 5 U 20

E 6 NE 19 E 5 E 18 E 5 E 23

E 6 NE 20 E 6 E 20 E 6 E 22

E 6 NE 20 E 7 E 20 E 6 E 22

E 6 NE 20 E 5 E 16 E 6 NE 20

E 5 NE 24 E 4 E 20 E 5 S 20

W 4 U 38 W 7 NW 26 W 5 U 40

Table 3.1. Cont.

2005 2006 2007

MOST WIND MAX WIND MOST WIND MAX WIND MOST WIND MAX WIND


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With reference to the aforementioned data, it shows that the wind direction is

dominantly W-E, with averge maximum speed of 20 knot and average speed 5

knot.

3.2.2. Air Quality and Noise

Air Quality

To identify the ambient air quality in the project site, the contents of gases,

such as Carbon Monoxide (CO), Nitrogen Oxide (Nox), Sulphur Dioxide

(SO2), and solid particles (dust) are measured. The gases are measured interms

of : air temperature, relative humidity. Wind speed, and wind direction. The

primary measurements are undertaken and analyzed by East Java Province

Company Hygiene and Occupational Health Center. The air quality and noise

measurements were conducted on 19 February 2008 in 5 (five) observation

points surrounding the studied area as presented in Figure 3.3. The climatic

conditions during the measurements are presented in Table. 3.2. and the

results of ambient airquality measurement are presented in Table 3.3.


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Table 3.3. Results of Ambient Air Quality Measurement

*Regulation of Governor of East Java Province Nr. 10 Year 2009

** Indonesian State RegulationNr. 41 Year 1999 about Air Polution Control

Source: Air Quality and Noise Survey on 19 February 2008 for Environmental Impact Assessment for Tanjung Perak Port

Development towards Lamong River and Lamong Bay

Nr Locations

PARAMETER

Carbom

Monoxide

(CO) (ppm)

Nitrogen

Oxide

(NOx) (ppm)

Sulphur

Dioksida

(SO2) (ppm)

Amonia

(NH3)

(ppm)

Dust(g /N m3)

1 Container Terminal Gate 1.0 0.0453 0.0016 0.0439 0.0658

2 Demak Junction, Jl. Gresik 4.0 0.0593 0.0044 0.0423 0.6482

3 Romokalisari Crossroad 4.0 0.0561 0.0044 0.0044 0.5791

4 Tambak Osowilangun 3.7 0.0441 0.0026 0.0584 0.0662

5 Margomulyo Junction 2.7 0.0420 0.0022 0.0658 0.6857

Quality Standards * 20 0.05 0.10 2.00 0.26230 g/Nm

**


45/142


Source:

DIGITAL INDONESIAN MAP YEAR 1999I I

1 SKALAU

TA R

A

1430

1400

9200

1330

1300

1230

1200

11

30

1100

9205

1030

1000

0930

0900

0830

9210

0800

0693267

443

919824291 293

383

06

Balongsa

393

06

Balongsa

413

420

0690

0693214

Remarks Air and Noise Sampling in 5 Points

Figure 3.3Air Quality and Noise Survey Locations


46/142

Refering to data presented in Table3.3, the parameter exceeding the quality

standard is NOx, i.e.: in Jl Demak Jl. Gresik Junction and Romokalisari

Crossroad. The dust exceeding the quality standards as set forth in the

Indonesian State Regulation 41 Year 1999 is found in Demak Junction,

Romokalisasi Crossroad and Margomulyo Junction. The concentration of

measured gases and dust is predicted to originate from fuel combustion of

automotive vehicles and traffic of automotive transportation activities. In the

locations of measurement, the mobile activities of human beings and goods by

means of automotive vehicles are relatively dense.

Noise

The noise sampling points and number of samples are the same as the ones for

measuring air quality measurement (See results in Table3.4.).

Table 3.4. Results of Noise Measurement

Nr LocationNoise Intensity

(dB.A)

1 Container Terminal Gate 71 2

Remarks Location of Sediment Sampling Dasar


47/142


U

TA R

A

Source :

DIGITAL INDONESIAN MAP YEAR 1999I I I

1 0 1SKALA

1430

1400

9200

1330

1300

1230

1200

1130

1100

9205

1030

1000

0930

0900

0830

9210

0800

0693267

443

919824291 293

383

06

Balongsa

390

393

400

06

Balongsa

413

420

0690

0693214

Remarks

Location of Seawater Quality Sampling

1

Figure 3.4Locations of Sediments Floating and on Bed and Sewater

Quality Sampling

1

2

3 4 105

6

9

8

7


48/142

Table 3.5. Seawater Quality in Studied Area

Table 3.5. Cont.

PARAMETER UNITDetection

Limit

RESULT

LOCATION - 1

RESULT

LOCATION - 2

RESULT

LOCATION - 3

RESULT

LOCATION - 4

RESULT

LOCATION - 5

Physical :

Clarity **) m 0.1 NA NA NA NA NA

Odour - - Odorless Odorless Odorless Odorless Odorless

Total Suspended Solid mg/l 1 83.0 17.0 20.0 14.0 13.0

Rubbish **) - - ) Nihil ) Nihil ) Nihil ) Nihil ) Nihil

Temperatur **) C 0.1 ) 27.3 ) 27.4 ) 27.3 ) 27.3 ) 27.3

Oil Layer **) - - ) Nihil ) Nihil ) Nihil ) Nihil ) Nihil

Chemical :

pH **) - 0.01 ) 7.75 ) 7.69 ) 7.86 ) 8.23 ) 8.23

Salinity as NaCl 0.1 29.4 28.5 26.4 27.4 27.8

Total Ammoniac (NH3-N) mg/l 0.01 nd nd nd nd nd

Sulfide (H2S) mg/l 0.01 nd nd nd nd nd

Total Hidrocarbon mg/l - NA NA NA NA NATotal Phenolic Compound mg/l 0.001 nd nd nd nd nd

Total PCB (Polychlor Bifenyl) mg/l 0.001 nd nd nd nd nd

Surfactans Anionic as MBAS mg/l 0.03 nd nd nd nd nd

Oil and Grease mg/l 0.2 nd nd nd nd nd

TBT (TributylTin) mg Sn/L - NA NA NA NA NA

Dissolved Metals :

Mercury (Hg) mg/l 0.001 nd nd nd nd nd

Cadmium (Cd) mg/l 0.004 nd nd nd nd nd

Copper (Cu) mg/l 0.004 nd nd nd nd nd

Lead (Pb) mg/l 0.007 nd nd nd nd nd

Zinc (Zn) mg/l 0.01 nd nd nd nd nd

Biology :Total Coliform MPN/100 ml 2 9 240 900 240 nd

PARAMETERRESULT

LOCATION - 6

RESULT

LOCATION - 7

RESULT

LOCATION - 8

RESULT

LOCATION - 9

RESULT

LOCATION - 10

QUALITY

STANDARD *)Test Method

Physical :

Clarity **) NA NA NA NA NA > 3 Visual

Odour Odorless Odorless Odorless Odorless Odorless Odorless 2105-B #)

Total Suspended Solid 25 0 11 0 10 0 17 0 24 0 80 2540-D


49/142

Based on the data presented in Table 3.5., it is found that, when compared to

the standards set forth in Decisison of Minister of Environment Nr. 51/2004,

the seawater quality is described as follows :

The seawater physical quality based on the result of measurement on

parameter of suspended solid, there is 1 location the quality of whicj

exceeds the standard quality, i.e. : waters in Lamong River (Location Nr.

1).

The seawater chemical quality measured in 10 measurement locations I

sin general satisfy the seawater quality standards in port area. Seaa

locations in Figure3.4.

Referring to the aforementioned descriptions, it is conclusive that the

seawater in the studied area and its surrounding satisfy the quality standards

for port area.

The quite number of suspended solid in the studied area , especially the one

in Location 1 or in front of the estuary of Lamong River is due to the

sediment in Lamong River. It contains mud drawn by the river water and


50/142

78

0 0 1 15121021 22 25

1715 20 26 27 32

26 26

ySoftClailySilt

ftClailySilt

HardClailySilt

ediumClailySilt

StiffClailySilt

-2.00

BARATLAUT

BH3

-0.00

520m

SPT

T gRoutes,SedimentationandReclamationinCoastalAreainMad

uraStrait,

SOUTHWEST


51/142

3.3. Hydrology and Hydro-oceanography Components

3.3.1. Hydrology Aspects

Watershed

In the studied area there are rivers draining into Lamong Bay. They are

Lamong River, Krembangan River, Anak River, Greges River, Branjangan

River and Sememi River. They mainly serve as area drainages. The river

waterflows originate from the surrounding areas and household liquid wastes.

These rivers drain into Gunungsari Drainage System as they are connected to

Gunungsari Primary Drainage. Gunungsari Primary Drainage used to be

irrigation network that changed into drainage due to the change of drainage

areas in the farms into dwelling and industrial areas.

The characteristics of the small rivers resemble the ones of Lamong River.

Accordingly, the results of analysis on Lamong River apply to those small

rivers.

The initial descriptions of the rivers and watersheds are as follows :

L Ri


52/142

In the downstream, it is less wide, i.e. : 60 m, with flood plain depth

2,50 m.

The main problems are Lamong River are flood and sedimentation, as it

is the final drainage to some parts of Gresik Regency, Lamongan

Regency and the areas surrounding the river. Floods in Lamong River

watershed always present in wet season every year. Based on the

Detailed Designs and Environmental Impact Assessment concerning

Lamong River in Gresik Regency, 2005, the largest floods or the highest

puddles were in January and March 2004. The puddled areas in Gresik

Regency covered Cerme Sub-district and Duduk Sampeyan Sub-district,

Cermenlerek Village Gorekan Kidul Village with puddle height 1,5

mand puddled 600 Ha farm and settlement area as presented in Figure

3.6.


53/142

Figure 3.6. Puddle Map of Lamong River Flood on 12 March 2004

Source : Study on Detailed Design and Environmental Impact Assessm,ent for Lamong River in Gresik Regency, Year 2005


54/142

mainly damaged, especially in the left side of the spillway top point

and downstream left wing.

3. Cermenlerek River Sub-Watershed

Cermenlerek River is located in Cermenlerek Village and Beton

Village. Its length is 8 km and the watershed area is 56 km. During

the wet season, the water flow rate is pretty high, while during dry

season, it is relatively zero. The right and left embankments of the

river is quite tall, about 3.0 m from the river bed. However, it does

not mean that the Cermenlerek River is always capable of storing the

flow rate of the water. In the downstream, about 250 m from the,

there is a 2 x 1,25 x 3,0 m water gate that, at present, still function to

drain the annual waterfow.

4. Menganti River Sub-Watershed

Menganti River Sub-Watershed is located in Bringkang Village and

Menganti Village, Menganti Sub-district with an area of 39 km and

length of 10.5 km. It is meandering with average width of 20.00 m.


55/142

Figure 3.7. Distribution of Lamong River Watershed

Source : Study on Detailed Design and Environmental Impact Assessm,ent for Lamong River in Gresik Regency, Year 2005

The river analysis based on the results of Study on Detailed Design and

Environmental Impact Assessm,ent for Lamong River in Gresik

Regency, Year 2005, as the it is based on the Lamong River flood

control and devlopment. The results of the analysis on the rain from 6

rain monitoring stations in Lamong River Sub-Watershed, the rain fall

volume in each of the Lamong River Sub-Watershed are presented in

Remarks :

Big River

Small RiverSub-district

Border


56/142

The results of analysis on the planned rainfall volume in various

recurrent periods in each set point are presented in Table 3.7. as

follows.

Table 3.7. Planned Rainfall Volume (m3/det)Lamong River

Sub-Watershed in Various Recurrent Year

Source : Study on Detailed Design and Environmental Impact Assessm,ent for Lamong River

in Gresik Regency, Year 2005

The measurable monthly average river flow rates in Boboh Station

(Location of AWLR in Lamong River) are presented in the seperti

pada Table 3.8. as follows :

Calculation Method

Monitoring Point Q2 Q5 Q10 Q2

Lamong R.-Jablang R. Crossing Downstream 77 175 244 85

Lamong R.-Gondang R. Crossing Downstream 120 215 282 122

Lamong R.-Cermenlerek R. Crossing Downstream 136 237 308 120

Lamong R.-Menganti R. Crossing Downstream 149 261 339 132

Iker - Iker Estuary 125 224 293 115

Lamong R. Rubber Dam I 372 594 747 231

HSS Nakayasu


57/142

The area utilized for fishponds in the Lamong River watershed is

relativelt large. Although, there have been conversions of findponds

into industrial estates, the number of inlets of fishponds up to Jono

Village are still significant

The seawater flows (backwater) drain salty water into the river surface

and make the river water brackish and contain higher salinity

compared to the one from fresh water draining into the Lamong River

watershed. The local people use the salty water to fill their fishponds

to breed fish and shrimps and produce salts.

Lamong River is also used as a traffic facility among the fishermen

residing in Pojok Village, Tenapes Village and Jono Village.

The data of the cross section of the river resulted from the previousstudy, from the estuary through 20 km towards the upstream are

presented below.


58/142

A. Measurement of River Waterflow Speed

The locations of measurement and sampling points in Lamong River are

shown in thi figure below.

Figure 3.9. The locations of measurement and sampling points in Lamong River

The results measurement of river water flow speed in Lamong River are

presented in Table 3.9.

Table 3 9 Results of Measurement of Average Riverwater Flow Speed

0,0 0,5 1,0 1,5 2,0 km


59/142

Table 3.10. Sediment Concentration Based on results of analysis

on floating sediment in Lamong River

Sampling STA Nr 1 Nr 2 Nr 3 Nr 4 Nr 5 Nr 6

Weight of Gross (gram) 578 588 591 580 593 602

Sediment Tare (gram) 24 22 22 21 22 22

Net (gram) 554 566 569 559 571 580

Container Nr.

Weight of Gross (gram) 1.6778 1.668 1.6755 1.6852 1.6631 1.6648

Sediment Tare (gram) 1.4933 1.4757 1.4645 1.4745 1.4834 1.4736

Net (gram) 0.1845 0.1923 0.211 0.2107 0.1797 0.1912Net (gram) 0.1845 01923 0.211 0.2107 0.1797 0.1912

Concentration (mg/lt) 319 327 357 363 303 318

Sampling STA Nr 7 Nr 8 No.9 No.10 No.11 No.12

Weight of Gross (gram) 600 598 588 588 594 580

Sediment Tare (gram) 22 21 22 21 21 22

Net (gram) 578 577 566 567 573 558

Container Nr.

Weight of Gross (gram) 1.6811 1.6654 1.6411 1.6418 1.6321 1.6439

Sediment Tare (gram) 1.4942 1.4995 1.4898 1.4912 1.4819 1.4985

Net (gram) 0.1869 0.1659 0.1513 0.1506 0.1502 0.1454

0.1869 0.1659 0.1513 0.1506 0.1502 0.1454

Concentration (mg/lt) 312 277 257 256 253 251

C Results of Analysis on Bed Sediment


60/142

Figure 3.10. Distribution of Salinity, TDS and Conductivity in Lamong

River from the Estuary through Rubber DamSource : Study on Detailed Design and Environmental Impact Assessm,ent for Lamong River in Gresik

Regency, Year 2005

b Sememi River

Salinity, TDS and Conductivity Graphs

Sam le Numbes

Salinity

,TDS

and


61/142

relatively shallow and its riverbanks are pretty low. In case of heavy

rains, such a condition always leads to water overflows

The worse is that, some residents in the South of Gunungarai Primary

Drainage, has holed the dams in the North to lower the floodwater

surface. Consequently, Jalan Raya Benowo is puddled longer and and

bear traffic congestion.

The channels in Babat Jerawat drainage with its upstream in Gresik

Regency are mostly natural. Only the ones found in real estate area are

embanked. The channels of Sememi River in the south area still natural.

c. Kali Branjangan (Kandangan)

In Surabaya City drainage networks, Branjangan River is called

Kandangan River.The chargacteristics and functions of this river are

similar to the ones of Sememi River. The upstream is located in

Kandangan Village, Benowo Sub-district. The area utilization is

indifferent from the ones of Sememi River, where fishponds spread

wide, although a few settlement areas are found (in the middle of the


62/142

- Citra Raya and Citra Raya Timur secondary channel It is fully

walled and riprapped and its dimension is widened by the real estate

developer.

The foolds from Gunungsari primary drainage cause puddles in

Kandangan River watershed and around the natural river section.

d. Greges or Balong River

In Surabaya City drainage networks, Greges River is called Balong River.

Greges River is also a drainage following into Lamong Bay. Most parts of

the river have been riprapped, yet still under capacity. There is nmuch

sediment flowing in the channel. On the right and lift river banks, there

are already many factory plants constructed and draining most of their

wastes into the river. It worsens the sedimentation problem in the Greges

River. In the upstream there is a slide water gate controlling the water

flow downstream. The secondary channels flowing into Greges River are

Margomulyo Secondary Channel, Darmo Harapan Secondary Channel,

Darmo Indah Secondary Channel Lontar Secondary Channle Gadelsari


63/142

waterflow in the reservoir is controlled by water gates and pumps. The

water flowing into the reservoir is from Greges Channel, Perak Channel

and Simo River. The reservoir is full of rubbish. Flood is present in

Gunungsari Primary Drainage due to the overflows from the upstream

when the flows enter the siphon and in the down stream between

Gunungsari Primary Drainage and Morokrembangan reservoir.

The problems of floods in Lamong River watershed and it tributaries are

typically indifferent from the ones in Surabaya City. Mainly, it is due to :

Heavy torrents.

Area topography and river angle downstream (< 1%).

Ineffective drainage networks and system and inconsistent with the present

spatial utilization concerning with surface erosion and rain precipitation.

There is specific reference for the water surface on streets and dwelling

areas and the ones in drainage channels.

There is no river provided with water gates to cope with back waterto the

river and channels.


64/142

The results of survey on Small Rivers are presented in Table 3.12below.

Table 3.12. Results of Waterflow Surveys in Sememi River, BranjanganRiver, Greges River, Anak River and Krembangan River

Nr X Y Depth an (m) Speed (m/dt)

Upper

Width

(m)

Flow

Rate

(m3/dt)

Remarks

1 682408 9202710 1.35 0.17 19.00 4.36 High Tide at 11.00 Sememi Bridge

2 680554 9199924 0.45 0.13 8.30 0.50 Low Tide at 12.30 Middle Sememi

3 680068 9199114 0.05 0.82 1.14 0.05 Box Culvert Sememi Usptream

4 683714 9201062 1.08 0.21 15.60 3.61 High Tide 10.45 BranjanganBridge

5 682747 9198270 0.42 0.18 7.60 0.56 Low Tide Miidle Branjangan

6 682710 9197954 1.55 0.11 19.50 3.32 Low Tide at 13.47 Branjangan Upstream

7 685230 9200506 0.78 0.38 22.60 6.79 High Tide at 10.00 Greges Bridge

8 685168 9197354 0.35 1.02 3.00 1.07 Box culvert Surut Greges Upstream

9 686137 9200530 1.15 0.20 37.20 8.56 High Tide at 9.45 Anak Tiver Bridge

10 686954 9198860 0.16 0.87 2.50 0.34 Box culvert low tide Anak River upstream

11 688488 9200516 0.82 0.13 19.50 2.12 High tide at 9.15 Krembangan River Bridge

12 689125 9197188 0.52 0.28 6.50 0.93

Low tide at 15.25 Krembangan River

upstream

13 689842 9200256 1.10 0.09 12.70 1.30 High tide at 09.00 Greges River Bridge

14 689635 9198780 0.57 0.18 33.00 3.30 Low Tide at 15.53 Middle Greges River

15 689445 9198002 0 40 0 34 12 80 1 76 Low tide Greges River upstreamHulu


65/142

Lamong Bay and surrounding river estuaries are shallow water areas during

high tide and surface areas during low tide.

During low tide, the wetted channels in the estuary of Lamong River are

apparent. In this shallow water area the angle of the seabed is slightly soping.

Towards the sea, some parts of Lamong Bay are included into the shipping

routes of Tanjung Perak Port. The channels are pretty deep, reaching 20 m

depth. The shift from shallow waters to the shipping routes forms relatively

steep seabed. The geometric shape of Lamong Bay as resulted from the

bathymetry measurement is presented in Figure 3.11.


66/142

b. TideIn the the Study on Technical and Environmental Reviews on Shipping

Routes, Sedimentation and Reclamation in Coastal Area in Madura Strait,

2001, the tide was observed in some points for 29 days. Based on the results

of the observation the constants of the tide were processed by means of Least

Square Method, to identify the dominant tidal components close to the

observation points in in the studied area in Tanjung Widoro, Sembilangan,

Tanjungan, Kesek Timur, Gresik and Kenjeran.

The results of the observation on the tide in those observation points are

presented Figure 3.12.and Figure 3.13.

The resulted calculation of constants of tide are presented in Table 3.13.

Table 3.13. Tidal Components in Six Observation Points

Tidal

Compo

-nents

Obs. Point

T.Widoro

Obs. Point

Sembilangan

Obs. Point

Gresik

Obs. Point

Tajungan

Obs. Point

Kenjeran

Obs. Point

Kesek Timur

A(cm) g (o) A(cm) g (o) A(cm) g (o) A(cm) g (o) A(cm) g (o) A(cm) g (o)

So 120.57 - 89.82 - 193.03 - 73.43 - 76.96 - 67.72 -


67/142

Lokasi: Tanjung Widoro

-150

-100

-50

0

50

100

150

Elevasimukaair(cm)

Lokasi: Gresik

-150

-100

-50

0

50

100

150

Elevasimukaair(cm)

Lokasi: Kenjeran

Obs Point: Tanjung Widoro

Obs Point: Gresik

Obs Point: Kenjeran


68/142

Lokasi: Kesek Timur

150

Lokasi: Tajungan

-150

-100

-50

0

50

100

150

Elevasimuk

aair(cm)

Lokasi: Sembilangan

-150

-100

-50

0

50

100

150

Elevasimukaair(cm)

Obs Point: Sembilangan

Obs Point: Tajungan

Obs Point: Kesek Timur


69/142

Where : A : amplitude

g : phase diference

M2 : main component of the moon (semi diurnal)S2 : main component of the sun (semi diurnal)

N2 : eliptic component of the moon

K2 : component of moon-sun (semi diurnal)

K1 : component of moon-sun (diurnal)

O1 : main component of the moon (diurnal)

P1 : main component of the sun (semi diurnal)

M4 : tidal component of shallow water (quarterdiurnal)

MS4 : tidal component of shallow water (compound tide)

Based on the results of calculation of the main tidal constants, the value of

Formzhal (F) can be identified to determine the tide in the studied area

(Defant, 1958). The value of Formzhal is determined by comparing the total

amplitude of components K1and O1 and the total components of M2and S2, or

in the following equation :


70/142

Table 3.14. Tidal Types Based on Formzhal Value

Nr Observation PointFomzhal

Value

Tidal Types

1 Tanjung Widoro 2,74 Mixed, dominant diurnal

2 Sembilangan 2,25 Mixed, dominant diurnal

3 Gresik 1,62 Mixed, dominant diurnal

4 Tajungan 1,44 Mixed, dominant semi diurnal

5 Kenjeran 1,12 Mixed, dominant semi diurnal

6 Kesek Timur 0,93 Mixed, dominant semi diurnal

Source : Study on Technical and Environmental Reviews on Shipping Routes, Sedimentation and

Reclamation in Coastal Area in Madura Strait, 2001

Based on the calculated Formzhal value from the the tidal main constants, it

shows that the tidal type in Gresik is Mixed Diu rnal Dominant Tide, where

in one day there is high tide once and low tide once. In case of neap tide, in

one day there are 2 high tides and 2 low tide. In Kenjeran the tidal type is

Mixed Semi Diurnal Dominant Tide, where in one day there are high


71/142

Referring to the comparison of the important elevations in those two

observation points, it shows that the tidal elevation in Kenjeran is higher than

the one in Gresik. The studied area is in between the two observation points in

observation points Kenjeran and Gresik. Accordingly, when the mean of HWS

in Gresik and Kenjeran is adopted, the predicted HWS in the studied area is

+283,41 LWS. This elevation is supposed to be adopted as prime

consideration in determining the reclamation elevation.

c. Water Current

In the Study on Technical and Environmental Reviews on Shipping Routes,

Sedimentation and Reclamation in Coastal Area in Madura Strait, 2001, some

measurements on water currents are conducted around the project site. The

results of the measurements are presented in Table 3.16.

Table 3.16. Minimum and Maximum Currents Measured in Each

Observation Point

ObservationNeapTide Spring Tide

Di i Di i

h l f h h h h i i h


72/142

The results of the measurements show that the maximum current in the

shipping routes is 0.62 m/dt. In other occasions, the current speed in the

shipping routes can reach 1.0 m/dt, while in shallow waters, the averagecurrent speed is relatively small i.e. : 0.1 m/dt.

Keterangan :

U

AR 1

AR 2

Remark:

Th lt f th t t b d t d d t i t t


73/142

The results of the current measurement can be adopted as data input to

modelling by means ofsoftware: SMS 8.0. The modelling of the existing

conditions are presented in Figure 3.15and Figure3.16.

Figure 3.15. Current Movement in High Tide (Timestep189)

Planned Shallow Water

Reclamation + 50 Ha

Connecting Bridge (on pile)

Causeway

d S di t


74/142

d. Sediment

The bed sediment gradation as resulted from the analysis on sample taken in

the shipping routes in Lamong Bay is resented in Table3.17.

Table 3.17. Results of Analysis on Bed Sediment in Studied Area

Sediment Properties

Locations of Sampel

S1 S2 S3

Specific Gravity 2.673 2.653 2.674

Finer #200 (%) 19.88 84.15 79.36

Gravel (%) 38.1 2.8 1.1

Sand (%) 42.0 13.1 19.6

Silt (%) 19.9 65.2 56.0

Clay (%) 0.0 18.9 23.3

Source : Study on Technical and Environmental Reviews on Shipping Routes,

Sedimentation and Reclamation in Coastal Area in Madura Strait, 2001

The concentration of floating sediments taken from the shipping routes in


75/142

contoh sedimenLokasi pengambilan

Keterangan:

U

S 1

S 2

Remarks :S1 = In front of Lamong

RiverS2 = Close

toreclamation area

for container yard

t ti

Sediment Sampling

Points

Remarks :

MADURA ISLAND

JAVA

Based on the results of bed sediment measurement the concentration of


76/142

Based on the results of bed sediment measurement, the concentration of

sediment and condition of sediment due to seawater current movements are

modeled (See Figure 3.18and Figure 3.19).

Figure 3.18. Existing Floating Sediment Concentration

Planned Shallow Water

Reclamation + 50 Ha

Connecting Bridge (on pile)

Causeway


77/142

There are of patterns of domination in the sampling points surounding the


78/142

There are of patterns of domination in the sampling points surounding the

estuary and the sea. The most dominant phytoplankton in the sampling

points surrounding the estuary is Skeletonema sp (> 37%) and the one inthe sampling points in the sea is Volvox sp (> 49%).

Based on the phytoplankton diversity index, the structures of the

phytoplankton community in the studied area is slassified stable until

more than stable, with condition of waters classified fair to good The

highest diversity index is found in point 1 (1.98) and the lowest one in

point 3 (1.30) (See Figure 3.20).

The higher the diversity index is the more stable the community will be.

The more various species in a community, the more stable the community

will be. The more various species in a community is the more complex food

chain will be. The community with less species will have shorter food

chain, and this condition will make the community unstable. The loss of a

species may lead to the loss of other species. The loss of a certain species

can be favorable to the other species and lead to extreme abundance.

b. Zooplankton


79/142

b.Zooplankton

In the studied area there are 43 species of zooplanktons found and

comprising : Crustacea, fish larva, gelatinous plankton, larva Mollusca,larva Polychaeta, Nematoda, Chaetognatha, Protozoa, and Foraminifera.

The most dominant species is Copepoda Calanoida of Acartiidae family

andEucalanidaeas well asBrachyura larva (crab) stadia zoea (See Table

3.20).

Almost in all sampling points around the estuary, both economically and

uneconomically potential fish larva are found. Accordingly, it is probable

that the areas surrounding the estuary and mangrove in Lamong Bay are

hatching grounds and nursery grounds of fish. The existence of larva is

predicted to have relationship with the existence and abundance of natural

food of fish larva, i.e. : Copepoda(ofAcartiidaeandEucalanidae families)

and other Crustacea, such as CirripediadanzoeaBrachyura larva (crab).

Fish larvas bringing economic values are gereh/laosan (of Polynemidae

family), milkfish (of Chanidaefamily), tiny sea fish (ofAtherinidae family),

belanak (of Mugilidae family) and lemuru (of Clupeidae family)

S li P i t

Z l kt Di it I d (H) i L B


80/142

Figure 3.21. Value of Zooplankton Diversity Index (H)

in Lamong Bay (April 2008)

Bentik MicrofaunaThe bentikmicrofauna sampling points are the same as the ones of plankton

sampling. There are 18 species of benthos found surrounding Lamong Bay,

comprising 11 species of epifauna and 7 species of infauna. The dominating

epifauna is Gastropoda (snails), such as : Astyris rosacea, Amphyssa

Sampling Points :

1. Lamong RiverEstuary

2. Sememi RiverEstuary

3. Sememi R.-

Branjangan R.Eastuary

4. Branjangan RiverEstuary

5. Greges RiverEstuary

6. Anak RiverEstuary

7. Anak R.-Branjangan R.Estuary

8. KrembanganRiver Estuary

9. Mirah Pier10. Around Mirah

Pier11. Around Mirah

Pier

12. In front of Bay

Zooplankton Diversity Index (H) in LamongBay

HValue

Sampling Points


81/142

Figure 3.22. Value of Bentik Microfauna Diversity Index (H)

in Lamong Bay (April 2008)

Sampling Points :

1. Lamong RiverEstuary

2. Sememi RiverEstuary

3. Sememi R.-Branjangan R.Eastuary

4. Branjangan RiverEstuary

5. Greges RiverEstuary

6. Anak RiverEstuary

7. Anak R.-Branjangan R.Estuary

8. KrembanganRiver Estuary

9. Mirah Pier10.Around Mirah

Pier11.Around Mirah

Pier

12.In front of BaySampling Points

HValue

Bentik Microfauna Diversity Index (H) in LamongBay

Table 3.20. Composition, Abundance and Diversity Index of Phytoplankton in Waters Area in Lamong Bay


82/142

REPORT OF ENVIRONMENTAL IMPACT STATEMENT 3-44Environmental Impact Assessment Tanjung Perak Port Development in Lamong B ay

Table 3.21. Composition, Abundance and Diversity Index of Zooplankton in Waters Area in Lamong Bay


83/142


Tabel 3.22. Composition, Abundance and Diversity Index of Bentik Macrofauna in Waters Area in Lamong Bay


84/142



85/142

3.4.3. Terrestrial Flora and Fauna

Flora (Mangrove Vegetation)

The initial description of terrestrial flora is focused onmangrove vegetatio as

the project site of port development in Lamong Bay is in coastal ecosystem

and the representative and relevant terrestrial vegetation is mangrove.

Mangorove ecosystem is an ecosystem with tropical community vegetation

growing the coastal area and river estuaries. Mangrove ecosystem is affected

by tide and is sensitive to environmenta changes, such as : salinity, shallowing,

oil spills and sedimentation. The parameters adopted for observing the initial

conditions of the mangrove environment and ecosystem is vegetation density

per hectare (tree/Ha), Important Value Index and Mangrove Coverage

Area(%)

The analysis on mangrove vegetation is conducted in 8 observation point in

North Galang Island, South Galang Island, Lamong River Border, Sememmi

River Estuary, Branjangan River Estuary, Project Site, Greges River Estuary,

and Anak River Restuary The mangrove vegetation is not conserved as the

Table 3.23. Density (Trees/Ha)


86/142

Nr Spesies PGU PGS KL KS KB LP KG KA

1 Aegiceras corniculatum 33

2 Avicennia alba 1650 4554 990 990 4752 198 5613 Avicennia lanata 66

4 Avicennia marina 363 297 957 2970 495 6732 264

5 Bruguiera gymnorrhiza 99

6 Bruguiera parviflora 66

7 Exoecaria agallocha 297 33

8 Lumnitzera racemosa 66

9 Rhizophora apiculata 396 264 1023

10 Rhizophora mucronata 1353 33 4158 33 1353

11 Sonneratia alba 429 33 2046 198 726 99 594

12 Soneratia caseolaris 132

13 Xylocarpus granatum 33 66

Jumlah spesies 5 4 7 3 6 5 6 3

Remarks:

PGU : North Galang Island KB : Branjangan River

PGS : South Galang island LP : Project Site

KL : Lamong River KG : Greges RiverKS : Sememi River KA : Anak River

Density criteria and mangrove category (Decision of Minister of Environment Nr. 201/2004).

Density Criteria Trees/Ha Category

Dense > 1500 Good

Fair > 1000 - < 1500 Fair

Rare/Damaged < 1000 Bad

The mangrove density in the project site that is pretty high isR. mucronata.


87/142

It is a mangrove species adapting with surface land. It is commonly used to

protect the fishpond embankments to stand erosion and sedimentation so

that the fishpond water keeps clear.

.

Mangrove Density (Trees/Ha)

2904

4917

4026 4059

8085

5676

7524

2211

0

1000

2000

3000

4000

5000

6000

7000

8000

9000

PGU PGS KL KS KB LP KG KALocation

TotalIndividu

otal Trees/Ha

Figure 3.23. Mangrove Density Per Hectare

Table 3.24. Important Value Index (IVI) of Mangrove Species

N S i PGU PGS KL KS KB LP KG KA


88/142

Nr Spesies PGU PGS KL KS KB LP KG KA

1 Aegiceras corniculatum 15.2

2 Avicennia alba 149.4 228.6 65.6 78.6 132.7 14.9 42.23 Avicennia lanata 10.2

4 Avicennia marina 28.5 40.6 65.3 89.5 38.2 208.4 47.6

5 Bruguiera gymnorrhiza 12.5

6 Bruguiera parviflora 15.9

7 Exoecaria agallocha 27.5 11.7

8 Lumnitzera racemosa 10.2

9 Rhizophora apiculata 52.5 15.4 73.9

10 Rhizophora mucronata 89.3 9.7 165.2 11.7 173.4

11 Sonneratia alba 53.7 15.6 147.5 47.7 69.2 12.9 79

12 Soneratia caseolaris 27.4

13 Xylocarpus granatum 9.5 13.1

Remarks:

PGU : North Galang Island KB : Branjangan River

PGS : South Galang island LP : Project Site

KL : Lamong River KG : Greges RiverKS : Sememi River KA : Anak River

IVI Criteria (Odum, 2005)

Density Criteria IVI Category

Important 201300 Good

Fair 101200 Fair

P 1 100 P

Coverage Area


89/142

g

67.6

93.1

62.24

85.5

61.9 62.268.6

0

20

40

6080

100

PGU PGS KL KS KB LP KG KA

Location

%Coverage

Avicennia alba

Avicennia mar ina

Rhizophora mucronata

Sonneratia alba

Figure 3.24. Good and Fair Category of Mangrove Coverage

The detailed coverage area of each mangrove species are presented in

Table 3.25.

Table 3.25. Coverage Area (%)

No Spesies PGU PGS KL KS KB LP KG KA

1 Aegiceras corniculatum 0.3

2 Avicennia alba 67.6 93.1 26.7 25.6 62.24 1.5 12.5

3 Avicennia lanata 0.38

3.4.1. Fauna (Birds)


90/142

a. Identified Spesies

There are 39 species of birds included in 22 families found in the studied

area. Ardeidae family has the most number of species, i.e. : 8 species

(Table 3.26).

In the observation point in Sememi River the most number of bird species,

i.e. : 24, while in Lamong River and estuary of Branjangan River 23

species, and in the project site, 9 species identified (Figure 3.25), that are

included into 7 families, namely : Alcedinidae, Apodidae, Ardeidae,

Artamidae, Nectarinidae, Picidae danSilviidae.

Identified Bird Species

2019

23 24

9

23

1613

10

15

20

25

30

TotalSpecies

Number of Species

Table 3.26. Bird Species Identified in Observation Points


91/142

Nr Spesies Indonesian Name Familia PG1 PG2 KL KS LP KB KG KA Fr

1 Alcedo coerulescens Raja udang biru Alcedinidae 1 1 1 1 1 5

2Amaurornisphoenicurus Kareo padi Rallidae 1 1 2

3 Anas gibberifrons Itik benjut Anatidae 1 1 2

4 Ardea purpurea Cangak merah Ardeidae 1 1 1 3

5 Ardeola speciosa Blekok sawah Ardeidae 1 1 1 1 1 1 6

6 Artamus leucorhynchus Kekep babi Artamidae 1 1 2

7 Butorides striatus Kokokan laut Ardeidae 1 1 1 1 1 1 1 7

8 Chlidonias hybridus Dara-laut kumis Sternidae 1 1 1 3

9 Collocalia esculenta Walet sapi Apodidae 1 1 1 1 1 1 1 1 8

10 Collocalia maxima Walet sarang hitam Apodidae 1 1 2

11 Dendrocopus macei Caladi ulam Picidae 1 1 1 1 4

12 Dicaeum trochileum Cabai jawa Dicaeidae 1 1 1 1 1 513 Egretta alba Kuntul besar Ardeidae 1 1 1 1 1 1 6

14 Egretta garzetta Kuntul kecil Ardeidae 1 1 1 1 1 1 1 1 8

15 Egretta intermedia Kuntul perak Ardeidae 1 1 1 1 1 5

16 Gallinula chloropus Mandar batu Rallidae 1 1

17 Geopelia striata Perkutut jawa Columbidae 1 1

18 Gerygone sulphurea Remetuk laut Silviidae 1 1 1 1 1 1 1 1 8

19 Hirundo rusticaLayang-layangrumah

Hirundinidae 1 1

20 Ixobrychus sinensis Bambangan kuning Ardeidae 1 1 2

21Lonchura

leucogastroides

Bondol jawa Ploceidae 1 1 1 3

22 Lonchura punctulata Bondol peking Ploceidae 1 1 2

23 Merops sp. Kirik-kirik Meropidae 1 1

24 Mycteria cinerea Bangau bluwok Ciconiidae 1 1

25 Nectarinia jugularisBurung madu

srigantiNectariniidae 1 1 1 1 1 1 6

26 Nycticorax nycticoraxKowak malam

kelabuArdeidae 1 1 1 1 1 1 6

27 Passer montanus Burung gereja erasia Silviidae 1 1

Phalacrocoracida

Conserved Bird Species


92/142

`

Figure 3.26. Conserved Bird Species

The 14 species identified and found in the studied area are classified into 6

families, namely : Alcedinidae, Ardeidae, Ciconiidae, Nectariniidae,Muscicapidaeand Sternidae.Egretta garzetta (small heron) is the species

that s always found in the 8 observation points. Therefore, it is the most

frequently identified species compared to the others. Mycteria cinerea

(Bluwok heron) is not only conserved by means of the Indonesian State

TotalSpecies

Location

ConservedSpecies

Table 3.27. Conserved Bird Species


93/142

Table 3.27. Conserved Bird Species

Nr Spesies Indonesian Name Famiyi Remrk PG1 PG2 KL KS LP KB KG KA Fr

1 Alcedo coerulescens Raja udang biru Alcedinidae * 0 1 1 1 1 1 0 0 5

2 Ardea purpurea Cangak merah Ardeidae * 1 1 0 1 0 0 0 0 3

3 Ardeola speciosa Blekok sawah Ardeidae * 1 1 0 1 0 1 1 1 6

4 Butorides striatus Kokokan laut Ardeidae * 1 1 1 1 1 1 1 0 7

5 Egretta alba Kuntul besar Ardeidae * 1 1 1 1 0 0 1 1 6

6 Egretta garzetta Kuntul kecil Ardeidae * 1 1 1 1 1 1 1 1 8

7 Egretta intermedia Kuntul perak Ardeidae * 1 1 1 1 0 0 1 0 5

8 Ixobrychus sinensis Bambangan kuning Ardeidae * 0 0 0 0 1 0 0 1 2

9 Mycteria cinerea Bangau bluwok Ciconiidae */**Vu 0 0 0 1 0 0 0 0 1

10 Nectarinia jugularis Burung madu sriganti Nectariniidae * 0 1 1 1 1 1 1 0 6

11 Nycticorax nycticorax Kowak malam kelabu Ardeidae * 1 1 0 1 0 1 1 1 6

12 Rhipidura javanica Kipasan belang Muscicapidae * 1 1 1 1 0 1 0 0 5

13 Sterna hirundo Dara-laut biasa Sternidae * 1 1 1 1 0 0 0 1 5

14 Todirhamphus chloris Cekakak sungai Alcedinidae * 1 1 0 1 0 1 1 1 6

10 12 8 13 5 8 8 7

* Conserved by Indonesian State Regulation Nr. 7 Year 1999(Based on Bird Family)** Status based on IUCN Red List (http://www.iucnredlist.org/search/search-basic)LC (Least Concern) when exist in abundant number and widely spreadVu (Vulnerable) : Vulnerable to extinction

Remarks:

PGU : North Galang Island LP : Project Site F ; FrequencyPGS : South Galang island KG : Greges RiverKL : Lamong River KA : Anak River

KS : Sememi River 0 : Not IdentifiedKB B j Ri 1 Id tifi d

Table 3.28. List of Villages Included into Studied Area


94/142

Sub-districts Villages

Asemrowo Kalianak

Greges

Tambak Langon

Krembangan Morokrembangan

Benowo Romokalisari

Tambak Osowilangon

Source : Statistical Data Surabaya in Numbes in 2007

The locations of socio-economic and culture survey areas are presented

Figure 3.28.

A. Population

In Surabaya City, there are 5 Assistant Mayor territory and Sub-districts

with a total area of 326,37 km

2

with total polulation 2.405.946 persons.It short, the population density in Surabaya City is pretty high, i.e. :

7.372 persons/km2. Of the 28 sub-districts, 3 of them are the studied area,

namely Krembangan Sub-district, Asemrowo Sub-district and Benowo

Sub-district.

0830

210

0800

0693267

Remarks Observation Point of Socio-Economic andCulture Components


95/142


Source :

DIGITAL INDONESIAN MAP YEAR 1999I I

1 0 1SKALAU

TA R

A

1430

1400

9200

1330

1300

1230

1200

1130

1100

9205

1030

1000

0930

0900

92

440

443

91982429198293 380

383

0680

Balongsa

393

0685

Balongsa

410

413

420

06

0693214

-

-

Figure 3.28

Observation Point of Socio-Economic and Culture Components

Rute nelayan melaut

tanpa kegiatan

Rute nelayan melaut

dengan kegiatan

Table 3.29. Total Population and Population Density in Studied Area

City Villages Area (ha)Population Density


96/142

City Villages Area (ha) (Persons) (Persons/ha)

Surabaya

Kalianak 202,0921.479 7

Greges 419 4.033 10

Tambak Langon 228 2.259 9,91

Morokrembangan 317,1 35.303 111

Romokalisari 756 2.109 3

Tb Osowilangon 846 3.263 4

Source : Monograph Data Year 2006-2008 from vatious villages in the Studied Area of

Environmental Impact Assessment for Tanjung Perak Port Development in Lamong Bay

Occupation

The population has various jobs, although many of the them are still

jobless. In Kalianak Village, most of the population works in private sector

(23.58%). Yet, the number of the jobless people is significant (61.58%).

In Greges Village most of the population is students (42.13%), fishermen

(19 51%) d l b (17 78%) I M k b Vill t f th

Table 3.30. Occupations of Populations in Studied Area


97/142

Nr Occupations

VILLAGES

Kalianak Greges Tb LangonMoro

krembangan

Romokali

sari

Tb Oso

WilangonPercentage

(%)Percentage

(%)Percentage

(%)Percentage

(%)Percentage

(%)Percentage

(%)

1 Unemployed 61,58 2,26 5,7 0,35 91,75 39,85

2 Farmer 0,00 0,35 1,36 0,11 0,00 2,12

3 Fisherman 1,04 19,51 1,85 0,14 0,38 3,70

4 Merchant 0,69 4,92 25,56 1,30 0,14 3,03

5 Public Servant 0,55 0,80 0,80 3,21 0,24 0,49

6 Armed Force 0,49 0,67 0,00 1,91 0,33 0,12

7 Police 0,14 0,13 0,00 1,66 0,00 0,00

8 Ret. Armed Forces 0,00 0,44 0,00 0,78 0,00 0,21

9 Retired Police 0,00 0,00 0,00 0,37 0,00 0,00

10 Ret. Pub. Servant 0,07 0,49 0,00 21,06 0,00 0,09

11 Private Merchant 23,58 5,28 12,78 8,44 0,00 14,29

12 Private Person 0,55 2,44 12,78 9,29 0,28 12,75

13 Labor 0,42 17,78 9,09 0,12 6,88 0,15

14 Maid 0,00 0,00 0,00 0,09 0,00 0,27

15 Student 10,40 42,13 11,9 47,30 0,00 20,79

16 College Student 0,35 2,44 0,00 2,51 0,00 1,12

17 Medical Doctor 0,00 0,00 9,09 0,09 0,00 0,06

18 Teacher/Lecturer 0,07 0,18 9,09 1,15 0,00 0,85

19 Medical Practitioner 0,07 0,18 0,00 0,13 0,00 0,09

20 Public Officer 0,00 0,00 0,00 0,00 0,00 0,00

Population Income


98/142

1. Greges Village

Based on the results of household survey in Greges Village, it is found

that the most dominant income range of the population is Rp. 701,000

Rp. 1,000,000 (35%). 29% of the population earns Rp. 300,000 Rp.

700,000. 20% of the population earns > Rp. 1,000,000 while 16% earns

< Rp. 300,000. The details of the income are presented in Figure 3.29

below.

Population Income

Penghasilan Nelayan

Fisherman Income


99/142

Figure 3.30. Percentage of Fisherman Income in Greges Village

The main occupation of the population in Greges Village is as

fisherman. They have side jobs, such as private sector, boat maker and

serviceman, teacher and labor.

2. Kalianak Village

12%

41%

12%

35%

< Rp. 300.000

Rp. 300.000 - Rp. 700.000

Rp. 701.000 - Rp. 1.000.000

> Rp. 1.000.000

Penghasilan Penduduk

Population Income


100/142

Figure 3.31. Percentage of Main Occupations in Kalianak Village

The percentage of income of the population as fishermen in Kalianak

Village are at most 56%, earning < Rp.300,000. 44% earns >Rp.1,000,000, at the second rank. Further details are presented in

Figure 3.32.below.

18%

10%

28%

44%

< Rp. 300.000

Rp. 300.000 - Rp. 700.000

Rp. 701.000 - Rp. 1.000.000

> Rp. 1.000.000

3. Morokrembangan Village

d h l f h h ld i k b ill


101/142

Based on the results of household survey in Morokrembangan Village,

it is found that the most dominant income range of the population is >

Rp. 300,000 Rp. 700,000 (38%). 38% of the population earns >

1,000,000. 19% earn Rp. 701,000 Rp. 1,000,000 in the second rank.

5% of the population earns < Rp. 300, 000,000. The details of the

income are presented in Figure 3.33.below.

5%

38%

19%

38%


< Rp. 300.000

Rp. 300.000 - Rp. 700.000

Rp. 701.000 - Rp. 1.000.000

> Rp. 1.000.000

Population Income

h il l


102/142

Figure 3.34. Percentage of Fisherman Income in Morokrembangan

Village

Based on the results of household interviews the main occupation of the

population in Morokrembangan Village is as fisherman. They have no

id j b

12%

75%

0%13%

Penghasilan Nelayan

< Rp. 300.000

Rp. 300.000 - Rp. 700.000

Rp. 701.000 - Rp. 1.000.000

> Rp. 1.000.000

Population Income

P h il P d d k

S l


103/142

Figure 3.35. Percentage of Main Occupations in Tambak

Osowilangun Village

The percentage of income of the population as fishermen in Tambak

Osowilangun Village are at most 70%, earning Rp. 300,000

Rp.1,000,000. 20% earns > Rp.1,000,000, at the second rank. 10%

17%

39%22%

22%


< Rp. 300.000

Rp. 300.000 - Rp. 700.000

Rp. 701.000 - Rp. 1.000.000

> Rp. 1.000.000

Scale


population in Tambak Osowilangun Village is as fisherman. They have


104/142

side jobs, such as : labor, salt loading unloading porter, fishpond worker

and private person.

5. Tambak Langon Village

Based on the results of household survey in Tambak Langon Village, it

is found that the most dominant income range of the population is Rp.

300,000 Rp. 700,000 (59%). 22% of the population earns > Rp.

1,000,000 in the second rank. 15% of the population earns Rp, 701,000

Rp. 1,000,000. 4% earns < R. 300,000. The details of the income are

presented in Figure 3.37.below.

4%

22%


< Rp. 300.000

R 300 000 R 700 000

Population Income

Penghasilan Nelayan

Fisherman Income


105/142

Figure 3.38. Percentage of Fisherman Income in Tambak Langon

Village

Based on the results of household interviews the main occupation of thepopulation in Tambak Langon Village is as fisherman. They have side

jobs, such as : labor and loading and unloading porter.

6. Romokalisari Village

0%

57%

0%

43%

< Rp. 300.000

Rp. 300.000 - Rp. 700.000

Rp. 701.000 - Rp. 1.000.000

> Rp. 1.000.000


106/142


population in Romokalisari Village is as fisherman. They have side


107/142

jobs, such as : seasonal brick layer and carpenter.

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