Environmental
Assessment/Analysis
Reports                            \ O
Report E0035
INDONESIA -
Outer Islands
Power Project
EA Category A
Environmental Assessment
2 of 4
April 1994
This report has been prepared by the Borrower or its Consultant



r-
PT. (PERSERO) TAMBANG BATUBARA BUKIT ASAM
|UKIT ASAM
,. .. .. .. ................ . . . . ......... .
THE ENVIRONMENTAL IMPACT ASSESSMENT OF
THE WEST ASAM-ASAM COAL MINING PROJECT
IN BLOCK 6, SOUTH KALIMANTAN
INDONESIA
1994
INDONESIA
PT. ARUTMIN INDONESIA
Mid Plaza Building
JI. Jendral Sudirman Kav. 10-11
JAKARTA, INDONESIA



PREFACE
PT. Arulmin Indonesia planned to develop the West Asam-asam coal mine, the initial part of the Asam-
asam coal deposit within Block IV contract area under contractual agreement wilh PT (Persero) Bukit
Asam Coal Mine. The coal deposik area is located at the Southwestern most part of Asam-asam coal
deposit, Regency or Tanah Laul, South Kalimantan. The mining devehopnent is proiected to supply coal
for Banjarmasin Mine mouth Power Plant (600 MM, funrded by the World Bank. in o!der to increase power
generating capacity for the future Kalimantan interconnection.
In order to ensure environmentally sound resource development in conjunction wih the Government of
Indonesia's policy in enhancing sustainable development and The World Bank requirements, PT. Arutmin
Indonesia has conducled the Environmental Impact Assessment for the coal mine project in accordance
to the government of Indonesia regulalion and procedures guidelines for Environmental Impact
Assessment and Review Process, especialy the Decree of the Ministry of Mine and Energy No.
01851//MIM. PE/1 988 for which presentatirn and evaluation by the Environmental Impad Assessment
Cenlral Committee (Komisi Pusat AMDAL) Departnent of Mine and Energy had been conduded
December 30, 1993.
During the survey November 22, 1993, the scoping and preliminary result of Environme;dal Field
preliminary evaluation had been presented to the local authority at Provincial and Regency Levei attended
and discussed also wilh Local NGO (WALHI and Kompas Bomeo) on local aspiration at earliest stage of
the study. And This documents has indudes any recommendation by the AMDAL Commission MPE and
local aspiration and wik be followed as references guideline in project development process.
The documents consist of two pant which cannot be seperat2d indudes in this submission:
Part 1 : Endronmental Impact Assessment Report (ANDAL REPORT)
Part 2A: Environmental Management Plan (RKL))
Part 2B: Environmental Monitoring Plan (RPL)
Finally, we would like to present our gratilude to all the participants from both the consultant and thn
AMDAL Commission of the Department of Mine and Energy, the local authority and NGO for which with
out their valuable contribution this document would not be materialized.
Jakarta, January 1994
The Proponent
I~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~



PART 1
... ......**......*............. ........... ..... ..... .... .............. ....S............... ...
THE ENVIRONMENTAL IMPACT ASSESSMENT OF
THE WEST ASAM-ASAM COAL MINING PROJECT
IN BLOCK 6, SOUTH KALMANTAN - INDONESIA
PT. ARUTMIN INDONESIA



TABLE OF CONTENT
Page
PREFACE ............... i
TABLE OF CONTENT ............                                                                   ii
UST OF TABLE. ............ iv
LIST OF FIGURE ......... vi
UST OF TABLE IN APPENDIX ...............................................   viii
CHAPTER I  INTRODUCTION ...............................................                          1
1.1  Background . ..................................... 1-1
1.2   Policy and Regulations on Environmental Management ......        ........ 1 - 5
1.3    Environmental Impact Key Issues .............................   1-8
1.4    The Objectives and Use of Study  .............................   1-9
1.5  Scope of Work ......................................  -11
1.6    Methodlogy  ...............................  1 -17
CHAPTER 2 PROJECT RATIONALE .............2-........1........                              .. 2-1
2.1  The Proponent ............. 2-1
2.2 The Consuant .......... 2-1
2.3    The Objective and Benefit of The Projei  ........................  2-2
CHAPTER 3  PROJECT DESCRIPTION .....................................    3-1
3.1    Project Development Plan .................................... 3-1
3.2    Resource Description .....................................   3-5
3.3    Mining Operalion Plan ..      ................................ 3 -13
CHAPTER 4  INITIAL ENVIRONMENTAL SETTING ...............................  4-1
4.1  Climate .................. 4 - 1
4.2    Terrain and Geology ......................  4 -10
4.3    Hydrology,/Geohydrology ......................                          4-24
4.4    Flora and Fauna ..................   4 -33
4.5    Socio-economi & Socio cultural ..........          ............  4-50
BAMr.PAte. anEBBS                                     EI1AHE WEST ASAM-ASAM COAL MINE DEVELOPMENT
SOUTH KAUMANTN



r                                                                                                          Page
CHAPTER 5 PREDICTION OF IMPACTS  ....................................    5- 1
5.1    Preparation Stage .    ....................................  5 -1
5.2    Mine Operation Stage ....................................   5-10
5.3    Post Mining Actitiess ....................................   5-19
CHAPTER 6 SIGNIRCANT IMPACTS EVALUATION  . ................................ 6-1
6.1    Mining Preparation Stag  ...................................  6-1
6.2 Mining Operation Stage ..                                                 6 - 7
6.3  Post Mining Operation Stage          ..                                  6 -14
CHAPTER 7 GUIDEUNES FOR IMPACT MANAGEMENT .7-1
7.1 The Scope d Impact Management .7-1
7.2  Guidelines for Impacts Mrnnagement.                                      7-1
APPENDICES
Appendix 1.  Air Qualty Data %naIysis
*  ' .             Appendix 2.  Water Quality Data Analysis
Appendix 3.  Aquatic Biota Data Analysis
Appendix 4.  Response Letter From Komisi Pusat Amdal Departemen Pertambangan dan Energi on
Term of Reference
Appendix 5.  Curriculum Vitae
Appendix 6.  Bibliography
B1OMWPAat 2UL                                       BE-E WESr ASAMASA  COAL lNE DEVELOPLNW
r                               SOUTh KAANT



: 19
-                      -                            UST OF TABLE
Table No.                                                                               Page
CHAPTER 1.
1.1          Paramelers and Methods for Air Quality Analysis    ....................... 1 -17
1.2          Characteristics of Samples Loccoss ...............................  1 -19
1.3          Parameter and Method for Hidrological Analysis . .......................  1 -20
1.4          Parameler for Physical, Chemica and Bioogical Characteristics,
Instrument and Method ......................  1 -22
1.5          Slalus of Water Quality Criteria Ambient ..............................  1 -24
1.6          Classification on Degree of Poution .................................  1 -25
1.7          Parameter and Method for Flora & Fauna Analsis ........... ...........  1 -29
1.8          Parameter and Merhods for Social Economical and
Culture Component .Analsis ........ ..............................  11-31
1.9          Types and Sources d SecoundaiyData .............1-.2..........  1
CHAPTER 3.
t 3.1                            West Asam-asam Mine Producion Schedule.                                   3-2
32           Number of Personnal Requirements .                                         3-31
3.3          Mining Equipments ......       .....                    ;                  3-32
CHAPTER 4.
4.1          Climatology DataSt. Peaihad, South Kalimanlan (1982 - 1991) .....  .......  4-2
42           Climatology Banjarbaru SL Banjarbaru, SotAh Kalmantan (1975 - 1990) ......  4-2
4.3          Climate Data of Site Localion ..................;                          4-7
4.4          Measurement Analysis Air Quality and Noise West Asam-asam
Coal Mine Project, Environmental Impact Assessment .                       4-8
4.4A         Tiurbidiy and Sediment Content ......... ...........................  4-26
4.4B         Erosion Level ................................................. 4-27
4.5          River Water Quarty Parameters Status, Exceding Clss B Standard ..... .... 4-30
4.6          River Water Qualty Parameter Status, Exceeding Class C Standard for
Fishery .                                                                  4-31
4.7          Water Quality Parameter Status, Exceeding Class D  Standard for
Agriculture .                                                              4-31
BA=WPAM IW7EJ                                       BAME WEST ASAMASM COA    DEVELOPMENT
iv                             SOUTH KAANTA



Table No.                                                                        Page
4.8         Pollution Level Based on Nutrients, Organics Matters and Organism
Diversity .........................................                 4 -32
4.9         Dug Well Pollution Level, Based on Nutrients anda Organic Matters ..... .... 4 -33
4.10        Forest Vegetation Composition at Proposed West Asar-asam Mine ..... .... 4 -35
4.11        Home Garden Vegelatloin at Simpang Empat, Asam-asam Village ..... ...... 4 -38
4.12        Forest Vegetation Composikion at Proposed West Asam-asam Mine Site for
Coal Haulage to Coal Mouth PLTU .      ;. 4 -39
4.13        Species of Mammals in The Study Area .                              4 -41
4.14        Species of Bird in The Sludy Area .                                  4 -43
4.15        Species of Repils and Amphibians in The Study Area .                4 -45
4.16        Plankton Condition of Asam-asam River Watershed .                    4 -46
4.17        Benthos Condition, Asam-asam River Watershed .                       4 -47
4.18        Fish Species in Asam-asam River .                                    4 -48
4.19        Fishes Species on Fresh Waler and Marine Aqualiq in
Kabupalen Tanah Laut - South Karimantan ............. ............... 4 -49
4.20        Population Growth, and Density of Vilangers at Project Localion ...... ...... 4 -51
4.21        Population Structure (Age, Sex) of Vilangers at Project Location ..... ....... 4 -51
4.22        Population Educalion Level of Villangers at Projet Location ...... ......... 4 -52
4d23        Population Main Occupation of Villangers at Project Location ............... 4 -53
4.24        Land Use Village at Proiect Site.                                   4 -54
3 *             4.25        Areal and Local Community Land Production and Transmigration.        4 -55
4.26        Family Subsistence Demand ...................................... 4 -57
4.27        Brackish-Water Ponds Productivity ..........   4 -58
4.28        Number and Type of Medical Fadliy in Project Area ....  ......  4 -64
4.29        Important Disease In Project Area ..........   4 -65
CHAPTER 5.
5.1         Matrix Significant Impact Identification Coal Mining Activities ......... .  5 - 2
52          Characteiistic of Acidic Waste Water ..........   5 -16
CHAPTER 6.
6.1         Matrix Significant Impact Evaluation Coa Mining Activities ...... ....  6-2
SA=:WPA.EME                                    EITE WEST ASAM.ASM caL MINE DEVELOPMENT
v                           SOUTH KALMNTAN



UST OF FIGURE
Figure No.                                                                                     Page
CHAPTER 1.
1.1           PT. ARUTMIN Location Map ..................................                      1 -2
1.2           West Asam-asam Resources Location Within Block 6  ...................1 -3
1.3           West Asam-asam Coal Mine PLTU Asam-asam Location Map ......            ........  1 -4
1.4           EIA Study Boundary ........................................ 1 -12
1.5           Sampling Map for Water & Air Qualy  ................         ...............  1 -18
CHAPTER 3.
3.1           West Asam-asam Coal Mining Development Activity  .......         .............  3-3
3.2           Location Map of West Asam-asam  Coal Mining Project .......         ...........  3-4
3.2A          Geology Map of Asam-asam Deposit Zone  ................. ..........  3-6
3.3           Regional Stratigraphic Column  ....................................    3-7
3.4,          Schematic Seam Correlation West Asam-asam  .........          ...............  3-9
3.5           Presentable Trace Element Analsis of Asam-asan Lignite Coal .....       .......  3 -11
3.6           Typical Model of Active Pit Mining ..................................  3-16
3.6A          West Asam-asam Mining Deveopment Schedule .            ......................  3-17
3.6B          Mining Pit Layout Is 5 Years ..................................                 3-18
3.6C          Mining Pit Layout 2  5 Yeas ......................................   3-19
3.60          Mining Pit Layout 3" 5 Years ..................................                 3-20
3.6E          Mining Pit Layout 4 5 Years ..................................                  3 -21
.6F           Mining Pk Layout  5 Years ....................................... 3 -22
3.6G          Mining Pit Layout Sales Cease ...... 3-23
3.7           Typical Stripping Benches ........                                              3-25
3.7A   Typical In-Pit Haul Road Benches .                                                     3-26
3.8   Typical Haulage Coal Road Corridor .                                                    3-28
3.8A  Haul Coal Road Alignment .                                                              3-29
3.9           Conceptual Lay-out Mine Service Facility West Asam-asam ............... 3-33
3.10          Typiua Lay-out of Crushing Plant and Stockpile ........................ 3-35
3.11          Typical Lay-out for Coal Stockpile and Drainage ............     ............  3-36
3.12          Typical Design of Sedimentation Pond ............................... 3 -38
BaToc.W.Rm. ,2f                                        BATHE WEST ASAUASAM COAL MINE DEVELOPMENT
SOUTH KWLMNTAN



Figure No.                                                                       Page
CHAPTER 4.
4.1         Mine Annual Rainfall ..............................  4- 3
4.2         Wind Direction and Velocity Diagram 1982-1991 Station Baniarmasin, South
Kalimantan (January - June) .                                         4 - 5
4.3         Wind Direction and Velocity Diagram 192-1991 Station Banjarmasin, South
Kalimantan (July - December) .4 - 6
4.4  Morphology Map.                                                              4 -12
4.5         Regional Stratigraphy Column.                                         4 -13
4.6         Asam-asam Ugnte Deposit Arera .4 -15
4.6A        Miocene Stratigraphic Column in Asam-asdm Area .4 -17
4.6B        Boring Localion at West Asam-asam .4 -18
4.6C        Geological of Map West Asam-asam.                                    4 -19
4.7 Land .4-20
4.7A        Detail Soil Type, West Asam-asam.                                     4 -22
4.8  Land Use Map.                                                                4-23
4.9         Asam-asam River Tribtjuaries.                                        4-25
4.10        Hydrogeological Map West Asam-asam.                                  4 -29
CHAPTER 5.
6                5.1         Flow of Impact Mining Preparation.5 - 3
5.1         Flow of Impact Mining Operation Stage.                               5-11
5.1         Flow of Impact Post Mining Operation Stage .5-20
BkT8C.WPRAL2l                                  EIA-TH4E WEST ASMASAW COAL  EDEVELOPMENT
vi                           SOUrH AUMANTAI



LIST OF TABLE IN APPENDIX
*   r             Appendix
r                  1. Air Quality Data Analysis
- Hasil Analisis Kualias Udara Rencana Tambang Batubara, Kommaan Joong, Kabupaten Tanah
Laut - Kalimantai Selatan.
- Data Lapangan Pengukuran Tingkat Kebisingan Rencana Tambang Balubara Asam-asam -
Kalimantan Selatan.
2. Water Quality Data Analysis
Table 1. Water Quality Data and Status Analysis (For Class B)
(Naiyah River, Asam-asam Watrrshad)
Table 2. Water Quality Data and Status Analysis (For Class B)
(Naiyah River, Asam-asam Watershad)
Table 3. Water Quality Data and Status Analysis (For Class B)
(Rangkan River, Asam-asam Watershad;
Table 4. Water Qualry Data and Status Analysis (For Class B)
'  _                          f(Rangkan River, Asan-asam Watershad
Table 5. Water Quality Data and Status Analysis (For Class B)
(Asam-asam River)
Table 6. Water Quality Data and Status Analysis (For Class B)
(Asam-asam River)
Table 7. Water Quality Data and Status Analysis (For Cass B)
(Asam-asam River)
Table 8. Water Quarity Data and Status Analysis (For Cass B)
(Asam-asam River
Table 9. Water Quality Data and Status Analysis (For CLss C)
(Naiyah River, Asam-asam Watershad)
Table 10. Water Qualily Data and Analysis (For Class B)
(Naiyah River. Asam-asam Watemshad;
Table 11. Water Qualily Data and Status Analysis (For Class C)
(Rangkan River. Asam-asam Watershad)
Table 12. Water Quality Data and Stalus Analysis (For Class C)
(Rangkan River, Asam-asam Watershad)
ErtoCWP.Ra1.                                     BA.IHE VEST ASAwkSM COL MINE DEVELOPMBNT
VI                            SOMH KNJMTAN



Aedix
Table 13 Water Quality Data and Status Analysis (For Class B)
(Asam-asam River)
Table 14. Water Quality Data and Status Analysis
(Asam-asam River)
Table 15. Water Quality Data and Status Analysis (For Class B)
(Asam-asam River)
Table 1. Water Quality Data and Status Analysis (F.,r Class B)
(Asamn-asam River)
Table 17. Water Quality Data and Status Analysis (For Class B)
(Asam-asam River
Table 18. Water Qualily Data and Status Analysis (For Class D)
(Naiyah River, Asam-asam Watershad)
Table 19. Water Ouality Data and Status Analysis (For Class D)
(Naiyah River, Asam-esam Walershacd
Table 20. Water Qualily Dala and Status Analysis (For Class D)
(Rangkan River, Asam-asam Watershad)
Table 21. Water Quality Dala and Status Analysis (For Class D)
(Rangkan Rivef, Asam-asam Watershed)
Table 22. Waler Quality Data and Status Analysis (For Class D)
*                             (Asam-asam River)
Table 23. Waler Quality Data and Status Analysis (For Class D)
(Asam-asam River)
Table 24. Waler Quality Data and Status Analysis (For Class D)
(Asam-asam River)
Table 25. Water Quality Data and Slatus Analysis (For Class D)
(Asam-asam River)
Table 26. Water Quality Data and Status Analsis (For Class B)
(Asam-asam)
Table 27. Water Quality Data and Status Analysis (For Class B)
(Stockple Pond, Satui Mine)
Table 28. Water Quality and Status Analysis (For Class C)
(Ex Mine Pond, Coal Mine Satuq
3. Aquatic Biota Data Analysis
Table 1. Planklon Composition and Diversity Index
Table 2. Benthos Composition and Shannon & Wiener Diversity Index
BA1OC.WA  anEEe6S                                SAMTHE WEST ASAM-ASM COAL MINE DEVK.OPUENT
SOUTH IALANTAN



Appendix
4. Response Letter From Komisi Pusal Amdal Departemen Peitambangan dan Energi on Term of
Reference
Tanggapan Terhadap KA ANDAL Rencana Penambangmn Balubara Daerah Asam-asam
- Tanggapan Komisi Pusat AMDAL DPE
5. Curriculum Vitae
- India Budiman Syamwil
Erri Nwiar Megantara
- Rudi Sayoga Gautama
- Chunaeni Latief
- Cecep M. Roem
- Ano Sunarno
- Hisyam Achmad
- Vedi Arilin
- Trigeany Linggoalmodjo
- Agust Siswanto
- Hamonangan Siregar
6. Bibliography
5a%o=WPAI 2OMEM                                 EAW   WEST ASAASW  COAL M N DEOOPENT
*x                           SOUnH KAUMNTAN



* 1
: pi
CHAPTER 1
INTRODUCTION
THE ENVIRONMENTAL IMPACT ASSESSMENT OF
THE WEST ASAM-ASAM COAL MINING PROJECT
IN BLOCK 6, SOUTH KAUMANTAN - INDONESIA
PT. ARUTMIN INDONESIA



PT. ARUTMIN INDONESIA                                                            1-1
CHAPTER I
INTRODUCTION
1.1    BACKGROUND
The Government of Indonesia (GOI) since 1979 had launched the policy for strategic energy resources
conservation and diversficalion follwing the globW ol crisi during the period of 1973-1974. The policy
had placed coal as one of the strategic energy resources for further enhancement of the country's socio-
economic development plan.
In 1981 PT. Arutmin Indonesia entered into an agreement with the Indonesian government for the
exploration and development of the Kalimantan PT. (Persero) Tambang Batubara Bukkit Asm (PTBA)
Block 6 contract area; 1,100 kilometers norlheast of Jakarta (Figure 1.1 8 1.t. By early 1983, the
exploration program was sufficiently advanced to indicate that commercial development of bituminous coal
reserves was feasible at several sites in lhe area. Further exploration during 1988 and 1989 defined
additional biuminous coal reserves in the Satul, Ala and Pulau Laut deposks and very large lignie
resources at Sarongga and Asarn-asam.
The West Asam-asam coal mine development is the continuation of coal reserve development within Bock
6 contract area and the first stage develpment d the Asam-asam lignite deposit. The Project located in
the 5 Km southwestern most part of the Asam-am  Ignie deposit, near the Asam-asam village and
Asam-asam river, Kabupaten Tanah Lat, Southeast of Kalimantan Selatan Province, 10 Km in land to
the coast. The lignie coal deposit is currently under contractual obligations for suppling coal for the futue
PLTU Banjarmasin (Coal Fired Mine Mouth Power Plant. 660 MW). adjacent to the South Asar-asam
river, approximately mid-way between the resource reserve area and the coasie (Fxgure 1.3).
Approximately 50 million tonne of reserve has been identiied within dose proximity of the site at the
westem border of the Asam-asam reserve. The mining will utlize the open pit mining with truck and
shovels, which will occur in a series of boxculs and incrementaly developed, uncover single seams to the
contractual highwall limits, centering around 4 to 1 (BCMslonne). The steady state mine mouth deliveries
are expeded to be 2 milion tonnelyor, which wE secure supply to the PLSU for 25 years. The coal will
be stockpiled in the mine area prior to derivery through 5 kms haul road to the PLTU site.
The steeply dpping resource demands out--pit overburden storage ske ocated up cip from the pits.
During development, approximately 7 milDion BCMs wil be stored in this manner either permanenty or
hauled to final voids at the end of the mine's le.
G&WA1.WAU  ERM                                E-;HE WESr AWSMW     L CX E WEVEBOPME
SOUTh KVArMTAN



1 -2
Figure 1.1
PT. ARUTMIN LOCATION MAP
TAIWAN
CHINA
2 H~~~ONG KONG
BURMA 
_G} <   <(  U                 e  ( ~~~~~~PHILIPPINES
MANILA
'ATHAILANO                                            aS
;2  .   v                  ^     S o      ~~~~~~PT -ARUTMIN
s ;         ~~SOUTH CHINA SEA                           BLOCK 6'
9mSYSMALAYSI
sx  >      ~SINGAPORE <  e   ;;'_       /ISLAWESI
XANJARMASIN
DCFJKAT



,l                                                                                            1-3
Figure 1.2
WEST ASAM-ASAM RESOURCES LOCATION
WITHIN BLOCK 6
! X
INDEKS PETA
.  --                                                                    ,   1   F              a.KALIMANrAA
C,
-LEGEND                                                              f IL Ov""am",
Relnqished Area Nov. I92"I- '-'']m 
Relinquished Aeea Nov. 1985 i!.-'-1SWt
RdmpshaAma¶                                                       r dNov. 1990  Jw
Retmed Aryea ; lii|v
El  BMifSArea               :                                .................. 
ASAM ASA



ip                                    5                     *,
Figure 1.3
WEST ASAM-ASAM COAL MINE
PLTU ASAM-ASAM LOCATION MAP                _                                               -_
s~~~~~~~ ~ ~~~~~~ L- r,                   .5Ax   ,KM                      ' .;  ('
>    s  \  /\WESTASAM-ASAMCOALMINE~~~~~~~~~~sw                     T
S  PLTU 



.i Ij
PT. ARIJ'MIN INDONESIA                                                           1 -5
''.4    !
Reclamation mcliies will take place as contemporaneous as possible. Inkial relamation wI begin In year
3 after pioneering boxcuts are finished.
The thin overburden development prohibkIs total positive drainage. OptimkizatIon d dislurbed lands to pie-
mine drainage condDions will be approximated where possibe. Post mining land use Is planned to be
centered around production forestry, natural vegetation, and wet lands establishment. Wih final pit voids
ading as sediment control structures. The undrainable stuclures wii proide the impetus for
devebpmental study of potential aqua-farming enlerpris  should they be proven vible.
In accordance to the Govemrnent Policy and the intention of the proponent to minimize the environmental
significant negative impact, whib enhamncing the positive Impact throughout the project activity starting from
Initialion slage, construction of facitiles and infrastructures, mining operation stag and pod mining
activity. The proponent herewith has conducted the Environmental Impact Assement (ANDAL) in
accordance to regulation.
The Environmental Impact Assessment Report documen  wil further be used as guidelines for
envronmental management for the entire stage d the Asam-asam coal mine resource extraction activkies.
1 2    POUCY AND REGULATIONS ON ENRONMENTAL MANAGEMENT
*1 ,
(1)    POUCY ON ENVIRONMENTAL MANAGEMENT
Despite its potenlial positive irpact to the socioeconic deveopme at regional and/or iocal level, coal
mining developmern and Is related acivities may have the negative nimpacts to the environmenL
Therefore, it is knpodant for evey singe develom   to combine effort for an integrated, onmentai
managemet in order to minimize negative impacts.of the develpnt projecl, so that the deepment
can be optnoly conducted, for natural resources onservation and  rsevatn, maining the
harmonios, babnce and sustainabiliy d the environment resiency and carrying capacily.
These objeces can be reach by conducting the environrmentally sound mining development activily,
taking into account the following considerations:
a.    Maintaining environmental resiliency and carrying apacity of environmental componenis including
natural resources, water resources, forestry resources, land water quality and other components
which may determine the environmental carrying capacity.
b.    Minimizing negative environmenal imnpacts of the activiy and enhancing the positive knpacts.
EKW#"-WAAL MEM                                   E  WET  ASAII COAL  ^LNE DEVEPMB
SwOUH KIwqITAN



PT. ARUTMIN INDONESIA                                                            1 -5
(2)    RELEVANT REGULAMONS
The Environmental Impact AssessmenUANDAL shall be conducted in accordance to regulations and
guidelines of the Government of Indonesia and relevant Ministries as follows:
a.    Law, UU No. 4, 1982, on Basic Prowision for Environmenla Management (Ketentuan-ketentuan
Pokok Pengelolaan Ungkungan Hidup).
b.    Law, UU No. 5, 1990, on Natural Resources Conservation and their Ecosystems (Konservasi
Sumberdaya Alam Hayati dan Ekosistemnya).
c.    Govemment Regulation, PP No. 51,1993, on Environmentai Impact Analysis (Analisis Mengenai
Dampak Lingkungan/AMDAL).
d.    Govemment Regulation No. 20,1990, on Water Pollution Control (Pengendarian Pencemaran Air).
e.    Decree of the State Minister for Population and Environment, No. Kep-491MENKLHI6/1978,
Guidelines for Significant Impact Determination (Pedoman Penentuan Dampak Penting).
f.    Presidential Decree, No. 55,1993, on Land Tithing for Deveopment implementalion for Public
*-  -                  Use (Pengadaan Tanah Bagi Pelaksanaan Pernbangunan Untuk Kepentingan Umum).
g.    Decree of the State Minister for Population and Environment, No. Kep-50/MENKlI-11-987.
Gtidelines P.ocedure for Environmental Impact Analysis (Pedoman Penyusunan Analisis
Mengenai Dampak LingkungarVAMDAL).
h.    Decree of the State Minister for Population and Environment, No. Kep0YMENKLI V111991, on
Gtidlines for Environmental Quality Standard Determination (Pedoman Ketetapan Baku Mutu
Lngkungan).
i.    Decree of the State Minister for Population and Environment, No. Kep-03MENKI-11111991, on
Standard Quardy Waste Water (Baku Mutu Umbah Cair).
j.    Decree of the Minister of Mines and Energy No. 01 5W/KOO8IMPEf1 989, Guidlines Procedure for
Environmental Impact Assessment for Mining and Energy Developmient Projects (Pedoman
Penyusunan ANDAL Untuk Proyek-proyek Pertambangan dan Energ).
BANWAU. =Eu1                                   EWTK VBT ASAMAWSM COAL MN  DEVRoPINT
SOUTH KALMANT



PT. APARJTLN INDONESIA                                                           1- 7
k.    Decree d the Minister d Mines and Energy, No. 01 58.0iOiMPE11 988 on Technical Guidelnes
for the Preparation d Initial Environmental Evauation Report and Environmental Impact
Assessment (Pedoman Teknis Penyusunan PIL dan ANDAL).
1.    Decree of the Minister of Mines and Energy, No. 041P/M/1977 on Prevention and Measures for
Disturbance and Pollution Affected by Mining Activities (Pencegahan dan Penanggulangan
Terhadap Gangguan dan Pencearan Akibat Usaha Pertambangan).
m.    Decree of the Directorate General of General Mining, No. 07/DU11978, on Prevention and
Measures for Disturbance and Pollution Affected by Open Cut Mining (Pencegahan dan
Penanggulangan Terhadap Gangguan dan Pencenwaran Akibat Penambangan Terbuka).
n.    Circuiar, Directorate General of General Mining, No. 14/EDR-DUII 980, on Operating Gtidesines
for Environmental !impadt Management (Pedoman Operasi Untuk Pengelolaan Danipak
Lingkungan).
o.    Ministry of Healh Regulabtions No. 173IMENKESIPERJVIII77, on Water Pduoion Corntrd for
Relevant Utilzation Related to Public Health (Pengendalian Pencemaran Air untuk Penggunaan
yang berhubungan dengan Kesehiab.4 Masyarakat.
.p.    Interrnistrial Decree, Minister of Mine and Energy No. 969JOK M.PE11989 and Minister of
Forestry No. 429/KPTS-11/1 969, on Gwdemnes for Implenentation Management for Mining and
Energy Activities within Forestry Area (Pedroman Pengaturan Pelaksanaan Pertambangan dan
Energi dalam Kawasan Hutan).
q.    Decree oF the Minister of Minsw and Energy No. 01 85W008/MPEI1 988, on Technical Gudines
for Initil Environmental Evaluaiion Report and Environmental Impact Ass _es     Report
Presentation for General Miring, Oil and Gas and Geothermal Resources Sectors (Pedoman
Tebkbuk kegiatan Bidang Peitambangan urnum, Minyak & Gas Burni and Suberdaya Panas
Bums.
r.    Circular Minister d Mines and Energy No. 02EI00Q/M.PE/1988, on Environmental Impact
Assessment Implementation Procedure for General Mining, Oil & Gas and Geothermal Resources
Sectors (Peaksanaan AMDAL Bidang Pertanbangan Unum, Bidang Pertambangan Minyak dan
Gas Bumi serla Sumberdaya Panas Bumi).
B&AAMO.WPAU 20Y1                               BATHE WEST ASAM.AS CA MIE DEVE.OPMENT
SOUTH  MANTAN



PT. ARUTMIN INDONESIA                                                             1 -8
1.3    ENVIRONMENTAL IMPACT KEY ISSUES
The coal resource development may affect impacts to the environment. The environmental impact key
issues relaled to the environmental impact based on general activilies of the West Asam-asam coal
reserve development required to be surveyed and assessed are as follows:
(1)    LAND ACQUISMON
Land acquisition may affect changes of land title and resource use of existing forestry, agriculture or other
land use for conservation and may create conflict of interest with development of other sectoral activities,
such as possible transmigration nucleus estate program, village communications, village related economic
activities attached to the required land.
(2)    LAND CLEARING AND TOPSOIL REMOVAL
Land dearing and topsoil removal will continuously conducted throughout the project life and may affect
impacts as follows:
-     Loss or displacement of rarelendangeredVprotected species of wikilife.
-     Loss Of tropical rainforest and biodiversity.
-     Potential for erosion and increase suspended sediment levels in fresh-water
-     Changes in resources use.
-     Dust and Smoke of burning remnants.
-     Social conflict with village community on econonic crop.
-     Thin Topsoil cover may create difficulties for revegetating the area for post mining land uses.
(3)    COAL MINING
Coal mine extraction continuous operation and its related activities including construction, overburden-
removal, handling, transportation, and stock piling may affect changes as follows:
-      Mining pit may create puddles and this wil affect c'anges of the teirestrial into aquatic ecosystem
and its related inpact.
-      Entry of dissolved substances (i.e. heavy metals) and acidity associated with run-off, tailings pond
water, dust, storage, product handling, etc.
-      FueVchemical spils.
-      Change of stream flow, drainage pattern and water balance.
-      Surface disturbance from mining activity, access roads, dnlling and site preparation.
B&WMOI WAR.W   ZnEB;                           BA-THE WEST ASAM-ASAM COAL MINE DEVELOPMENT
SOUTH KAUUNTAN



PT. ARUTMIN INDONESIA                                                             1  9
Erosion may affect increase sedimentation in the river.
Mine waste water may decrease water quality of the river (physical, chemical etc.).
Decreasing of spring waler/surface water discharge affected by vegetation felling In the catchmenl
area.
Changes of ground water aquifer and flow.
Dust from haulroad traffic, drilling, excavating, stock-piling and site clearing, construction.
-     Noise and emissions from diesel equipments.
(4)    POST MINING ACTIVITIES
C.lemical affec. of ash disposal in mining puddles to waler bodies
Thin layer of topsoil will continuously affect the area productivity
Employmenl release
-     Change of socio-economic activity
(5)    SOCIO-ECONOMIC AND CULTURAL
Despite the social conflict and socio-economical impact affected by changes of land use into mining
activity, the continuous mining operation and post mining activity changes may affect impacts as
follows:
Wilh influx of migr2tion of construction land mining labor, may create social shock, conflict.
Change of standard of living and income.
:Change of life style
Disturbance of cultural or historical remains fincluding graveyard, important places, etc.).
1.A   THE OBJECTIVES AND USE OF STUDY
(1)    THE OBJECTIVES AND AIMS
The objectives of the study is to assess and evaluate the significant environmental impact condition of the
West Asam-asam Coal Mine development to the environment in order to maximize the positive impacl and
minimize the negative impacts in enhancing the benefit of the sustainable development concepl and
preservation for environmental resiliency in coal resource developmenL The aims of study are as
follows:
EUW4.0JP.RQ. 2WYE MS                           BA-1HE WEST ASMSAM COAL MINE DEVEOPMENT
SOUTH KAUMANTAN



PT. ARUTMIN INDONESIA                                                          1 -10
To Identify mining planned activities which may r ave the potential to affec significant negative
Impads to the environment as well as to identify the positive impacts of the development.
To identify and evaluate the initial environmental setting of the ecosystem in proposed
development, especially those potentially affected by the planned adivily, covering biogeophysical
and socio-economic and cultural components.
Evalualion and prediction of impact which may occur systematically in terms of their magnilude
and importance.
Evaluation and recommendation of proposed alternative plan and effort for mitigative measures
to minimize significant negalive impacts and proposed alternative effort to enhance the positve
impacts to be used for decision making in delermining environmental management and monitoring
activty plan (EMaPIEMoP, RKLURPL).
(2)    THE USE OF STUDY
The use of the Envi;onmental Impact Assessment (EIPIANDA4 Study documents are as follows:
As legal framework for the govemment development supevisory function (sectoral and provincial
and the proponent in coordinating effort for enviroimental moniloring and miigative measures
throughout the project life.
- As systemat'^mt written reference document for the decision makers (government and proponent)
for choosing altematives, planning of resources utilization and environmental management of
Asam-asam Coal Mine activities.
An authoritative guidelines for the proponeni in planning and executing the mining activity
developnent and operation.
A systemalic written reference of baseline informafion on environmental setting of the proposed
area development.
BAWA.WPRUt. M2EOW                             BA-THE WEST ASAMUAJW  COAL UUNE DEVELOPMENT
SOUTH KAUMANTAN



PT. ARUTMIN INDONESIA                                                           1* 11
15    SCOPE OF WORK
(1)    SCOPING
Since the environment has no boundary, which may turn to the excessive and unnecessary assessmenl
of environmental effecis, the scoping process has to tbp conducted In order to lnmit the Impact assessment
to the boundary and depth which may sufficiently represent the impads caused by the planned activity
and potential to hlave signiicant adverse changes to the environment.
The scoping process will be conducted through idenffication d environmental impact potential area
focussing in the mining area activity and haul road. Based on this analysis the boundary of study can be
determined.
(2)    SCOPE BOUNDARY
The environmental impact assessment boundary of the PT. ARUTMIN INDONESIA's West Asam-asam
Coal Mine Development is determined through, several considerations (criteria boundary) covering
project/activity, ecological, administrative and lechnicalviability. The boundaries is ilustrated in Figure 1.4.
Project/Activity Boundary:
a.    Project Boundary
The activity/prqect boundary includes the mining area, 5 km southwestem most part of DU-322
contract area and proposed 5 kms haul road from mine site to PLTU Banjarmasin. The area
located between 3D55'6 - 3°55'12 SL and 11503'7 - 11505'33 WL. The boundary covers areas
as follows:
-    Mining and Service Area, approximately    750 Ha
-    Haul-road, (W. 200 m, L. 5 kms), approximately  100 Ha
b.    Ecological Boundary
The ecological boundary indudes terrestrial ecosw,stem area (vegetation) and aquatic ecosystem
(rivers, streams, wetlands) which may be affected.by the activity. The ecological boundary will
cover the following area, surrounding the activity area:
BAW.oWP.RO. WESWu                              EAITHE WEST ASAM-ASAM COAL MINE DEVELOPMENT
SOUrH KAUMANTAN



1o5 OT                               wS  T :5 DT
Figure 1.4                                                           ---
EIA STUDY BOUNDARY
*   gv~~~        KABUMPATU BAM'A/
1-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~j rAKFT rZ-.-' ASA/LAM
ORIENTATION  PP                                            -----
/   .;  ~~~-345'LS 
W~~~~~ I 
KAU   A/ 5    I                                                 P  Eg  CA. vATAA ,e   SUCBOIDR
)~~ ~~~ ~~~~~~~~~~~~ ... .S ........                       O
I-~~~~~~~~~~~~~~~~~~~-
s / < \'- * FK ---4A T A N   _   w
t t / ZA~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~L TO-_K <hL 
XECAMATAN    OIL   I                                                  A .
uA 45ATN  K!AMANII \A                              .%...
NOTES~~~~~~~~~~~~~N
JAV~AL  TO    -  - FKOE  !   -   uNTa!!O.CRY



PT. ARUTMIN INDONESIA                                                            1 13
Forest, grassland, bushes ecosystem
Agriculture land ecosystem
Watershed ecosystem and wetlands which covers the Asam-asam and Nalyah river
catchment area.
c.    Administrative Boundary
The administrative bouridary is based upon tIhe administrative government territory which includes
all villages which covers the coal mine development area. The boundary Is important to delineate
the socio-economic impacts and envifonmental impacts management. In this case the
administrative boundary covers the area of Kecamalan Jorong and Kintap, Kabupaten Tanah Laut,
Kalimantan Selatan Province. The area covers 3 v;.ages, Asam-asam village, Muara Asam-asam
and Pandansarl.
d.    Technical Boundary
The technical boundary is the combination of all the aforementioned boundary with consideration
of the linit for excessive studies and technological viable environmental mitigative and
management effort. This boundary delineated during the course of study.
(3)    PLANNED ACTIVITIES TO BE STUDIED
Identification of Planned activity which mostlikely have potential impacts to the environment. These will
indudes the fdlowing stages:
a.    Preparation stage
-    Land Acquisilion Activities
-    Permit from government agencies both local and Central Government eq. Forestry,
Mines. Environment, Provincial and Regency Level
b.    Construction Stage
-    Land Clearing, Grubbing, Burning of debris
-    Mobilization of Equipment
-    Recruitment of Labor and Construction Labor activity
-    Road Construction
-    Facility Construction
Ao1.WMAIPA. Z07E ON                            EI THE WEST ASAM ASAU COAL NNE DEVELOPMENT
SOUTH KAUIMANTAN



PT. ARUTMIN INDONESIA                                                            1- 14
C.    Mining continued operalion and coal haulage
-     Deforestation, Land Clearing and grubbing
*    Recruitment of Labor
*    Topsoil salvage, Overburden removal
*    Coal extraction, Backflill, Reclamation, Drainage control, Coal Piling and handling
-    Heavy Equipment, Personnel Transportation and Coal Transportation to Mine Moulh Power
Plant
-    Water supply for coal mining activly
-    Labor activity
d.    Post Mining activiies
-    Revegetation and recovery
Viability of aqua-farming of mine puddles
(4)    ENVIRONMENTAL COMPONENTS TO BE STUDIED
Identification of Environmental components and ecosystem which mostlikely to be affected by the planned
activity,
a.    Physical-Chemical Components
Climatology and Air Quality
*    Climate, temperature and humidity (min., max., and average), rainfall number of
rainy days and windrose.
a    Air quality at mining vicinity area
Physiography and Ecology
*    Topography, geomorphology, geology and seismic condilion
*    Physical and chemical properties of soil
a    Landscape and nature characteristics
Hydrology
*    Physical characteristic of river watershed, induding water quantity discharge (during
rainy season and dry season), maximun and minimum precipitation, flood level
*    Run-off condition
*    Erosion and sedimentation
*   Water resource utilization for domestic use around the prject sie
BAtWA.RYdPO.L 207E-8S                          EIA-THE WEST ASAMASAM COAL MINE DEVELOPMENT
S0UlH KALIMTAN



PT. ARUTMIN INDONESIA                                                           1*15
Waler Quality
(Physical, Chemical and Biological charaderistics)
*    Surface water (streams, creeks, river, ponds, wellands
*    Ground water condhion
Land-use
*    Inventory of existing land-uses
*    Land-use and regional planning guidelines by local government
*    Conflict wih other land-uses
b.    Biological Component
-    Flora
*    Inventory of the type vegetation ecosystem, diversity and dominancy
*    Proteclive or endangered plant species wih ecological or aesthetical values
*    Potential of commercial plant species
-    Fauna
*    Inventory wildlife species and diversity (amphibia, reptilia, aves and mammals,
especially that have econormical, ecological and aesthetical values)
*    Protective, endangered and endemic species inventory
*    Inventory of types and population of animals
-    Aquatic Biota
*    Inventory of population, diversity of plankton and benthos species
*    Inventory of fish species and dominancy, especially those which have commercial
value for local peoples
c.    Socio Economic and Socio Cultural
-    Socio Economic
*    Dnemography structure, induding popultion growth and densiy (distribution, age and
sex siructure, education)
*    Local subsistence socio-economic condition, employment and labor force
*    Pattem of land ownership, land value and utilizatiorVmanagement of common,
subsistence socio-economic resources
BAWAAIt.wPROL MMSM                             BA-THE WEST ASAM-MSA COAL MiNE DEVELOPMENT
SOUTH KALJMANTAN



PT. ARUTMIN INDONESIA                                                            1 16
Socia culural
*    Local culture, life-style and tradilion
*    Kinship, communily groupings, social life. formaVinformal leadership
*    Attitude and perception of the local people to words the coal mine plan
*    Archeology induding holy places and grave yard
*    Social problem or conflict, and other aspects related to security
Heakih
*    Natality and Mortality
*    Diseases paltern, sanitation condition-and heakth facilities
(5)    ANALYSIS
Analysis will include the followings:
a.    Prediction and description of impacts o' planned activities to the environment including
identification of flow of impacts.
b.    Evaluation of Environmental Significant Impads.
c.    Evaluation of Environmental Impact Measures and Management Plan, including recommendation
of planned activity improvement.
(6)    REPORTING
a. Preparation of ANDAL (Analisis Dampak Lingkungan) or Environmental Impact Analysis (EIA)
Report which includes Environmental Management and Moniloring Plan (EMaplEMoP), Rencana
Pengelolaan dan Pemantauan Lingkungan .(RKLURPL)
b.     Presentation and coordination with ANDAL Commission Department of Mines and energy and
subsequent required approval.
BAWAOI.WPAPRW. 207EBS                          EIAATHE WEST ASAUMASAM COAL MNE OEVELOPMENT
SOUTH KMLIMANTAN



PT. ARUTMIN INDONESIA                                                                 1 -17
1.6    METHODOLOGY
(1)    SAMPLING LOCATION
Based on tho preliminary data provided by client the sampling location including air, water, hydrological
componenis are illustrated in Fgsure 1.5.
(2)    METHOD FOR PRIMARY DATA COLLECTION
Primary data collection is conducted through field survey. Data cdllected related to environmental
parameters predicted to have adverse changes affected by activities, including air quality and nose, waler
quality and hydrology, flora and fauna, socio-economic and socio-cultural resources.
a.     Air Quality and Noise Level
Air qualiy (gaseous, parliculate) measured with reference to APHA Standard (1977). Parameters
to be measured covers NO., SO2, H2S, CO, Pb, Hydrocarbon (C1Hy). dust and noise.
Table 1.1 Parameter and Methods for Air Quality Measurment and Analysis
No.      Parametems          Ut                    Mehod and Equpment
1.   CO                    11IgM3l     Gas sampler, Speclrophotneiric
2.   HzS                   igAnm3     Gas sampler, Spectropholometric
3.   NO,                    pghn3      Gas sampler, Spectropholametric
4.   sO                    pghn        Gas sampler, Spectropholometic
S    H,C, (Hydrocarbon)    Pm          Dust sampler, Specrophtomrreter
6.   Pb                    Pgm        Gas sampler, Gas Chromalopraph
7.   Dust                  "pg         Dust sampler, Gavimetiy
8.   Noise                 dB (A}      Digia Srd Lewemeter
Sample location is determined based on:
1.   Impact potential area and assumed one (1) fresh reference point
2.    Meteorological data for wind direction and its tail wind, pattern references.
3.    Physical and topographical condirion, to oversee the material characteristics related to
elevation.
4.    Mathematical approach for sampling purposes.
5.    Spatial land-use aspects, to have basis for existing and anticipate future land-use
development requirements in the area.
BAWMAOM.WPAI. x07E MM6                            ESA- THE WEST ASAM-ASM COAL MINE DEVLOPMENT
SOUTH KAUMANTAN



Figure 1.5                                                                       A18
SAMPLING MAP FOR
WATER AND AIR QUALITY
A Ds. Salaman
KECAMATAN KINTAP-
. Jlob: \ ,.^<..- ... _ s s jz S. Hautan
.%    ,!.sDs.Pananangan2
Ds. Dampithulu                                      *_i..- 
-                                                                    %
, . > %}@L /_1 /, ~~~~~~~~~~~~~~~~~~~~~~..................... ,
--* '                                                              1i X*  ^    {g!, .' -  *  I- -
KECAMATAN JORONG                                                           A A-
3.bc  ;.
Ds. Batafang   .,
*                                                         A                Ds. Mua
/ ' x\' > /Ds.Asamasam 5 (~~~~ sungairakin
-._.              v.
Ds. Jor ng                       TRANSMIGRASI I             *                   *
/ X.;.~0%(Jorong Asarnasam)  
TRANSMIGRASI  s.     :JJS.MuaraAsam-asam
TRANSMIGRAI1  3                              --...
Ds. Sewaran an . 
1>    1~ Ds. Saipampan       /                          N1\s
I  0                                ~~~~~~~~~~~~~~Notes:
I    F  '  >  WATER QUAULY
-~     MzIR QLUALTY
0  1       3          6 Km                 JAVA SEA



PT. ARUTMIN INDONESIA                                                                      1 * 19
Nine (9) sample locations Is chosen based on the above aiteria (Figure 1.S)
-     8 location in the activity area and Ns surrouncing with 1 (one) sample taken as control
(fresh) point to the north of projecl area, (Sample No. 6).
-     1 location (sample No. 9) is taken in Muara Satul, coal stockpile and coal shipment
terminal, as an analogy for proposed project stockpile and coal handling activiy.
-     To oversee the development of air quality setting, 3 phree) sample location (Sample Point
no. 2, 4 and 8) is taken in similar localion with ANDAL PLTU Banjarmasin sample
locations, conducted by PLN previously.
Air quality sampling is conducted by surface system method, since the proposed activity
characteristics of air disturbance is a limited centralized surface activity.
Table 1.2   Characteristics of Sampling Localions.
No.  Location                           Remarks
1.   Planred PLTU Stockpile Sile       Villages settlement near Sawmil
2.   Kapuk Forest Area                 Planned area fbr mbe long hal road to PLTU
3.   Buang-buang Forest Area           Proirvciai Highway. influence of exisig regional Iransportation
4.   Kintap Forest                     Westem side ol proect area
5.   Mid Area of Mine Site             Center o' ..lng aciMty (Wood fores)
6.   Gardu Forest (Wood foresQ         Up-north side of project area
7.   Settlement. Side road to Satui by Jorong  Southem side of proct area
8.   Transmigralion Settlement         Planred setilement development
9.   Coal Slacikpile at Muara Satul    Stockpile and coal handling activity (as an anabgy)
Further, the result of eir quality analysis will be compared to the standard regulation on air quality,
Decree of the State Minister for Population and Environment, No. KEP-02JMEN.KLH/1/ 988, on
Guidelines for Environmental Quality Standard Determination in order to determined the existing
air qualily condition.
b.     Hydrology
-     Surface water discharge
Using the 'Velocity Area Method', Sungai Asam-asam, Sungai Naiyah and Sungai Kintap,
discharge volume can be measured based upon iRs flow area.
BAWMAI.wP.RO. 2MM BNS                               El THE WEST ASAMASM COAL MINE DEVELOPMENT
SOUTH KAIJMANTAN



PT. ARUTMIN INDONESIA                                                                  1 - 20
a = A.V
Where,
0    =    Vc'"me (m3lsec)
A.  =    Area (m)
V    =    River velociy (rn/sec), measured using Floating Method
Map interpretation, calculation, and forec='ing for delineating of the river basin area for
measuring waler discharge and suspension, rainfall data is used lo estimate, minimum and
maximum waler discharge and total run-off. Water availabilly and its utilization inforrnalion
is Talun through interview and other secondary data
Sediment Analysis
Using 'Depth Integrated Sampler' (type USDH 48 and 59) is analyzed to determine
sedimentation level. The water sample, then, is filtered to obtain sediment partides. The
sediment is weighed using analytical scale. The water sample will be taken from Sungai
Asam-asam, Sungai Naiyah. Both samples, sediment and water, will be taken from the
same locations.
Table 1.3 Parameters and Method for Hydrological Analysis
No.               Parameters                     Method and Equipment
1.    Discharge (river, streams)       Velocity Area Method, Curenimeter
2.    Run-off                           Map irterpretalon, cacadion and korecasting
of rainfall
3.    Sedhmentaion                       eplh Integrated Sampler Method
4.    Water availability and utilization  Interview and seconday data
5.    Erosion lvel                      LIiversal Soil Loss Equation and Water
Balnce
C.     Ersoion
Erosion calcultaed estimate is conducted wihin certain limit utilizing Universal Soil Loss Equation
(Wischmeier and Smith, improved by William, 1 9B7) as follows:
A = R x K x Ls x C x P
SAIwNAo.PaR aEs                                   BtA THE WEST AM-ASM COAL MINE DEVELOPMENT
SOUrH KALMMITAN



PT. ARUTMIN INDONESIA                                                            1 - 21
Where:
A     =    Soil Loss (Ionne/Ha/year)
R    =    Erodibility index of rainwater
K    =   Erodibility index of sdl
Ls   =    Length and Slope of lerrain
C    =   Vegelation ground cover managemeni
P    =   Soil conservation index
Water Ballance to estimate surface water flow is calcula0ed using evapotranspiration interpretation
(rhornthwaite, 1962).
(EVPT)i = C.l
Where:
EVPT=    Evapotranspiration
i    =    C x T, illumination index
C    =    Flow coefficient
t    =   Average temperature
d.    Water Quality
Parameters to be measured for water quality condition analysis includes physical, chemical, and
biological parameters. Samples are taken systematically in 9 (nine) locations from upstream to
downstream of the proposed mine site, while at the same time field measurernent is conduded
for temperature, DO, conductivity and transparency.
Location of sampling and measurement of water, plankton and benthos is shown in Figure 1.5,
as follows:
-    Naiyah River, 2 locations (Station 1 and 2)
-    Lahung River, 2 locations (Station 3 and 4)
-    Asam-asam River, 4 locations (Station 5, 6, 7 and 8) at the up-stream and down-stream
of mine site location.
-    Sample (Station 9) is taken in Satui an active mine, at mine pit settling pond to have an
analogy for water quality of settling pond for the proposed mine.
-    Well water samples are taken from village settlement at Asam-asam road crossing (3
samples).
ERWAW WPx  2aR E MM OBA. THE WEST ASAI-ASM COAL MINE DEVLOPMENT
SOUTH KALJMANTAN



PT. ARUTMIN INDONESIA                                                                  1 - 22
At every river station, riverwaler and mud samples are grabbed in three points 5 cm from, the two
side of the river banks and In the middle of the stream, except for at the estuary Is taken one
sample only. Each sample are taken respectively 2 lilire, 1 litre and 1 liktre for non-metal, metal
and pesticides laboratory test. For metal and pesticides analysis samples are respectively
preserved with nitrate acid and suffide add 2 ml for each samples. As for plankton analysis, 30
litire of water is taken prior to be filtered by plankton net no. 25, then concentrated into 25 ml and
preserved with 8 drops of formalin 4 %. Microscopic test Is conducted In the laboralory to eslimate
diversity and population (Ward and Whipple, 1965). Benihos are taken using Eijckman Grab.
Muds is filtered through sieve whh water flowing Waler samples for coli-form and coli-faecal is
taken 200 ml wilh sterile Erlenmayer preserved in ice-box. Microscopic test will be conducted for
both plankton and benthic to determine diversity and population.
Method for waler quality analysis will be based on the following reference standards:
-     American Public Health Association (APHA), 1980
-     ,SNI - Bidang Pekerjaan Umum mengenai Kualilas Air dan Biologi, 1991.
Parameter, equipment and method for measurements is listed in Table 1.4. Status of water quality
ambient of each station are determined by using STORET and US-EPA scoring method (Canter.
1977). The method for determining the status slandard ambient for water is presented in Table
1.5. A: Excellent, score = 4), B: Good, score -1 to -10, C : Average, score -11 to -30 D : Poor,
score > -31
Table 1.4   Parameter for Physical, Chemical and Biological Characteristics, Instrument and
Method.
No.   Parameter                  ULit               Mellods/Instruments
Phisycal:
1.   Temperature  .               ec               Thermometer
2.   TDS (Total Dissolved Solid)  mglL  ,.         Gravimetry
3.   TSS (Total Suspended Solid)  mrglL            Greinmery
4.   Conductivity                 wnhos/cm         Potentioneiry
5.   Color                        Unit P/Co        Spectophotomeby
6.   Transparency                 On               Secchidlsc
7.   Turbidity                    mg SiOZil        TtfbidiSymeler
Chemical:
1.   pH                                            Potentiometry
2.   Disolved Oxygen (DO)         mgtl             Potenrioetry
3.   NO,N                         mgtl             Spectohotomery
4.   NO,-N                        mgxi             Spectophotorneiry
5.   PO,                          mg/I             SpecLophotometry
a    N-total                      ma)              rqeldakl
kMwMo.WP.Ra, 207EX WE                            EBA THE WEST ASAM-SM COAL MINE DEVELOPMENT
SOUTH KAUMANTAN



PT. ARUTMIN INDONESIA                                                                              1 -23
No.   Parameter                        Unil                Methodalnitrumentel
7.    P-lotal                         mgI                 iqeldaho
8.    Hardness                        mg1i                Acldlalaellmtiy
9.    a                               mg/I                 Argenmebty
10.    HS,                              mg/I               Acidialcallmelry
11.    SO.                             mg/I                Tubidmeqy
12.    COD                             mga)                ltrlmetry
13.    ROD                             mga                 Winkler
14.    Hg                              ma)                 AAS/Fbarneles
15.   Al                               mgI                 MS
16.    As                              mg/I                Spectropotomebry
17.    Ba                              mgI                 AAS
18.    Fe                              ng/I                MS
19.    F                               mg/i                Spectrophotomelry
20.    Cd                              mg/I                MS
21.    CrC6                            mg/I                MS
22.    Mn                              mg/I                MS
23.    Na                              mg/I                MS
24.   CO                               mg/i                MS
25.    Ag                              magi                AAS
26.    Se                              mg/I                S     tomatry
27.    Zn                              mng/I               AAS
28.    CN'                             mgtI                Spectrophotometry
29.    Cu                              mgli                MS
30.    Pb                              mg/i                MS
31.    Boron                           mg/i                Spectrophokomety
32.    Oil + Fat                       mgI                 Gravymetry
33.    Detergent                                           Spectophoometry
34.    Phenol                          mgr                 Spectophotmebty
35.    Aldine                         mg/I                Chromatography
36.    Dieldrine                       mg/i                Chromalography
37.    Chlordane                       mg/                 Chromatography
38.    DDT                             mg/I                Chromatograpthy
39.    Undane                          mg/I                Chromatography
40.    BHC                             mg/I                Chromatography
41.    Endrine                         mgI                 Chromtalography
42.    PCP                             mgOI                Chromatography
43.    PCB                             mg/I                Chromalography
44.    Toxaphene                       mg/I                Chromatography
45.    SAR                                                 Calkulated
46.    RSC                                                 Calculated
47.    Ni                              mgI                 AAS
48.    NH3-N                           mg/I                Spectophotometty
Biology:
1     E. Coli Ractei                  MPN/ 100 ml         Multple Tube Method
2.    Colifoim Bacteri                 MPN/100 ml         Multiple Tube method
3.    ID Plankbn                                          Simpson
4.    ID Benthos                                          Shannon - Wiener
B&WAA1 PACIL 2w8 5                                       BA- THE WF- ASAMM COAL MINE DEVELOPMENT
sounI KAUMANTAN



PT. ARUTMIN INDONESIA                                                               1 -24
Table 1.5 Status of Water Quality Criteria Ambient
Paramelers
Value
Physical       Chemical     Bactefiological
Maximum                    -1             -2              .3
Minimum                   -1              -2              -3
Average                    -3            -6               -9
Source     Canter (1977)
The negative score is rated if the maximum, minimum, or average grade is higher than the
standard ambient. In the score = 0. i means that the grade is equal or less than the standard
ambient. Scoring system is defined differently foh each parameter. For the chemical parameter the
score is 2 times, and bacteriology is 3 times of physical parameter score.
The above score is obtained by comparing the maximum and minimum samples analysis result
to standard ambient and criteria for water quality.
The following criteria for standard ambient:
*     3Odum's Criteria (1975) for Plankton
*     Lee's Criteria (1 978) for Benthic
*    .Appendix 1, 11, III of Decree of the State Minister for Population and Environment No. Kep.
02/MEN.KHI/1 989 and Regulation PP. No.2011990, on Water Pollution Control for overall
analysis of parameters.
The value for biological water quality analysis can be determined by index diversity. Index diversity
Simpson is used for plankton, while Index diversity Shannon & Wiener is used for benthos (Lee
at al. 1978)plankton.
-     Index Diversity Simpson
I-1-D
D-E ( ni z2
N
Where:
I     =    Index Diversity Simpson
ni   =    Number of individual from each species
N    =    Total number of individual species
BAWAA1. WPA0. 207E eS                           EA- THE WEST ASAM-ASM COAL MINE DEVELOPMENT
SOUTH KAIJUANTAN



PT. ARUMIA!N INDONESIA                                                               1- 25
Index Diversifty Shannon & Wiener (1949)
H'  =    Index Diversity Shannon & Wiener
ni   =    Number of individual for each species
N    =    Total number of Individual species
The resull of index diversity calculation can be utilized to predict the water qualiy. Lee (1978) has
dassified the degree of pollution based on Shannon & Wiener Index, using a relationship between
micro-invertebrate with physical and chemical factor of water properties. Table 1.6 describes Ihe
crkeria for pollution category based upon diversity index for benihos. If the diversiky index is less
than 1.0 then it is a heavy pollution : between 1.0 - 1.5, it is a mediumn pollution; between 1.6 -
2.0, it is a low pollution ; and if it is larger than 2.0 it is un-polluted water.
Table 1.6 Classification on Degree of Pollution
Category     Shannon & Wiener      DO             BOD             NHIHN
index            mgfl           mg/             Mgl#
Un-polluted            a 2             3.6.5           < 3             ( 0.5
Low Polluton         1.6 - 2.0        4.5 - 6.5       3 - 4.9        0.5 - 0.9
Medium Pollution     1.0 -1.5        20 - 4.5         5-15           1.0 - 3.0
Heavy Pollulion                          2            >15                 3
Source:    Lee. e al (1978)
Despite Index Diversity, the Similarity Coefficient by Barry - Curtis (1975), can also be utilized for
comparing communities from two different stations. If two communities have similarities, then the
similarity coefficient is 100 %.
Similarity Coefficient
s_ 2 (w) xlOO%
a+b
EIBWAO1.WP.Ra 21VE.131                           El THE WEST ASAM-ASM COAL NINE DEVELOPMENT
SOUTH KAULMWJTAN



PT. ARUTMIN INDONESIA                                                             1 *26
Where
S     .    Similarity Coeffiient
a    .    Total significant grade in community A
b    .    Total significant grade species
W     .    Total significant grade of species In both community A and B, with [he least or
similar total significant grade
NP-C. F
Where
C    =    Average number individual of a species In all sanples
F    a    The frequency of 4 species in sample taken from the community
d.    Flora & Fauna
Flora
Survey was addressed to identify structural and composition of plant in the proposed coal
mining and surrounding area. Combination of belt method and line plol - is used and
quadrate 20 x 20 rn2 is used for 'tree' class, (10 x 1I0 mr for 'poWe', (5 x 5) mr for 'beita'
and (2 x 2) rmZ for 'seedling', is used to coliet data for tree species sampling and (1 x 1)
m2 for ground cover and bushes. For garda;s plant, the garden area is used as sampling
plot. The data collected wil be analyzed using formulae as follows:
*    SDR Value (Summed Dominant Ratio)
5DR- Fr+Dr
2
*    Important Value (V)
IV = Dr + DR + Fr
Number of IndMvidu
Density =            Plot Area
Density of One Species
Dr =                                  x10
Density of All Spedes     x 100%
EAW AO1.WPAUL 207E BBS                         Ea- THE WEST ASAMAM COAL MINE DEVELOPMENT
SOUTH KAIJMANTAN



PT. ARUTMIN INDONESIA                                                           1 *27
Area Plot
Dominancy             S                    x 100%
Species Areak
Dominancy of One Species
DR =                                    100%
Dominancy of Al Species    x
Number of Plot One Species Found
Frequency =       Numbers of All Species
Frequency of One Species
Fr =       Frequen.y A1 Species      x 100%
Where:
SOR =      Dominant value of a species
Fr   =     Frequency relative
Dr   =     Density relalive
DR   =     Dominancy relative
i    Diversity Index (Shannon & Wiener, 1949), see formulae is Water Qualily Biological
Components, PP
•   Similarity Index (Sorenson. 1966), see formulae is Water Quality Biological
Components, PP:
*    Interview
The purpose of Ihe interview is to acquire public opinion on the use of plants such
as for fuelwood, aesthetic, building materials, and which have high economical
values.
Fauna
In comparison to the flora locations for investigation, the localions for fauna field
observation are similar with a slight if dilferent approach in observing aves. The purpose
of this observation is to make an inventory list for habitat types, includng species of
mammalia, aves, reptilia and amphibia.
EWA.WMO.WP.R Z22WE08S                         ElA. THE WEST ASAM-ASAM COAL MINE DEVELOPMENT
SOUTH KAJMANTAN



PT. ARUTMIN INDONESIA                                                          1 - 28
Direct observation can only be conducted during the day time. The species can be listed
either they are directly discovered or through foot prints, sound, faeces.
Point Inrdex of Abundance is used for estimating the number of population of aves.
Interview is also conducted to back-up data from field observation.
The other purpose of the interview is to get public opinion on wildlife which have high
economical values (hunted, trade).
Data is analysed in order lo found out the existing. Species and their home range
especially for wild Ife and to compare wildlFe species in each areas, the analysis will
include:
*    Diversity index and similarly index
The calculation for both parameters is similar to the calculation performed in flora.
*   Abundance Index
D-i- nvx10(j%
N
Where:
Di   =     Abundance Index i
Ni   =     Number of individual i
V'   =     Total number of all individuals of all species
*   Aquiabilily Index
e-  H
logs
Where:
e    =     Equitabiliy Index
Hi   =     Diversity Index (Shannon)
S    =     Number of Species
BkWAA.wP.RFL. 2WES                            LiA. THE WEST ASAM-AAM COAL MINE DEVELOPMENT
SOUTH KAUMANTAN



PT. ARUTMIN INDONESIA                                                                1 *29
Table 1.7   Parameters and Method for Flora and Fauna Analysis
No.                Paramelers                        Method and Equipment
1.    Flora
* Grass land                       Transect Une method, Poinl.centered quarter
* Bushes                           method & Urn Intercept method
* Secondary bfrest                 InteMew and secondary data
* Mix hrrrnhg & garden              Rollmeter, Compass. Binoclar
2.    Fauna
- Widldle                          Direct census & terview
* Domestc arnmal                   Secondary data
Compass, Biouar, Insect net
Aquatic Biota
Planklon and benthos investigation is already included in paragraph Water Qualky
methodology, since k is related closely to the pollution condition of the river water.
Necton (fish, etc) data is collected through intervew and direct observation in fisherman
village and other potential location. Secondary data collection is also compiled from
relevant local government agency (Dinas Perikanan Kabupaten Tanah Laut).
e.    Socio-Economical and Culture
Intensive investigation is conducted in the area of project location especially Asam-asam and
Muara Asam-asam village which is consedered to be directly influenced by the proct activity
disturbance. General invesligation for regional economic is anticipaPa-d to be limited into
Kecamatan/Regency Level based on experienced it Muara Asam Satui Coal Mining Terminal an
a since the area is relitively wides
Two ways method of purposive sampling interview has been conducted to both village peoples
and the second method is sistematically observed and interview of formal authority and at
Kecamatan and Village level with some additional secondary datas.
This approach is taken based on the condition of the area as blows:
-     The local villagers relatively less adaptable for formal interviews and questionaired
-     Socio-economic characteristics of the area relalivelly uniforrn/similar.
-     Although the investigation is using 'case study' aproach, however interviews is condusted
as much as possible respondent with grouping interviews.
BAWAO1PAWL WlE Os                                EIA- THE WEST ASAMASAM COAL LINE DEVELOPMENT
So' rlH KALUMMTAN



PT. ARUTMIN INDONESIA                                                            1 - 30
Samples are taken are 20 former family in Asam-asam village and 15 family in Muara Asam-asam
village.
Demography and Socio-Economic Structure
*    Identificalion of demographical structure: population density, growth manpower
resource quality (education), and workforce
*    Socio-economic structure including subsistence economic pattern, and subsistence
economic resources, main occupation.
*    Land resources ownership, distribution, and ownership of local subsistence
economic resources/assets, dynamic of local economy especially exploitation of
common resources and property.
*    Traditional employment opportunity, cooperative pattem, division of labour based on
gender.
Socio-Cultural
*    Identification of local tradition religion and customs.
*    Kinship, social relations between groups and village community.
*  Leadership pattern-formalfinformal and organized community based development.
e    Preception and adaptation of local community toward proposed mining and other
new activities outside their subsys.i,ce socio-economic activities.
a    Other aspect related to behaviour reiated community health and its development
condition.
- Potential social conflict (Kamlibmas) relevant to the introduction of new activities.
(3)    SECONDARY DATA COLLECTION
Secondary data (Table 1.8) will be collected from the fdlowing sources:
a.    Govemment and relevant agency who may be involved in the coal mining operation in the
Regency Tanah Laut and Kalimantan Selatan Province. The government institutions include:
-    Bappeda Propinsi DT I - Kalimantan Selatan
-    Biro Lingkungan Hidup - Kalimantan Selatan
-    Bappeda Tingkat 11 Tanah Laut
-    Kanwil Kehutanan - Propinsi Kalimantan Selatan
-    Kanwil Departemen Pertambangan dan Energi - Kalimantan Selatan
-    Dinas Kesehatan - Kabupaten DT 11 Tanah Laut
SWA4i.WP.R.0Z 20WE SW                          IA- THE WEST ASAMASAM COAL IMNE DEVELOPMENT
.1".                    SOUrH KAUMANTAN



PT. ARUTMIN INDONESIA                                                                     1 * 31
-     Kantor BPN - Kabupaten FT II Tanah Laut
*     Kantor Stalislik Kabupaten DT II Tanah Laut
*     Dinas Pekerjaan Umum Pengairan Kabupaten DT II Tanah Laut
-     Dinas Pertanian Tanaman Pangan Kabupaten OT II Tanah Laut
-     Dinas Perikanan Kabupaten DT II Tanah Laut
*     Kanlor Statistik Kabupaten Tanah Laut
-     Kecamatan Jorong
-     Desa Asam-asam dan Desa Muara Asam-asam
Table 1.8   paramelers and Methods for Social-Economical and Culture Component Analysis
No.                    Parameters                          Methods and Equipment
1.   Demography                                    Pdrmary data (interview)
- Struclure (househole person)                Seconduy dala
- Populalion dersity, distribution
- Sex rato, education, health etc.
- Growth and mobility
2.   Socio-economic condi0ion
- Income, occupation
P Public healh
S Social facilies and infractricture
3.   Socio-cultural condilions
- Interacbon & confict
- Values, perception, lfestyk, adaptation
- Attilude to Environmern
- Hislorical mmains
4.   Commuication
- Trarsport and Communication means
- Traffic
5.   InslHtutional Aspect
- Commurnt Informal institubn
- Govemment inslitution
b.     Studies and research on similar proect activity withi the vicinity of proposed coal mining
locations. There are several studies have been done in the area:
-     Initial Environmental Information Report (PIL), Coal Exploration Projection, Block VI, Asam-
asam Coal Basin, Regency of Kotabaru and Tanah Laut, Soulh Kaimantan, PT. AURTMIN
INDONESIA. 1988.
-     Environmental Impact Assessment Report, Kintap, Satui and Karuh Coal Mine Project
Block VI, Regency of Kotabaru and Tanah Laut, South Kalimantan Final Report, PT.
ARUTMIN INDONESIA.
SAWWROt.Al 2DE -                                    EIA- THE WEST ASAM4L5AM COAL MINE DEVELOPMENT
SOUTH KALIMANTAN



PT. ARUTMIN INDONESIA                                                                           1 *32
Environmental Management and Monitoring Plan Report Satui and Karuh Coal Mine
Project Block VI, Regency of Kotabaru and Tanah Laut, South Kailmantan Final Report,
PT. ARUTMIN INDONESIA.
Environmental Impact Assessment Report Banjarmaasin Mine Mouth Power Plant South
Kalimantan, Proyek Induk Sarana Fisik dan Penuniang PLN, Final Report, 1993.
Environmental Management and Monitoring Plan Report, Banjarmasin Mine Mouth Power
Plant, South Kalimantan, Proyek Induk Sarana Fisik dan Penunjang -PLN, Final Reporl,
1993.
Environmental Management and Monitoring Plan Transportation Route of Banjarmasin,
Mine Mouth Power Plant Project, Proyek Induk Sarana Fisik dan Penunjang - PLN. 1993.
Table 1.9   Types and Sources of Secondary Data
No.     Erwionmenlal              Type of Data                        Source of
Component
I.   C2imale             Clirnate, lemperamure, humidily.  - Badan MaotoroMgi dan Geofisika
rainfall, solar radialion windrose  (BMG), Slasiun Meteorologi
Jorong,Tarah Laut, Kalimaran
Selatan.
2.   Physiography and    - Topography dan Geomorphology  - Direkioral Geooogi Tate Ungkungan
Geology             (inctuing maps)                 (DGTL) - Bandurg
3.   Land-use           - Land-use, soal dracestics      - Bappeda Tk. II dan Kantor BPN Kab.
Tanah taut
- Depeaiemn Kaihutonan
4.   Hydrology          - Physical Characteristics of river,  - Direkia GTL, Pusilbang Air, Dep.
calchment area, ground water.    PU. Kanwii Pertbian Prop. Kalmardan
water usage.                     Selatan dan sWc Pro-FS Tarnbarng
Batubara Asam-samn by Anrtm
5   Biology            - Neklon (isheries)              - Dinas Petihknan Kabupatmn DT. 11
Tanah tauuL
6    Social Econorics    - Economic rowth, inlrastnicture,  - Bappeda Kab. Tk. II Tanah Laut,
and Soo cultural    labor orce and employmert        Kantor Statislik. Monografi Kecamatan
- Demography population density,  Jorong and Buku Potensi Desa.
distribution, population growlh, age,
sex structure.
- Social struure, educational.
Kamtibnas, and religion.
- Socia - cltural facility and
archeoogy, Health facilities.
Diseases panem.
ERAMdIPACP.RI 2wE8s                                    BA, THE WEST ASAMASAM COAL MINE DEVELOPMENT
SOUTH KAWMANTAN



PT. ARUTMIN INDONESIA                                                           1 *33
c.    Other relaled bibliographies on coal mining environmental Impact report and research.
(see List of Bibliography)
(4)    METHODS FOR IMPACT IDENTIFICATION
Environmental Impact idenlification will be conducted wikh the following methods:
-     Matrix, to idenlify interaction between prolect acliviltes and environmental cornponents, and to
Idenlify the potential impact within each Interaction, put Into modlfied Leopold matrix.
-     Flowchart Is utilized to identify the process and mechanism of environmental changes and
impacts.
(5)    METHOD IMPACTS PREDICTION
Prediction of environmental impact will be conducted using mathematical model, analogic and intuition
(expert judgement). Mathematical model especially will be used for prediction of Pollutant spread in air and
water bodies. Analogic and/or judgement approach is especially used to predict impact on flora & fauna,
socio-economic and socio-cultural.
(6)    METHODS FOR IMPACT EVALUATION
Significant impact evalualion regulated on the Decree of the State Ministry for Population Environment,
No. KEP. 49(MENKLH/611987 concerning the Guidelines for Important Impact Identificaton and the new
PP. No. 51, 1993. The following method will be used further to determine importanUsignificant impacts:
Comparison with the vald threshold limit value of environmental crileria as stipulated by SK State
Ministry for Population and EnvironmenVKLH Decree No. Kep-D2JMENKLHI1111988 on
Environmental Quality Standard and by other relevant regulations from other ministry and other
countries.
Evaluation on the basis of expert judgement.
(7)    ENVIRONMENTAL MANAGEMENT PLAN (RKL) AND ENVIRONMENTAL MONITORING (RPL)
a.    Environmental Management Plan (RKL)
The purpose of preparing the RKL document for PT. ARUTMIN INDONESIA is to established a
guidelines for environmental management, to mitigate and minimize negative significant impacts.
BEWMoA.WfP.t 2017E.8s                         EUA THE WEST ASAMASA COAL MINE DEVEOPMENT
SOUTH KA4JMANTAN



PT. ARUTMIN INDONESIA                                                           1* 34
In preparing the Environmental Management Plan (RKL) every mitigative measures proposed shall
fulfill 3 criterias to ensure satisfactory implementation, these approach indudes the following
aspects:
*    Technological Approach
The purpose of [his approach is to search for technology which can be efficiency and
effeclively lo minimize negative impact and that can be operated.
*    Economical Approach
The purpose of this approach is to review and select a methodology and environmental
management central measure from [he economic point of view.
*    Institutional Approach
In [his approach, il is necessary to define an instXutional and coordination network so thal
the management and monitoring on the environment can be implemented effectively.
The Scope of Environmental Management Plan (RKL) indudes:
a    Environmental Management
Description of environmental management based upon the analysis and impacts.
*    Management Implementation
Description of related institutions responsible for the implementation of ernvironmental
management mitigative measures, induding source of budget and relevant sectoral
program.
*    Monitoring and Management
Description of instilution and organizational planned development responsible for
monitoring the environmental management and mitigative measures program.
EISAWO.wP.R.C! 207E UB                        BA- THE WEST ASAMAS  COAL MINE DEVLOPMENT
SOUTH KAIJMANTAN



PT. ARUTMIN INDONESIA                                                           1 - 35
b.    Environmental Montoring Plan
Tha scope o1 the Environmental Monitoring Plan indudes the following aspects:
Stalemenl of impacis which is necessary to be monitored
Stalement environmental aspects in Ihe monitoring programme
Stalement en;, cnmental impad standard
Stalement the loalion and period of monitoring
Formulation of the impiementation program and identify responsible institution for
monitoring programme
Evaluation of the institutions responsible .-r monitoring the programme and proposed
development
-' r,
e0VM.WPAU.  amE BB                            EL4 THE WEST ASW M COAL MINE DEVELOPMENT
SOUTH KAMANTAN



CHAPTER 2
PROJECT RATIONALE
THE ENVIRONMENTAL IMPACT ASSESSMENT OF
THE WEST ASAM-ASAM COAL MINING PROJECT
IN BLOCK 6, SOUTH KAUMANTAN - INDONESIA
PT. ARUTMIN INDONESIA



PT. ARUTMIN INDONESIA                                                               2- 1
CHAPTER 2
PROJECT RATIONALE
2.1    THE PROPONENT
Project Proponent             :   PT. ARUTMIN INDONESIA
An Indonesia Umked Liability Company
Mining contractor for PT. (Persero) Tambang Batubara Bukit
Asam
Address                       :   -    Head Office:
Mid Plaza Building 11-17
JI. Jendral Sudirman Kav. 10-11
Jakarta 10220 - Indonesia
Representalive Office:
JI Arjuna No. 5 Banjarmasin
South Kalimantan - Indonesia
Project Manager               :   Paul H. Schipke
General Manager
2.2    THE CONSULTANT
The consultant responsible for the Environmental Impact Assessment (ANDAL Studies). The
Environmental Management and Monitoring Plan (RKL and RPL):
Consultant                    :   PT. BITA BINA SEMESTA
An Indonesia Limited Liability Company
Address                            JI. Cimandiri 26
Bandung 40115- Indonesia
Tel. 022-436290, 4202045, Fax. 022-702749
E8AWA4W.WP .R 207E fBS                           EIATHE WEST ASAM-ASA COAL MINE DEVELOPMENT
sotuT KAUMANTAN



PT. ARUTMIN INDONESIA                                                            2 2
Seliabudi Office Building I, Suite Cl -2-3
JI. HR. Rasuna Said Kay. 62
Jakarta 12920 - Indonesia
Tel. 021-5202358 (Hunt.), Fax. 021-5202359
Project Director                 Ir. India B. SyamwlI, MSc. BEM
Director Operation Planning and Environmental
Environmental Impact Assessment Study Team Member:
Project Director                 II. Indra B. Syamwil, MSc. BEM
Team Leader                      Dr. Erri Noviar Megantara
Coal Mine Expert             :   Dr. Ir. Rudi Sayoga Gautama, MSc.
Geology/Hydrology                Ir. Djoko Susanto
Air Quality Sp.                  Ir. Chunaeni Latief, M. Eng. Sc
Water Quality Sp.1           :   Drs. Hamonangan Siregar, MSc.
Water Quality Sp.2           :   Drs. Cecep M. Roem
Terrestrial Ecologist I          Yedi Arilin, BSc.
Terrestrial Ecologist 2          Drs. Ano Sumamo
Socio-economist & Culture 1  :   Drs. Hisyam Achmad, MA
Socio-economist & Culture 2      Drs. Muchsin B. Mahendra
Land Use aspect                  Ir. Agusl Siswanto
Environmental Engineer           Ir. Trigeany Linggoalmodio
23    THE OBJECTIVES AND BENEFIT OF THE PROJECT
(1)    THE OBJECTIVES
The govemment of Indonesia, following the global oil crisis in 1979 had launched the national policy to
reduce the domestic use of oil as source of energy and enforce the non-oil export in the future. The policy
had put coal reserve as one of the immediate atemative energy resource, so that an effort to develop the
reserve and to explore new reserve had been enhanced since then.
&WAA4WWPROL 20E-B                              BA-THE WEST ASAM-ASAM COAL MINE DEVELOPMENT
SOUTH KAIJMANTAN



PT. ARUTMIN INDONESIA                                                            2 - 3
The policy had been formulated into several programs as follows:
Change of source of energy for power generating plant from oil based souice of energy Into coal
fired powerplant or combined cycle.
Change of source of energy for cement plant from oil based energy into coal based energy.
Increase the coal mine production throughout Ihe country and exploration activity to find new
reserve area.
Enhancement of private (domesticdforeign) participalion in coal mining development throughout
the country.
Increase coal export in conjunction to the policy to increase non-oil export.
With these policy and programs it is expeded that oil sector can be kept as one of the strategic source
for foreign exchange earnings, and the non-oil export has to be prepared to enter the global compelilive
markets, while coal can be used for source of energy for domestic industrial developnent and overall
socio-economic development.
(2)    THE BENEFIT OF THE PROJECT
The West Asam-asam Coal Mine Project is under contractual obligation to supply coal to the World Bank
funded Mine Mouth Coal Fired Power Plant (PLTU banjarmasin, 660 MW) nearby to strengthen electric
power generation capacity in the area. The Power Plant will be developed on stages and interconnected
with PLTA (Hydroelectric Power Plant) Riam Kanan in South Kalimantan, wnich will further be developed
in one electric power interconnected transmission system through-out Kalimantan.
Both the coal supplier and the Mine Mouth Power Plant will bexnefit the Government and the Local
Government in terms of industrial development and socio-economic development as follows:
1.    Coal Production
2 Million tonnelyear West Asam-asam lignite product of PT. ARUTMIN INDONESIA wil be
supplied to PLN's PLTU-Banjarmasin. The arrangement will benefit both the government as the
main owner through PTBA, the contractor (PT. ARUTMIN INDONESIA) and PLN, in
implementating the plan to develop the PLTU.
SlAW2.WPRA2e l  BIS                            ElIMiE WEST ASAM-M COAL MINE DEVELOPMENT
SOUTH KAUMANTAN



PT. ARUTMIN INDONESIA                                                           2 4
2.    Employmenl Opportunity
The coal mining development and operation will open-up directly job opportunity for field operators
and workers recruited by ihe company as well as contiactors and other service contractors, hired
by the company.
Indirectly. witli the Increasing activity of contractors, there would be increasing demand for other
service by the company and workers which may beneflt the growth of home industries, traders
and other supply from surrounding communiy.
3.    Technological Transfer
With the condition of the limitation of supply of skilled and semi-skilled technical wu-ers it is
therefore required by the company to have on the job and other training program. The training
program will generally sponsored by the company with sufficiently convenient faciiity at the work
place.
Further training program for the permanent staff and workers are usually arranged by the
company:
Funher program abroad for talented staff
Training program through the compary headquarters in Jakarta
Training for open pil mnining operalors in cooperation wih PT. fP rsero) Tarnbang Batubara
Bukit Asam in Tanjung Enim.
4.    Other Benefit
The existence of coat mining developnient would benefit the area indirectly:
Opening-up isolated area such asAsam-asamvilage, MuaraAsam-asam and Pandansari.
Induced migration from other part of the region andlor Indonesian which would benefit the
population distribution.
Induced the assistance to the local govemment in rural development management.
Increasethe population welare by induced economicgrowth, education and healththrough
cooperatve interaction.
aSfti"MWPAOL. WE on                           GATHE WEST AS-ASAM COAL MNE DVELOPMENT
SOUTH KAUMANTAN



PT. ARUTMIN INDONESIA                                                           2 - 5
5.    Developmenl Alternative
After considering the reserve condikions (distributlon, slopes), the landscape condition and
technologicalVeconomical aspect of coal productiolvdelivery, the alternative scheme for coal
reserve mining, process and transporlation are as follows:
a.   The West Asam-asam coal reserve will be developed by open-pit mining and truck and
shovels method.
b.   Coal washing and crushing will be processed at the stirck-pie area at PLTU site.
c.   Coal will be transported to PLTU by truck, through hati road.
6.    Adjacent Project Activties
Several other project development are planned to be developed and already in operation
surrounding the area. The activilies may have relation in some other way to the West Asam-asam
coal mine project and may require the determination of their relationship to the project under
study. These activilies can be identified as follows:
a.   Several transmigration settlement area related to Hutan Tanaman Indusiri (HTI) Forestry
Nucleus Estate (Transmigration PIR-HTI), under Transmigration Proect WPP VI in
Sebambam.
b. (4 x 65 MW + 4 x 100 MW) is planned to be devebped on stages. ocated 5 km to the
South of the mine sKe. The firs stag development, Unit I, 65 MW, is planned to be
operating in 1997. And the whole unit is planned to start operating in 2000. The area
required for the development is 110 Ha.
c.   HPH - PT. Hutan Kintap, base on SK, HPH No. 55QOKps/Umn1f1997, the concession area
is around 125.000 Ha.
d.   Within this area has been operating.since 1987, Woodworking and sawmill industry, a
consorlium of PT. INHUTANI and Korean Development Company Lrd. (KODECO)
managed by PT. Hutan Kintap, the annual produclon capacity is 68.000 cu.m.a wih
activity area is around 5 Ha.
e.   Still whhin PT. Hutan Kintap is planned to be developed 3000 Ha area for HTI (IHtutan
Tanaman IndustrfllndustrialForest Estate) excented by PT. Hutan Kintap and PT. Indoraya
Everlatex, Species will be cultivated is Eucalyptus sp.
f.   There are several other sawmill industry operated by local people surrounding the HPH
area.
AWAM4Pn.RM 2WEM                               EIA1HE WEST ASAM-ASM COAL MINE DEVELOPMENT
SOUTH KALUMANTAN



CHAPTER 3
PROJECT DESCRIPTION
THE ENVIRONMENTAL IMPACT ASSESSMENT OF
THE WEST ASAM-ASAM COAL MINING PROJECT
IN BLOCK 6, SOUTH KALIMANTAN - INDONESIA
PT. ARUTMIN INDONESVA



PT. ARUTMIN INDONESIA                                                              3 -. 
CHAPTER 3
PROJECT DESCRIPTION
3.1    PROJECT DEVELOPMENT PLAN
(1)    MINING DEVELOPMENT PLAN
The West Asam-asam Coal Mine development plan is rG'ated to the development of PLN's Mine Mouth
Power Plant (PLTU Banjarmasin) south to the mine site. The coal mining development plan will includes
activity stages as follows:
a.    Mining Preparation
The mining preparation activities indude exploration, feasibility study and mine planning.
Exploration in the Asam-asam coal basin has been conducted during 1988 - 1989, when the
boundai of the reserved area was determined, and folowed by feasibility study for mining
development and marketability for mine mouth power plant.
Mining plan will be prepared based on delailed survey considering the technical, economical
aspect of efficient and commercially viable operation.
b.    Construction
Construction activities will includes construction df mine sevices, maintenance and coal handling
facilities, underpass and long haul road to the Mine Mouth Power Plant (± 5 kms).
c.    Mine Slarl-up
Mine Start-up acdivities will indude mobilizations, and other mine operation preparation to ensure
the coal production will be conducted in effident manner. These activities will include
determination of initial delivery and stock piling which will occur in conjunction with Mine Mouth
Power Plant Slart-up operation.
IAWAAW03.W.R02, 2O7EM                           EA-THE WEST ASAMAS  COAL MNE DEVELOPMNT
SOUTH KAUMANTAN



PT. ARUTMIN INDONESIA                                                            3- 2
d.    Mine Operation
Mining continued activities will includes activiies to efficiently and economically producion, and
delivefy of coal aiming at 2 Million tonnelyear coal to be delivered In accordance to the contract
agreement belween PT. ARUTMIN INDONESIA and PLN.
d,    Post Mining Activities
Post mining activities will include reclamation, revegetation, sales cease, demobilizalion of
personnel and equipment. Reclamation and revegetation will contemparanously conducted in
accordance to the back filling mining concept.
Development schedule based on the development items is illustrated in Figure 3.1. The figure shows that
the West Asam-asam mine-life time based on the minable volume of reserve and production capacity of
2 MTPY will last for 25 years.
Table 3.1 illustrates the base sales anticipated to occur for the life of Ihe West Asam Asam Mine. All sales
are anticipated to be directly allocated as mine mouth supply to the proposed power plant.
Table ai
WEST ASAM ASAM MINE
PRODUCTION SCHEDULE
PERIOD (VR)                         SALES TONNES (millions)
0(pre-sales)                               0.0
1                                      0.5
2                                       1.0
3                                      2.0
4                                       2.0
5-25                                     2.0
Total                                   46.5
(2)    LOCATION AND ACCESS
The West Asam-asam deposit is located in the southeastern part of Kalimantan Selatan province, within
the administrative boundary of Kecamatan Jorong, Kabupaten Tanah Laut. The deposit stretches 5 Km
southwestem most of the Asam-asam deposit with approximate width 1,5 Km and total area of ± 750 Ha.
The location within 3°55'6' - 3055t12 SL and 115°37' - 1150533' WL, near Asam-asam Village and
Asam-asam river and strike 10 kilometers inland, parallel to the coast line (Figure 3.).
EBWA&MUR.R.M. 20nEss                           EUA-THE WEST ASAM   COAL MINE DEVEfOPMENT
SOUTH KALJMANTAN



PT. ARUTMIN INDONESIA
Figure 3.1 : WEST ASAM-ASAM COAL MINING DEVELOPMENT ACTIVITY SCHEDULE
ACTIVIlY
DETAILED SURVEY
FEASIIULTY STUDY
APPROVAL PROCESS
MINE PLANNING
OFFICE CONSTRUCTION
MINE FACIUTY CONSTRUClION
LONG HAULROAD CONSTRUCTION     *
LAND ACQUISITION
LAND CLEARING
OV\ERUROEN STRIPPING
COAL PRODUCTION
RECLAMATION
*1  O                       5                         GO                                                  20 D2a
YEAR
Ca
BUAFG 31 FW1 A 02 .07O e$ 98                                                                                                                                    - A V%&



Figure 3.2
LOCATION MAP OF WEST ASAM ASAM
COAL MINING PROJECT                                              :       i                        A :
#Km  KEBUPATENbUAR ,,  g                                4 \,B; KARTf-a
MU  "           -34'L          -, -,'         e ./-r|{g     
ORIENTATIO MAP ~ ~ ~ ~ ~ ROO 
v~~~~~M                                         *
leA.M  '   t' ";'\ K__,:t  ''',> X-~~~~~~~~~~E M&t4UEN9r
- 4'.S ,1 D                                         'i  UrdA'
STUDYAREA                                                                                     TAJAVASA4
-J                    r&



PT. ARUTMIN INDONESIA
The land status Is owned by government under the HPH (Forestry Development Tight) concession of PT.
Hutan Kintap a consortium forestry Industry of PT. INHUTAN-I 11 and Korean Development Company Ltd.
(KODECO).
The provincial road, passed by wilhin 2 Km to the south of the deposit location, and 130 Km away or
within 3 hours drive from Banjarmasin, the South Kalimantan provincial capital.
(3)    PRODUCTION ROAD ALIGNMENT
The coal will be transported to the Mine Mouth Power Plant (PLTU Banjarmasin) through 5 kms long haul
road crossing by underpass through the provincial road to the south of the rmine ske. The land for road
alignment is also owned by the government under concession of PT. Kiulan Kinlap.
The road will be privately construcled by PT. ARUTMIN INDONESIA due to some constraints in utilizing
the existing forestry logging road.
32    RESOURCE DESCRIPTION
(1)    REGIONAL GEOLOGY AND STRATIGRAPHY
Block. 6, located on the eastern flank of the Meratus Mountain, lies at the junction of two Tertiary basins,
the Asam Asam basins to the south and the Kutai basin to the north. These barin originated from block
*aulting during tht Paleocene and these faults were probably active during most of the Teftiary.
Deposition within the basin began in the Late Eocene with a major marine transgression. This is part of
a major transgressive - regressive cycle that affected sedimentary basins throughout Southeast Asia
during the Tertiary. Marine transgression reached its peak in early Middle Miocene, followed by regression.
It is during this regressive phase that the W,rukin Formation was deposted. Uplift of the Meratus Mountain
duting the Late Miocene resufted in deposilion of the Dahor Formation which is mainly a fluvial and alluvial
fan deposit (Fgure 3.24).
The Asam Asam deposit occurs within the Warukin Formation of middle to late Miocene age (T6-T7 Unit),
characterized by sandstones, mudstone, silkstone, intercalated with many lignite seams. The lignite seam,
up to 36 metres thick are generally brownish black, dult to subdult lustre and moderately strong with tight
planar dosed cleats. Sandstone are fine to medium grained, well sorted, commonly very thick and
unconsolidated and commonly fining upward. Mudstone are soft, commonly sandy or silty and frequently
intedaminated with carbonaceous and thin lignitic bands (Figure 3.:.
EAWAAWSPRO. WEBB                               EUATHE WEST ASAMASAM COAL MINE DEVELOPMENT
SOUTH KUMANTAN



F                                                 L:~~~~~~~~~~~~ 
F~~~~~~     
:~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~G VA  <feQ\'' 
- 45-§r  4
S.J~~~~~~~~~~~~~~~~~~~~~gr 3. 2n a;
,~~~~~~~~~ '                                                               XW~ 
GEOLOGICAL MAP~~~~~~~~~~C
£5135  *~ ~ ~ ~ ~ ~~~~~~OFAA-AA  EOSTZN



3.7
Age   rTh         ck   ForLon Lil0_ology          De3crlp  Iorn
PL IOC-E1iI
c- Cloysion, sliono, sandsaons,
* .100   cOAIO                        ongonroloe numerous Ihin coal beds.
up to
U      2000   WARUKItl t          _--  Cloyslone,mudslone, thick (40.n' I
O                                 _         lignile, mInor llmmslone al bose.
wT     2Yo          D        i     f        Limeslong, morl, cloyslone greonl3h
U                                           3  snd slono, rare glouconlT e
O ~~~~~~~~~- _ .-.
_____.-              *. 
W      2(-  __  _  Uppeston, marl                         cloy s lone gIhln
__  =_ _  llmesiono.;
z~~~~
Wi    up Ilo    TA NJUI4G    _          _Thin coal.
O                               __ _    Lower unil , bosol conglomcrole,
W  _    _    _sandastone, Ihick coal I 7m t ,locol
g7r?-e:-'bosoll mnirU3ion3.
. -
PIZE-          PR7E-TERAnT   ;' , 4     Seeperilintto ond mnelsodedmenis.
Figure 3.3
REGIONAL STRATIGRAPHIC COLUMN



PT. ARUTMIN INDONESIA                                                              3 8
(2)    RESOURCE CONDITION
The Asam Asam deposit Is one of the two major lignite deposils In Block 6, the deposit stretches from near
Asam Asam village to Jumbang over a strike length of 47 kilometers (Figure 3.2A).
Lignitic occurrences were fist reported in old Ducth literatures. PT. Arutmin Indonesia conducted
reconnaissance survey over the area since 1982 followed by semi detailed mapping 1984 and delailed
mapping (1988-1990). Balween November 1990 to 1991, a driling program was carried out at Ihe
southwesternmost 5 km of the deposil, known as West Asam Asam. 136 holes totalling 5,279 metres were
drilled.
No. of hdes meters
Powerng               eo              1,989 m       open hole
Mayhew 1000          33              2813 m        open hole
23              477  m        conng
Total     136              5.279 metres
Drill cores of individual seams were laken to check for lateral qualiy variation within the deposi. The
seams were also analyzed in separate section to check for vertical variation within each seam.
The lignite seams in Asam Asam occur toward the upper part of the Warukin Formation. In West Asam
Asam, seven (7) distinct seams which splits intensively along strike have been recognized wihin the coal
bearing interval measuring about 695 metres thick. Stratigraphically, this interval can be divided into 3
Subunits (Figure 3.4), namely Upper Ugnite Subunit, Middle Sandstone Subunit and the Lower Lignke
Subunit.
The Upper Lignite Subuni is 190 metres and has 3 seams, namely A, B and C. Seam B is the thickest
in the area and has a true thickness of 36 metres. Seam C is 2B.00 metres. Both split and thin along
strike. The Middle Sandstone subunit is dominated by sandstone and contain 9 thin insignificant lignite
seams. The Lower Lignite Subunit, measuring up to 255 metres contained up to  1 lignite plies, tentatively
grouped into 3 seams, E, F and G. These seams varies in thickness from 1.40 m to 19.01 metres. Locally,
at West Asam Asam, the seams strike at 70 degrees and dip 30 degrees to the southeast. No faulting
have been detected yet in the area.
EKWAAOWP RQ 2D1E uE BA-THE WEST ASAM-ASM COAL MINE DEVELOPMENT
SOUTH KAIUMANTAN



FIGURE 3.4
SCHEMATIC SEAM CORRELATION
WEST ASAM-ASAM                                                        3 9
SEAM A -
UPPER  _  _  _  -   _   _  _  _  _  _,_U
a.U -1
B UPPEFR ~    C- 
SEAM C     
LOWER            _                        \    s LOWER
LIGNITE SUB UNIT                                         X     e.-
SEAM D
SANDSTONE                     D           <
SUB UNIT          l-                               -
EU .1
0                    ~~~~~~~~~      ~~~~E UPPER  .2
SEAM E         /4
F.U-1
F UPPER        F.u-2
LOWER            ,SEAM F  
LIGNITE SUB UNIT                                      F\-
G.U -1
G UPPER  0g    G.U - 2
SEAM G        _
\ G LOVER        G-



PT. ARUTMIN INDONESIA                                                                   3. 10
In hand specimens, the lignite is brownish with dull to subdult luster, concoidal fractures, containing
moderale amount of finely disseminated resinous nodules. Pyrite are very rare. In cores, bedding
separation between lignite and non-lignile are commonly gradational. Analytical results of bore-core
samples of all the seams indicated the lignite to be very low in ash and very low In sulphur. Comparison
of individual seam shows no signincant lateral varialion of quality along strike.
Analysis of bore-core samples indicated very low sulphur and very low ash content average qualty as
follows:
Total Moisture                      34.9 %
Inherent Molsture                   21.5 %
Ash                                 3o %
Volatile Matter                     39.7 %
Fixed Carbon                        355 %
Total Sulphur                       0.3 %
Specific Energy (A.R)               17.56 MJ/Kg
Calorific Value (A.Fr             4,190  Kcal/Kg
The average composite seam ash content of all seams and pies is 3.1 % to 3.7 %. A higher ash is
analyzed at the top and bottom of each ply, due to the gradational boundary. Sulphur content is also very
low, wikh an average seam content of 0.34 %, ranging from 0.061o 1.40%. Relatively high sulphur of up
to 2.8% were analyzed in 7 samples. They are localized, occurring either at the top or bottom part of the
seams. When combined with the rest of seam, the composite sulphur content were all less than 0.5%.
Trace elemerts in the coal seam are illustrated by Figure 3.5.
Ash composition on a dry basis of the West Asam-asam resource product is as follows:
Type                          Avg. (%)                       Range (%)
Silicon as SiO2               37.69                          19,50- 60.00
Alumunnum as A1203            17,10                           3,00 - 51,50
Iron as Fe2O3                 29.28                          4,75 - 52,50
Calcium as CaO                 6,39                           0,79 -18.80
Magnesium as MgO               3.28                           0.64- 1,70
Tdaninas0TiO2                  0.54                           0.15- 1,38
Sodium as Na2O                 0.21                           0,08 - 0,66
PotassiumasK20                 0,38                           0,15- 0,78
PhosphorusasP205               0.18                           0.05- 0,80
Manganese as Mn3O4             0.65                           0,13- 1.09
Sulphur as S03                 4.65                           0.03 -10,20
Barum as BaO                   0,35                          0,14 - 0,61
Average (air dded basis) ash is 3,3 %.
Source       Asam-asam Resource Report Block VI, PT. ARUTMIN INDONESIA
Laboratory: PT. Geosenice, Bardung. 1989- 1991.
BA,WA.W.PRG 2OWE Bes                               EIA-THE WEST ASAM-ASAM COAL MINE DEVELOPMENT
SOUTH KAIJMANTAN



3 11
Figure 3.5
PRESENTATABLE TRACE ELEMENT ANALYSIS OV ASAM-ASAM LIGNITE COAL
Trace leliici,it                                     SAMPLE
(ug clemiicnt/g ias aunlysed coal)
8216C     8216C      8216C      8216C     8216C       8216C
BUI      BU2/314     BLI        BL2       CU2      CU+CL1I/2
by Hydrida Genefnfiom/AAS
Aslrtinioiy                            1.0      1.          1.0       1.0 I.19             .1H
Arsenic                                1.1       1.0        1.0       1.0       2.0         I1.5
Selenium                            <(0.1      c0.1       <0.1       c0.1      <0.1         l.1
by Cool Vnpour Flanelemss-AAS
Mercury                              0.13      0.06        0.29      0.18      0.08       (.(1(
tj GraphileFumace-AAS
Cadnmium                             0.02      0.01        0.07      0.01      0.04       l.04
Silvcr                               0.31      0.20        0.23      0.34      0.43       0.411
Molybdenum                           5.111     3.10        3.87      9.98      11.7        15.5
by ICP-AES
Beryllium                            0.17      0.05        0.16      0.33      0.25       0.27
Lead                                 1.07      0.49        0.80      1.02      1.25        1.86
Nickcl                                1.74     0.27        0.27      6.39      4.94        6.36
Zinc                                 3.74      2.12        3.61      8.08      13.9        10.6
Chromium                             0.55      0.13        0.68      0.92      2.37       0.8 I
Manganese                            59.6      48.3        82.2      127        110        225
Copper                               3.45       1.51       1.34      1.69      2A3        3.25
Vanadium                             0.82      0.14        1.17      3.50      3.46       1AI)
Strontium                            39.0      42A         25.1      25.1      38.0       42.1)
Boron                                  95        85         70        80       < 10       < 10
Cball                                5.75      3.08        4.34      11A       14.2       3.86
Barium                                  -         -           -         -      56.5       1I1
Lithium                                      -                -         -      0.54       0.39
by low Selective Electorde
Fluorine                               65        45         55        60          -          -
Sources      Asamt-sani Reimurce Report, Block VI, PT. Arutmin Imidonesia, 1990
Laboralory: PT. Geoserviccs. Ban'Jung 1984 - 1991



PT. ARUTMIN INDONESIA                                                             3. 12
(3)    RESERVES
Minable reserve calculations are based upon computer modeling and current avalable topography survey.
Preliminary reserve calculation eslimated 50 million tonnes of lignite at 4:1 strip ratio, considered
acceptable since less than 5 BCMs/lonne.
Reserve
(onrmes)
Upper Ugnite Unh           37,000,000
Lower Ugnile Urt           13.000.000
Total           50,000,000
West Asam-asam reserve calculation estimates show a total of 50 million tonnes to 4: 1 cut-off strip ratio,
an amount sufficient to supply the proposed Power Plant for 25 years
(4)    DEPOSIT AREA OTHER POTENTIAL
The topography over the deposit is gently rdling with maximum elevation of abot 75 meters above mean
sea level. Elevation reduces fairly rapidly into low lying marsh and nipa swaffp within 2-3 Km from the
coast line. Numerous small seasonal creeks cross the area, all flowing to joint the Asam Asam river.
The area is covered by forest, already selectively logged with remnants of thin uneconomic trees left.
About 30 percent of the area toward the provincial road are grassland. Soil ferility in the area is ralher
poor with thin top soil, weathering depth varies from 4 to 10 metres. And there is no indication for any
other mineable mineral resources in the area.
The project localion is within the administrative boundary of Kabupaten Tanah Laut. There are several
group of community villages along the provincial road and Asa,n-asam river around the boundary of DU
322, the biggest group is the Asam-asam village.
Part of the area is used as production forest concession and no conservation or protected forest are
identified. One spot of transmigration settlement within dose proximity of (2-3) Km from site location are
identified in the map.
Considering the condition of the deposit area, forestry is the main potential for the area to be developed
later on besides other plantation estates and farmings.
BAWAmAThPAC. uEUs                               EITHE WEST ASAMAM COAL MINE DEVELOPMENT
SOUTH KAUMANTAN



If
PT. ARuLrMIN INDONESIA                                                            3 * 13
3.3    MINING OPERATION PLAN
(1)    GENERAL MINING PLAN METHOD
The West Asam lignite coal reserve is deposited In homogeneous plys dipping at an average of 300 from
horizontal with long strike. Coal thickness varies across the strike of [le deposi, resuhling In varying
depths of cover and corresponding strip ratios (BCMltonne). Anticipated weak highwall condllions have
led to an expeted 1:1 final layback. Economics of resource recovery determines Ihe extent lo which coal
mining is undertaken.
With the reserve condition the 'open pit mining' and with Iruck and shovels' mining method would still
economizing conternporanous backfilling mining concept to be used in West Asam-asam coal deposit. This
method would minimize the mining front with minimum mining opening area.
It is further anticipated out of the tolal t 750 Ha proposed mining area, wilh effective mining operation area
for 50 Milion tonne coal reserve approximately 300 Ha. Wih the above mentioned contemporanous back-
filling and reclamation concept it is estimated that the active mine opening for 50 Million tonne to produce
2 MTPY coal is approximately 15 Ha in every year.
For the liFe of the conlract, a strip ratio of 4:1 uncovers the necessary amount of coal to fuel the power
plant for 25 years. Varying depths and thickness of coal seams result in various pits of exdusive depths.
Geological depositional condiions with respect tothe contractual highwall limits alow some pits to become
deeper versus others but yet all adhering to the ultimate highwall cut-off limits.
Relative thin overburden conditions with respect to the thick mineable seams will exhibit mass balance
figures insufficient to approximate original contours. Initial boxcut volumes are forced to be stored out-of-pit
due to the resirictive geometry which prohibits in-pit dumping only until final highwalls are reached.
Immediate initial reclamation is confined only to permanent out-f-pit overburden dumps outslopes. A mine
and restoration plan for the steeply-dipping coal deposil has been designed with these factors in mind.
(2)    GENERAL MINING DEVELOPMENT PLAN
With previously indicated drill information, resource is segregated into a number of contiguous but
exclusive depth bound pits. Total anticipated coal sales determines the depths for each pit relative to
global economics of recovery. To promote a varied and well cross-sectioned mix of all seams, several
*boxcuts' (initial development) will be developed simultaneously. The allows for constant seam access and
grade interdependency or blending, iF required.
EIA.WMAAWPROL 207F BBS                          EA.THE WEST ASAM AS COAL MNE DEVELOPMENT
SOUTH KWJMANTAN



PT. ARUTMIN INDONESIA                                                             3 14
As the 'pushbacks' (advancing production benches) contact the contractual highwall llmits, the sides are
advanced in a series of additional 'pushbacks' across the dip (or along Ihe strike). The conlact with
envisioned contractual highwall limits promotes contemporaneous reclamation and reduces the amount
of material potentially rehandled at a later date to comply wHh pManned post mining topography and land
use. The crossdip pushbacks are continued for each pit to meet planned contractual tonnages with
contemporaneous backfill and reclamalion taking place In previously mined-out voids.
(3)   INITIAL DEVELOPMENT
Initial development will be In Panel 3. This area contains a large cross sectional representation of coal at
a low initial Strip Ratio 4SR). Pushbacks will be to the southeast to an Intermediate highwall with pit
advancement along the sirike In a series of production pushbacks to either side of the initial boxcut.
Because of the steep resource deposikion, pit backfill cannot occur until final highwall limits are contacted.
Angle of repose of backfill inhibits any backrill on the footwall updip from the production bench
advancements (pushbacks).
The aforementioned intermediate highwall is located at a bench depth equivalent with depth progress on
the pit extensions. The balance of the deeper pits are siripped in later years and continued until
contraclual limils are reached. This method:
*     Economizes the inilial development of reserves
*     Promotes contemporaneous backfilUreclamation
a     Reduces out-d-pt overburden storage
*    Avoids final highwall (in thickest coal areas) determination to end of term (contract).
*    Avoids severe depths and possible safeguard hazards during initial years.
Three separate boxcuts will be developed simultaneously in Panel 3 of the West Asani Asam coal reserve.
Each will be driven incrementally to specific highwall contacts prior to being advanced along the strike. Foa
the lowermost recoverable seam ('Gm seam) in Panel 3 ('G pit), approximately 2,000,000 bank cubic
meters (BCM's) will be hauled out of pit and stored permanently north of the cropline. Subsequent
backfilled material within Ihe pit will be molded to the out-of-pit material into a reclaimable surface
consistent with the post mining land use. In this pit the -10 level represents the contractual boxcut depth
limi across the 'G" pit's strike.
Similar disposal techniques will take place downdip for the 'P seam CF pit) and 'BC seam' (B pit). Pi
'2B will be developed the -20 level wih is waste being backfilled into Pit '31's' void. PR '38' will
accommodate Pit '2B's material to be consistent with the surrounding topography and molded into Pit
'3B's out-of-pit storage site.
EAWAAMWPAR. 2WlE Bl                             EWATHE WEST ASU-ASM A COAL MINE DEVELOPMENT
SOUTH KAUMANTAN



PT. ARUTMIN INDONESIA                                                            3 15
Simultaneous development of Pit "bB and *C' seams cause approximately 3 million BCM's will be stored
out-of-pit. As Pit "3.A's pushback is safety progressed eastward, in pit dumping will take place into Pit
'3A's' void. Pik "3A's boxcut and initial development will be to the -40 level.
The above boxcut development sequence will take 5 years to complete to the prescribed anticipated
deplhs. Continued operations lengthen these levels across the strike from similar levels at deposits ends.
Again, as production faces can safety accommodate in-pik backfill, waste material will be hauled directly
into the mrined out aieas and conlemporaneously maintained. Backfill will lie Into the previously out-of-pit
spoil to tho highwall. Post mining topography with gently decreasing sloping contours will ultimately tie into
sedimentation ponds (final voids) for drainage contrel. Rehabililated land will support the post mining land
use consistent with international standards for 'hin' overburden coal deposits.
A secondary boxcut will take place at Pit l1As western limit. Approximately 2,000,000 BCMs will be
stored permnanently north of seams OB  & 'C' out-crop. Subsequent back rill of the pit will be molded into
the dump face and tied to the highwall as safe continued operalions are maintained. Pushbacks will
progress eastward across the dip to the -20 level with contemporaneous backrilling fdlowing. Model of
continuous backfilling mining concept at one single active mining area is illustrated in Figure 3.6.
In accoidance to the above mentioned mining development plan concept the mining development activity
plan and schedule by pit showing schedule for respectivel the mining, out of pit dumping, in pit dumping
(back-filling) and reclamalion is illustrated in Figure 3.6.A. Based on this schedule mining layout progress
is illustrated in five (5) years stages in Figure 3.6. B, C, D, E, F and G.
Based on mining stages illustrated in figure 3.6 B-G, the continues back-filling mining concept will minimize
active mine opening into approximately an average of totaling 15 Ha/year moving along the strike.
(4)    CONTINUED MINING ACTIVITIES
Continued mining operations (post boxcutting) will progress along the strike (cross-dip) carrying wih it the
various activities of mining:
Deforestation, Clearing & Grubbing
Topsoil Salvage
Overburden Removal
Coal Mining
Backfill
Reclamation
Drainage Control
8AWMaWFR.U. 0E OMs                             BA-1IE WESTASAM    OAL MINE DEVELOPMENT
SOUTh KAUMANTAN



Figure 3.6
TYPICAL MODEL OF ACTIVIE PIT MINING                                                           3-16
(Contemporanous Backfilling and Reclamnation Concept)
* ~~~ADVANCEtME0  \ 
y   l.CLARINGfCRUBBING              II\ 
2. TOP *S0O_I .ING                       \\ 
UNDISTURBED AREA      j /                        /     t/               M      
*  FINAL HISHWALL   _X|                                                S 
|   gUNDISTURBEE
IRECLAATlp                                      vp/  
EI.- ~     ~ 20,,                  ,*
go * it I u I I I ITO
i^ ez K^ * > t t ( 095  <   > r J1 / 1    t Z Il XSTCKPIL
ftexo--\^.N!^;                   /X{lR:..'IlI           
\-  'Sb s i  w- - w: J  If.E4fTL     
.^.:.ws-: ,. ,,'?N_..- o -AZ
-\: .: \ .~~~~t .;.:'5r  seRy;f\;      
t  '  SS  >t  _/,s|\   X'   ||.|   



.3 17
3~~~~~~~~~~~~~~~....  .. .                                                                                ...  .. .. 
I ~ ~ ~ ~    ~     ~     ~    ~    ~ ~ ~~.............                                                .......................
.a       . .  .   .  .        . .   ..                                                                       .           . .       . .        . .        . .       . .       
.1 ~  ~     ~     ..         ..           ..       ..             ..............                                      ......................
..  .    .   .    .   .  .       .   ..                    .           . .  .  .   .  .     .        . .        . .       . .        . .        . .        . .        . .       .  .       .  .       . .
I~~~~~~~~~~~~~~.......    ..  ........   ..  ..  ..
..        .  .   .   .  .   .   .                                                                                              .  .            .   .  .
I ~ ~ ~ ~  ~       ~       ~      ~       ~      ~       ~      ~      ~     ~     ~         ..     .....                    
.a     .....                  ......U                                                                                    ..      .J           .J                                        ..         
I           ........                                  ..           ..         ...........                             .............                                            . ....                ..
...       .....                  .....                                                    ..         ..         .        .............                                         ..           ..         ..        .
..    .   .  .   .   .        .   .  ..                                         .          . .  .   .  .   .  .       .  .   .      . .        . .        .        .  .        . .        . .        . .       .  .
.                                                                                                                                                                                                                        
a                                                                                                                                                                                                                         
I~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~           
.                               
.                                                                                                                            
..        .   .   ....          .   ..                                                 . . .   .   .  .   .                                                        . .        . . .   .  .   .   .  .   .  .       
..          . .  .   .           .  .   .  .   .                                . .        . .      .  .           . . ..                        .   .  .   .   .  .               . .      . .        . .        . .
if ~ ~ ~ ~   ~     ~     ~     ~     ~    ~     ~ ~          ......              ..             ..                            ..         ....                 ..         ..         ..         ..
C3
aLj
LU.
r-J
I   im i                              I                                 I I lin
CO') I ~ ~ ~ ~ ~ ~ ~~                                                             4  



Figure 36B            i        i        i
MINING PIT LAYOUT    ,.                                                     +        +
I at 5 YEARS                  I                                                            ,
*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ I                               I0,.
IF'+-++    }+                                                 -          ++'
gs   10  ,; MinsseNiceFzilities |ss 0 Setlig Pond (Detenng)
I                                 ,Muining and Pattern 0Verburden Backiling
I      '                , .    e~~~~~~~~~~~-   MN. Mining Diredton
I.~~~~~~~~~ O   F ackIIedA,
I~~~~~~~ R,edaimed Area
::::.Revegetation
m~~~~~~
P  =                                              ~~~~~~~~~~~~~~~~~~~~~~~~~c- vAcive Pit Within 5Yea'    , 
o  0.2    0.4    0.6   0.8   1KM



Figure  3.6C                      i                       i
MINING PIT LAYOUT                                                          +                           +                     +             +          _
2nd 5 YEARS                                    !       l
' ' T -p_ -S  It
N  ~~~~~~~~~~~tcoe0  Settlig Pond (DewatriNg)
.1-         .i4-           4-            .1-           -            A   StV |) Open Pit
Mine SerNic Fasilies   ;            Mining and Patter 0 Verburden Badcyn
MN.  ring Direc6on
j          -4  BF. Bakdllng
i  li   ii   i: iBa_ dld Area
Redaimed Area
.::..Revegetaton
CZt_ Active Pit Wit   5 Years        c
0    0.2   0.4  0.6   0s   IIQ



Figure 3.6D                   i           .1        ii                        j            i            i      .!ii
MINING PIT LAYOUT                                                                                                    +           +
+~~~
3,d 5 YEARSI.                                    I    **++                                              -
IF~~~~~~~~~~~~~~--1 -l  +                                                                     + 
h             Skih O                                                                Settling Pornd (Dewatening)
- *1 1- *1- Ci-  - Mine Sennce Fasties )  Mining and Pattmr OVerburden Backflng
I.-   MN. Mining Direction
;i                                            j1  .  I  -     BF.Backdring
I l i       i          i j          i           i       _  Backfiled Area
I                               "Redaimed Area
:: : Revegetabon                 .X
C) _   t Afive Pit Within 5 Years
0   Q2   0.4  0.6  QS  ;KM



Figure   3.6E                                                                                                                                 +
MINING PIT LAYOUT                                                        +.           x-   |                      +           |   -
4th 5 YEARS             !         j                         - ,                                                               i
~~~I .am...... .1,\,= 
+~~~~~~~~~~~
--           Ic                                                                              If      CD  Ope  i 
Mine Service FasiodesMining ard Pattem O Verburden Bdi
,  l                           -MinoSeMceFasiOties .  ,!~~~~~~~~(-   MN. wfM   Dieco
*-4  ';IF. Backlgrg
'jBadded Area
ipRedairnedArea
.... Revegetalnofi
*  _ J  Active Pit WitnS Years



Figure 3.6F                    . '
MINING PIT LAYOUT             i                                             + . +.            + .
5t15 YEARS                            *,.       *        +     .  .                  +
h ~~~~~~~~~~~~~~~~~~++
' 16. I                '
*'  St,    ~~~~~~~~~~~~~~~~~~~~~+ '+
o Setkling Pond (Dewatering)
ervice Fasiies  .f    OOpen Pit
!  ,   .                   Mining and Pattemr OVerburden Backlig
i |*.MN. MiningDirec0nd
;  j-4 BF.Badcling
i       Ii  i   i   i   i  _    BadcdledArea
Redainmed Area
*    Revegeta00n    ca
I) Acive Pit Within 5 Years
--I  I   -L  l 4_
o  & 4 OhI0K IK



FigUre  3.6G *
MINING PIT LAYOUT                                                                    +            +              + ;  ;
SALES CEASE                                 I [          I                           +            +              +
+                    +
0  Settlig Powd Pewatwim)
* *~~~~~~~~~~~~~~~~~~~~~~~!- 11If. 1o   1-1 {Cqer. Pft
- .                               ,MUining and Pattem 0 Verbtden Badfiing
!-f  MN. MiNng Direcn9
I         --    SF. Ballng
j  i  ji      j            j            Back6kdArea
.. - ~RedaimedAha
Revegetation
">  Aclive Pit Whitn  5 Yem
0    0.2  OA   06    0.6  IKM



PT. ARUTMIN INDONESIA                                                           3 24
a.    Land Clearing (Deforestation, Clearing & Grubbing)
Overburden removal (stripping) Is proceeded by deforestation and topsoil removal. Large trees
are cut and removed by government forestry contractors. Bush and small timber is cleared
slashed, and piled by bulldozer al appropriale highwall siles for remedial burning or In-pk disposal.
Area cleared for mining acthe pit Is progressing In accordance to the progress of mining aclive
pit area followed by back filling and reclamation and revegetation. Based on minhg development
plan the area cleared every year Is eslimated approximately in average of 12 Ha. With
contemporaneous back-filling and continuous reclamation and revegetation concept time lag the
area left open every year in average is 15 Ha as rnentioned earlier (See also Figure 3.6, B, C, D,
E. FandG).
b.    Top Soil Salvage
Topsoil is selectively removed and segregated into topsoil stockpiles located sporadically near
continued operations or directly respread on regraded reclaimed areas. Front end
loaders/excavators load topsoil into rear end dump trucks for the haul to either regraded a