RIVER WATER QUALITY STATUS in 2004, a Total of 926 Water Quality Monitor- Ing Stations Located Within 120 River Basins Were Monitored (Map 2A, 2B & 2C)

pg.

18 MALAYSIA ENVIRONMENTAL QUALITY REPORT 2004 Ammoniacal Nitrogen(NH (BOD), ChemicalOxygen Demand(COD), Oxygen (DO),BiochemicalDemand ity consistsofparameterssuchasDissolved Index (WQI)usedtoappraiseriverwaterqual- biological characteristics.TheWaterQuality in termsofphysico-chemicaland and laboratoryanalysisdatainterpretation collected atpredeterminedstationsforin-situ lution sourcesaswell.Samplesareregularly This hassincebeenextendedtoidentifyingpol- to beginitsmonitoringprogrammein1978. prompted theDepartmentofEnvironment(DOE) detecting changesinriverwaterquality The importanceofestablishingbaselinesand ronmental assessmentof a watercourseinrela- (SS) andpH.TheWQIserves asabasisforenvi RIVER WATERQUALITYMONITORING QUALITY RIVER WATER 3 N), SuspendedSolids - Photo 8: Photo 7: Photo 9: Sg Tuaran, (Sabah)(DOEPhotoLibrary) (DOE PhotoLibrary) W Industrial Site(DOE PhotoLibrary) Water Sampling ataPollutedRivernear ater SamplingatanIndustrialSite RIVER WATER QUALITY STATUS In 2004, a total of 926 water quality monitoring stations located within 120 river basins were monitored (Map 2a, 2b & 2c). Out of these 926 monitoring stations, 540 (58%) were found to be clean, 278 (30%) slightly polluted and 108 (12%) polluted (Table 4(a), (b) and (c)). Stations located upstream were generally clean, while those downstream were either slightly polluted or polluted. In terms of river basin water quality, 58 rivers basins (48.3%) were clean compared to 59 river basins in toPhoto 52 8:in Illegal 2003; Effluent and Discharge9 (7.5 %) from remained Factory Outletpollut- 2003; 53 (44.1%) slightly polluted compared ed as in(DOE 2003 Photo (Figure Library) 12). Number of Basins

Figure 12 Malaysia: River Basins Water Quality Trend (1990 - 2004) MALAYSIA ENVIRONMENTAL QUALITY REPORT 2004

pg.19 Photo 10: Water Pollution due to Oil and Grease Contamination (DOE Photo Library) pg.

20 MALAYSIA ENVIRONMENTAL QUALITY REPORT 2004 and Sg.Perai(53%Sat),(Figure13).High (34.8% Sat)followedbySg.Klang(51.0% oxygen levelsweremostfrequentinSg.Putat Based onthe90-percentilevalue,lowdissolved are presentedinFigures13,14,15and16. continuous waterqualitymonitoringstations Cumulative waterqualitydatacompiledfrom15

Cumulative Frequency (%) Cumulative Frequency (%) iue1 aasa CumulativeFrequencyfor15CWQMStations Figure 13Malaysia: iue1 aasa CumulativeFrequencyfor15CWQMStations Figure 14Malaysia: (Dissolved Oxygen),2004 (Ammonium IonConcentration), 2004 Sg.Rajang (782.8NTU),(Figure15). followed bySg.Langat(1023.3NTU)and quently detectedinSg.Klang(1190.1NTU), (Figure 14).Highturbiditylevelwasmostfre- (7.1 mg/l)andSg.BatangBenar(4.6mg/l), ly inSg.Putat(7.7mg/l)followedbySg.Klang ammonium levelswererecordedmorefrequent- Cumulative Frequency (%)

Figure 15 Malaysia: Cumulative Frequency for 15 CWQM Stations (Turbidity), 2004 Cumulative Frequency (%)

Figure 16 Malaysia: Cumulative Frequency for 15 CWQM Stations (pH Level), 2004

Continuous monitoring is vital for early detection of pollution influx. Over the years, a number of pollution incidences have been observed at many of the continuous monitoring stations. For the period January to December 2004, fifteen river water conditions exerting distinctive pollution influx were observed (Table 3). MALAYSIA ENVIRONMENTAL QUALITY REPORT 2004 pg.21 pg.

22 MALAYSIA ENVIRONMENTAL QUALITY REPORT 2004 Table 3Malaysia:PollutionInfluxObservedatElevenContinuousWater QualityMonitoringStations,2004 gBtn ea 1 a NH 19May Sg BatangBenar Sg BatangBenar Sg Putat Sg. Langat Sg. BatangBenar Sg. BatangBenar Sg. BatangBenar Sg. Labu Station Sg Skudai NH Sg Langat 10May Sg BatangBenar Sg. Putat Sg. BatangBenar Sg Putat 24June Sg BatangBenar 24 NH NH NH 26 Mac NH 24 Mac 25 Feb Feb 18 aePrmtrPotentialSource Parameter JanNH 19 Date 19 Sept a NH 9 May 7 Jan 26 24 Oct 22 Aug Dec Dec Figure 17Malaysia:RiverBasins Water Quality NH DO: 0.87mg/l Conductivity: 579.7 T DO: 1.34mg/l pH: 9.81 T DO: 0.68mg/L DO: 0.75mg/L pH: 3.90 DO: 0.03mg/L Cond: 519.25 DO: 0.15mg/L DO: 0.00mg/L NH NH NH NH NH NH riiy 392 based urbidity: 1369.25 industrial urbidity: 1454.13 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 : 7.25mg/L : 8.11 mg/L : 9.35mg/L : 8.47 : 6.78mg/l : 7.35mg/l : 6.65mg/l : 6.53mg/l : 6.83mg/l : 3.45mg/l : 4.44mg/L : 10.43mg/L : 8.19mg/L : 8.41mg/L 94 gLSewageorlatex-based : 19.42mg/L and industrial Sewage andearthworks Sewage orlatex-based Sewage orlatex-based Sewage orlatex-based Sewage orlatex-based industrial Sewage orlatex-basedand Sewage orlatex-basedand latex-based Sewage or latex-based Sewage or Sewage orlatex-based Sewage orlatex-based Sewage orlatex-basedand industrial and industrial industrial Sewage or Sewage orlatex-based T rend (BOD)1998-2004 ples revealedthatalmost allsamplescomplied Analysis ofheavymetals in5,800watersam- clearing activities. The sourcesforSSwereearthworksandland- basins asclean(Figure19). river basinsasslightlypollutedand78 gorized aspollutedbysuspendedsolids(SS),11 sewage. Meanwhile,31riverbasinswerecate which includelivestockfarminganddomestic Ammoniacal Nitrogen(NH source of 18). Themain as clean(Figure and 43riverbasins slightly polluted 47 riverbasinsas rized aspolluted, basins werecatego- Nitrogen, 30river Ammoniacal Based on turing industries. based andmanufac- charges fromagro- sewage anddis- tially treated untreated orpar- contributed by 17). HighBODis as clean(Figure and 65riverbasins slightly polluted 37 riverbasinsas rized aspolluted, basins werecatego- level, 18river Demand (BOD) Biochemical Oxygen sources. Basedon major pollution relation tothe water qualityin status ofriver 19 illustratethe Figures 17,18and 3 -N) wassewage iue1 aasa RiverBasinsWater Quality Figure 19Malaysia: RiverBasinsWater Quality Trend Figure 18Malaysia: - (Suspended Solids)(1998-2004) (NH 3 While thenumberof polluted riverbasins drop inriverwaterquality occurredin2004. (1990-2004) isshowninFigure12.Aslight The trendforriverwaterqualitystatus compliance. with 78%complianceandzinc(Zn)99% for iron(Fe) chromium (Cr),lead(Pb)andzinc(Zn),except arsenic (As),mercury(Hg),cadmium(Cd), Interim NationalWaterQualityStandardsfor with ClassIII, -N) (1998-2004) T rend pg.

23 MALAYSIA ENVIRONMENTAL QUALITY REPORT 2004 pg.

24 MALAYSIA ENVIRONMENTAL QUALITY REPORT 2004 Table 4(a)Malaysia:Water QualityStatuswithinCleanRiverBasin,2004 EA 1LMLK 9 (7 IA 2CII C 92 1 KISAP CLASS RIVER 89(87) WQI NUMBEROF 3 RIVER MELAKA OVERALL NUMBEROF 01PL RIVERBASIN KEDAH CODE STATE OO/25 II SEMBILAN II NEGERI JUASSEH JOHOR/ C C 91 91 III SELANGOR 1 SP 1 70 KETIL ARA 2 82(81) JERUNG 5 84(85) KURAU 9 09 MUDA PERAK 05 P.PINANG KEDAH / Q TTOSWIRIVERSSTATUS WQI STATIONS WQR 0 EELH29 8)TMRO 0CII C 90 2 TEMERLOH 90(89) 2 TEMERLOH 10T 6SLNO 5 (4 AAGKL 1 BATANG KALI 85(84) 9 SELANGOR 16 1BRA 6 (4 RA 2CII C 82 2 BRUAS 86(84) 4 BERUAS 13 11 9JOHOR 29 PERAK MUAR 38 8)GMNHH3 GEMENCHEH 81(81) 43 3 BATANG PADANG 81(80) 53 48 8)AA G AOG3 ANAKSG.SAYONG 81(80) 44 UGA AI2 SUNGKAI MATI HNEIN 2 CHENDERIANG .MNUN 1 P. MENKUANG HMNA 1 CHEMANGAR KLIAN BARU BKT TEMARONG LA MERLIMAU BERANGAN EEDH1 SERENDAH SELANGOR EAAG2 KEPAYANG EBD 1 MERBUDU PENGGELI KELAMAH KANGSAR SEGAMAT SENARUT SELUANG KANCING SUNGKAI KERLING SEROKAI TUMBOH SPG. LOI KAMPAR SEMBAH LINGGIU EAA18 II C 82 1 MELAKA KERDAH P TENANG EAG19 I C 93 1 PETANG LAYANG SEROM AA 9CII C 89 2 TAWAR UA 0S II SP 80 4 KURAU KUANG LEBAM JOHOR OA 9CII C 89 2 ROTAN PERAK PELUS BIDOR A II 2 YAU KIRI MUAR II C 87 4 MUDA LABIS KINTA ALONG CUAR KLAH PINJI RAIA PARI . BESAR 68 II C 82 16 1 1 4 1 4 1 1 2 4 2 2 1 2 2 8 2 2 2 1 3 2 1 2 1 2 1 6 2 2 2 2 2 2 2 2 2 2 4 1 1 9CII C 89 73 2CII C III 82 II SP C C 68 83 92 72 77 84 9S III SP 69 II II C III II II C 89 SP 64 C 76 III C II 88 60 88 SP 85 C 75 88 8CII C 88 7CII II C C 87 86 II C 85 0C 90 II III SP SP 92 80 63 2CII C 92 III II SP C 69 85 3S III SP 73 6S III II SP C 76 87 III SP 71 III II II SP C 72 C 90 91 0S III II SP 70 C 90 4C III 84 III SP SP 70 76 II C 90 2CII C 82 9CII C 89 5CII II II C C SP 85 87 80 8CII II C C 88 92 7CII C 87 6S III SP 66 SP SP SP SP SP CII CII III III III III II II II II Table 4(a)Malaysia:Water QualityStatuswithinCleanRiverBasin,2004(Continued) AAG3A NKEDU28 8)AA NA 6CII C 86 2 ANAKENDAU 86(87) 2 AMBAT ANAKENDAU 83(84) 32AE PAHANG 13 SEDILIBESAR 30A JOHOR TT OERVRBSNNME F OEAL IE NME FWIRVR CLASS RIVER WQI NUMBEROF RIVER OVERALL NUMBEROF RIVERBASIN CODE STATE 5HBERTAM 35CH Q TTOSWIRIVERSSTATUS WQI STATIONS WQR 5 MENTIGA 35M 5 PAHANG 35P 35B 1 EAUN 4 (0 JEMALUANG 84(80) 2 JEMALUANG 31B 1 MERSING 31A 5 LEPAR 35L 4BBRMRHN 3 (3 BEBAR 83(83) 8 BEBAR/MERCHONG 34 33 ROMPIN BERA 38 8)BATU 88(88) 53 08 8)AA G LPR17 PIII SP 73 1 ANAKSG.LEPAR 87(87) 10 08 8)BERTAM 89(85) 10 88 8)AUR 85(85) 18 8 (4 MENTIGA 88(84) 2 5 (5 BERA 85(85) 5 0 (1 MERSING 90(91) 1 EAGO AA 9CII C 89 1 SEMANGGOT KANAN EUO AA 7CII II C C 87 89 2 1 TEMUBOR KANAN SEMANGGOT KIRI .PY UGR19 II C 90 1 T. PAYA BUNGOR EIIBSR58 II C 81 5 SEDILI BESAR TASIK CHINI T MERCHONG SEMENCHU SEMANGER BERKAPOR KERATONG TRINGKAP KEPASING KUNDANG BENTONG LENGGOK ASIK BERA TEMIANG BELAYAR RINGLET BURUNG KELAYAT ROMPIN SAYONG SAYONG KER JEMPOL JEKATIH JENGKA TRIANG MUPUR EIG27 PIII SP 74 SENING 2 MERBA TEMON DOHOL TELOM REKOH JERAM KOYAN BENUS BAKAR KELAU TIRAM EO 0CII C 90 TELOR 2 SEBOL REMIS LEP TERLA PUKIN SERAI EA 1S III SP 71 SERAI 2 SANTI BILUT CHINI HABU JELAI T AR AM 9CII II C II II II C 89 C C C 87 2 88 90 87 2 1 2 4 4CII C C 81 84 1 1 5CII II C C II 85 90 C 2 2 88 2 1CII C 91 1 C 90 3 5C 85 2 3S III SP 73 1 0CII C 90 1 4CII C 84 1 1CII C II 91 C 1 89 2 9C 89 1 0CII II II C C C 90 92 90 1 1 1 1 8CII C 88 III 1 II SP C 87 75 91 1 2 2 8C 88 1 6CII C 86 1 9S III SP 69 1 9CII C 89 1 9CII C C C 85 82 89 4 1 3 4CII C 84 3 8CII III II C SP C 88 75 90 4 1 1 5S III SP 65 1 5CII C 85 1 6CII C 86 1 7CII C 87 2 6CII C 86 2 3CII C 83 1 0CII C 90 2 9PIII P 59 1 6S III SP 76 4 2CII II II C C II C II 82 87 C 81 C 2 1 83 2 88 1 2 4CII C 84 2 0CII C 90 1 7CII II C C 87 87 4 4 7CII C 87 2 2CII C 92 CII II II II II II II II pg.

25 MALAYSIA ENVIRONMENTAL QUALITY REPORT 2004 pg.

26 MALAYSIA ENVIRONMENTAL QUALITY REPORT 2004 Table 4(a)Malaysia:Water QualityStatuswithinCleanRiverBasin,2004(Continued) AAA 50 SARAWAK TT OERVRBSNNME F OEAL IE NME FWIRVR CLASS RIVER WQI NUMBEROF RIVER OVERALL NUMBEROF RIVERBASIN CODE STATE KELANT EEGAU3KKRI 6 (8 ETH28 II C 86 2 KERTIH 86(88) 2 KERTIH 39K TERENGGANU AN Q TTOSWIRIVERSSTATUS WQI STATIONS WQR 2 MARANG 42M 7 EAIG18 7)CRTN 2CII C 82 1 CERATING 82(79) 1 CERATING 37A 47K 44 56 52 49 43 46 0PK 08 8)BSL29 II C 90 III 2 SP 76 BESUL 85(85) 2 10 DUNGUN BALOK PAKA 81(79) 41 5 40 BALOK/TONGGOK 37 8KLNA 88 8)ARING 87(88) 38 KELANTAN 48 TERENGGANU KEMASIN SADONG RAJANG GOLOK KAYAN BESUT SETIU 18 9 3 1 (1 KARANGAN 81(81) GOLOK 6 87(89) 4 4 (5 KAYAN 84(85) 4 BESUT 88(89) 4 4 (3 KEMASIN 84(83) 1 7 (9 DUNGUN 87(89) 4 4 (4 KERAK 84(84) 5 83 (82) 5 (7 BERANG 85 (87) 88 (84) EGAA HP 7S II SP 77 1 PENGKALAN CHEPA EGAA AU38 PII SP 80 3 PENGKALAN DATU EEGAU28 II C 83 2 TERENGGANU T EJRN 3CI C 93 1 PENJURING EATN38 II C 88 3 SEMANTAN EEOG28 II C 89 2 TELEMONG TELEMBOH KELANTAN BINA EAU 4CI C 94 1 TERANUM ASIK GARU OGO 4CII C 84 3 TONGGOK SEMATAN ETN 8CII C 88 2 PERTANG MARANG BELATOP ETN 1CII II C C 81 91 2 1 SERTING PERTING AGI 0CII C 90 1 TANGLIR SADONG KERILLA PAHANG PERGAU TEMALA EGT27 PII SP 78 2 RENGAT PERTOK EAG19 II C 90 1 TELANG KELESA MARAN TAROM JER EA 0CII C 90 2 TEKAM NERUS RASAU BEROK KERAK GALAS EA 3CI C 93 1 TERAS TARAT EA 2CII C 82 1 TEKAL CHIKU RELAI SETIU BETIS KETIL PUEH AA48 II C 87 4 PAKA LIPIS IM19 II C 90 1 SIAM PEHI LUIT NAL BER T TIH ANG 1C 91 91 2 2 90 2 9C 89 3 8S II SP 78 2 1CII C 91 1 9CII C II 89 II 77 II C 2 C 3 C 87 II 88 86 2 C C 2 2 90 90 3 2 91 1 9CII C 89 1 9CII C 89 2 7CII C 87 2 1CII C 91 1 2CII C 92 2 9CII II C C C 89 91 89 2 2 1 0CII C 90 3 8CII C 88 9 7CII C 87 2 0CII C II 90 C 1 85 2 5CII II C C 85 91 2 2 8S II SP II 78 C 1 87 2 II II C II C 86 C 89 4 89 1 1 6CII C 86 2 2CII C 82 3 0CII II C II C II 90 SP 86 C 2 80 2 84 2 1 8CII C 88 2 7S II SP 77 2 6CII C 86 2 SP CII CII CII II II II II II OE .WQIBASEDON6MAJORPARAMETERS: BOD,COD,SS,pH,DO,NH 1. NOTE: Table 4(a)Malaysia:Water QualityStatuswithinCleanRiverBasin,2004(Continued) TT OERVRBSNNME F OEAL IE NME FWIRVR CLASS RIVER WQI NUMBEROF RIVER OVERALL NUMBEROF RIVERBASIN CODE STATE AA 1MNGLN 0 (8 LAKUTAN 90(88) 3 MENGGALONG 71 SABAH .OVERALL WQIFORRIVERBASINISCALCULATED BYAVERAGING WQIFROMALLSAMPLINGSTATIONS INEACHBASIN 5. ()Overall WQIfor2003 4. 3. RIVERWATER QUALITYSTATUS: C:CLEAN,SP:SLIGHTLY POLLUTED,P:POLLUTED 2. THROUGHOUT THEYEAR RIVER CLASSBASEDONINWQS Q TTOSWIRIVERSSTATUS WQI STATIONS WQR 4BATA 1 (6 BRANTIAN 81(86) 1 BRANTIAN 94 93 87 86 2SMLJU18 8)SIMILAJAU 82(88) 1 KABULOH SIMILAJAU 65 63 62 60 8SLBKN28 8)SLBKN28 II C 81 2 TINGKAYU SILABUKAN 85(81) 81(80) 1 2 TAWAU TINGKAYU SILABUKAN 91 89 88 84 3MMAU 1 (5 EBKT19 II C 91 TEMPASUK 1 90(91) MEMBAKUT 3 91(85) KEDAMAIAN 83 1 80 78 MEMBAKUT 75 73 PADAS 72 LAWAS TRUSAN LIMBANG 70 69 68 7DMTTAA 0 9)DAMIT 90(90) 6 DAMIT/TUARAN 77 KINABA UMAS-UMAS EGOA19 8)BENGKOKA 91(83) 1 BENGKOKA SEGAMA SUGUT LABOK PAPAR TATAU SUAI T ANGAN 1 (2 IAAAGN28 II C 82 1 2 KINABATANGAN 81(82) 4 5 (7 SEGAMA 85(87) 1 1 (7 KABULOH SUAI TATAU 81(77) 82(78) 85(76) 6 1 1 4 (6 APAS 84(86) 5 8 6 BUNSIT 90(90) LAWAS TRUSAN 7 LIMBANG 87(88) 86(81) 81(83) 2 1 5 2 (1 PAPAR 92(91) 2 82 (86) 88 (89) 91 (92) EEAGBSR17 PII SP 77 1 TENEGANG BESAR EGAOG18 II C 89 1 MENGGALONG 3 IGUGN19 II C 91 1 LINGKUNGAN UMAS-UMAS -N EAOG18 II C 86 1 MERADONG EGIA 7CII C 87 TENGHILAN 1 PANGATAN BONGKUD SUALONG SONG SAI TANDULU BALUNG URN39 II C 90 TUARAN 3 KEJAPIL RAJANG LIWAGU SARIKEI MALIAU LIAWAN MERALI KINIPIR TAWAU SUGUT LOHAN KOYAH PADAS SIBUTI JULAU SATAP SAPI 48 II C 81 14 2CII C 82 1 6CII C 86 II 1 C 84 2 193C I 3CII C 83 1 II II C C 84 90 1 1 2CII II C C 92 91 2 1 0S II SP 80 I 3 C 93 C 1 91 II 2 C 86 1 90 I II 1 I C C C 93 88 94 1 II II 3 II 1 C C C 82 82 87 2 1 1 1CII C 81 1 II C 85 1 5CII C II 85 II C 1 C 88 86 2 2 2CII C 92 1 II C II II 87 SP C 2 77 82 2 1 1CII C 91 1 1CII II C C 91 92 1 II 2 C II II 91 C C 1 II 86 81 C 1 5 82 1 2CII C 92 2 5CII C 85 1 9CII C 89 II 2 C 89 1 CII II pg.

27 MALAYSIA ENVIRONMENTAL QUALITY REPORT 2004 pg. MALAYSIA ENVIRONMENTAL 28 QUALITY REPORT 2004 Table 4(b)Malaysia:Water QualityStatuswithinSlightlyPollutedRiverBasin,2004 EA/1 ENM1 9(0 BERNAM (80) 1079 BERNAM 15 SELANGOR 14 SELANGOR PERAK/ ELS1PRI 07 7)AA 7S III SP 67 1 ARAU CLASS 78(77) RIVER WQI 10 NUMBEROF RIVER PERLIS OVERALL NUMBEROF 1 RIVERBASIN PERLIS CODE STATE EA 0SPTN 07 7)BT EU 2 BATU TEGUH 75(75) 10 SEPETANG 10 KERIAN PERAK 08 PERAK P. PINANG/ EA 4MRO 06 6)BKRAAG1 BAKARARANG 65(64) 10 MERBOK 04 KEDAH .PNN/0PPERAI 06P KEDAH P. PINANG/ Q TTOSWIRIVERSSTATUS WQI STATIONS WQR 2 AG/EAI 9 (4 DERALIK 69(64) 4 WANGI/DERALIK 12W 19 2RJ IA/67 (8 DERHAKA 73(68) 6 RAJAHITAM/ 12 3KEDAH 03 MANJONG LANGA TENGI T 87 7)AA HA 1 ANAKCHUAU 70(71) 28 07 7)KECHIL 76(75) 10 26 6)ARMLNA 1 AIRMELINTAS 63(66) 22 8 (9 TENGI 78(79) 2 9 (2 KEDAH 79(82) 6 UAGSMN 2 KUBANG SEMANG EUN AA 2 SELUANG BAWAH AAGTRP3 PADANG TERAP BA UI EA 1 BUKIT MERAH AAGNLI2 2 BATANG NILAI BATANG LABU IA AI 1 LIMAU MANIS O AAG2 TOK PAWANG RAJA HIT BERANANG EEAG3 SEPETANG T AJN 2 MANJONG NGULANG BONGKOK SERDANG SELUANG KOK MAK TEROLAK MERBOK PERALIT SELAMA ANG BENAR LANGA KERIAN JERNIH PERLIS JARUM KELADI CHUAU PETANI KOROK WANGI TUP TASOH LARUT KEREH BALAK KULIM JARAK MALAI SERAI PERAI TUP TEKAI BUAN JIJAN LIDIN PEDU BATU JANA SLIM LUI AH AI T M2 AM 1 2 1 2 2 8 1 2 1 1 1 2 1 4 1 1 2 1 1 1 2 1 1 1 1 1 1 2 3 1 1 1 2 6 2 1 1 1 1 1 1 6 1 4 2 1 3 3C 83 8P 58 4C 84 2S III III SP SP 62 76 7CII C 87 9CII C 89 8S III II II III SP C C SP 68 85 89 70 9PIV III III P SP SP 49 75 60 4S III SP 64 70 P 58 9S II SP 79 8S II III III SP SP SP 78 60 61 9CII C 89 0S II SP 80 9S II SP II III 79 SP SP 79 76 4CII III II II C SP C II C 84 71 88 C 82 81 3CII C 83 8PIII P 58 7S III SP 67 87 III SP 74 7S III II SP C 67 91 6S III SP 76 4S III SP 74 8S II SP 78 6S III SP 76 6CII II C C 86 81 8PIV P 38 1S III III SP SP II III 61 75 SP SP 80 74 6S III SP III 76 69 P 56 8PIII P III 58 P 54 1CII III C SP 81 61 4S III SP 64 7S II SP II 77 SP III 80 P 59 8PIII P 58 1PIV P 41 SP SP CII III III III III II II Table 4(b)Malaysia:Water QualityStatuswithinSlightlyPollutedRiverBasin,2004(Continued) JOHOR EAA2 MELAKA 22 MELAKA LINGGI LUKUT 21 20J SEMBILAN NEGERI TT OERVRBSNNME F OEAL IE NME FWIRVR CLASS RIVER WQI NUMBEROF RIVER OVERALL NUMBEROF RIVERBASIN CODE STATE Q TTOSWIRIVERSSTATUS WQI STATIONS WQR 8 RAMBAH TEBRAU 28G 28D 0 EIIKCL57 7)AA EIIKCL1 ANAKSEDILI KECIL 71(74) P 5 30C SEDILIKECIL 30B 8 OTA EI 5 (5 OTA EI 2 PONTIANKECIL 75(75) 2 SKUDAI PONTIANKECIL 28C 28B 7 I AO 7 (4 I AO 3 AIRBALOI 67(54) 3 BENUT AIRBALOI 27B 27A 8 OTA EA 8 (1 I IA 1 AIRHITAM 68(61) 5 PONTIANBESAR 28A 2ENDAU 32 4KSN/ELMU87 7)COOG2 CHOHONG 71(71) 8 26 DUYONG KESANG/MERLIMAU 24 23 0SEPANG 20 BA UPHT2 5 (5 AMRAN 75(75) 23 TU PAHAT ALOI 97 7)AS EBRN 2 A.S.SEMBERONG 78(79) 29 16 7)MELANA 65(70) 11 77 7)BGMLK 2 BTG.MELAKA 73(73) 17 1 BATANG PENAR 77(76) 15 2 4 (7 BENUT 74(77) 7 8 (7 LNOG1 RAMBAH PLENTONG 70(63) 68(77) 2 5 6 (2 DUYONG 76(72) 3 2 (4 SEPANG 72(74) 3 5 (4 LUKUT 75(74) 1 80 (82) UINTNGL1 DURIAN TUNGGAL IPN AA 2 SIMPANG KANAN OTA EA 3 PONTIAN BESAR PT UDRBSR1 KUNDUR BESAR IPN II3 SIMPANG KIRI YRMRH1 AYER MERAH EIIKCL2 SEDILI KECIL SEMBERONG EBRN 2 SEMBERONG AUPHT1 BATU PAHAT MENGKIBOL HMOG1 CHEMBONG AIYSI 2 . HAJIYASSIN L EU 1 ULU BENUT MERLIMAU EAOG1 KEPAYONG EEYH38 II C 82 3 SEMENYIH MELANT ICIG17 PII SP 77 1 RINCHING LENGGOR TEMIANG BERLIAN REMBAU DENGAR MELAKA KESANG JEBONG TEBRAU REMBIA TAMPIN SINGOL SKUDAI MERPO PAMOL T MAMAI MEREK ENDAU BAHAN CHAAH LINGGI AA 8S II SP 78 1 PAJAM PALOH LENGA BEKOK PEDAS PUTAT SIMIN PALOI LENIK AMOK AI 2 5 2 3 2 2 1 1 2 2 2 1 2 2 2 4 9 3 4 2 2 1 2 4 2 3 2 1 2 2 1 1 6 2 2 3 9 1 2 3 1 2CII C II C III II 89 C C 82 SP C 83 81 69 83 6CII C 86 9PIV P 39 7S II SP II 77 III III C SP SP 83 64 69 4CII II C C 84 82 2CII C 82 73 2CII II C SP 82 78 6S III III III SP II SP 66 P SP 74 55 78 4P 54 4S III SP II 74 II C C II C C 85 86 SP 82 87 80 9PIV P 49 9PIII P 59 II SP 79 3S III III III SP III SP SP 73 SP 67 II 67 63 III C SP 82 II 60 II III C SP P 87 II 77 59 SP 77 8PIII P 58 III SP 75 7CII III C SP 87 74 7PIV P 37 0S III SP 70 5S III SP 75 2S III SP III 72 SP III 76 SP III 71 SP 70 3CII II C II C 83 C 92 84 6S III SP 66 II C 85 3CII C 83 III SP 72 7CII C 87 5S III SP 75 5PIII P 55 SP III III II II II II pg.

29 MALAYSIA ENVIRONMENTAL QUALITY REPORT 2004 pg.

30 MALAYSIA ENVIRONMENTAL QUALITY REPORT 2004 Table 4(b)Malaysia:Water QualityStatuswithinSlightlyPollutedRiverBasin,2004(Continued) EEGAU3 EAA 07 8)CHERUL 79(81) 10 KEMAMAN 38 TERENGGANU AAA 1SRWK1 9 (0 KUAP SEMERAK 79(80) 78(78) 15 2 SARAWAK SEMERAK 51 47S SARAWAK KELANTAN AAG3/3PNIN38 8)PNIN28 II C 89 2 CLASS PONTIAN RIVER 80(80) WQI NUMBEROF 3 RIVER OVERALL PONTIAN NUMBEROF RIVERBASIN 32/33 PAHANG CODE STATE AA 6MOYOG 76 SABAH 1SSAMARAHAN 51BS Q TTOSWIRIVERSSTATUS WQI STATIONS WQR 9 CHUKAI 39C 2 LANDAS 42L 42I 53 54 6KATN1 9 (1 BELAT 79(81) 11 KUANTAN SERTING 36 35 9BLNIN27 8)BLNIN2 BALINGIAN 78(80) 2 KEMENA BALINGIAN MUKAH 61 KERIAN 59 58 57 55 64 66 7BARAM 67 0KLMAG57 7)INTAN 70(77) BANDAU 5 64(68) KALUMPANG 3 90 BINGKONGAN 79 85 IILTN 8 (6 ADONG 68(66) 7 MIRI/LUTONG SARIBAS LUP KAYA NIAH IBAI OYA AR 17 7)INANAM 79(79) 11 8 (9 CHUKAI 78(79) 5 7 2 LANDAS IBAI 71(60) 75(82) 2 3 0 (2 RIMBAS 80(82) 2 9 (8 MOKEK 79(78) 5 0 (1 KEMENA MUKAH OYA 80(81) 75(77) KERIAN 75(75) 3 79(81) 4 3 3 7 (3 NIAH 77(73) 5 6 (5 BARAM 76(75) 4 9 (4 MOUNAD 79(84) 1 7 (6 AAAA 2 SAMARAHAN 80 (82) 77 (76) AAA AA 1 SARAWAK KANAN AIGBSR1 GALING BESAR AAA II1 SARAWAK KIRI AIGKCL1 GALING KECIL AAGLK 1 PADANG LIKU EEGO 2 SEMENGGOH SANTUBONG AN II1 MAONG KIRI MENGGA EGAI 1 MENGGARIS EEAG1 SEKERANG EAAG1 SEPAYANG EAA 2 KEMAMAN EAIG2 PERASING SARAWAK KUANTAN SEKALOH SETERAP SARIBAS SERTING RANSAN TELIPOK LUTONG TABUAN TANDEK PINANG SEBLAK MOYOG NERAM RUANG UNDUP DALAM CHARU KENAU LUPAR LIKAS SIBIU RIAU IBOK MIRI AI A 2 TAL 2 2 3 1 6 1 1 4 1 1 1 1 2 2 1 2 1 1 1 1 1 3 1 3 1 3 3 2 2 2 1 2 2 2 2 4 2 2 1 3 2 1 1 4 3 1 1 1 4CII IV C P 84 48 4S III II SP C II 74 87 C 86 8CII C 88 C 86 0S II SP 80 8CII IV C P 88 III 47 SP 62 9CII II C II II III SP 89 SP II C 79 P 77 C 87 52 89 6S III SP 76 8CII II C C 88 82 6S III SP 66 9S II III II SP SP C 79 68 87 III SP 71 6CII C 86 9S III SP 69 0S II SP 80 82 63 9CII C 89 2CII C 92 7S II SP 77 III SP 75 5PIII P 55 1CII C 91 0S II III SP SP 80 75 3S III SP 73 9S III III SP SP 69 75 3CII C 83 9CII C 89 II C 87 3CII C 83 5S III II SP SP 75 78 5S III II SP SP 75 77 2CII C 82 2S III SP 72 3PIII P 53 1CII C 91 5S III SP 65 2CII C 82 8S II SP 78 2S III SP 62 6S III SP 76 5PV P 25 1CII C 81 9S II SP 79 4CII C II 84 C 87 SP CII III II Table 4(c)Malaysia:Water QualityStatuswithinPollutedRiverBasin,2004 WQIBASEDON6MAJORPARAMETERS: BOD,COD,SS,pH,DO,NH 1. NOTE: Table 4(b)Malaysia:Water QualityStatuswithinSlightlyPollutedRiverBasin,2004(Continued) NOTE: SELANGOR TT OERVRBSNNME F OEAL IE NME FWIRVR CLASS RIVER WQI NUMBEROF RIVER OVERALL NUMBEROF RIVERBASIN CODE STATE IAGJR 7PIV P IV 47 P 1 51 JURU 1 ARA CLASS 49(51) RIVER WQI 8 NUMBEROF RIVER JURU OVERALL NUMBEROF 06J RIVERBASIN PINANG PULAU CODE STATE OO 8SEGGET 28 JOHOR . OVERALLWQIFORRIVERBASINISCALCULATED BYAVERAGING WQIFROMALLSAMPLINGSTATIONS IN 5. 4. ()OverallWQIfor2003 RIVERCLASSBASEDONINWQS 3. RIVERWATER QUALITY STATUS: C:CLEAN,SP:SLIGHTLY POLLUTED,P:POLLUTED 2. OVERALLWQIFORRIVERBASINISCALCULATED BYAVERAGING WQIFROMALLSAMPLINGSTATIONS INEACHBASIN 5. ()OverallWQIfor2003 4. RIVERCLASSBASEDONINWQS 3. RIVERWATER QUALITYSTATUS: C:CLEAN,SP:SLIGHTLY POLLUTED,P:POLLUTED 2. 1. EACH BASINTHROUGHOUTTHEYEAR THROUGHOUT THEYEAR WQI BASEDON6MAJORPARAMETERS: BOD,COD,SS,pH,DO,NH 6PPINANG/KLUANG 06PP WQR Q TTOSWIRIVERSSTATUS WQI STATIONS WQR 9 A.PSRGDN 0 (7 BULUH 40(47) 5 KAW. PASIR GUDANG 29B 8 KEMPAS 28E 8 DANGA 28F 8KLANG BULOH 18 17 5KLBKN27 7)KLBKN2 KALABAKAN 78(78) 2 KALABAKAN 95 07 (TUKANG BA JEJA WI TU) TTOSWQI STATIONS 12 45 5)AMPANG 54(58) 24 5 8 (8 BULOH 48(58) 5 5 (2 DANGA KEMPAS 55(52) 45(44) 2 2 0 (4 SEGGET 50(54) 5 8 (0 CEMPEDAK 58 (60) AIR IT 46 (53) AGBRN 1 1 PANG BURONG2 PANG BURONG1 3 3 TUKANG BA AASR 3 DAMANSARA -N -N AUPN 2 KALUMPANG I EJN1 AIR TERJUN IAGUI2 KILANG UBI KERA JELUTONG ODN 3 DONDANG JUNJONG PENCALA PEREMBI GOMBAK JINJANG KLUANG RAMBAI PINANG KUYOH KEROH KLANG MASAI LA PASIR BATU JA TOH YONG WI AM U1 TU RIVERS STATUS 05 III P 52 10 5 1 12 3 1 1 3 1 3 2 1 1 1 1 1 5 1 1 1 1 1 2 2 5 1 47 1PIV P 41 67 1PIV III IV P II SP III P 41 C 60 P 47 87 52 0PIV III III III P SP P P IV 50 66 53 59 P 48 2PIII P 52 52 6CII C 86 2PIII IV P P 52 46 4PIV IV P P 44 46 4PIII IV P P 54 48 5PV IV III P P P 25 35 IV 57 III IV P P P 50 56 51 8S II SP 78 0PIV P 50 5PIII IV P P 55 45 9PV P 29 9PV SP PIV III P III pg.

31 MALAYSIA ENVIRONMENTAL QUALITY REPORT 2004 pg.

32 MALAYSIA ENVIRONMENTAL QUALITY REPORT 2004 Map 2aMalaysia:W ater QualityStatusforRiverBasinsofPeninsular, 2004 Map 2cMalaysia:Water QualityStatusforRiverBasinsofSabah,2004 Map 2bMalaysia:Water QualityStatusforRiverBasinsofSarawak,2004 pg.

33 MALAYSIA ENVIRONMENTAL QUALITY REPORT 2004

Chapter 2

RiverRiver WaterWater QualityQuality