scholarly journals Kajian Kualitas Air Laut dan Indeks Pencemaran Berdasarkan Parameter Fisika-Kimia di Perairan Distrik Depapre, Jayapura

2018 ◽  
Vol 16 (1) ◽  
pp. 35 ◽  
Author(s):  
Baigo Hamuna ◽  
Rosye H.R. Tanjung ◽  
Suwito Suwito ◽  
Hendra Kurniawan Maury ◽  
Alianto Alianto
Keyword(s):  
Water Quality ◽  
Pollution Index ◽  
Quality Standards ◽  
Water Quality Standards ◽  
Chemical Parameters ◽  
Physical Chemical ◽  
The Status ◽  
Total Ammonia ◽  
Water Quality Status

ABSTRAKKondisi kualitas air suatu perairan yang baik sangat penting untuk mendukung kelulushidupan organisme yang hidup di dalamnya. Penentuan status mutu air perlu dilakukan sebagai acuan dalam melakukan pemantauan pencemaran kualitas air. Penelitian ini bertujuan untuk mengkaji status mutu air dan menentukan indeks pencemaran berdasarkan parameter fisika-kimia di perairan Distrik Depapre, Kabupaten Jayapura. Pengambilan sampel kualitas air dilakukan pada bulan Oktober 2017 di lima stasiun penelitian, kemudian hasilnya dibandingkan dengan baku mutu air laut untuk biota laut berdasarkan KEPMEN-LH No. 51 Tahun 2004. Hasil penelitian menunjukkan bahwa parameter yang masih sesuai baku mutu antara lain suhu, salinitas, sulfida dan kecerahan perairan, sedangkan parameter yang telah melampaui baku mutu antara lain pH, ammonia total, nitrat dan fosfat. Berdasarkan hasil perhitungan indeks pencemaran menunjukkan bahwa perairan Distrik Depapre berada dalam kategori tercemar ringan hingga tercemar sedang.Kata kunci: Baku Mutu, Indeks Pencemaran, Kualitas Air, Parameter Fisika-Kimia, Distrik DepapreABSTRACTGood water quality is extremely important to support life of organisms. The determination of water quality status was needed as reference to monitor water pollution. This study aimed to assess the status of water quality and determine pollution index based on physical-chemical parameters in the Depapre District waters, Jayapura Regency. Sampling was carried out in October 2017 across five research stations, then the results were compared with water quality standards based on KEPMEN-LH No. 51 Tahun 2004 for marine biotas. The results showed that the parameters in according to the quality standards are temperature, salinity, sulphide and water transparency, while those that have exceeded the quality standards are pH, total ammonia, nitrate and phosphate. Based on the calculation of pollution index indicates that the Depapre District waters was in light pollution to medium categories.Keywords: Depapre District, Physical-Chemical Parameters, Pollution Index, Standards, Water QualityCitation: Hamuna, B., Tanjung, H.H.R, Suwito and Maury H.K. (2018).Kajian Kualitas Air Laut dan Indeks Pencemaran Berdasarkan Parameter Fisika-Kimia Di Perairan Distrik Depapre, Jayapura. Judul. Jurnal Ilmu Lingkungan, 16(1), 35-43, doi:10.14710/jil.16.135-43

scholarly journals Indeks Pencemaran Muara Sungai Jodoh, Kota Batam

2020 ◽  
Vol 9 (2) ◽  
pp. 119-130
Author(s):  
R. M. Rachmad Rizal Akbar ◽  
Winny Retna Melani ◽  
Tri Apriadi
Keyword(s):  
Water Quality ◽  
Sampling Method ◽  
River Estuary ◽  
Quality Standards ◽  
Coliform Bacteria ◽  
Water Quality Standards ◽  
Purposive Sampling ◽  
Water Quality Status ◽  
Quality Status

ABSTRAK : Penentuan status mutu perairan perlu dilakukan sebagai acuan dalam melakukan pemantauan pencemaran kualitas air. Penelitian ini bertujuan untuk mengetahui tingkat pencemaran melalui nilai Indeks Pencemaran (IP) di perairan Muara Sungai Jodoh, Kota Batam. Lokasi pengambilan sampel berdasarkan metode purposive sampling di tujuh stasiun pada perairan Muara Sungai Jodoh Kelurahan Tanjung Uma Kota Batam. Parameter yang digunakan pada penelitian ini yaitu suhu, TSS, pH, DO, BOD, salinitas, dan bakteri coliform. Sebagai pembanding, digunakan baku mutu air laut untuk biota laut berdasarkan KEPMEN LH No.51 Tahun 2004. Perhitungan nilai IP dilakukan mengacu pada Keputusan Menteri Lingkungan Hidup Nomor 115 Tahun 2003 Tentang Penentuan Status Mutu Air. Berdasarkan hasil penelitian diketahui bahwa perairan muara Sungai Jodoh Kelurahan Tanjung Uma Kota Batam pada saat pasang maupun surut kualitas perairan tergolong tercemar ringan.  ABSTRACT : The determination of water quality status needs to be done as a reference to monitor water pollution. This study aimed to determine the level of pollutions through the level of Index Pollution (IP) in Jodoh River estuary, Tanjung Uma, Batam City . The location of sampling based on purposive sampling method of seven station in the waters of Jodoh River, Tanjung Uma, Batam City. Physical chemichal parameters used in this study were temperature, TSS, pH, DO, BOD, salinity and coliform bacteria. The water quality results were compared with water quality standards based on KEPMEN LH No.51 2004 for marine biotas. IP calculation was reference to the Minister of Environment No.115 2003 concerning on determination of water quality status. Based on the results of this study showed the estuary waters in the Jodoh River, Tanjung Uma, Batam City, when at high and low tide the water quality were slightly polluted.

scholarly journals Konsentrasi Surfaktan dan Minyak di Perairan Depapre, Kabupaten Jayapura, Provinsi Papua

2019 ◽  
Vol 8 (1) ◽  
pp. 49
Author(s):  
Rosye Hefmi Rechnelty Tanjung ◽  
Baigo Hamuna ◽  
Alianto Alianto
Keyword(s):  
Water Pollution ◽  
Water Quality ◽  
Quality Standards ◽  
Water Quality Standards ◽  
Oil Concentration ◽  
Water Quality Status ◽  
The Government ◽  
Quality Status ◽  
Rule Out

Kondisi kualitas air suatu perairan yang baik sangat penting untuk mendukung kehidupan organisme yang hidup di dalamnya. Penentuan status mutu air perlu dilakukan sebagai acuan dalam melakukan pemantauan pencemaran kualitas air. Penelitian ini bertujuan untuk mengkaji status mutu air laut berdasarkan konsentrasi parameter surfaktan dan minyak di perairan Distrik Depapre, Kabupaten Jayapura. Pengambilan sampel air laut dilakukan di lima stasiun penelitian, kemudian hasilnya dibandingkan dengan baku mutu air laut untuk biota laut berdasarkan KEPMEN-LH No. 51 Tahun 2004. Hasil penelitian menunjukkan bahwa konsentrasi surfaktan di perairan Distrik Depapre berkisar antara 0,08–0,22 mg/L, sedangkan konsentrasi kandungan minyak berkisar antara 0,14–0,41 mg/L. Berdasarkan baku mutu air laut, konsentrasi surfaktan dan minyak belum melampaui baku mutu dan masih sesuai untuk biota laut di perairan Depapre, Kabupaten Jayapura. Hasil penelitian ini memberikan informasi bahwa kondisi perairan Depapre belum tercemar oleh limbah surfaktan dan minyak. Namun tidak menutup kemungkinan bahwa konsentrasi tersebut dapat terus meningkat, sehingga perlu upaya lebih lanjut dari pemerintah dan masyarakat untuk meminimalkan jumlah limbah surfaktan dan minyak yang masuk kelingkungan perairan laut. Good water quality is critical to support the life of organisms. The determination of water quality status was needed as a reference to monitor water pollution. This study aimed to assess the condition of water quality based on the concentration of surfactant and oil parameters in the Depapre waters, Jayapura Regency. Sampling was carried out in five research stations; then the results were compared with water quality standards based on KEPMEN-LH No. 51 Tahun 2004 for marine biotas. The result showed that the concentration of surfactant in Depapre waters was 0.08–0.22 mg/L, while the oil concentration was 0.14–0.41 mg/L. Based on water quality standards, surfactant and oil concentration has not exceeded the quality standards and are suitable for marine biotas in Depapre waters, Jayapura Regency. Results showed the condition of  Depapre waters had not been polluted by surfactant and oil waste. However, it does not rule out the possibility that the concentration can increase so that it needs further efforts from the government and the community to minimize the amount of surfactant and oil waste entering the marine environment.

scholarly journals KONSENTRASI AMONIAK, NITRAT DAN FOSFAT DI PERAIRAN DISTRIK DEPAPRE, KABUPATEN JAYAPURA

2018 ◽  
Vol 14 (1) ◽  
pp. 8 ◽  
Author(s):  
Baigo Hamuna ◽  
Rosye H. R. Tanjung ◽  
Suwito Suwito ◽  
Hendra Kurniawan Maury
Keyword(s):  
Water Quality ◽  
Quality Standards ◽  
Quality Standard ◽  
Phosphate Concentration ◽  
Phosphate Content ◽  
Water Quality Standards ◽  
Ammonia Content ◽  
Water Quality Status ◽  
Quality Status

The determination of water quality status was needed as a reference to monitor water pollution. The purpose of this study was to determine the concentration of ammonia, nitrate, and phosphate in Depapre waters, Jayapura Regency. Sampling was carried out in October 2017 across five research stations, then the results were compared with water quality standards based on KEPMEN-LH No. 51 Tahun 2004 for marine biotas. Based on the analysis of water quality in Depapre waters obtained the following results are the ammonia content ranges from 0.8 to 11.6 mg/L, the content of nitrate ranged from 0.009 to 0.54 mg/L, and the phosphate content ranged from 0.016 to 1.19 mg/L. These results indicate that the ammonia, nitrate and phosphate concentration in Depapre Waters have exceeded the water quality standard. The concentration of ammonia, nitrate, and phosphate is high enough and endanger the lives of marine biotas.

scholarly journals STATUS MUTU AIR SUNGAI AYUNG BERDASARKAN DATA PEMANTAUAN KUALITAS AIR TAHUN 2014-2018

2020 ◽  
Vol 14 (2) ◽  
pp. 143
Author(s):  
I Made Sara Wijana ◽  
Ni Made Ernawati ◽  
Abd Rahman As-syakur
Keyword(s):  
Water Quality ◽  
River Water ◽  
Secondary Data ◽  
Quality Standards ◽  
Environmental Damage ◽  
Water Quality Standards ◽  
The Status ◽  
Water Quality Status ◽  
Quality Status

It is very important to know the status of river water quality, in order to determine the direction of resource management which is decreasing in quality according to its allocation. Analysis of the status of the water quality of the Ayung River in Bali Province using secondary data in the form of data on illness results from 2014 to 2018. The number of parameters applied to the fire is 16 parameters with class II water quality standards referring to attachment XII of Bali Governor Regulation No. 16 of 2016 concerning Environmental Quality Standards and Environmental Damage Standard Criteria. The analysis used the Storetic Method (Decree of the Minister of Environment Number 115 of 2003). The results of the analysis show that the status of Ayung River water is at very good, good and moderate levels. The status of the Ayung River's air quality tends to decline from year to year and from upstream to downstream. Status determining parameters are: BOD5, phosphate, phenol, detergent and sulfide. Key words: water quality status; ayung river; storet.

scholarly journals Status Baku Mutu Air Laut untuk Kehidupan Biota dan Indeks Pencemaran Perairan di Pesisir Cirebon pada Musim Kemarau [Water Quality Standards for Marine Life and Pollution Index in Cirebon Coastal Area in the Dry Season]

2019 ◽  
Vol 6 (2) ◽  
pp. 149
Author(s):  
Nasir Sudirman, Semeidi Husrin
Keyword(s):  
Water Quality ◽  
Pollution Index ◽  
Quality Standards ◽  
Dry Season ◽  
Sediment Supply ◽  
Water Quality Standards ◽  
Oxygen Conductivity ◽  
Marine Life ◽  
High Turbidity

Abstract Coastal land that is adjacent to the sea are still is influenced by the tide. Cirebon coast generally have ramps and high turbidity due to sediment supply and waste from the river that empties into the sea. Cirebon coast is divided into two areas, namely governance City of cirebon and Regency of cirebon. Coastal conditions closely related to river, estuaries, and the ocean in the region, the changing nature of the river caused by human activities will affect the water quality and coastal environment. Environmental pollution occurs mainly in the fisherman areas and industry. Determination of contamination status was determined using the pollution index according to equation 1 Sumiotomo and Nerow (1970) in the Minister of the Environment decree No. 115 of 2003 on Guidelines for Determination of Water Quality Status. Criteria for determining the level of water quality based on water quality standards for marine life by the Minister of Environment Decree No. 51 of 2004. The methods of research is done by the measuring of pH, dissolved oxygen, conductivity, turbidity, temperature, salinity, organic matter using Water quality Cheker along the coast cirebon within 500m - 1Km from the beach in June as a representation of the dry season. The results of the analysis addressed that in the dry season there are 10stations lightly polluted, 6 stationsare being polluted and heavily polluted 4 station.

scholarly journals STUDI KUALITAS AIR TANAH DANGKAL DAN PENDAPAT MASYARAKAT SEKITAR TEMPAT PEMROSESAN AKHIR SAMPAH SUWUNG KECAMATAN DENPASAR SELATAN, KOTA DENPASAR

2016 ◽  
Vol 10 (1) ◽  
pp. 62
Author(s):  
I. W. Agus Eka Subrata Jaya ◽  
I Wayan Suarna ◽  
I Wayan Redi Aryanta
Keyword(s):  
Water Quality ◽  
Shallow Groundwater ◽  
Pollution Index ◽  
Quality Standards ◽  
Water Quality Standards ◽  
Water Pollution Index ◽  
The Public ◽  
Water Wells ◽  
Dug Wells

Research has been conducted to determine the quality of shallow groundwater (dug-wells and shallow bore-wells) and the local communities opinions around the landfill Suwung. The method of determining the station was done by purposive sampling, where the station sampling was determined by selecting a place which was expected to represent the whole area.Water sampling of dug-wells was conducted by using a water sampler and the shallow bore-wells using a 2-liter bottle. Data was analyzed by descriptive comparative referenceto class I water quality of the Bali Governor Regulation No.8 of 2007. The public opinion data was obtained by using aquesioner filled by respondents who have and use wells and shallow bore wells for their daily needsand it was analyzed by using frequency distribution tables.The results showed that the quality of shallow groundwater (dug-wells and shallow bore-wells) did not meet water quality standards in accordance with the rules of the class defined in the Governor of Bali Regulation No. 8 of 2007. The water pollution index (PI) of dug-wells at a distance of 1-400 meters was in hearily polluted category, while water fromshallow bore-wells drilled at a distance of 1-200 meters was in the category of hearily polluted and at a distance of 201-400 meters was in the category of medium polluted.There was an increasing range of groundwater quality deterioration in 1997, 2008 and 2014. In 1997, contaminated shallow groundwater has occured at a distance of 80 meters, while in 2008, the pollution has occurred up to a distance of 375 meters and in the year of 2014 the contamination occurred from a distance of 1 meter to 400 meters. The average of score Pollution Index (PI) of Water wells in the year of 2008 amounted to 14.55, while in 2014 up to 15.44. It is estimated that the water quality of dug-wells and bore-wells will meet the quality standards in accordance with the value of the pollution index at a distance of over 5000 meters and 750 meters of the Suwung landfill waste.Most of the respondents who live in the vicinity Suwung landfill waste tend to give an opinion that the shallow groundwater (dug-wells and shallow bore-wells) has decreased quality as drinking water. Approximately 75% of respondents thought that the well water in their environment has been reduced in quality.

scholarly journals IDENTIFIKASI KUALITAS MATA AIR SEBAGAI SUMBER AIR MINUM TANPA PENGOLAHAN DI DESA KUKUH, KECAMATAN MARGA, KABUPATEN TABANAN, BALI, TAHUN 2018

2018 ◽  
Vol 5 (1) ◽  
pp. 138-146
Author(s):  
Ni Luh Nova Dilisca Dwi Putri ◽  
Nyoman Sudarma ◽  
Diah Prihatiningsih
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Quality Standards ◽  
Drinking Water Quality ◽  
Water Quality Standards ◽  
Chemical Parameters ◽  
Microbiological Parameters ◽  
The Village ◽  
Bacteriological Parameters

Pendahuluan : Air merupakan sumber daya alam yang dilukan untuk hajat hidup orang banyak (Efendi, 2003). Berdasarkan . Men. Kes. No. 492/MENKES//IV/2010, bahwa air minum adalah air yang melalui proses pengolahan atau tanpa pengolahan memenuhi syarat kesehatan dapat langsung diminum. Desa Kukuh, Kecamatan Marga, Kabupaten Tabanan terbagi menjadi 8 banjar dinas, salah satunya adalah banjar dinas Tatag yang menjadi pusat dalam pemanfaatan sumber mata air minum pada wilayah desa tersebut. Metode: Jenis penelitian yang digunakan adalah penelitian deskriptif tentang uji kelayakan kualitas air berdasarkan parameter kimia dan mikrobiologi dari sumber mata air di Desa Kukuh, Kecamatan Marga, Kabupaten Tabanan. Hasil: Hasil identifikasi kelayakan kualitas air minum yang telah dilakukan sebanyak tiga kali pengujian, yaitu pada bulan (Mei, Juli, September) pada tahun 2018 memberikan hasil: a). Pemeriksaan parameter kimia menunjukkan bahwa seluruh parameter yang diujikan berada pada standar yang dibolehkan, sedangkan b). Pemeriksaan parameter mikrobiologi menunjukkan hasil adanya kandungan bakteri Fecal coli pada sampel mata air dengan jumlah rata-rata 100 Fecal coli/100 mL. Diskusi : Berdasarkan hasil identifikasi pada parameter kimia menunjukkan bahwa hasil identifikasi parameter kimia telah sesuai dengan standar kualitas air minum, sedangkan parameter mikrobiologi belum memenuhi standar kualitas air minum disebabkan adanya kandungan bakteri Fecal coli pada sampel mata air dengan jumlah rata-rata  100 Fecal coli/100 mL. Kata Kunci : Kualitas mata air, Parameter Kimia, Parameter Mikrobiologi.   ABSTRACT Introduction: Water is a natural resource needed for the livelihood of many people. Drinking water is water with or without processing that meet health requirements and can be drunk directly, this is based on . Men Kes No. 492/MENKES//IV/2010. Kukuh Village, Marga District, Tabanan Regency is divided into 8 banjar dinas, one of which is the Banjar Tagtag, which is the center of the utilization of drinking water sources in the village area. Method: The type of research used is a descriptive study of the feasibility of water quality based on chemical and microbiological parameters on water from a spring source in Kukuh Village, Marga District, Tabanan Regency. Results: The results of the identification of the feasibility of drinking water quality that has been carried out three times tn the month of May, July, and September. The results of the identification of chemical and microbiological parameters were  : a). Chemical parameters, showed that all identified parameters are at the missible level. c). Microbiological parameters showed the results of Fecal coli contents in spring samples with and an average number of 100 Fecal coli/100 mL. Discussion: The results of the identification of chemical and microbiological parameters indicated that the identification of chemical parameters were in accordance with drinking water quality standards, while the microbiological parameters did not meet drinking water quality standards, because in the water sample there was the content of Fecal coli bacteria in the spring samples with and average number of 100 Fecal coli/100 mL. Keywords : Quality of Springs, Chemical Parameters, Bacteriological Parameters

scholarly journals Identification of the Main Water Quality Parameters for Monitoring and Evaluating Watershed Health

2020 ◽  
Vol 52 (2) ◽  
pp. 227
Author(s):  
Pranatasari Dyah Susanti ◽  
Nining Wahyuningrum
Keyword(s):  
Water Quality ◽  
Government Regulation ◽  
Pollution Index ◽  
Monitoring And Evaluation ◽  
Quality Standards ◽  
Quality Parameters ◽  
Class Iii ◽  
Water Quality Standards ◽  
Pollution Levels ◽  
Phosphate Nitrate

Water quality is one of the crucial parameters in monitoring and evaluating watersheds. A large number of parameters causes the monitoring and evaluation of watershed performance to be less efficient and costly. This study aims to determine the main parameters as a method of simplifying water quality observation parameters by producing equations that can be used to predict the level of pollution of a non-point source pollutant (watershed). A sampling of surface water was carried out by purposive sampling at several outlets located in the Brantas and Upper Solo watersheds. The research parameters analysed were: TSS, TDS, BOD, COD, Phenol, Free Chlorineine, Sulfide, Arsenic, Fe, Pb, Phosphate, Nitrate, Nitrite, Detergent, Turbidity and E. Coli. The results of the analysis of water quality are used to calculate the value of the Pollution Index (PI) according to the Decree of the Minister of Environment No. 115 of 2003 and to determine the class of water quality standards that refer to Class III water quality standards, in Government Regulation No.82 of 2001. The analysis showed that all samples were at mild to moderate pollution levels, and did not meet class III water quality standards. Multiple regression analysis produced two equations, namely: Model 1: PI = 3.952 + 91.668 Phenol and Model 2: PI = 3.086 + 80.167 Phenol + 0.152 BOD, with R squared values of 53% and 69.9% with a confidence level of 0.005. Thus the prediction of pollution levels of similar watershed can be made only by using the two most influential parameters namely phenol and/or BOD alone.   

scholarly journals Penentuan Kondisi Kualitas Perairan Muara Sungai Somber, Balikpapan, Kalimantan Timur dengan Metode Indeks Pencemaran (Pollution Index)

2020 ◽  
Vol 4 (2) ◽  
pp. 23-34
Author(s):  
Marita Wulandari ◽  
Muhammad Ma’arij Harfadli ◽  
Rahmania Rahmania
Keyword(s):  
Water Quality ◽  
Pollution Index ◽  
Easy Access ◽  
Small Rivers ◽  
Chemical Parameters ◽  
Index Method ◽  
Physical And Chemical Parameters ◽  
Water Quality Status ◽  
Physical And Chemical ◽  
Quality Status

Balikpapan bay has an important and strategic role, such as a buffer for sustainability of the estuary function as the Balikpapan seaport. In Balikpapan esuary watershed there are large and small rivers, including Somber River. Settlements and industries around the river banks have caused a decrease of river water quality, especially activities that place pollutant loads (waste) on the river bodies. This research is focused on physical and chemical parameters, including Total Dissolved Solid (TDS), temperature, pH, and DO (Dissolved Oxygen).Water quality research was conducted by dividing the river into 7 measurment points. The distribution of measurement points was based on water quality considerations that represent upstream, middle, and downstream water quality, as well as considering easy access. Water samples at each mesurment point ware collected at three different depths (vertically). Concentrations of several parameters that have been obtained were then analyzed using the Pollution Index method (Pollution Index) which is used to determine relative pollutant levels to the allowed water quality parameters. The testing procedure by pollution index refers to procedure poured in the Decree of the State Minister for the Environment No. 115 in 2003 concerning of Determining Guidelines of Water Quality Status. Based on the field measurments, an average value for temperatures obtained ranging from 30.0 - 32.1 ° C, TDS values ​​4270 mg / L - 10000 mg / L, DO ranges between 1.8 mg / L - 3.1 mg / L, and pH values ​​between 6.6 - 7.1. From the calculation and data analisys of physical and chemical parameters, the research can be concluded that the location of measurement point 1 shows water quality status being lightly polluted, while point 2,3,4,5,6, and 7 shows water quality status being moderately polluted. Keywords: Water quality, estuary, Somber river, pollution index

scholarly journals Physical, chemical and microbiological analysis of bottled water in Pokhara, Nepal

2020 ◽  
Vol 10 (2) ◽  
pp. 25-28
Author(s):  
Manisha Maskey ◽  
Laxminarasimha Sharma Annavarapu ◽  
Tista Prasai ◽  
Dharma Raj Bhatta
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Coefficient Of Variation ◽  
Monsoon Season ◽  
Quality Standards ◽  
Bottled Water ◽  
Water Quality Standards ◽  
Bottled Drinking Water ◽  
Physical Chemical

Background: Today possibility of rendering water non-potable by various types of contaminants (physical, chemical and biological) is of considerable importance. It is not only the microbial con­taminants but also the physical and chemical contaminants, playing an important role in compro­mising our health in many ways. The aim of this study was to assess the physical, chemical and the microbiological quality of commercially produced bottled water in Pokhara city. Methods: A study was conducted to assess the quality of bottled drinking water produced in Pokhara city. Total of 21 brands of bottled water was collected, first batch in monsoon season and second batch in pre-monsoon season, from the market. The physical, chemical and microbial as­sessment was carried out as per National Drinking Water Quality Standards, 2062. Coefficient of variation and t-test were applied where applicable. Results: Better water quality was found in Pre-monsoon season than that of monsoon season, in regard to microbial assessment. None of the samples in first batch tested positive for coliform whereas in second batch 38.2% of samples tested positive for coliform. Coefficient of variation for pH and chloride content was, 8.9% and 6.1%, 35.6% and24.19%, in pre-monsoon and monsoon season respectively. Both were found to be statistically significant. While other tested parameters were within normal limits. Conclusions: The quality bottled drinking water available for sale do not meet the standards given by National Drinking Water Quality Standards, particularly the microbial quality.

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