ABSTRAK Air minum isi ulang (AMIU) yang diproduksi oleh Depot Air Minum

Groundwater is the main water resource especially for daily water needs.  Population growth and urbanization have increased demand for water while the availability of groundwater has decreased both in quality and quantity. Various human activities also produce industrial, agriculture and municipal waste that can pollute groundwater through leaching process. The purposes of this study are to determine the quality of groundwater around tofu industrial factory and its evaluation for drinking water based on Health Minister Regulation No.492/MENKES/PER/IV/2010 and Government Regulation No.82 2001.The temperature, pH, total dissolved solids (TDS) and electrical conductivity (EC) were measured by using YSI-Pro. Chemical Oxygen Demand (COD) and Biochemical Oxygen Demand (BOD) were measured based on SNI 06-6989.2.2009 test method and SNI 06-698.72.2009 test method, respectively. Physically, groundwater had temperature average 28,60C, TDS 243 mg/L and EC 396 µS/cm. Almost all groundwater were acidic with pH average 5,6 and did not meet the drinking water quality requirements. Groundwater had COD average 78 mg/L, BOD average 36 mg/L and it were classified into moderate-heavy pollution. It indicated that groundwater may have been contaminated by organic material from tofu industrial wastewater. Therefore, groundwater should not be used as a source of drinking water.

<p><em>Air tanah merupakan komponen dari suatu siklus hidrologi yang melibatkan banyak aspek bio-geo-fisik, bahkan aspek politik dan sosial budaya yang sangat menentukan keterdapatan air tanah di suatu daerah. Kualitas air tanah sangat penting artinya bagi kehidupan makhluk hidup. Kualitas air, yang mencakup keadaan fisik, kimia dan biologi dapat mempengaruhi ketersediaan air untuk kebutuhan manusia, pertanian, industri, dan pemanfaatan lainnya. Tujuan penelitian ini adalah untuk menganalisis kualitas air tanah di Kecamatan Kubu Babussalam, Kabupaten Rokan Hilir, Provinsi Riau yang ditinjau dari kualitas warna, pH dan kadar Fe. Pengambilan sampel menggunakan teknik random sampling. Sebagian besar sampel air tanah berwarna kuning kecoklatan dan 4 sampel air tanah memiliki pH dibawah batas minimum baku mutu berdasarkan  Permenkes 416/MEN.KES/PER/IX/1990. Hanya 4 sampel yang memiliki kadar Fe yang memenuhi baku mutu. pH terendah sampel air tanah sebesar 3,8  dan kadar Fe tertinggi sebesar 2.21 mg/L</em></p><p><em><br /></em></p><p><em>Groundwater is component of a hydrological cycle that involves many aspects of bio-geo-physical, even political and socio-cultural aspects that greatly determine the availability of groundwater in an area. The quality of groundwater is very important for the life of living things. Water quality, which includes physical, chemical and biological conditions can be affect the availability of water for human, agricultural, industrial and other uses. The aim of this study was to analyze the quality of groundwater in Kubu Babussalam District, Rokan Hilir Regency, Riau Province in terms of color quality, pH and Fe content. Sampling used random sampling technique. Most of the groundwater samples were brownish yellow and 4 groundwater samples had pH below the minimum quality standard based on Permenkes 416/MEN.KES/PER/IX/1990. Only 4 samples have Fe content that meets the quality standard. The lowest pH of groundwater sample was 3.8 and the highest Fe content was 2.21 mg / L.</em></p><p><em><br /></em></p>

Groundwater is water resource that widely used for domestic purposes, including for drinking. However, the industrial and population growth causes the quality and quantity of groundwater to decline. In this case, the quality of drinking water in Indonesia must meet the requirements according to Health Minister Regulation No.492/MENKES/PER/IV/2010. This study aims are to determine the quality of groundwater in the research area based on physicochemical parameters and its evaluation for drinking water. Groundwater samples were taken from dug wells in Teluk Nilap area, Rokan Hilir, Riau. Groundwater samples have temperature average 30oC, TDS average 312,5 mg/L and pH average 5,6. Groundwater contain sulfate and nitrate with average value 48,8 mg/L and 11,86 mg/L, respectively. Groundwater water also have iron and lead metal above the permitted standard with average value 2,57 mg/L and 0,022 mg/L. Groundwater in the study is not recommended as drinking water.

<p class="abstract"><em>Water is a material that can not be separated from the life activities of living things on earth. One of the water resources that gets the most attention and the most needed is ground water. Ground water is a hydrological cycle that involves several aspects such as bio-geo-physical and socio-cultural.</em> <em>Heavy metals are pollutants that are most often found in water. This heavy metal has a negative impact on humans who use the water and organisms that are in the water. The purpose of this study was to analyze the content of heavy metals contained in ground water in the District of Kubu Babussalam, Rokan Hilir, Riau. Sampling using random sampling technique. Ground water in Kubu Babussalam Subdistrict has been contaminated by heavy metals such as lead (Pb), copper (Cu), iron (Fe), cadmium (Cd) and chromium (Cr). The Pb content contained in ground water ranges from 0,01-0,06 mg/L, Fe ranges from 1,3-2,2 mg/L while the content of the other three metals still very little and were carried under the LOQ value of the measuring instrument used.</em> <em>Based on Permenkes 416/MEN.KES/PER/IX/1990, there was one sample point that had Pb metal content above the quality standard, and there were seven sample points that had Fe metal content above the quality standard.</em></p><p><strong><em> </em></strong></p>