Penelitian Terhadap Kualitas Air PDAM Kecamatan Tarakan Utara, Kota Tarakan Dilaksanakan Mulai Bulan Maret - Agustus 2011. Metode Penelitian Yang Digunakan Adalah Penelitian Survey Dengan Format Deskriptif. Tujuan Penelitian Ini Adalah Untuk Mengetahui Tingkat Kelayakan Air PDAM Kecamatan Tarakan Utara Berdasarkan Peraturan Menteri Kesehatan Republik Indonesia Nomor 492/2010.
Uji Beberapa Parameter Dilaksanakan Di Lapangan Dan Parameter Lainnya Dilaksanakan Di Laboratorium Kualitas Air Universitas Borneo Tarakan. Penelitian Ini Meliputi Parmeter Fisik (Bau, Warna, Kekeruhan, Rasa Dan Suhu); Parameter Kimia Meliputi (Nitrat, Amonia, Kesadahan, Sulfat, Klorida, Besi Dan PH); Dan Parameter Biologi (Bakteri Coli).
Hasil Analisa Terhadap Kualitas Air PDAM Tarakan Utara Yang Meliputi Parameter Fisik, Kimia, Dan Biologi Menunjukkan Hasil Yang Bervariasi Dan Memenuhi Persyaratan Kualitas Air Berdasarkan Peraturan Menteri Kesehatan RI Nomor 492/2010.
Kata Kunci: Kualitas Air PDAM Tarakan Utara, Uji Fisik, Kimia, Dan Biologi

The Research Of The Water Quality Of Drinking Water Local Company (PDAM) In North Tarakan District, Tarakan City Was Conducted From March To August 2011. Survey With Descriptive Format Were Used In This Research. The Purpose Of This Research Was To Determine The Eligibility Level Of Drinking Water Local Company (PDAM) In North Tarakan District Based On The Minister Of Health Of The Republic Of Indonesia’s Regulation Number 492/2010. The Tests Were Implemented In The Field And In The Water Quality Laboratory, Borneo University, Tarakan. The Research Covered Physcal Parameter (Odor, Color, Turbidity, Taste And Temperature); Chemical Parameter (Nitrate, Ammonia, Hardness, Chloride, Sulphate, Iron And PH); And Biological Parameter (Coli Bacteria). The Analysis Results Of The Water Quality Of Drinking Water Local Company (PDAM) In North Tarakan District Which Covered Physical, Chemical, And Biological Parameters Showed Various Results. However They’re All Fulfill The Requarements Of Good Drinking Water Quality Based On The Minister Of Health Of The Republic Of Indonesia’s Regulation Number 492/2010. Keyword: Water Quality, Physical Test, Chemical Test And Biological Test