ABSTRAK
PT Candi Loka merupakan salah satu perusahaan swasta di Kabupaten
Ngawi, Jawa Timur yang bergerak dalam pembuatan air minum kemasan. Air
yang digunakan sebagai bahan baku air minum berasal dari sumber mata air yang
dikenal dengan nama Sumber Lanang. Tujuan dari penelitian ini adalah
membandingkan kualitas air Sumber Lanang dan air minum produksi PT Candi
Loka di Jamus Ngawi Jawa Timur berdsarkan cemaran koliform, nilai angka
lempeng total, serta konsentrasi nitrat dan nitrit. Dan untuk mengetahui apakah
cemaran koliform, nilai angka lempeng total, serta konsentrasi nitrat dan nitrit
pada air dari mata air Sumber Lanang dan air minum produksi PT Candi Loka di
Jamus Ngawi Jawa Timur sesuai dengan persyaratan yang berlaku yaitu SNI 01-
3553-2006 dan Permenkes No. 492/2010.
Pengujian koliform menggunakan metode MPN yaitu perhitungan bakteri
dengan menggunakan variasi jumlah tabung. Uji angka lempeng total (ALT) yaitu
untuk menentukan jumlah mikroorganime aerob maupun anaerob dengan
menggunakan metode plate count agar (PCA). Pengujian nitrat dan nitrit
menggunakan metode spektrofotometri.
Hasil penelitian menunjukkan air yang berasal dari Sumber Lanang
memiliki nilai MPN 0/100ml sampel, nilai ALT 2, konsentrasi Nitrat 0,5047mg/l,
dan konsentrasi Nitrit 0 mg/l. Air minum hasil produksi PT Candi Loka yaitu
memiliki nilai MPN 5/100 sampel, nilai ALT 103, Konsentrasi Nitrat sebanyak
0,7642 mg/l, serta konsentrasi Nitrit 0,001 mg/l. dengan demikian Cemaran
Koliform, nilai ALT, konsentrasi Nitrat dan Nitrit pada air dari Sumber Lanang
lebih baik dan sesuai baku mutu air minum SNI 01-3553-2006 dan Permenkes
No.492/2010 dibandingkan air minum hasil Produksi PT Candi Loka di Jamus
Ngawi Jawa Timur.
Kata kunci : Kualitas Air Sumber Lanang, PT Candi Loka Jamus, Koliform dan
Angka Lempeng Total, Nitrat dan Nitrit
ABSTRACT
Candi Loka company is one of private company in Ngawi District, East
Java which provide drinking water production. Water which Candi Loka company
used as a raw material originated come from spring water which known as
Sumber Lanang. The purpose of this research is to compare quality of Sumber
Lanang Spring water with drinking water which produced by Candi Loka
company in Jamus, Ngawi, East Java based from contamination of coliform, total
plate count number, and nitrate-nitrite concentration. This research also aim to
know about coliform contamination, total plate count number, and nitrate-nitrite
concentration of water which originated come from Sumber Lanang spring water
and drinking water which produced by Candi Loka company in Jamus, Ngawi,
East Java is suitable with rules and regulation, SNI 01-3553-2006 and Permenkes
No. 492/2010.
Coliform test used MPN method, which bacterial is counting by tube
number variation. Total plate count number test (ALT) is aim to know aerob and
anaerob microorganism number with using plate count agar (PCA) method.
Nitrate-nitrite test is used by spectrophotometry method.
Results of this research showed that water which come from Sumber
Lanang has MPN number 0/100 ml sample, ALT number showed 2, nitrate
concentration 0,5047 mg/l, and nitrite concentration 0 mg/l. drinking water which
produced by Candi Loka company showed MPN number 5/100 ml sample, ALT
number showed 103, nitrate concentration 0,7642 mg/l, and nitrite concentration
0,001 mg/l. This results show that contamination of coliform, ALT number,
nitrate-nitrite concentration of Sumber Lanang is more better and more suitable
with SNI 01-3553-2006 and Permenkes No.492/2010 than drinking water which
produced by Candi Loka company in Jamus, Ngawi, East Java.
Keywords: Sumber Lanang Water Quality, Candi Loka Jamus Company,
Coliform, Total Plate Count Number, and Nitrate-Nitrite Concentration