Masalah peningkatan volume sampah salah satunya terjadi di Kabupaten Indragiri Hilir. Selain itu, penggunaan teknologi pengolahan sampah yang digunakan sudah tidak sesuai dengan peraturan yang dikeluarkan, sehingga hal sangat berisiko mencemari kualitas air tanah. Tujuan penelitian mengetahui kualitas air tanah di  tempat penampungan sampah sementara di Kelurahan Tembilahan Kota, dengan metode penelitian deskriptif. Populasi adalah sumur warga yang tinggal di Kelurahan Tembilahan Kota sebanyak 30 sumur, dan sampel berjumlah  5 sumur milik warga. Prosedur pengambilan sampel sesuai dengan SNI 06-2412-1991 mengenai metode pengambilan  air pemeriksaan mikrobiologi. Hasil penelitian diperoleh analisis bahwa diantara parameter fisik air tanah, parameter yang paling banyak tidak memenuhi syarat baku mutu adalah parameter rasa dengan hasil sebanyak 4 (80%) sampel dari 5 sampel, sedangkan suhu sebanyak 3 (60%) tidak memenuhi syarat, warna sebanyak 2 (40%) tidak memenuhi syarat, bau sebanyak 3 (60%) tidak memenuhi syarat, sedangkan hasil pemeriksaan bakteri coli postif dengan hasil positif sebanyak 4 (80%) sampel dari 5 sampel. Total coliform dari hasil laboratorium sebesar (14000) tinggi. Diharapkan dinas kesehatan mengerah petugas kesehatan setempat memperhatikan lingkungan sekitar dan memberi penyuluhan tentang pengolahan air yang baik sebelum diminum, agar tidak terjadi pencemaran terhadap lingkungan dan sumber air minum yang terdapat di lingkungan Kelurahan Tembilahan Kota.   One of the problems in increasing the volume of waste is in Indragiri Hilir Regency. 60% of landfill waste is disposed of in open temporary landfills. In addition, the use of waste treatment technology that is used is not in accordance with the regulations issued, so it is very risky to pollute the quality of ground water. Based on the background of the problems above. This study aims to determine the quality of ground water in a temporary garbage shelter in the Tembilahan City Kelurahan, with a descriptive research method. The population and sample in this study were 5 community wells living in Tembilahan Kota Kelurahan. Sampling procedures must be in accordance with SNI 06-2412-1991 regarding the method of taking microbiological examination water. Based on the results of the study obtained the results of the analysis that among the physical parameters of ground water, the parameter that most did not meet the quality standard requirements was the taste parameter, with the results of 4 (80%) samples from 5 samples, while the temperature parameters were 3 (60%). qualified, color parameters as much as 2 (40%) did not meet the requirements, odor parameters as much as 3 (60%) did not qualify, while positive coli bacterial examination results with positive results were 4 (80%) samples from 5 samples. The total coliform from the results of laboratory tests is (14000) high. It is expected that the health department will mobilize local health officials to pay attention and provide counseling about the importance of protecting the surrounding environment and counseling about good water treatment before drinking, so that pollution does not occur to the environment and drinking water sources contained in the Tembilahan City Kelurahan.