Pengembangan model Community Water Quality Screening berbasis TDS meter dan PH meter untuk meningkatkan literasi masyarakat terhadap air layak konsumsi di Desa Bandar Baru

Zufri Hasrudy Siregar (Program Studi Teknik Mesin, Universitas Al Azhar Medan)
Adinda Juita Nasution (Program Studi Teknik Sipil, Fakultas Teknik, Universitas Al-Azhar)
Yuri Dwi Lianto (Program Studi Teknik Sipil, Fakultas Teknik, Universitas Al-Azhar)
Syafrida Hanum (Program Studi Teknik Sipil, Fakultas Teknik, Universitas Al-Azhar)
Refiza (Program Studi Teknik Industri, Fakultas Teknik, Universitas Al-Azhar)
Ilmi Abdullah (Program Studi Teknik Mesin, Fakultas Teknik, Universitas Sumatera Utara)
Riana Puspita (Program Studi Teknik Industri, Fakultas Teknik, Universitas Medan Area)
Arif Fadillah Nasution (Program Studi Teknik Mesin, Universitas Al Azhar Medan)

Jurnal Derma Pengabdian Dosen Perguruan Tinggi (Jurnal DEPUTI)
Vol. 6 No. 2 (2026): Juli 2026

Limited access to laboratory testing encourages communities to assess water mainly by clarity, odor, and taste. This approach cannot adequately detect changes in physicochemical characteristics. This community engagement program developed a Community Water Quality Screening model using TDS and pH meters in Bandar Baru Village. The model integrates education, calibration, duplicate measurements, restricted interpretation, risk communication, and laboratory referral. The analytical draft uses a structured simulated dataset of 48 participants and 72 water samples from six source types. Analyses included descriptive statistics, paired t tests, McNemar tests, Kruskal-Wallis tests, chi-square tests, Spearman correlations, intraclass correlation coefficients, and linear regression. Mean literacy scores increased from 42.0 to 70.6 out of 100, a mean increase of 28.5 points (95% CI 25.9-31.1; p<.001). 85.4% of participants mastered at least eight of ten procedural steps. Of 72 samples, 44 were classified as green, 22 as yellow, and 6 as red. Water source type was associated with screening category (chi-square=33.36; p<.001; Cramer V=0.48). Duplicate measurements showed very high consistency for pH (ICC=0.998) and TDS (ICC=1.000). The model offers a practical educational framework but does not replace microbiological and comprehensive chemical testing.