Abstract: Analysis of Silahi rivers water quality and health disorders at comunity on Togu Domu Nauli village, Sub-district Dolok Pardamean, Simalungun regency. Silahi river water was one of water source which used by Togu Domu Nauli people. In order to assure water quality which used by people is safety therefore need a water quality control. The purpose of this study is to analyze Silahi river water quality for physic quality, biological quality, chemical quality and health disorders which sequanced by river water used. The method used was decriptive, crossectinal study with 384 population. Sampling based on simple random sampling thus got 79 sample. The result are obtained that physic quality of Silahi river water The physical parameters which are not eligible for health which,colors 36.1-38.2 TCU, turbidity ranged from 0.95 to 1.13 NTU. While qualified temperature at 22.10C, TDS 57-59 mg/l, TSS, 7-12 mg/l, is odorless. Chemical parameters which are not eligible for health or quality that is above standards DO revolves around 7.31-7.50 mg/l BOD range 2.7-5.09 mg/l l, COD range 7.0-10.4 mg/l. The parameters meet the standard quality raw pH 7.0-7.2, ammoniac-0.0003 0.0005 mg/l, phosphate 0.08-0.20, nitrate 1.4-1.7 mg/l, DO 7.31-7.50 mg/l, total coliform 38-140/100 ml, colifaecal 9 -70/100 ml.The results of study indicate thatpercentage of respondent with the skin diseases is 57 people (74.0%). So suggested to make water filter, further research needs to be done about the water quality of Lake Toba around the village of Nauli, Domu and Togu research about personal hygiene Togu Domu Nauli village community.
Penulis: bestti Star Pohan, nurmaini, irnawati marsaulina
Journal Code: jpkesmasdd140463