As initial data, laboratory tests were carried out on raw water (Surabaya River Avur Wonorejo
water) with physical, chemical, and biological parameters to determine whether these parameters
meet the quality standards by the Minister of Health Regulation Number 32 of 2017. From the
ISSN: 2278-4853 Vol 10, Issue 9, September, 2021 Impact Factor: SJIF 2021 = 7.699
Asian Journal of Multidimensional Research (AJMR)
https://www.tarj.in
148
AJMR
results, the initial examination of the parameters of TDS, Turbidity, Hardness, Cl, Fe, and
E.coli
in Wonorejo River water in Surabaya is presented in full in
Table 1.
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