Research Article
Determination of Aluminium and Physicochemical Parameters in the Palm Oil Estates Water Supply at Johor, Malaysia
Table 4
The mean values and standard deviation for physicochemical parameters by estates and water sample categories.
(a) Mean ± standard deviation for the raw water samples in private water supply |
| Physicochemical parameters (NSDWQ acceptable value) | Estates with private water supply | Raw water | PP/BP | PL | BK | TL | SB | USB |
| pH (5.5–9.0) | | | | | | | TDS (1500 mg/L) | | | | | | | Turbidity (1000 NTU) | | | | | | | Residual chlorine (NA) | No residual chlorine analysis was done for raw water samples |
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(b) Mean ± standard deviation for the drinking water samples in private water supply |
| Physicochemical parameters (NSDWQ acceptable value) | Estates with private water supply | Drinking water | PP/BP | PL | BK | TL | SB | USB |
| pH (6.5–9.0) | | | | | | | TDS (1000 mg/L) | | | | | | | Turbidity (5 NTU) | | | | | | | Residual chlorine (not less than 0.2 mg/L) | | | | | | |
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(c) Mean ± standard deviation for the drinking water samples in public water supply |
| Physicochemical parameters (NSDWQ acceptable value) | Estates with public water supply | Drinking water | TT | NH | REM | SP |
| pH (6.5–9.0) | | | | | TDS (1000 mg/L) | | | | | Turbidity (5 NTU) | | | | | Residual chlorine (not less than 0.2 mg/L) | | | | |
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