A Rainwater Harvesting and Treatment System for Domestic Use and Human Consumption in Native Communities in Amazonas (NW Peru): Technical and Economic Validation

Table 5

Water quality (mean ± standard deviation) based on monthly evaluation during two months of the low water season (September and October 2020).

Systems samples (inlet/outlet)	pH (units)	Turbidity (NTU)	Aluminium (mg/L)	Zinc (mg/L)
FPK-S2 (inlet)	6.95 ± 0.12	1.75 ± 0.21	0.67 ± 0.69	2.51 ± 0.84
FPK-S2 (outlet)	6.99 ± 0.05	1.10 ± 0.42	1.26 ± 1.44	1.82 ± 0.24
FJT-S1 (inlet)	6.80 ± 0.27	1.20 ± 0.28	0.16 ± 0.04	2.06 ± 0.44
FJT-S1 (outlet)	6.81 ± 0.18	1.55 ± 0.21	0.29 ± 0.20	2.59 ± 0.86
FT-S4 (inlet)	7.07 ± 0.13	1.35 ± 0.21	0.21 ± 09	3.12 ± 2.12
FT-S4 (outlet)	7.03 ± 0.12	1.85 ± 0.07	0.24 ± 0.13	3.30 ± 2.31
FI-S3 (inlet)	7.30 ± 0.08	1.90 ± 0.14	0.46 ± 0.28	4.93 ± 3.89
FI-S3 (outlet)	7.29 ± 0.08	2.20 ± 0.28	0.22 ± 0.01	4.92 ± 3.90
D.S. N° 031-2010-SA	6.5–8.5	5 UNT	0.2 mg Al/L	3.0 mg Zn/L

Noncompliant; nc = not contemplated in the standard.