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Table 2

Compliance of RW used for irrigation and discharge in Maneadero and US EPA for restricted and non-restricted irrigation (USEPA 2012)

Non-restricted irrigation (USEPA 2012)Restricted irrigation (USEPA 2012)RW CESPECompliance
Types of treatment Secondary, followed by sand filtration and disinfection Secondary, followed by disinfection Secondary, followed by sand filtration and disinfection Yes 
Reuse activities Irrigation of crops suitable for human consumption, even raw Irrigation of crops suitable for human consumption after being processed
Irrigation of crops not suitable for human consumption 
Irrigation of crops non suitable for human consumption Yes, restricted 
Water quality parameters pH = 6.0–9.0; BOD ≤ 10 mg L−1; Turbidity ≤ 2; FC = not detectable; Cl2 residual ≥ 1 mg L−1 pH = 6.0–9.0; BOD5 ≤ 30 mg L−1; TSS ≤ 30 mg L−1; FC ≤ 200 MPN/100 mL; Cl2 residual ≥ 1 mg L−1 pH = 7.1; BOD5 = 10 ± 6 mg L−1; TSS 12 ± 15 mg L−1; FC ≤ 1.000 MPN/100 mL; Cl2 = 1 mg L−1 Yes, partially (spikes need to be controlled) 
Non-restricted irrigation (USEPA 2012)Restricted irrigation (USEPA 2012)RW CESPECompliance
Types of treatment Secondary, followed by sand filtration and disinfection Secondary, followed by disinfection Secondary, followed by sand filtration and disinfection Yes 
Reuse activities Irrigation of crops suitable for human consumption, even raw Irrigation of crops suitable for human consumption after being processed
Irrigation of crops not suitable for human consumption 
Irrigation of crops non suitable for human consumption Yes, restricted 
Water quality parameters pH = 6.0–9.0; BOD ≤ 10 mg L−1; Turbidity ≤ 2; FC = not detectable; Cl2 residual ≥ 1 mg L−1 pH = 6.0–9.0; BOD5 ≤ 30 mg L−1; TSS ≤ 30 mg L−1; FC ≤ 200 MPN/100 mL; Cl2 residual ≥ 1 mg L−1 pH = 7.1; BOD5 = 10 ± 6 mg L−1; TSS 12 ± 15 mg L−1; FC ≤ 1.000 MPN/100 mL; Cl2 = 1 mg L−1 Yes, partially (spikes need to be controlled) 
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