Ichimlik suvining sifati: E.coli va umumiy koliformlar 100 ml da mavjud emas; pH 6.5–8.5; nitrat ≤50 mg/l; nitrit ≤0.5 mg/l; ftor ≤1.5 mg/l; qolgan xlor 0.2–0.5 mg/l; qattiqlik (CaCO3) 0–500 mg/l; turbidlik ≤1 NTU; qo'rg'oshin (Pb) ≤0.01 mg/l; arsen (As) ≤0.01 mg/l; temir ≤0.3 mg/l; rux ≤3 mg/l