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Environmental Systems Research

Table 6 Water quality at different cleaning frequencies as shown in 2 reviewed studies

From: The effect of household storage tanks/vessels and user practices on the quality of water: a systematic review of literature

Author (Year)

Indicator

Regular Cleaning Interval (Months)

Cleaning Frequencies per Year

< 2

2

4

6

3+

1 to 2

> 1

Nnaji et al. (2019)

TC ≈ mean (MPN/100ml)

< 5

18

20

90

   

E. coli ≈ mean (MPN/100ml)

0

3

6

7

   

HPC ≈ mean (cfu/ml)

0

10

27

37

   

pH ≈ mean

6.8

6.95

6.9

7.05

   

Schafer and Mihelcic (2012)

E. coli - mean (cfu/100ml)

    

8.2

33.2

34.3

TC - mean (cfu/101ml)

    

36

202.8

565.3

Turbidity - NTU

    

3.7

6.1

4.4

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