Table 2.
Descriptive statistics and categorical levels for water demands and influential variables (units in brackets).
| Variable | Mean ± Std. Deviation | Median | Interquartile Range |
|---|---|---|---|
| Total water demand | |||
| Total demand [MGD] | 132.29 ± 24.19 | 125.67 | 33.45 |
| Water demands across zones | |||
| Zone 1 [MGD] | 30.16 ± 7.50 | 27.17 | 9.90 |
| Zone 2 [MGD] | 30.20 ± 6.36 | 30.19 | 8.38 |
| Zone 3 [MGD] | 23.33 ± 5.26 | 22.50 | 7.66 |
| Zone 4 [MGD] | 11.88 ± 3.18 | 11.10 | 4.47 |
| Zone 5 [MGD] | 2.26 ± 0.88 | 2.06 | 1.06 |
| Zone 6 [MGD] | 20.52 ± 3.84 | 20.06 | 4.68 |
| Zone 7 [MGD] | 10.69 ± 2.85 | 9.98 | 2.96 |
| Zone 8 [MGD] | 3.24 ± 1.42 | 2.95 | 1.62 |
| Zone 9 [MGD] | 1.18 ± 0.68 | 0.97 | 0.48 |
| Control variables: Socio-technical determinants | |||
| 1-day lag of demanda [MGD] | – | – | – |
| Maximum air temperature [◦F] | 81.23 ± 14.94 | 83.5 | 21.97 |
| Rainfall amount [in] | 0.11 ± 0.43 | 0 | 0.005 |
| Days since rain [days] | 8.06 ± 8.41 | 5 | 10 |
| Season | 1 – Winter, 2 – Spring, 3 – Summer, 4 – Autumn | ||
| Weekday | 1 – Mon, 2 – Tue, 3 – Wed, 4 – Thurs, 5 – Fri, 6 – Sat, 7 – Sun | ||
| Water conservation policy | 0 – Stage-2 conservation, 1 – Stage-0 conservation | ||
| Independent variables: Social distancing policies | |||
| SDPs | 1 – Non-enactment of SDPs, 2 – Stay Home-Work Safe, 3 – Reopening Phase 1, 4 – Reopening Phase 2, 5 – Reopening Phase 3 | ||
a
Descriptive statistics values for the lag demand of system-total and nine pressure zones are the same as their corresponding water demands.