2020

2019-2020

2021-2022

Census Data

Violations

Cl⁻

TTHM

Cl⁻

TTHM

TTHM

Statistics

Population

Income

Systems

Total

[ppm]

[ppb]

[ppm]

[ppb]

% Change

Mean (M)

5,188,028

$66,383

20,319

44,875

1.95

25.42

1.85

37.98

+85.6%

Standard Error

1.1E+6

1314

3352

9429

0.25

4.98

0.27

5.56

0.31

Variance

1.5E+13

2.1E+7

1.4E+6

1.1E+9

0.76

298.19

0.87

371.25

1.15

Standard Deviation (SD)

3.8E+6

4553.6

11614.9

32662.4

0.87

17.27

0.93

19.27

1.07