Statistics

2020

2016

2020

Census Data

Violations Cl⁻

TTHM

Cl⁻ TTHM

TTHM

Population

Income

Systems

Total

[ppm]

[ppb]

[ppm]

[ppb]

% Change

Mean (M)

6,096,652

$57,313

17,134

72,388

1.4

47.1

1.3

43.6

13.1%

Standard Error

2.0E+6

2372

4689

29,089

0.2

4.6

0.2

4.5

4.1

Variance

4.4E+13

6.2E+7

2.4E+8

9.3E+9

0.5

237.2

0.5

225.1

2.0

Standard Deviation (SD)

6.6E+6

7869.4

15,554.4

96,479.2

0.7

15.2

0.7

15.4

1.4