Table 1 Characterization of wastewater treatment plants (WWTP).

From: Methodic aspects of influenza and respiratory syncytial virus detection in raw wastewater and presence in treatment plants in southeastern Germany

WWTP

Population

served

Mean volume

(m³/d)

Combined sewer system

Sewer network length (km)

Ratio industrial: municipal wastewater

A

43,100

7,700

Yes

300

1:19.0

B

11,400

4,200

No

233

1:2.4

C

249,000

77,100

No

597

1:5.7

D

700,000

131,000

No

904

1:1.9

E

27,400

5,400

Yes

50

1:19.0

F

63,900

18,100

Yes

201

1:4.0

G

626,000

91,200

Yes

892

1:3.2

H

40,200

14,500

No

370

1:1.1