Year Total volume of waste water Volume of waste water discharged to public sewerage or transported directly to public waste water treatment plant and treated Total volume of waste water discharged to public sewerage without treatment Household waste water not collected by public utilitya
discharged to public sewerageb discharged to public sewerage and conducted transported directly only with mechanical als with biological also with advanced total
to public waste water treatment plant treatment technology
1990 877,187 779,373 .. 475,968 280,426 22,979 779,373 97,814 ..
1991 826,978 739,433 .. 450,224 267,869 21,340 739,433 87,546 ..
1992 787,879 713,278 .. 449,544 244,066 19,667 713,278 74,602 ..
1993 709,786 644,838 .. 389,484 236,192 19,162 644,838 64,948 ..
1994 652,960 593,778 .. 344,383 235,859 13,536 593,778 59,182 ..
1995 639,697 583,444 .. 325,451 244,992 13,001 583,444 56,253 ..
1996 608,372 520,984 .. 265,888 239,665 15,431 520,984 87,388 ..
1997 570,615 488,782 .. 231,634 245,386 11,762 488,782 81,832 4,850
1998 549,843 487,769 .. 222,593 232,777 32,400 487,769 62,074 5,723
1999 588,460 523,269 .. 224,673 261,597 36,998 523,269 65,191 6,266
2000 530,484 479,192 .. 168,910 252,978 57,304 479,192 51,291 6,172
2001 519,549 480,214 .. 197,629 222,229 60,355 480,214 39,336 5,610
2002 525,179 491,667 .. 185,064 214,865 91,738 491,667 33,511 5,371
2003 525,082 486,501 1,788 142,451 182,455 163,383 488,288
38,582c
 5,133
2004 557,456 534,260 1,575 165,074 193,404 177,357 535,835
23,196c
 5,110
2005 588,064 558,245 2,133 174,815 188,779 196,784 560,378
29,819c
 5,383
2006 567,303 532,938 3,021 152,939 249,641 133,379 535,959 34,365 4,972
2007 533,889 508,082 2,901 128,143 217,654 165,186 510,983 25,807 4,640
2008 542,106 516,796 2,992 135,845 204,820 179,123 519,787 25,311 4,325
2009 529,022 505,069 2,457 123,512 201,941 182,073 507,525 23,953 3,921
2010 556,338 551,207 2,167 17,607 280,760 255,008 553,375
5,131c
 3,643
2011 467,594 464,170 1,793 8,930 219,184 237,848 465,963
3,424c
 3,311
2012 435,692 429,355 2,292 831 106,293 324,523 431,647 6,336 3,002
2013 496,331 481,551 1,888 562 110,808 372,068 483,439 14,780 2,928
2014 493,359 473,753 1,732 639 97,570 377,276 475,485 19,607 2,746
2015 494,857 482,452 1,531 746 63,722 419,514 483,983 12,405 2,322
2016 561,796 544,552 1,524 499 66,023 479,555 546,077 17,243 2,062
2017 552,482 537,700 1,561 511 48,515 490,235 539,261 14,782 ..
2018 570,794 559,876 1,540 530 49,461 511,425 561,415 10,918 ..
2019 553,562 538,558 1,513 529 46,543 493,000 540,071 15,004 ..

Footnotes

aFormer denomination: municipal liquid waste.
bTotal volume of treated or untreated waste water collected by public sewerage.
cPartly estimated data.

Explanation of symbols

..
Datum not available.
green number
Revised datum.
.