Surveys on Water Supply and Sewerage Water supply and sewerage Collection and treatment of waste by Autonomous Communities and Cities, source type and period. Units: Volume: cubic metres/day. Amount: thousand euros ,2020,2018,2016,2014,2013,2012,2011,2010,2009,2008,2007,2006,2005,2004,2003,2002,2001,2000, National Total, Volume of treated waste water,13,361,642,13,684,587,12,949,076,13,540,084,13,693,645,13,592,255,13,497,518,13,326,802,12,800,974,12,371,505,12,519,495,13,371,704,13,804,901,13,600,198,8,490,051,8,016,351,7,699,936,7,752,624, Volume of reused water,1,457,620,1,534,100,1,350,536,1,453,995,1,455,509,1,502,614,1,666,429,1,346,008,1,464,261,1,439,832,1,372,115,1,335,146,1,083,551,1,007,994,463,557,496,714,561,599,733,894, Invoiced amount by sewerage and waste water treatment,2,481,515,2,502,060,2,485,747,2,536,798,2,383,001,2,346,109,2,005,529,1,991,090,1,885,025,1,851,494,1,940,830,1,426,699,1,329,547,1,164,635,886,061,777,326,735,009,649,634, Length of the sewerage system (km),148,829,147,237,146,414,146,938,148,847,..,..,..,..,..,..,..,..,..,..,..,..,.., Volume of the sludge generated in waste water treatment (tonnes of dry matter /year),1,148,222,1,210,447,1,174,425,1,131,632,1,122,608,1,233,393,1,331,577,..,..,..,..,..,..,..,..,..,..,.., 01 Andalucía, Volume of treated waste water,1,915,525,2,113,908,1,912,804,2,005,740,2,073,031,2,330,840,2,256,741,1,838,496,1,566,714,1,488,514,1,387,265,1,767,317,1,745,600,1,996,737,1,642,305,1,543,520,1,581,312,1,526,363, Volume of reused water,99,968,101,541,113,471,157,083,172,260,240,384,313,820,338,035,326,892,264,917,333,936,124,125,130,757,143,990,106,897,100,443,70,547,115,005, Invoiced amount by sewerage and waste water treatment,454,552,426,852,390,594,418,635,381,132,374,806,331,882,296,192,284,071,267,801,283,755,244,127,275,825,242,715,169,640,147,016,140,699,138,425, Length of the sewerage system (km),32,269,30,621,30,771,32,042,30,746,..,..,..,..,..,..,..,..,..,..,..,..,.., Volume of the sludge generated in waste water treatment (tonnes of dry matter /year),205,899,233,977,230,688,232,900,220,309,242,048,261,282,..,..,..,..,..,..,..,..,..,..,.., 02 Aragón, Volume of treated waste water,533,675,478,592,526,337,552,592,557,871,512,896,549,061,649,614,677,212,617,991,590,011,552,921,580,191,572,649,292,031,247,118,247,468,257,880, Volume of reused water,10,043,37,180,4,063,4,189,4,363,3,410,4,022,4,936,3,712,2,336,2,565,1,053,4,078,959,266,36,069,31,213,31,000, Invoiced amount by sewerage and waste water treatment,87,533,85,125,79,873,73,280,72,693,67,075,67,745,75,532,72,348,69,785,91,409,63,835,54,485,46,549,30,007,28,238,23,887,23,638, Length of the sewerage system (km),4,649,4,697,4,852,4,398,4,037,..,..,..,..,..,..,..,..,..,..,..,..,.., Volume of the sludge generated in waste water treatment (tonnes of dry matter /year),36,243,40,520,46,346,50,836,48,812,50,439,48,971,..,..,..,..,..,..,..,..,..,..,.., 03 Asturias, Principado de, Volume of treated waste water,446,555,370,603,403,460,552,204,451,120,409,599,367,351,335,400,298,913,273,866,285,462,327,610,296,015,267,259,142,679,86,113,93,800,115,637, Volume of reused water,26,285,24,946,15,723,38,187,0,255,7,222,5,517,0,0,8,487,7,928,9,047,29,480,2,128,0,0,0, Invoiced amount by sewerage and waste water treatment,50,828,57,671,49,125,56,517,47,756,47,745,45,538,44,613,45,012,40,169,42,495,34,405,29,010,17,538,23,026,18,366,17,493,15,194, Length of the sewerage system (km),5,067,4,892,5,176,5,137,5,419,..,..,..,..,..,..,..,..,..,..,..,..,.., Volume of the sludge generated in waste water treatment (tonnes of dry matter /year),18,097,22,850,20,184,40,565,17,843,24,173,23,739,..,..,..,..,..,..,..,..,..,..,.., 04 Balears, Illes, Volume of treated waste water,309,685,341,865,313,241,335,193,396,379,394,772,377,398,280,047,301,103,291,718,323,705,367,836,452,976,331,908,178,939,172,067,146,948,183,892, Volume of reused water,140,682,116,320,103,425,152,471,191,227,117,870,109,696,95,389,125,859,99,600,108,131,131,771,149,732,101,280,51,043,64,486,64,181,101,197, Invoiced amount by sewerage and waste water treatment,98,223,102,507,97,948,95,166,93,396,87,038,68,648,104,159,70,022,77,942,74,987,63,386,49,364,36,101,38,704,41,763,41,521,34,450, Length of the sewerage system (km),3,889,3,622,3,720,3,684,3,672,..,..,..,..,..,..,..,..,..,..,..,..,.., Volume of the sludge generated in waste water treatment (tonnes of dry matter /year),44,619,32,272,44,490,19,743,25,153,35,739,34,446,..,..,..,..,..,..,..,..,..,..,.., 05 Canarias, Volume of treated waste water,318,386,282,590,341,769,382,674,330,186,367,286,341,566,339,630,357,252,340,174,297,974,297,054,258,900,209,647,224,998,207,657,166,612,181,895, Volume of reused water,75,336,61,711,67,962,75,968,69,611,85,344,85,282,86,956,96,292,90,876,90,327,166,195,81,013,81,777,117,996,102,440,78,132,98,737, Invoiced amount by sewerage and waste water treatment,54,208,55,701,62,441,53,816,59,199,63,488,65,149,55,936,56,709,48,350,56,882,47,493,44,236,47,324,37,347,33,460,28,758,25,916, Length of the sewerage system (km),5,469,6,197,5,424,5,562,8,188,..,..,..,..,..,..,..,..,..,..,..,..,.., Volume of the sludge generated in waste water treatment (tonnes of dry matter /year),22,245,21,815,17,405,25,497,17,006,62,344,30,602,..,..,..,..,..,..,..,..,..,..,.., 06 Cantabria, Volume of treated waste water,293,290,349,650,319,351,266,992,286,585,257,359,245,869,279,236,243,190,254,799,223,436,283,538,287,291,204,618,85,211,65,373,49,138,85,939, Volume of reused water,4,911,3,910,5,486,5,337,5,636,10,413,0,0,0,0,0,3,442,3,431,2,715,11,843,753,318,0, Invoiced amount by sewerage and waste water treatment,40,967,35,835,37,354,36,131,31,060,26,833,28,593,23,743,21,374,20,232,19,598,14,217,14,526,13,210,13,771,12,508,12,187,12,447, Length of the sewerage system (km),2,347,2,305,2,405,2,473,2,569,..,..,..,..,..,..,..,..,..,..,..,..,.., Volume of the sludge generated in waste water treatment (tonnes of dry matter /year),22,301,24,066,24,582,66,904,22,498,32,991,48,602,..,..,..,..,..,..,..,..,..,..,.., 07 Castilla y León, Volume of treated waste water,1,129,762,1,304,756,1,026,339,1,070,390,1,090,397,1,180,864,1,085,202,1,425,452,1,325,983,1,297,653,1,719,236,1,588,593,1,453,871,983,050,537,222,513,616,295,914,299,200, Volume of reused water,11,429,26,461,9,387,10,758,13,841,8,438,2,460,9,693,9,430,8,864,8,790,13,845,4,793,3,693,3,505,18,050,2,953,2,060, Invoiced amount by sewerage and waste water treatment,91,994,96,574,97,534,94,668,97,520,109,990,92,986,111,100,109,870,103,715,129,035,96,834,64,651,47,057,34,387,19,284,20,188,15,224, Length of the sewerage system (km),9,925,10,644,9,880,10,807,10,309,..,..,..,..,..,..,..,..,..,..,..,..,.., Volume of the sludge generated in waste water treatment (tonnes of dry matter /year),91,635,112,992,89,167,72,747,81,278,77,449,74,381,..,..,..,..,..,..,..,..,..,..,.., 08 Castilla - La Mancha, Volume of treated waste water,557,720,646,665,498,337,528,160,636,849,606,197,697,040,581,596,543,248,508,587,429,921,488,963,581,152,492,724,339,362,301,625,336,019,279,765, Volume of reused water,15,501,12,385,18,822,15,297,22,348,4,046,4,625,13,587,19,901,17,516,18,041,16,349,19,734,9,193,5,524,17,241,21,562,13,210, Invoiced amount by sewerage and waste water treatment,63,428,65,501,68,583,67,524,79,176,69,187,77,744,67,355,63,367,55,097,51,044,57,160,44,159,27,349,25,922,20,303,18,938,15,404, Length of the sewerage system (km),8,305,8,255,8,754,8,062,8,893,..,..,..,..,..,..,..,..,..,..,..,..,.., Volume of the sludge generated in waste water treatment (tonnes of dry matter /year),26,118,52,349,19,894,22,461,33,279,49,236,56,593,..,..,..,..,..,..,..,..,..,..,.., 09 Cataluña, Volume of treated waste water,1,935,244,1,775,463,1,716,803,1,724,980,1,788,210,1,776,438,1,892,045,1,894,845,1,850,979,1,821,859,1,805,479,1,993,776,1,609,402,1,960,241,1,440,621,1,435,569,1,609,628,1,820,654, Volume of reused water,105,070,79,245,83,397,69,315,83,247,78,074,77,644,91,424,116,657,113,764,72,931,106,259,120,749,31,062,11,124,13,781,13,452,162,572, Invoiced amount by sewerage and waste water treatment,506,831,535,777,560,419,610,906,554,671,581,350,369,452,371,912,361,877,362,795,423,628,142,007,112,150,84,293,134,134,117,210,97,457,106,571, Length of the sewerage system (km),14,560,14,430,14,197,14,372,14,022,..,..,..,..,..,..,..,..,..,..,..,..,.., Volume of the sludge generated in waste water treatment (tonnes of dry matter /year),252,523,216,266,214,369,209,593,205,345,159,497,170,341,..,..,..,..,..,..,..,..,..,..,.., 10 Comunitat Valenciana, Volume of treated waste water,1,282,866,1,317,728,1,153,786,1,150,165,1,210,832,1,233,312,1,298,793,1,375,663,1,377,454,1,402,775,1,372,100,1,334,458,1,385,387,1,376,471,724,831,625,980,551,977,637,732, Volume of reused water,545,832,562,786,548,751,682,044,663,165,739,726,836,164,427,975,476,029,502,987,426,033,634,499,434,495,502,809,135,196,66,078,98,934,161,472, Invoiced amount by sewerage and waste water treatment,331,974,344,083,338,584,328,752,291,896,282,548,240,186,240,154,232,875,240,585,229,849,195,797,170,394,157,394,74,866,67,265,60,010,39,727, Length of the sewerage system (km),15,356,15,205,15,540,14,412,15,965,..,..,..,..,..,..,..,..,..,..,..,..,.., Volume of the sludge generated in waste water treatment (tonnes of dry matter /year),114,510,119,221,136,295,127,572,130,447,130,853,141,570,..,..,..,..,..,..,..,..,..,..,.., 11 Extremadura, Volume of treated waste water,354,386,415,490,404,633,444,289,413,603,449,889,514,727,409,066,347,812,385,720,403,993,282,573,356,163,126,298,266,420,244,332,175,387,150,022, Volume of reused water,0,0,0,151,0,0,2,381,0,0,0,0,3,253,6,351,2,103,1,293,17,082,16,227,0, Invoiced amount by sewerage and waste water treatment,32,712,31,663,31,443,35,030,31,564,36,006,31,216,33,022,34,550,40,789,40,494,27,920,26,257,18,445,21,681,19,447,19,410,13,288, Length of the sewerage system (km),3,820,3,874,3,198,3,279,3,547,..,..,..,..,..,..,..,..,..,..,..,..,.., Volume of the sludge generated in waste water treatment (tonnes of dry matter /year),32,821,20,515,28,854,23,811,29,541,36,211,121,065,..,..,..,..,..,..,..,..,..,..,.., 12 Galicia, Volume of treated waste water,1,047,977,1,039,852,891,827,904,492,978,384,955,690,827,195,834,061,896,645,737,520,751,661,679,221,743,950,1,140,686,497,878,523,872,447,168,373,745, Volume of reused water,89,700,189,218,78,630,1,254,0,2,580,1,466,1,444,1,671,1,658,1,394,1,642,2,559,4,107,1,561,574,162,0, Invoiced amount by sewerage and waste water treatment,97,583,104,719,90,172,81,438,78,133,73,275,78,129,75,332,67,028,58,898,63,784,48,848,65,217,63,441,29,509,27,007,29,122,22,814, Length of the sewerage system (km),12,210,12,077,12,898,13,502,13,809,..,..,..,..,..,..,..,..,..,..,..,..,.., Volume of the sludge generated in waste water treatment (tonnes of dry matter /year),38,988,46,358,45,462,25,146,23,695,67,245,48,954,..,..,..,..,..,..,..,..,..,..,.., 13 Madrid, Comunidad de, Volume of treated waste water,1,401,292,1,487,112,1,500,326,1,681,915,1,687,026,1,570,983,1,656,841,1,549,957,1,428,676,1,515,336,1,432,331,1,843,835,2,043,836,2,102,584,1,133,616,1,107,471,1,145,424,1,129,075, Volume of reused water,36,320,34,832,34,178,39,865,29,175,31,160,24,874,18,677,17,051,16,945,17,352,15,392,13,526,12,980,4,139,7,204,4,486,7,887, Invoiced amount by sewerage and waste water treatment,294,720,291,575,312,980,311,654,306,426,293,606,283,401,266,204,270,007,257,560,215,085,192,405,165,388,158,221,109,766,95,874,94,435,54,241, Length of the sewerage system (km),15,183,15,083,14,841,14,188,12,233,..,..,..,..,..,..,..,..,..,..,..,..,.., Volume of the sludge generated in waste water treatment (tonnes of dry matter /year),100,111,109,253,103,141,115,375,116,992,98,297,122,881,..,..,..,..,..,..,..,..,..,..,.., 14 Murcia, Región de, Volume of treated waste water,313,800,283,869,356,164,363,900,302,171,298,630,315,288,303,283,303,319,288,243,285,956,293,788,338,710,290,694,241,049,222,263,206,781,84,198, Volume of reused water,286,754,271,355,255,680,183,227,186,405,171,330,181,082,235,007,257,251,272,876,256,580,108,653,100,873,78,509,2,569,34,664,53,755,7,285, Invoiced amount by sewerage and waste water treatment,88,856,87,857,85,453,89,750,86,353,82,181,72,774,68,377,66,677,75,322,83,296,63,953,67,235,60,067,21,556,20,782,18,569,23,974, Length of the sewerage system (km),6,408,6,274,6,280,6,005,5,833,..,..,..,..,..,..,..,..,..,..,..,..,.., Volume of the sludge generated in waste water treatment (tonnes of dry matter /year),33,512,32,132,34,607,30,629,30,285,42,908,30,430,..,..,..,..,..,..,..,..,..,..,.., 15 Navarra, Comunidad Foral de, Volume of treated waste water,286,610,295,282,209,822,215,947,226,908,192,638,189,806,207,969,225,018,313,229,366,868,348,483,336,520,329,649,151,945,140,459,121,919,132,588, Volume of reused water,220,0,0,0,0,0,0,0,0,0,0,0,0,0,0,6,917,7,027,29, Invoiced amount by sewerage and waste water treatment,36,183,33,995,30,211,32,266,35,506,38,146,37,441,37,561,34,653,35,900,41,159,37,331,31,288,30,494,18,502,14,954,14,129,16,023, Length of the sewerage system (km),3,850,3,789,3,162,3,304,3,314,..,..,..,..,..,..,..,..,..,..,..,..,.., Volume of the sludge generated in waste water treatment (tonnes of dry matter /year),55,176,59,253,46,081,45,867,52,519,54,820,42,628,..,..,..,..,..,..,..,..,..,..,.., 16 País Vasco, Volume of treated waste water,1,013,022,978,794,1,181,241,1,166,863,1,056,816,883,752,718,825,830,902,851,532,616,474,575,885,657,062,1,042,034,902,268,515,848,475,505,433,841,422,389, Volume of reused water,9,569,12,187,11,561,18,378,13,810,9,316,15,458,16,907,13,405,47,493,27,548,143,1,509,0,8,423,10,598,98,500,33,340, Invoiced amount by sewerage and waste water treatment,132,188,128,700,135,071,132,930,118,100,97,852,101,349,104,810,77,837,77,837,72,323,79,472,96,832,96,011,97,356,85,950,90,709,84,725, Length of the sewerage system (km),4,010,3,943,4,179,4,475,4,924,..,..,..,..,..,..,..,..,..,..,..,..,.., Volume of the sludge generated in waste water treatment (tonnes of dry matter /year),45,758,55,561,65,130,63,260,60,058,60,874,67,862,..,..,..,..,..,..,..,..,..,..,.., 17 Rioja, La, Volume of treated waste water,179,071,160,431,151,978,148,053,163,030,138,318,143,770,143,244,183,732,195,047,247,557,245,362,268,906,284,046,56,096,83,811,70,800,52,650, Volume of reused water,0,0,0,0,0,0,0,0,0,0,0,75,272,335,0,134,0,0, Invoiced amount by sewerage and waste water treatment,14,870,13,580,13,756,13,262,13,337,10,750,10,721,11,335,13,405,15,536,19,909,15,639,16,701,16,776,5,887,7,899,7,497,7,573, Length of the sewerage system (km),1,207,1,024,835,951,1,082,..,..,..,..,..,..,..,..,..,..,..,..,.., Volume of the sludge generated in waste water treatment (tonnes of dry matter /year),5,535,8,247,6,096,5,415,5,654,7,219,5,830,..,..,..,..,..,..,..,..,..,..,.., Ceuta and Melilla, Volume of treated waste water,42,776,41,937,40,858,45,535,44,247,32,792,20,000,48,341,22,192,22,000,20,655,19,314,23,997,28,669,19,000,20,000,19,800,19,000, Volume of reused water,0,23,0,471,421,268,233,461,111,0,0,522,632,3,002,50,200,150,100, Invoiced amount by sewerage and waste water treatment,3,865,4,345,4,206,5,073,5,083,4,233,2,575,3,753,3,343,3,181,2,098,1,870,1,829,1,650,0,0,0,0, Length of the sewerage system (km),305,305,302,285,285,..,..,..,..,..,..,..,..,..,..,..,..,.., Volume of the sludge generated in waste water treatment (tonnes of dry matter /year),2,131,2,800,1,634,1,959,1,894,1,050,1,400,..,..,..,..,..,..,..,..,..,..,.., Notes: Source: National Statistics Institute