Surveys on Water Supply and Sewerage
Water supply and sewerage
Collection and treatment of waste by Autonomous Communities and Cities, source type and period. 
Unidades: 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,
Spain,
    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,..,..,..,..,..,..,..,..,..,..,..,
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,..,..,..,..,..,..,..,..,..,..,..,
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,..,..,..,..,..,..,..,..,..,..,..,
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,..,..,..,..,..,..,..,..,..,..,..,
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,..,..,..,..,..,..,..,..,..,..,..,
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,..,..,..,..,..,..,..,..,..,..,..,
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,..,..,..,..,..,..,..,..,..,..,..,
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,..,..,..,..,..,..,..,..,..,..,..,
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,..,..,..,..,..,..,..,..,..,..,..,
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,..,..,..,..,..,..,..,..,..,..,..,
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,..,..,..,..,..,..,..,..,..,..,..,
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,..,..,..,..,..,..,..,..,..,..,..,
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,..,..,..,..,..,..,..,..,..,..,..,
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,..,..,..,..,..,..,..,..,..,..,..,
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,..,..,..,..,..,..,..,..,..,..,..,
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,..,..,..,..,..,..,..,..,..,..,..,
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,..,..,..,..,..,..,..,..,..,..,..,
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,..,..,..,..,..,..,..,..,..,..,..,
Notas:
Fuente: National Statistics Institute