| 降水深(mm) | 地下水(亿m3) | 水资源总量(亿m3) | 废水(亿吨) | COD (万吨) | |
| 1999 | 705.5 | 285.6 | 514.7 | - | - |
| 2000 | 1029.6 | 458.3 | 1164.7 | 48.69 | - |
| 2001 | 637 | 264.68 | 482.96 | 46 | - |
| 2002 | 787 | 317.25 | 656.58 | 52.01 | - |
| 2003 | 1287.5 | 519.65 | 1695.04 | 60.12 | 123.2 |
| 2004 | 797.8 | 330.31 | 653.2 | 56.15 | 107.68 |
| 2005 | 1087.2 | 439.06 | 1265.89 | 58.79 | 97.73 |
| 2006 | 874.7 | 341.71 | 826.44 | 62.08 | 85.18 |
| 2007 | 1012.3 | 410.78 | 1198.87 | 65.82 | 73.35 |
| 2008 | 903.6 | 363.35 | 905.34 | 67.05 | 52.62 |
| 2009 | 837 | 335.21 | 710.92 | 73.4 | 55.08 |
| 2010 | 871.2 | 353.6 | 859.6 | 76.34 | 49.95 |
| 2011 | 816 | 328.2 | 750.1 | 76.3 | 48.43 |
| 2012 | 748.6 | 294.9 | 649.4 | 76.4 | 51.4 |
| 2013 | 716 | 286 | 569 | 76.14 | 43.22 |
| 2014 | 846 | 315 | 689 | 76.35 | 41.3 |