Taiwan Sediment Quality Information System

In the 2nd quarter of 2025, sediment quality data filing was completed for 34 sites, including 0 river site, 0 reservoir site, and 34 irrigation canal sites. As of this quarter, a cumulative total of 1,615 sites have been completed.

In the 1st quarter of 2025, sediment quality data filing was completed for 93 sites, including 0 river site, 10 reservoir sites, and 83 irrigation canal sites. As of this quarter, a cumulative total of 1,581 sites have been completed.

In the 4th quarter of 2024, sediment quality data filing was completed for 9 sites, including 7 river sites, 2 reservoir sites, and 0 irrigation canal site. As of this quarter, a cumulative total of 1,488 sites have been completed.

In the 3rd quarter of 2024, sediment quality data filing was completed for 25 sites, including 21 river sites, 4 reservoir sites, and 0 irrigation canal site. As of this quarter, a cumulative total of 1,481 sites have been completed.

In the 2nd quarter of 2024, sediment quality data filing was completed for 12 sites, including 6 river sites, 6 reservoir sites, and 0 irrigation canal site. As of this quarter, a cumulative total of 1,458 sites have been completed.

In the 1st quarter of 2024, sediment quality data filing was completed for 97 sites, including 9 river sites, 30 reservoir sites, and 58 irrigation canal sites. As of this quarter, a cumulative total of 1,446 sites have been completed.

In the 4th quarter of 2023, sediment quality data filing was completed for 132 sites, including 23 river sites, 28 reservoir sites, and 81 irrigation canal sites. As of this quarter, a cumulative total of 1,349 sites have been completed.

In the 3rd quarter of 2023, sediment quality data filing was completed for 17 sites, including 10 river sites, 7 reservoir sites, and 0 irrigation canal site. As of this quarter, a cumulative total of 1,218 sites have been completed.

In the 2nd quarter of 2023, sediment quality data filing was completed for 9 sites, including 3 river sites, 6 reservoir sites, and 0 irrigation canal site. As of this quarter, a cumulative total of 1,201 sites have been completed.

In the 1st quarter of 2023, sediment quality data filing was completed for 90 sites, including 0 river site, 15 reservoir sites, and 75 irrigation canal sites. As of this quarter, a cumulative total of 1,192 sites have been completed.

In the 4th quarter of 2022, sediment quality data filing was completed for 85 sites, including 8 river sites, 18 reservoir sites, and 59 irrigation canal sites. As of this quarter, a cumulative total of 1,102 sites have been completed.

In the 3rd quarter of 2022, sediment quality data filing was completed for 16 sites, including 10 river sites, 6 reservoir sites, and 0 irrigation canal site. As of this quarter, a cumulative total of 1,018 sites have been completed.

In the 2nd quarter of 2022, sediment quality data filing was completed for 25 sites, including 10 river sites, 15 reservoir sites, and 0 irrigation canal site. As of this quarter, a cumulative total of 1,002 sites have been completed.

In the 1st quarter of 2022, sediment quality data filing was completed for 170 sites, including 0 river site, 9 reservoir sites, and 161 irrigation canal sites. As of this quarter, a cumulative total of 977 sites have been completed.

In the 4th quarter of 2021, sediment quality data filing was completed for 25 sites, including 13 river sites, 1 reservoir site, and 11 irrigation canal sites. As of this quarter, a cumulative total of 808 sites have been completed.