# SAPASA flood prevention and sanitation efforts in Atizapán

> Live situation record from CLSTR: https://clstr.news/situations/sapasa-flood-prevention-and-sanitation-efforts-in-atizapn
> Updated: 2026-08-13T02:28:48.000Z. Sources: 2. Developments: 2.

The Sistema de Agua Potable, Alcantarillado y Saneamiento (SAPASA) has undertaken significant cleaning and desilting operations in the Atizapán region to mitigate flood risks and improve water flow.

In early 2026, SAPASA completed over 125 cleaning sessions at Presa Madín, extracting approximately 11,000 tons of solid waste and 193,000 cubic meters of silt. This coordinated effort with various water commissions and civil-society groups aimed to reduce the risk of dam overtopping and support regional water supplies for Atizapán, Naucalpan, and Tlalnepantla.

Following these efforts, SAPASA expanded its operations to the Ángulo Dam, removing more than 40 tons of sediment, mud, and debris. These activities, conducted in coordination with the Water Commission of the State of Mexico and Operagua of Cuautitlán Izcalli, are part of a broader municipal program to clean rivers and ravines to protect vulnerable populations during the rainy season.

## Timeline

### 2026-08-13: SAPASA removes 40 tons of sediment from Ángulo Dam

SAPASA removed over 40 tons of sediment from the Ángulo Dam in Atizapán to prevent flooding during the rainy season.

2 sources. https://clstr.news/cluster/sapasa-removes-40-tons-of-sediment-from-ngulo-dam

### 2026-07-26: SAPASA removes 11,000 tons of waste from Mexico’s Presa Madín

SAPASA cleared 11,000 tons of waste and 193,000 m³ of silt from Presa Madín, reducing flood risk and improving water supply for Atizapán, Naucalpan and Tlalnepantla.

2 sources. https://clstr.news/cluster/sapasa-removes-11000-tons-of-waste-from-mexicos-presa-madn

---
Cite as: SAPASA flood prevention and sanitation efforts in Atizapán. CLSTR, https://clstr.news/situations/sapasa-flood-prevention-and-sanitation-efforts-in-atizapn