Santiago do Cacém
Tap water in Santiago do Cacém is medium risk. Usually fine, but some tests failed or were missed.
Is it safe?
CM de Santiago do Cacém e Águas de Santo André
Medium risk
Usually fine, but some tests failed or were missed
Safe-water score 98.78% in 2025. It was 99.1% in 2024.
Supplied by CM de Santiago do Cacém e Águas de Santo André.
About 27,772 people. 2,371 tests.
Over a limit at least once in 2025: Chlorate, Coliform bacteria, Chloride, Manganese, Sodium, Conductivity, Iron, Trihalomethanes (chlorine by-products).
Hardness: Moderate (20 °f).
Source
ERSAR, Portugal’s water regulator (RASARP 2026).
Period covered: 2025.
Covers all 278 municipalities in mainland Portugal. The safe-water score is the share of required tests that were done and met the legal limits in 2025. 99% or above is rated low risk. Hardness is the typical level measured by the main supplier.
Common questions
Can I drink the tap water in Santiago do Cacém, Alentejo?
Tap water in Santiago do Cacém is medium risk. Usually fine, but some tests failed or were missed.
Where do these ratings come from?
ERSAR, Portugal’s water regulator (RASARP 2026). Period covered: 2025.