Although its reservoir is important for water storage , it has had serious problems with pollution from industrial waste .
The main dam for the municipality is the El Centenario Dam , located just south of the town of Tequisquiapan .
Although Tequisquiapan 's reservoir is important for water storage , Tequisquiapan has had serious problems with pollution from industrial waste .
The main dam for the municipality is the El Centenario Dam , located just south of the town of Tequisquiapan .