After the disaster at the Casan reservoir (Companhia Catarinense de Águas e Saneamento), which erupted on September 6, the scientific police of Santa Catarina concluded that there was a “clear flaw” in the project and in the control of the company carried out by Gómez. and Gomez Engenharia.
The opinion was presented on Tuesday (21) in Alyeska (Legislative Assembly of Santa Catarina).
The Kazan Reservoir disaster destroyed hundreds of homes and cars – Photo: Leo Munoz/NDDuring the examination, according to expert Cassiano Facinello Bremma, regional superintendent of the scientific police of Florianópolis, measurements were taken and the differences between the project prepared for the reservoir and the project implemented by the construction company were analyzed.
According to the Science Police’s findings, there was a “clear failure in the implementation of the project, especially in the reinforcement connecting the pillars to the concrete canopies.” [paredes]” There was also a check, since, according to Bremm, “the error was easy to detect.”
The expert indicated that the main reason for the rupture was failures in the execution of the stirrups, which were made with a smaller diameter and a larger pitch than specified in the design.
In addition, during the investigation of the Scientific Police, negative stripes were not found, which should have been 16 millimeters for every 15 centimeters. It was this combination that was cited as the cause of the wall’s delamination, the expert said.
Photos of the destruction of the reservoir:
Regarding the quality of the concrete used in the tank, the results of laboratory tests showed unsatisfactory durability. However, the expert emphasized that even with lower resistance, the quality of concrete is not the cause of destruction.
The meeting on Tuesday was attended by the rapporteur of the joint committee, MP Mario Motta (PSD); chairman of the committee, deputy Ivan Naats (PL); Vice President Marchito (Psol) and member of the group, MP Lunelli (MDB). Lunelli concluded by saying that this is yet another case of public sector corruption.
In response to a question, Kazan said he would take a position only after a full investigation of all those involved has been completed.
“The work of the scientific police is part of this process, the investigation is not yet completed. There are at least two main lines of investigation. One of them is the investigation launched by the Civil Police and the Scientific Police. Responsibility for the other front will be assigned to the Santa Catarina Ministry of Justice,” the company concludes.
When contacted, Gomes & Gomes, the construction company responsible for the work, said it did not have access to the report submitted and would only take a position once the document was in hand.
Rupture of the Kazan reservoir
Following the breach of the Casan reservoir in the Monte Cristo area of Florianópolis on September 6, the community of Sape in the Jardim Atlantico area was severely punished. About 170 people were left homeless and their houses were destroyed due to the pressure of the water.
The reservoir, located in the continental region of Florianópolis, is capable of storing 4 thousand cubic meters of water (about 8 million liters).
In addition, according to the company, another 280 families were affected and turned to the company for help, be it food or housing.
Changing your email
In accordance with NDTV reporterPaulo Müller, Kazan and the company responsible for building the reservoir exchanged emails. Exchanges of messages show that about 16 months before the collapse, the company contacted construction company Gomes & Gomes to “urgently” repair the tank.
In total, Casan signed a contract with Gomes & Gomes for the construction of three reservoirs. Besides the one that failed, two others are still operating in the municipality of San José in Greater Florianópolis.
The reservoir opened in March 2022, and the email exchange took place on May 10, 2022, just two months after the site opened. Kasan told the construction company that the Civil Defense and CBMSC (Military Fire Service of Santa Catarina) inspected the site at the request of residents and identified intrusions into the reservoir.
When Casan’s Director of Operations and Expansion Pedro Joel Horstmann was asked this September, he could not answer why, even after such damage to the reservoir, it continued to be filled. The director notes that after warnings from the Department of Civil Defense and the Fire Department, the structure was emptied to avoid collapse, but on the advice of Gomes & Gomes it was filled again.
Source: Ndmais