This concerns the environment ministry and an alleged failure to sanction the municipal services agency.
The new employees have been taken on for the six months of the tourism season.
Since 2018, a Palma court has been investigating alleged illegal contamination by discharges.
The works will involve partial road closures and changes in the circulation of several bus lines.
The rate is two euros per square metre.
Reservoir capacity is well down on what it was this time last year.
The Guardia Civil conclude that there has been "institutional passivity".
Twelve tractors and up to forty volunteers will be disinfecting streets.
The town hall is following WHO guidelines; there is no risk of contagion from tap water.
A Palma councillor is under investigation for a possible environmental crime.
Emaya will be releasing water from the Gorg Blau reservoir on Thursday.
The water supply in Palma had three breakdowns at the weekend.
The work, it is said, will prevent 90% of the current spills of contaminated water.
"Without this help, the town hall cannot ensure that Palma is clean."
Companies and individuals were also penalised for leaving junk beside the containers in a bid to avoid paying recycling costs.
Slogans daubed on walls, including Carrer de Salvador Dalí, and Plaza Mayor have been removed.
Water was being drawn directly from the mains supply without being recorded by a meter or was being taken from a neighbour’s supply.