More than 1.2 million in funding from the Water Agency via France Relance has been provided for the improvement of sanitation and drinking water networks.
The TPM Metropolis had requested the Water Agency two years ago, three projects on the territory had been selected according to their maturity, financed up to 50%:
Sanitation, fight against the intrusion of parasitic clear water: Toulon, La Seyne-sur-Mer, Six-Fours-les-Plages, La Garde, Hyères;
Drinking water, fight against leaks and improvement of network performance for the Eastern sector: Carqueiranne and La Crau;
Drinking water, fight against leaks and improvement of network performance for the Center sector: Le Pradet.
In concrete terms, these operations on the networks of the Metropolis for a total amount of works of 2.5 million euros, made it possible to gain 10 to 15% of the volume of parasitic clear water in the sanitation networks; and achieve drinking water savings of approximately 1,100 m³ per year in Carqueiranne, 1,080 m³ per year in La Crau and 5,200 m³ per year in Le Pradet.
3 water-sanitation operations in the Métropole benefit from the France Relance plan
Under France Relance*, the Rhône Méditerranée Corse Water Agency has selected 3 projects to improve sanitation and drinking water networks in the TPM territory, financed up to 50%. The projects were selected for their maturity; expenditures to be incurred over two years, from 2020 to 2022.
These operations concerned the territories of:
Toulon, La Seyne-sur-Mer, Six-Fours-les-Plages, La Garde, Hyères (sanitation)
Le Pradet, La Crau and Carqueiranne (drinking water)
Type of intervention Eligible cost of the project Amount of aid France Relance
Drinking water supply East sector €835,997 €417,998 50%
Renewal of wastewater networks
(fight against clear water) €1,185,700 €592,850 50%
Drinking water supply Center Sector €492,500 €246,250 50%
Fight against clear water intrusions in sewerage networks, 9 worksites in La Seyne-sur-Mer, Six-Fours-les-Plages, Toulon, La Garde, Hyères
The diagnosis of the wastewater collection network highlights the presence of permanent parasitic clear water. These infiltrations lead to over-volumes to be transported and processed, and a saturation of the network, likely to cause malfunctions and overflows. The Métropole has embarked on a program to renew the wastewater networks. Sensitive sectors are identified by prior investigations: metrology, night routes, video inspections, etc. The operation having benefited from France Relance support concerns 9 worksites relating to sections of gravity collectors, dilapidated and degraded, on which the diagnoses have highlighted evidence of clear water inlets. The structures have been the subject of renewal or rehabilitation work using the trenchless technique, as well as replacement of manholes.
*In September 2020, to deal with the Covid-19 Coronavirus epidemic, the Government launched the France Relance system: an exceptional economic recovery plan of 100 billion euros – including 40 billion in European contributions – in order to recover quickly and sustainably the French economy around three aspects: ecology, competitiveness and cohesion.
The result of this work is a reduction of around 10 to 15% in the volume of parasitic clear water in the sectors concerned.
La Seyne-sur-Mer – Gambetta discharge station
Resumption of the entry structures of the station: manhole of arrival of the effluents and pipeline of transfer
Amount of work: €39,551 excl. tax
Completion period: May 2021
Result: night flow down by 15 m³/h or 290 m³/day
La Seyne-sur-Mer – Rue Nicolas Chapuis / Verlaque discharge station
Replacement of the substation entrance manhole, subject to heavy water infiltration through the joints
Implementation period: October to December 2021
Amount of work: €90,161 excluding VAT
La Seyne-sur-Mer – Rue de la Prairie / Chemin de l’Evescat in Les Sablettes
Renewal of the manifold (303 ml and 8 manholes) and 13 connections (44 ml)
Implementation period: December 2021 to March 2022
Amount of work: €323,155 excluding VAT
Six-Fours-les-Plages – Boulevard Faraud / Chemin du Petit Chrestian
Renewal of the manifold (398 ml and 19 manholes) and 26 connections (119 ml)
Implementation period: May to September 2021
Amount of work: €466,549 excluding tax
Six-Fours-les-Plages – Lombard Way
Renewal of the collector by trenchless technique: lining (515 ml)
Implementation period: September to October 2021
Amount of work: €146,921 excl. tax
Six-Fours-les-Plages – Font de Fillol bypass / Rue de Gabois
Manifold renewal (72 ml and 6 manholes)
Implementation period: June to July 2021
Amount of work: €237,264 excluding tax
Toulon – Rue André Blondel
Renewal of the collector by trenchless technique: lining (183 ml)
Implementation period: September to October 2021
Amount of work: €70,312 excl. VAT
La Garde – Street of the 1st Marine Infantry Battalion of the Pacific
Renewal of the collector by trenchless technique: lining (119 ml)
Implementation period: September to October 2021
Amount of work: €38,156 excluding tax
Hyères – Airport Road
Renewal of the collector using a trenchless technique: lining (515 ml and 13 manholes) and renewal of 13 connections (70 ml)
Implementation period: September to October 2021
Amount of work: €255,434 excluding tax
Supply works, fight against leaks on the drinking water network – East sector
The operation, which benefited from the support of France Relance, concerns 4 drinking water supply network renewal sites. The objective pursued is to fight against leaks (improvement of network performance) and preserve the resource. The result of this work is a water saving of approximately 1,100 m³ per year in Carqueiranne and 1,080 m³ per year in La Crau.
Carqueiranne – Boulevard Foch and Boulevard Leclerc
Renewal of the DN 125 cast iron network (630 lm) and 22 connections
Implementation period: January to June 2021
Amount of work: €206,711 excl. tax
La Crau – Liberation Avenue
Renewal of the DN 100 cast iron network (255 lm) and 26 connections
Implementation period: March to May 2021
Amount of work: €163,307 excl. tax
La Crau – Tourisse district
Renewal of the DN 100 cast iron network (401 lm) and 52 connections
Implementation period: July 2021 to May 2022
Amount of work: €226,965 excluding tax
La Crau – Rue des Iris
Renewal of the DN 100 cast iron network (301 ml) and 22 connections
Implementation period: November 2021 to February 2022
Amount of work: €132,762 excluding tax
Supply works, fight against leaks on the drinking water network – Center sector
The operation which benefited from the support of France Relance concerns 2 work sites for the renewal of drinking water supply networks. The objective pursued is to fight against leaks (improvement of network performance) and preserve the resource. The result of this work is a water saving of approximately 5,200 m³ per year in Le Pradet.
Le Pradet – Rue Claude Debussy / Rue Victor Coste
Renewal of the DN 100 cast iron network (220 lm) and 13 connections
Implementation period: September 2021 to January 2022
Amount of work: €125,775 excluding tax
Le Pradet – Boulevard de Lattre de Tassigny
Renewal of the DN 150 cast iron network (730 ml), removal of an old DN80 pipe and resumption of the 22 connections to the new network.
Implementation period: September 2021 to May 2022
Amount of work: €356,663 excluding tax
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