Fildewater supply
The Filderwasserversorgung (Fiwa) is a special purpose association that is responsible for the water supply of the western district of Esslingen in Baden-Württemberg . The association, founded in 1904 with ten member communities and around 134,000 people in the catchment area, is based in Neckartailfingen , where it operates the largest drinking water intake in the Stuttgart region .
history
Since the Filder is an area with little water and the local wells were no longer sufficient to supply the population, eight communities joined forces in 1904 to jointly build a water supply system. The Filderwasserversorgung was founded on March 14, 1904 by the communities of Degerloch , Möhringen , Vaihingen , Heumaden , Plieningen , Stetten , Plattenhardt and Bernhausen . The water was to be taken from the Neckar floodplains between Neckartailfingen and Neckarhausen, where plots were acquired for the construction of a drinking water intake and a pumping station. On December 21, 1904, Kaltental, Oberaichen, Unteraichen, Musberg, Leinfelden, Kemnat and Obersielmingen also joined the association.
On October 6, 1906, the pumping station in Neckartailfingen and the 24-kilometer main pressure line went into operation. It leads via Grötzingen, Plattenhardt, Leinfelden and Möhringen to Vaihingen. The catchment system consists of a 1000 meter long seepage pipe that runs to the left and right of the Neckar in a gravel bed up to 5 meters high. The costs amounted to 1.87 million marks, 15 percent of which were taken over by the Kingdom of Württemberg .
Other municipalities that joined the Filderwasserversorgung were Ruit on June 11, 1908 and Bonlanden and Harthausen on January 31, 1911. The municipal waterworks of the city of Stuttgart (later TWS ) were commissioned with the technical management of the systems in 1919 .
In 1926/27 another main pressure line was laid to the Bonlanden water reservoir. Other customers joined the association with Echterdingen , Birkach and Sillenbuch in 1934 and Stuttgart Airport in 1938.
After the incorporation of Degerloch, Heumaden, Möhringen Vaihingen, Plieningen and Birkach in the state capital Stuttgart, TWS there in 1943 took over the water supply. The local facilities of the Filder water supply (including the Degerloch water tower ) were assigned to the city of Stuttgart and an agreement was reached on the mutual exchange of water in times of crisis.
In the 1950s, Neuhausen (1950), Wolfschlugen (1950), Grötzingen (1951) and Aich (1957) followed. Because of this and due to the general increase in water consumption by the text came to their limits, which was built in 1953 dam caused only a slight improvement. They therefore became a member of the newly founded Bodensee-Wasserversorgung (BWV), from which the water for Oberaichen, Musberg and Leinfelden has been obtained since 1958, as the places were not far from the new main line from Lake Constance to Stuttgart.
In 1961, the Autmutgruppe became part of the Filderwasserversorgung. The communities Neckartenzlingen, Altdorf, Großbettlingen and Raidwangen belonged to it. Neckartailfingen has also been a member of the association since 1969. With the giant hill elevated tank in Echterdingen, a new transfer point was created from the BWV network in 1970.
In the meantime, the company's own pumping station, with an output of around 2.4 million cubic meters per year, only covers a third of the demand, two thirds are obtained from BWV. Should the Neckartailfinger pumping station fail or no longer be able to meet demand, there is another feed point for Lake Constance water on the Geigersbühl in Großbettlingen.
The technical management is now with the EnBW Regional AG, the legal successor of the NWS emerged from the TWS . In the last few years she was responsible for measures such as the renewal of the weir, the installation of an ultrafiltration system , the construction of the high-level reservoir in Stetten and the renewal of the main pressure line between Neckartailfingen and Harthausen.
The public utilities of Leinfelden-Echterdingen are entrusted with the management of the Filderwasserversorgung. The office is located in the old town hall in Musberg . The chairman of the Zweckverband, who was elected for a ten-year term of office, has been the mayor of Leinfelden-Echterdingen, Roland Klenk , since 2010 . His predecessors were Dr. Peter Bümlein (2001–2010), former Mayor of Filderstadt, and Rainer Häußler, former Mayor of Musberg.
Members
City districts in italics are not connected to the Filderwasserversorgungs network.
| local community | Origin of the water |
|---|---|
| Aichtal | Aich - Fiwa Grötzingen - Fiwa Neuenhaus - BWV, own monk's spring |
| Altdorf | Fiwa |
| Filderstadt | Bernhausen - BWV Bonlanden - BWV, Fiwa Harthausen - Fiwa Plattenhardt - BWV Sielmingen - Fiwa |
| Large bedlings | Fiwa |
| Leinfelden-Echterdingen | Echterdingen - BWV Leinfelden - BWV Musberg - BWV Oberaichen - BWV Stetten - BWV Unteraichen - BWV |
| Neckartailfingen | Fiwa |
| Neckartenzlingen | own source (50%) , Fiwa (50%) |
| Neuhausen on the Fildern | Fiwa (90%) , own Riedbrunnen spring (10%) |
| Ostfildern |
Kemnat - BWV Nellingen - BWV via SWE Ruit - BWV Parksiedlung - BWV via SWE Scharnhausen - BWV via EnBW Scharnhauser Park - BWV via SWE |
| Wolfschlugen | Fiwa |
criticism
The Neckar water obtained by the Filderwasserversversorgung is comparatively hard at around 21 ° dH ( hardness range 4), while the Lake Constance water is significantly softer at around 9 ° dH. After this fact became known to a broad public in 2006 through the press, the association was criticized for the fact that the same cubic meter price applies to both waters. Since the very calcareous Neckar water leads to higher consumption and consequential costs due to calcified pipes, bathrooms and household appliances that have to be cleaned frequently, a citizens' initiative called for “Lake Constance Water for All”. The Filderwasserversorgung saw this as a "problem of a prosperous society" and pointed out that the Neckar water was substantially of higher quality than the Lake Constance water, as it contained more calcium and magnesium. However, an expert opinion was commissioned which should show favorable possibilities of water softening . This has been available since autumn 2007 and suggests the installation of a nanofiltration system . On November 30th, 2009, the association assembly decided unanimously to build the facility. Now that the nanofilter has been installed, the water hardness has been reduced to 9.5 ° ie. On May 21, 2012, the system went into normal operation with the softened water.
In this context, it is also worth mentioning the wide price range for the water costs that the member municipalities charge their residents. While the gross cubic meter including wastewater charges in Wolfschlugen is a moderate 3.34 euros and in Altdorf with 3.59 euros, Großbettlingen with 4.82 euros and Aichtal with 4.70 euros are in the upper price segment of the greater Stuttgart area (national average: 3.93 euros; as of end of 2006).
literature
- Walter Meyer-König: 75 years of Fildewater supply 1904–1979. DRW-Verlag, Leinfelden-Echterdingen 1979.
- References
- ↑ Hard water employs Zweckverband. In: Stuttgarter Nachrichten. November 25, 2006
- ↑ Softer tones in the fight against hard water. In: Stuttgarter Zeitung. January 16, 2007
- ↑ Soft water for everyone in the Filderwasserverband? In: Nürtinger Zeitung. February 2, 2007
- ↑ Softer water flows in two years. ( Memento from September 10, 2012 in the web archive archive.today ) In: Filder-Zeitung. December 1, 2009, accessed December 23, 2009
- ↑ New water is popular with citizens
- ↑ The resistance is forming. In: Esslinger Zeitung. February 20, 2007
Coordinates: 48 ° 37 ′ 6 ″ N , 9 ° 17 ′ 6 ″ E