Ergolz
Encyclopedia
The Ergolz is the main river in the canton of Basel-Landschaft. It rises on Mount Geisflue in the Faltenjura mountains in the upper region of Basel-Landschaft, on the border with Aargau
and Solothurn
, and joins the Rhine at Augst
. Among the tributaries of the Ergolz are Eibach, Homburgerbach, Diegterbach,Frenke (Anterior and Posterior Frenke), Orisbach, Röserenbach and Violenbach
.
. During these more than 70 years, the avarage flow towards the Rhine was 3.73 m³/s. During 2006, the average flow was 5.63 m³/s. The peak in theat year was on 10 April 2006, at 134&nbps; m³/s. The extreme values measured at Liestal were a minimum of 0.1 m³/s (in 1947) and a maximum of 155 m³/s (in 1999).
city of Augusta Raurica
. To this end, an aquaduct was constructed, which began upstream of today's Liestal
. Parts of the aquaduct still stand today. Two places where the aquaduct can be visited and walked today, are in the Heidenloch district of Liestal and north-east of the sewage treatment plant in Füllinsdorf
.
The Ergolz was increasingly polluted
during the first half of the 20th century. From 1960 onwards, polllution was countered by the construction of sewage treatment plants.
Aargau
Aargau is one of the more northerly cantons of Switzerland. It comprises the lower course of the river Aare, which is why the canton is called Aar-gau .-History:...
and Solothurn
Solothurn
The city of Solothurn is the capital of the Canton of Solothurn in Switzerland. The city also comprises the only municipality of the district of the same name.-Pre-roman settlement:...
, and joins the Rhine at Augst
Augst
Augst is a municipality in the district of Liestal in the canton of Basel-Country in Switzerland.It was known as Augusta Raurica in roman times-History:...
. Among the tributaries of the Ergolz are Eibach, Homburgerbach, Diegterbach,Frenke (Anterior and Posterior Frenke), Orisbach, Röserenbach and Violenbach
Violenbach
Violenbach is a river of Lower Saxony, Germany....
.
Numerical data
Since 1934 the water level and discharge of the Ergolz have been measured at LiestalLiestal
Liestal is the capital of the canton of Basel-Country in Switzerland, south of Basel.It is an industrial town with a cobbled-street Old Town.-History:...
. During these more than 70 years, the avarage flow towards the Rhine was 3.73 m³/s. During 2006, the average flow was 5.63 m³/s. The peak in theat year was on 10 April 2006, at 134&nbps; m³/s. The extreme values measured at Liestal were a minimum of 0.1 m³/s (in 1947) and a maximum of 155 m³/s (in 1999).
History
The river supplied drinking water ot the RomanRoman Empire
The Roman Empire was the post-Republican period of the ancient Roman civilization, characterised by an autocratic form of government and large territorial holdings in Europe and around the Mediterranean....
city of Augusta Raurica
Augusta Raurica
Augusta Raurica is a Roman archaeological site and an open-air museum in Switzerland. Located on the south bank of the Rhine river about 20 km east of Basel near the villages of Augst and Kaiseraugst, it is the oldest known Roman colony on the Rhine....
. To this end, an aquaduct was constructed, which began upstream of today's Liestal
Liestal
Liestal is the capital of the canton of Basel-Country in Switzerland, south of Basel.It is an industrial town with a cobbled-street Old Town.-History:...
. Parts of the aquaduct still stand today. Two places where the aquaduct can be visited and walked today, are in the Heidenloch district of Liestal and north-east of the sewage treatment plant in Füllinsdorf
Füllinsdorf
Füllinsdorf is a municipality in the district of Liestal in the canton of Basel-Country in Switzerland.-History:Füllinsdorf is first mentioned in 825 as Firinisvilla. In 1225-26 it was mentioned as Vilistorf.-Geography:...
.
The Ergolz was increasingly polluted
Water pollution
Water pollution is the contamination of water bodies . Water pollution occurs when pollutants are discharged directly or indirectly into water bodies without adequate treatment to remove harmful compounds....
during the first half of the 20th century. From 1960 onwards, polllution was countered by the construction of sewage treatment plants.