Bruchertalsperre Mauer

Germany Lake 1 - Excellent

Bruchertalsperre is a reservoir bathing area located in the Oberbergischer Kreis region. The water body covers 46 hectares with a maximum depth of 20.1 metres and a rocky substrate. Water temperatures range from 10.3 to 24.0 degrees Celsius, with an average of 17.2 degrees Celsius. The bathing area has been classified as excellent for four consecutive years from 2019 to 2022.

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Water

Talsperre (reservoir) with an area of 46 hectares, maximum depth of 20.1 metres, and a mean depth that is unspecified. Water temperature ranges from 10.3 to 24.0 degrees Celsius with an average of 17.2 degrees Celsius. pH values range from 7.5 to 8.6, with a mean of 8.0. Conductivity ranges from 118 to 130 µS/cm with a mean of 125 µS/cm. Water transparency is 4.3 metres. Water exchange time exceeds 30 days. The water body is mesotrophic with natural nutrient levels classified as oligotrophic to mesotrophic. The catchment area is very small at less than 10 square kilometres. Water level fluctuations range from 2.5 to 5.6 metres.

Location

The bathing area is located at Bruchertalsperre/Mauer near Gummersbach, Germany. The bathing beach spans 310 metres along the shoreline. The operator is Wupperverband, located in Wuppertal.

Water Quality

Water quality was classified as excellent in 2019, 2020, 2021, and 2022. No pollution sources that negatively affect water quality were identified. No contamination in sediments is known, either microbiological or chemical. The risk of future cyanobacterial mass development is very low. The risk of macroalgae and phytoplankton mass development is very low.

Risks

No cyanobacterial blooms were observed in the preceding four years. The danger of future cyanobacterial mass development is very low. The danger of future macroalgae and phytoplankton mass development is very low. No occurrence of cercariae (duck parasites causing swimmer's itch) is known.