Biggesee Sondern Surfclub

Germany Lake 1 - Excellent

Biggetalsperre, Badestelle Sondern-Surfclub is an artificial reservoir located in North Rhine-Westphalia, Germany. The bathing area extends approximately 300 metres along the shore. The water body has a surface area of 800 hectares with a mean depth of 25 metres and maximum depth of 55 metres. Water temperature ranges from 16 to 23 degrees Celsius with an average of 19 degrees. Transparency varies between 2 and 7 metres with an average of 4 metres.

Reviews

No reviews yet.

Write a review

Photos

Upload a photo

Water

Artificial reservoir (Talsperre) with a surface area of 800 hectares. Mean depth is 25 metres; maximum depth is 55 metres. Water level fluctuations reach approximately 15 metres. The catchment area size ranges between 100 and 1000 square kilometres. Water exchange time exceeds 30 days. The substrate consists of sand and rocky areas. The water body is stratified with natural nutrient content classified as mesotrophic.

Location

Located near Olpe, North Rhine-Westphalia. The bathing facility is managed by Surf-Club-Sauerland. The responsible health authority is Kreis Olpe Gesundheitsamt, Westfälische Straße 75, 57462 Olpe.

Water Quality

Water quality classification: Excellent for years 2022, 2023, 2024, and 2025. No relevant pollution sources identified. pH values range from 7.4 to 8.7 with an average of 8. All potential discharge sources assessed including municipal treatment plants, domestic treatment systems, stormwater systems, and runoff from agricultural areas show no relevant influence on bathing water quality.

Risks

No observed harmful algal blooms from cyanobacteria in the past four years. Risk of future cyanobacterial mass development is assessed as absent. Risk of future phytoplankton mass development is assessed as low. No cercariae (duck itch) detected. No microbiological, chemical, or other sediment contamination identified.