The water quality of Zegerplas Speelvijver at Alphen aan den Rijn
What is the swimming water like? Zegerplas Speelvijver? On the water map below you'll see the swimming location in its immediate vicinity. On the right of on this page you will find all information about the current weather, at the bottom of the swimming spots in the area.
Open the Water Map for Alphen aan den Rijn in full window
The Zegerplas is located on the east of Alphen on den Rhine. The plas is part of a recreation area that on the west side is bounded by the urban area of Alphen on den Rhine.
Swimming spots nearby
2. Zegerplas zuidoever: water quality is warning
The weather in Alphen aan den Rijn, now:
5.3°C
Licht bewolkt
Wind Force bft | Knopen | 2 km/h
Wind direction NO
Today: Droog, af en toe zon en vooral in het zuiden warm.
Extended weather forecast for Alphen aan den Rijn (click)
Staying in the area?
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Swim at Zegerplas Speelvijver
Summary
Measurements
E.coli30 n/dl
Enterococci15 n/dl
Cause
Ontraden blauwalg
Ontraden blauwalg
Water temperature~17.1 °C
Measurement timeQuality: 04-05-2026Temperature: 8 mei, 20:10
Facilities & contact
Showers
WC / Toilets
Waste bins
Sandy beach
Fresh water
Bicycle shed
Information board
WC / Toilets
Waste bins
Sandy beach
Fresh water
Bicycle shed
Information board
Address
Sportlaan, Alphen aan den Rijn
Administrator
Gemeente Alphen aan den Rijn
gemeente@alphenaandenrijn.nl
Phone: 14 0172
Sportlaan, Alphen aan den Rijn
Administrator
Gemeente Alphen aan den Rijn
gemeente@alphenaandenrijn.nl
Phone: 14 0172
Information board
Details
The water temperature value comes from the nearest official Rijkswaterstaat measuring station and is an approximation for this location. Always take local conditions into account, it is usually colder in deeper water than on the shore!
The water quality measurement is based on the amount of bacteria in nanograms per deciliter (n /dl). In this case it concerns the intestinal bacteria Escherichia coli (E.coli) and intestinal enterococci, which occur in the feces of both animals and humans. A suddenly high value is often related to bird droppings in the water, for example, but can certainly also have other causes. It is unwise to swim in water where these values exceed the standards. The water manager also inspects the bathing water areas for other types of pollution, such as blue-green algae or other toxic algae and general safety features.
The water quality measurement is based on the amount of bacteria in nanograms per deciliter (n /dl). In this case it concerns the intestinal bacteria Escherichia coli (E.coli) and intestinal enterococci, which occur in the feces of both animals and humans. A suddenly high value is often related to bird droppings in the water, for example, but can certainly also have other causes. It is unwise to swim in water where these values exceed the standards. The water manager also inspects the bathing water areas for other types of pollution, such as blue-green algae or other toxic algae and general safety features.