Long Rock water quality history

Explore historical Environment Agency samples and annual bathing water classifications for Long Rock in Cornwall.

Mounts Bay is on the south coast of Cornwall. There are four designated bathing waters located around the bay - Wherry Town, Penzance, Long Rock and Marazion. All the beaches are sandy resorts backed by sea defences. Heliport beach is approximately one kilometre wide. The Ponsandane Brook flows onto the western end of Heliport beach.

Available sample history
1988 to 2026
Samples
779
Latest official classification
Excellent (2025)

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Annual classification history

Official assessments and historical estimates are labelled separately. Missing years are not filled in.

Available annual results, newest first
YearClassificationAssessment source
2025ExcellentOfficial Environment Agency assessment
2024ExcellentOfficial Environment Agency assessment
2023GoodOfficial Environment Agency assessment
2022GoodOfficial Environment Agency assessment
2021GoodOfficial Environment Agency assessment
2019GoodOfficial Environment Agency assessment
2018GoodOfficial Environment Agency assessment
2017GoodOfficial Environment Agency assessment
2016ExcellentOfficial Environment Agency assessment
2015GoodOfficial Environment Agency assessment
2014GoodOfficial Environment Agency assessment
2013GoodOfficial Environment Agency assessment
2012GoodOfficial Environment Agency assessment
2011GoodOfficial Environment Agency assessment
2010ExcellentOfficial Environment Agency assessment
2009GoodHistorical estimate
2008GoodHistorical estimate
2007GoodHistorical estimate
2006GoodHistorical estimate
2005GoodHistorical estimate
2004GoodHistorical estimate
2003GoodHistorical estimate
2002SufficientHistorical estimate
2001SufficientHistorical estimate
2000SufficientHistorical estimate
1999PoorHistorical estimate
1998PoorHistorical estimate
1997PoorHistorical estimate
1996PoorHistorical estimate
1995PoorHistorical estimate
1994PoorHistorical estimate
1993PoorHistorical estimate
1992PoorHistorical estimate
1991PoorHistorical estimate
1990PoorHistorical estimate
1989Not assessedHistorical estimate
1988Not assessedHistorical estimate

Source: Environment Agency / Swimfo. Data retrieved 16 October 2026. Historical trends do not describe conditions today; check Swimfo and local notices for current advice.

Nearby bathing waters