Písník Hradišťko

Czechia River 1 - Excellent

Písník Hradišťko is a gravel pit lake fed by Hluboký Stream from Sendražice and groundwater currents from the south. It is part of the Elbe inundation area. The bathing area has a sandy to grassy shoreline approximately 1,200 meters long, with a sandy bottom. The lake covers 0.275 square kilometers at an elevation of 193 meters above sea level.

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Water

Gravel pit lake with surface area of 0.275 square kilometers. Sandy bottom and sandy to grassy shoreline. Fed by Hluboký Stream and groundwater flow system from the south. Transparency values ranged from 0.1 to 1.8 meters across monitoring years.

Location

Veltruby municipality operates the bathing area. The nearest towns in the catchment area include Hradišťko, Sendražice, Ovčáry, and Býchory. Parking information is not specified.

Facilities

Facilities information is not provided.

Water Quality

Water quality is classified as excellent based on enterococcus and Escherichia coli microbiological indicators. Risks related to cyanobacteria (blue-green algae) were detected. Swimming bans were issued by the Regional Health Authority in August 2010 and July 2013 due to algal bloom occurrences. Phosphorus content was not assessed.

Risks

Cyanobacteria blooms were detected episodically. Swimming bans occurred in 2010 and 2013 due to water blooms with visible green coating and odor. Identified pollution sources include wastewater from settlements (Hradišťko, Sendražice, Ovčáry, Býchory), a poultry farm housing approximately 120,000 hens located 0.3 kilometers away, and a chicken fattening facility with approximately 80,000 birds also located 0.3 kilometers away. Swimmers themselves pose medium risk through bacterial contamination and nutrient input.