Curve Lake Henry's Gumming

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Peterborough Public Health monitors recreational water quality at sites in this region. Sampling season starts early June and ends Labour Day Weekend. Water samples are collected daily at two beaches, weekly at 15 beaches and monthly at five beaches. Water at all sites is sampled for E. coli. Peterborough Public Health issues beach advisories when the geometric mean concentration of at least five samples is at least 200 E. coli / 100 mL of water or when a single sample is at least 400 E. coli / 100 mL of water. This guideline comes from Canada’s Guidelines for Canadian Recreational Water Quality (2012). It is applied to beaches in Ontario in accordance with Ontario’s Recreational Water Protocol, 2018. Prior to 2018 beaches in Ontario were posted when the geometric mean of 5 samples collected on the sampling day exceeded 100 E. coli / 100 mL of water. Results are posted to the health unit’s website as soon as lab results are available and then updated on Swim Guide. The results are available at http://www.peterboroughpublichealth.ca/your-health/beaches-and-pools/beach-testing-results/. In Swim Guide, a beach is marked Green when the geometric mean of at least 5 samples is below 200 E.coli / 100 mL water and each individual sample concentration are below 400 E.coli / 100 mL. A beach is marked Red when the results are equal to or above a geometric mean of 200 E.coli / 100 mL water and/or 400 E.coli / 100 mL. A beach is marked Grey when there are no current results or there is no available information. http://www.peterboroughpublichealth.ca/your-health/beaches-and-pools/beach-testing-results/. A Ministry of the Environment Procedure (F-5-5) says that a clean beach is open at least 95% of the swimming season, even if it is near a sewage pipe or combined sewer outfall. This rule applies to every place that is public, accessible, and feels like a good place to swim. When all else fails, the Ontario Environmental Protection Act strongly states that no one can interfere with the use that you can make of a public waterway - like swimming! DISCLAIMER: Historical data from 2017 and prior reflect the previous Ontario standard of a geometric mean of 100 E. coli /100 mL. Historical data from 2018 onward reflect the new Ontario Operational Approaches for Recreational Water Guideline, 2018: Geometric mean concentration 200 E. coli/ 100 mL and single-sample maximum concentration of 400 E. coli /100 mL.