2019 Bathing Beach Water Test Results

The Braintree Health Department considers an individual bathing beach water sample with an enterococci count less than 104 acceptable for bathing/swimming in marine water.

Counts greater than 104 indicate the water is unacceptable for swimming/bathing and the beach will be posted as such. A 5-sample Enterococci Geometric Mean value greater than 35 also indicates the water is unacceptable for swimming/bathing.      

The Braintree Health Department considers an individual bathing beach water sample with an E. coli count less than 235 acceptable for bathing/swimming in fresh water.

Counts greater than 235 indicate the water is unacceptable for swimming/bathing and the beach will be posted as such. A 5-sample E. coli Geometric Mean value greater than 126 also indicates the water is unacceptable for swimming/bathing.  
N/A means not available.

*Rain event occurred within 24 hours of sample collection

Smith Beach

Marine (Salt) Water Beach
Sample Date Enterococci 
Count
 5- Sample 
Geomean
 Acceptable For
Bathing?
6/12/19 443* N/A NO
6/17/19 10 N/A YES
6/25/19 63 N/A YES
7/1/19 134 N/A NO
7/3/19 10 51.83 NO
7/9/19 63 35.09 NO
7/16/19 <10 30.55 YES
7/25/19 241 39.95 NO
7/30/19 20 27.31 YES
8/5/19 10 27.31 YES
8/12/19 <10 16.45 YES
8/21/19 10 18.90 YES

Sunset Lake

Fresh Water Beach
Sample Date E. Coli
​Count		 5- Sample
​Geomean		 Acceptable For
​Bathing?
6/12/19 35 N/A YES
6/17/19 52 N/A YES
6/25/19 20 N/A YES
7/1/19 48 N/A YES
7/9/19 16 24.01 YES
7/16/19 44 32.30 YES
7/25/19 80 35.20 YES
7/30/19 640 70.41 NO
8/5/19 1140 132.66 NO
8/6/19 156 209.19 NO
8/12/19 40 205.24 NO
8/15/19 12 140.44 NO
8/15/19 36 78.98 YES
8/21/19 76 45.95 YES