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Beach Status -> Portland Area-> East End Beach -> Monitoring Data

Actual Enterococci Values Measured At Sites by Date:

Sample DateEnterococci CountTide StageWater TemperatureAir TemperatureSalinity
8/29/2017<10 LF  17.419.228
8/24/2017<10 LF  16.421.128
8/22/201797 MF  17.622.130
8/17/2017<10 ME  15.819.132
8/15/2017<10 ME  16.118.826
8/10/2017<10 LF  17.921.925
8/8/201710 MF  17.918.322
8/3/2017<10 HE  16.324.631
8/1/2017<10 ME  1624.330
7/27/201710 L  16.119.330
7/25/201740 MF  16.41826
7/20/2017<10 HE  16.824.831
7/18/201710 ME  19.615.531
7/13/201710 LF  15.218.131
7/11/201710 HF  14.923.430
7/6/201710 HE  15.822.732
6/29/2017<10 LF  14.421.6 
6/27/2017<10 MF  13.122.633
6/22/2017<10 H  12.22532
6/20/2017<10 ME  13.81831
6/15/2017<10 LF  15.719.224
6/13/2017<10 MF  13.33530
6/8/2017<10 HE  11.522.530
6/6/2017<10 H    25
9/6/201610 LF  17.319.233
9/1/201610 MF  20.817.234
8/25/2016<10 ME  17.322.333
8/23/201610 LF  17.121.934
8/18/201610 MF  17.820.430
8/16/2016<10 H  17.222.432
8/11/2016200 ME  16.820.831
8/9/201610 L  17.124.333
8/4/201610 HF  17.123.533
8/2/201610 MF  16.923.330
7/28/2016<10 ME  16.519.433
7/26/2016<10 LF  18.131.530
7/21/2016<10 LF    33
7/19/201620 HF  17.125.632
7/14/201631 HE  16.62433
7/12/2016<10 ME  15.82434
7/7/201620 MF  16.215.928
6/30/2016<10 ME  14.522.435
6/28/201610 L  19.220.528
6/23/2016<10 MF  16.322.327
6/21/2016<10 MF  13.827.231
6/14/2016<10 ME  1317.132
6/9/2016<10 LF  13.71632
6/7/2016959 MF  13.517.822
6/2/2016<10 HE  13.716.133
5/31/2016<10 LE  13.127.532
9/4/201510 LE  16.316.526
9/2/201510 L  161830
8/31/201550 MF  18.422.629
8/28/2015<10 HF  17.82134
8/26/201541 HE  17.32330
8/24/2015<10 ME  18.119.129
8/21/2015<10 MF  19.220.825
8/19/2015<10 LF  19.12328
8/17/201510 MF  20.224.534
8/14/201510 MF  16.821.831
8/12/201531 H  15.919.233
8/10/2015<10 HE  16.418.333
8/7/2015<10 ME  15.720.730
8/5/2015108 LF  18.123.128
8/3/2015<10 MF  2023.130
7/31/201541 MF  17.524.830
7/29/201520 H  17.822.230
7/27/2015<10 ME  15.81933
7/24/2015<10 ME  16.519.627
7/20/201530 LF  17.618.925
7/15/2015<10 H  15.22025
7/13/201552 ME  16.321.530
7/10/2015<10 ME  14.221.531
7/8/2015187 LE  13.821.630
7/6/201510 L  15.120.830
7/3/201510 MF  16.719.625
7/1/201563 MF  15.416.225
6/29/201530 ME  14.418.632
6/26/201510 LE  17.118.517
6/24/2015570 LE  1719.520
6/22/2015148 L  15.21725
6/19/201510 MF  15.319.325
6/17/201510 MF  13.716.227
6/15/2015<10 HF  12.21432
6/12/2015<10 ME  12.120.731
6/10/201510 ME  11.52130
6/8/2015<10 LE  10.913.131
6/5/201510 MF  12.712.125
6/3/2015146 MF  12.211.226
6/1/2015160 MF  11.59.529
8/29/201410 MF  17.516.324
8/27/2014<10 H  15.72731
8/25/2014<10 HF  16.324.129
8/22/201410 H  17.117.522
8/20/2014<10 ME  18.719.514
8/18/201441 LE  15.521.230
8/15/20142140 LF  16.515.720
8/14/2014340 HF  16.522.728
8/13/201462 MF  17.71923
8/11/2014<10 H  14.422.131
8/8/2014<10 H  2821.915.6
8/6/2014<10 ME  17.422.527
8/4/201420 ME  16.21825
8/1/201420 L  16.518.927
7/31/201431 MF  18.417.820
7/30/2014370 LF  16.816.722
7/25/2014<10 HF  15.320.330
7/23/201410 H  15.327.530
7/21/2014<10 ME  14.118.129
7/18/201410 LE  142131
7/16/2014285 LF  13.419.632
7/14/201410 HF  13.222.931
7/11/201410 H  13.618.530
7/9/2014<10 ME  11.92631
7/7/2014<10 ME  12.324.131
7/2/2014<10 MF  18.525.122
6/30/2014<10 MF  152228
6/27/201460 MF  15.219.325
6/26/201440 H  14.519.226
6/25/2014<10 HF  12.620.733
6/23/2014<10 ME  14.119.730.1
6/20/2014<10 ME  13.120.230
6/18/2014<10 LE  13.525.830
6/16/201410 MF  14.819.522
6/13/201420 MF  13.113.323
6/11/2014<10 HF  12.117.231
6/9/201410 ME  13.721.229
6/6/2014<10 ME  11.618.328
6/4/201410 L  12.813.627
6/2/2014<10 LF  12.914.822
5/30/201420 MF  11.612.321
5/28/201486 MF  10.39.423
9/6/201310 MF  16.917.330
9/4/201310 LE  18.327.231
8/30/201330 ME  15.918.232
8/29/201310 L  18.920.328
8/26/2013<10 MF  15.524.432
8/23/201310 MF  17.420.328
8/21/2013110 H  15.724.131
8/19/2013<10 ME  14.625.431
8/16/201310 ME  14.517.633
8/12/201310 MF  15.921.533
8/9/201310 MF  17.120.330
8/7/2013<10 MF  18.620.431
8/5/20131630 MF  15.818.231
7/31/201310 ME  18.624.723
7/29/201310 LF  18.119.326
7/26/201320 LF  16.117.132
7/24/2013275 MF  18.621.824
7/22/2013840 HE  17.520.730
7/19/201330 H  16.423.230
7/17/201310 ME  18.524.727
7/15/2013<10 LE  1827.625
7/12/201310 L  15.320.228
7/10/201310 MF  1816.523
7/8/201350 MF  19.323.823
7/5/201320 HF  15.123.828
7/3/201310 ME  1918.19.5
7/1/2013380 LE  18.220.215
6/29/2013980 MF  18.618.915
6/28/20131170 LF  15.714.822
6/26/201350 MF  14.621.630
6/24/2013200 MF  14.225.630
6/21/2013<10 MF  13.616.433
6/19/2013<10 ME  14.419.829
6/17/2013<10 ME  13.422.730
6/14/201320 LF  14.415.625
6/12/2013180 MF  14.416.623.5
6/10/201340 MF  16.118.8 
6/7/201320 MF  13.113.331
6/5/2013<10 HE  12.318.531
6/3/2013<10 L  14.223.730
5/29/2013<10 MF  11.51225
5/27/2013200 LF  10.39.324
9/7/201240 LE  15.618.928
9/5/201231 LF  15.821.430
8/31/201230 MF  16.123.930
8/29/2012<10 H  16.21832
8/27/2012<10 H  1621.132
8/24/201230 LE  16.520.631
8/22/2012<10 L  16.117.733
8/20/201220 MF  18.219.326
8/19/201210 MF  16.123.528
8/18/2012220 MF  16.420.131
8/17/20128160 MF  1918.318
8/15/20121106 HE  17.523.832
8/13/201230 H  17.82230
8/10/201210 ME  1921.832
8/8/201240 LE  17.919.633
8/6/201298 L  1725.732
8/3/2012<10 MF  17.919.226
8/1/201240 HF  16.22233
7/30/201210 ME  17.622.332
7/27/201220 ME  15.318.230
7/25/2012<10 LF  1623.730
7/23/201220 LE  15.419.832
7/20/201210 MF  17.418.129
7/18/2012<10 MF  18.523.227
7/16/2012<10 MF  17.82129
7/13/201210 H  15.920.235
7/11/2012<10 ME  18.319.520
7/9/2012<10 ME  14.819.826
7/6/2012295 LF  17.121.919
7/2/201210 HF  19.321.929
6/29/2012<10 HE  13.318.430
6/28/2012<10 MF  18.326.715
6/27/2012243 LF  16.121.522
6/25/201220 LE  16.519.622
6/22/201220 MF  19.221.811
6/20/2012<10 MF  16.420.410
6/18/2012<10 MF  15.813.76
6/15/2012<10 HE  15.818.217
6/13/201210 HE  12.215.930
6/11/201240 ME  1515.96
6/8/201274 LE  12.812.924
6/6/2012<10 MF  12.914.326
6/4/20128160 MF  12.811.75
6/1/201220 ME  15.519.128
5/30/201241 LE  16.515.220
8/29/201186 HF  16.720.527
8/26/201120 HF  16.220.533
8/24/201120 ME  17.219.432
8/22/201110 ME  16.819.124
8/19/2011140 ME  18.520.631
8/18/201110 HF  17.120.6 
8/17/2011200 LF  18.619.227
8/15/201110 MF  17.71930
8/12/2011<10 MF  17.819.432
8/10/201140 HF  17.116.732
8/8/2011<10 LE  17.825.831
8/5/201120 ME  16.618.131
8/3/201110 L  16.918.232
8/1/201150 LF  18.118.729
7/29/2011<10 MF  16.821.732
7/27/2011<10 H  15.518.231
7/25/2011<10 ME  17.120.132
7/22/201120 ME  15.128.733
7/20/201110 LE  15.718.832
7/18/201120 L  17.124.229
7/15/201110 MF  17.321.332
7/13/201150 H  15.925.431
7/11/201110 H  15.421.832
7/8/201140 ME  14.617.231
7/6/2011<10 L  15.119.731
7/4/201130 LF  15.417.424
7/1/2011<10 H  15.821.833
6/29/201140 ME  1818.527
6/27/2011<10 ME  17.422.9 
6/24/2011120 ME  13.312.231
6/22/2011<10 ME  1519.526
6/20/201110 LE  13.717.831
6/17/201110 HF  14.722.730
6/15/2011<10 HF  13.216.531
6/10/2011<10 ME  13.318.630
6/8/201120 L  1415.721
6/6/201110 L  12.51526
6/3/201110 MF  12.215.524
5/30/201120 ME  14.122.824
10/6/20101720 ME  13.912.933
10/4/2010<10 ME  13.912.134
10/1/201010 LE  1519.732.5
9/28/2010<10 MF  16.424.230
9/24/201010 MF  14.615.933
9/22/201010 H  15.624.333
9/20/2010<10 ME  1518.232
9/17/201010 ME  14.414.333.5
9/15/201010 ME  14.913.734
9/13/2010<10 L  14.414.633.5
9/9/201010 MF  15.116.132
9/7/201010 HF  15.118.833.5
9/3/201020 ME  17.62533
9/1/201050 ME  17.32333
8/30/2010<10 LF  18.525.828
8/27/201010 MF  17.320.329
8/25/201041 MF  17.417.529.5
8/23/201020 HF  16.917.731
8/20/2010<10 HF  16.31933
8/18/201010 HE  15.817.533
8/16/2010<10 L  15.319.333.5
8/13/201050 MF  18.117.229
8/12/201010 HF  16.321.432
8/11/2010484 MF  17.419.228
8/9/2010<10 H  15.423.733.5
8/6/201010 ME  1625.632
8/4/201010 ME  15.622.132
8/2/2010<10 LE  15.920.331.5
7/30/2010<10 L  15.218.234
7/28/2010<10 L  1620.932
7/27/2010<10 HF  16.826.935
7/26/2010110 MF  17.122.730
7/23/201097 MF  16.619.731
7/21/2010<10 H  15.817.433
7/19/2010<10 ME  16.620.732
7/16/2010<10 L  18.31933
7/15/2010<10 MF  17.325.131
7/14/2010121 MF  18.22027
7/12/2010<10 MF  17.82430
7/9/2010<10 HF  162332
7/8/201010 HE  14.720.533
7/7/2010130 H  15.42133
7/2/2010<10 L  14.619.732
6/30/2010<10 LF  16.622.426
6/28/201010 MF  14.815.929
6/25/2010<10 MF  15.92028
6/23/201010 HF  141630
6/21/201010 HE  13.12131
6/18/2010<10 ME  12.218.432
6/17/201080 MF     
6/16/2010816 LF  15.316.829
6/14/201010 LF  1213.729.5
6/11/201031 MF  12.212.927
6/9/2010<10 H  12.718.531
6/7/2010430 HE  1415.429
6/4/201010 ME  12.313.432
6/2/201030 LE  12.616.330
9/4/200920 MF  17.218.932
9/2/2009<10 HF  16.316.325
8/31/200931 HE  16.219.135
8/28/200931 ME  15.915.333
8/26/2009<10 LE  17.324.231
8/24/200963 H  17.421.630
8/21/200974 MF  19.82223
8/19/2009<10 MF  17.423.330
8/17/200910 HE  16.221.831
8/14/200910 ME  15.318.331
8/12/200910 ME  16.718.425
8/10/2009<10 L  15.717.530
8/7/200974 LF  15.818.325
8/5/200941 MF  19.122.218
8/3/200910 H  18.320.319
7/31/200910 H  17.720.919
7/29/200910 ME  15.721.128
7/27/200931 L  17.820.322
7/24/200920 L  15.415.222
7/22/200975 MF  15.417.825
7/20/200910 H  14.119.130
7/17/2009<10 HE  16.717.120
7/15/200984 ME  14.516.223
7/13/200910 ME  16.21717
7/10/200997 L  1517.415
7/8/2009680 MF  15.913.610
7/6/2009<10 MF  16.717.110
7/3/2009580 MF  14.913.510
7/1/2009145 HE  14.513.629
6/29/2009144 LE  15.21321
6/26/200920 L  14.31620
6/24/200910 HF  13.615.528
6/22/200973 MF  15.51615
6/19/2009260 HE  12.414.128
6/17/200910 ME    27
6/15/200985 MF    28
6/12/200950 MF  12.81225
6/10/200930 MF  12.81225
6/8/200910 MF  14.319.429
6/5/2009<10 HF  11.614.335
6/3/200920 H  10.114.233
6/1/2009<10 ME  10.49.435
8/29/200810 MF  1516.729.9
8/27/200810 H  1716.729.5
8/25/200810 ME  1516.728.9
8/22/2008<10 LE  1718.325.7
8/20/2008<10 MF  171918.2
8/18/2008<10 HF  1625.628.3
8/15/200860 MF  17168.9
8/13/200862 HE  171818.1
8/11/200810 ME   17.820.6
8/8/2008520 ME   15.614.5
8/6/200830 L  1718.323.4
8/5/2008112 LF  17.62020.6
8/4/2008663 LF  1619.221.5
8/1/200886 MF  16.718.823.3
7/30/2008<10 H  16.822.329.6
7/28/200810 HE  1419.229.7
7/25/2008<10 LE  17.522.328.4
7/23/2008<10 LF  16.523.323.6
7/21/200830 LF  1721.123.8
7/18/2008<10 MF  19.220.621.9
7/16/200810 MF  16.92529
7/14/2008<10 H  11.420.730.1
7/11/2008<10 ME  15.220.329.4
7/9/200810 ME  14.124.229.7
7/7/200840 L  15.617.328.2
7/2/200810 MF  14.919.428.2
6/30/200820 H  15.117.828.6
6/27/2008<10 ME  13.217.829
6/25/2008<10 ME  13.220.329.2
6/23/200810 L  1519.328.5
6/20/2008<10 MF  141624
6/18/200810 MF  13.516.327.6
6/16/2008<10 MF  12.715.329.1
6/13/2008<10 HE  1319.629.6
6/11/200820 ME  12.714.429.7
6/9/2008<10 LE  11.723.729.4
6/6/2008<10 MF  11.312.327.8
6/4/200860 MF  11.615.326.5
6/2/2008<10 HF  10.51730.3
8/31/2007<10 MF  18.122.527.9
8/29/2007<10 MF  18.720.825
8/27/2007<10 H  17.623.729.3
8/24/200720 HE  16.723.529.7
8/22/200741 ME  16.315.129.1
8/20/2007<10 LE  16.219.129.1
8/17/200720 LF  17.722.227.4
8/15/200710 MF  18.322.825.8
8/13/200731 MF  18.323.628.6
8/10/200720 ME  16.823.829
8/8/2007<10 ME  21.722.829.4
8/6/2007<10 LF  18.220.829.8
8/3/200741 L  17.324.430.6
8/1/2007<10 HF  17.827.229.6
7/30/200710 MF  1919.425.7
7/27/200752 HF  18.125.629.7
7/25/2007<10 LE  1822.828.5
7/23/200710 ME  17.817.825
7/20/200752 H  16.317.826
7/19/2007120 HF  17.417.824.8
7/18/2007504 MF  15.318.929.4
7/16/200731 MF  16.923.330.1
7/13/200720 MF  1518.929.7
7/11/200710 HE  13.916.730.7
7/9/200710 ME  13.713.931.1
7/6/200710 LE  13.317.830.1
7/5/2007<10 L  12.916.130.5
7/2/2007<10 MF  15.918.328.2
6/29/2007<10 MF  15.41527
6/27/2007<10 HF  13.725.629.9
6/25/2007<10 HE  13.516.130
6/22/2007<10 ME  13.721.229.3
6/20/2007<10 LE  14.718.326.6
6/19/2007<10 LE  13.418.929.4
6/15/200730 MF  14.111.720.4
6/13/2007<10 H  13.312.227.5
6/11/2007<10 HE  1219.728.7
6/8/200786 LE  12.817.222.4
6/7/2007<10 L  12.121.727.6
6/6/2007368 LE  121425.6
6/4/200730 MF  12.610.623.3
9/1/2006<10 ME  1616.130
8/30/200610 LE  1715.624.3
8/28/200675 L  1716.120
8/25/2006<10 MF  1715.625.4
8/23/200610 HF  1720.629.3
8/21/2006<10 HF  1717.228.6
8/18/2006<10 ME  1718.329.7
8/16/2006<10 ME  1719.430.1
8/14/2006<10 LE  1716.730
8/11/2006<10 MF  1919.427.5
8/9/200610 MF  1919.428.3
8/8/200631 MF  1921.228.3
8/4/2006<10 ME  1918.927.6
8/3/200610 ME  18.320.319
8/2/2006<10 ME  1927.228
7/28/2006<10 MF  2027.827.7
7/26/2006<10 MF  192623.6
7/25/200610 H  1924.428.9
7/24/2006134 HF  1922.227.3
7/21/200610 H  1819.427.1
7/19/200610 ME  192024.2
7/17/200641 ME  1923.322.8
7/14/2006323 MF  1928.319.6
7/12/200610 MF  192623
7/10/2006<10 HF  1521.729.3
7/7/2006<10 H  1619.427.2
7/5/200610 ME  1722.226.9
7/3/200641 ME  1620.623.6
6/30/200663 L  1717.218
6/28/200631 MF  172021.2
6/26/200673 MF  162014.3
6/23/2006<10 HF  152028.6
6/22/200610 H  1518.927.9
6/21/2006135 HE  1517.828
6/19/200620 ME  1618.910.6
6/16/2006<10 LE  1519.423.1
6/14/200610 MF  161612.2
6/12/200620 MF  1520.616.3
6/11/200630 HF  141528
6/10/2006181 HE  1413.913.6
6/9/2006633 HF  1414.414
6/7/200641 H  1412.815
6/6/200695 HE  1414.413
6/5/2006305 ME  1513.3 
9/2/200510 MF  1717.824.6
8/31/200563 HF  1621.128.3
8/29/2005<10 H  1619.430.2
8/26/2005<10 ME  1516.429.4
8/24/200531 LE  1617.229
8/22/200510 MF  1823.326.6
8/19/2005470 MF  1614.425
8/17/2005<10 HF  1616.728.6
8/15/200531 HE  1716.726
8/10/200520 LE  1621.130.1
8/8/2005<10 L  1622.229.5
8/5/2005<10 MF  1621.129.4
8/3/200510 MF  1721.124.9
8/1/200510 HF  1517.829.6
7/29/200520 ME  1517.230
7/27/200510 ME  152529.9
7/25/2005<10 L  1618.929.5
7/22/200552 MF  1725.624.9
7/20/200597 MF  1723.328.2
7/18/200510 H  1521.128.8
7/15/2005<10 ME  1522.227.2
7/13/2005<10 ME  1517.828.6
7/11/2005<10 LE  1523.328
7/8/2005<10 MF  151525.1
7/6/200541 MF  1719.418.8
7/5/200575 MF  1617.820.5
7/1/2005109 HE  1513.325.5
6/29/200530 ME  1421.128
6/28/200510 ME  1518.922
6/27/2005292 ME  1517.823
6/24/200520 HF  1524.227.2
6/22/200510 MF  1516.715.2
6/20/200510 MF  1413.924.4
6/17/200586 HE  131018
6/15/200563 ME  149.422.3
6/13/200520 ME  142521.8
6/10/2005<10 L  1417.218
6/8/2005<10 LF  142018
6/6/2005<10 MF  1110.617.3
9/8/2004<10 ME  1618.932.1
9/7/2004<10 ME  1514.432
9/3/200410 L  1612.830.1
9/1/2004<10 MF  1721.129.7
8/30/2004<10 MF  1717.826.5
8/27/2004<10 HF   1531.4
8/25/200410 HE   13.330.2
8/24/2004<10 MF  1823.920.2
8/23/2004231 ME  1513.322.1
8/20/2004<10 L  1521.130.8
8/18/2004<10 MF  1621.730.3
8/16/2004<10 HF  1618.929.7
8/13/200410 MF  152030.7
8/11/2004<10 H  1518.931.4
8/9/2004<10 ME  1516.130.8
8/6/2004<10 ME  1614.431
8/4/200420 L  162030
8/2/2004<10 MF  1726.731.3
7/30/200410 MF  1620.629.6
7/28/200410 H  161529.8
7/26/2004<10 ME  1616.131.7
7/22/2004<10 MF  1821.128.4
7/21/2004149 L  1617.824.4
7/19/2004<10 LF  1717.827.1
7/16/2004<10 MF  1617.226.1
7/14/2004<10 MF  1515.627.5
7/12/2004<10 H  1418.331.5
7/9/2004<10 ME  1416.131.2
7/7/2004<10 LE  1318.331.7
7/6/2004<10 L  1317.831.8
7/2/2004<10 H  132031.6
6/30/2004<10 HF  1217.831.5
6/28/2004<10 HE  1215.631.2
6/25/2004<10 ME  121531.3
6/23/2004<10 LE  1117.830.8
6/21/2004<10 L  1214.431.2
6/18/2004<10 MF  1420.624
6/16/2004<10 MF  1215.621.8
6/14/2004<10 HF  1013.331
6/11/2004<10 ME  1012.229.1
6/9/2004<10 ME  102230.6
6/7/200426 LE  91025.2
6/4/200412 HF  91529.3
5/27/2004<10 L  11  
9/3/2003<10 ME  1413.9 
9/2/200312 LE  1516.1 
8/29/2003<10 MF  1612.8 
8/27/200312 MF  1622.8 
8/25/2003<10 HF  1615 
8/22/2003<10 HE  1721.7 
8/20/2003<10 ME  1722.2 
8/18/2003<10 MF  2023.9 
8/15/2003<10 LF  1920.6 
8/13/200348 MF  1819.4 
8/11/200330 MF  1722.2 
8/8/2003<10 H  1518.9 
8/6/2003<10 ME  1519.4 
8/4/200312 ME  1517.8 
8/1/2003<10 LF  1616.7 
7/30/2003<10 MF  1617.8 
7/28/2003<10 MF  1618.3 
7/25/2003<10 H  1620 
7/23/2003<10 HE  1620 
7/21/2003<10 ME  1718.9 
7/18/2003<10 LE  1720 
7/16/2003<10 LF  1716.7 
7/14/2003<10 MF  1818.9 
7/11/2003<10 HF  1720 
7/9/2003<10 HE  1722.8 
7/7/2003<10 ME  2022 
7/2/2003<10 LF  1820 
6/30/2003<10 MF  1919.4 
6/27/2003<10 MF  1723 
6/25/2003<10 H  1520 
6/23/2003<10 HE  1414 
6/20/2003<10 ME  1415.6 
6/18/200312 L  1415.6 
6/16/2003<10 LF  1312.8 
6/13/2003<10 MF  1414 
6/11/2003<10 H  1216 
6/9/2003<10 ME  1215 
6/6/200322 ME  1215 
6/4/2003<10 L   14 
6/2/2003<10 LF  1112 
8/30/200236 ME  17  
8/28/2002<10 LE  17  
8/26/2002<10 MF  18  
8/23/2002<10 MF  18  
8/21/2002<10 MF  18  
8/19/200230 HF  18  
8/16/2002<10 ME     
8/14/2002<10 ME  17  
8/12/20021320 L  17  
8/9/2002<10 HF  18  
8/7/2002<10 MF     
8/5/200226 H     
8/2/2002<10 ME  17  
7/31/2002160 ME  16  
7/29/200218 LE  16.5  
7/26/2002<10 MF     
7/24/2002<10 MF  17  
7/22/2002<10 HF  15  
7/19/2002<10 ME  13  
7/17/200214 ME  13.5  
7/15/2002<10 LE     
7/12/2002<10 MF  13  
7/10/2002<10 MF  13  
7/8/2002<10 MF  13  
7/5/2002<10 HE     
7/3/200268 ME  15  
7/1/2002<10 ME  6  
6/28/200216 MF  13  
6/26/2002<10 MF  14  
6/24/2002<10 MF  13  
6/21/2002<10 H  12  
6/19/2002<10 ME  12  
6/17/2002420 ME  12  
6/14/200232 L  11  
6/12/200220 HF  10  
6/10/2002<10 MF  10  
6/7/2002132 HF     
6/5/2002<10 H     
6/3/200232 ME  10  
5/31/2002<10 LE  11  
5/29/2002<10 MF  11  
5/27/2002<10 MF  9  
8/31/2001<10 MF  16  
8/29/2001<10 ME  15  
8/27/2001<10 ME  15  
8/24/200110 LE  15  
8/22/200110 H  17  
8/20/2001114 HF  14  
8/17/20011200 HF  15  
8/15/200170 HE  15  
8/13/2001<10 ME  15  
8/10/2001<10 LE     
8/8/200126 H  16  
8/6/200110 HE  17  
8/3/2001<10 MF  16  
8/1/200110 HF  15  
7/30/2001<10 H  14  
7/27/200146 ME  14  
7/25/200116 H  15  
7/23/200132 ME  14  
7/20/200166 HF  15  
7/18/200138 HF  15  
7/16/200136 HE  14  
7/13/2001<10 ME  12  
7/11/200192 MF  15  
7/9/2001152 HF  13  
7/5/200114 MF  15  
7/2/2001<10 HF  13  
6/29/2001<10 ME     
6/27/200116 ME     
6/25/2001<10 HF  14  
6/22/200122 MF  14  
6/20/2001<10 H  15  
6/18/200122 H  14  
6/15/2001<10 ME  14  
6/13/200140 ME  12  
6/11/2001<10 MF  16  
6/8/2001<10 MF  12  
6/6/2001<10 HF  11  
6/4/200168 H  10  
9/1/2000<10 MF  17  
8/30/200010 MF  15  
8/28/20001200 MF  15  
8/25/200016 HE  15  
8/23/2000<10 LE  16  
8/21/2000<10 LF  16  
8/18/2000<10 MF  17  
8/16/2000<10 MF  16  
8/14/200012 MF  16  
8/11/20001200 HF  16  
8/9/2000<10 HE  16  
8/7/200012 ME  15  
8/4/200010 LE  15  
8/2/2000<10 MF  15  
7/31/200044 HF  15  
7/27/200024 ME  15  
7/26/2000<10 ME  15  
7/24/2000<10 ME  15  
7/21/2000<10 L  15  
7/19/2000<10 H  17  
7/17/200016 MF  15  
7/14/2000580 MF  15  
7/12/2000<10 H  14  
7/10/2000<10 ME  15  
7/7/200030 ME  13  
7/5/200032 H  14  
7/3/2000560 H  15  
6/30/200018 MF  13  
6/28/200026 H  13  
6/26/2000<10 ME  12  
6/23/2000<10 ME  11  
6/21/2000<10 HF  12  
6/19/200016 HF  13  
6/16/2000<10 MF  12  
6/14/2000<10 MF  11  
6/12/200028 HE  10  
6/9/2000128 ME  12  
6/7/200060 LE  11  
6/5/2000460 MF  13  
6/2/200010 MF  12  
5/31/2000160 HF  11  

Beach Program Water Quality Standards

The exceedance criteria, or level at which a sample fails, is 104 Enterococci bacteria per 100 milliliters of sample water, or Enterococci levels exceed the geometric mean of 35 counts of Enterococci per 100 mL of water in at least five samples collected over a 30-day period. This is one consideration for placing advisories at the beach. For the other considerations for advising against recreational water activities or for closing a beach click on How Beach Advisories are Determined.

The Maine Healthy Coastal Beaches Program is providing the State of Maine with a system to monitor public beaches and notify the public when there is a potentially hazardous condition.

The Maine Healthy Coastal Beaches Program ensures healthy, informed opportunities for swimming and other recreational water activities along the coast of Maine. Monitoring coastal water quality for swimming and other water contact usage is the responsibility of the local jurisdiction. It is not a mandated requirement from the State, nor does the State of Maine monitor public beaches other than those of their ownership.

Maine has 46 public beaches and recreational waters on its coast, of which 36 of these are participating in the Maine Healthy Coastal Beaches Program. The Maine Healthy Coastal Beaches Program is currently monitoring these waters, educating the public about potential health risks at these waters, and notifying the public when a disease-causing microorganism is present and may pose a health risk.

Maine’s Healthy Coastal Beaches Program will provide a current list of coastal beach advisories from participating towns/State Parks throughout the state. To view current beach advisories, go to Today’s Beach Status.

The towns and State Parks currently post beach advisories when sample analyses result in bacteria levels above the state standard, and the conditions warrant it, indicating the possible presence of disease-causing organisms. These advisories are recommendations to the public to avoid water contact activities at the beach until further analyses reveal safe conditions.

A decision to close or post beaches is based upon a Risk-Based Assessment Matrix tool to beaches for ongoing management decisions.

Beaches are not “closed” simply on the exceedance of the bacterial count, but on the Risk Assessment Matrix factors which includes bather numbers, time of last rainfall, and history of known problems. This is a coordinated decision between the Beach Manager, Program Coordinator, and State Epidemiologist.

The town/State Park beach managers may use their own discretion to actively close a beach to the public. The municipality/State Park must notify the Maine Healthy Coastal Beaches Program of their intentions to close or put up an advisory at a particular beach by indicating this on the on-line database.
The Healthy Coastal Beaches Program has produced a sign with attachments for advisory or closure to indicate a beach advisory. Click here to view samples of the signs.

What Is The Geometric Mean?

Many wastewater dischargers, as well as regulators who monitor swimming beaches and shellfish areas, must test for and report fecal coliform bacteria concentrations. Often, the data must be summarized as a "geometric mean" (a type of average) of all the test results obtained during a reporting period. Typically, public health regulations identify a precise geometric mean concentration at which shellfish beds or swimming beaches must be closed.

A geometric mean, unlike an arithmetic mean, tends to dampen the effect of very high or low values, which might bias the mean if a straight average (arithmetic mean) were calculated. This is helpful when analyzing bacteria concentrations, because levels may vary anywhere from 10 to 10,000 fold over a given period.

How do you calculate a geometric mean? The easiest way to think of the geometric mean is that it is the average of the logarithmic values, converted back to a base 10 number.

However, the actual formula and definition of the geometric mean is that it is the n-th root of the product of n numbers, or:
Geometric Mean = n-th root of (X1)(X2)...(Xn) Where X1, X2, etc. represent the individual data points, and n is the total number of data points used in the calculation.

Geometric Mean of Enterococci Counts
For East End Beach :


 

Click For more information on the Geometric Mean.

How will I know if it’s safe to swim at my local beach?

There are several ways to determine whether it’s safe to swim at a beach.

  • Check the Today’s Beach Status to see if the beach is listed. For further information, contact the Maine Healthy Coastal Beaches Program.
  • Contact the local beach manager for that town or State Park. Staff will be able to give you information on whether the beach is part of the Healthy Coastal Beaches Program and if water quality is monitored at that beach.
  • Look for any advisory/closure signs or other signs posted at the beach entrance or on the lifeguard stands. If there are no advisories (orange) or closures (red) posted, but there is an open (green) sign, this will indicate that this beach is open for recreation.
  • Contact your local health official. A health official may be able to inform you whether a beach advisory has been posted at the beach you plan to visit.