Mill and Dividing Creek Bacterial Monitoring 2016 Enterococci cfu/100 ml

  5/25 6/1 6/8 6/15 6/22+ 6/29^ 7/6 7/13^^ 7/20 7/27 8/3# 8/10 8/17* 8/24
M1 88 624 30  11380 900 8464 550 8300 500 400 500 60 540 100
M2 40 62 190 904 600 3320 140 2720 50 60 20 50 428 170
M3 6 2 32 46 800 440 20 2000 20 12 52 20 12 12
D1 76 300 360 1050 100 320 310 3320 300 200 360 1750 1080 60
D2 116 2 66 18 100 260 4 2170 40 10 10 84 36 8
D3 22 12 18 16 50 90 12 1680 50 4 8 18 36 2

+ Approximately 1 inch of rain fell within 24 inches before sampling.

^ 0.5 inches of rain fell the evening prior to sampling.

^^ Up to 0.5 inches of rain fell the evening prior to collection, and there were intermittent heavy rains during collections.

# Up to 0.5 inches fell about 48 prior to sampling

* 2 inches of rain fell approximately 40 before sampling.

water indicates recent contamination with fecal waste.  Counts are expressed as cfu or colony-forming units.  Counts greater than 104/100 ml are shown in red as they indicate that water is not suitable for recreational use. 

This work is funded by Anne Arundel County Dept. of Public Works.

 

 M1 and D1 are the furthest upstream tidal stations in Mill and Dividing Creeks while M3 and D3 are the furthest downstream stations.  Results are now posted on a larger map, click here for the map. 

These data may not be used in another publication without written permission of Sally Hornor.