Mill and Dividing Creek Bacterial Monitoring 2011 Enterococci cfu/100 ml

  5/18 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*
M1 120 300 2620 130 370 340 1400 70 220 540 330 40 240 220
M2 32 52 112 24 104 44 3360 32 28 132 80 104 64 28
M3 28 28 4 4 60 132 420 2 12 172 16 28 28 36
D1 20 30 68 72 116 116 1480 60 104 140 228 28 56 76
D2 28 4 4 80 32 22 1420 28 8 292 16 8 8 68
D3 28 2 2 12 12 48 420 4 20 32 24
36 12 68

*6/29:  approx. 0.9" of rain within 18 hours of sampling; 7/20: approx. 0.4" of rain within 18 hours of sampling;            7/27: approx. 0.25" rain within 48 hours of sampling; 8/17: approx/ 0.3" of rain within 48 hours of sampling

Values greater than 104 are shown in red as they are considered unsafe for swimming.

Water samples are collected and analyzed by Sally Hornor and her students at Anne Arundel Community College. 

 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.

Sally G. Hornor, Prof. of Microbiology, AACC Environmental Center  410 777 2842, sghornor@aacc.edu