Enterococci Results for Mill and Dividing Creeks

Summer 2008

All results are shown as Enterococci/100ml

 

Station

5/22

5/28

6/4*

6/11

6/18

6/25

7/2

7/9

7/16

7/23

7/30

8/6

8/13

8/20

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

M1

340

780

15300

1480

1940

580

1800

140

1340

1600

1920

1700

1800

200

M2

20

300

4000

5800

200

120

100

9

400

150

588

320

190

110

M3

20

8

1000

40

40

10

9

3

3

8

8

32

4

4

D1

50

70

1360

500

160

20

310

90

180

200

570

550

60

30

D2

12

28

1080

20

16

30

10

8

3

3

4

8

8

3

D3

3

40

220

400

28

10

9

3

3

8

3

28

3

3

M6

100

170

2580

450

520

1080

390

5

150

540

430

420

220

100

M7

40

110

1980

350

140

1000

1470

10

50

390

260

230

150

50

 

*6/4: 0.94” of rain within 24 hours of sampling. On 6/5, 2,477 gallons of sewage were released into Mill Creek from the Haskell Dr. pumping station, which is across the creek from M2. 

 

The level considered “safe” for swimming is less than 105 enterococci/100 ml; counts exceeding this value are shown in red. 

 

Water samples are being collected and analyzed by Sally Hornor at Anne Arundel Community College at the request of the Mill Creek Scientific Review Committee to allow continued monitoring of bacterial trends in Mill and Dividing Creeks.  This project is funded by Anne Arundel County Dept. of Public Works.   

 

Maps of these stations are now available, courtesy of BayLand Consultants and Designers Inc: a map of Mill and Dividing Creek watersheds showing sampling locations, a close-up version of this map showing only the tidal stations, and a map showing the location of M6 and M7 in relation to the tidal stations is available here.  All stations are the same as previously sampled during the course of this study.  M1 and D1 are the furthest upstream tidal stations in Mill and Dividing Creeks while M3 and D3 are the furthest downstream stations.  M7 is just upstream of the Mill Creek pumping station while M6 is just downstream.  

 

Sally Hornor, Ph. D.

Professor of Microbiology

AACC Environmental Center

410 777 2842

sghornor@aacc.edu