Event Date |
CSO Number |
Outfall Location |
Potentially Affected Area |
Start Time |
Stop Time |
Duration |
Volume (million gallons) |
Event Rainfall (inches) |
Notice |
05.20.2023 |
CAM001 |
Alewife Brook |
Downstream of Massachusetts Ave Bridge across from Murry Hill Road |
11:50 pm |
1:58 am |
2 hours, 8 minutes |
0.05 MG (estimated average of last three years) |
TBD |
Alert |
05.20.2023 |
CAM401B |
Alewife Brook |
Upstream of the Massachusetts Ave Bridge |
11:37 pm |
1:32 am |
1 hour, 55 minutes |
0.32 MG (estimated average of last three years) |
TBD |
Alert |
05.20.2023 |
CAM005 |
Charles River |
Downstream of the Eliot Bridge across from Mount Auburn Hospital |
11:36 pm |
12:51 am |
1 hour, 15 minutes |
0.28 MG (estimated average of last three years) |
TBD |
Alert |
05.20.2023 |
CAM401A |
Alewife Brook |
Upstream of the confluence with the Little river and upstream of the Route 2 Bridge |
11:20 pm |
1:47 am |
2 hours, 27 minutes |
0.66 MG (estimated average of last three years) |
TBD |
Alert |
05.01.2023
(Rev)
|
CAM401A |
Alewife Brook |
Upstream of the confluence with the Little River and Upstream of the Route 2 Bridge |
12:51 am
(1:00 am)
|
1:15 am
(1:30 am)
|
24 minutes
(30 minutes)
|
0.66 MG (estimates average of last three years)
(0.05 MG)
|
1.52" |
Alert |
03.14.2023
(Rev)
|
CAM401A |
Alewife brook |
Upstream of the confluence with the Little River and Upstream of the route 2 Bridge |
7:11 am
(9:00 am)
|
12:46 pm
(12:30 pm)
|
5 hours, 35 minutes
3 hours, 30 minutes)
|
0.66 MG (estimated average of last three years)
(0.42 MG)
|
2.5" |
Alert |
03.14.2023 |
CAM007 |
Charles River |
Downstream of the Eliot Bridge across from Hawthorne Street |
NA |
NA |
NA |
NA |
2.5" |
Retraction
Alert
|
03.02.2023 |
CAM401A |
Alewife Brook |
Upstream of the confluence with the Little River and upstream of the Route 2 Bridge |
NA |
NA |
NA |
NA |
0.70" |
Retraction
Alert
|
01.26.2023
(Rev)
|
CAM401A |
Alewife Brook |
Upstream of the confluence with the Little River and upstream of the Route 2 Bridge |
2:05 am
(2:15 am)
|
4:15 am |
2 hours, 10 minutes
(2 hours)
|
0.78 MG (estimated average of last three years)
(0.09 MG)
|
1.08" |
Alert |
12.23.2022
(Rev)
|
CAM401A |
Alewife Brook |
Upstream of the confluence with the Little River and upstream of the Route 2 Bridge |
12:55 am
(12:59 am)
|
1:36 am
(1:19 am)
|
41 minutes
(20 minutes)
|
0.78 MG (estimated average of last three years)
(< 0.01 MG)
|
1.85"
(1.73")
|
Alert |
11.30.2022
(Rev)
|
CAM401A |
Alewife Brook |
Upstream of the confluence with the Little River and upstream of the Route 2 Bridge |
7:20 pm
(7:19 pm)
|
7:36 pm
(7:39 pm)
|
16 minutes
(20 minutes)
|
0.78 MG (estimated average of last three years)
(0.09MG)
|
0.73
(0.82")
|
Alert |
11.16.2022 |
CAM401A |
Alewife Brook |
Upstream of the confluence with the Little River and upstream of the Route 2 Bridge |
(7:11 am) |
(7:41 am) |
30 minutes |
(<0.01 MG) |
(0.94") |
Not issued
|
10.18.2022 |
CAM401A |
Alewife Brook |
Upstream of the confluence with the Little River and upstream of the Route 2 Bridge |
(2:25 am) |
(2:35 am) |
(10 minutes) |
(<0.01 MG) |
(0.35") |
Not issued |
10.14.2022
(Rev)
|
CAM005 |
Charles River |
Downstream of the Eliot Bridge, across from Munt Auburn Hospital
|
9:10 am
(9:15 am)
|
10:55 am
(9:30 am)
|
105 minutes
(15 minutes)
|
0.40 MG (estimated average of last three years)
(0.03 MG)
|
1.83" |
Alert |
10.14.2022
(Rev)
|
CAM401A |
Alewife Brook |
Upstream of the confluence with the Little River and upstream of the Route 2 Bridge |
9:05 am
(9:22 am)
|
10:05 am
(9:52 am)
|
60 minutes
(30 minutes)
|
0.78 (estimated average of last three years)
(0.19 MG)
|
1.83"
(1.70")
|
Alert |
09.19.2022 |
CAM401A |
Alewife Brook |
Upstream of the confluence with the Little River and upstream of the Route 2 Bridge |
(9:35 pm) |
(9:45 pm) |
(10 minutes) |
(0.01 MG) |
(0.29") |
Not issued |
08.26.2022
(Rev)
|
CAM401A |
Alewife Brook |
Upstream of the confluence with the Little River and upstream of the Route 2 Bridge |
4:40 pm
(4:37 pm)
|
4:55 pm
(4:57 pm)
|
15 minutes
(20 minutes)
|
0.78 (estimated average of last three years)
(0.12 MG)
|
0.50"
|
Alert |
08.26.2022
(Rev)
|
CAM005 |
Charles River |
Downstream of the Eliot Bridge, across from Mount Auburn Hospital |
(4:45 pm) |
(5:00 pm) |
(15 minutes) |
(0.01 MG) |
0.50" |
Not issued |
08.05.2022 |
CAM401A |
Alewife Brook |
Upstream of the confluence wih the Little River and upstream of the Route 2 Bridge |
(4:44 pm) |
(4:54 pm) |
(10 minutes) |
(<0.01 MG) |
(0.10") |
Not issued |
06.27.2022
(Rev)
|
CAM005 |
Charles River |
Downstream of the Eliot Bridge, across from Mount Auburn Hospital |
2:05 pm
(2:00 pm)
|
2:15 pm |
15 minutes |
0.01 |
0.79" |
Alert |
04.19.2022 |
CAM005 |
Charles River |
Downstream of the Eliot Bridge, across from Mount Auburn Hospital |
4:35 am
(4:00 am rev)
|
6:00 am |
120 minutes |
0.11 |
1.02" |
|
02.04.2022 |
CAM401A |
Alewife Brook |
Upstream of the confluence with the Little River and upstream of the Route 2 Bridge |
(7:23 am) |
(7:33 am) |
10 minutes) |
(<0.01) |
(1.33") |
|
01.17.2022 |
CAM401A |
Alewife Brook |
Upstream of the confluence with the Little River and upstream of the Route 2 Bridge |
7:40 am - No activation
(7:49 am)
|
No Spill
(7:59 am)
|
No Spill
(10 minutes)
|
No Spill
(<0.01)
|
0.98" |
|
11.12.2021 |
CAM401A |
Alewife Brook |
Upstream of the confluence with the Little River and upstream of the Route 2 Bridge |
4:05 pm |
4:50 pm |
45 minutes |
0.06 |
1.07" |
|
10.30.2021 |
CAM401B |
Alewife Brook |
Upstream of the Mass Ave Bridge |
7:24 pm |
7:39 pm |
15 minutes |
< 0.001 |
1.63" |
|
10.30.2021 |
CAM005 |
Charles River |
Downstream of the Eliot Bridge, across from Mount Auburn Hospital |
7:20 pm |
7:50 pm |
30 minutes |
0.02 |
1.63" |
|
10.30.2021 |
CAM001 |
Alewife Brook |
Downstream of the Massachusetts Ave Bridge across from Murray Hill Road |
7:17 pm |
7:22 pm |
5 minutes |
< 0.001 |
1.63" |
|
10.30.2021 |
CAM401A |
Alewife Brook |
Upstream of the confluence with the Little River and upstream of the Route 2 Bridge |
7:05 pm |
8:20 pm
|
75 minutes |
0.23 |
1.63" |
|
10.26.2021 |
CAM401B |
Alewife Brook |
Upstream of the Mass Ave Bridge |
7:09 am |
7:39 am |
30 minutes |
0.27 |
1.43" |
|
10.26.2021 |
CAM001 |
Alewife Brook |
Downstream of the Massachusetts Ave Bridge across from Murray Hill Road |
7:02 am |
7:17 am |
15 minutes |
0.01 |
1.43" |
|
10.26.2021 |
CAM017 |
Charles River |
Downstream of the Longfellow Bridge, across from Front Park |
6:05 am |
6:35 am |
30 minutes |
0.54 |
1.43" |
|
10.26.2021 |
CAM401A |
Alewife Brook |
Upstream of the confluence with the Little River and upstream of the Route 2 Bridge |
6:35 am |
8:05 am |
90 minutes |
0.70 |
1.43" |
|
10.05.2021 |
CAM001 |
Alewife Brook |
Downstream of the Massachusetts Ave Bridge across from Murry Hill Road |
2:45 am - No Activation
|
No Spill |
No Spill |
No Spill |
1.64" |
|
10.05.2021 |
CAM401A |
Alewife Brook |
Upstream of the confluence with the Little River and upstream of the Route 2 Bridge |
12:50 am - No Activation
|
No Spill |
No Spill |
No Spill |
1.64" |
|
09.28.2021 |
CAM005 |
Charles River |
Downstream of the Eliot Bridge, across from Mount Auburn Hospital |
11:40 am
(11:45 am)
|
8:00 pm |
495 minutes |
0.28 |
1.60" |
|
09.28.2021 |
CAM401A |
Alewife Brook |
Upstream of the confluence with the Little River and upstream of the Route 2 Bridge |
10:35 am |
8:00 pm |
565 minutes |
1.10 |
1.60" |
|
09.10.2021 |
CAM005 |
Charles River |
Downstream of the Eliot Bridge, across from Mount Auburn Hospital |
1:16 am - No Activation |
No Spill |
No Spill |
No Spill |
0,96" |
|
09.10.2021 |
CAM401A |
Alewife Brook |
Upstream of the confluence of the Little River and upstream of the Route 2 Bridge |
1:04 am |
3:29 am |
145 minutes |
0.10 |
0.96" |
|
09.02.2021 |
CAM007 |
Charles River |
Downstream of the Eliot Bridge, across from Hawthorne Street |
3:05 am |
5:15 am |
130 minutes |
0.47 |
4.25" |
|
09.02.2021 |
CAM001 |
Alewife Brook |
Downstream of Mass Ave Bridge, across from Murry Hill Road |
2:45 am |
5:45 am |
180 minutes |
0.06 |
4.25" |
|
09.02.2021 |
CAM017 |
Charles River |
Downstream of the Longfellow Bridge, across from Front Park |
1:35 am |
5:15 am |
220 minutes |
4.43 |
4.25" |
|
09.02.2021 |
CAM005 |
Charles River |
Downstream of the Eliot Bridge, across from Mount Auburn Hospital |
12:07 am |
6:00 am |
353 minutes |
0.29 |
4.25" |
|
09.02.2021 |
CAM401B |
Alewife Brook |
Upstream of the Mass Ave Bridge |
12:15 am |
7:30 am |
435 minutes |
0.18 |
4.25" |
|
09.01.2021 |
CAM401A |
Alewife Brook |
Upstream of the confluence of the Little River and upstream of the Route 2 Bridge |
7:00 pm |
6:45 am
|
705 minutes |
2.95 |
4.25" |
|
09.01.2021 |
CAM001 |
Alewife Brook |
Downstream of Mass Ave Bridge, across from Murry Hill Road |
11:26 pm - no activation |
see 09.02.2021 |
see 09.02.2021 |
see 09.02.2021" |
4.25" |
|
08.22.2021 |
CAM005 |
Charles River |
Downstream of the Eliot Bridge, across from Mount Auburn Hospital |
9:25 am |
9:40 am |
15 minutes |
0.02 |
0.89" |
|
08.22.2021 |
CAM401B |
Alewife Brook |
Upstream of the Mass Ave Bridge |
9:20 am |
9:45 am |
15 minutes |
0.004 |
0.89" |
|
08.22.2021 |
CAM401A |
Alewife Brook |
Upstream of the confluence of the Little River and upstream of the Route 2 Bridge |
9:05 am |
9:45 am |
40 minutes |
0.29 |
0.89" |
|
08.19.2021 |
CAM007 |
Charles River |
Downstream of Eliot Bridge, across from Hawthorne Street |
12:35 pm |
1:15 pm |
40 minutes |
0.20 |
1.72" |
|
08.19.2021 |
CAM001 |
Alewife Brook |
Downstream of Mass Ave Bridge, across from Murry Hill Road |
12:05 pm |
12:50 pm |
45 minutes |
0.43 |
1.72" |
|
08.19.2021 |
CAM005 |
Charles River |
Downstream of the Eliot Bridge, across from Mount Auburn Hospital |
12:00 pm |
1:15 pm |
75 minutes |
0.10 |
1.72" |
|
08.19.2021 |
CAM401B |
Alewife Brook |
Upstream of the Mass Ave Bridge |
11:45 am |
1:30 pm |
135 minutes |
0.55 |
1.72" |
|
08.19.2021 |
CAM401A |
Alewife Brook |
Upstream of the confluence with the Little River and upstream of the Route 2 Bridge |
11:00 am |
1:30 pm |
150 minutes |
1.13 |
1.72" |
|
08.19.2021 |
CAM017 |
Charles River |
Downstream of the Longfellow Bridge, across from Front Park |
11:00 am |
12:30 pm |
90 minutes |
2.43 |
1.72" |
|
07.27.2021 |
CAM001 |
Alewife Brook |
Downstream of Mass Ave Bridge, across from Murry Hill Road |
No Spill |
No Spill |
No Spill |
No Spill |
0.74" |
|
07.27.2021 |
CAM005 |
Charles River |
Downstream of the Eliot Bridge, across from Mount Auburn Hospital |
7:50 pm |
8:20 pm |
30 minutes |
0.04 |
0.74" |
|
07.27.2021 |
CAM401B |
Alewife Brook |
Upstream of Mass Ave Bridge |
7:51 pm |
8:20 pm |
30 minutes |
0.08 |
0.74" |
|
07.27.2021 |
CAM401A |
Alewife Brook |
Confluence of Little River, upstream of Mass Ave Bridge |
7:45 pm |
8:15 pm |
30 minutes |
0.24 |
0.74" |
|
07.18.2021 |
CAM005 |
Charles River |
Downstream of the Eliot Bridge, across from Mount Auburn Hospital |
5:15 am |
5:30 am |
15 minutes |
0.02 |
0.34" |
|
07.18.2021 |
CAM401A |
Alewife Brook |
Confluence of Little River, upstream of Mass Ave Bridge |
5:11 am |
5:45 am |
34 minutes |
0.75 |
0.34" |
|
07.18.2021 |
CAM007 |
Charles River |
Downstream of the Eliot Bridge, across from Hawthorne Street |
5:00 am |
5:30 am |
30 minutes |
0.24 |
0.34" |
|
07.12.2021 |
CAM005 |
Charles River |
Downstream of Eliot Bridge, across from Mount Auburn Hospital |
8:30 am |
9:00 am |
30 minutes |
0.02 |
1.05" |
|
07.12.2021 |
CAM401A |
Alewife Brook |
Confluence of Little River, upstream of Mass Ave Bridge |
7:45 am |
10:45 am |
3 hours |
1.72 |
1.05" |
|
07.09.2021 |
CAM401A |
Alewife Brook |
Confluence of Little River, upstream of Mass Ave Bridge |
12:45 pm |
2:13 pm |
1.5 hours |
0.44 |
2.53" |
|
07.09.2021 |
CAM007 |
Charles River |
Downstream of Eliot Bridge across from Hawthorne Street |
12:10 pm |
1:20 pm |
1.2 hours |
0.68 |
2.53" |
|
07.09.2021 |
CAM005 |
Charles River |
Downstream of Eliot Bridge across from Mount Auburn Hospital |
11:30 am |
1215 pm |
0,75 hours |
0.18 |
2.53" |
|
07.09.2021 |
CAM017 |
Charles River |
Downstream of Longfellow Bridge, across from Front Park |
10:15 am |
1:30 pm |
3.25 hours |
3.31 |
2.53" |
|
07.09.2021 |
CAM401B |
Alewife Brook |
Upstream of Mass Ave Bridge |
11:30 am |
2:50 pm |
3.33 hours |
0.57 |
2.53" |
|
07.03.2021 |
CAM401A |
Alewife Brook |
Confluence of Little River, upstream of Mass Ave Bridge |
9:37 pm |
9:42 pm |
5 minutes |
0.07 |
1.39" |
|
07.03.2021 |
CAM001 |
Alewife Brook |
Downstream of Mass Ave Bridge, across from Murry Hill Road |
Data Unavailable |
Data Unavailable |
Data Unavailable |
Data Unavailable |
1.39" |
|
07.02.2021 |
CAM401B |
Alewife Brook
|
Upstream of Mass Ave Bridge |
2:00 am |
3:30 am |
1.5 hours |
0.473 |
2..23" |
|
07.02.2021 |
CAM007 |
Charles River |
Downstream of Eliot Bridge |
2:08 am |
3:20 am |
1.2 hours |
0.038 |
2.23" |
|
07.02.2021 |
CAM401A |
Alewife Brook |
Confluence of Little River, Upstream of Mass Ave Bridge |
1:29 am |
3:30 am
|
2.0 hours |
0.81 |
2.23" |
|
07.02.2021 |
CAM001 |
Alewife Brook |
Downstream of Mass Ave Bridge, across from Murry Hill Road |
Data Unavailable |
Data Unavailable |
Data Unavailable |
Data Unavailable |
2.23" |
|
07.02.2021 |
CAM005 |
Charles River |
Downstream of Elliot Bridge, across from Mount Auburn Hospital |
2:15 am |
3:52 am |
1.62 hours |
2.27 |
2.23" |
|
07.02.2021 |
CAM017 |
Charles River |
Downstream of Longfellow Bridge, across from Front Park |
12:30 am |
2:30 am |
2.0 hours |
2.91 |
2.23" |
|