Monitoring E Coli
As
defined
under the
Public Bathing Law (Chapter 18.28) of PA Code, the water in bathing
beaches will be considered contaminated for bathing purposes when one
of the following conditions exists:
- The
Department
determines that a substance is being discharged or may
be discharged into the water and is or may be hazardous to the health
of persons
using the bathing beach.
- The
E.
coli density of a water sample taken from the bathing beach
exceeds 235 per 100 milliliters.
- The
E.
coli density in all water samples taken from the bathing beach,
in any 30-day period during the bathing beach’s operating season,
exceeds a
geometric mean of 126 per 100 milliliters.
E
Coli
samplings are recorded below:
|
Concentration (geometric mean /
100 mililiters)
|
|
Sample Date |
1st
Sample |
2nd
Sample |
3rd
Sample |
Pass
/
Fail |
7/18/11
|
30
(SB)
|
20
(GB)
|
none
taken
|
PASS |
7/11/11
|
0
(SB)
|
0
(GB)
|
none
taken
|
PASS |
7/6/11
|
10
(SB)
|
0
(GB)
|
none
taken
|
PASS |
6/29/11
|
20
(SB)
|
<
10
(GB)
|
none
taken
|
PASS |
6/27/11
|
1060
(SB)
|
570
(GB)
|
none
taken
|
FAIL |
6/17/11
|
110
(SB)
|
50
(GB) |
none
taken
|
PASS |
6/10/11
|
80
(SB)
|
50
(GB)
|
none
taken
|
PASS |
6/6/11
|
90
(SB)
|
70
(GB)
|
none
taken
|
PASS |
5/27/11
|
30
(SB)
|
none
taken
|
none
taken |
PASS |
9/2/10 |
<10 (SB) |
10 (GB) |
40 (NS) |
PASS |
8/10/10 |
<10 (SB) |
<10 (EE) |
<10 (WE) |
PASS |
7/23/10 |
20 (SB) |
<10 (EE) |
40 (WE) |
PASS |
Total
E
Coli concentration must not exceed 235 / 100 mililiters.
Key:
-
SB
=
sand beach
-
GB
=
grass beach
-
EE
=
East End, the area of lake nearest to the Community Building
-
WE
=
West End, the area of lake nearest to Hollenback Road
-
NS
=
North Side, directly across from the sand beach
|