ONEKAMA JUNIOR/SENIOR HIGH SCHOOL
Portage Lake Water Analysis Tests
October 20, 1995
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SECCHI DISK: West Basin 17' East Basin 17' Shallow Site 10'
CHLOROPHYLL a: West Basin East Basin Shallow Site
(ug/l)* 1.33 2.08 2.84
PHOSPHORUS: West Basin......... East Basin......... Shallow Site
(ug/l) Surface .............11.3................... 7.9....................14.6
.........30 ft. .................7.5 ....................12.5.........(10ft.) 8.0
.........55 ft. .................7.9 ....................10.7................... --
...........Dissolved Oxygen .....Temperature.......Alkalinity
...................West Basin....................East Basin..............Shallow Site
|
D.O. |
TEMP |
PH |
D.O. |
TEMP |
PH |
DO |
TEMP |
PH |
|||
|
Surface |
8.4 |
10 |
8.1 |
10.0 |
11 |
8.1 |
9.4 |
11 |
8.1 |
||
|
15 ft. |
8.4 |
10 |
8.1 |
8.4 |
10 |
8.1 |
9.4 |
11 |
8.1 |
||
|
20 ft. |
7.6 |
11 |
8.1 |
7.6 |
11 |
8.0 |
-- |
-- |
-- |
||
|
25 ft. |
10.0 |
11 |
8.0 |
10.0 |
11 |
8.2 |
-- |
-- |
-- |
||
|
30 ft. |
9.2 |
11 |
8.0 |
9.2 |
11 |
8.2 |
-- |
-- |
-- |
||
|
35 ft. |
9.2 |
10 |
8.0 |
9.2 |
10 |
8.0 |
-- |
-- |
-- |
||
|
40 ft. |
9.4 |
10 |
8.1 |
9.4 |
10 |
8.0 |
-- |
-- |
-- |
||
|
45 ft. |
7.6 |
11 |
8.0 |
7.6 |
11 |
8.1 |
-- |
-- |
-- |
||
|
50 ft. |
9.6** |
10 |
8.0 |
9.6** |
10 |
8.1 |
-- |
-- |
-- |
||
|
55 ft. |
10.0 |
11 |
8.0 |
10.0 |
11 |
7.9 |
-- |
-- |
-- |
||
* parts per billion
** cap of sample bottle broke
-- not taken