ONEKAMA JUNIOR/SENIOR HIGH SCHOOL SCIENCE
Portage Lake Water Analysis Tests
October 18,1994
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SECCHI DISK: West Basin 25' East Basin 16' Shallow Site 10' (bottom)
CHLOROPHYLL a: West Basin 3.32 East Basin 4.69 Shallow Site 9.8(ug/l)*
PHOSPHORUS: West Basin ...........East Basin .........Shallow Site
(ug/l) Surface............. 4.7..................... 4.65.................... 9.8
.........30 ft. ................5.7 .....................6.7 ............(10 ft.)9.5
.........55 ft. ................12.2 ...................5.3 ......................--
.........Dissolved Oxygen .....Temperature.......Alkalinity
...................West Basin....................East Basin..............Shallow Site
|
D.O. |
TEMP |
PH |
D.O. |
TEMP |
PH |
DO |
TEMP |
PH |
|||
|
Surface |
10.0 |
14 |
8.0 |
9.2 |
15 |
7.9 |
90 |
16 |
8.0 |
||
|
15 ft. |
9.2 |
13 |
7.9 |
9.0 |
15 |
7.4 |
94 |
14 |
7.5 |
||
|
20 ft. |
8.4 |
14 |
8.4 |
9.2 |
14 |
7.5 |
-- |
-- |
-- |
||
|
25 ft. |
9.2 |
15 |
8.1 |
9.0 |
14 |
7.4 |
-- |
-- |
-- |
||
|
30 ft. |
8.8 |
14 |
8.0 |
9.0 |
14 |
7.9 |
-- |
-- |
-- |
||
|
35 ft. |
9.2 |
15 |
8.0 |
8.3 |
14 |
7.8 |
-- |
-- |
-- |
||
|
40 ft. |
9.0 |
14 |
7.9 |
9.0 |
14 |
7.4 |
-- |
-- |
-- |
||
|
45 ft. |
9.6 |
14 |
8.0 |
9.3 |
14 |
8.1 |
-- |
-- |
-- |
||
|
50 ft. |
9.3 |
13 |
7.9 |
8.7 |
14 |
8.0 |
-- |
-- |
-- |
||
|
55 ft. |
5.6 |
15 |
7.9 |
8.6 |
15 |
8.1 |
-- |
-- |
-- |
||
* parts per billion
-- not taken