Table 2. Nutrient concentrations, Comal Springs riverine system, New Braunfels, Texas, 1993-94
[mg/L, milligrams per liter; NA, not available; <, less than; ft3/s, cubic feet per second]
|
Constituent |
New Channel |
|
Comal River1 |
|||||
|
Site A |
|
Site B |
Site E |
|||||
|
Summer |
Winter |
Summer (9/20/93) |
Winter (2/3/94) |
Summer (9/20/93) |
Winter (2/3/94) |
|||
|
Nitrogen, nitrate, dissolved |
NA |
1.87 |
NA |
1.87 |
NA |
2.38 |
||
|
Nitrogen, nitrite, dissolved |
<.010 |
.03 |
<.010 |
.03 |
<.010 |
.02 |
||
|
Nitrogen, ammonia, dissolved |
.03 |
.02 |
.03 |
.03 |
.03 |
.05 |
||
|
Nitrogen, organic, dissolved |
NA |
NA |
NA |
NA |
NA |
NA |
||
|
Phosphorus, dissolved |
<.010 |
<.010 |
<.010 |
<.010 |
<.010 |
<.010 |
||
|
Phosphorus, ortho, dissolved |
NA |
NA |
NA |
NA |
.03 |
NA |
||
|
Phosphate, ortho, dissolved (as P) |
<.010 |
<.010 |
<.010 |
<.010 |
.01 |
<.010 |
||
|
Constituent |
Old Channel |
|
Comal River1 |
|||||
|
Site C |
|
Site D |
Site E |
|||||
|
Summer |
Winter |
Summer (8/20/93) |
Winter (3/3/94) |
Summer (8/20/93) |
Winter (3/3/94) |
|||
|
Nitrogen, nitrate, dissolved |
552 |
NA |
1.39 |
NA |
NA |
NA |
||
|
Nitrogen, nitrite, dissolved |
7.7 |
<.010 |
.01 |
<.010 |
<.010 |
<.010 |
||
|
Nitrogen, ammonia, dissolved |
.03 |
.02 |
.06 |
.03 |
.03 |
.01 |
||
|
Nitrogen, organic, dissolved |
NA |
NA |
NA |
.27 |
NA |
NA |
||
|
Phosphorus, dissolved |
NA |
.01 |
<.010 |
.05 |
<.010 |
.01 |
||
|
Phosphorus, ortho, dissolved |
<.010 |
NA |
.06 |
NA |
.03 |
NA |
||
|
Phosphate, ortho, dissolved (as P) |
.01 |
<.010 |
.02 |
<.010 |
.01 |
<.010 |
||
1 Daily mean flow, 08169000 Comal River at New Braunfels: 350 ft3/s - 8/20/93, 339 ft3/s - 9/20/93, 351 ft3/s - 2/3/94, 337 ft3/s - 3/3/94.
Back to: