Water quality update title page
Comparison of 2011 water quality conditions to normal conditions *
| Key: |
H = very high |
| |
h = high |
| |
. = normal |
| |
L = low |
| |
l = very low |
| |
| Reach | Season | Stratum | TEMP | DO | COND | pH | TURB | SS | VSS | CHL | TN | NOX | NHX | TP | SRP |
| Pool 4 |
Winter |
POOL |
l |
. |
. |
. |
. |
. |
. |
l |
H |
h |
. |
. |
. |
|   | MC |
. |
. |
. |
. |
. |
. |
. |
. |
h |
. |
. |
. |
. |
|   | SC |
. |
. |
. |
. |
. |
. |
. |
. |
H |
. |
. |
. |
. |
|   | BWC |
. |
. |
. |
. |
. |
. |
. |
. |
h |
h |
. |
. |
. |
|   | LP |
. |
. |
. |
. |
. |
. |
. |
. |
H |
h |
. |
. |
. |
| Spring |
POOL |
L |
. |
. |
. |
l |
. |
. |
. |
. |
. |
. |
. |
. |
|   | MC |
L |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | SC |
L |
. |
. |
. |
l |
. |
. |
. |
. |
. |
. |
. |
. |
|   | BWC |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | LP |
l |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
| Summer |
POOL |
. |
. |
H |
. |
L |
l |
. |
. |
. |
. |
. |
. |
. |
|   | MC |
. |
l |
h |
. |
l |
l |
l |
. |
. |
. |
. |
. |
. |
|   | SC |
. |
l |
h |
. |
l |
l |
. |
. |
. |
. |
. |
. |
. |
|   | BWC |
. |
. |
. |
. |
. |
. |
. |
l |
. |
. |
. |
. |
. |
|   | LP |
. |
. |
. |
. |
l |
. |
. |
. |
. |
. |
. |
. |
. |
| Fall |
POOL |
H |
. |
H |
. |
l |
. |
. |
. |
. |
. |
. |
. |
. |
|   | MC |
. |
. |
h |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | SC |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | BWC |
h |
. |
. |
. |
l |
. |
. |
. |
. |
. |
. |
. |
. |
|   | LP |
H |
. |
H |
h |
l |
. |
. |
. |
. |
. |
. |
. |
. |
|   | TEMP | DO | COND | pH | TURB | SS | VSS | CHL | TN | NOX | NHX | TP | SRP |
| Pool 8 |
Winter |
POOL |
l |
. |
. |
. |
. |
. |
. |
l |
H |
H |
. |
. |
. |
|   | MC |
L |
. |
. |
. |
. |
. |
. |
. |
H |
H |
. |
. |
. |
|   | SC |
l |
. |
. |
. |
. |
. |
. |
. |
H |
H |
. |
. |
. |
|   | BWC |
. |
. |
. |
. |
. |
. |
. |
. |
h |
h |
. |
. |
. |
|   | IMP |
. |
. |
. |
. |
. |
. |
. |
. |
H |
h |
. |
. |
. |
| Spring |
POOL |
L |
. |
. |
. |
. |
. |
. |
. |
. |
. |
l |
. |
. |
|   | MC |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | SC |
L |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | BWC |
l |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | IMP |
L |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
| Summer |
POOL |
. |
. |
h |
l |
. |
. |
L |
L |
. |
. |
. |
. |
. |
|   | MC |
. |
. |
H |
l |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | SC |
. |
. |
h |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | BWC |
. |
. |
h |
. |
. |
. |
L |
l |
. |
. |
. |
. |
. |
|   | IMP |
. |
. |
h |
l |
. |
. |
. |
. |
. |
. |
. |
. |
. |
| Fall |
POOL |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | MC |
. |
. |
H |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | SC |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | BWC |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | IMP |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | TEMP | DO | COND | pH | TURB | SS | VSS | CHL | TN | NOX | NHX | TP | SRP |
| Pool 13 |
Winter |
POOL |
. |
. |
. |
. |
. |
. |
. |
l |
h |
h |
. |
. |
. |
|   | MC |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | SC |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | BWC |
l |
. |
. |
. |
. |
. |
. |
l |
. |
h |
. |
. |
. |
|   | IMP |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
| Spring |
POOL |
. |
. |
. |
. |
L |
. |
. |
. |
. |
. |
L |
. |
. |
|   | MC |
. |
. |
. |
. |
L |
. |
. |
. |
. |
. |
l |
. |
. |
|   | SC |
. |
. |
. |
. |
L |
. |
. |
. |
. |
. |
l |
. |
. |
|   | BWC |
. |
. |
. |
. |
l |
. |
. |
. |
. |
. |
. |
. |
. |
|   | IMP |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
l |
. |
. |
| Summer |
POOL |
. |
. |
. |
l |
. |
. |
. |
l |
. |
. |
. |
. |
. |
|   | MC |
. |
. |
h |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | SC |
. |
. |
h |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | BWC |
. |
. |
. |
. |
. |
. |
. |
l |
. |
. |
. |
. |
. |
|   | IMP |
. |
. |
. |
. |
. |
. |
. |
l |
. |
. |
. |
. |
. |
| Fall |
POOL |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | MC |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | SC |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | BWC |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | IMP |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | TEMP | DO | COND | pH | TURB | SS | VSS | CHL | TN | NOX | NHX | TP | SRP |
| Pool 26 |
Winter |
POOL |
l |
. |
. |
. |
l |
l |
. |
l |
. |
. |
. |
. |
. |
|   | MC |
. |
. |
. |
. |
l |
l |
. |
. |
. |
. |
. |
. |
. |
|   | SC |
. |
. |
. |
. |
. |
. |
. |
L |
. |
. |
. |
. |
. |
|   | BWC |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | SL |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | IMP |
. |
. |
. |
. |
. |
l |
. |
. |
. |
. |
. |
. |
. |
| Spring |
POOL |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | MC |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | SC |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | BWC |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | SL |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | IMP |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
| Summer |
POOL |
. |
. |
H |
L |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | MC |
. |
. |
. |
L |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | SC |
. |
. |
H |
L |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | BWC |
H |
. |
. |
L |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | SL |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | IMP |
h |
. |
. |
l |
. |
. |
. |
. |
. |
. |
. |
. |
. |
| Fall |
POOL |
. |
. |
. |
. |
. |
. |
. |
. |
l |
l |
. |
l |
. |
|   | MC |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | SC |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | BWC |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | SL |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | IMP |
. |
. |
. |
. |
. |
. |
. |
h |
. |
. |
. |
. |
. |
|   | TEMP | DO | COND | pH | TURB | SS | VSS | CHL | TN | NOX | NHX | TP | SRP |
| Open River |
Winter |
POOL |
. |
. |
. |
. |
L |
L |
L |
. |
. |
. |
. |
. |
. |
|   | MC |
. |
. |
. |
. |
L |
L |
L |
. |
. |
. |
. |
. |
. |
|   | SC |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
| Spring |
POOL |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | MC |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | SC |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
| Summer |
POOL |
H |
L |
H |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | MC |
H |
L |
H |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | SC |
H |
L |
H |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
| Fall |
POOL |
. |
. |
h |
. |
. |
. |
. |
. |
. |
l |
. |
. |
. |
|   | MC |
. |
. |
h |
. |
. |
. |
. |
. |
. |
l |
. |
. |
. |
|   | SC |
. |
. |
. |
H |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | TEMP | DO | COND | pH | TURB | SS | VSS | CHL | TN | NOX | NHX | TP | SRP |
| La Grange |
Winter |
POOL |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | MC |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | SC |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | BWC |
. |
. |
. |
. |
. |
. |
. |
. |
l |
. |
. |
. |
. |
| Spring |
POOL |
. |
. |
. |
. |
. |
. |
. |
L |
. |
. |
. |
. |
. |
|   | MC |
. |
. |
. |
. |
. |
. |
. |
L |
. |
. |
. |
. |
. |
|   | SC |
. |
. |
. |
. |
. |
. |
. |
L |
. |
. |
. |
. |
. |
|   | BWC |
. |
. |
. |
. |
. |
. |
. |
l |
. |
. |
. |
. |
. |
| Summer |
POOL |
H |
l |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | MC |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | SC |
H |
l |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | BWC |
h |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
| Fall |
POOL |
. |
. |
h |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | MC |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | SC |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
|   | BWC |
. |
. |
h |
. |
. |
. |
. |
. |
. |
. |
. |
. |
. |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
*Data acquired over a 15-yr period (1994-2009; data missing in 2003) was used to determine annual 95% upper confidence limits (UCL) and 95% lower confidence limits (LCL) of the mean for each variable/reach/episode/stratum. Estimates of the 95% upper and lower confidence limit for the year of interest (e.g., 2010; a year outside the 15-yr period), along with the median, were compared to the 15-yr annual extremes to determine unusual conditions. Estimates where the median was higher than the highest annual 15-yr UCL or lower than the lowest annual 15-yr LCL were "low" or "high," respectively. Estimates where the LCL was higher than the highest annual 15-yr UCL or the UCL was lower than the lowest annual 15-yr LCL were "very low" or "very high", respectively.
|