Table 7. Summary statistics of bacteria densities
in combined runoff samples,
2000–2001
[Densities in colonies per
100 milliliters; TSWQS, Texas State Water Quality Standard; <, less than;
--, not measured]
|
Bacteria |
No. of |
Mean |
Median |
Minimum |
Maximum |
TSWQS |
|
Fecal coliform |
9 |
17,800 |
6,000 |
2,000 |
76,000 |
1400 |
|
Fecal streptococcus |
8 |
9,750 |
9,450 |
<1,000 |
26,000 |
-- |
|
E. coli |
5 |
-- |
2,560 |
<1,000 |
4,380 |
2394 |
1 Indicator bacteria for saltwater is enterococcus.
Fecal coliform is an alternative indicator.
2 Indicator bacteria for freshwater is E. coli. Fecal coliform is an alternative indicator.
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