Water and Sediment Quality Data Portal
Selected State Water Quality Criteria
From: [TCEQ] Texas Commission on Environmental Quality. 2004. Guidance for Assessing Texas Surface and Finished Drinking Water Quality Data. Surface Water Quality Monitoring Program, TCEQ. Austin, TX. pp86.
|
Bacterial Pathogens
|
Screening level (Single Sample)
|
| Fecal coliform |
400 Colonies / 100 ML |
| E. coli (in freshwater only) |
389 MPN / 100 ML |
| Enterococci (in saltwater only) |
89 MPN / 100 ML |
|
Nutrients
|
Tidal Stream
Screening Level
|
Estuarine
Screening Level
|
|
Ammonia
|
0.58 mg/L
|
0.10 mg/L
|
|
Chlorophyll-a
|
19.2 ug/L
|
11.5 ug/L
|
|
Nitrate-nitrite
|
1.83 mg/L
|
0.26 mg/L
|
|
Total phosphorus
|
0.71 mg/L
|
0.22 mg/L
|
|
Dissolved Oxygen
|
2.0 mg/L
|
2.0 mg/L
|
|
Metals (mg/kg)
|
Marine PEL
|
|
Cadmium
|
4.21
|
|
Mercury
|
0.696
|
|
Silver
|
1.77
|
|
Lead
|
112.18
|
|
Zinc
|
271.0
|
|
Organic Pesticides ( ug/kg)
|
Marine PEL
|
|
Chlordane
|
4.79
|
|
DDT
|
51.7
|
|
Dieldrin
|
4.3
|
|
Lindane
|
0.99
|
|
Industrial Organics ( ug/kg)
|
Marine PEL
|
|
Acenaphthene
|
88.9
|
|
Acenaphthylene
|
127.87
|
|
Anthracene
|
245.0
|
|
Benzo(a)anthracene
|
692.53
|
|
Benzo(a)pyrene
|
763.22
|
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Chrysene
|
845.98
|
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1,2,4,6 Dibenzanthracene
|
134.61
|
|
Fluoranthene
|
1493.54
|
|
Fluorene
|
144.35
|
|
Naphthalene
|
390.64
|
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PCBs
|
188.79
|
|
Phenanthrene
|
543.53
|
|
Pyrene
|
1397.6
|
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