St. Joseph Water System (LA) Water Quality

St. Joseph Water System is a small public water system in EPA region 6 that provides tap water for the zip codes. It has 5 facilities where the water supply was tested for 23 chemical contaminants that impact tap water quality and human health.

The maximum reported level of Manganese was 370 µg/L. Some (2 of 4 or 50%) of the latest water samples showed levels of Manganese that were at or above unsafe concentration levels. There were 1 contamintants found in the St. Joseph Water System water supply at levels that were above the minimum reporting level. 1 of the contaminants were above the reference level, which means they may pose a risk to human health.

Contaminants

1,1-dichloroethane (2)

Tap @ GST
Main Plant ℹ️
0%
<0.03 µg/L
Below Reporting Level
12/16/2015
9 years ago
Tap @ GST
Main Plant ℹ️
0%
<0.03 µg/L
Below Reporting Level
6/22/2015
10 years ago
Minimum Reporting Level: 0.03 µg/L
Reference Level: ?
Contaminant Details

1,2,3-trichloropropane (2)

Tap @ GST
Main Plant ℹ️
0%
<0.03 µg/L
Below Reporting Level
12/16/2015
9 years ago
Tap @ GST
Main Plant ℹ️
0%
<0.03 µg/L
Below Reporting Level
6/22/2015
10 years ago
Minimum Reporting Level: 0.03 µg/L
Reference Level: ?
Contaminant Details

1,3-butadiene (2)

Tap @ GST
Main Plant ℹ️
0%
<0.1 µg/L
Below Reporting Level
12/16/2015
9 years ago
Tap @ GST
Main Plant ℹ️
0%
<0.1 µg/L
Below Reporting Level
6/22/2015
10 years ago
Minimum Reporting Level: 0.1 µg/L
Reference Level: ?
Contaminant Details

1,4-dioxane (2)

Tap @ GST
Main Plant ℹ️
0%
<0.07 µg/L
Below Reporting Level
12/16/2015
9 years ago
Tap @ GST
Main Plant ℹ️
0%
<0.07 µg/L
Below Reporting Level
6/22/2015
10 years ago
Minimum Reporting Level: 0.07 µg/L
Reference Level: ?
Contaminant Details

bromochloromethane (Halon 1011) (2)

Tap @ GST
Main Plant ℹ️
0%
<0.06 µg/L
Below Reporting Level
12/16/2015
9 years ago
Tap @ GST
Main Plant ℹ️
0%
<0.06 µg/L
Below Reporting Level
6/22/2015
10 years ago
Minimum Reporting Level: 0.06 µg/L
Reference Level: ?
Contaminant Details

bromomethane (2)

Tap @ GST
Main Plant ℹ️
0%
<0.2 µg/L
Below Reporting Level
12/16/2015
9 years ago
Tap @ GST
Main Plant ℹ️
0%
<0.2 µg/L
Below Reporting Level
6/22/2015
10 years ago
Minimum Reporting Level: 0.2 µg/L
Reference Level: ?
Contaminant Details

chlorate (4)

Tap @ GST
Main Plant ℹ️
0%
<20 µg/L
Below Reporting Level
12/16/2015
9 years ago
Max. Res. Time in Dist. System
Distribution System ℹ️
0%
<20 µg/L
Below Reporting Level
12/16/2015
9 years ago
Tap @ GST
Main Plant ℹ️
0%
<20 µg/L
Below Reporting Level
6/22/2015
10 years ago
Max. Res. Time in Dist. System
Distribution System ℹ️
0%
<20 µg/L
Below Reporting Level
6/22/2015
10 years ago
Minimum Reporting Level: 20 µg/L
Reference Level: ?
Contaminant Details

chlorodifluoromethane (HCFC-22) (2)

Tap @ GST
Main Plant ℹ️
0%
<0.08 µg/L
Below Reporting Level
12/16/2015
9 years ago
Tap @ GST
Main Plant ℹ️
0%
<0.08 µg/L
Below Reporting Level
6/22/2015
10 years ago
Minimum Reporting Level: 0.08 µg/L
Reference Level: ?
Contaminant Details

chloromethane (2)

Tap @ GST
Main Plant ℹ️
0%
<0.2 µg/L
Below Reporting Level
12/16/2015
9 years ago
Tap @ GST
Main Plant ℹ️
0%
<0.2 µg/L
Below Reporting Level
6/22/2015
10 years ago
Minimum Reporting Level: 0.2 µg/L
Reference Level: ?
Contaminant Details

chromium (4)

Tap @ GST
Main Plant ℹ️
0%
<0.2 µg/L
Below Reporting Level
12/16/2015
9 years ago
Max. Res. Time in Dist. System
Distribution System ℹ️
0%
<0.2 µg/L
Below Reporting Level
12/16/2015
9 years ago
Tap @ GST
Main Plant ℹ️
0%
<0.2 µg/L
Below Reporting Level
6/22/2015
10 years ago
Max. Res. Time in Dist. System
Distribution System ℹ️
0%
<0.2 µg/L
Below Reporting Level
6/22/2015
10 years ago
Minimum Reporting Level: 0.2 µg/L
Reference Level: ?
Contaminant Details

chromium-6 (4)

Max. Res. Time in Dist. System
Distribution System ℹ️
223.7%
0.0671 µg/L
⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.0371 µg/L
12/16/2015
9 years ago
Tap @ GST
Main Plant ℹ️
0%
<0.03 µg/L
Below Reporting Level
12/16/2015
9 years ago
Max. Res. Time in Dist. System
Distribution System ℹ️
174.7%
0.0524 µg/L
⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.0224 µg/L
6/22/2015
10 years ago
Tap @ GST
Main Plant ℹ️
0%
<0.03 µg/L
Below Reporting Level
6/22/2015
10 years ago
Minimum Reporting Level: 0.03 µg/L
Reference Level: ?
Contaminant Details

cobalt (4)

Tap @ GST
Main Plant ℹ️
568%
5.68 µg/L
⚠️ Exceeds Reporting Level of 1 µg/L by 4.68 µg/L
12/16/2015
9 years ago
Max. Res. Time in Dist. System
Distribution System ℹ️
0%
<1 µg/L
Below Reporting Level
12/16/2015
9 years ago
Tap @ GST
Main Plant ℹ️
0%
<1 µg/L
Below Reporting Level
6/22/2015
10 years ago
Max. Res. Time in Dist. System
Distribution System ℹ️
0%
<1 µg/L
Below Reporting Level
6/22/2015
10 years ago
Minimum Reporting Level: 1 µg/L
Reference Level: ?
Contaminant Details

Germanium (4)

Tap @ GST
Main Plant ℹ️
0%
<1 µg/L
Below Reporting Level
12/16/2015
9 years ago
Max. Res. Time in Dist. System
Distribution System ℹ️
0%
<1 µg/L
Below Reporting Level
12/16/2015
9 years ago
Tap @ GST
Main Plant ℹ️
0%
<1 µg/L
Below Reporting Level
6/22/2015
10 years ago
Max. Res. Time in Dist. System
Distribution System ℹ️
0%
<1 µg/L
Below Reporting Level
6/22/2015
10 years ago
Minimum Reporting Level: 1 µg/L
Reference Level: ?
Contaminant Details

Manganese (4)

Tap @ GST
Main Plant ℹ️
118%
354 µg/L
☠️ Exceeds Reference Level by 54 µg/L
12/16/2015
9 years ago
Max. Res. Time in Dist. System
Distribution System ℹ️
18.2%
54.5 µg/L
Meets Reporting Threshold
12/16/2015
9 years ago
Tap @ GST
Main Plant ℹ️
123.3%
370 µg/L
☠️ Exceeds Reference Level by 70 µg/L
6/22/2015
10 years ago
Max. Res. Time in Dist. System
Distribution System ℹ️
12.5%
37.4 µg/L
Meets Reporting Threshold
6/22/2015
10 years ago
Minimum Reporting Level: 1 µg/L
Reference Level: 300 µg/L
Contaminant Details

molybdenum (4)

Max. Res. Time in Dist. System
Distribution System ℹ️
134%
1.34 µg/L
⚠️ Exceeds Reporting Level of 1 µg/L by 0.34 µg/L
12/16/2015
9 years ago
Tap @ GST
Main Plant ℹ️
118%
1.18 µg/L
⚠️ Exceeds Reporting Level of 1 µg/L by 0.18 µg/L
12/16/2015
9 years ago
Tap @ GST
Main Plant ℹ️
138%
1.38 µg/L
⚠️ Exceeds Reporting Level of 1 µg/L by 0.38 µg/L
6/22/2015
10 years ago
Max. Res. Time in Dist. System
Distribution System ℹ️
124%
1.24 µg/L
⚠️ Exceeds Reporting Level of 1 µg/L by 0.24 µg/L
6/22/2015
10 years ago
Minimum Reporting Level: 1 µg/L
Reference Level: ?
Contaminant Details

perfluorobutanesulfonic acid (2)

Tap @ GST
Main Plant ℹ️
0%
<0.09 µg/L
Below Reporting Level
12/16/2015
9 years ago
Tap @ GST
Main Plant ℹ️
0%
<0.09 µg/L
Below Reporting Level
6/22/2015
10 years ago
Minimum Reporting Level: 0.09 µg/L
Reference Level: ?
Contaminant Details

perfluoroheptanoic acid (2)

Tap @ GST
Main Plant ℹ️
0%
<0.01 µg/L
Below Reporting Level
12/16/2015
9 years ago
Tap @ GST
Main Plant ℹ️
0%
<0.01 µg/L
Below Reporting Level
6/22/2015
10 years ago
Minimum Reporting Level: 0.01 µg/L
Reference Level: ?
Contaminant Details

perfluorohexanesulfonic acid (2)

Tap @ GST
Main Plant ℹ️
0%
<0.03 µg/L
Below Reporting Level
12/16/2015
9 years ago
Tap @ GST
Main Plant ℹ️
0%
<0.03 µg/L
Below Reporting Level
6/22/2015
10 years ago
Minimum Reporting Level: 0.03 µg/L
Reference Level: ?
Contaminant Details

perfluorononanoic acid (2)

Tap @ GST
Main Plant ℹ️
0%
<0.02 µg/L
Below Reporting Level
12/16/2015
9 years ago
Tap @ GST
Main Plant ℹ️
0%
<0.02 µg/L
Below Reporting Level
6/22/2015
10 years ago
Minimum Reporting Level: 0.02 µg/L
Reference Level: ?
Contaminant Details

perfluorooctanesulfonic acid (2)

Tap @ GST
Main Plant ℹ️
0%
<0.04 µg/L
Below Reporting Level
12/16/2015
9 years ago
Tap @ GST
Main Plant ℹ️
0%
<0.04 µg/L
Below Reporting Level
6/22/2015
10 years ago
Minimum Reporting Level: 0.04 µg/L
Reference Level: ?
Contaminant Details

perfluorooctanoic acid (2)

Tap @ GST
Main Plant ℹ️
0%
<0.02 µg/L
Below Reporting Level
12/16/2015
9 years ago
Tap @ GST
Main Plant ℹ️
0%
<0.02 µg/L
Below Reporting Level
6/22/2015
10 years ago
Minimum Reporting Level: 0.02 µg/L
Reference Level: ?
Contaminant Details

strontium (4)

Tap @ GST
Main Plant ℹ️
198666.7%
596 µg/L
⚠️ Exceeds Reporting Level of 0.3 µg/L by 595.7 µg/L
12/16/2015
9 years ago
Max. Res. Time in Dist. System
Distribution System ℹ️
184000%
552 µg/L
⚠️ Exceeds Reporting Level of 0.3 µg/L by 551.7 µg/L
12/16/2015
9 years ago
Tap @ GST
Main Plant ℹ️
196000%
588 µg/L
⚠️ Exceeds Reporting Level of 0.3 µg/L by 587.7 µg/L
6/22/2015
10 years ago
Max. Res. Time in Dist. System
Distribution System ℹ️
168000%
504 µg/L
⚠️ Exceeds Reporting Level of 0.3 µg/L by 503.7 µg/L
6/22/2015
10 years ago
Minimum Reporting Level: 0.3 µg/L
Reference Level: ?
Contaminant Details

vanadium (4)

Tap @ GST
Main Plant ℹ️
0%
<0.2 µg/L
Below Reporting Level
12/16/2015
9 years ago
Max. Res. Time in Dist. System
Distribution System ℹ️
0%
<0.2 µg/L
Below Reporting Level
12/16/2015
9 years ago
Tap @ GST
Main Plant ℹ️
0%
<0.2 µg/L
Below Reporting Level
6/22/2015
10 years ago
Max. Res. Time in Dist. System
Distribution System ℹ️
0%
<0.2 µg/L
Below Reporting Level
6/22/2015
10 years ago
Minimum Reporting Level: 0.2 µg/L
Reference Level: ?
Contaminant Details

Sampling Facilities

Main Plant
Ground Water (GW)

Tap @ GSTEntry Point to the Distribution System (EP)

Distribution System
Ground Water (GW)

Max. Res. Time in Dist. SystemMaximum Residence Time (MR)

Well #2 (North Well)
Ground Water (GW)

Well #2 (North Well)Entry Point to the Distribution System (EP)

Well #3 (New Well)
Ground Water (GW)

Well #3 - New WellEntry Point to the Distribution System (EP)

Distribution System
Ground Water (GW)

DBP MaxMaximum Residence Time (MR)

FAQ

Is St. Joseph Water System tap water safe to drink?

When was St. Joseph Water System last tested for water contamination?

The latest water samples were taken on December 16th, 2015.