Thibodaux Waterworks (LA) Water Quality

Thibodaux Waterworks is a large public water system in EPA region 6 that provides tap water for the 70301 zip codes. It has 5 facilities where the water supply was tested for 78 chemical contaminants that impact tap water quality and human health.

The maximum reported level of HAA5 (five regulated haloacetic acids) was 51.18 µg/L. The maximum reported level of Manganese was 4.2 µg/L. The maximum reported level of quinoline was 0.032 µg/L. Some (1 of 4 or 25%) of the latest water samples showed levels of quinoline that were at or above unsafe concentration levels. There were 3 contamintants found in the Thibodaux Waterworks 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 (4)

1,2,3-trichloropropane (4)

1,3-butadiene (4)

1,4-dioxane (4)

1-butanol (4)

11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (4)

1H,1H,2H,2H-perfluorodecane sulfonic acid (4)

1H,1H,2H,2H-perfluorohexane sulfonic acid (4)

1H,1H,2H,2H-perfluorooctane sulfonic acid (4)

2,4-dinitrotoluene (1)

2,6-dinitrotoluene (1)

2-methoxyethanol (4)

2-propen-1-ol (Allyl Alcohol) (4)

4,4'-dichloro dichlorophenyl ethylene (DDE) (2)

4,8-dioxa-3H-perfluorononanoic acid (4)

9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (4)

alpha-hexachlorocyclohexane (3)

anatoxin-a (8)

bromochloromethane (Halon 1011) (4)

bromomethane (4)

Butylated Hydroxyanisole (4)

chlorate (8)

chlorodifluoromethane (HCFC-22) (4)

chloromethane (4)

chlorpyrifos (3)

chromium (8)

chromium-6 (8)

cobalt (8)

cylindrospermopsin (8)

dimethipin (3)

dimethyl tetrachloroterephthalate (DCPA) mono/di-acid degradate (3)

ethoprop (3)

Germanium (4)

HAA5 (five regulated haloacetic acids) (15)

HAA6Br (six brominated haloacetic acids) (15)

HAA9 (nine haloacetic acids) (15)

hexafluoropropylene oxide dimer acid (GenX) (4)

lithium (4)

Manganese (4)

methyl-tertiary-butyl-ether (MTBE) (4)

molinate (1)

molybdenum (8)

N-ethyl perfluorooctanesulfonamidoacetic acid (4)

N-methyl perfluorooctanesulfonamidoacetic acid (4)

nitrobenzene (4)

nonafluoro-3,6-dioxaheptanoic acid (4)

o-toluidine (4)

oxyfluorfen (3)

perchlorate (3)

perfluoro(2-ethoxyethane)sulfonic acid (4)

perfluoro-3-methoxypropanoic acid (4)

perfluoro-4-methoxybutanoic acid (4)

perfluorobutanesulfonic acid (8)

perfluorobutanoic acid (4)

perfluorodecanoic acid (4)

perfluorododecanoic acid (4)

perfluoroheptanesulfonic acid (4)

perfluoroheptanoic acid (8)

perfluorohexanesulfonic acid (8)

perfluorohexanoic acid (4)

perfluorononanoic acid (8)

perfluorooctanesulfonic acid (8)

perfluorooctanoic acid (8)

perfluoropentanesulfonic acid (4)

perfluoropentanoic acid (4)

perfluorotetradecanoic acid (4)

perfluorotridecanoic acid (4)

perfluoroundecanoic acid (4)

profenofos (3)

quinoline (4)

s-ethyl-dipropylthiocarbamate (EPTC) (1)

strontium (8)

tebuconazole (3)

terbacil (2)

total microcystins (8)

Total Permethrin (3)

tribufos (3)

vanadium (8)

Sampling Facilities

Treatment Plant
Surface Water (SW)

Lab TapEntry Point to the Distribution System (EP)

Distribution System
Surface Water (SW)

Thibodaux Lab TapDistribution System (DS)
Oakley St.Distribution System (DS)
E. 8th St.Distribution System (DS)
MelroseDistribution System (DS)

Distribution System
Surface Water (SW)

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

Treatment Plant
Surface Water (SW)

Lab Tap @ Water PlantEntry Point to the Distribution System (EP)

SURFACE RAW WATER INTAKE
Surface Water (SW)

SURFACE RAW WATER I 3BGJ-6Entry Point to the Distribution System (EP)

FAQ

Is Thibodaux Waterworks tap water safe to drink?

When was Thibodaux Waterworks last tested for water contamination?

The latest water samples were taken on March 10th, 2025.