Rapides Parish Waterworks District #3 (LA) Water Quality

Rapides Parish Waterworks District #3 is a large public water system in EPA region 6 that provides tap water for the 71360, 71467 zip codes. It has 12 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 74.74 µg/L. Some (3 of 8 or 38%) of the latest water samples showed levels of HAA5 (five regulated haloacetic acids) that were at or above unsafe concentration levels. The maximum reported level of Manganese was 31.8 µg/L. There were 2 contamintants found in the Rapides Parish Waterworks District #3 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 (10)

1,2,3-trichloropropane (10)

1,3-butadiene (10)

1,4-dioxane (10)

1-butanol (4)

11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (9)

1H,1H,2H,2H-perfluorodecane sulfonic acid (9)

1H,1H,2H,2H-perfluorohexane sulfonic acid (9)

1H,1H,2H,2H-perfluorooctane sulfonic acid (9)

2,4-dinitrotoluene (2)

2,6-dinitrotoluene (2)

2-methoxyethanol (4)

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

4,4'-dichloro dichlorophenyl ethylene (DDE) (3)

4,8-dioxa-3H-perfluorononanoic acid (9)

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

alpha-hexachlorocyclohexane (4)

anatoxin-a (8)

bromochloromethane (Halon 1011) (10)

bromomethane (10)

Butylated Hydroxyanisole (4)

chlorate (20)

chlorodifluoromethane (HCFC-22) (10)

chloromethane (10)

chlorpyrifos (4)

chromium (20)

chromium-6 (20)

cobalt (20)

cylindrospermopsin (8)

dimethipin (4)

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

ethoprop (4)

Germanium (4)

HAA5 (five regulated haloacetic acids) (8)

HAA6Br (six brominated haloacetic acids) (8)

HAA9 (nine haloacetic acids) (8)

hexafluoropropylene oxide dimer acid (GenX) (9)

lithium (10)

Manganese (4)

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

molinate (2)

molybdenum (20)

N-ethyl perfluorooctanesulfonamidoacetic acid (10)

N-methyl perfluorooctanesulfonamidoacetic acid (10)

nitrobenzene (4)

nonafluoro-3,6-dioxaheptanoic acid (9)

o-toluidine (4)

oxyfluorfen (4)

perchlorate (4)

perfluoro(2-ethoxyethane)sulfonic acid (9)

perfluoro-3-methoxypropanoic acid (9)

perfluoro-4-methoxybutanoic acid (9)

perfluorobutanesulfonic acid (19)

perfluorobutanoic acid (9)

perfluorodecanoic acid (9)

perfluorododecanoic acid (9)

perfluoroheptanesulfonic acid (9)

perfluoroheptanoic acid (19)

perfluorohexanesulfonic acid (19)

perfluorohexanoic acid (9)

perfluorononanoic acid (19)

perfluorooctanesulfonic acid (19)

perfluorooctanoic acid (19)

perfluoropentanesulfonic acid (9)

perfluoropentanoic acid (9)

perfluorotetradecanoic acid (10)

perfluorotridecanoic acid (10)

perfluoroundecanoic acid (9)

profenofos (4)

quinoline (4)

s-ethyl-dipropylthiocarbamate (EPTC) (2)

strontium (20)

tebuconazole (4)

terbacil (3)

total microcystins (8)

Total Permethrin (4)

tribufos (4)

vanadium (20)

Sampling Facilities

Well #4 Treatment
Ground Water (GW)

Entry Point to Dist. SystemEntry Point to the Distribution System (EP)

Surface Water Treatment Plant
Surface Water (SW)

Entry Point to Dist. SystemEntry Point to the Distribution System (EP)

Well #7 Treatment
Ground Water (GW)

Entry Point to Dist. SystemEntry Point to the Distribution System (EP)

Well #9
Ground Water (GW)

Entry Point to Distribution SystemEntry Point to the Distribution System (EP)

Distribution System
Multiple Sources (MX)

Rifle Range Rd.Distribution System (DS)
Tioga Rd. & Adams Dr.Distribution System (DS)
Point of EntryDistribution System (DS)
Donahue Ferry & WhittingtonDistribution System (DS)
DSMRT for Well 4Maximum Residence Time (MR)
DSMRT for Well 5Maximum Residence Time (MR)
DSMRT for Wells 2 & 7Maximum Residence Time (MR)

Distribution System - SW
Surface Water (SW)

DSMRT for Treatment PlantMaximum Residence Time (MR)

Water Treatment Plant
Surface Water (SW)

Treatment Plant POEEntry Point to the Distribution System (EP)

Well 4
Ground Water (GW)

EP Well 4Entry Point to the Distribution System (EP)

Well 5
Ground Water (GW)

EP Well 5Entry Point to the Distribution System (EP)

Wells 2 & 7
Ground Water (GW)

EP Wells 2 & 7Entry Point to the Distribution System (EP)

EP WELL 3
Surface Water (SW)

EP WELL 3Entry Point to the Distribution System (EP)

SURFACE H2O PLANT
Surface Water (SW)

SURFACE H2O PLANT 6IFV-6Entry Point to the Distribution System (EP)

FAQ

Is Rapides Parish Waterworks District #3 tap water safe to drink?

When was Rapides Parish Waterworks District #3 last tested for water contamination?

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