Hilton Head PSD #1 (SC) Water Quality

Hilton Head PSD #1 is a large public water system in EPA region 4 that provides tap water for the 29926 zip codes. It has 12 facilities where the water supply was tested for 68 chemical contaminants that impact tap water quality and human health.

The maximum reported level of HAA5 (five regulated haloacetic acids) was 15.16 µg/L. The maximum reported level of Manganese was 31.1 µg/L. The maximum reported level of quinoline was 0.0281 µg/L. Some (1 of 16 or 6%) of the latest water samples showed levels of quinoline that were at or above unsafe concentration levels. There were 3 contamintants found in the Hilton Head PSD #1 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.

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Contaminants

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• 1,1-dichloroethane (16)
• 1,2,3-trichloropropane (16)
• 1,3-butadiene (16)
• 1,4-dioxane (16)
• 1-butanol (16)
• 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (14)
• 1H,1H,2H,2H-perfluorodecane sulfonic acid (14)
• 1H,1H,2H,2H-perfluorohexane sulfonic acid (14)
• 1H,1H,2H,2H-perfluorooctane sulfonic acid (14)
• 2-methoxyethanol (16)
• 2-propen-1-ol (Allyl Alcohol) (16)
• 4,8-dioxa-3H-perfluorononanoic acid (14)
• 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (14)
• alpha-hexachlorocyclohexane (16)
• anatoxin-a (8)
• bromochloromethane (Halon 1011) (16)
• bromomethane (16)
• Butylated Hydroxyanisole (16)
• chlorate (20)
• chlorodifluoromethane (HCFC-22) (16)
• chloromethane (16)
• chlorpyrifos (16)
• chromium (20)
• chromium-6 (20)
• cobalt (20)
• cylindrospermopsin (8)
• dimethipin (16)
• ethoprop (16)
• Germanium (16)
• HAA5 (five regulated haloacetic acids) (16)
• HAA6Br (six brominated haloacetic acids) (16)
• HAA9 (nine haloacetic acids) (16)
• hexafluoropropylene oxide dimer acid (GenX) (14)
• lithium (14)
• Manganese (16)
• molybdenum (20)
• N-ethyl perfluorooctanesulfonamidoacetic acid (14)
• N-methyl perfluorooctanesulfonamidoacetic acid (14)
• nonafluoro-3,6-dioxaheptanoic acid (14)
• o-toluidine (16)
• oxyfluorfen (16)
• perfluoro(2-ethoxyethane)sulfonic acid (14)
• perfluoro-3-methoxypropanoic acid (14)
• perfluoro-4-methoxybutanoic acid (14)
• perfluorobutanesulfonic acid (30)
• perfluorobutanoic acid (14)
• perfluorodecanoic acid (14)
• perfluorododecanoic acid (14)
• perfluoroheptanesulfonic acid (14)
• perfluoroheptanoic acid (30)
• perfluorohexanesulfonic acid (30)
• perfluorohexanoic acid (14)
• perfluorononanoic acid (30)
• perfluorooctanesulfonic acid (30)
• perfluorooctanoic acid (30)
• perfluoropentanesulfonic acid (14)
• perfluoropentanoic acid (14)
• perfluorotetradecanoic acid (14)
• perfluorotridecanoic acid (14)
• perfluoroundecanoic acid (14)
• profenofos (16)
• quinoline (16)
• strontium (20)
• tebuconazole (16)
• total microcystins (8)
• Total Permethrin (16)
• tribufos (16)
• vanadium (20)