Greenwood County Water Quality
Greenwood County, South Carolina: one city report built from EPA and utility records. A county has many suppliers; each city shows the system that serves it.
Highest result for each contaminant
One row per contaminant: the highest result any system in the county reported, against its limit. Open a row for the systems behind it.
Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals)GREENWOOD CPW (2410001)10 ng/L federal MCL (2024) · US EPA91.1 ng/L
- GREENWOOD CPW (2410001)91.1 ng/LSample date: 2025-03-04 to 2025-12-03
Perfluorooctanesulfonic acid (PFOS)GREENWOOD CPW (2410001)4.0 ng/L federal MCL (2024) · US EPA8.7 ng/L
- GREENWOOD CPW (2410001)8.7 ng/LSample date: 2025-03-04 to 2025-12-03
Perfluorooctanoic acid (PFOA)GREENWOOD CPW (2410001)4.0 ng/L federal MCL (2024) · US EPA5.9 ng/L
- GREENWOOD CPW (2410001)5.9 ng/LSample date: 2025-03-04 to 2025-12-03
Lead (90th percentile)GREENWOOD CPW (2410001)15 µg/L federal action level · US EPA4 µg/L
- GREENWOOD CPW (2410001)4 µg/LMonitoring period: 2021–2023
Perfluorobutanesulfonic acid (PFBS)GREENWOOD CPW (2410001)2,000 ng/L EPA health advisory (screening, not a legal limit) · US EPA4.6 ng/L
- GREENWOOD CPW (2410001)4.6 ng/LSample date: 2025-03-04 to 2025-12-03
Perfluorohexanoic acid (PFHxA)GREENWOOD CPW (2410001)400,000 ng/L Michigan EGLE state MCL (strictest US state) · Michigan EGLE6.1 ng/L
- GREENWOOD CPW (2410001)6.1 ng/LSample date: 2025-03-04 to 2025-12-03
Perfluoropentanoic acid (PFPeA)GREENWOOD CPW (2410001)No federal or state limit; shown for transparency7 ng/L
- GREENWOOD CPW (2410001)7 ng/LSample date: 2025-03-04 to 2025-12-03
24 substances tested, none detected in this systemShow
Tested in this system: GREENWOOD CPW (2410001)
- 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)
- 1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS)
- 1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS)
- 1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS)
- 4,8-Dioxa-3H-perfluorononanoic acid (ADONA)
- 9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS)
- Lithium
- N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)
- N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)
- Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)
- Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA)
- Perfluoro-3-methoxypropanoic acid (PFMPA)
- Perfluoro-4-methoxybutanoic acid (PFMBA)
- Perfluorobutanoic acid (PFBA)
- Perfluorodecanoic acid (PFDA)
- Perfluorododecanoic acid (PFDoA)
- Perfluoroheptanesulfonic acid (PFHpS)
- Perfluoroheptanoic acid (PFHpA)
- Perfluorohexanesulfonic acid (PFHxS)
- Perfluorononanoic acid (PFNA)
- Perfluoropentanesulfonic acid (PFPeS)
- Perfluorotetradecanoic acid (PFTA)
- Perfluorotridecanoic acid (PFTrDA)
- Perfluoroundecanoic acid (PFUnA)
Cities ranked by the records
Ranked by the Purity Score of each city's main water system, highest first. Scores belong to water systems; there is no county score. The score is computed only from contaminants measured in the published EPA record, so this ranks the record, not which city's water is safest. How the score works.
0of 1 city above the 15 µg/L action level
Based on each system's 90th-percentile result. Lead from household plumbing isn't in this record.
Lead in South CarolinaLargest water systems
- GreenwoodGREENWOOD CPW (2410001) · SC241000152,022 served
Frequently asked
How does Greenwood County tap water compare across cities?
PurityMap ranks 1 city in Greenwood County by the Purity Score of each city's main water system, computed only from contaminants measured in the published EPA record. Scores belong to water systems, not to cities. The highest published score is Greenwood's main water system: GREENWOOD CPW (2410001) · PWSID SC2410001 · Purity Score 52 (Poor) · Confidence: moderate · Assessed at the water-system level. The ranking compares the records, not which city's water is safest, and your own tap can differ with household plumbing.
How many Greenwood County cities have PFAS above the federal limit?
1 city of 1 had at least one regulated PFAS (PFOA, PFOS or PFHxS) measured above the 2024 federal limit in EPA's UCMR 5 testing, including Greenwood (HFPO-DA (GenX) 91.1 ng/L). PFAS were detected at any level in 1.
Is there lead in Greenwood County tap water?
Utilities report lead as a 90th-percentile result from home taps. 1 of 1 Greenwood County cities reported a value above zero, and none was above the 15 µg/L federal action level. Lead usually comes from a building's own pipes and fixtures, so only a test at your tap tells you what you drink.
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