Newport County Water Quality
Newport County, Rhode Island: 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.
Lead (90th percentile)NEWPORT-CITY OF15 µg/L federal action level · US EPA4.4 µg/L
- NEWPORT-CITY OF4.4 µg/LMonitoring period: 2025–2027 (still open)
Perfluorohexanoic acid (PFHxA)NEWPORT-CITY OF400,000 ng/L Michigan EGLE state MCL (strictest US state) · Michigan EGLE5.1 ng/L
- NEWPORT-CITY OF5.1 ng/LSample date: 2023-02-08 to 2024-01-16
Perfluorobutanoic acid (PFBA)NEWPORT-CITY OFNo federal or state limit; shown for transparency5.9 ng/L
- NEWPORT-CITY OF5.9 ng/LSample date: 2023-02-08 to 2024-01-16
Perfluoropentanoic acid (PFPeA)NEWPORT-CITY OFNo federal or state limit; shown for transparency6.1 ng/L
- NEWPORT-CITY OF6.1 ng/LSample date: 2023-02-08 to 2024-01-16
27 substances tested, none detected in this systemShow
Tested in this system: NEWPORT-CITY OF
- 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)
- Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals)
- 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)
- Perfluorobutanesulfonic acid (PFBS)
- Perfluorodecanoic acid (PFDA)
- Perfluorododecanoic acid (PFDoA)
- Perfluoroheptanesulfonic acid (PFHpS)
- Perfluoroheptanoic acid (PFHpA)
- Perfluorohexanesulfonic acid (PFHxS)
- Perfluorononanoic acid (PFNA)
- Perfluorooctanesulfonic acid (PFOS)
- Perfluorooctanoic acid (PFOA)
- 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 Rhode IslandLargest water systems
- NewportNEWPORT-CITY OF · RI159201042,155 served
Frequently asked
How does Newport County tap water compare across cities?
PurityMap ranks 1 city in Newport 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 Newport's main water system: NEWPORT-CITY OF · PWSID RI1592010 · Purity Score 95 (Excellent) · 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 Newport County cities had a PFAS sample above a 2024 EPA limit?
None of the 1 Newport County city report had a PFAS sample above a 2024 EPA limit in EPA's UCMR 5 testing. PFAS were detected below the limit in 1.
Is there lead in Newport County tap water?
Utilities report lead as a 90th-percentile result from home taps. 1 of 1 Newport 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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