Cecil County Water Quality
Cecil County, Maryland: 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.
Perfluorooctanoic acid (PFOA)TOWN OF ELKTON4.0 ng/L federal MCL (2024) · US EPA23.3 ng/L
- TOWN OF ELKTON23.3 ng/LSample date: 2024-06-17 to 2025-06-30
Perfluorooctanesulfonic acid (PFOS)TOWN OF ELKTON4.0 ng/L federal MCL (2024) · US EPA7.1 ng/L
- TOWN OF ELKTON7.1 ng/LSample date: 2024-06-17 to 2025-06-30
Perfluorohexanesulfonic acid (PFHxS)TOWN OF ELKTON10 ng/L federal MCL (2024) · US EPA4.4 ng/L
- TOWN OF ELKTON4.4 ng/LSample date: 2024-06-17 to 2025-06-30
Perfluorobutanesulfonic acid (PFBS)TOWN OF ELKTON2,000 ng/L EPA health advisory (screening, not a legal limit) · US EPA12.3 ng/L
- TOWN OF ELKTON12.3 ng/LSample date: 2024-06-17 to 2025-06-30
Perfluorohexanoic acid (PFHxA)TOWN OF ELKTON400,000 ng/L Michigan EGLE state MCL (strictest US state) · Michigan EGLE12.8 ng/L
- TOWN OF ELKTON12.8 ng/LSample date: 2024-06-17 to 2025-06-30
Perfluorobutanoic acid (PFBA)TOWN OF ELKTONNo federal or state limit; shown for transparency8.6 ng/L
- TOWN OF ELKTON8.6 ng/LSample date: 2024-06-17 to 2025-06-30
Perfluoroheptanoic acid (PFHpA)TOWN OF ELKTONNo federal or state limit; shown for transparency6.5 ng/L
- TOWN OF ELKTON6.5 ng/LSample date: 2024-06-17 to 2025-06-30
Perfluoropentanoic acid (PFPeA)TOWN OF ELKTONNo federal or state limit; shown for transparency14.4 ng/L
- TOWN OF ELKTON14.4 ng/LSample date: 2024-06-17 to 2025-06-30
23 substances tested, none detected in this systemShow
Tested in this system: TOWN OF ELKTON
- 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)
- Lead (90th percentile)
- 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)
- Perfluorodecanoic acid (PFDA)
- Perfluorododecanoic acid (PFDoA)
- Perfluoroheptanesulfonic acid (PFHpS)
- 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 MarylandLargest water systems
- ElktonTOWN OF ELKTON · MD007001115,625 served
Frequently asked
How does Cecil County tap water compare across cities?
PurityMap ranks 1 city in Cecil 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 Elkton's main water system: TOWN OF ELKTON · PWSID MD0070011 · Purity Score 54 (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 Cecil County cities had a PFAS sample above a 2024 EPA limit?
1 of 1 Cecil County city report had a PFAS sample above a 2024 EPA limit in EPA's UCMR 5 testing, including Elkton (PFOA 23.3 ng/L). That limit is judged on a yearly average, and water systems have until 2029 to meet it, so a single sample is not a violation. PFAS were detected at any level in 1.
Is there lead in Cecil County tap water?
Utilities report lead as a 90th-percentile result from home taps. 0 of 1 Cecil 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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