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Water utility · Calvert County · Maryland

Prince Frederick

No health-based violations on EPA record since 2016.

Serves about 4,371 people (1,561 connections) with groundwater from its own wells.

  • PWSID MD0040011
  • EPA registered name: PRINCE FREDERICK
  • EPA record checked May 18, 2026
Contact

Contact Prince Frederick

From EPA's record for MD0040011. PurityMap is independent of Prince Frederick.

Mailing address
CALVERT COUNTY WATER & SEWER, 30 DUKE STREET
PRINCE FREDERICK, MD 20678
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EPA compliance record

What EPA's record shows

No health-based violations in the last 10 years, from EPA's SDWIS compliance database.

  • Lead: the 90th-percentile result in the latest lead and copper round (the round ending December 31, 2023) was not detected. The federal action level is 15 µg/L, a trigger for more treatment steps, not a legal limit.
  • Missed or late tests or reports: 1 in 10 years.
  • EPA lists 4 enforcement actions in 10 years; the latest on July 1, 2025.
Lab results EPA required (UCMR 5)

None of the contaminants were detected in EPA testing

EPA required this system to test for 30 unregulated and emerging contaminants, from February 2024 to August 2024.

Results as a table30 results with limit, status, sample date and source
EPA-required lab results (UCMR 5) for Prince Frederick (PWSID MD0040011), Maryland
ContaminantResultLimitStatusSampledSource
11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)< 5 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-02-05 to 2024-08-06UCMR5 Analytical Results: PRINCE FREDERICK (MD0040011)
1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS)< 5 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-02-05 to 2024-08-06UCMR5 Analytical Results: PRINCE FREDERICK (MD0040011)
1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-02-05 to 2024-08-06UCMR5 Analytical Results: PRINCE FREDERICK (MD0040011)
1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS)< 5 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-02-05 to 2024-08-06UCMR5 Analytical Results: PRINCE FREDERICK (MD0040011)
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-02-05 to 2024-08-06UCMR5 Analytical Results: PRINCE FREDERICK (MD0040011)
9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS)< 2 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-02-05 to 2024-08-06UCMR5 Analytical Results: PRINCE FREDERICK (MD0040011)
Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals)< 5 ng/L10 ng/L federal MCL (2024)Not detected above the reporting limit2024-02-05 to 2024-08-06UCMR5 Analytical Results: PRINCE FREDERICK (MD0040011)
Lithium< 9 µg/L10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limitNot detected above the reporting limit2024-02-05 to 2024-08-06UCMR5 Analytical Results: PRINCE FREDERICK (MD0040011)
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)< 5 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-02-05 to 2024-08-06UCMR5 Analytical Results: PRINCE FREDERICK (MD0040011)
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)< 6 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-02-05 to 2024-08-06UCMR5 Analytical Results: PRINCE FREDERICK (MD0040011)
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)< 20 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-02-05 to 2024-08-06UCMR5 Analytical Results: PRINCE FREDERICK (MD0040011)
Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-02-05 to 2024-08-06UCMR5 Analytical Results: PRINCE FREDERICK (MD0040011)
Perfluoro-3-methoxypropanoic acid (PFMPA)< 4 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-02-05 to 2024-08-06UCMR5 Analytical Results: PRINCE FREDERICK (MD0040011)
Perfluoro-4-methoxybutanoic acid (PFMBA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-02-05 to 2024-08-06UCMR5 Analytical Results: PRINCE FREDERICK (MD0040011)
Perfluorobutanesulfonic acid (PFBS)< 3 ng/L2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limitNot detected above the reporting limit2024-02-05 to 2024-08-06UCMR5 Analytical Results: PRINCE FREDERICK (MD0040011)
Perfluorobutanoic acid (PFBA)< 5 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-02-05 to 2024-08-06UCMR5 Analytical Results: PRINCE FREDERICK (MD0040011)
Perfluorodecanoic acid (PFDA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-02-05 to 2024-08-06UCMR5 Analytical Results: PRINCE FREDERICK (MD0040011)
Perfluorododecanoic acid (PFDoA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-02-05 to 2024-08-06UCMR5 Analytical Results: PRINCE FREDERICK (MD0040011)
Perfluoroheptanesulfonic acid (PFHpS)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-02-05 to 2024-08-06UCMR5 Analytical Results: PRINCE FREDERICK (MD0040011)
Perfluoroheptanoic acid (PFHpA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-02-05 to 2024-08-06UCMR5 Analytical Results: PRINCE FREDERICK (MD0040011)
Perfluorohexanesulfonic acid (PFHxS)< 3 ng/L10 ng/L federal MCL (2024)Not detected above the reporting limit2024-02-05 to 2024-08-06UCMR5 Analytical Results: PRINCE FREDERICK (MD0040011)
Perfluorohexanoic acid (PFHxA)< 3 ng/L400,000 ng/L Michigan EGLE state MCL (strictest US state)Not detected above the reporting limit2024-02-05 to 2024-08-06UCMR5 Analytical Results: PRINCE FREDERICK (MD0040011)
Perfluorononanoic acid (PFNA)< 4 ng/L10 ng/L federal MCL (2024)Not detected above the reporting limit2024-02-05 to 2024-08-06UCMR5 Analytical Results: PRINCE FREDERICK (MD0040011)
Perfluorooctanesulfonic acid (PFOS)< 4 ng/L4.0 ng/L federal MCL (2024)Not detected above the reporting limit2024-02-05 to 2024-08-06UCMR5 Analytical Results: PRINCE FREDERICK (MD0040011)
Perfluorooctanoic acid (PFOA)< 4 ng/L4.0 ng/L federal MCL (2024)Not detected above the reporting limit2024-02-05 to 2024-08-06UCMR5 Analytical Results: PRINCE FREDERICK (MD0040011)
Perfluoropentanesulfonic acid (PFPeS)< 4 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-02-05 to 2024-08-06UCMR5 Analytical Results: PRINCE FREDERICK (MD0040011)
Perfluoropentanoic acid (PFPeA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-02-05 to 2024-08-06UCMR5 Analytical Results: PRINCE FREDERICK (MD0040011)
Perfluorotetradecanoic acid (PFTA)< 8 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-02-05 to 2024-08-06UCMR5 Analytical Results: PRINCE FREDERICK (MD0040011)
Perfluorotridecanoic acid (PFTrDA)< 7 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-02-05 to 2024-08-06UCMR5 Analytical Results: PRINCE FREDERICK (MD0040011)
Perfluoroundecanoic acid (PFUnA)< 2 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-02-05 to 2024-08-06UCMR5 Analytical Results: PRINCE FREDERICK (MD0040011)
Not detected (30)
  • 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)
  • 1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS)
  • 1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS)
  • 1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS)
  • 9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS)
  • 4,8-Dioxa-3H-perfluorononanoic acid (ADONA)
  • Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals)
  • N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)
  • Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)
  • N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)
  • Perfluorobutanoic acid (PFBA)
  • Perfluorobutanesulfonic acid (PFBS)
  • Perfluorodecanoic acid (PFDA)
  • Perfluorododecanoic acid (PFDoA)
  • Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA)
  • Perfluoroheptanoic acid (PFHpA)
  • Perfluoroheptanesulfonic acid (PFHpS)
  • Perfluorohexanoic acid (PFHxA)
  • Perfluorohexanesulfonic acid (PFHxS)
  • Perfluoro-4-methoxybutanoic acid (PFMBA)
  • Perfluoro-3-methoxypropanoic acid (PFMPA)
  • Perfluorononanoic acid (PFNA)
  • Perfluorooctanoic acid (PFOA)
  • Perfluorooctanesulfonic acid (PFOS)
  • Perfluoropentanoic acid (PFPeA)
  • Perfluoropentanesulfonic acid (PFPeS)
  • Perfluorotetradecanoic acid (PFTA)
  • Perfluorotridecanoic acid (PFTrDA)
  • Perfluoroundecanoic acid (PFUnA)
  • Lithium
Commercial · test your own tap

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Screening tells you if something is worth a closer look; a lab result is the number you can act on.

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  • Screening: quick check, not lab-grade

    Safe Home DIY Lead in Drinking Water Combo Test Kit

    Safe Home (EnviroTestKits)

    Lead, read as one of three ranges: 0–4, 5–15 or 15+ ppb

    Turnaround: 5 minutes

    What it can't tell you: It shows a lead range, not an exact level, and tests nothing else unless you pay extra for the optional lab test.

Questions

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What is the phone number for Prince Frederick?

Prince Frederick's phone number on EPA record is 410-474-0396. Its mailing address is CALVERT COUNTY WATER & SEWER, 30 DUKE STREET, PRINCE FREDERICK, MD 20678.

Where does Prince Frederick get its water?

According to EPA's record, Prince Frederick uses groundwater from its own wells.

Does Prince Frederick have any EPA violations?

No health-based violations on EPA record since 2016. EPA also lists 1 missed or late test or report in 10 years. The record comes from EPA's SDWIS compliance database.

What is Prince Frederick's latest lead result?

Lead was not detected at the 90th percentile of tap samples in Prince Frederick's latest lead and copper round, which ended in December 2023. The federal action level is 15 µg/L.

Who do I contact about my Prince Frederick water bill?

PurityMap has no verified website for Prince Frederick. Its phone number on EPA record is 410-474-0396. Its mailing address on EPA record is CALVERT COUNTY WATER & SEWER, 30 DUKE STREET, PRINCE FREDERICK, MD 20678. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.