Maryland American Water--Severn System

Published drinking-water records and contacts for Maryland American Water--Severn System. System MD0020027. Review sources and dates; not a real-time water assessment.

System ID: MD0020027
State or territory: MD
Published population served: 5447
System type (source code): CWS

Published records and dates

PFAS / lithium (EPA UCMR 5): 60 — 2024-06-04 – 2024-12-30
Lead and copper monitoring summaries: 15 — 1992-07-01 – 2024-12-31
Maryland MDE PFAS study — Phase 3: 36 — 2022-05-04 – 2022-05-04

Missing records here do not mean the provider did not test. Published records are not a real-time assessment of your tap water.

Published testing results

Selected recent records are shown below. Different sampling locations and dates are not interchangeable. These excerpts are not a complete testing history.

“<” means below the stated reporting limit, not zero. A reported measurement alone is not a safety verdict. Read an example

EPA UCMR 5 — most recent imported sample per substance
Substance	Published result	Reporting limit	Sample date	Sampling location
11Cl-PF3OUdS	< 0.005 µg/L	0.005 µg/L	2024-12-30	SEVERN WATER COMPANY / EP01
4:2 FTS	< 0.003 µg/L	0.003 µg/L	2024-12-30	SEVERN WATER COMPANY / EP01
6:2 FTS	< 0.005 µg/L	0.005 µg/L	2024-12-30	SEVERN WATER COMPANY / EP01
8:2 FTS	< 0.005 µg/L	0.005 µg/L	2024-12-30	SEVERN WATER COMPANY / EP01
9Cl-PF3ONS	< 0.002 µg/L	0.002 µg/L	2024-12-30	SEVERN WATER COMPANY / EP01
ADONA	< 0.003 µg/L	0.003 µg/L	2024-12-30	SEVERN WATER COMPANY / EP01
HFPO-DA	< 0.005 µg/L	0.005 µg/L	2024-12-30	SEVERN WATER COMPANY / EP01
NEtFOSAA	< 0.005 µg/L	0.005 µg/L	2024-12-30	SEVERN WATER COMPANY / EP01
NFDHA	< 0.02 µg/L	0.02 µg/L	2024-12-30	SEVERN WATER COMPANY / EP01
NMeFOSAA	< 0.006 µg/L	0.006 µg/L	2024-12-30	SEVERN WATER COMPANY / EP01
PFBA	< 0.005 µg/L	0.005 µg/L	2024-12-30	SEVERN WATER COMPANY / EP01
PFBS	< 0.003 µg/L	0.003 µg/L	2024-12-30	SEVERN WATER COMPANY / EP01
PFDA	< 0.003 µg/L	0.003 µg/L	2024-12-30	SEVERN WATER COMPANY / EP01
PFDoA	< 0.003 µg/L	0.003 µg/L	2024-12-30	SEVERN WATER COMPANY / EP01
PFEESA	< 0.003 µg/L	0.003 µg/L	2024-12-30	SEVERN WATER COMPANY / EP01
PFHpA	< 0.003 µg/L	0.003 µg/L	2024-12-30	SEVERN WATER COMPANY / EP01
PFHpS	< 0.003 µg/L	0.003 µg/L	2024-12-30	SEVERN WATER COMPANY / EP01
PFHxA	< 0.003 µg/L	0.003 µg/L	2024-12-30	SEVERN WATER COMPANY / EP01
PFHxS	< 0.003 µg/L	0.003 µg/L	2024-12-30	SEVERN WATER COMPANY / EP01
PFMBA	< 0.003 µg/L	0.003 µg/L	2024-12-30	SEVERN WATER COMPANY / EP01
PFMPA	< 0.004 µg/L	0.004 µg/L	2024-12-30	SEVERN WATER COMPANY / EP01
PFNA	< 0.004 µg/L	0.004 µg/L	2024-12-30	SEVERN WATER COMPANY / EP01
PFOA	< 0.004 µg/L	0.004 µg/L	2024-12-30	SEVERN WATER COMPANY / EP01
PFOS	< 0.004 µg/L	0.004 µg/L	2024-12-30	SEVERN WATER COMPANY / EP01
PFPeA	< 0.003 µg/L	0.003 µg/L	2024-12-30	SEVERN WATER COMPANY / EP01
PFPeS	< 0.004 µg/L	0.004 µg/L	2024-12-30	SEVERN WATER COMPANY / EP01
PFTA	< 0.008 µg/L	0.008 µg/L	2024-12-30	SEVERN WATER COMPANY / EP01
PFTrDA	< 0.007 µg/L	0.007 µg/L	2024-12-30	SEVERN WATER COMPANY / EP01
PFUnA	< 0.002 µg/L	0.002 µg/L	2024-12-30	SEVERN WATER COMPANY / EP01
lithium	< 9 µg/L	9 µg/L	2024-12-30	SEVERN WATER COMPANY / EP01

Download all EPA UCMR 5 records (CSV)

Lead and copper: 90th-percentile summaries

These describe a monitoring period across sampled locations, not the result at your home. How to read the 90th percentile

Eight most recent imported monitoring summaries
Substance	Published 90th percentile	Monitoring period	Source quarter
Lead (PB90)	0 mg/L	2022-01-01 – 2024-12-31	2026Q3
Lead (PB90)	0 mg/L	2019-01-01 – 2021-12-31	2026Q3
Lead (PB90)	0 mg/L	2016-01-01 – 2018-12-31	2026Q3
Lead (PB90)	0.003 mg/L	2013-01-01 – 2015-12-31	2026Q3
Lead (PB90)	0.003 mg/L	2010-01-01 – 2012-12-31	2026Q3
Lead (PB90)	0 mg/L	2007-01-01 – 2009-12-31	2026Q3
Lead (PB90)	0 mg/L	2004-01-01 – 2006-12-31	2026Q3
Lead (PB90)	0.003 mg/L	2001-01-01 – 2003-12-31	2026Q3

Twelve most recent imported state laboratory records
Substance	Published result	Sample date	Location / source
11Cl-PF3OUdS	Below a limit; numeric threshold unavailable ppt	2022-05-04	SEVERN WATER COMPANY WELL 1 AA700369 / Maryland MDE PFAS study — Phase 3
9Cl-PF3ONS	Below a limit; numeric threshold unavailable ppt	2022-05-04	SEVERN WATER COMPANY WELL 1 AA700369 / Maryland MDE PFAS study — Phase 3
ADONA	Below a limit; numeric threshold unavailable ppt	2022-05-04	SEVERN WATER COMPANY WELL 1 AA700369 / Maryland MDE PFAS study — Phase 3
HFPO-DA	Below a limit; numeric threshold unavailable ppt	2022-05-04	SEVERN WATER COMPANY WELL 1 AA700369 / Maryland MDE PFAS study — Phase 3
N-EtFOSAA	Below a limit; numeric threshold unavailable ppt	2022-05-04	SEVERN WATER COMPANY WELL 1 AA700369 / Maryland MDE PFAS study — Phase 3
N-MeFOSAA	Below a limit; numeric threshold unavailable ppt	2022-05-04	SEVERN WATER COMPANY WELL 1 AA700369 / Maryland MDE PFAS study — Phase 3
PFBS	Below a limit; numeric threshold unavailable ppt	2022-05-04	SEVERN WATER COMPANY WELL 1 AA700369 / Maryland MDE PFAS study — Phase 3
PFDA	Below a limit; numeric threshold unavailable ppt	2022-05-04	SEVERN WATER COMPANY WELL 1 AA700369 / Maryland MDE PFAS study — Phase 3
PFDoA	Below a limit; numeric threshold unavailable ppt	2022-05-04	SEVERN WATER COMPANY WELL 1 AA700369 / Maryland MDE PFAS study — Phase 3
PFHpA	Below a limit; numeric threshold unavailable ppt	2022-05-04	SEVERN WATER COMPANY WELL 1 AA700369 / Maryland MDE PFAS study — Phase 3
PFHxA	Below a limit; numeric threshold unavailable ppt	2022-05-04	SEVERN WATER COMPANY WELL 1 AA700369 / Maryland MDE PFAS study — Phase 3
PFHxS	Below a limit; numeric threshold unavailable ppt	2022-05-04	SEVERN WATER COMPANY WELL 1 AA700369 / Maryland MDE PFAS study — Phase 3

State sampling points can include untreated water. Publisher qualifiers and units are retained; consult the full source notes before interpreting a record.

Download state records with source notes (CSV)

Published compliance history

1 imported records. Status is as recorded in the source; historical records are not current advisories. Missing records do not establish that no violations occurred.

Twenty most recent imported compliance records
Rule / record	Period	Recorded status	Health-based (EPA classification)	Source quarter
Revised Total Coliform Rule / Monitoring, Routine (RTCR)	2023-03-01 – 2023-03-31	Resolved	No	2026Q3

Source dates and refresh checks

A refresh check is not a sample date. Publication periods, sample dates and checks are shown separately.

EPA SDWIS lead/copper summaries and service areas — source period: — – —; last checked: 2026-10-17
EPA SDWIS contacts and compliance records — source period: — – —; last checked: 2026-10-17
EPA UCMR 5 sample results — source period: 2023-01-03 – 2026-06-17; last checked: 2026-10-17
Maryland MDE PFAS study — Phase 3 — last successful check: 2026-10-17

Administrative contact (EPA filing)

Barton, Jeff: 410-838-8404

An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.

Official state resources · How to read these records