Lancaster Water Department

Published drinking-water records and contacts for Lancaster Water Department. System MA2147000. Review sources and dates; not a real-time water assessment.

System ID: MA2147000
State or territory: MA
Published population served: 6000
System type (source code): CWS

Published records and dates

PFAS / lithium (EPA UCMR 5): 120 — 2025-03-03 – 2025-09-08
Lead and copper monitoring summaries: 16 — 1992-07-01 – 2026-12-31
Massachusetts EEA PFAS monitoring results: 428 — 2020-02-11 – 2026-04-14

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

Read the provider’s annual water quality report

Report link listed: 2026-10-09. This is not the report’s sampling date.

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	2025-09-08	GP WELL # 1 Bolton Rd Well 1 WTP / 01G
4:2 FTS	< 0.003 µg/L	0.003 µg/L	2025-09-08	GP WELL # 2 Bolton Rd Well 2 WTP / 02G
6:2 FTS	< 0.005 µg/L	0.005 µg/L	2025-09-08	GP WELL # 2 Bolton Rd Well 2 WTP / 02G
8:2 FTS	< 0.005 µg/L	0.005 µg/L	2025-09-08	GP WELL # 2 Bolton Rd Well 2 WTP / 02G
9Cl-PF3ONS	< 0.002 µg/L	0.002 µg/L	2025-09-08	GP WELL # 2 Bolton Rd Well 2 WTP / 02G
ADONA	< 0.003 µg/L	0.003 µg/L	2025-09-08	GP WELL # 2 Bolton Rd Well 2 WTP / 02G
HFPO-DA	< 0.005 µg/L	0.005 µg/L	2025-09-08	GP WELL # 1 Bolton Rd Well 1 WTP / 01G
NEtFOSAA	< 0.005 µg/L	0.005 µg/L	2025-09-08	GP WELL # 1 Bolton Rd Well 1 WTP / 01G
NFDHA	< 0.02 µg/L	0.02 µg/L	2025-09-08	GP WELL # 2 Bolton Rd Well 2 WTP / 02G
NMeFOSAA	< 0.006 µg/L	0.006 µg/L	2025-09-08	GP WELL # 1 Bolton Rd Well 1 WTP / 01G
PFBA	< 0.005 µg/L	0.005 µg/L	2025-09-08	GP WELL # 2 Bolton Rd Well 2 WTP / 02G
PFBS	< 0.003 µg/L	0.003 µg/L	2025-09-08	GP WELL # 2 Bolton Rd Well 2 WTP / 02G
PFDA	< 0.003 µg/L	0.003 µg/L	2025-09-08	GP WELL # 2 Bolton Rd Well 2 WTP / 02G
PFDoA	< 0.003 µg/L	0.003 µg/L	2025-09-08	GP WELL # 2 Bolton Rd Well 2 WTP / 02G
PFEESA	< 0.003 µg/L	0.003 µg/L	2025-09-08	GP WELL # 1 Bolton Rd Well 1 WTP / 01G
PFHpA	< 0.003 µg/L	0.003 µg/L	2025-09-08	GP WELL # 1 Bolton Rd Well 1 WTP / 01G
PFHpS	< 0.003 µg/L	0.003 µg/L	2025-09-08	GP WELL # 2 Bolton Rd Well 2 WTP / 02G
PFHxA	< 0.003 µg/L	0.003 µg/L	2025-09-08	GP WELL # 1 Bolton Rd Well 1 WTP / 01G
PFHxS	< 0.003 µg/L	0.003 µg/L	2025-09-08	GP WELL # 2 Bolton Rd Well 2 WTP / 02G
PFMBA	< 0.003 µg/L	0.003 µg/L	2025-09-08	GP WELL # 1 Bolton Rd Well 1 WTP / 01G
PFMPA	< 0.004 µg/L	0.004 µg/L	2025-09-08	GP WELL # 2 Bolton Rd Well 2 WTP / 02G
PFNA	< 0.004 µg/L	0.004 µg/L	2025-09-08	GP WELL # 1 Bolton Rd Well 1 WTP / 01G
PFOA	< 0.004 µg/L	0.004 µg/L	2025-09-08	GP WELL # 2 Bolton Rd Well 2 WTP / 02G
PFOS	< 0.004 µg/L	0.004 µg/L	2025-09-08	GP WELL # 1 Bolton Rd Well 1 WTP / 01G
PFPeA	< 0.003 µg/L	0.003 µg/L	2025-09-08	GP WELL # 2 Bolton Rd Well 2 WTP / 02G
PFPeS	< 0.004 µg/L	0.004 µg/L	2025-09-08	GP WELL # 1 Bolton Rd Well 1 WTP / 01G
PFTA	< 0.008 µg/L	0.008 µg/L	2025-09-08	GP WELL # 1 Bolton Rd Well 1 WTP / 01G
PFTrDA	< 0.007 µg/L	0.007 µg/L	2025-09-08	GP WELL # 1 Bolton Rd Well 1 WTP / 01G
PFUnA	< 0.002 µg/L	0.002 µg/L	2025-09-08	GP WELL # 2 Bolton Rd Well 2 WTP / 02G
lithium	< 9 µg/L	9 µg/L	2025-09-08	GP WELL # 1 Bolton Rd Well 1 WTP / 01G

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)	0.0169 mg/L	2024-01-01 – 2026-12-31	2026Q3
Lead (PB90)	0.008 mg/L	2026-01-01 – 2026-06-30	2026Q3
Lead (PB90)	0.007 mg/L	2021-01-01 – 2023-12-31	2026Q3
Lead (PB90)	0.008 mg/L	2018-01-01 – 2020-12-31	2026Q3
Lead (PB90)	0.013 mg/L	2015-01-01 – 2017-12-31	2026Q3
Lead (PB90)	0.0075 mg/L	2012-01-01 – 2014-12-31	2026Q3
Lead (PB90)	0.009 mg/L	2008-07-01 – 2011-06-30	2026Q3
Lead (PB90)	0.007 mg/L	2005-07-01 – 2008-06-30	2026Q3

Twelve most recent imported state laboratory records
Substance	Published result	Sample date	Location / source
PERFLUOROTRIDECANOIC ACID - PFTRDA	Below a limit; numeric threshold unavailable ng/L	2026-04-14	WELL #1 / Massachusetts EEA PFAS monitoring results
PERFLUOROHEXANESULFONIC ACID-PFHXS	0.727 J ng/L	2026-04-14	WELL #1 / Massachusetts EEA PFAS monitoring results
PERFLUORONONANOIC ACID-PFNA	Below a limit; numeric threshold unavailable ng/L	2026-04-14	WELL #1 / Massachusetts EEA PFAS monitoring results
4,8-DIOXA-3H-PERFLUORONONANOIC ACID - ADONA	Below a limit; numeric threshold unavailable ng/L	2026-04-14	WELL #1 / Massachusetts EEA PFAS monitoring results
N-METHYL PERFLUOROOCTANESULFONAMIDOACETIC ACID - NMEFOSAA	Below a limit; numeric threshold unavailable ng/L	2026-04-14	WELL #1 / Massachusetts EEA PFAS monitoring results
PERFLUOROHEXANOIC ACID - PFHXA	1.49 J ng/L	2026-04-14	WELL #1 / Massachusetts EEA PFAS monitoring results
N-ETHYL PERFLUOROOCTANESULFONAMIDOACETIC ACID - NETFOSAA	Below a limit; numeric threshold unavailable ng/L	2026-04-14	WELL #1 / Massachusetts EEA PFAS monitoring results
PERFLUOROUNDECANOIC ACID - PFUNA	Below a limit; numeric threshold unavailable ng/L	2026-04-14	WELL #1 / Massachusetts EEA PFAS monitoring results
PERFLUOROHEPTANOIC ACID-PFHPA	1.08 J ng/L	2026-04-14	WELL #1 / Massachusetts EEA PFAS monitoring results
9-CHLOROHEXADECAFLUORO-3-OXANONE-1-SULFONIC ACID-9CL-PF3ONS	Below a limit; numeric threshold unavailable ng/L	2026-04-14	WELL #1 / Massachusetts EEA PFAS monitoring results
PERFLUORODECANOIC ACID - PFDA	Below a limit; numeric threshold unavailable ng/L	2026-04-14	WELL #1 / Massachusetts EEA PFAS monitoring results
PERFLUORODODECANOIC ACID - PFDOA	Below a limit; numeric threshold unavailable ng/L	2026-04-14	WELL #1 / Massachusetts EEA PFAS monitoring results

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

2 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
Stage 2 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP)	2022-08-01 – 2022-08-31	Resolved	No	2026Q3
Stage 2 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP)	2022-08-01 – 2022-08-31	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
Massachusetts EEA PFAS monitoring results — last successful check: 2026-10-12

Administrative contact (EPA filing)

Lancaster Water Department: 9783652412

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