Masac Plymouth
Published drinking-water records and contacts for Masac Plymouth. System MA4239010. Review sources and dates; not a real-time water assessment.
- System ID
- MA4239010
- State or territory
- MA
- Published population served
- 210
- System type (source code)
- CWS
Published records and dates
- Lead and copper monitoring summaries: 29 — 1993-07-01 – 2026-12-31
- Massachusetts EEA PFAS monitoring results: 86 — 2021-10-13 – 2024-08-01
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
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
| Substance | Published 90th percentile | Monitoring period | Source quarter |
|---|---|---|---|
| Lead (PB90) | 0 mg/L | 2026-01-01 – 2026-12-31 | 2026Q3 |
| Copper (CU90) | 2.095 mg/L | 2026-01-01 – 2026-12-31 | 2026Q3 |
| Lead (PB90) | 0.003 mg/L | 2025-01-01 – 2025-12-31 | 2026Q3 |
| Lead (PB90) | 0.007 mg/L | 2024-01-01 – 2024-12-31 | 2026Q3 |
| Lead (PB90) | 0.001 mg/L | 2023-01-01 – 2023-06-30 | 2026Q3 |
| Lead (PB90) | 0.009 mg/L | 2022-07-01 – 2022-12-31 | 2026Q3 |
| Lead (PB90) | 0.089 mg/L | 2022-01-01 – 2022-06-30 | 2026Q3 |
| Lead (PB90) | 0.022 mg/L | 2021-07-01 – 2021-12-31 | 2026Q3 |
| Substance | Published result | Sample date | Location / source |
|---|---|---|---|
| PERFLUOROTETRADECANOIC ACID - PFTA | Below a limit; numeric threshold unavailable ng/L | 2024-08-01 | WELL #1 RAW WATER / Massachusetts EEA PFAS monitoring results |
| PERFLUOROHEPTANOIC ACID-PFHPA | Below a limit; numeric threshold unavailable ng/L | 2024-08-01 | WELL #1 RAW WATER / Massachusetts EEA PFAS monitoring results |
| PERFLUOROOCTANESULFONIC ACID-PFOS | Below a limit; numeric threshold unavailable ng/L | 2024-08-01 | WELLS #2 AND #3 - 100 FT TAP / Massachusetts EEA PFAS monitoring results |
| PERFLUOROUNDECANOIC ACID - PFUNA | Below a limit; numeric threshold unavailable ng/L | 2024-08-01 | WELLS #2 AND #3 - 100 FT TAP / Massachusetts EEA PFAS monitoring results |
| PERFLUOROTRIDECANOIC ACID - PFTRDA | Below a limit; numeric threshold unavailable ng/L | 2024-08-01 | WELLS #2 AND #3 - 100 FT TAP / Massachusetts EEA PFAS monitoring results |
| HEXAFLUOROPROPYLENE OXIDE DIMER ACID - HFPO-DA | Below a limit; numeric threshold unavailable ng/L | 2024-08-01 | WELLS #2 AND #3 - 100 FT TAP / Massachusetts EEA PFAS monitoring results |
| 9-CHLOROHEXADECAFLUORO-3-OXANONE-1-SULFONIC ACID-9CL-PF3ONS | Below a limit; numeric threshold unavailable ng/L | 2024-08-01 | WELL #1 RAW WATER / Massachusetts EEA PFAS monitoring results |
| PERFLUOROBUTANESULFONIC ACID-PFBS | Below a limit; numeric threshold unavailable ng/L | 2024-08-01 | WELLS #2 AND #3 - 100 FT TAP / Massachusetts EEA PFAS monitoring results |
| PERFLUOROOCTANOIC ACID-PFOA | Below a limit; numeric threshold unavailable ng/L | 2024-08-01 | WELLS #2 AND #3 - 100 FT TAP / Massachusetts EEA PFAS monitoring results |
| PERFLUOROTETRADECANOIC ACID - PFTA | Below a limit; numeric threshold unavailable ng/L | 2024-08-01 | WELLS #2 AND #3 - 100 FT TAP / Massachusetts EEA PFAS monitoring results |
| PERFLUOROHEXANOIC ACID - PFHXA | Below a limit; numeric threshold unavailable ng/L | 2024-08-01 | WELLS #2 AND #3 - 100 FT TAP / Massachusetts EEA PFAS monitoring results |
| N-METHYL PERFLUOROOCTANESULFONAMIDOACETIC ACID - NMEFOSAA | Below a limit; numeric threshold unavailable ng/L | 2024-08-01 | WELLS #2 AND #3 - 100 FT TAP / 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
60 imported records. Status is as recorded in the source; historical records are not current advisories. Missing records do not establish that no violations occurred.
| Rule / record | Period | Recorded status | Health-based (EPA classification) | Source quarter |
|---|---|---|---|---|
| Revised Total Coliform Rule / Monitoring, Routine (RTCR) | 2016-06-01 – 2016-06-30 | Archived | No | 2026Q3 |
| Nitrate Rule / Monitoring, Regular | 2014-04-01 – 2014-06-30 | Archived | No | 2026Q3 |
| Nitrate Rule / Monitoring, Regular | 2006-04-01 – 2006-06-30 | Archived | No | 2026Q3 |
| Synthetic Organic Chemicals / Monitoring, Regular | 2005-10-01 – 2005-12-31 | Archived | No | 2026Q3 |
| Synthetic Organic Chemicals / Monitoring, Regular | 2005-10-01 – 2005-12-31 | Archived | No | 2026Q3 |
| Synthetic Organic Chemicals / Monitoring, Regular | 2005-10-01 – 2005-12-31 | Archived | No | 2026Q3 |
| Synthetic Organic Chemicals / Monitoring, Regular | 2005-10-01 – 2005-12-31 | Archived | No | 2026Q3 |
| Synthetic Organic Chemicals / Monitoring, Regular | 2005-10-01 – 2005-12-31 | Archived | No | 2026Q3 |
| Synthetic Organic Chemicals / Monitoring, Regular | 2005-10-01 – 2005-12-31 | Archived | No | 2026Q3 |
| Synthetic Organic Chemicals / Monitoring, Regular | 2005-10-01 – 2005-12-31 | Archived | No | 2026Q3 |
| Synthetic Organic Chemicals / Monitoring, Regular | 2005-10-01 – 2005-12-31 | Archived | No | 2026Q3 |
| Synthetic Organic Chemicals / Monitoring, Regular | 2005-10-01 – 2005-12-31 | Archived | No | 2026Q3 |
| Synthetic Organic Chemicals / Monitoring, Regular | 2005-10-01 – 2005-12-31 | Archived | No | 2026Q3 |
| Synthetic Organic Chemicals / Monitoring, Regular | 2005-10-01 – 2005-12-31 | Archived | No | 2026Q3 |
| Synthetic Organic Chemicals / Monitoring, Regular | 2005-10-01 – 2005-12-31 | Archived | No | 2026Q3 |
| Synthetic Organic Chemicals / Monitoring, Regular | 2005-10-01 – 2005-12-31 | Archived | No | 2026Q3 |
| Synthetic Organic Chemicals / Monitoring, Regular | 2005-10-01 – 2005-12-31 | Archived | No | 2026Q3 |
| Synthetic Organic Chemicals / Monitoring, Regular | 2005-10-01 – 2005-12-31 | Archived | No | 2026Q3 |
| Synthetic Organic Chemicals / Monitoring, Regular | 2005-10-01 – 2005-12-31 | Archived | No | 2026Q3 |
| Synthetic Organic Chemicals / Monitoring, Regular | 2005-10-01 – 2005-12-31 | Archived | 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)
Mass Department of Correction/Drm: 5082912441
An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.