No health-based violations on EPA record since 2016.
Serves about 3,500 people (3 connections) with groundwater from its own wells, and buys water from Devens Massdevelopment.
From EPA's record for MA2270001. PurityMap is independent of MCI Shirley.
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No health-based violations in the last 10 years, from EPA's SDWIS compliance database.
EPA required this system to test for 30 unregulated and emerging contaminants, from August 2023 to December 2023.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Perfluorohexanesulfonic acid (PFHxS) | 8.7 ng/L | 10 ng/L federal MCL (2024) | Within a historical reference; current applicability unverified | 2023-08-21 to 2023-10-31 | UCMR5 Analytical Results: MCI SHIRLEY (MA2270001) |
| 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-08-21 to 2023-10-31 | UCMR5 Analytical Results: MCI SHIRLEY (MA2270001) |
| 1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-08-21 to 2023-10-31 | UCMR5 Analytical Results: MCI SHIRLEY (MA2270001) |
| 1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-08-21 to 2023-10-31 | UCMR5 Analytical Results: MCI SHIRLEY (MA2270001) |
| 1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-08-21 to 2023-10-31 | UCMR5 Analytical Results: MCI SHIRLEY (MA2270001) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-08-21 to 2023-10-31 | UCMR5 Analytical Results: MCI SHIRLEY (MA2270001) |
| 9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-08-21 to 2023-10-31 | UCMR5 Analytical Results: MCI SHIRLEY (MA2270001) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-08-21 to 2023-10-31 | UCMR5 Analytical Results: MCI SHIRLEY (MA2270001) |
| Lithium | < 9 µg/L | 10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit | Not detected above the reporting limit | 2023-08-21 to 2023-10-31 | UCMR5 Analytical Results: MCI SHIRLEY (MA2270001) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-10-31 to 2023-12-11 | UCMR5 Analytical Results: MCI SHIRLEY (MA2270001) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-10-31 to 2023-12-11 | UCMR5 Analytical Results: MCI SHIRLEY (MA2270001) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-08-21 to 2023-10-31 | UCMR5 Analytical Results: MCI SHIRLEY (MA2270001) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-08-21 to 2023-10-31 | UCMR5 Analytical Results: MCI SHIRLEY (MA2270001) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-08-21 to 2023-10-31 | UCMR5 Analytical Results: MCI SHIRLEY (MA2270001) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-08-21 to 2023-10-31 | UCMR5 Analytical Results: MCI SHIRLEY (MA2270001) |
| Perfluorobutanesulfonic acid (PFBS) | < 3 ng/L | 2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limit | Not detected above the reporting limit | 2023-08-21 to 2023-10-31 | UCMR5 Analytical Results: MCI SHIRLEY (MA2270001) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-08-21 to 2023-10-31 | UCMR5 Analytical Results: MCI SHIRLEY (MA2270001) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-08-21 to 2023-10-31 | UCMR5 Analytical Results: MCI SHIRLEY (MA2270001) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-08-21 to 2023-10-31 | UCMR5 Analytical Results: MCI SHIRLEY (MA2270001) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-08-21 to 2023-10-31 | UCMR5 Analytical Results: MCI SHIRLEY (MA2270001) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-08-21 to 2023-10-31 | UCMR5 Analytical Results: MCI SHIRLEY (MA2270001) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2023-08-21 to 2023-10-31 | UCMR5 Analytical Results: MCI SHIRLEY (MA2270001) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-08-21 to 2023-10-31 | UCMR5 Analytical Results: MCI SHIRLEY (MA2270001) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-08-21 to 2023-10-31 | UCMR5 Analytical Results: MCI SHIRLEY (MA2270001) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-08-21 to 2023-10-31 | UCMR5 Analytical Results: MCI SHIRLEY (MA2270001) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-08-21 to 2023-10-31 | UCMR5 Analytical Results: MCI SHIRLEY (MA2270001) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-08-21 to 2023-10-31 | UCMR5 Analytical Results: MCI SHIRLEY (MA2270001) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-10-31 to 2023-12-11 | UCMR5 Analytical Results: MCI SHIRLEY (MA2270001) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-10-31 to 2023-12-11 | UCMR5 Analytical Results: MCI SHIRLEY (MA2270001) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-08-21 to 2023-10-31 | UCMR5 Analytical Results: MCI SHIRLEY (MA2270001) |
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 (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.
Lab-certified results
ETR Laboratories
50+ substances, including lead, copper, arsenic, nitrate, hardness and coliform bacteria
Environmental Testing and Research Laboratories (ETR Labs), Leominster, MA · ISO/IEC 17025:2017, ANAB certificate AT-2638 · 2–4 business days after the lab receives it
What it can't tell you: It does not test PFAS, and not every result on the panel falls under the lab's accredited scope.
Get PurityMap updates about this water system.
Follow this water →MCI Shirley's phone number on EPA record is 5085415301. Its mailing address is ATTN: JEFFREY QUICK, 50 MAPLE STREET, MILFORD, MA 01757.
According to EPA's record, MCI Shirley uses groundwater from its own wells, and buys water from Devens Massdevelopment.
No health-based violations on EPA record since 2016. The record comes from EPA's SDWIS compliance database.
Lead was not detected at the 90th percentile of tap samples in MCI Shirley's latest lead and copper round, which ended in December 2025. The federal action level is 15 µg/L.
PurityMap has no verified website for MCI Shirley. Its phone number on EPA record is 5085415301. Its mailing address on EPA record is ATTN: JEFFREY QUICK, 50 MAPLE STREET, MILFORD, MA 01757. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.