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  1. PurityMap
  2. Water Quality
  3. Connecticut
  4. CROMWELL FIRE DISTRICT WATER DEPARTMENTCT0330011
Change
Updated 2026-09-16
Water system record · CT0330011

Cromwell Fire District Water Department

Cromwell Fire District Water Department serves 14,316 people from groundwater. 31 results are on record. PFOS is above its federal limit (a 2024 limit that water systems have until at least 2029 to meet); everything else measured is within its reference or not detected.

Explore the findingsIs this my supplier?Follow
Purity ScoreHow the 76 is builtCT0330011 · 14,316 served
76/100 · GoodConfidence: moderate
above a federal limit
1
detected, within reference or no limit
1
not detected
29
  • PFAS (forever chemicals)43
  • Metals & lead100
  • Disinfection by-products—Not monitored
  • Track record (violations)100

Subject scores out of 100. 3 of 4 subjects measured; disinfection pending a source.

System-level record, not a test of your tap. How we score

Source
Groundwater
Serves 1 city area on record.
Population
14,316
as reported to EPA
Type
Community Water System
Connecticut
Cities
1
Cromwell Fire District
Records
31 results
latest 2023
FindingsAll resultsComplianceWhat you can doProductsRecordsFAQ
What stands out

One PFAS above the 2024 federal limit

The bar is drawn in blocks of the 4.0 ng/L federal MCL (2024), so the length shows how far above it the result sits.

PFOS

Perfluorooctanesulfonic acid

1.1× the limit

4.6ng/L

Each block = 4.0 ng/L federal MCL (2024)

EPA UCMR 5 · sampled 2023Evidence

Coverage by group

31 results on record
  • PFAS (forever chemicals)
    1 above · 1 detected · 27 not detected
  • Metals & lead
    1 not detected
  • Disinfection by-products
    Not monitored
  • Other
    1 not detected
  • Above a limit or reference
  • Detected
  • Not detected
  • Not monitored
Every detected result

2 detected results, by distance from their limit

  • PFOS
    Perfluorooctanesulfonic acid (PFOS)EPA UCMR 5 · 2023
    4.0 ng/L federal MCL (2024)
    4.6ng/L
    Above limit
  • PFHxS
    Perfluorohexanesulfonic acid (PFHxS)EPA UCMR 5 · 2023
    10 ng/L federal MCL (2024)
    8.7ng/L
    Within reference
29 other contaminants tested, none detected
  • 11Cl-PF3OUdS
  • 4:2 FTS
  • 6:2 FTS
  • 8:2 FTS
  • 9Cl-PF3ONS
  • ADONA
  • HFPO-DA (GenX)
  • NEtFOSAA
  • NFDHA
  • NMeFOSAA
  • PFBA
  • PFBS
  • PFDA
  • PFDoA
  • PFEESA
  • PFHpA
  • PFHpS
  • PFHxA
  • PFMBA
  • PFMPA
  • PFNA
  • PFOA
  • PFPeA
  • PFPeS
  • PFTA
  • PFTrDA
  • PFUnA
  • Lithium
  • Lead (90th percentile)

Compliance and coverage

Lead service lines

4,618service lines inventoried

  • Lead0
  • Galvanized, to replace0
  • Material unknown2,002
  • Not lead2,616

From the utility's inventory reported to EPA (2026Q2). Look up your address with the utility.

Compliance

0health-based violations in the last 10 years

From EPA SDWIS. A clean violation history means no enforcement action was recorded; it does not cover contaminants without a limit.

Not in this recordDisinfection by-products weren't monitored in this dataset

No result is not a pass. Your utility's annual water quality report may list them, and a certified lab test covers your own tap.

A federal limit (an MCL or action level) is an enforceable legal cap; a health goal is often stricter. Meeting the limit is a compliance fact, not a health clearance, and PurityMap publishes no overall compliance verdict.

What you can do

Test first, then treat what was found

  1. 01 · TestTest your own tap

    A tap test can confirm levels at your home before you choose treatment.

    Certified lab
    How to test your tap →
  2. 02 · Treat PFASReverse osmosis, or carbon certified for PFAS

    PFOS 4.6 ng/L, above the 4 ng/L limit (+1 more PFAS detected)

    NSF/ANSI 58 or 53, with PFOS/PFHxS named on the listing
    Treatment for PFAS →

Understand water treatment technologies →

Understand:PFAS in Cromwell Fire District

Commercial

Certified for a concern found here

Each card names which of this system’s findings its current certification covers, and which it doesn’t.

As an Amazon Associate, PurityMap earns from qualifying purchases. A product appears here only when a current certification record covers at least one identified concern; every concern stays listed. The retail offer is looked up afterwards and never changes which products appear or their order. Affiliate disclosure.

Under-Sink Filter

Aquasana Claryum 2-Stage Under-Sink Filter (AQ-5200)

  • ✓PFOS: eligible, evidence match
  • –Not established: PFHxS
Not suitable for (5)
  • Treating every tap in the home
  • A whole-home hard-water or scale problem
  • All PFAS: its evidence covers only the compounds it names
  • Anyone who can't plumb, drill or hire an installer
  • Renters who can't modify plumbing
See the evidenceCheck price on Amazon
Under-Sink Filter

Aquasana Claryum 3-Stage Max Flow Under-Sink Filter (AQ-6300M)

  • ✓PFOS: eligible, evidence match
  • –Not established: PFHxS
Not suitable for (5)
  • Treating every tap in the home
  • A whole-home hard-water or scale problem
  • All PFAS: its evidence covers only the compounds it names
  • Anyone who can't plumb, drill or hire an installer
  • Renters who can't modify plumbing
See the evidenceCheck price on Amazon
See all 9 products certified for a concern in this system →
Countertop System

Aquasana Clean Water Machine Countertop Filter (AQ-CWM2)

  • ✓PFOS: eligible, evidence match
  • –Not established: PFHxS
Not suitable for (3)
  • Treating every tap in the home
  • A whole-home hard-water or scale problem
  • All PFAS: its evidence covers only the compounds it names
See the evidenceCheck price on Amazon
Countertop System

Patriot Pure Ultimate Water Filtration System

  • ✓PFOS: eligible, evidence match
  • –Not established: PFHxS
Not suitable for (3)
  • Treating every tap in the home
  • A whole-home hard-water or scale problem
  • All PFAS: its evidence covers only the compounds it names
See the evidenceCheck price on Amazon
Countertop System

AquaTru Carafe Countertop Reverse-Osmosis Purifier (AT100)

  • ✓PFOS: eligible, evidence match
  • –Not established: PFHxS
Not suitable for (3)
  • Treating every tap in the home
  • A whole-home hard-water or scale problem
  • All PFAS: its evidence covers only the compounds it names
See the evidenceCheck price on Amazon
Countertop System

AquaTru Classic Countertop Reverse-Osmosis Purifier (AT2000)

  • ✓PFOS: eligible, evidence match
  • –Not established: PFHxS
Not suitable for (3)
  • Treating every tap in the home
  • A whole-home hard-water or scale problem
  • All PFAS: its evidence covers only the compounds it names
See the evidenceCheck price on Amazon
Under-Sink Filter

Waterdrop G3P600 Tankless Reverse-Osmosis System

  • ✓PFOS: eligible, evidence match
  • –Not established: PFHxS
Not suitable for (5)
  • Treating every tap in the home
  • A whole-home hard-water or scale problem
  • All PFAS: its evidence covers only the compounds it names
  • Anyone who can't plumb, drill or hire an installer
  • Renters who can't modify plumbing
See the evidenceCheck price on Amazon
Under-Sink Filter

Waterdrop G3P800 Tankless Reverse-Osmosis System

  • ✓PFOS: eligible, evidence match
  • –Not established: PFHxS
Not suitable for (5)
  • Treating every tap in the home
  • A whole-home hard-water or scale problem
  • All PFAS: its evidence covers only the compounds it names
  • Anyone who can't plumb, drill or hire an installer
  • Renters who can't modify plumbing
See the evidenceCheck price on Amazon
Refrigerator Filter

Whirlpool Filter 3 Refrigerator Water Filter (WHR3RXD1)

  • ✓PFOS: eligible, evidence match
  • –Not established: PFHxS
Not suitable for (3)
  • Treating every tap in the home
  • A whole-home hard-water or scale problem
  • All PFAS: its evidence covers only the compounds it names
See the evidenceCheck price on Amazon
Questions

Frequently asked questions

Who does CROMWELL FIRE DISTRICT WATER DEPARTMENT serve?

CROMWELL FIRE DISTRICT WATER DEPARTMENT (PWS ID CT0330011) is a public water system serving 14,316 people in Cromwell Fire District, Connecticut.

Where does CROMWELL FIRE DISTRICT WATER DEPARTMENT get its water?

CROMWELL FIRE DISTRICT WATER DEPARTMENT is on record as drawing from groundwater. The source shapes which contaminants matter most for this system.

What does CROMWELL FIRE DISTRICT WATER DEPARTMENT's monitoring record show?

PurityMap's record for CROMWELL FIRE DISTRICT WATER DEPARTMENT holds 31 findings: 1 above a reference, 1 detected within the reference and 29 not detected, from 31 evidence records. Every finding links to its source; a substance that was never monitored is shown as pending, not as a pass.

Is CROMWELL FIRE DISTRICT WATER DEPARTMENT's water safe to drink?

PurityMap does not issue a safety verdict. It publishes CROMWELL FIRE DISTRICT WATER DEPARTMENT's measured results against each contaminant's benchmark so you can read them in context. Safety depends on the specific finding, your plumbing, and how the water reaches your tap.

How current is this CROMWELL FIRE DISTRICT WATER DEPARTMENT data?

The latest published record for CROMWELL FIRE DISTRICT WATER DEPARTMENT is dated 2026-09-16. Utilities report on regulatory cycles, so results reflect the monitoring period rather than a live reading.

Does this assessment represent my home's tap water?

No. It is assessed at the water-system level from CROMWELL FIRE DISTRICT WATER DEPARTMENT's own monitoring. It does not cover the service line to your building or the plumbing inside it, which can add lead and other metals after the water leaves the system. A tap test is the way to know what reaches your glass.

What contaminants were detected in CROMWELL FIRE DISTRICT WATER DEPARTMENT?

Perfluorooctanesulfonic acid (PFOS) and Perfluorohexanesulfonic acid (PFHxS) were detected in this record. Each finding shows its measured value, its reference and its source on this page.

What should I do if I'm concerned about PFAS in CROMWELL FIRE DISTRICT WATER DEPARTMENT's water?

Start with what the record shows: the PFAS findings above list each measured value against its reference. This record cannot show your home's plumbing, so a tap test tells you what reaches your glass. If you decide to treat your water, look for a filter whose certification covers the specific PFAS compounds in your record; the section "Certified for a concern found here" lists only products with a current certification record for these concerns.

Follow this water

Follow Cromwell Fire District Water Department

One email when a new sampling round is published, a result moves above or below its reference, or the system's score changes.

Double opt-in: we email a confirmation link. Unsubscribe anytime. No spam.

Cities served by this system
  • Cromwell Fire District

As listed for this system in EPA's records. Your water bill names your supplier.

Sources and dataAll 31 records and their sourcesEPA UCMR 5 · EPA SDWIS (Lead & Copper Rule)+
SubstanceResultReferenceSampledStatusEvidence
11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)< 5 ng/LNo federal or state limit; shown for transparency2023-04-13 to 2023-10-24Not detected—
1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS)< 3 ng/LNo federal or state limit; shown for transparency2023-04-13 to 2023-10-24Not detected—
1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS)< 5 ng/LNo federal or state limit; shown for transparency2023-04-13 to 2023-10-24Not detected—
1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS)< 5 ng/LNo federal or state limit; shown for transparency2023-04-13 to 2023-10-24Not detected—
9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS)< 2 ng/LNo federal or state limit; shown for transparency2023-04-13 to 2023-10-24Not detected—
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)< 3 ng/LNo federal or state limit; shown for transparency2023-04-13 to 2023-10-24Not detected—
Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals)< 5 ng/L10 ng/L federal MCL (2024)2023-04-13 to 2023-10-24Not detected—
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)< 5 ng/LNo federal or state limit; shown for transparency2023-04-13 to 2023-10-24Not detected—
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)< 20 ng/LNo federal or state limit; shown for transparency2023-04-13 to 2023-10-24Not detected—
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)< 6 ng/LNo federal or state limit; shown for transparency2023-04-13 to 2023-10-24Not detected—
Perfluorobutanoic acid (PFBA)< 5 ng/LNo federal or state limit; shown for transparency2023-04-13 to 2023-10-24Not detected—
Perfluorobutanesulfonic acid (PFBS)< 3 ng/L2,000 ng/L EPA health advisory (screening, not a legal limit)2023-04-13 to 2023-10-24Not detected—
Perfluorodecanoic acid (PFDA)< 3 ng/LNo federal or state limit; shown for transparency2023-04-13 to 2023-10-24Not detected—
Perfluorododecanoic acid (PFDoA)< 3 ng/LNo federal or state limit; shown for transparency2023-04-13 to 2023-10-24Not detected—
Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA)< 3 ng/LNo federal or state limit; shown for transparency2023-04-13 to 2023-10-24Not detected—
Perfluoroheptanoic acid (PFHpA)< 3 ng/LNo federal or state limit; shown for transparency2023-04-13 to 2023-10-24Not detected—
Perfluoroheptanesulfonic acid (PFHpS)< 3 ng/LNo federal or state limit; shown for transparency2023-04-13 to 2023-10-24Not detected—
Perfluorohexanoic acid (PFHxA)< 3 ng/L400,000 ng/L Michigan EGLE state MCL (strictest US state)2023-04-13 to 2023-10-24Not detected—
Perfluorohexanesulfonic acid (PFHxS)8.7 ng/L10 ng/L federal MCL (2024)2023-04-13 to 2023-10-24Below limitView evidence
Perfluoro-4-methoxybutanoic acid (PFMBA)< 3 ng/LNo federal or state limit; shown for transparency2023-04-13 to 2023-10-24Not detected—
Perfluoro-3-methoxypropanoic acid (PFMPA)< 4 ng/LNo federal or state limit; shown for transparency2023-04-13 to 2023-10-24Not detected—
Perfluorononanoic acid (PFNA)< 4 ng/L10 ng/L federal MCL (2024)2023-04-13 to 2023-10-24Not detected—
Perfluorooctanoic acid (PFOA)< 4 ng/L4.0 ng/L federal MCL (2024)2023-04-13 to 2023-10-24Not detectedView evidence
Perfluorooctanesulfonic acid (PFOS)4.6 ng/L4.0 ng/L federal MCL (2024)2023-04-13 to 2023-10-24Above guidelineView evidence
Perfluoropentanoic acid (PFPeA)< 3 ng/LNo federal or state limit; shown for transparency2023-04-13 to 2023-10-24Not detected—
Perfluoropentanesulfonic acid (PFPeS)< 4 ng/LNo federal or state limit; shown for transparency2023-04-13 to 2023-10-24Not detected—
Perfluorotetradecanoic acid (PFTA)< 8 ng/LNo federal or state limit; shown for transparency2023-04-13 to 2023-10-24Not detected—
Perfluorotridecanoic acid (PFTrDA)< 7 ng/LNo federal or state limit; shown for transparency2023-04-13 to 2023-10-24Not detected—
Perfluoroundecanoic acid (PFUnA)< 2 ng/LNo federal or state limit; shown for transparency2023-04-13 to 2023-10-24Not detected—
Lithium< 9 µg/L10 µg/L EPA health reference level (screening, not a legal limit)2023-04-13 to 2023-10-24Not detected—
Lead (90th percentile)Non-Detect (ND)15 µg/L federal action level2022–2024 monitoring periodNot detectedView evidence
  • UCMR5 Analytical Results

    UCMR5 Analytical Results: CROMWELL FIRE DISTRICT WATER DEPARTMENT (CT0330011)

    US EPA

    Published
    2026-01-15
    Newest sample
    2023-10-24
    Findings here
    30

    View source ↗Source record

  • State SDWIS Compliance Record

    Lead & Copper Rule 90th-percentile: CROMWELL FIRE DISTRICT WATER DEPARTMENT (CT0330011)

    US EPA SDWIS

    Published
    2026-07-09
    Newest sample
    2024
    Findings here
    1

    View source ↗Source record

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