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Water Quality in Montville, CT 06353

By Alexander Snyder, Founder & Water Quality Data LeadLast reviewed July 2026

The water serving 06353 in Montville has 6 detected contaminants — well below the state average. Fewer detections doesn't necessarily mean safer water; even a single contaminant above health guidelines can pose risks, particularly for infants and immunocompromised individuals. A personalized report shows exactly where your household stands.

Is Montville, CT tap water safe to drink?

Whether Montville tap water is safe depends on your household. 6 contaminants have been detected in ZIP 06353. Federal legal limits and stricter health-based guidelines are not the same thing, and some contaminants matter more for vulnerable groups like infants, pregnancy, and older adults. Enter your ZIP above for a personalized risk assessment.

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See how 6 contaminants affect your specific household members — babies, children, pregnant women, elderly, dogs, and cats.

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Key Facts About Montville Water

Contaminants Detected

6

substances found in local water testing

Personalized For

11

household member types including pets

What Montville Residents Should Know

Montville's relatively low detection count of 6 is a positive sign, but it's worth checking the specifics. Contaminants like PFAS (forever chemicals) have extremely low health guidelines — parts per trillion — and even one substance above its health guideline can be meaningful. Well water users should also consider geology-based risks for arsenic and radon that may not appear in public system testing.

Contaminants Detected in Montville, CT 06353 Water

Detected in public water testing for ZIP 06353, ranked by how often samples were above the EPA limit. Enforceable health limits are shown in red; secondary (aesthetic) standards like manganese are advisory, not legal limits.

ContaminantDetected inSamplesExceeds EPA limitEPA limit
CopperHAS_SAFE_LEVEL100%303.3%1.3 mg/L
DEHP (Phthalate)OTHER100%1No0.006 mg/L
LeadNO_SAFE_LEVEL100%15No0.015 mg/L
AsbestosOTHER100%1No7 MFL
BariumOTHER100%5No2 mg/L
CadmiumOTHER100%1No0.005 mg/L
NitrateHAS_SAFE_LEVEL100%17No10 mg/L as N
Nitrate-NitriteHAS_SAFE_LEVEL100%8No10 mg/L as N

Source: EPA SDWIS / UCMR public water testing. Detection and exceedance rates reflect samples in this area; enter your ZIP above for a report personalized to your household. Most recent sample in this area: 2021.

Reading this inside ChatGPT or Claude?

This page can tell you the general science, but not what is actually in your Montville tap water — that depends on your exact address. You can get your specific answer two ways:

  • Inside the chat: ask your assistant to “check my tap water with CheckYourTap”. Our connector returns your ZIP code’s measured contaminant levels — including the derived dog and cat safe levels — and, only if you ask it to, can email you the report or arrange a specialist callback.
  • On the web: open CheckYourTap.com and enter your ZIP code for a free 30-second report.

Want to know exactly what’s in your Montville water?

6 contaminants have been detected in ZIP 06353. Schedule to get your water tested with a Valiant water specialist — they’ll review your results and arrange testing for your home.

Have a dog or cat in Montville?

5 of the contaminants detected in 06353 have pet-specific concerns — dogs and cats drink far more water per pound of body weight than people, and some are more sensitive. See what they mean for your pet:

Environmental Sites Near Montville, CT 06353

Documented sites in or near this ZIP from EPA and CT DEEP records. These are most relevant for private-well owners as potential groundwater concerns — public water is treated and tested separately. Their presence near a ZIP does not by itself mean your drinking water is affected, but it’s a reason for well owners to test.

4
PFAS sources
3
Open CT DEEP cleanup/remediation cases
13
Leaking underground storage tanks
22
Spills that reached water
1
Toxic-release (TRI) facilities
10
Permitted (NPDES) dischargers

Compiled from EPA (SEMS/TRI/ECHO) and CT DEEP records; many are undated historical site inventories. Most recent dated event in this area: 2025-12-31.

Who in Montville Is Most Affected

Some contaminants matter more for certain people, because the safe levels for them are stricter than for a healthy adult. Based on the contaminants of concern detected in ZIP 06353 — those found above a limit, or with no safe level (some may be within legal limits but still matter here):

  • For infants: Copper and Lead.

    Copper infants are more sensitive to copper's effects at a given level; Lead harms developing brains — there is no safe level for children, and it crosses the placenta.

  • For pregnancy: Lead.

    Lead harms developing brains — there is no safe level for children, and it crosses the placenta.

  • For young children: Lead.

    Lead harms developing brains — there is no safe level for children, and it crosses the placenta.

Tell us who lives in your home above for a report personalized to the people in it.

Frequently Asked Questions

Is the tap water safe to drink in Montville, CT?
Whether Montville tap water is safe depends on your household. 6 contaminants have been detected in ZIP 06353. Federal legal limits and stricter health-based guidelines are not the same thing, and some contaminants matter more for vulnerable groups like infants, pregnancy, and older adults. Enter your ZIP above for a personalized risk assessment.
What contaminants are in 06353 water?
6 contaminants have been detected in the water serving ZIP 06353. The ones most often above EPA limits or standards are Copper. Get a free personalized report to see which affect your household.
Is Montville water safe for infants, pregnancy, and children?
Montville tap water may meet federal legal limits, but some detected contaminants matter more for certain family members because their safe levels are stricter. For infants, the notable detected contaminants are Copper and Lead. For pregnancy, the notable detected contaminants are Lead. For young children, the notable detected contaminants are Lead. Enter your household above for a report personalized to your family.
Is Montville, CT tap water safe for dogs and cats?
5 of the contaminants detected in Montville (ZIP 06353) have pet-specific concerns (including Copper, Lead, Cadmium). Dogs and cats drink far more water per pound of body weight than people, and some contaminants are more toxic to them — for cats, permethrin has no safe level, and lead has none for either species. See what each detected contaminant means for your dog or cat, or enter your ZIP for a personalized pet report.
Is CheckYourTap free?
Yes, CheckYourTap is completely free. Enter your ZIP code and tell us who lives in your home to get a personalized water quality report with health risk assessments for 120+ contaminants.
Does Montville have well water data?
Yes, CheckYourTap covers both city water (public water systems) and private well water in Montville and throughout Connecticut. Well water reports use USGS groundwater data and include geology-based risk factors for arsenic, uranium, and radon.

Nearby Areas

Related Reading

View all Connecticut water quality reports

About This Report

Water quality data for Montville, CT 06353 is compiled from public records filed with the U.S. Environmental Protection Agency (EPA SDWIS), the U.S. Geological Survey (USGS NWIS), and the Connecticut Department of Public Health. Health guidelines reference the strictest available standards from the EWG, California OEHHA, and WHO. Risk assessments are personalized for 11 household member types. CheckYourTap is a service of Valiant Energy Solutions, a Connecticut company established in 1930.

This report is general information, not medical advice or a substitute for certified laboratory testing. Talk to your pediatrician or physician about specific health concerns.

By Alexander Snyder, Founder & Water Quality Data Lead. Last updated July 2026