Water system

The Frederick Gunn School, Inc.

B
Connecticut EPA ID CT1500051 300 people Groundwater

What this means for you

Is it safe to drink right now?
Based on the latest EPA data, The Frederick Gunn School, Inc. has no unresolved health-based violations from the past year. Water that meets federal standards is generally considered safe to drink for most healthy people.
Should I use a filter?
Optional. Nothing in this data strongly calls for one. Many people still filter for chlorine taste and odor.
What kind of filter?
For taste and odor (chlorine/chloramine), an NSF/ANSI 42 pitcher or faucet filter is enough. See matched standards and product picks.

This is general information from public EPA data, not medical advice. Lead often comes from a home’s own pipes, so only a test of your tap can tell your exposure. If you are pregnant, caring for an infant, or have a weakened immune system, ask your doctor or health department.

Summary: No health-based violations in the last 5 years; 25 monitoring/reporting violations; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).
EPA data snapshot 2026Q3. Grade is TapWaterZip's own score — see methods.

PFAS (“forever chemicals”), EPA UCMR 5

No UCMR 5 results on file (mostly smaller systems weren’t required to test).

Lead and copper

Lead 90th percentile6.5 ppb2025-12-31
Current action level15 ppbLCRI lowers to 10 ppb on Nov 1, 2027

Violations (last 5 years)

BeganTypeContaminant / ruleStatus
2023-08-10Reporting problemRevised Total Coliform RuleResolved
2023-07-01Missed or late testing/reportingChlorineResolved
2023-01-01Missed or late testing/reporting1,2,4-TrichlorobenzeneResolved
2023-01-01Missed or late testing/reporting1,2-DichloroethaneResolved
2023-01-01Missed or late testing/reporting1,1-DichloroethyleneResolved
2023-01-01Missed or late testing/reportingtrans-1,2-DichloroethyleneResolved
2023-01-01Missed or late testing/reportingCHLOROBENZENEResolved
2023-01-01Missed or late testing/reportingDICHLOROMETHANEResolved
2023-01-01Missed or late testing/reportingBenzeneResolved
2023-01-01Missed or late testing/reportingCarbon tetrachlorideResolved
2023-01-01Missed or late testing/reporting1,2-DichloropropaneResolved
2023-01-01Missed or late testing/reportingp-DichlorobenzeneResolved
2023-01-01Missed or late testing/reportingEthylbenzeneResolved
2023-01-01Missed or late testing/reporting1,1,1-TrichloroethaneResolved
2023-01-01Missed or late testing/reportingo-DichlorobenzeneResolved
2023-01-01Missed or late testing/reportingTrichloroethyleneResolved
2023-01-01Missed or late testing/reportingVinyl chlorideResolved
2023-01-01Missed or late testing/reporting1,1,2-TrichloroethaneResolved
2023-01-01Missed or late testing/reportingTetrachloroethyleneResolved
2023-01-01Missed or late testing/reportingTolueneResolved
2023-01-01Missed or late testing/reportingStyreneResolved
2023-01-01Missed or late testing/reportingcis-1,2-DichloroethyleneResolved
2022-09-29Missed or late testing/reportingLead and Copper RuleResolved
2022-08-10Other paperwork/notice violationConsumer Confidence RuleResolved
2022-07-01Other paperwork/notice violationConsumer Confidence RuleResolved

Filters matched to this water

FILTER PICKS

Look for filters certified (NSF, IAPMO or WQA) to these standards for the specific contaminant. Buttons open the maker’s page or an Amazon search; use “Check NSF listing” to verify a model’s claims. No affiliate links yet — grades are never sold.

Lead

NSF/ANSI 53NSF/ANSI 58 (RO)
Aquasana Claryum 3-Stage Under Sink ~$280–350
Under-sink carbon filter; check its listing for lead and PFOA/PFOS claims.
View on Aquasana →
Check NSF listing · Not an affiliate link · disclosure
Waterdrop Undersink WD-UA ~$80–120
Undersink carbon block; verify the specific contaminant claims.
Search on Amazon →
Check NSF listing · Not an affiliate link · disclosure
Waterdrop G3 / G3P600 RO ~$300–500
Tankless RO; RO broadly reduces nitrate, fluoride, arsenic and many PFAS — confirm the certificate lists yours.
Search on Amazon →
Check NSF listing · Not an affiliate link · disclosure

Chlorine/chloramine taste

NSF/ANSI 42
Aquasana Clean Water Pitcher ~$35
Pitcher for chlorine taste/odor; check the NSF/ANSI 42 listing for the exact model.
Search on Amazon →
Check NSF listing · Not an affiliate link · disclosure
Brita Elite Filter ~$20–40
Common faucet/pitcher option; confirm the 42 claim on the box.
View on Brita →
Check NSF listing · Not an affiliate link · disclosure

Annual water quality report

Utilities must publish a Consumer Confidence Report every year by July 1. Find it on the utility’s website or ask them directly; EPA explains how.

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