EPA data as of Oct 2026 · page updated 2026-10-29

Home hazard report for 06330 — Baltic, CT

ZIP 06330 is served by Sprague Water & Sewer Authority: no health-based violations since 2016, latest lead result 0 ppb, PFAS not tested. New London County is in EPA radon zone 1.

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Where ZIP 06330 is

Dashed: ZIP area · blue: utility service area · scroll or pinch to zoom
ZIP code areaZIP center Water utility service area PFOA/PFOS ≥ 4 ppt Lead > 15 ppb 5+ violations Superfund site (active) proposed cleaned up Circles: other water systems flagged nearby; size = people served. Tap any symbol for details.

Drinking water: Sprague Water & Sewer Authority

EPA IDCT1330021
People served1,058
Sourcegroundwater (wells)
Connections371

Health-based violations

No health-based violations reported since 2016.

Full record for Sprague Water & Sewer Authority →

Lead

Jan 20220 ppb
Jan 20192 ppb
Jan 20160 ppb
Jan 20152 ppb
Jan 20146 ppb
Jan 20132 ppb
Jan 20127 ppb
Jan 20110 ppb

90th-percentile lead per sampling round (90% of the homes sampled were at or below this level). Black line: EPA’s 15 ppb action level; under the Lead and Copper Rule Improvements the action level becomes 10 ppb from 2027.

PFAS (“forever chemicals”)

This system was not part of EPA’s 2023–2025 nationwide PFAS testing (UCMR 5).

Radon in New London County

EPA radon zone 1 — highest potential. Predicted average indoor radon above 4 pCi/L — EPA’s action level. Test your home.

Radon is a colorless, odorless radioactive gas from soil and rock, and the leading cause of lung cancer among non-smokers. EPA recommends fixing a home at 4 pCi/L or above and considering it from 2 pCi/L. A short-term test kit costs about $15–30. How radon zones work →

Superfund sites nearby

SiteStatusDistance
Yaworski Waste Lagoon
Canterbury, Connecticut · EPA ID CTD009774969
Active (final NPL)6.3 mi
Gallup's Quarry
Plainfield, Connecticut · EPA ID CTD108960972
Active (final NPL)8.2 mi

EPA Superfund National Priorities List (NPL): the country’s most serious known hazardous-waste sites, each with an EPA cleanup record (linked). Distance is measured from the ZIP center to the site’s reference point; being near a site does not by itself mean exposure — EPA site pages describe what was found and how it is being cleaned up.

What this is — and isn’t. These are records your water utility and state reported to the EPA, and the EPA’s radon map for your county. They describe the system and the area, not the water from your own tap or the air in your home. For that, read your utility’s annual Consumer Confidence Report and test: lead and radon tests are inexpensive.

Questions about 06330

Who supplies drinking water to ZIP 06330?

Sprague Water & Sewer Authority (EPA ID CT1330021), a groundwater (wells) system serving about 1,058 people.

Is there lead in Baltic, CT tap water?

The utility’s latest 90th-percentile lead result (Jan 2022) was 0 ppb; EPA’s action level is 15 ppb, falling to 10 ppb from 2027. Lead mostly comes from service lines and home plumbing, so the only way to know your tap is to test it.

Does Baltic, CT water have PFAS?

This system was not part of EPA’s 2023–2025 nationwide PFAS testing (UCMR 5 covers systems serving over 3,300 people and a sample of smaller ones).

Has the water system in 06330 had violations?

No health-based violations reported since 2016.

Are there Superfund sites near 06330?

The nearest active Superfund site is 6.3 miles away. Sites within 10 miles: Yaworski Waste Lagoon (6.3 mi, Active (final NPL)); Gallup's Quarry (8.2 mi, Active (final NPL)).

Is radon a problem in New London County?

New London County is in EPA radon zone 1 (highest potential). Predicted average indoor radon above 4 pCi/L — EPA’s action level. Test your home.