CITY REPORT CT

Deep River, CT: High Radon Potential Area - Home Safety 67/100

1 ZIP code · 1 water system · Updated

ZipCheckup grade for Deep River: C.

A mixed picture - some signals here are worth your attention.

Within Deep River, the records summarized for CT produce a C grade - a middle reading that calls for checking the specific system at your address.

How Deep River Compares

Deep River67/100
Connecticut avg63/100
National avg73/100

Data: EPA SDWIS

1
ZIP Codes
1
Water Systems
0
ZIPs Linked to Systems with Violations
C · 67
Avg Safety Score
Zone 1
County Radon Potential (High)
$349K
Median Home Value

Who Supplies Your Water in Deep River

Federal drinking water data connect ZIP codes in Deep River, CT to a count of 1 system, and the list on this page shows one of them. A listing reflects that link, not proof of which system serves a given street.

Overview

We track home safety data for 1 ZIP code in Deep River, Connecticut, covering 1 community water system serving approximately 4,432 people. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.

The available EPA record reports 0 violations for 1 ZIP code with a reported violation count.

Home Safety Score

Average Home Safety Score for Deep River: C (67/100)

Model 4.0.0 uses four measured components across three equally weighted domains. If a required domain is unavailable, no score is published:

Factor What It Measures
Water Quality EPA violations and compliance history
PFAS MCL Screen UCMR 5 testing against the covered federal MCLs
Radon Risk EPA radon zone classification
Annual AQI EPA AirData county-year median with at least 90 observed days

Water Sources

Deep River water systems draw from: Surface water.

Lead & Copper

  • Average of reported 90th-percentile lead results: reported as 0 mg/L (a reported 0 is not proof of no lead; check the source record for its reporting limit) (EPA action level: 0.015 mg/L)
  • 0 of 1 ZIP code with known status exceed the EPA lead action level

Radon Risk

1 of 1 ZIP records with known zones is in EPA Radon Zone 1.

The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.

Areas with No Violations

ZIP Code Safety Score System Population
06417 C Ctwc - Shoreline Region-chester System 5,030

All ZIP Codes in Deep River

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

Housing & Infrastructure in Deep River

1978
Median Build Year
78%
Built Before 1986
49%
Built Before 1970
Copper
Likely Pipe Material

With 78% of homes built before 1986, lead solder in plumbing is a potential concern. Federal law banned lead solder in drinking-water plumbing in 1986, but many older homes retain original plumbing.

Source: U.S. Census Bureau American Community Survey (ACS).

Housing Age Profile

Some homes in Deep River predate the 1986 federal restrictions on lead in new pipe and solder, so a tap test is a reasonable step for older homes; median build year: 1978.

1978
Median Year Built
78%
Pre-1986 (lead solder era; lead paint banned 1978)
49%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (49%) 1970–1986 (29%) Post-1986 (22%)

Over half of homes in Deep River were built before 1986, when federal law began restricting lead solder in drinking-water plumbing. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.

Source: U.S. Census Bureau ACS B25034.

Lead Exposure Risk for Children in Deep River

78%
Homes Built Before 1986

Why children are most at risk: The CDC states that no safe blood lead level in children has been identified. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

If you have young children or are pregnant, consider testing your home's water - especially if your home was built before 1986.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

Historical NFIP Claim Context in Deep River

23
Total FEMA Flood Claims
$9,860
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Deep River contains 23 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $9,860. Among ZIP codes with claim records, 100% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.

How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure.

Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.

Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.

What You Can Do in Deep River

  1. Test your water at home. City-level data shows averages - your tap may differ. Check the certification, price and turnaround time of any water test kit or lab service.
  2. Install a certified water filter. Choose a pitcher or under-sink filter certified to reduce the specific contaminants of concern.
  3. Check your home's plumbing. With 78% of homes built before 1986, lead solder is a real possibility.

Frequently Asked Questions

What does the Home Safety Score mean for Deep River, CT?
Deep River has an average Home Safety Score of 67/100 (Grade C) under ZipCheckup model 4.0.0, an area-level model that draws on EPA water compliance records, PFAS screening, EPA radon zones, and annual EPA air quality data; see the methodology page for how inputs and coverage are handled. The available EPA record reports no violations for ZIP codes with reported counts. Check individual ZIP code reports for component details.
How does Deep River compare to Connecticut average?
Deep River has an average Home Safety Score of 67/100, which is at or above the Connecticut state average of 63/100 for the same model series.
How many water systems serve Deep River?
Our records map 1 water system to 1 ZIP code in Deep River. The related population figure in our data is approximately 4,432 people; it is not a count of people served citywide.
Home → Cities → Connecticut → Deep River, CT

How to cite this page

APA ZipCheckup. (2026). Deep River, CT: High Radon Potential Area - Home Safety 67/100. https://zipcheckup.com/cities/ct/deep-river/
BibTeX
@misc{zipcheckup-cities-ct-deep-river,
  author = {{ZipCheckup}},
  title  = {{Deep River, CT: High Radon Potential Area - Home Safety 67/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/ct/deep-river/}
}

Page version: October 2026.

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