Middle Island, NY Home Safety: Home Safety 83/100
1 ZIP code · 1 water system · Updated
ZipCheckup grade for Middle Island: B.
This ZIP looks solid, with a few items worth a quick check.
Unlike many cities its size in NY, Middle Island keeps health-based violation rates low - systems here score at or above the state average for tap water safety, with no systemic concerns flagged in the current data set.
How Middle Island Compares
Data: EPA SDWIS
Key Facts for Middle Island Residents
- Average lead level: 0.0013 mg/L.
- Homes built before 1986: 59% - older plumbing may contain lead solder.
- Estimated remediation: $3,100 per household.
- CDC health risk index: 11.13.
Middle Island's Water Providers
The structure of water supply in Middle Island, NY is straightforward: one utility provides the bulk of residential service among 1 tracked system, concentrating rate-setting and infrastructure decisions under a single organization.
- B
Overview
We track home safety data for 1 ZIP code in Middle Island, New York (population ~13,383), covering 1 community water system serving approximately 1,100,000 people region-wide. 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 Middle Island: B (83/100)
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
Middle Island water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0013 mg/L (EPA action level: 0.015 mg/L)
- 0 of 1 ZIP code with known status exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 3 (Low Risk)
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 11953 | B | Suffolk County Water Authority | 1,100,000 |
All ZIP Codes in Middle Island
- 11953 [B]
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.
Middle Island Community Health Snapshot
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Middle Island Infrastructure Age
With 59% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
When a city's housing median build year is 1970, as in Middle Island, the implication for water quality research is straightforward: municipal-level data captures what leaves the treatment plant, but household plumbing from before 1986 determines what actually arrives at the tap. In cities where older housing predominates, that gap between system-level and household-level data is widest.
Over half of homes in Middle Island were built before 1986, when lead solder was banned. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.
Source: U.S. Census Bureau ACS B25034.
How Remediation Costs Compare in Middle Island
Across Middle Island, the equity share taken up by estimated remediation is small - a favorable ratio for most property owners.
Remediation costs in Middle Island are relatively low compared to home values. The $2,200–$4,800 estimated range is a small fraction of median property value. Home values are 1% below the New York average.
Middle Island: Lead Risk & Vulnerable Populations
Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
Even where utility-side monitoring meets Lead and Copper Rule requirements, the 59% pre-rule share in Middle Island keeps interior-plumbing variation as a household-level question that aggregate data cannot resolve.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Middle Island: NFIP Claim Records and Water-Quality Context
Historical NFIP data for Middle Island contains 7 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $153,540. Among ZIP codes with claim records, 0% 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. The <strong>$3,100</strong> remediation estimate shown here excludes flood insurance and is not derived from NFIP claim count.
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.
Deep Dive Reports
Detailed analysis for Middle Island, NY