Water monitoring across Miami Beach paints a mid-range picture within FL - solid compliance in some service zones, documented concerns in others. Most violations on record are concentrated in specific areas, and the overall grade has held in the middle tier without major shifts in recent monitoring cycles.

Data: EPA SDWIS

Water Quality Map: Miami Beach, FL

Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.

A B C D F

Overview

We track home safety data for 7 ZIP codes in Miami Beach, Florida (population ~105,205), covering 7 community water systems serving approximately 2,680,730 people region-wide. The EPA snapshots used for this build directly map water systems to 5 of 7 ZIP codes.

5 of 5 ZIP codes with a reported violation count in the available EPA record (100%) have recorded EPA violations. The available record reports no health-based violations for this measured scope.

Home Safety Score

Average Home Safety Score for Miami Beach: C (65/100)

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

Miami Beach water systems draw from: Groundwater.

Lead & Copper

• Average lead level (90th percentile): 0.0063 mg/L (EPA action level: 0.015 mg/L)
• 0 of 5 ZIP codes with known status exceed the EPA lead action level

Radon Risk

Dominant radon zone: Zone 2 (Moderate Risk)

• Zone 1 (High): 0 ZIP codes
• Zone 2 (Moderate): 7 ZIP codes
• Zone 3 (Low): 0 ZIP codes

The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.

Top Contaminants

Areas with Most Violations

All ZIP Codes in Miami Beach

• 33109 [C] - 20 violations
• 33119
• 33139 [C] - 20 violations
• 33140 [C] - 14 violations
• 33141 [C] - 16 violations
• 33154 [C] - 24 violations
• 33239

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.

Housing Age Profile

Two dates define the high-risk tiers of residential plumbing from a lead standpoint: 1970, before which lead pipes were commonly installed for service connections, and 1986, before which lead solder was standard in copper plumbing. A median build year of 1968 places Miami Beach's housing distribution well within that older risk zone. The bar chart above breaks down how much of the stock falls into each era - and the pre-1986 share alone represents more than half the residential inventory, making plumbing-era risk a defining characteristic of the local water safety picture.

1968

Median Year Built

67%

Pre-1986 (Lead Paint Risk)

22%

Pre-1970 (Lead Pipes Risk)

Pre-1970 (22%) 1970–1986 (45%) Post-1986 (33%)

Over half of homes in Miami Beach 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 Miami Beach

In Miami Beach, documented water and safety issues can be addressed without making a meaningful dent in home equity - the financial proportionality here is favorable, and the commitment fits within standard property planning frameworks.

Median Home Value

$741,400

Est. Remediation

$2,029

Remediation as % of home value 0.3%

Remediation costs in Miami Beach are relatively low compared to home values. The $1,086–$3,114 estimated range is a small fraction of median property value. Home values are 119% above the Florida average.

Miami Beach: Lead Risk & Vulnerable Populations

67%

Homes Built Before 1986

0.0063

mg/L Avg Lead (Limit: 0.015)

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.

Although utility-side compliance with federal Lead and Copper requirements remains the system reference, that compliance does not extend down into interior plumbing. With 67% of Miami Beach stock built before the solder ban and aggregate readings at or beyond the action mark, a household-level sample becomes the practical way to close that information gap.

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

Miami Beach: NFIP Claim Records and Water-Quality Context

3,885

Total FEMA Flood Claims

$30,068

Avg Reported Sum With Payment Data

100%

A/V Share of Claim-Record ZIPs

Historical NFIP data for Miami Beach contains 3,885 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $30,068. 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. The <strong>$2,029</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.