Miami-Dade County, Florida
EPA treatment records (state-reported) list chloramines for City of North Miami Beach (NMB Water). EPA record
Miami-Dade Water & Sewer Department's 2025 water quality report says it uses chloramine. 2025 water quality report
Miami Gardens has 2 scored ZIP codes served mainly by 2 water utilities. Water Scores range from 50 to 57, with a median of 54. The contaminant most often above a published health guideline is Arsenic, in 2 of 2 utilities (EPA SDWA, EPA UCMR and Florida DEP data, 2020-2022). Scored against health guidelines that are stricter than legal limits, using public utility data. Not a test of your tap.
| Utility | ZIP codes | People served | Water Score | Above guideline | Buys water from |
|---|---|---|---|---|---|
| City of North Miami Beach (NMB Water) | 1 | 180,000 | 57 Weak | 4 of 25 | No purchases recorded |
| Miami-Dade Water & Sewer Department | 1 | 2,377,460 | 50 Weak | 5 of 36 | No purchases recorded |
Counted once per utility. Source: EPA SDWA, EPA UCMR and Florida DEP data, 2018-2024.
| Contaminant | Utilities above guideline | ZIP codes | Highest level | Years |
|---|---|---|---|---|
| Arsenic | 2 of 2 | 2 | 425 times its guideline | 2020-2022 |
| Bromodichloromethane | 2 of 2 | 2 | 143 times its guideline | 2020-2022 |
| Dibromochloromethane | 2 of 2 | 2 | 48 times its guideline | 2020-2022 |
| Chloroform | 2 of 2 | 2 | 45 times its guideline | 2020-2022 |
| Bromoform | 1 of 2 | 1 | 1.1 times its guideline | 2020-2022 |
24,689 housing units across 2 ZIP codes with data: 78.4% single-family homes, 13.6% in buildings of five or more units, 69.2% owner-occupied. Source: Census ACS 5-year estimates, ACS 2024 5-year.
A legal limit is an enforceable standard, set by the EPA under the Safe Drinking Water Act. Limits weigh health research together with the cost and feasibility of treatment. A health guideline is published by public-health sources and based on health research alone. A utility can meet every legal limit and still be above a published health guideline.
Approximate service area from EPA's Community Water System Service Area Boundaries; some boundaries are modeled estimates. Your water bill names your utility.
Solid: EPA has this type of record for the system. Grey: it does not.
2 utilities are the main supplier for at least one scored ZIP code in Miami Gardens. The largest by ZIP codes served: City of North Miami Beach (NMB Water) (1 ZIP code) and Miami-Dade Water & Sewer Department (1 ZIP code). Source: EPA Water System Boundaries (CWS service area boundaries) v3.0, March 2026 release.
The Water Scores are 33055 (50) and 33056 (57). A score describes the utility's public test results for that ZIP code, not the water at any one tap (EPA SDWA, EPA UCMR and Florida DEP data, 2018-2024).
Arsenic (above its guideline in 2 of 2 utilities, up to 425 times), Bromodichloromethane (above its guideline in 2 of 2 utilities, up to 143 times) and Dibromochloromethane (above its guideline in 2 of 2 utilities, up to 48 times). Source: EPA SDWA, EPA UCMR and Florida DEP data, 2018-2024.
Not among the main suppliers listed here. EPA SDWA records (July to September 2026 extract) show no purchases of water from another system by these utilities.
The score starts at 100. It goes down 8 for each contaminant above a cited health guideline whose source states a cancer basis, 5 for each other contaminant above its cited guideline, 5 for each of PFOA and PFOS averaging above the 4.0 ppt limit in EPA's 2024 PFAS rule, 10 for each contaminant whose average of all samples is above EPA's legal limit (instead of its guideline step), and 1 for each contaminant with a cited cancer-based guideline that is detected below it. Only guidelines with a cited document count. The lowest score is 5. Higher is better.
A legal limit is an enforceable standard, set by the EPA under the Safe Drinking Water Act. Limits weigh health research together with the cost and feasibility of treatment. A health guideline is published by public-health sources and based on health research alone. A utility can meet every legal limit and still be above a published health guideline.
Our claims cover three results: chlorine and hardness at your kitchen tap, and dissolved solids at your drinking-water faucet. Guarantee terms ›