Miami-Dade County, Florida
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City of Opa-locka Public Works & Utilities has a Water Score of 49 out of 100 (Weak) on our scale. 5 of 41 detected contaminants are above a published health guideline (2016-2024). EPA compliance: no open violations (July to September 2026 extract); this is public data, not a test of your tap.
We didn't find chloramine in City of Opa-locka's EPA treatment records. That's not a complete list; your utility's annual water quality report says which disinfectant it uses.
Opa-locka has 1 scored ZIP code served mainly by 1 water utility, 1 of which buys water from another system. Water Scores range from 49 to 49, with a median of 49. The contaminant most often above a published health guideline is Arsenic, in 1 of 1 utility (EPA SDWA, EPA UCMR and Florida DEP data, 2020). Scored against health guidelines that are stricter than legal limits, using public utility data. Not a test of your tap.
| ZIP code | Main utility | Water Score | Above guideline |
|---|---|---|---|
| 33054 | City of Opa-locka | 49 Weak | 5 of 41 |
| Utility | ZIP codes | People served | Water Score | Above guideline | Buys water from |
|---|---|---|---|---|---|
| City of Opa-locka | 1 | 16,479 | 49 Weak | 5 of 41 | Miami-Dade Water & Sewer Department |
Purchased water: City of Opa-locka buys from Miami-Dade Water & Sewer Department.
Counted once per utility. Source: EPA SDWA, EPA UCMR and Florida DEP data, 2016-2024.
| Contaminant | Utilities above guideline | ZIP codes | Highest level | Years |
|---|---|---|---|---|
| Arsenic | 1 of 1 | 1 | 425 times its guideline | 2020 |
| Bromodichloromethane | 1 of 1 | 1 | 58 times its guideline | 2020-2022 |
| Chloroform | 1 of 1 | 1 | 39 times its guideline | 2020-2022 |
| Dibromochloromethane | 1 of 1 | 1 | 18 times its guideline | 2020-2022 |
| Chromium (hexavalent) | 1 of 1 | 1 | 6.9 times its guideline | 2016 |
10,002 housing units across 1 ZIP code with data: 63.8% single-family homes, 27.8% in buildings of five or more units, 48.4% 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.
City of Opa-locka Public Works & Utilities is the main water provider for Opa-locka. Some addresses can be served by a different system, so check your water bill: it names your utility.
visit https://opalockafl.gov/164/Water-Supply. Billing and outages are handled by the utility, not by ScoreYourWater.
1 utility is the main supplier for at least one scored ZIP code in Opa-locka. The largest by ZIP codes served: City of Opa-locka (1 ZIP code). Source: EPA Water System Boundaries (CWS service area boundaries) v3.0, March 2026 release.
The Water Scores are 33054 (49). 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, 2016-2024).
Arsenic (above its guideline in 1 of 1 utility, up to 425 times), Bromodichloromethane (above its guideline in 1 of 1 utility, up to 58 times) and Chloroform (above its guideline in 1 of 1 utility, up to 39 times). Source: EPA SDWA, EPA UCMR and Florida DEP data, 2016-2024.
Yes. City of Opa-locka buys from Miami-Dade Water & Sewer Department. Source: EPA SDWA records, July to September 2026 extract.
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.
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