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Water Hardness in Opa Locka, FL

Florida · 1 zip codes · 11 matched water systems

219 PPM
12.8 GPG
Hard
0Soft60120180300+
Verified — Annual Water Quality Report

City avg (weighted): 219 PPM

Dataset updated March 9, 202611 matched water systems in the city rollupIndividual systems and ZIPs can differ. Methodology

System used for this reading
Mdwasa - Main System
FL4130871
Water source: groundwater
Serves: 2,377,460
USGS environmental estimate: 233 PPM
Source context

How this city reading is built

This city reading is a weighted rollup across 11 matched water systems and 1 ZIP code. Citywide readings are useful for comparison, but individual utility zones and ZIPs can differ.

Source basis
11 verified treated-water sources
11 matched systems total for this city; treated-water reports are prioritized when available.
Water source profile
Primarily groundwater
Groundwater commonly picks up calcium and magnesium after contact with rock and soil. This profile is weighted by known population served across matched systems.
Data recency
March 9, 2026
Dataset rebuilt March 9, 2026; individual utility reporting years can vary.

Hardness is a mineral-content reading, not a drinking-water safety rating. Use it for scale, appliance, and softener decisions; check your utility report or test your tap before sizing treatment equipment. See how we calculate local readings.

Water Systems in Opa Locka

These systems are matched to Opa Locka, FL. Citywide readings are useful for comparison, but the system serving a specific address may differ from the city average.

11 water systems
PWSID is the public water system identifier. Data Source shows whether the hardness value comes from a treated-water report, USGS monitoring, or a local estimate; source year is shown when available.
Mdwasa - Main System
FL4130871
Hard
219 PPMgroundwater2,377,460 servedVerified — Annual Water Quality Report
Source water: 233 PPM
Hialeah, City Of
FL4130604
Hard
219 PPMgroundwater238,000 servedVerified — Annual Water Quality Report
Source water: 233 PPM
North Miami Beach
FL4131618
Hard
219 PPMgroundwater180,000 servedVerified — Annual Water Quality Report
Source water: 288 PPM
Miami Beach, City Of
FL4130901
Hard
219 PPMgroundwater100,000 servedVerified — Annual Water Quality Report
Source water: 233 PPM
North Miami, City Of
FL4130977
Hard
219 PPMgroundwater89,349 servedVerified — Annual Water Quality Report
Source water: 288 PPM
Showing the first 5 systems. Expand to review all matched systems.

Zip Codes in Opa Locka, FL

What This Means For You

Recommendations are based on the displayed hardness reading. Confirm your tap reading before sizing or buying treatment equipment.

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Frequently Asked Questions

How hard is the water in Opa Locka, FL?

The citywide weighted average water hardness in Opa Locka, FL is 219 PPM (12.8 GPG), classified as hard. This is based on 11 matched water systems.

Do I need a water softener in Opa Locka, FL?

With a citywide average hardness of 219 PPM, a water softener is recommended for homes in Opa Locka. Confirm your tap reading before sizing equipment.

Is hard water in Opa Locka, FL safe to drink?

Water hardness itself is a mineral-content reading, not a drinking-water safety rating. Calcium and magnesium are naturally occurring minerals, but you should check your utility's Consumer Confidence Report for contaminant and compliance information.

How many water systems serve Opa Locka, FL?

Opa Locka, Florida is served by 11 matched water systems across 1 zip code.

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