Typical values from 70 sampled wells in Manatee County · Full groundwater profile
What Manatee County Wells Usually Need
Very hard water: 21.2 gpg. At 21.2 grains per gallon, well water in Manatee County is harder than in 50 of the other 57 Florida counties with enough data.
Drink it untreated? Generally yes in the records, though only your own test covers your well.
Typical treatment, in plumbing order:
- A whole-house sediment filter first, so sand and scale do not foul the stages after it.
- A softener in the 48,000-grain range for a family of four at 21.2 gpg (includes 5 gpg per ppm of iron).
See the right order for these stages. Your own test result decides the final list.
Not sure what to install? Get a filter recommendation for Manatee County homesOn city or county water instead? Your utility publishes an annual water quality report; this page covers private wells. Find your utility's report
On this page (7 sections)
Well Water Testing in Manatee County: Who to Call
- Florida Department of Health in Manatee County, Environmental Public Health: 941-714-7593. Well testing details
- Certified labs: how to find a state-certified lab (FDOH)
Contacts as listed on the official page, checked November 2026. Call before you go; hours and fees change.
What Are You Noticing in Your Water?
Pre-selected from Manatee County well data. Untick anything you do not notice in your own water.
Confirm with a lab test before buying equipment.
Explore Florida Interactive Map
Explore Manatee County and nearby counties
Nearly all homes in Manatee County, in Southwest Florida, are on public water. The Florida Department of Health's 2023 inventory counts 1.8% of built parcels, roughly 2,952 properties, on private wells, mostly on rural lots outside utility service areas.
Most groundwater pumped in Manatee County comes from the Floridan Aquifer (USGS, 2015 withdrawals). Samples from 70 local wells put the median hardness at 21.2 gpg (very hard) and median iron at 0.03 mg/L. The county's largest communities are Bradenton, Lakewood Ranch and South Bradenton.
In this guide
Groundwater Profile: Manatee County
Across 70 sampled wells, the median hardness is 21.2 gpg (very hard). At 21.2 gpg, Manatee wells run harder than Hillsborough (14.1 gpg) and Hardee (10.4 gpg), softer than Sarasota (38.4 gpg) and about as hard as DeSoto (20.5 gpg) next door.
Another address? Check hardness by ZIP code.
What shows up in local well samples:
- HardnessMedian 21.2 gpg; 94% of 70 sampled wells above 7 gpg
Calcium and magnesium dissolved from limestone. Leaves scale on fixtures and water heaters and reduces soap lather. Not a health risk.
Water softener sizing - Total dissolved solidsMedian 562 mg/L; 55% of sampled wells above 500 mg/L
A high overall mineral load that affects taste and causes scaling. The EPA aesthetic guideline is 500 mg/L.
Reverse osmosis guide
How Manatee County Compares to Florida and the U.S.
See How Manatee County Compares to Florida & the US
| Share of wells with… | Manatee CountyManatee | FloridaFL | United StatesUS |
|---|---|---|---|
| Hard water (above 7 gpg) | 94% | 79% | 60% |
| Iron above 0.3 mg/L | 19% | 35% | 19% |
| Manganese above 0.05 mg/L | 3% | 8% | 21% |
| Dissolved solids above 500 mg/L | 55% | 22% | 15% |
| Acidic water (pH below 6.5) | 15% | 15% | 14% |
| Nitrate above 10 mg/L (EPA limit) | No data | 2% | 4% |
| Arsenic above 10 µg/L (EPA limit) | 0% | 3% | 7% |
| Median hardness | 21.2 gpg | 12.4 gpg | — |
| Median pH | 7.2 | 7.2 | 7.3 |
Sources: Water Quality Portal (since 2000); US: USGS Circular 1332. Highlighted: well above the US share.
See what a typical Manatee County well needs
Pre-filled with the Manatee medians. Swap in your own results.
Testing Your Well in Manatee County
The Florida Department of Health in Manatee County oversees private well permitting in the county and investigates suspected contamination. For routine bacteria, nitrate or full-panel tests, use a laboratory certified by the Florida Department of Health.
What to test for in Manatee County:
- Bacteria (total coliform and E. coli) and nitrate, at least once a year (Florida Department of Health recommendation)
- Hardness in grains per gallon (gpg) to size a softener
- After any flood, new well work or a change in taste, color or smell
Which tests to order and how: how to test well water.
After a positive coliform test, work out the bleach dose and shock the well and retest 10 to 14 days later.
Nearby Counties
Manatee County borders these counties with published reports:
DeSoto County
20.5 gpg hardness · Hardness, Total dissolved solidsHardee County
10.4 gpg hardness · HardnessHillsborough County
14.1 gpg hardness · Hardness, Hydrogen sulfideSarasota County
38.4 gpg hardness · Hardness, Chloride (salinity)Counties with similar well water
Farther away, these Florida counties share the same main water issues:
Frequently Asked Questions
Is well water in Manatee County safe to drink?
Generally yes in the records: health limits are rarely exceeded in the 70 Manatee wells sampled. The common problems here (hardness) affect taste, stains and plumbing, not health. Bacteria and nitrate can still turn up in any well, so test once a year.
How many homes in Manatee County use private wells?
The Florida Department of Health’s Florida Water Management Inventory (2023 data) found 1.8% of built parcels in Manatee County on private wells, roughly 2,952 properties.
How hard is well water in Manatee County?
21.2 gpg (362 mg/L) in the typical well, based on 70 samples: very hard on the USGS scale, against a Florida median of 12.4 gpg. 94% of sampled wells top 7 gpg, where a softener usually pays off.
Is iron a problem in Manatee County well water?
Only in some wells. 19% of 70 sampled Manatee wells top the EPA’s 0.3 mg/L guideline; the typical well has 0.03 mg/L. Orange or black stains are the sign to get a lab test for iron and manganese.
Why does my well water smell like rotten eggs in Manatee County?
Too few Manatee wells (0) have hydrogen sulfide results to say how common the smell is. If you notice it, a sulfide test confirms it. At typical levels it is a nuisance rather than a health risk.
Does boiling well water make it safe to drink in Manatee County?
Only against germs. A one-minute rolling boil kills bacteria after a positive test or a boil water notice, but it leaves minerals and chemicals behind in less water. See what boiling can and cannot fix.
How often should I test my well water in Manatee County?
The Florida Department of Health recommends testing private wells for bacteria and nitrate at least once a year, and again after flooding or well repairs. The Florida Department of Health in Manatee County can explain how to collect and submit samples.
Written by Well Water Advisor Editorial Team.