Windermere, FL water quality
Windermere is largely unincorporated and served by private wells drawing directly from the Floridan Aquifer. Expect hard water with notable iron and sulfur (rotten-egg odor), and no chlorine residual to control bacteria — annual well testing and whole-home treatment are strongly recommended.
Scored from published utility reports — legally compliant water can still score high.
Free in-home water test
Your Windermere score is 67/100 — see what it is at your address.
Book my free water testNo obligation, no hard sell. Mon–Sat 8:00am–7:00pm.
Contaminant panel
What's actually in Windermere water.
USGS groundwater context · reviewed July 29, 2026
Hardness
Soft < 3 gpg
Untreated well water — very hard, heavy scale on fixtures and appliances.
No public source — private wells are not tested by any agency. EPA SDWIS
Sulfur / Hydrogen Sulfide
EPA SMCL <0.05 ppm
Rotten-egg odor common in shallow Floridan Aquifer wells.
No public source — private wells are not tested by any agency. EPA SDWIS
Iron
EPA SMCL 0.3 ppm
Orange staining on fixtures, laundry, and well casings.
No public source — private wells are not tested by any agency. EPA SDWIS
Radium
EPA MCL 5 pCi/L
Naturally occurring in deep Floridan Aquifer draw zones.
No public source — private wells are not tested by any agency. EPA SDWIS
Bacteria (Coliform)
Untreated wells
Private wells require annual testing; no chlorine residual.
No public source — private wells are not tested by any agency. EPA SDWIS
Sediment
—
Sand and turbidity common after heavy rain events.
No public source — private wells are not tested by any agency. EPA SDWIS
Your street, not just your city
Which Windermere neighborhood are you in?
Enter your full address and we'll name your subdivision and the exact water system that serves it. Contaminant testing is only published at the utility level, so the numbers are the same — the geography is yours.
Check your water in 5 seconds
Enter your address or zip — we'll pull your neighborhood's contamination profile.
Public water system
Who actually supplies Windermere's water.
Drinking water isn't tested or regulated by neighborhood — it's tested by Public Water System (PWS). One utility pipes the same treated water to dozens of neighborhoods. So "what's the water like in Windermere" really means "which utility serves Windermere, and what does that utility's water look like."
Orange County Utilities — West Regional
- PWS ID (EPA SDWIS)
- FL3481546
- Population served
- 206,742 across 34 communities
- Source water
- Floridan Aquifer (groundwater)
EPA compliance status: In compliance. Zero MCL violations on record per EPA ECHO/SDWIS.
Bottom line: Same aquifer and same treatment approach as OCU South, so expect a very similar disinfection-byproduct and arsenic signature. TapWaterData's aggregation flags one contaminant clearly above guideline for this system. Legal water — with a DBP load that reverse osmosis or activated carbon removes almost entirely.
Two different things get called "bad water."
"Exceeds health guideline" means the contaminant is legally fine — below the enforceable limit — but above a stricter, non-enforceable benchmark (EWG's) that some scientists consider safer. Nearly every Florida utility exceeds several of these, because Floridan Aquifer groundwater plus chlorination produces disinfection byproducts.
2 flagged items on this system. Not illegal water. Genuinely useful if you want to filter it out.
What's flagged on the OCU West system
Tap any row for the detail. Values are utility-wide, as published.
Same source water and treatment as OCU South — expect a comparable profile. We do not publish a West-specific number we have not pulled from the CCR.
Legal — above a stricter, non-enforceable health guideline.
Naturally occurring in Floridan Aquifer groundwater.
Legal — above a stricter, non-enforceable health guideline.
This is the single largest system by community count in unincorporated Orange County.
South Apopka is on this county system — not the City of Apopka utility — despite sharing the Apopka name and zip code. It is an unincorporated CDP adjacent to, but not inside, the city, with a documented history of water and infrastructure disparity complaints relative to the city next door.
Neighborhoods and communities served by Orange County Utilities — West Regional
Same treated water, same test results — the difference between these addresses is plumbing age and distance from the plant, not the source.
Neighborhoods
Ranked worst → best.
11 recognized Windermere communities and subdivisions, ranked worst to best. Tap one for its profile.
Neighborhood profile
Butler Bay
Windermere, FL · Private wells
- Hardness
- Moderate
- Chlorine
- Low
Butler Bay homes rely on private Floridan Aquifer wells with no chlorine residual; iron and sulfur odor are the most common complaints, and softener use is widespread. Older casings (built 1990s) can also introduce sediment after heavy rain.
- Built 1990s~300 homes34786
How we score a Windermere neighborhood
No agency publishes testing per subdivision — it is published per public water system. So the score is a documented model, not a measurement:
- 1Start from the serving utility's own published baseline (hardness plus disinfection-byproduct load from its most recent Consumer Confidence Report).
- 2Add for plumbing era: +8 for pre-1960 housing stock, +4 for 1960s-80s, +2 for 1990s-2000s, +0 for 2010 and newer.
- 3Add for service-zone position: +6 where the subdivision sits at the end of long distribution mains (newer master-planned build-outs), +3 for the oldest downtown mains.
- 4Add for local sources: +12 private or community well, +9 airport/GOAA PFAS influence area, +7 industrial adjacency, +3 golf-corridor irrigation, +2 lakefront shallow-well and iron staining.
- 5Clamp to 30-95, then map to low / moderate / high. Wells get chlorine scored near zero — nothing is disinfecting that water at all.
Where the Windermere community names come from
Windermere publishes no official neighborhood map, so these are the recognized subdivision and community names used by the city, USPS mail routes, and local listings.
Data compiled from Windermere Consumer Confidence Reports and EPA ECHO monitoring. Neighborhood-level readings are estimates based on service zone, plumbing age, and source blending; a free on-site test provides exact numbers for your address.
Water system
Private well (no public water system)
Homes here draw directly from the Floridan Aquifer through a private well. Private wells are not regulated, not treated, and not tested by any agency — there is no CCR for this address because no one is required to produce one.
Maintenance
Last reviewed July 29, 2026
CCRs publish annually. We re-check every page against the current report. Full methodology.
Recent incidents
Actual "bad water" events near Windermere.
Orange County's real-world water problems over the last year have been infrastructure incidents, not contamination events. No countywide contamination event, no lead-in-water crisis, and no system in the county currently shows an active legal (MCL) violation in EPA's ECHO/SDWIS database.
- July 8-13, 2025Resolved
Precautionary boil-water advisory — SR-535 corridor
Orange County Utilities — SR-535 / Palm Parkway area
A contractor struck a water main near SR-535 / S. Apopka-Vineland Rd. / Winter Garden-Vineland Rd. / Palm Parkway. Orange County Utilities issued a precautionary boil-water advisory for the surrounding area. This is standard procedure any time system pressure drops, because low pressure opens a path for bacteria — it does not mean contamination was found. The advisory was lifted after roughly three days once bacteriological testing came back clean, then extended once more into mid-August 2025 during repairs before being fully lifted.
What happens next
The free test, exactly as it works.
We're testing homes in Windermere now
Book a slot and a technician brings a full field kit to your kitchen sink — hardness, chlorine, iron, TDS and pH, measured on site.
About 20 minutes, start to finish
You get your numbers written down and compared against your utility's own published report. Nothing is installed on the test visit.
A recommendation, not a hard close
If filtration makes sense, you get a fixed written price and financing options. If it doesn't, we'll tell you that too.
We don't publish customer reviews or install counts here until they come straight from our Google Business Profile — nothing on this page is a stand-in for real ones.
2 quick questions
What should we look at first in your Windermere home?
No contact info needed to answer — this just tells our tech what to test for.
Straight answers
Before you call anyone in Windermere.
Need is the wrong word: Orange County Utilities — West Regional delivers water that meets every enforceable EPA limit. Filtration is about the things those limits don't cover — hardness that scales your fixtures and water heater, chlorine taste and smell, and disinfection byproducts that sit above the stricter (non-enforceable) EWG health guideline. Legal water and water you enjoy drinking aren't the same standard.
Free in-home water test
See what's actually coming out of your tap in Windermere.
A technician tests hardness, chlorine, iron, TDS and pH at your kitchen sink, walks you through the numbers, and leaves you the results — whether or not you buy anything.
Book my free water testNo obligation, no hard sell. Mon–Sat 8:00am–7:00pm.
Not ready to book? Text me this report.
One field. We'll send a link to this Windermere water report so you can read it later or forward it to a neighbor.
Phone number only. No email, no spam.
Get your Windermere numbers in writing.
Free in-home water test. Pick your own day and time window — name and phone, nothing else.
Book my free water testNothing gets installed on a test visit. If filtration makes sense, you get a fixed written price.