Longwood Water Hardness & Quality Report (2026)
Water Hardness
12.2 grains per gallon
Source
groundwater
pH Level
8.3
neutral = 7.0
Lead
0.005 mg/L
✓ Below action level
TDS
592.4 mg/L
Est. Daily Cost
$0.56
energy & soap waste
Source: USGS Water Quality Portal · Updated 2026
0–60
mg/L
Soft
61–120
mg/L
Moderately Hard
121–180
mg/L
Hard
180+
mg/L
Very Hard
Appliance Damage Report
In Longwood, your appliances are currently losing 28% efficiency due to mineral buildup.
| Appliance | In Longwood | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 2.7 yrs | 8.5 yrs | -68% |
| Washing Machine | 5.9 yrs | 12 yrs | -51% |
| Water Heater | 7.3 yrs | 15 yrs | -51% |
Regional Water Comparison
How Longwood compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Longwood, Florida | 208.5 mg/L | 9.1 ppt | 🔴 Very Hard | groundwater |
| Casselberry, Florida | 239.5 mg/L | 10.1 ppt | 🔴 Very Hard | groundwater |
| Winter Springs, Florida | 239.5 mg/L | 10.1 ppt | 🔴 Very Hard | groundwater |
| Altamonte Springs, Florida | 71.5 mg/L | 4.8 ppt | 🟡 Moderately Hard | groundwater |
| Lake Mary, Florida | 326.5 mg/L | 12.8 ppt | 🔴 Very Hard | groundwater |
National Benchmark
How Longwood compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Longwood | 208.5 mg/L | 🔴 High |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
Bring Badger-quality water to your Longwood home
Shop water softeners on Amazon.com →
What Makes Longwood's Water Unique?
Local geology and source profile
Longwood, Florida, in Seminole County — a Seminole County city adjacent to Altamonte Springs and Maitland in the north Orlando metro — receives its water from Seminole County Utilities, drawing from the Floridan Aquifer (Seminole County) through the north Orlando metro distribution.
The very hard 208.5 mg/L hardness and high TDS of 592.4 mg/L reflect the central Florida Seminole County Floridan Aquifer's very hard calcareous-evaporitic character — harder than the Hillsborough County communities (Gibsonton: 120.5 mg/L) due to Seminole County's deeper Floridan draws with more evaporitic sulfate content. The Floridan Aquifer at Seminole County — Eocene Avon Park Formation (calcareous and slightly evaporitic — primary hardness contributor), Oligocene Suwannee Limestone (calcareous), Eocene Ocala Limestone (calcareous — secondary contributor), and minor evaporitic sulfate at depth (TDS contributor).
At 208.5 mg/L with TDS 592, Longwood's water is very hard. A water softener is strongly recommended to prevent rapid scale buildup. A reverse osmosis system is advisable for drinking water. The PFAS level of 9.1 ppt warrants a certified reverse osmosis drinking water filter — Patrick Air Force Base (Brevard County — AFFF) and the Orlando metro Seminole County corridor contribute to Longwood's elevated readings.
Geology & Source: Longwood in Seminole County draws from the Seminole County Utilities on the Floridan Aquifer (Seminole County, central Florida) — the Floridan Aquifer at Seminole County is developed in Eocene Avon Park Formation (calcareous) and Oligocene Suwannee Limestone (calcareous) with minor evaporitic sulfate at depth — Florida Seminole County Floridan Aquifer Eocene-Oligocene calcareous-evaporitic produces very hard water at 208.5 mg/L with TDS 592.4 mg/L.