Bohemia Water Hardness & Quality Report (2026)
Water Hardness
7.2 grains per gallon
Source
reservoir
pH Level
7.8
neutral = 7.0
Lead
0.005 mg/L
✓ Below action level
TDS
260.1 mg/L
Est. Daily Cost
$0.33
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 Bohemia, your appliances are currently losing 16% efficiency due to mineral buildup.
| Appliance | In Bohemia | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 5.5 yrs | 8.5 yrs | -35% |
| Washing Machine | 9 yrs | 12 yrs | -25% |
| Water Heater | 10.7 yrs | 15 yrs | -29% |
Regional Water Comparison
How Bohemia compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Bohemia, New York | 123 mg/L | 5.9 ppt | 🟠 Hard | reservoir |
| Sayville, New York | 164.5 mg/L | 7.9 ppt | 🟠 Hard | reservoir |
| Holbrook, New York | 166.5 mg/L | 8 ppt | 🟠 Hard | reservoir |
| Ronkonkoma, New York | 70.5 mg/L | 3.4 ppt | 🟡 Moderately Hard | reservoir |
| Lake Ronkonkoma, New York | 179 mg/L | 8.5 ppt | 🟠 Hard | reservoir |
National Benchmark
How Bohemia compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Bohemia | 123 mg/L | 🟠 Moderate |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
Bring Badger-quality water to your Bohemia home
Shop water softeners on Amazon.com →
What Makes Bohemia's Water Unique?
Local geology and source profile
Bohemia, New York, in Suffolk County — a Suffolk County hamlet adjacent to Sayville and Islip in the central Long Island area — receives its water from the Suffolk County Water Authority, drawing from the Magothy and Upper Glacial aquifers through the Long Island distribution.
The hard 123 mg/L hardness and TDS of 260.1 mg/L reflect the Suffolk County supply's hard Long Island aquifer character — the Cretaceous Magothy Formation and Pleistocene Upper Glacial aquifer are sandy-calcareous formations in the Long Island Coastal Plain; the Bohemia area wells draw from the deep Magothy aquifer zone where dissolved mineral content is moderately concentrated compared to the shallower Upper Glacial (compare Sayville NY: 119/251 in Suffolk County comparable; Islip NY: 126/269 in Suffolk County comparable; Bohemia consistent hard from the same Suffolk County Magothy aquifer Cretaceous supply). The Long Island aquifer system — Cretaceous Magothy Formation (sandy insoluble — primary dilutant), Pleistocene Upper Glacial aquifer (sandy calcareous — primary hardness contributor), and Quaternary Long Island glaciolacustrine deposit (calcareous — TDS contributor).
At 123 mg/L with TDS 260, Bohemia's water is hard — scale builds in appliances. Quarterly descaling is appropriate. The PFAS level of 5.9 ppt warrants a certified drinking water filter. Review the Suffolk County Water Authority's annual water quality report.
Geology & Source: Bohemia in Suffolk County draws from the Suffolk County Water on the Magothy/Upper Glacial aquifer (Suffolk County, central Long Island) — the Long Island Coastal Plain at Suffolk County draws from Cretaceous Magothy Formation (sandy insoluble) and Pleistocene Upper Glacial aquifer (sandy calcareous) — New York Suffolk County Magothy aquifer Cretaceous supply produces hard water at 123 mg/L with TDS 260.1 mg/L.