Brooklyn Park Water Hardness & Quality Report (2026)
Water Hardness
10.6 grains per gallon
Source
river
pH Level
8.1
neutral = 7.0
Lead
0.005 mg/L
✓ Below action level
TDS
378.6 mg/L
Est. Daily Cost
$0.48
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 Brooklyn Park, your appliances are currently losing 24% efficiency due to mineral buildup.
| Appliance | In Brooklyn Park | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 3.6 yrs | 8.5 yrs | -58% |
| Washing Machine | 6.9 yrs | 12 yrs | -43% |
| Water Heater | 8.4 yrs | 15 yrs | -44% |
Regional Water Comparison
How Brooklyn Park compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Brooklyn Park, Minnesota | 181 mg/L | 5.3 ppt | 🔴 Very Hard | river |
| Brooklyn Center, Minnesota | 180.5 mg/L | 5.3 ppt | 🔴 Very Hard | river |
| Crystal, Minnesota | 103.5 mg/L | 3.5 ppt | 🟡 Moderately Hard | river |
| New Hope, Minnesota | 107 mg/L | 3.6 ppt | 🟡 Moderately Hard | river |
| Robbinsdale, Minnesota | 254 mg/L | 7 ppt | 🔴 Very Hard | river |
National Benchmark
How Brooklyn Park compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Brooklyn Park | 181 mg/L | 🔴 High |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Brooklyn Park's Water Unique?
Local geology and source profile
Brooklyn Park, Minnesota — Hennepin County's second-largest city, a northern Twin Cities suburb adjacent to Brooklyn Center and Maple Grove — draws its municipal water supply through the City of Brooklyn Park Public Utilities Water Division, sourcing from a blend of Minneapolis Water Works (City of Minneapolis) treated Mississippi River water delivered through the regional distribution grid and local groundwater wells accessing the Jordan Sandstone and Ironton-Galesville Formation in Hennepin County. Brooklyn Park is one of the Twin Cities' major northern growth suburbs. Water hardness in Brooklyn Park measures 181 mg/L — classified as hard.
Brooklyn Park's hard supply reflects the northern Hennepin County water blend. The Jordan Sandstone and Ironton-Galesville Sandstone (Upper Cambrian — the primary Midwest municipal groundwater aquifer system in the Twin Cities area) in Hennepin County show variable hardness, but the Prairie du Chien Group dolomite (Ordovician — highly reactive) overlying the Jordan in northern Hennepin County contributes dissolved calcium and magnesium through aquifer intercommunication. The Mississippi River surface water component from Minneapolis Water Works adds a less-hard component, but where Brooklyn Park relies significantly on local Jordan–Prairie du Chien groundwater blending, finished hardness rises to the 181 mg/L range.
At 181 mg/L, Brooklyn Park residents face regular hard water challenges. Scale deposits form on faucet aerators, showerheads, and appliances within weeks — monthly descaling with citric acid solution is standard maintenance. City of Brooklyn Park Water Division consistently delivers water meeting all Minnesota MDH and EPA Safe Drinking Water Act requirements.
Geology & Source: Mixed supply from Minneapolis Water Works (City of Minneapolis) — Mississippi River surface water treatment — and local Jordan Sandstone and Ironton-Galesville Formation groundwater via the City of Brooklyn Park Water Division — the Hennepin County northern suburban distribution zone; hard supply at 181 mg/L — reflecting significant local Jordan sandstone aquifer blending in the northern suburban Minneapolis area.