Hardness
Very Hard
2720 PPM · 159.1 GPG
Local water dashboard
Official source aggregationWater quality in Grand Bay, AL 36541
A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Mobile County.
No active health-based violation reported
- Primary matched system
- Grand Bay Water Works Board
- Source water
- Groundwater
- County
- Mobile County
- Profile updated
At a glance
What the current records say
EPA quarter 2026Q2
Compliance screen
No active flag
0 active health-based records
Lead 90th percentile
0 mg/L
0% of action level
Utility match
1 system
Serves 11,100 people system-wide
Hardness meter
How hard is the water?
Estimated local hardness
USGS hardness classification scale
2720 PPM
Soft
0–59Moderate
60–120Hard
121–180Very hard
181+
0–59Moderate
60–120Hard
121–180Very hard
181+
Parts per million
2720
mg/L as CaCO₃ equivalent
Grains per gallon
159.1
1 GPG ≈ 17.1 PPM
What this means at home
At 2720 PPM, mineral scale can build up on fixtures and heating elements, reduce soap lather, and leave visible spotting. Hardness is primarily an aesthetic and appliance concern—not itself a tap-water safety rating.
USGS sites used
17
Nearest site
14.7 mi
Observation range
May 16, 2018–Oct 25, 2021
Estimate confidence
Moderate
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: MS SOUND AT COUNTRY CLUB DR AT PASCAGOULA, MS (Coastal).USGS source documentation ↗
Regional context
Is 36541 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Grand Bay median
2720 PPM
About the same1 indexed ZIP readings · Range 2720–2720 PPM
Alabama median
38 PPM
2682 PPM higher406 indexed ZIP readings · Range 7.4–2810 PPM
EPA benchmark screen
Contaminant snapshot
Available numerical results from associated SDWIS community water systems, compared with the applicable action level or federal MCL. Federal measured-value coverage is incomplete.
1 pass
Lead (PB90)
0 mg/L
Reported Dec 31, 2025
Copper (CU90)
Not available
No numerical 90th-percentile result
Numerical coverage
1 comparable result
Missing values remain blank; absence is not treated as a pass.
Lead (90th percentile)
Measured in mg/L
Local 0
EPA limit 0.015
Share of EPA benchmark
100% line = listed limit
2026Q2
- All records
- 14
- Health-based
- 0
- Active health-based
- 0
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Nitrite | AL0000983 | Resolved | Jan 11, 2023through Oct 3, 2023 |
| Antimony, Total | AL0000983 | Resolved | Jan 11, 2023through Oct 3, 2023 |
| Beryllium, Total | AL0000983 | Resolved | Jan 11, 2023through Oct 3, 2023 |
| Selenium | AL0000983 | Resolved | Jan 11, 2023through Oct 3, 2023 |
| Arsenic | AL0000983 | Resolved | Jan 11, 2023through Oct 3, 2023 |
| Barium | AL0000983 | Resolved | Jan 11, 2023through Oct 3, 2023 |
| CYANIDE | AL0000983 | Resolved | Jan 11, 2023through Oct 3, 2023 |
| Fluoride | AL0000983 | Resolved | Jan 11, 2023through Oct 3, 2023 |
| Mercury | AL0000983 | Resolved | Jan 11, 2023through Oct 3, 2023 |
| Nitrate | AL0000983 | Resolved | Jan 11, 2023through Oct 3, 2023 |
| Thallium, Total | AL0000983 | Resolved | Jan 11, 2023through Oct 3, 2023 |
| Cadmium | AL0000983 | Resolved | Jan 11, 2023through Oct 3, 2023 |
| Chromium | AL0000983 | Resolved | Jan 11, 2023through Oct 3, 2023 |
| Nickel | AL0000983 | Resolved | Jan 11, 2023through Oct 3, 2023 |
No reported violation does not prove that every contaminant was tested or absent; SDWIS measured values are incomplete and lag state records.
Solutions matcher
Your personalized water action plan
Matched to Grand Bay ZIP 36541 using 2720 PPM nearby hardness and 1 reported measurement benchmarks.
Scale protection
High-Capacity Whole House Water Softener
2720 PPM is 23× the high-hardness trigger used by this matcher.
Designed to reduce scale on fixtures, water heaters, glassware, and plumbing throughout the home.
Compare whole-house systemsAffiliate disclosure: we may earn a commission from qualifying purchases, at no added cost to you. Product matching is educational and does not replace certified water testing.
Frequently asked
Water questions for Grand Bay
Is tap water safe in Grand Bay?+
EPA ECHO shows no active health-based violation for the associated systems in this reporting snapshot. This does not prove every contaminant is absent; federal records can lag and household plumbing can change tap conditions.
How hard is the water?+
Nearby USGS observations produce an estimate of 2720 PPM, or 159.1 grains per gallon, classified as very hard. This is not a household tap measurement.
Do I need a water softener?+
At 2720 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.