Hardness
Moderately Hard
102.5 PPM · 6 GPG
Local water dashboard
Official source aggregationWater quality in Cullman, AL 35058
A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Cullman County.
No active health-based violation reported
- Primary matched system
- Cullman, City Of
- Source water
- Surface water
- County
- Cullman 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
4 systems
Serves 36,312 people system-wide
Hardness meter
How hard is the water?
Estimated local hardness
USGS hardness classification scale
102.5 PPM
Soft
0–59Moderate
60–120Hard
121–180Very hard
181+
0–59Moderate
60–120Hard
121–180Very hard
181+
Parts per million
102.5
mg/L as CaCO₃ equivalent
Grains per gallon
6
1 GPG ≈ 17.1 PPM
What this means at home
At 102.5 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
2
Nearest site
73 mi
Observation range
Jan 19, 2016–Dec 2, 2024
Estimate confidence
Low
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: COOSA RIVER AT STATE LINE, AL/GA (Stream).USGS source documentation ↗
Regional context
Is 35058 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Cullman median
84 PPM
19 PPM higher2 indexed ZIP readings · Range 65–102.5 PPM
Alabama median
38 PPM
65 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
- 18
- Health-based
- 0
- Active health-based
- 0
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Public Notice | AL0000398 | Resolved | Sep 1, 2023through Dec 4, 2023 |
| Lead and Copper Rule | AL0001786 | Resolved | Jan 1, 2023through Oct 17, 2025 |
| CARBON, TOTAL | AL0000398 | Resolved | Jul 1, 2022through Sep 30, 2022 |
| Total Haloacetic Acids (HAA5) | AL0001786 | Resolved | Feb 23, 2022through May 22, 2022 |
| Lead and Copper Rule | AL0000402 | Unaddressed | Jan 1, 2022 |
| Radium-228 | AL0000398 | Resolved | Oct 1, 2021through Dec 31, 2021 |
| TTHM | AL0000408 | Resolved | Aug 18, 2021through Nov 21, 2021 |
| Total Haloacetic Acids (HAA5) | AL0000408 | Resolved | Aug 18, 2021through Nov 21, 2021 |
| TTHM | AL0000402 | Resolved | Aug 17, 2021through Nov 21, 2021 |
| Total Haloacetic Acids (HAA5) | AL0000402 | Resolved | Aug 17, 2021through Nov 21, 2021 |
| TTHM | AL0000408 | Resolved | Jun 16, 2021through Aug 22, 2021 |
| Total Haloacetic Acids (HAA5) | AL0000408 | Resolved | Jun 16, 2021through Aug 22, 2021 |
| TTHM | AL0000402 | Resolved | May 20, 2021through Aug 22, 2021 |
| Total Haloacetic Acids (HAA5) | AL0000402 | Resolved | May 20, 2021through Aug 22, 2021 |
| Total Haloacetic Acids (HAA5) | AL0000402 | Resolved | Feb 19, 2021through May 23, 2021 |
| TTHM | AL0000402 | Resolved | Feb 19, 2021through May 23, 2021 |
| Total Haloacetic Acids (HAA5) | AL0000408 | Resolved | Feb 18, 2021through May 23, 2021 |
| TTHM | AL0000408 | Resolved | Feb 18, 2021through May 23, 2021 |
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 Cullman ZIP 35058 using 102.5 PPM nearby hardness and 1 reported measurement benchmarks.
No urgent match
Start with an independent water test
This profile does not trigger a treatment recommendation. Test at the tap before investing in equipment.
Affiliate 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.
Nearby indexed reports
Compare ZIPs in Cullman
Estimates can differ across a city because monitoring locations and associated systems differ.
Frequently asked
Water questions for Cullman
Is tap water safe in Cullman?+
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 102.5 PPM, or 6 grains per gallon, classified as moderately hard. This is not a household tap measurement.
Do I need a water softener?+
There is no high-hardness trigger in this profile. Confirm with a tap test before buying equipment.