Hardness
Soft
58.9 PPM · 3.4 GPG
Local water dashboard
Official source aggregationWater quality in Kake, AK 99830
A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Prince Of Wales-Hyder Census Area.
3 reported benchmark flags
- Primary matched system
- Kake Municipal Water
- Source water
- Surface water
- County
- Prince Of Wales-Hyder Census Area
- 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
0.0079 mg/L
53% of action level
Utility match
1 system
Serves 415 people system-wide
Hardness meter
How hard is the water?
Estimated local hardness
USGS hardness classification scale
58.9 PPM
Soft
0–59Moderate
60–120Hard
121–180Very hard
181+
0–59Moderate
60–120Hard
121–180Very hard
181+
Parts per million
58.9
mg/L as CaCO₃ equivalent
Grains per gallon
3.4
1 GPG ≈ 17.1 PPM
What this means at home
At 58.9 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
1
Nearest site
74.3 mi
Observation range
Aug 23, 2017–Jul 22, 2025
Estimate confidence
Low
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: STIKINE R NR WRANGELL AK (Stream).USGS source documentation ↗
Regional context
Is 99830 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Kake median
59 PPM
About the same1 indexed ZIP readings · Range 58.9–58.9 PPM
Alaska median
83 PPM
24 PPM lower18 indexed ZIP readings · Range 36.7–199 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 pass3 fail
Lead (PB90)
0.0079 mg/L
Reported Jun 30, 2026
Copper (CU90)
1.4 mg/L
Reported Jun 30, 2017
Numerical coverage
4 comparable results
Missing values remain blank; absence is not treated as a pass.
Lead (90th percentile)
Measured in mg/L
Local 0.0079
EPA limit 0.015
Copper (90th percentile)
Measured in mg/L
Local 1.4
EPA limit 1.3
Total Haloacetic Acids (HAA5)
Measured in MG/L
Local 0.08
EPA limit 0.06
TTHM
Measured in MG/L
Local 0.082
EPA limit 0.08
Share of EPA benchmark
100% line = listed limit
2026Q2
- All records
- 51
- Health-based
- 24
- Active health-based
- 0
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Total Haloacetic Acids (HAA5)Health-basedReported 0.08 MG/L · MCL 0.06 | AK2130083 | Archived | Jan 1, 2026through Mar 31, 2026 |
| Total Haloacetic Acids (HAA5)Health-basedReported 0.09 MG/L · MCL 0.06 | AK2130083 | Archived | Oct 1, 2025through Dec 31, 2025 |
| TTHM | AK2130083 | Resolved | Oct 1, 2025through Dec 31, 2025 |
| Total Haloacetic Acids (HAA5) | AK2130083 | Resolved | Oct 1, 2025through Dec 31, 2025 |
| Total Haloacetic Acids (HAA5)Health-basedReported 0.097 MG/L · MCL 0.06 | AK2130083 | Archived | Jul 1, 2025through Sep 30, 2025 |
| Total Haloacetic Acids (HAA5)Health-basedReported 0.102 MG/L · MCL 0.06 | AK2130083 | Archived | Apr 1, 2025through Jun 30, 2025 |
| Total Haloacetic Acids (HAA5)Health-basedReported 0.084 MG/L · MCL 0.06 | AK2130083 | Archived | Jan 1, 2025through Mar 31, 2025 |
| Interim Enhanced Surface Water Treatment Rule | AK2130083 | Resolved | Dec 1, 2024through Dec 31, 2024 |
| Surface Water Treatment Rule | AK2130083 | Resolved | Dec 1, 2024through Dec 31, 2024 |
| Surface Water Treatment Rule | AK2130083 | Resolved | Nov 1, 2024through Nov 30, 2024 |
| Interim Enhanced Surface Water Treatment Rule | AK2130083 | Resolved | Nov 1, 2024through Nov 30, 2024 |
| Interim Enhanced Surface Water Treatment Rule | AK2130083 | Resolved | Oct 1, 2024through Oct 31, 2024 |
| Surface Water Treatment Rule | AK2130083 | Resolved | Oct 1, 2024through Oct 31, 2024 |
| Total Haloacetic Acids (HAA5)Health-basedReported 0.086 MG/L · MCL 0.06 | AK2130083 | Archived | Oct 1, 2024through Dec 31, 2024 |
| Interim Enhanced Surface Water Treatment Rule | AK2130083 | Resolved | Sep 1, 2024through Sep 30, 2024 |
| Surface Water Treatment Rule | AK2130083 | Resolved | Sep 1, 2024through Sep 30, 2024 |
| Interim Enhanced Surface Water Treatment Rule | AK2130083 | Resolved | Aug 1, 2024through Aug 31, 2024 |
| Surface Water Treatment Rule | AK2130083 | Resolved | Aug 1, 2024through Aug 31, 2024 |
| Total Haloacetic Acids (HAA5)Health-basedReported 0.083 MG/L · MCL 0.06 | AK2130083 | Archived | Jul 1, 2024through Sep 30, 2024 |
| Revised Total Coliform Rule | AK2130083 | Resolved | Jul 1, 2024through Jul 31, 2024 |
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 Kake ZIP 99830 using 58.9 PPM nearby hardness and 4 reported measurement benchmarks.
Drinking water protection
Under-Sink Reverse Osmosis System
Copper (90th percentile), Total Haloacetic Acids (HAA5), TTHM have a measured benchmark flag or active health-based SDWIS record in this profile.
A certified multi-stage RO system targets a broader range of dissolved contaminants at the kitchen tap.
Explore under-sink filtrationAffiliate 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 Kake
Is tap water safe in Kake?+
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 58.9 PPM, or 3.4 grains per gallon, classified as soft. 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.