Hardness
Soft
40.6 PPM · 2.4 GPG
Local water dashboard
Official source aggregationWater quality in East Prairie, MO 63845
A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Mississippi County.
No active health-based violation reported
- Primary matched system
- East Prairie Pws
- Source water
- Groundwater
- County
- Mississippi 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
0.0043 mg/L
29% of action level
Utility match
1 system
Serves 2,964 people system-wide
Hardness meter
How hard is the water?
Estimated local hardness
USGS hardness classification scale
40.6 PPM
Soft
0–59Moderate
60–120Hard
121–180Very hard
181+
0–59Moderate
60–120Hard
121–180Very hard
181+
Parts per million
40.6
mg/L as CaCO₃ equivalent
Grains per gallon
2.4
1 GPG ≈ 17.1 PPM
What this means at home
At 40.6 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
53
Nearest site
14.5 mi
Observation range
Apr 27, 2016–Jul 9, 2024
Estimate confidence
Moderate
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: T26N R17E S24 001 (Well).USGS source documentation ↗
Regional context
Is 63845 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
East Prairie median
41 PPM
About the same1 indexed ZIP readings · Range 40.6–40.6 PPM
Missouri median
236 PPM
195 PPM lower556 indexed ZIP readings · Range 38.3–483 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)
0.0043 mg/L
Reported Dec 31, 2022
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 0.0043
EPA limit 0.015
Share of EPA benchmark
100% line = listed limit
2026Q2
- All records
- 6
- Health-based
- 0
- Active health-based
- 0
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Groundwater Rule | MO4010235 | Archived | Mar 1, 2026through Mar 31, 2026 |
| Lead and Copper Rule | MO4010235 | Unaddressed | Oct 1, 2025 |
| LEAD AND COPPER RULE REVISIONS | MO4010235 | Unaddressed | Jul 2, 2025 |
| Groundwater Rule | MO4010235 | Resolved | Jul 1, 2025through Jul 31, 2025 |
| Groundwater Rule | MO4010235 | Resolved | May 1, 2025through May 31, 2025 |
| Groundwater Rule | MO4010235 | Resolved | Oct 1, 2024through Oct 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 East Prairie ZIP 63845 using 40.6 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.
Frequently asked
Water questions for East Prairie
Is tap water safe in East Prairie?+
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 40.6 PPM, or 2.4 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.