Hardness
Very Hard
200 PPM · 11.7 GPG
Local water dashboard
Official source aggregationWater quality in Oran, MO 63771
A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Scott County.
1 reported benchmark flag
- Primary matched system
- Oran Pws
- Source water
- Groundwater
- County
- Scott 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
0.0027 mg/L
18% of action level
Utility match
2 systems
Serves 1,294 people system-wide
Hardness meter
How hard is the water?
Estimated local hardness
USGS hardness classification scale
200 PPM
Soft
0–59Moderate
60–120Hard
121–180Very hard
181+
0–59Moderate
60–120Hard
121–180Very hard
181+
Parts per million
200
mg/L as CaCO₃ equivalent
Grains per gallon
11.7
1 GPG ≈ 17.1 PPM
What this means at home
At 200 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
31
Nearest site
5.4 mi
Observation range
Mar 1, 2016–Jul 9, 2024
Estimate confidence
Moderate
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: T27N R13E S7 001 (Well).USGS source documentation ↗
Regional context
Is 63771 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Oran median
200 PPM
About the same1 indexed ZIP readings · Range 200–200 PPM
Missouri median
236 PPM
36 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 pass1 fail
Lead (PB90)
0.0027 mg/L
Reported Dec 31, 2024
Copper (CU90)
1.38 mg/L
Reported Dec 31, 1998
Numerical coverage
2 comparable results
Missing values remain blank; absence is not treated as a pass.
Lead (90th percentile)
Measured in mg/L
Local 0.0027
EPA limit 0.015
Copper (90th percentile)
Measured in mg/L
Local 1.38
EPA limit 1.3
Share of EPA benchmark
100% line = listed limit
2026Q2
- All records
- 21
- Health-based
- 3
- Active health-based
- 0
| Contaminant or rule | System | Status | Period |
|---|---|---|---|
| Groundwater Rule | MO4024582 | Archived | Feb 1, 2026through Feb 28, 2026 |
| Groundwater RuleHealth-based | MO4010604 | Resolved | Jan 19, 2026through Feb 10, 2026 |
| LEAD AND COPPER RULE REVISIONS | MO4010604 | Unaddressed | Jul 2, 2025 |
| LEAD AND COPPER RULE REVISIONS | MO4024582 | Unaddressed | Jul 2, 2025 |
| Lead and Copper Rule | MO4010604 | Resolved | Oct 1, 2024through Mar 10, 2025 |
| Groundwater Rule | MO4010604 | Resolved | Oct 1, 2024through Oct 31, 2024 |
| Public Notice | MO4010604 | Resolved | May 30, 2024through Jul 17, 2024 |
| Groundwater Rule | MO4010604 | Resolved | May 1, 2024through May 31, 2024 |
| Public Notice | MO4024582 | Resolved | Feb 7, 2024through Jul 23, 2024 |
| TTHM | MO4010604 | Resolved | Jan 1, 2024through Dec 31, 2024 |
| Total Haloacetic Acids (HAA5) | MO4010604 | Resolved | Jan 1, 2024through Dec 31, 2024 |
| Groundwater RuleHealth-based | MO4024582 | Resolved | Dec 6, 2023through Feb 9, 2024 |
| Groundwater Rule | MO4010604 | Resolved | Apr 1, 2023through Apr 30, 2023 |
| TTHM | MO4010604 | Resolved | Jan 1, 2023through Dec 31, 2023 |
| Total Haloacetic Acids (HAA5) | MO4010604 | Resolved | Jan 1, 2023through Dec 31, 2023 |
| Consumer Confidence Rule | MO4024582 | Resolved | Jul 1, 2022through Nov 29, 2022 |
| Groundwater Rule | MO4010604 | Resolved | Oct 1, 2021through Oct 31, 2021 |
| Public Notice | MO4024582 | Resolved | May 2, 2021through Jul 8, 2021 |
| Groundwater RuleHealth-based | MO4024582 | Resolved | Feb 28, 2021through Apr 21, 2021 |
| TTHM | MO4010604 | Resolved | Jan 1, 2021through Dec 31, 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 Oran ZIP 63771 using 200 PPM nearby hardness and 2 reported measurement benchmarks.
Scale protection
High-Capacity Whole House Water Softener
200 PPM is 2× 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 systemsDrinking water protection
Under-Sink Reverse Osmosis System
Copper (90th percentile) has 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 Oran
Is tap water safe in Oran?+
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 200 PPM, or 11.7 grains per gallon, classified as very hard. This is not a household tap measurement.
Do I need a water softener?+
At 200 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.