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Water Hardness in 63961

Qulin, Missouri · Butler County

133 PPM
7.8 GPG
Moderately Hard
0Soft60120180300+
High Confidence — USGS Monitoring

Dataset updated March 9, 2026Matched to 4 water systemsTap readings can vary by utility zone, treatment, and plumbing. Methodology

Source context

How this ZIP reading is built

This ZIP reading is built from 4 matched water systems. When more than one system is matched, the displayed value is weighted toward larger known service populations when that data is available.

Source basis
4 USGS-backed sources
4 matched systems total for this ZIP; USGS monitoring is used where treated-water reports are unavailable.
Water source profile
Primarily surface water
Surface-water hardness can shift with reservoirs, runoff, season, and treatment. This profile is weighted by known population served across matched systems.
Data recency
March 9, 2026
Dataset rebuilt March 9, 2026; individual utility reporting years can vary.

Hardness is a mineral-content reading, not a drinking-water safety rating. Use it for scale, appliance, and softener decisions; check your utility report or test your tap before sizing treatment equipment. See how we calculate local readings.

Water Systems Serving 63961

These are the systems matched to this ZIP code. The displayed ZIP value is weighted toward larger known service populations when population data is available.

4 water systems
PWSID is the public water system identifier. Data Source shows whether the hardness value comes from a treated-water report, USGS monitoring, or a local estimate; source year is shown when available.
Poplar Bluff Pws
MO4010656
Slightly Hard
114 PPMsurface water17,043 servedHigh Confidence — USGS Monitoring
Butler County Pwsd 1
MO4024070
Slightly Hard
114 PPMgroundwater11,500 servedHigh Confidence — USGS Monitoring
Butler County Pwsd 2
MO4024071
Very Hard
401 PPMgroundwater1,625 servedHigh Confidence — USGS Monitoring
Qulin Pws
MO4010670
Very Hard
401 PPMgroundwater375 servedHigh Confidence — USGS Monitoring

Nearby Zip Codes

What This Means For You

Recommendations are based on the displayed ZIP hardness reading. Confirm your tap reading before sizing or buying treatment equipment.

Know your water hardness?

If you've tested your water or have your utility's CCR report, share your reading to help us improve accuracy for Qulin, MO (63961).

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Frequently Asked Questions

Is the water hard in Qulin, MO (63961)?

The average water hardness in 63961 is 133 PPM (7.8 GPG), which is classified as moderately hard.

Do I need a water softener in 63961?

With hardness of 133 PPM, a water softener is worth considering for homes in 63961.

Is hard water in 63961 safe to drink?

Water hardness itself is a mineral-content reading, not a drinking-water safety rating. Calcium and magnesium are naturally occurring minerals, but you should check your utility's Consumer Confidence Report for contaminant and compliance information.

How many water systems serve 63961?

Zip code 63961 in Qulin, Missouri is served by 4 water systems.

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