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City water profile

Box Elder water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Box Elder, South Dakota.

Median indexed hardness

570PPM

2 indexed ZIPs

Range 525.5–615 PPM

State comparison
54 PPM above
State hardness rank
#74 of 222
Matched utilities
2
Active health records
0

City summary

What the indexed records say

Box Elder has 2 published ZIP profiles across Meade County. The indexed median is 570 PPM, compared with 516 PPM across South Dakota.

Among the 222 South Dakotacities with an indexed median, Box Elder ranks #74from highest to lowest. Across all 246 state ZIP profiles, available estimates run from 20.5to 1330 PPM.

The 525.5–615 PPM range shows how much the available ZIP estimates vary within the city label.

Hardness distribution

How local ZIP estimates compare

Soft0 ZIPs
Moderately hard0 ZIPs
Hard0 ZIPs
Very hard2 ZIPs

2 of 2 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance
6.5 miles
Profiles with evidence
2/2

Confidence labels

High: 0Moderate: 2Low: 0

Observation window: Jan 5, 2016 to Mar 18, 2026.

ZIP directory

Water reports in Box Elder

Open a ZIP for site-level provenance and measurements.

ZIP code

57706

Very Hard

615 PPM

Nearest site
2.3 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

57719

Very Hard

525.5 PPM

Nearest site
6.5 mi
Confidence
Moderate

View full ZIP evidence →

Public water systems

Utilities associated with this city

Ellsworth Afb

PWSID SD4680004

Surface water
System population served
9,100
Last reported
Jun 17, 2026

EPA SDWIS explicitly lists this ZIP in the system's served geography.

Box Elder

PWSID SD4600046

Groundwater
System population served
14,000
Last reported
Jun 17, 2026

EPA SDWIS explicitly lists this ZIP in the system's served geography.

Compliance history

What EPA records show

No active health-based violation appears among the associated systems in the represented EPA reporting quarter. This does not mean every contaminant was tested at every tap.

RecordSystemPeriodStatus
Gross Alpha, Excl. Radon and USD4600046Jul 1, 2025Archived · health-based
Gross Alpha, Excl. Radon and USD4600046Apr 1, 2025Archived · health-based
Combined Radium (-226 and -228)SD4600046Jul 1, 2024Resolved · health-based
Gross Alpha, Excl. Radon and USD4600046Apr 1, 2022Resolved · health-based
Combined Radium (-226 and -228)SD4600046Apr 1, 2022Resolved · health-based
Gross Alpha, Excl. Radon and USD4600046Jan 1, 2022Resolved · health-based
Combined Radium (-226 and -228)SD4600046Jan 1, 2022Resolved · health-based
Gross Alpha, Excl. Radon and USD4600046Oct 1, 2021Resolved · health-based
Combined Radium (-226 and -228)SD4600046Oct 1, 2021Resolved · health-based

Practical next steps

Move from index to evidence

  1. 1. Open your ZIP. Check distance, dates, confidence, and the associated utility.
  2. 2. Read the current CCR. Confirm source water, detections, limits, ranges, and notices.
  3. 3. Test the tap when needed. Confirm health concerns or treatment sizing with the right method.

Questions people ask

About water in Box Elder

Is the water hard?

The indexed city median is 570 PPM. Open the ZIP report to verify the distance and confidence behind that estimate.

Is the tap water safe?

Compliance history is utility-wide and cannot guarantee conditions at every tap. Check current notices and test when address-specific evidence is needed.

Do I need treatment?

Choose treatment only after confirming the problem at the property. A softener targets hardness; contaminant treatment requires a matching, verified performance claim.