Water System Report SD

Minnehaha Community Water Corporation

EPA ID: SD4600432 ยท 13,435 people served ยท 17 ZIP codes

ZipCheckup's reading of EPA SDWIS for Minnehaha Community Water Corporation (SD4600432): no EPA violations recorded in the last five years. EPA data: Minnehaha Community Water Corporation - zero violations, five years, 13,435 served.

Data: EPA SDWIS

C ยท 67
Avg Safety Score
13,435
People Served
17
ZIP Codes Served
0
Violations (5yr)
Groundwater
Water Source
0.001 mg/L
Max Lead Level
Zone 1
Radon Risk ยท High
0
Contaminants Flagged
$280K
Median Home Value in Service Area

Service Area Map

Coverage area for Minnehaha Community Water Corporation Source: EPA SDWIS service area boundaries.

Service area boundary - Grade C

Service Area Demographics

$98,156
Median Household Income
185,370
Service Area Population
29%
Disadvantaged Population
41th
Poverty Percentile
33th
Energy Burden Percentile
47%
Pre-1986 Housing

The Minnehaha Community Water Corporation serves a community with a median household income of $98,156 and an estimated 185,370 residents across its service area. Approximately 47% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.

๐Ÿ’ง Where Does Your Water Come From?

Groundwater

Minnehaha Community Water Corporation's water is pumped from underground aquifers. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.

Moderate Risk
Source Contamination Risk
64th
Wastewater Discharge Proximity
9th
Superfund Site Proximity

Wastewater Proximity Note: This service area ranks in the 64th percentile nationally for proximity to wastewater discharge points.

Infrastructure Risk

42 yr
Avg Pipe Age
Copper
Pipe Material
27 yr
Est. Remaining Life
Moderate Wear
Decay Status
Installed 61% of expected lifespan used End of life

PFAS Detected in Service Area

PFAS ("forever chemicals") have been detected in water serving this system's area. 2 detections recorded.

Health concern: PFAS are linked to cancer, thyroid disease, immune suppression, and developmental effects. They do not break down naturally.
Recommended filter: Reverse osmosis (RO) or activated carbon filters certified for PFAS removal. Find the right filter โ†’

Comparable Water Systems

Similar-sized systems in South Dakota

By Water District
13,320 people
0 violations
Spearfish
13,803 people
0 violations
Box Elder
14,000 people
B 9 violations
Pierre
14,091 people
C 0 violations
Huron
14,263 people
0 violations

Estimated Remediation Costs

Average estimated costs across ZIP codes served by this system

Radon Mitigation Flood Insurance Water Filtration PFAS Treatment
Radon Mitigation $1,200
Flood Insurance $1,094
Water Filtration $88
PFAS Treatment $59
Total Estimated Cost $2,441

Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.

Cost of Inaction

If water quality issues in this service area are not addressed, the estimated financial impact per household is:

PFAS Exposure - Lifetime Cost $1,000

Per person (emerging research est.)

Estimated Cumulative Cost Per Household

5 years
$165
10 years
$330
20 years
$660

Compare: Estimated remediation cost is $2,441 (one-time) vs. $330 in estimated inaction costs over 10 years.

Estimates based on published EPA, CDC, and peer-reviewed research. Individual costs vary by household size, property, and health factors. These are conservative lower-bound estimates intended for awareness, not financial advice.

System Overview

Minnehaha Community Water Corporation (EPA ID: SD4600432) is a community water system in South Dakota that serves approximately 13,435 people from groundwater sources.

This system provides water to 17 ZIP codes across 13 communities.

ZIP-Area Home Safety Context: C (67/100)

This is the average Home Safety Score for 8 of 17 service-area ZIP codes with all required score domains observed. It is not a grade for the water utility.

Model 4.0.0 uses SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the UCMR 5 PFAS MCL screen, EPA radon zone, and annual EPA AirData AQI across three equally weighted domains. Missing required evidence suppresses the score.

Violation History

No accepted violation records in the 2021-2026 window - The accepted EPA ECHO 2026Q2 snapshot contains zero violation records for this system whose record year falls from 2021 through 2026, inclusive. This is not a tap-water safety guarantee.

Lead & Copper

EPA Lead and Copper Rule evidence attributed directly to this water system:

Lead Level Exceeds Action Level Sample Date
0.001 mg/L No N/A

No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.

Radon Risk in Service Area

Dominant radon zone for ZIP codes served by this system: Zone 1 (High Risk)

The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.

Need help with your water quality?

Typical cost: Water test: typically $20โ€“$50 (DIY kit) ยท Professional inspection: $150โ€“$400

Find the Right Water Filter

Free tip: Let cold water run for 2 minutes before drinking โ€” this helps flush lead from your pipes.

ZIP Codes Served

Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by SD or modeled from parcel and building-footprint data.

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Minnehaha Community Water Corporation (SD4600432) on EPA.gov.

Frequently Asked Questions

Is Minnehaha Community Water Corporation water safe to drink?

The accepted 2026Q2 ECHO snapshot contains zero violation records for Minnehaha Community Water Corporation in the inclusive 2021-2026 record-year window. This is a compliance-record finding, not a guarantee about water at a specific tap.

How many people does Minnehaha Community Water Corporation serve?

Minnehaha Community Water Corporation serves approximately 13,435 people across 17 ZIP codes in South Dakota.

Where does Minnehaha Community Water Corporation get its water?

The primary water source is groundwater.

Federal UCMR5 PFAS Monitoring: Tested Clean

This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). No PFAS compounds were detected.

Samples collected
116

Current MCL reflects the lowest state-enforceable limit (NYS 10 ppt for PFOA/PFOS, effective August 2020). The federal final MCL of 4 ppt for PFOA/PFOS (EPA April 2024 rule) is not enforceable until April 2029. Detections above 4 ppt but below 10 ppt are below current MCL but above the future federal limit.

Source: U.S. EPA UCMR5 (Unregulated Contaminant Monitoring Rule, 5th cycle) โ€” per-system federal sampling, 2023โ€“2025. EPA UCMR5 monitoring program โ†’

Understand PFAS health context and filtration โ†’

How Water Systems Appear in Rankings

Water systems are evaluated by violation history, contaminant detections, and service population. Larger systems with more service connections appear in more rankings.

Frequently Asked Questions

Is water from Minnehaha Community Water Corporation safe to drink?
Minnehaha Community Water Corporation has a C safety grade based on 0 recorded violations. Some contaminants may exceed EPA limits - independent testing is recommended.
Should I use a water filter?
Minnehaha Community Water Corporation meets EPA standards, but a water filter can reduce trace contaminants below detectable levels for added peace of mind.
How many people does Minnehaha Community Water Corporation serve?
Minnehaha Community Water Corporation serves approximately 13,435 people with drinking water across 17 ZIP codes.
What is Minnehaha Community Water Corporation's water source?
Minnehaha Community Water Corporation draws water from groundwater sources. Source type affects which contaminants are most likely to be present.
Is there lead in Minnehaha Community Water Corporation's water?
The maximum detected lead level is 0.001 mg/L. This is within EPA action level guidelines.
What is the demographic profile of Minnehaha Community Water Corporation's service area?
The Minnehaha Community Water Corporation service area has a median household income of $98,156. Demographic data is sourced from the U.S. Census Bureau and EPA EJScreen.
Where does Minnehaha Community Water Corporation get its water?
Minnehaha Community Water Corporation's water is pumped from underground aquifers. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table. Based on available data, the source contamination risk is moderate.

How to cite this page

APA ZipCheckup. (n.d.). Minnehaha Community Water Corporation, SD: Serves 13K People. https://zipcheckup.com/water-system/sd4600432/
BibTeX
@misc{zipcheckup-water-system-sd4600432,
  author = {{ZipCheckup}},
  title  = {{Minnehaha Community Water Corporation, SD: Serves 13K People}},
  year   = {n.d.},
  url    = {https://zipcheckup.com/water-system/sd4600432/}
}

What You Can Do

1

Test your water

Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter โ†’

2

Check your specific ZIP code

Water quality can vary within a system. View nearest ZIP report โ†’

3

Contact your utility

Minnehaha Community Water Corporation (EPA ID: SD4600432) - request the latest Consumer Confidence Report or ask about specific contaminants.

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