States › South Dakota › Minnehaha County

Minnehaha County, SD Water Quality

Water quality data for 13 public water systems serving Minnehaha County, South Dakota — based on EPA SDWIS enforcement records, lead testing results, and health-based violation history.

📅 2026 Report 🔄 Data updated 2026 Q2 📍 13 water systems · 17 cities
✅
Excellent — All Systems Performing Well

Water quality across the county is outstanding with minimal violations and very low lead levels.

A

Minnehaha County Earns a A

Minnehaha County: 17 communities across 13 water systems. 100.0% have no open violations.

  • Median lead where detected: 1.00 ppb
  • 16 communities with a lead detection, 1 reporting none detected
  • 0 communities with PFAS above the federal limit
  • 4 with significant inspection deficiencies
  • 100.0% of communities have no open violations
1 ppb
Median Lead Level
County-wide, 90th percentile
13
Water Systems
Active CWS & NTNCWS
100%
Violation-Free
No active violations on record
How we grade counties: MyWaterIQ uses EPA SDWIS enforcement data — actual MCL violations and lead test results — not the aspirational MCLG targets used by some sites. A grade reflects real compliance history, not theoretical risk. Learn more →

Cities by Water Quality

⭐ Best Performing
  • Sioux Falls
    3.00 ppb
    No federal limits exceeded on record
    A
  • Hartford
    1.00 ppb
    No federal limits exceeded on record
    B
  • Baltic
    1.00 ppb
    No federal limits exceeded on record
    B
  • Colton
    1.00 ppb
    No federal limits exceeded on record
    B
  • Renner Corner
    1.00 ppb
    No federal limits exceeded on record
    A
⚠ Needs Attention
  • Pine Lakes Addition
    2.00 ppb
    Copper above the 1,300 ppb action level
    C
  • Anderson
    2.00 ppb
    Copper above the 1,300 ppb action level
    B
  • Valley Springs
    Not detected
    1 significant inspection deficiency
    B
  • Brandon
    1.00 ppb
    Copper above the 1,300 ppb action level
    A
  • Garretson
    1.00 ppb
    Copper above the 1,300 ppb action level
    B
County Lead Level — Median 1 ppb
Based on most recent 90th percentile lead tests across all reporting systems
0 ppb5 ppb10 ppb15 ppb
County median: 1 ppb — 6.7% of the federal action level
Systems by Lead Level
Under 5 ppb
16
No Data
1

All Cities in Minnehaha County

Sioux Falls 3.00 ppb A
Brandon 1.00 ppb A
Dell Rapids 2.00 ppb A
Hartford 1.00 ppb B
Baltic 1.00 ppb B
Garretson 1.00 ppb B
Crooks 1.00 ppb B
Colton 1.00 ppb B
Humboldt 1.00 ppb B
Valley Springs Not detected B
Renner Corner 1.00 ppb A
Pine Lakes Addition 2.00 ppb C
Meadow View Addition 1.00 ppb A
Anderson 2.00 ppb B
Sherman 1.00 ppb A
Lyons 1.00 ppb A
Rowena 1.00 ppb A
Showing 17 cities
No active violations Active violations

About Minnehaha County Drinking Water

Minnehaha County is served by 13 water systems covering 17 communities. No community here has an open violation on record.

Of the communities reporting lead results, 16 recorded a detection, with a median of 1.00 ppb — 7% of the federal action level. 1 reported none detected, which means below the laboratory limit rather than an absence of lead.

No community here has PFAS above the federal limit on record. State inspectors recorded significant deficiencies at 4 of them.

Frequently Asked Questions

Is Minnehaha County tap water safe to drink?▼
No community in Minnehaha County has an open violation on record. No community has PFAS above the federal limit on record.
What is the lead level in Minnehaha County?▼
Among communities with a detection the median is 1.00 ppb, 7% of the 15 ppb action level. 1 reported none detected and 0 reported no result.
How many water systems serve Minnehaha County?▼
13 community water systems serve 17 communities here.
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