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Counties → South Dakota

Brown County, South Dakota

Water Systems
21
Population Served
38,081
Total Violations
1,750
236 health-based
PFAS Detected
2
of 2 tested

Violation Analysis

100.0%
Systems with Violations
83.3
Avg Violations per System
13.5%
Health-Based Violations

Water Source Types

SW
16 systems (76%)
GW
5 systems (24%)

PFAS Contamination

2
Systems Tested
2
PFAS Detected
100.0%
Detection Rate

PFAS (per- and polyfluoroalkyl substances) are persistent chemicals found in drinking water. The EPA has set enforceable limits for several PFAS compounds under UCMR5 monitoring.

Compliance Snapshot

Brown South Dakota water systems by violation status, EPA SDWIS records.

No violations on record (0) One or more violations (21)

Violation history is cumulative, many flagged systems have already returned to compliance. Detail pages show per-system context.

Water Systems

System Name Population Violations PFAS
Aberdeen 27,989 91 Detected
Brown-Day-Marshall RWS 5,673 6 Clean
Groton 1,380 14 -
Warner 485 29 -
Lakeside Estates 460 65 -
Country Village Park 340 72 -
Prairiewood Property Owners 300 20 -
Frederick 215 32 -
Hecla 208 62 -
Jobee Acres 108 82 -
Claremont 108 88 -
Pleasant Valley Estates 105 43 -
Long Lake Colony 100 230 -
Hutterville Colony South Dakota Inc 90 410 -
Northwood First Subdivision 90 9 -
Westport Sanitary District 88 27 -
Rolling Meadows 83 30 -
The Meadows 80 285 -
Richmond Heights Homeowners Associat 67 36 -
Stratford 57 89 -
Green Acres Association 55 30 -

Other Counties in South Dakota

Minnehaha County
15 systems · 254,737 served · 868 violations
Pennington County
157 systems · 140,305 served · 11,864 violations
Brookings County
12 systems · 41,264 served · 2,574 violations
Lincoln County
8 systems · 35,801 served · 350 violations
Hughes County
6 systems · 27,114 served · 317 violations
Lawrence County
73 systems · 25,648 served · 6,945 violations

Drinking Water Guides

Frequently Asked Questions

How many water violations are in Brown County? ▼
Brown County has 1,750 total drinking water violations across 21 water systems, of which 236 are health-based violations. 100.0% of systems have at least one violation.
How many people get water from Brown County systems? ▼
Water systems in Brown County serve approximately 38,081 people through 21 public water systems.
Has PFAS been detected in Brown County water? ▼
Of 2 water systems tested for PFAS in Brown County, 2 had PFAS detected (100.0% detection rate).
What types of water sources supply Brown County? ▼
Water systems in Brown County use SW (16 systems), GW (5 systems) as their primary water sources.
Are health-based violations serious? ▼
Health-based violations indicate that drinking water exceeded Maximum Contaminant Levels (MCLs) set by the EPA or failed treatment technique requirements. 13.5% of Brown County's violations are health-based. Not all violations indicate immediate health risk, but they require corrective action.
Data Sources & Methodology

Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). PFAS testing data from the UCMR5 monitoring program. SDWIS tracks all public water systems regulated under the Safe Drinking Water Act.

Violations are categorized as health-based (Maximum Contaminant Level exceedances, treatment technique failures) or monitoring/reporting violations. Not all violations indicate an immediate health risk.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This page draws directly on EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.