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Counties → South Dakota

Codington County, South Dakota

Water Systems
6
Population Served
24,705
Total Violations
485
93 health-based
PFAS Detected
1
of 1 tested

Violation Analysis

100.0%
Systems with Violations
80.8
Avg Violations per System
19.2%
Health-Based Violations

Water Source Types

GW
6 systems (100%)

PFAS Contamination

1
Systems Tested
1
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

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

No violations on record (0) One or more violations (6)

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
WATERTOWN MUNICIPAL UTILITIES 23,230 10 Detected
CLARK RURAL WATER-KAMPESKA 602 129 —
FLORENCE 337 54 —
HENRY 256 67 —
SOUTH SHORE 189 117 —
WALLACE 91 108 —

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
Brown County
21 systems · 38,081 served · 1,750 violations
Lincoln County
8 systems · 35,801 served · 350 violations
Hughes County
6 systems · 27,114 served · 317 violations

Drinking Water Guides

Is Your Tap Water Safe?

How to interpret water quality reports and know when to take action.
PFAS: What You Need to Know

Health risks, EPA standards, and how to reduce PFAS exposure.
Check Your Water System

Step-by-step guide to finding and understanding your local water data.

Related Environmental Data

PlainEnviro
EPA toxic releases and pollution sources near water systems
PlainHealth
Cross-portal: mortality and health outcome data by state
PlainHazard
Natural disaster data affecting water infrastructure
PlainClimate
Climate and weather patterns impacting water supply

Frequently Asked Questions

How many water violations are in Codington County? ▼
Codington County has 485 total drinking water violations across 6 water systems, of which 93 are health-based violations. 100.0% of systems have at least one violation.
How many people get water from Codington County systems? ▼
Water systems in Codington County serve approximately 24,705 people through 6 public water systems.
Has PFAS been detected in Codington County water? ▼
Of 1 water systems tested for PFAS in Codington County, 1 had PFAS detected (100.0% detection rate).
What types of water sources supply Codington County? ▼
Water systems in Codington County use GW (6 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. 19.2% of Codington County's violations are health-based. Not all violations indicate immediate health risk, but they require corrective action.
Where does this water quality data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and UCMR5 PFAS monitoring program. SDWIS tracks violations for all public water systems regulated under the Safe Drinking Water Act.

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.

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Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainWater Editorial