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Community Water System · PWS SD4602042

Huron Colony

Huron, South Dakota 57350 - drinking water served from groundwater sources to 95 people, tracked in EPA SDWIS and UCMR5.

95
People served
779
EPA violations
15
Health-based
Untested
UCMR5 result

The verdict

EPA records 779 drinking-water violations at Huron Colony, 2% of them health-based - above the South Dakota per-system average.

779
Total EPA violations on record
2%
Health-based (MCL / treatment failure)
95
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Huron Colony

Huron Colony is a private-owned community water system that delivers drinking water to 95 residents in Huron, South Dakota (Beadle County) through 18 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 779 total violations for this system , of which 15 (2%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 726 monitoring and reporting violations are on file. The most recent violation on record dates to 2022.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 110 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across South Dakota, EPA tracks 654 public water systems serving 915,901 people, with 56,254 cumulative violations and 8,399 health-based violations on record. About 92% of systems in the state carry at least one violation, and state-wide the average per system is 86 violations. Statewide, 42 of 49 UCMR5-tested systems have reported PFAS detections (85.7%).

Huron Colony's 779 violations sit above the South Dakota average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
95
Total Violations
779
Health-Based Violations
15
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
18
County
Beadle
School/Daycare
No
MCL Violations
15
Monitoring Violations
726
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 110 2012
Lead and Copper Rule MR 27 2019
cis-1,2-Dichloroethylene MR 21 2006
Vinyl chloride MR 21 2006
Tetrachloroethylene MR 21 2006
Ethylbenzene MR 21 2006
DICHLOROMETHANE MR 21 2006
1,2,4-Trichlorobenzene MR 21 2006
1,1-Dichloroethylene MR 21 2006
Carbon tetrachloride MR 21 2006
CHLOROBENZENE MR 21 2006
Styrene MR 21 2006
o-Dichlorobenzene MR 21 2006
trans-1,2-Dichloroethylene MR 21 2006
1,2-Dichloropropane MR 21 2006
p-Dichlorobenzene MR 21 2006
1,2-Dichloroethane MR 21 2006
Toluene MR 21 2006
Benzene MR 21 2006
Trichloroethylene MR 21 2006
1,1,1-Trichloroethane MR 21 2006
1,1,2-Trichloroethane MR 21 2006
Xylenes, Total MR 21 2006
Public Notice Other 18 2007
Coliform (TCR) MCL 12 2013
E. COLI MR 9 2022
Consumer Confidence Rule Other 6 2008
Arsenic MR 6 2003
Cadmium MR 6 2003
Chromium MR 6 2003

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Huron Colony.

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID SD4602042 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

South Dakota Drinking Water Authority

South Dakota's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find SD regulator via EPA SDWIS

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2022 E. COLI MR 9 SDWIS / SD4602042 / 3014
2022 Revised Total Coliform Rule MCL 3 SDWIS / SD4602042 / 8000
2019 Lead and Copper Rule MR 27 SDWIS / SD4602042 / 5000
2013 Coliform (TCR) MCL 12 SDWIS / SD4602042 / 3100
2012 Coliform (TCR) MR 110 SDWIS / SD4602042 / 3100
2008 Consumer Confidence Rule Other 6 SDWIS / SD4602042 / 7000
2007 Public Notice Other 18 SDWIS / SD4602042 / 7500
2006 cis-1,2-Dichloroethylene MR 21 SDWIS / SD4602042 / 2380
2006 Vinyl chloride MR 21 SDWIS / SD4602042 / 2976
2006 Tetrachloroethylene MR 21 SDWIS / SD4602042 / 2987
2006 Ethylbenzene MR 21 SDWIS / SD4602042 / 2992
2006 DICHLOROMETHANE MR 21 SDWIS / SD4602042 / 2964
2006 1,2,4-Trichlorobenzene MR 21 SDWIS / SD4602042 / 2378
2006 1,1-Dichloroethylene MR 21 SDWIS / SD4602042 / 2977
2006 Carbon tetrachloride MR 21 SDWIS / SD4602042 / 2982

How Huron Colony Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric Huron Colony South Dakota avg Federal benchmark
Total violations 779 86 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 15 12.8 Indicates a contaminant exceeded a federal MCL
PFAS detection None 85.7% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 95 1,400 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 654 regulated public water systems in South Dakota.

Federal MCL reference, Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Huron Colony water safe to drink? ▼
Huron Colony (PWS ID: SD4602042) has 779 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 95 people using Groundwater sources.
How many people does Huron Colony serve? ▼
Huron Colony serves 95 people in Huron, South Dakota. It is a Private-owned system using Groundwater water sources with 18 service connections.
What type of violations does Huron Colony have? ▼
Huron Colony has 779 total violations: 15 health-based violations (MCL exceedances or treatment failures), 726 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Huron Colony water? ▼
No PFAS testing data is available for Huron Colony under the EPA's UCMR5 monitoring program.
What water source does Huron Colony use? ▼
Huron Colony uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

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 system's figures are rendered directly from 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.