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BRENTWOOD COLONY

PWS ID: SD4602066 · FAULKTON, South Dakota 57438

BRENTWOOD COLONY serves 137 people in FAULKTON, South Dakota using Groundwater water sources. It has 305 recorded EPA violations, including 23 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: BRENTWOOD COLONY

BRENTWOOD COLONY is a private-owned community water system that delivers drinking water to 137 residents in FAULKTON, South Dakota (Faulk County) through 27 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 305 total violations for this system , of which 23 (8%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 276 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 Combined Radium (-226 and -228), recorded in 20 violations (MCL, health-based). 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. BRENTWOOD COLONY's 305 violations sit above the South Dakota average. Statewide, 42 of 49 UCMR5-tested systems have reported PFAS detections (85.7%). 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
137
Total Violations
305
Health-Based Violations
23
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
27
County
Faulk
School/Daycare
No
MCL Violations
21
Monitoring Violations
276
Treatment Tech Violations
2

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Combined Radium (-226 and -228) MCL 20 1995
Combined Radium (-226 and -228) MR 15 1996
Lead and Copper Rule MR 14 2019
Gross Alpha, Excl. Radon and U MR 14 1996
Coliform (TCR) MR 6 1995
Revised Total Coliform Rule MON 6 2022
Asbestos MR 4 2020
Heptachlor MR 4 1993
Atrazine MR 4 1993
Total Polychlorinated Biphenyls (PCB) MR 4 1993
Di(2-ethylhexyl) adipate MR 4 1993
Di(2-ethylhexyl) phthalate MR 4 1993
Hexachlorocyclopentadiene MR 4 1993
HEXACHLOROBENZENE MR 4 1993
Chlordane MR 4 1993
Aldicarb sulfone MR 4 1993
Aldicarb sulfoxide MR 4 1993
Carbofuran MR 4 1993
OXAMYL MR 4 1993
Dinoseb MR 4 1993
Pentachlorophenol MR 4 1993
Picloram MR 4 1993
1,2-DIBROMO-3-CHLOROPROPANE MR 4 1993
ETHYLENE DIBROMIDE MR 4 1993
Endothall MR 4 1993
Diquat MR 4 1993
Dalapon MR 4 1993
2,4,5-TP MR 4 1993
Benzo(a)pyrene MR 4 1993
BHC-GAMMA MR 4 1993

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 BRENTWOOD 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 SD4602066 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 Revised Total Coliform Rule MON 6 SDWIS / SD4602066 / 8000
2020 Asbestos MR 4 SDWIS / SD4602066 / 1094
2019 Lead and Copper Rule MR 14 SDWIS / SD4602066 / 5000
2011 E. COLI MR 2 SDWIS / SD4602066 / 3014
2010 Stage 1 Disinfectants and Disinfection Byproducts Rule TT 2 SDWIS / SD4602066 / 0400
2006 1,1,1-Trichloroethane MR 3 SDWIS / SD4602066 / 2981
2006 Ethylbenzene MR 3 SDWIS / SD4602066 / 2992
2006 1,1,2-Trichloroethane MR 3 SDWIS / SD4602066 / 2985
2006 Xylenes, Total MR 3 SDWIS / SD4602066 / 2955
2006 1,1-Dichloroethylene MR 3 SDWIS / SD4602066 / 2977
2006 Carbon tetrachloride MR 3 SDWIS / SD4602066 / 2982
2006 CHLOROBENZENE MR 3 SDWIS / SD4602066 / 2989
2006 Styrene MR 3 SDWIS / SD4602066 / 2996
2006 o-Dichlorobenzene MR 3 SDWIS / SD4602066 / 2968
2006 trans-1,2-Dichloroethylene MR 3 SDWIS / SD4602066 / 2979

How BRENTWOOD COLONY Compares

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

Metric BRENTWOOD COLONY South Dakota avg Federal benchmark
Total violations 305 86 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 23 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 137 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
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is BRENTWOOD COLONY water safe to drink? ▼
BRENTWOOD COLONY (PWS ID: SD4602066) has 305 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 137 people using Groundwater sources.
How many people does BRENTWOOD COLONY serve? ▼
BRENTWOOD COLONY serves 137 people in FAULKTON, South Dakota. It is a Private-owned system using Groundwater water sources with 27 service connections.
What type of violations does BRENTWOOD COLONY have? ▼
BRENTWOOD COLONY has 305 total violations: 23 health-based violations (MCL exceedances or treatment failures), 276 monitoring/reporting violations, and 2 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in BRENTWOOD COLONY water? ▼
No PFAS testing data is available for BRENTWOOD COLONY under the EPA's UCMR5 monitoring program.
What water source does BRENTWOOD COLONY use? ▼
BRENTWOOD 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.

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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.

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