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Community Water System · PWS SD4600416

Lourie Lane Homeowners Assoc

Spearfish, South Dakota 57783 - drinking water served from groundwater sources to 75 people, tracked in EPA SDWIS and UCMR5.

75
People served
361
EPA violations
14
Health-based
Untested
UCMR5 result

The verdict

EPA records 361 drinking-water violations at Lourie Lane Homeowners Assoc, 4% of them health-based - above the South Dakota per-system average.

361
Total EPA violations on record
4%
Health-based (MCL / treatment failure)
75
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Lourie Lane Homeowners Assoc

Lourie Lane Homeowners Assoc is a private-owned community water system that delivers drinking water to 75 residents in Spearfish, South Dakota (Lawrence County) through 33 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 361 total violations for this system , of which 14 (4%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 331 monitoring and reporting violations are on file. The most recent violation on record dates to 2020.

The most frequently cited contaminant at this system is Tetrachloroethylene, recorded in 20 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%).

Lourie Lane Homeowners Assoc's 361 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
75
Total Violations
361
Health-Based Violations
14
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
33
County
Lawrence
School/Daycare
No
MCL Violations
9
Monitoring Violations
331
Treatment Tech Violations
5

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Tetrachloroethylene MR 20 1997
Vinyl chloride MR 18 2008
cis-1,2-Dichloroethylene MR 14 1997
Ethylbenzene MR 14 1997
DICHLOROMETHANE MR 14 1997
1,2,4-Trichlorobenzene MR 14 1997
1,1,2-Trichloroethane MR 14 1997
Xylenes, Total MR 14 1997
1,1-Dichloroethylene MR 14 1997
Carbon tetrachloride MR 14 1997
CHLOROBENZENE MR 14 1997
1,2-Dichloropropane MR 14 1997
Benzene MR 14 1997
p-Dichlorobenzene MR 14 1997
1,2-Dichloroethane MR 14 1997
Trichloroethylene MR 14 1997
Styrene MR 14 1997
o-Dichlorobenzene MR 14 1997
Toluene MR 14 1997
1,1,1-Trichloroethane MR 14 1997
trans-1,2-Dichloroethylene MR 14 1997
Coliform (TCR) MR 12 2002
Coliform (TCR) MCL 9 2008
Consumer Confidence Rule Other 4 2004
E. COLI MR 4 2020
Public Notice Other 3 2003
Asbestos MR 3 1993
Nitrate MR 3 1997
Revised Total Coliform Rule MON 3 2018
Revised Total Coliform Rule TT 3 2020

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 Lourie Lane Homeowners Assoc.

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 SD4600416 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
2020 E. COLI MR 4 SDWIS / SD4600416 / 3014
2020 Revised Total Coliform Rule TT 3 SDWIS / SD4600416 / 8000
2020 Groundwater Rule TT 2 SDWIS / SD4600416 / 0700
2019 Groundwater Rule Other 2 SDWIS / SD4600416 / 0700
2018 Revised Total Coliform Rule MON 3 SDWIS / SD4600416 / 8000
2008 Vinyl chloride MR 18 SDWIS / SD4600416 / 2976
2008 Coliform (TCR) MCL 9 SDWIS / SD4600416 / 3100
2004 Consumer Confidence Rule Other 4 SDWIS / SD4600416 / 7000
2003 Public Notice Other 3 SDWIS / SD4600416 / 7500
2002 Coliform (TCR) MR 12 SDWIS / SD4600416 / 3100
1997 Tetrachloroethylene MR 20 SDWIS / SD4600416 / 2987
1997 cis-1,2-Dichloroethylene MR 14 SDWIS / SD4600416 / 2380
1997 Ethylbenzene MR 14 SDWIS / SD4600416 / 2992
1997 DICHLOROMETHANE MR 14 SDWIS / SD4600416 / 2964
1997 1,2,4-Trichlorobenzene MR 14 SDWIS / SD4600416 / 2378

How Lourie Lane Homeowners Assoc Compares

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

Metric Lourie Lane Homeowners Assoc South Dakota avg Federal benchmark
Total violations 361 86 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 14 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 75 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 Lourie Lane Homeowners Assoc water safe to drink? ▼
Lourie Lane Homeowners Assoc (PWS ID: SD4600416) has 361 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 75 people using Groundwater sources.
How many people does Lourie Lane Homeowners Assoc serve? ▼
Lourie Lane Homeowners Assoc serves 75 people in Spearfish, South Dakota. It is a Private-owned system using Groundwater water sources with 33 service connections.
What type of violations does Lourie Lane Homeowners Assoc have? ▼
Lourie Lane Homeowners Assoc has 361 total violations: 14 health-based violations (MCL exceedances or treatment failures), 331 monitoring/reporting violations, and 5 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Lourie Lane Homeowners Assoc water? ▼
No PFAS testing data is available for Lourie Lane Homeowners Assoc under the EPA's UCMR5 monitoring program.
What water source does Lourie Lane Homeowners Assoc use? ▼
Lourie Lane Homeowners Assoc 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.