PlainWater
States → South Dakota

LEAD-DEADWOOD SANITARY DISTRICT

PWS ID: SD4600190 · DEADWOOD, South Dakota 57732

LEAD-DEADWOOD SANITARY DISTRICT serves 0 people in DEADWOOD, South Dakota using Surface Water water sources. It has 95 recorded EPA violations, including 13 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: LEAD-DEADWOOD SANITARY DISTRICT

LEAD-DEADWOOD SANITARY DISTRICT is a local-owned community water system that delivers drinking water to 0 residents in DEADWOOD, South Dakota (Lawrence County) through 2 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 95 total violations for this system , of which 13 (14%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 74 monitoring and reporting violations are on file. The most recent violation on record dates to 2009.

The most frequently cited contaminant at this system is Surface Water Treatment Rule, recorded in 13 violations (TT, 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. LEAD-DEADWOOD SANITARY DISTRICT's 95 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
0
Total Violations
95
Health-Based Violations
13
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
2
County
Lawrence
School/Daycare
No
MCL Violations
0
Monitoring Violations
74
Treatment Tech Violations
13

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Surface Water Treatment Rule TT 13 1995
Nitrate MR 5 2003
Coliform (TCR) MR 4 1995
LASSO MR 2 2002
Heptachlor MR 2 2002
Benzo(a)pyrene MR 2 2002
Methoxychlor MR 2 2002
Di(2-ethylhexyl) adipate MR 2 2002
Hexachlorocyclopentadiene MR 2 2002
HEXACHLOROBENZENE MR 2 2002
Toxaphene MR 2 2002
Simazine MR 2 2002
Carbofuran MR 2 2002
OXAMYL MR 2 2002
Dalapon MR 2 2002
Dinoseb MR 2 2002
2,4,5-TP MR 2 2002
Pentachlorophenol MR 2 2002
Picloram MR 2 2002
ETHYLENE DIBROMIDE MR 2 2002
Endothall MR 2 2002
Glyphosate MR 2 2002
Diquat MR 2 2002
TTHM MR 2 2009
BHC-GAMMA MR 2 2002
2,4-D MR 2 2002
Endrin MR 2 2002
Heptachlor epoxide MR 2 2002
Atrazine MR 2 2002
Di(2-ethylhexyl) phthalate MR 2 2002

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 LEAD-DEADWOOD SANITARY DISTRICT.

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 SD4600190 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
2009 TTHM MR 2 SDWIS / SD4600190 / 2950
2009 Total Haloacetic Acids (HAA5) MR 2 SDWIS / SD4600190 / 2456
2003 Nitrate MR 5 SDWIS / SD4600190 / 1040
2002 LASSO MR 2 SDWIS / SD4600190 / 2051
2002 Heptachlor MR 2 SDWIS / SD4600190 / 2065
2002 Benzo(a)pyrene MR 2 SDWIS / SD4600190 / 2306
2002 Methoxychlor MR 2 SDWIS / SD4600190 / 2015
2002 Di(2-ethylhexyl) adipate MR 2 SDWIS / SD4600190 / 2035
2002 Hexachlorocyclopentadiene MR 2 SDWIS / SD4600190 / 2042
2002 HEXACHLOROBENZENE MR 2 SDWIS / SD4600190 / 2274
2002 Toxaphene MR 2 SDWIS / SD4600190 / 2020
2002 Simazine MR 2 SDWIS / SD4600190 / 2037
2002 Carbofuran MR 2 SDWIS / SD4600190 / 2046
2002 OXAMYL MR 2 SDWIS / SD4600190 / 2036
2002 Dalapon MR 2 SDWIS / SD4600190 / 2031

How LEAD-DEADWOOD SANITARY DISTRICT Compares

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

Metric LEAD-DEADWOOD SANITARY DISTRICT South Dakota avg Federal benchmark
Total violations 95 86 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 13 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 0 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 LEAD-DEADWOOD SANITARY DISTRICT water safe to drink? ▼
LEAD-DEADWOOD SANITARY DISTRICT (PWS ID: SD4600190) has 95 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 0 people using Surface Water sources.
How many people does LEAD-DEADWOOD SANITARY DISTRICT serve? ▼
LEAD-DEADWOOD SANITARY DISTRICT serves 0 people in DEADWOOD, South Dakota. It is a Local-owned system using Surface Water water sources with 2 service connections.
What type of violations does LEAD-DEADWOOD SANITARY DISTRICT have? ▼
LEAD-DEADWOOD SANITARY DISTRICT has 95 total violations: 13 health-based violations (MCL exceedances or treatment failures), 74 monitoring/reporting violations, and 13 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in LEAD-DEADWOOD SANITARY DISTRICT water? ▼
No PFAS testing data is available for LEAD-DEADWOOD SANITARY DISTRICT under the EPA's UCMR5 monitoring program.
What water source does LEAD-DEADWOOD SANITARY DISTRICT use? ▼
LEAD-DEADWOOD SANITARY DISTRICT uses Surface Water 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.

Explore PlainWater

Water in South Dakota

All systems in state
All States

Water quality by state
Contaminants

PFAS & other pollutants
Guides

Understanding water quality

Related Data for South Dakota

Environmental Data → Natural Hazards → Air Quality → Healthcare Access → Climate Data →
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.

Related

Browse all → | Rankings →
Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by Kiznis Studio Editorial