Question 1

Is Lead-Deadwood Sanitary District water safe to drink?

Accepted Answer

Lead-Deadwood Sanitary District (PWS ID: SD4600190) has 95 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. EPA SDWIS lists this system's service population as 0 people using Surface Water sources.

Question 2

How many people does Lead-Deadwood Sanitary District serve?

Accepted Answer

EPA SDWIS reports that Lead-Deadwood Sanitary District serves 0 people (this public water system's service population, not the municipal population of Deadwood or any other city). It is a Local-owned system using Surface Water water sources with 2 service connections. The operator address is listed in Deadwood, South Dakota.

Question 3

What type of violations does Lead-Deadwood Sanitary District have?

Accepted Answer

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.

Question 4

Has PFAS been detected in Lead-Deadwood Sanitary District water?

Accepted Answer

No PFAS testing data is available for Lead-Deadwood Sanitary District under the EPA's UCMR5 monitoring program.

Question 5

What water source does Lead-Deadwood Sanitary District use?

Accepted Answer

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.

Question 6

Where does this data come from?

Accepted Answer

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.

Question 7

How does Lead-Deadwood Sanitary District's violation count compare nationally?

Accepted Answer

Lead-Deadwood Sanitary District has 95 recorded EPA SDWIS violations, fewer than 28% of the 29,740 public water systems serving 500 or more people nationwide (the same sitemap cohort used for the corpus-placement ranking above). 72% of that cohort has fewer violations than Lead-Deadwood Sanitary District. A system can have zero recorded violations and still be actively monitored, and a high violation count often reflects a system that reports thoroughly, not necessarily one with worse water.

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

Lead-Deadwood Sanitary District

Lead-Deadwood Sanitary District standing, high SDWIS violation third

System Details

Violation History

Violation Count vs. the National Corpus

Population served record for Lead-Deadwood Sanitary District

Nationwide peers

Cross-state systems with comparable violation load