Question 1

Is Laona Sanitary Dist water safe to drink?

Accepted Answer

Laona Sanitary Dist (PWS ID: WI7210108) has 229 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. EPA SDWIS lists this system's service population as 950 people using Groundwater sources.

Question 2

How many people does Laona Sanitary Dist serve?

Accepted Answer

EPA SDWIS reports that Laona Sanitary Dist serves 950 people (this public water system's service population, not the municipal population of Laona or any other city). It is a Local-owned system using Groundwater water sources with 442 service connections. The operator address is listed in Laona, Wisconsin.

Question 3

What type of violations does Laona Sanitary Dist have?

Accepted Answer

Laona Sanitary Dist has 229 total violations: 18 health-based violations (MCL exceedances or treatment failures), 187 monitoring/reporting violations, and 3 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.

Question 4

Has PFAS been detected in Laona Sanitary Dist water?

Accepted Answer

No PFAS testing data is available for Laona Sanitary Dist under the EPA's UCMR5 monitoring program.

Question 5

What water source does Laona Sanitary Dist use?

Accepted Answer

Laona Sanitary Dist uses Groundwater 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

Where does Laona Sanitary Dist sit among U.S. public water systems?

Accepted Answer

According to EPA SDWIS population_served among sitemap-advertised systems (serving 500+), Laona Sanitary Dist ranks #20,467 of 29,740 by people served, and #427 of 744 in Wisconsin. Ordinals use population_served DESC among systems serving 500+ (the sitemap cohort). See /methodology#corpus-placement.

Question 8

How does Laona Sanitary Dist's violation count compare nationally?

Accepted Answer

Laona Sanitary Dist has 229 recorded EPA SDWIS violations, fewer than 13% of the 29,740 public water systems serving 500 or more people nationwide (the same sitemap cohort used for the corpus-placement ranking above). 87% of that cohort has fewer violations than Laona Sanitary Dist. 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
Coliform (TCR)	MR	28	2008
Coliform (TCR)	MCL	15	2010
Consumer Confidence Rule	Other	14	2023
Revised Total Coliform Rule	MON	4	2022
Total Haloacetic Acids (HAA5)	MR	4	2022
Benzene	MR	4	1997
Toluene	MR	4	1997
Xylenes, Total	MR	4	1997
Tetrachloroethylene	MR	4	1997
1,2-Dichloropropane	MR	4	1997
Carbon tetrachloride	MR	4	1997
1,1,1-Trichloroethane	MR	4	1997
1,2-Dichloroethane	MR	4	1997
trans-1,2-Dichloroethylene	MR	4	1997
p-Dichlorobenzene	MR	4	1997
o-Dichlorobenzene	MR	4	1997
Styrene	MR	4	1997
Ethylbenzene	MR	4	1997
Trichloroethylene	MR	4	1997
1,2,4-Trichlorobenzene	MR	4	1997
cis-1,2-Dichloroethylene	MR	4	1997
1,1,2-Trichloroethane	MR	4	1997
TTHM	MR	4	2022
1,1-Dichloroethylene	MR	4	1997
DICHLOROMETHANE	MR	4	1997
Vinyl chloride	MR	4	1997
CHLOROBENZENE	MR	4	1997
Chlorine	MR	4	2008
Public Notice	Other	3	2024
Lead and Copper Rule	MR	3	1993

Laona Sanitary Dist

Laona Sanitary Dist standing, high SDWIS violation third

System Details

Violation History

Violation Count vs. the National Corpus

Population served record for Laona Sanitary Dist

Nationwide peers

Cross-state systems with comparable violation load

Cross-state systems with smaller service footprints