Question 1

Is Cedar Grove Waterworks water safe to drink?

Accepted Answer

Cedar Grove Waterworks (PWS ID: WI4600437) has 84 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. EPA SDWIS lists this system's service population as 2,213 people using Groundwater sources.

Question 2

How many people does Cedar Grove Waterworks serve?

Accepted Answer

EPA SDWIS reports that Cedar Grove Waterworks serves 2,213 people (this public water system's service population, not the municipal population of Cedar Grove or any other city). It is a Local-owned system using Groundwater water sources with 819 service connections. The operator address is listed in Cedar Grove, Wisconsin.

Question 3

What type of violations does Cedar Grove Waterworks have?

Accepted Answer

Cedar Grove Waterworks has 84 total violations: 5 health-based violations (MCL exceedances or treatment failures), 76 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.

Question 4

Has PFAS been detected in Cedar Grove Waterworks water?

Accepted Answer

No PFAS testing data is available for Cedar Grove Waterworks under the EPA's UCMR5 monitoring program.

Question 5

What water source does Cedar Grove Waterworks use?

Accepted Answer

Cedar Grove Waterworks 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 Cedar Grove Waterworks sit among U.S. public water systems?

Accepted Answer

According to EPA SDWIS population_served among sitemap-advertised systems (serving 500+), Cedar Grove Waterworks ranks #12,796 of 29,740 by people served, and #254 of 744 in Wisconsin. Ordinals use population_served DESC among systems serving 500+ (the sitemap cohort). See /methodology#corpus-placement.

Question 8

How does Cedar Grove Waterworks's violation count compare nationally?

Accepted Answer

Cedar Grove Waterworks has 84 recorded EPA SDWIS violations, fewer than 30% of the 29,740 public water systems serving 500 or more people nationwide (the same sitemap cohort used for the corpus-placement ranking above). 69% of that cohort has fewer violations than Cedar Grove Waterworks. 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
Lead and Copper Rule	MR	20	2014
Total Haloacetic Acids (HAA5)	MR	5	2014
Coliform (TCR)	MCL	5	1997
TTHM	MR	5	2014
2,3,7,8-TCDD	MR	4	1999
1,2,4-Trichlorobenzene	MR	2	1996
Xylenes, Total	MR	2	1996
1,1-Dichloroethylene	MR	2	1996
1,1,1-Trichloroethane	MR	2	1996
Carbon tetrachloride	MR	2	1996
Tetrachloroethylene	MR	2	1996
CHLOROBENZENE	MR	2	1996
cis-1,2-Dichloroethylene	MR	2	1996
trans-1,2-Dichloroethylene	MR	2	1996
Trichloroethylene	MR	2	1996
Vinyl chloride	MR	2	1996
1,2-Dichloroethane	MR	2	1996
Styrene	MR	2	1996
DICHLOROMETHANE	MR	2	1996
Benzene	MR	2	1996
Toluene	MR	2	1996
Ethylbenzene	MR	2	1996
p-Dichlorobenzene	MR	2	1996
1,1,2-Trichloroethane	MR	2	1996
o-Dichlorobenzene	MR	2	1996
1,2-Dichloropropane	MR	2	1996

Cedar Grove Waterworks

Cedar Grove Waterworks standing, high SDWIS violation third

System Details

Violation History

Violation Count vs. the National Corpus

SDWIS compliance record for Cedar Grove Waterworks

Nationwide peers

Cross-state systems with comparable violation load

Cross-state systems near this population served