Question 1

Is Corning Muni Water Department water safe to drink?

Accepted Answer

Corning Muni Water Department (PWS ID: IA0220075) has 893 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. EPA SDWIS lists this system's service population as 1,735 people using Surface Water sources.

Question 2

How many people does Corning Muni Water Department serve?

Accepted Answer

EPA SDWIS reports that Corning Muni Water Department serves 1,735 people (this public water system's service population, not the municipal population of Corning or any other city). It is a Local-owned system using Surface Water water sources with 1,001 service connections. The operator address is listed in Corning, Iowa.

Question 3

What type of violations does Corning Muni Water Department have?

Accepted Answer

Corning Muni Water Department has 893 total violations: 8 health-based violations (MCL exceedances or treatment failures), 516 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 Corning Muni Water Department water?

Accepted Answer

No PFAS testing data is available for Corning Muni Water Department under the EPA's UCMR5 monitoring program.

Question 5

What water source does Corning Muni Water Department use?

Accepted Answer

Corning Muni Water Department 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

Where does Corning Muni Water Department sit among U.S. public water systems?

Accepted Answer

According to EPA SDWIS population_served among sitemap-advertised systems (serving 500+), Corning Muni Water Department ranks #14,756 of 29,740 by people served, and #222 of 545 in Iowa. Ordinals use population_served DESC among systems serving 500+ (the sitemap cohort). See /methodology#corpus-placement.

Question 8

How does Corning Muni Water Department's violation count compare nationally?

Accepted Answer

Corning Muni Water Department has 893 recorded EPA SDWIS violations, fewer than 1% of the 29,740 public water systems serving 500 or more people nationwide (the same sitemap cohort used for the corpus-placement ranking above). 99% of that cohort has fewer violations than Corning Muni Water Department. 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
Toluene	MR	40	1994
Ethylbenzene	MR	28	1993
cis-1,2-Dichloroethylene	MR	24	1993
p-Dichlorobenzene	MR	24	1993
1,1-Dichloroethylene	MR	24	1993
1,2-Dichloroethane	MR	24	1993
Carbon tetrachloride	MR	24	1993
Trichloroethylene	MR	24	1993
Tetrachloroethylene	MR	24	1993
CHLOROBENZENE	MR	24	1993
Xylenes, Total	MR	24	1993
trans-1,2-Dichloroethylene	MR	24	1993
1,1,1-Trichloroethane	MR	24	1993
1,1,2-Trichloroethane	MR	24	1993
Benzene	MR	24	1993
1,2-Dichloropropane	MR	24	1993
DICHLOROMETHANE	MR	24	1993
o-Dichlorobenzene	MR	24	1993
Styrene	MR	23	1993
Coliform (TCR)	MR	15	2009
Nitrate	MR	8	2024
TTHM	MR	5	2013
Chlorite	MCL	5	2016
Total Haloacetic Acids (HAA5)	MR	5	2013
Interim Enhanced Surface Water Treatment Rule	MR	4	2010
Chlorine	MR	4	2009
Surface Water Treatment Rule	TT	3	2016
Public Notice	Other	3	2016

Corning Muni Water Department

Corning Muni Water Department standing, high SDWIS violation third

System Details

Violation History

Violation Count vs. the National Corpus

SDWIS compliance record for Corning Muni Water Department

Nationwide peers

Cross-state systems with comparable violation load

Cross-state systems near this population served