TapScore USA

CREST HILL EPA Drinking Water Compliance Record

TapScore summarizes EPA Safe Drinking Water Information System records for public water system IL1970250. It does not test household tap water or determine whether water is currently safe to drink.

D

Several health-based records

TapScore compliance-history grade

31 EPA violation records from July 1, 2021 through June 30, 2026

1 classified as health-based

System details

PWSID
IL1970250
Population served
21,169
Water source
Ground Water
Owner type
Local Government
State
Illinois
EPA region
5
All historical records
81
Not marked resolved
48

How to read this grade

Grade D means “Several health-based records” under TapScore's published method. It is a comparison of recent EPA compliance records, not an EPA grade, laboratory result, health recommendation, or guarantee of present water quality.

EPA contaminant categories in violation records

EPA categoryClassificationRecords
Coliform (TCR)Health-based record11
Lead and Copper RuleHealth-based record8
Revised Total Coliform RuleMonitoring/reporting record8
ChlorineMonitoring/reporting record7
Consumer Confidence RuleMonitoring/reporting record4
Carbon tetrachlorideMonitoring/reporting record3
ChloramineMonitoring/reporting record3
Public NoticeMonitoring/reporting record3
Tetrachloroethylene (PCE)Monitoring/reporting record2
1,1-DichloroethyleneMonitoring/reporting record2
1,2-DichloroethaneMonitoring/reporting record2
1,1,1-TrichloroethaneMonitoring/reporting record2
Total Trihalomethanes (TTHMs)Monitoring/reporting record2
CyanideMonitoring/reporting record2
DiquatMonitoring/reporting record2
Haloacetic Acids (HAA5)Monitoring/reporting record2
BenzeneMonitoring/reporting record2
SeleniumMonitoring/reporting record1
BerylliumMonitoring/reporting record1
ThalliumMonitoring/reporting record1

Showing the 20 categories with the most records out of 32 categories in this system's history.

These are compliance records associated with an EPA contaminant code, not current tap-water test results or proof that a substance is presently detected.

Violation history by year

2025
6
2024
4
2023
3
2022
15
2021
4
2019
5
2018
4
2016
6
2013
1
2005
1

Historical counts may include resolved records. For current notices and local sampling results, check the utility's latest Consumer Confidence Report and your state drinking-water agency.

Reported service area

Cities served

CREST HILL

ZIP codes served

60403

County: Will