Tap WaterIndex

← Illinois

Tap water quality report

Harvard Hills Water Corporation

EPA monitoring tested this supplier for 50 contaminants and detected 11. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

50
contaminants tested
11
detected
215
people served
9
health-based violations
Illinois rankingsLead in IllinoisPFAS in Illinois
Water source
Ground water
Ownership
Private
Counties served
Tazewell

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

9
health-based violations
43
violations on file
7
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2023-04-02
TT Health-based Resolved 2023-04-02
TT Health-based Resolved 2023-04-02
TT Health-based Unaddressed 2023-03-01
TT Health-based Unaddressed 2023-03-01
MCL Health-based Resolved 2007-08-01 → 2007-08-31
MCL Health-based Resolved 2007-08-01 → 2007-08-31
MCL Health-based Resolved 2007-08-01 → 2007-08-31
MCL Health-based Resolved 2007-08-01 → 2007-08-31
Other Monitoring Resolved 2025-07-12

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Lead
0.0035 mg/L 23%
of the EPA limit 0.0150 mg/L
 16/16 LCR 2025
Copper
890 µg/L 68%
of the EPA limit 1300 µg/L
 15/15 SYR4 2013–2019
Lead
7.6 µg/L 51%
of the EPA limit 15 µg/L
 9/15 SYR4 2013–2019
Arsenic
3.9 µg/L 39%
of the EPA limit 10 µg/L
 3/3 SYR4 2012–2018
Barium
330 µg/L 17%
of the EPA limit 2000 µg/L
 3/3 SYR4 2012–2018
Chloroform
2.945 µg/L
No EPA limit set
 3/3 SYR4 2013–2017
Fluoride
1080 µg/L 27%
of the EPA limit 4000 µg/L
 3/3 SYR4 2012–2018
TTHM
2.945 µg/L 3.7%
of the EPA limit 80 µg/L
 3/3 SYR4 2013–2017
Nitrate
40 µg/L 0.4%
of the EPA limit 10000 µg/L
 2/16 SYR4 2012–2019
Cadmium
1.1 µg/L 22%
of the EPA limit 5 µg/L
 1/3 SYR4 2012–2018
Combined Radium (-226 And -228)
1.222 pCi/L 24%
of the EPA limit 5 pCi/L
 1/1 SYR4 2014
39 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-DichloropropaneAntimony, TotalBenzeneBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCyanideCarbon TetrachlorideChromiumDichloromethaneDibromoacetic AcidDibromochloromethaneDichloroacetic AcidEthylbenzeneMercuryMonobromoacetic AcidMonochloroacetic AcidNitrate-NitriteNitriteSeleniumStyreneTetrachloroethyleneThallium, TotalTolueneTotal Haloacetic Acids (HAA5)Trichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
SHIELDS, JACINDA
Phone
815-674-0544
Email
harvardhillswaterassoc@gmail.com

Frequently asked questions about Harvard Hills Water Corporation

Is Harvard Hills Water Corporation tap water safe to drink?

EPA monitoring detected 11 contaminants in Harvard Hills Water Corporation's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Harvard Hills Water Corporation's water?

EPA monitoring detected Lead, Copper, Lead, Arsenic, Barium, and others. The full list with the level and data source for each is above.

How many people does Harvard Hills Water Corporation serve?

Harvard Hills Water Corporation reports serving 215 people in Illinois, per its EPA record.

Has Harvard Hills Water Corporation had any water quality violations?

The EPA has 43 violations on file for Harvard Hills Water Corporation, of which 9 are health-based (a contaminant limit or required treatment was breached) and 7 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.