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Elm Oak Mutual Water

EPA monitoring tested this supplier for 81 contaminants and detected 21. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

81
contaminants tested
21
detected
50
people served
442
health-based violations
Illinois rankingsLead in IllinoisPFAS in Illinois
Water source
Ground water
Ownership
Private
Counties served
Lake

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.

442
health-based violations
530
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2019-10-01 → 2019-12-31
MCL Health-based Resolved 2019-10-01 → 2019-12-31
MCL Health-based Resolved 2019-10-01 → 2019-12-31
MCL Health-based Resolved 2019-10-01 → 2019-12-31
MCL Health-based Resolved 2019-07-01 → 2019-09-30
MCL Health-based Resolved 2019-07-01 → 2019-09-30
MCL Health-based Resolved 2019-07-01 → 2019-09-30
MCL Health-based Resolved 2019-07-01 → 2019-09-30
MCL Health-based Resolved 2019-07-01 → 2019-09-30
MCL Health-based Resolved 2019-07-01 → 2019-09-30

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
Combined Radium (-226 And -228)
19.5 pCi/L 390%
of the EPA limit, in the worst sample — 5 pCi/L
 23/43 SYR4 2012–2019
Copper
317 µg/L 24%
of the EPA limit 1300 µg/L
 16/20 SYR4 2012–2018
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 14/14 LCR 2024
Gross Alpha, Excl. Radon And U
26.7 pCi/L 178%
of the EPA limit, in the worst sample — 15 pCi/L
 13/13 SYR4 2012–2019
Combined Uranium
0.9983 µg/L 3.3%
of the EPA limit 30 µg/L
 10/13 SYR4 2012–2019
Lead
9.5 µg/L 63%
of the EPA limit 15 µg/L
 6/20 SYR4 2012–2018
Barium
367 µg/L 18%
of the EPA limit 2000 µg/L
 4/4 SYR4 2012–2018
Fluoride
1410 µg/L 35%
of the EPA limit 4000 µg/L
 4/4 SYR4 2012–2018
Chloroform
1.43 µg/L
No EPA limit set
 3/3 SYR4 2018–2019
TTHM
7.32 µg/L 9.2%
of the EPA limit 80 µg/L
 3/3 SYR4 2018–2019
Bromodichloromethane
2.1 µg/L
No EPA limit set
 2/3 SYR4 2018–2019
Dibromoacetic Acid
0.9100 µg/L
No EPA limit set
 2/2 SYR4 2018–2019
Dibromochloromethane
2.84 µg/L
No EPA limit set
 2/3 SYR4 2018–2019
Dichloroacetic Acid
1.8 µg/L
No EPA limit set
 2/2 SYR4 2018–2019
Nitrate
430 µg/L 4.3%
of the EPA limit 10000 µg/L
 2/20 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
6.49 µg/L 11%
of the EPA limit 60 µg/L
 2/2 SYR4 2018–2019
Arsenic
1.3 µg/L 13%
of the EPA limit 10 µg/L
 1/4 SYR4 2012–2018
Bromoform
1.18 µg/L
No EPA limit set
 1/3 SYR4 2018–2019
Monochloroacetic Acid
2.84 µg/L
No EPA limit set
 1/2 SYR4 2018–2019
Nitrate-Nitrite
430 µg/L 4.3%
of the EPA limit 10000 µg/L
 1/4 SYR4 2012–2018
Trichloroacetic Acid
0.9420 µg/L
No EPA limit set
 1/2 SYR4 2018–2019
60 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
LACKO, ANTHONY A.
Phone
847-362-8646

Frequently asked questions about Elm Oak Mutual Water

Is Elm Oak Mutual Water tap water safe to drink?

EPA monitoring detected 21 contaminants in Elm Oak Mutual Water'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 Elm Oak Mutual Water's water?

EPA monitoring detected Combined Radium (-226 And -228), Copper, Lead, Gross Alpha, Excl. Radon And U, Combined Uranium, and others. The full list with the level and data source for each is above.

How many people does Elm Oak Mutual Water serve?

Elm Oak Mutual Water reports serving 50 people in Illinois, per its EPA record.

Has Elm Oak Mutual Water had any water quality violations?

The EPA has 530 violations on file for Elm Oak Mutual Water, of which 442 are health-based (a contaminant limit or required treatment was breached) and 0 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.