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Tap water quality report

Macomb

EPA monitoring tested this supplier for 109 contaminants and detected 24. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

109
contaminants tested
24
detected
15,051
people served
123
health-based violations
Illinois rankingsLead in IllinoisPFAS in Illinois
Water source
Surface water
Ownership
Local government
Counties served
McDonough

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.

123
health-based violations
170
violations on file
1
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2024-07-01 → 2024-09-30
MCL Health-based Resolved 2024-07-01 → 2024-09-30
MCL Health-based Resolved 2024-07-01 → 2024-09-30
MCL Health-based Resolved 2024-07-01 → 2024-09-30
MCL Health-based Resolved 2024-07-01 → 2024-09-30
MCL Health-based Resolved 2024-07-01 → 2024-09-30
MCL Health-based Resolved 2024-04-01 → 2024-06-30
MCL Health-based Resolved 2024-04-01 → 2024-06-30
MCL Health-based Resolved 2024-04-01 → 2024-06-30
MCL Health-based Resolved 2024-04-01 → 2024-06-30

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
Nitrate
7500 µg/L 75%
of the EPA limit 10000 µg/L
 370/370 SYR4 2012–2019
Bromodichloromethane
51 µg/L
No EPA limit set
 132/132 SYR4 2012–2019
Chloroform
56 µg/L
No EPA limit set
 132/132 SYR4 2012–2019
TTHM
168 µg/L 210%
of the EPA limit, in the worst sample — 80 µg/L
 132/132 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
40 µg/L 67%
of the EPA limit 60 µg/L
 132/132 SYR4 2012–2019
Bromoform
49 µg/L
No EPA limit set
 131/132 SYR4 2012–2019
Dibromoacetic Acid
15 µg/L
No EPA limit set
 131/132 SYR4 2012–2019
Dibromochloromethane
67 µg/L
No EPA limit set
 131/132 SYR4 2012–2019
Trichloroacetic Acid
16 µg/L
No EPA limit set
 108/132 SYR4 2012–2019
Dichloroacetic Acid
22 µg/L
No EPA limit set
 92/132 SYR4 2012–2019
Copper
160 µg/L 12%
of the EPA limit 1300 µg/L
 60/60 SYR4 2014–2017
Monobromoacetic Acid
5.47 µg/L
No EPA limit set
 29/132 SYR4 2012–2019
Lead
0.0043 mg/L 29%
of the EPA limit 0.0150 mg/L
 19/19 LCR 2025
Barium
23 µg/L 1.2%
of the EPA limit 2000 µg/L
 9/9 SYR4 2012–2019
Fluoride
2510 µg/L 63%
of the EPA limit 4000 µg/L
 9/9 SYR4 2012–2019
Lead
520 µg/L 3467%
of the EPA limit, in the worst sample — 15 µg/L
 8/60 SYR4 2014–2017
Arsenic
1.6 µg/L 16%
of the EPA limit 10 µg/L
 4/9 SYR4 2012–2019
Combined Radium (-226 And -228)
18.8 pCi/L 376%
of the EPA limit, in the worst sample — 5 pCi/L
 4/4 SYR4 2012–2019
Lithium
45.5 µg/L
No EPA limit set
 4/4 UCMR-5 2024
Nitrate-Nitrite
4500 µg/L 45%
of the EPA limit 10000 µg/L
 3/3 SYR4 2012–2018
Selenium
5.8 µg/L 12%
of the EPA limit 50 µg/L
 2/9 SYR4 2012–2019
Atrazine
0.3200 µg/L 11%
of the EPA limit 3 µg/L
 1/17 SYR4 2012–2019
Chromium
9.5 µg/L 9.5%
of the EPA limit 100 µg/L
 1/9 SYR4 2012–2019
Monochloroacetic Acid
9.8 µg/L
No EPA limit set
 1/132 SYR4 2012–2019
85 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
OHRTMANN, ALICE
Phone
309-833-2821
Email
aohrtmann@cityofmacomb.com

Frequently asked questions about Macomb

Is Macomb tap water safe to drink?

EPA monitoring detected 24 contaminants in Macomb'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 Macomb's water?

EPA monitoring detected Nitrate, Bromodichloromethane, Chloroform, TTHM, Total Haloacetic Acids (HAA5), and others. The full list with the level and data source for each is above.

How many people does Macomb serve?

Macomb reports serving 15,051 people in Illinois, per its EPA record.

Has Macomb had any water quality violations?

The EPA has 170 violations on file for Macomb, of which 123 are health-based (a contaminant limit or required treatment was breached) and 1 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.