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.
| Violation | Type | Status | Period |
|---|---|---|---|
| MR | Monitoring | Resolved | 2025-08-01 → 2025-08-31 |
| MR | Monitoring | Resolved | 2025-08-01 → 2025-08-31 |
| MR | Monitoring | Resolved | 2025-08-01 → 2025-08-31 |
| MR | Monitoring | Resolved | 2025-07-01 → 2025-09-30 |
| MR | Monitoring | Resolved | 2025-07-01 → 2025-09-30 |
| MR | Monitoring | Resolved | 2025-07-01 → 2025-09-30 |
| MR | Monitoring | Resolved | 2023-10-01 → 2023-12-31 |
| MR | Monitoring | Resolved | 2023-10-01 → 2023-12-31 |
| MR | Monitoring | Resolved | 2023-10-01 → 2023-12-31 |
| MR | Monitoring | Resolved | 2023-10-01 → 2023-12-31 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Chlorite | 490 µg/L 49% of the EPA limit 1000 µg/L
worst single sample: 1540 µg/L | 266/267 | SYR4 | 2012–2019 |
| Chloroform | 44.84 µg/L No EPA limit set
worst single sample: 65.5 µg/L | 32/32 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 20.785 µg/L No EPA limit set
worst single sample: 22.1 µg/L | 32/32 | SYR4 | 2012–2019 |
| TTHM | 53.105 µg/L 66% of the EPA limit 80 µg/L
worst single sample: 84.1 µg/L | 32/32 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 26.215 µg/L 44% of the EPA limit 60 µg/L
worst single sample: 28.8 µg/L | 32/32 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 5.25 µg/L No EPA limit set
worst single sample: 6.4 µg/L | 31/32 | SYR4 | 2012–2019 |
| Bromodichloromethane | 11.1 µg/L No EPA limit set
worst single sample: 14.9 µg/L | 30/32 | SYR4 | 2012–2019 |
| Dibromochloromethane | 4.4 µg/L No EPA limit set
worst single sample: 4.7 µg/L | 28/32 | SYR4 | 2012–2019 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 14/14 | LCR | 2025 |
| Atrazine | 0.5025 µg/L 17% of the EPA limit 3 µg/L
worst single sample: 0.5300 µg/L | 12/32 | SYR4 | 2012–2019 |
| Arsenic | 1.08 µg/L 11% of the EPA limit 10 µg/L
worst single sample: 1.12 µg/L | 9/9 | SYR4 | 2012–2019 |
| Barium | 26.42 µg/L 1.3% of the EPA limit 2000 µg/L
worst single sample: 30.1 µg/L | 9/9 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 1.62 µg/L No EPA limit set
worst single sample: 1.7 µg/L | 9/32 | SYR4 | 2012–2019 |
| Fluoride | 903.95 µg/L 23% of the EPA limit 4000 µg/L
worst single sample: 919 µg/L | 8/8 | SYR4 | 2012–2019 |
| Nitrate | 130 µg/L 1.3% of the EPA limit 10000 µg/L | 6/16 | SYR4 | 2012–2019 |
| Lead | 41.06 µg/L 274% of the EPA limit, at the 95th percentile of samples — 15 µg/L
worst single sample: 42.2 µg/L | 4/71 | SYR4 | 2012–2019 |
| Simazine | 0.5305 µg/L 13% of the EPA limit 4 µg/L
worst single sample: 0.5500 µg/L | 4/32 | SYR4 | 2012–2019 |
| Monochloroacetic Acid | 2.58 µg/L No EPA limit set
worst single sample: 2.6 µg/L | 3/32 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 128.5 µg/L 1.3% of the EPA limit 10000 µg/L
worst single sample: 130 µg/L | 3/8 | SYR4 | 2012–2019 |
| Copper | 227 µg/L 17% of the EPA limit 1300 µg/L | 1/71 | SYR4 | 2012–2019 |
| Combined Radium (-226 And -228) | 0.2600 pCi/L 5.2% of the EPA limit 5 pCi/L | 1/1 | SYR4 | 2014 |
| Di(2-ethylhexyl) Phthalate | 2.5 µg/L 42% of the EPA limit 6 µg/L | 1/32 | SYR4 | 2012–2019 |
57 contaminants tested, none detected
Utility contact
Frequently asked questions about Rend Lake Inter-City Water
Is Rend Lake Inter-City Water tap water safe to drink?
EPA monitoring detected 22 contaminants in Rend Lake Inter-City 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 Rend Lake Inter-City Water's water?
EPA monitoring detected Chlorite, Chloroform, Dichloroacetic Acid, TTHM, Total Haloacetic Acids (HAA5), and others. The full list with the level and data source for each is above.
How many people does Rend Lake Inter-City Water serve?
Rend Lake Inter-City Water reports serving 3,650 people in Illinois, per its EPA record.
Has Rend Lake Inter-City Water had any water quality violations?
The EPA has 21 violations on file for Rend Lake Inter-City Water, of which 0 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.