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.
327
health-based violations
433
violations on file
7
still open
| Violation | Type | Status | Period |
|---|---|---|---|
| MCL | Health-based | Unaddressed | 2026-04-01 → 2026-06-30 |
| MCL | Health-based | Unaddressed | 2026-04-01 → 2026-06-30 |
| MCL | Health-based | Archived | 2026-01-01 → 2026-03-31 |
| MCL | Health-based | Archived | 2026-01-01 → 2026-03-31 |
| MCL | Health-based | Archived | 2026-01-01 → 2026-03-31 |
| MCL | Health-based | Archived | 2025-10-01 → 2025-12-31 |
| MCL | Health-based | Archived | 2025-10-01 → 2025-12-31 |
| MCL | Health-based | Archived | 2025-10-01 → 2025-12-31 |
| MCL | Health-based | Archived | 2025-07-01 → 2025-09-30 |
| MCL | Health-based | Archived | 2025-07-01 → 2025-09-30 |
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 95th percentile of this
system's samples — over 100% is worth reading, but is not by itself a
violation. Where a single sample came in higher than that percentile, it
is noted under the bar. Formal violations are listed separately.
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 5440 µg/L 54% of the EPA limit 10000 µg/L
worst single sample: 7590 µg/L | 88/88 | SYR4 | 2012–2019 |
| 1,1-Dichloroethylene | 16.12 µg/L 230% of the EPA limit, at the 95th percentile of samples — 7 µg/L
worst single sample: 17.4 µg/L | 39/53 | SYR4 | 2012–2019 |
| Arsenic | 10.35 µg/L 103% of the EPA limit, at the 95th percentile of samples — 10 µg/L
worst single sample: 10.9 µg/L | 36/36 | SYR4 | 2012–2019 |
| Bromoform | 5.852 µg/L No EPA limit set
worst single sample: 9.73 µg/L | 29/63 | SYR4 | 2012–2019 |
| Copper | 169.5 µg/L 13% of the EPA limit 1300 µg/L
worst single sample: 172 µg/L | 23/25 | SYR4 | 2012–2017 |
| Nitrate-Nitrite | 6010 µg/L 60% of the EPA limit 10000 µg/L
worst single sample: 7590 µg/L | 21/21 | SYR4 | 2012–2015 |
| Dibromochloromethane | 3.92 µg/L No EPA limit set
worst single sample: 4.2 µg/L | 15/63 | SYR4 | 2012–2019 |
| Fluoride | 2631 µg/L 66% of the EPA limit 4000 µg/L
worst single sample: 2680 µg/L | 15/15 | SYR4 | 2012–2018 |
| Lead | 0.0011 mg/L 7.5% of the EPA limit 0.0150 mg/L | 10/10 | LCR | 2028 |
| Barium | 84.2 µg/L 4.2% of the EPA limit 2000 µg/L
worst single sample: 85 µg/L | 9/9 | SYR4 | 2012–2019 |
| Selenium | 13.42 µg/L 27% of the EPA limit 50 µg/L
worst single sample: 16.9 µg/L | 9/9 | SYR4 | 2012–2019 |
| Xylenes, Total | 86.92 µg/L 0.9% of the EPA limit 10000 µg/L
worst single sample: 138 µg/L | 9/53 | SYR4 | 2012–2019 |
| Chromium | 3.72 µg/L 3.7% of the EPA limit 100 µg/L
worst single sample: 4 µg/L | 8/9 | SYR4 | 2012–2019 |
| TTHM | 9.4615 µg/L 12% of the EPA limit 80 µg/L
worst single sample: 11.6 µg/L | 8/11 | SYR4 | 2013–2019 |
| Gross Beta Particle Activity | 17.51 pCi/L No EPA limit set
worst single sample: 18.5 pCi/L | 7/7 | SYR4 | 2012–2018 |
| Total Haloacetic Acids (HAA5) | 14.73 µg/L 25% of the EPA limit 60 µg/L
worst single sample: 16.2 µg/L | 7/10 | SYR4 | 2013–2019 |
| Monochloroacetic Acid | 13.1 µg/L No EPA limit set
worst single sample: 13.7 µg/L | 6/10 | SYR4 | 2013–2019 |
| Combined Uranium | 13.34 µg/L 44% of the EPA limit 30 µg/L
worst single sample: 13.6 µg/L | 5/5 | SYR4 | 2014–2018 |
| Gross Alpha, Excl. Radon And U | 6 pCi/L 40% of the EPA limit 15 pCi/L | 5/5 | SYR4 | 2014–2018 |
| Dibromoacetic Acid | 2.44 µg/L No EPA limit set
worst single sample: 2.5 µg/L | 4/10 | SYR4 | 2013–2019 |
| Ethylbenzene | 16.379 µg/L 2.3% of the EPA limit 700 µg/L
worst single sample: 19.1 µg/L | 4/53 | SYR4 | 2012–2019 |
| Lead | 1.85 µg/L 12% of the EPA limit 15 µg/L
worst single sample: 1.9 µg/L | 3/25 | SYR4 | 2012–2017 |
| Bromodichloromethane | 1.52 µg/L No EPA limit set | 1/63 | SYR4 | 2012–2019 |
| Cyanide | 6.89 µg/L 3.4% of the EPA limit 200 µg/L | 1/4 | SYR4 | 2014 |
| Dalapon | 9.38 µg/L 4.7% of the EPA limit 200 µg/L | 1/13 | SYR4 | 2014–2019 |
| Di(2-ethylhexyl) Phthalate | 2.6 µg/L 43% of the EPA limit 6 µg/L | 1/10 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 1.3 µg/L No EPA limit set | 1/10 | SYR4 | 2013–2019 |
| cis-1,2-Dichloroethylene | 0.5000 µg/L 0.7% of the EPA limit 70 µg/L | 1/53 | SYR4 | 2012–2019 |
51 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformCombined Radium (-226 And -228)DichloromethaneDi(2-ethylhexyl) AdipateDichloroacetic AcidDinosebEthylene DibromideEndrinHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidNitriteOxamylPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene
Utility contact
Frequently asked questions about City of Idalou
Is City of Idalou tap water safe to drink?
EPA monitoring detected 28 contaminants in City of Idalou'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 City of Idalou's water?
EPA monitoring detected Nitrate, 1,1-Dichloroethylene, Arsenic, Bromoform, Copper, and others. The full list with the level and data source for each is above.
How many people does City of Idalou serve?
City of Idalou reports serving 2,250 people in Texas, per its EPA record.
Has City of Idalou had any water quality violations?
The EPA has 433 violations on file for City of Idalou, of which 327 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.