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 |
|---|---|---|---|
| MCL | Health-based | Archived | 1981-10-01 → 1982-09-30 |
| MR | Monitoring | Resolved | 2020-04-01 → 2020-06-30 |
| MR | Monitoring | Resolved | 2020-04-01 → 2020-06-30 |
| MR | Monitoring | Resolved | 2020-04-01 → 2020-06-30 |
| MR | Monitoring | Resolved | 2020-04-01 → 2020-06-30 |
| MR | Monitoring | Resolved | 2020-01-01 |
| MR | Monitoring | Resolved | 2020-01-01 |
| MR | Monitoring | Resolved | 2020-01-01 |
| MR | Monitoring | Resolved | 2015-07-01 → 2015-07-31 |
| MR | Monitoring | Resolved | 2015-07-01 → 2015-07-31 |
PFAS detected
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| Pfba | 0.0093 µg/L | 3/3 | 2025 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Copper | 130.95 µg/L 10% of the EPA limit 1300 µg/L
worst single sample: 155 µg/L | 14/15 | SYR4 | 2013–2019 |
| Lead | 0.0018 mg/L 12% of the EPA limit 0.0150 mg/L | 13/13 | LCR | 2025 |
| Bromodichloromethane | 10.22 µg/L No EPA limit set
worst single sample: 10.5 µg/L | 8/8 | SYR4 | 2012–2019 |
| Chloroform | 61.92 µg/L No EPA limit set
worst single sample: 67.8 µg/L | 8/8 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 22.8 µg/L No EPA limit set
worst single sample: 23.5 µg/L | 8/8 | SYR4 | 2012–2019 |
| TTHM | 71.165 µg/L 89% of the EPA limit 80 µg/L
worst single sample: 76.1 µg/L | 8/8 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 39.85 µg/L 66% of the EPA limit 60 µg/L
worst single sample: 40.2 µg/L | 8/8 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 13.575 µg/L No EPA limit set
worst single sample: 14.1 µg/L | 8/8 | SYR4 | 2012–2019 |
| Dibromochloromethane | 2.24 µg/L No EPA limit set
worst single sample: 2.36 µg/L | 7/8 | SYR4 | 2012–2019 |
| Monochloroacetic Acid | 7.294 µg/L No EPA limit set
worst single sample: 8 µg/L | 5/8 | SYR4 | 2012–2019 |
| Lead | 2.063 µg/L 14% of the EPA limit 15 µg/L
worst single sample: 2.21 µg/L | 4/15 | SYR4 | 2013–2019 |
| Dibromoacetic Acid | 1.049 µg/L No EPA limit set
worst single sample: 1.09 µg/L | 3/8 | SYR4 | 2012–2019 |
31 contaminants tested, none detected
Utility contact
Frequently asked questions about Garden Grove Water Supply
Is Garden Grove Water Supply tap water safe to drink?
EPA monitoring detected 13 contaminants in Garden Grove Water Supply'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 Garden Grove Water Supply's water?
EPA monitoring detected Copper, Lead, Bromodichloromethane, Chloroform, Dichloroacetic Acid, and others. The full list with the level and data source for each is above.
How many people does Garden Grove Water Supply serve?
Garden Grove Water Supply reports serving 179 people in Iowa, per its EPA record.
Has Garden Grove Water Supply had any water quality violations?
The EPA has 28 violations on file for Garden Grove Water Supply, of which 1 is 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.