Compliance record
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 |
|---|---|---|---|---|
| Lead | 40.025 µg/L 267% of the EPA limit, at the 95th percentile of samples — 15 µg/L
worst single sample: 59 µg/L | 66/116 | SYR4 | 2012–2019 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 22/22 | LCR | 2023 |
| Nitrate-Nitrite | 620 µg/L 6.2% of the EPA limit 10000 µg/L | 16/16 | SYR4 | 2012–2019 |
| Chloroform | 15.965 µg/L No EPA limit set
worst single sample: 20.41 µg/L | 15/15 | SYR4 | 2012–2019 |
| TTHM | 68.421 µg/L 86% of the EPA limit 80 µg/L
worst single sample: 90.59 µg/L | 15/15 | SYR4 | 2012–2019 |
| Copper | 75.97 µg/L 5.8% of the EPA limit 1300 µg/L
worst single sample: 106 µg/L | 14/104 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 4.96 µg/L No EPA limit set
worst single sample: 5.18 µg/L | 12/15 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 9.823 µg/L 16% of the EPA limit 60 µg/L
worst single sample: 11 µg/L | 12/15 | SYR4 | 2012–2019 |
| Bromodichloromethane | 23.8195 µg/L No EPA limit set
worst single sample: 27.12 µg/L | 8/15 | SYR4 | 2012–2019 |
| Dibromochloromethane | 25.265 µg/L No EPA limit set
worst single sample: 27.98 µg/L | 7/15 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 4.6125 µg/L No EPA limit set
worst single sample: 4.79 µg/L | 6/15 | SYR4 | 2012–2019 |
| Bromoform | 13.948 µg/L No EPA limit set
worst single sample: 15.08 µg/L | 5/15 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 1.125 µg/L No EPA limit set
worst single sample: 1.13 µg/L | 2/15 | SYR4 | 2012–2019 |
| Arsenic | 3.63 µg/L 36% of the EPA limit 10 µg/L | 1/1 | SYR4 | 2016 |
| Barium | 31.2 µg/L 1.6% of the EPA limit 2000 µg/L | 1/1 | SYR4 | 2018 |
| Chromium | 1.36 µg/L 1.4% of the EPA limit 100 µg/L | 1/1 | SYR4 | 2018 |
| Combined Radium (-226 And -228) | 0.7100 pCi/L 14% of the EPA limit 5 pCi/L | 1/1 | SYR4 | 2017 |
| Combined Uranium | -0.67 µg/L -2.2% of the EPA limit 30 µg/L | 1/1 | SYR4 | 2017 |
| Fluoride | 982 µg/L 25% of the EPA limit 4000 µg/L | 1/1 | SYR4 | 2018 |
| Gross Alpha, Excl. Radon And U | 0.7000 pCi/L 4.7% of the EPA limit 15 pCi/L | 1/1 | SYR4 | 2017 |
45 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalAtrazineBhc-GammaBenzeneBeryllium, TotalChlorobenzeneCadmiumCarbon TetrachlorideChlordaneDichloromethaneDalaponDinosebEndrinEthylbenzeneHeptachlorHeptachlor EpoxideLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene
Utility contact
Frequently asked questions about Lisbon City of
Is Lisbon City of tap water safe to drink?
EPA monitoring detected 20 contaminants in Lisbon City of'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 Lisbon City of's water?
EPA monitoring detected Lead, Lead, Nitrate-Nitrite, Chloroform, TTHM, and others. The full list with the level and data source for each is above.
How many people does Lisbon City of serve?
Lisbon City of reports serving 2,154 people in North Dakota, per its EPA record.
Has Lisbon City of had any water quality violations?
The EPA has no formal drinking-water violations on file for Lisbon City of.
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.