What was found in Lodi's water
The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate | 6500 µg/L 65% of the EPA limit 10000 µg/L Main supplier: LODI WATERWORKS · 3,146 people · 2019 | 4/4 | SYR4 |
| Nitrate-Nitrite | 5475 µg/L 55% of the EPA limit 10000 µg/L Main supplier: LODI WATERWORKS · 3,146 people · 2017 | 3/4 | SYR4 |
| Fluoride | 1275.5 µg/L 32% of the EPA limit 4000 µg/L Main supplier: LODI WATERWORKS · 3,146 people · 2019 | 1/4 | SYR4 |
| Copper | 192.5 µg/L 15% of the EPA limit 1300 µg/L Main supplier: LODI WATERWORKS · 3,146 people · 2017
Highest in the city: 403.4 µg/L — CRYSTAL LAKE RV RESORT LLC · 725 people · 2018 | 4/4 | SYR4 |
| Barium | 29.5 µg/L 1.5% of the EPA limit 2000 µg/L Main supplier: LODI WATERWORKS · 3,146 people · 2017
Highest in the city: 71.08 µg/L — CRYSTAL LAKE RV RESORT LLC · 725 people · 2018 | 4/4 | SYR4 |
| Total Haloacetic Acids (HAA5) | 1.27 µg/L 2.1% of the EPA limit 60 µg/L Main supplier: LODI WATERWORKS · 3,146 people · 2019
Highest in the city: 33.296 µg/L — CRYSTAL LAKE RV RESORT LLC · 725 people · 2019 | 3/4 | SYR4 |
| Arsenic | 1.2 µg/L 12% of the EPA limit 10 µg/L Main supplier: LODI WATERWORKS · 3,146 people · 2017
Highest in the city: 32.59 µg/L — CRYSTAL LAKE RV RESORT LLC · 725 people · 2019 | 2/4 | SYR4 |
| Lead | 28.5 µg/L 190% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: LODI WATERWORKS · 3,146 people · 2017 | 4/4 | SYR4 |
| TTHM | 5.4175 µg/L 6.8% of the EPA limit 80 µg/L Main supplier: LODI WATERWORKS · 3,146 people · 2019
Highest in the city: 24.4755 µg/L — CRYSTAL LAKE RV RESORT LLC · 725 people · 2019 | 3/4 | SYR4 |
| Chloroform | 3.5 µg/L No EPA limit set Main supplier: LODI WATERWORKS · 3,146 people · 2019
Highest in the city: 22.815 µg/L — CRYSTAL LAKE RV RESORT LLC · 725 people · 2019 | 3/4 | SYR4 |
| Dichloroacetic Acid | 0.1800 µg/L No EPA limit set Main supplier: LODI WATERWORKS · 3,146 people · 2019
Highest in the city: 19.4 µg/L — CRYSTAL LAKE RV RESORT LLC · 725 people · 2019 | 3/4 | SYR4 |
| Trichloroacetic Acid | 12.3 µg/L No EPA limit set Highest in the city: CRYSTAL LAKE RV RESORT LLC · 725 people · 2019 | 1/4 | SYR4 |
| Gross Alpha, Excl. Radon And U | 6.5615 pCi/L 44% of the EPA limit 15 pCi/L Highest in the city: CRYSTAL LAKE RV RESORT LLC · 725 people · 2018 | 1/4 | SYR4 |
| Bromodichloromethane | 1.44 µg/L No EPA limit set Main supplier: LODI WATERWORKS · 3,146 people · 2019
Highest in the city: 4.46 µg/L — CRYSTAL LAKE RV RESORT LLC · 725 people · 2019 | 3/4 | SYR4 |
| Monochloroacetic Acid | 3.8 µg/L No EPA limit set Highest in the city: CRYSTAL LAKE RV RESORT LLC · 725 people · 2019 | 1/4 | SYR4 |
| Combined Radium (-226 And -228) | 1.39 pCi/L 28% of the EPA limit 5 pCi/L Main supplier: LODI WATERWORKS · 3,146 people · 2017
Highest in the city: 2.34 pCi/L — CRYSTAL LAKE RV RESORT LLC · 725 people · 2018 | 3/4 | SYR4 |
| Bromoform | 2.17 µg/L No EPA limit set Main supplier: LODI WATERWORKS · 3,146 people · 2019 | 1/4 | SYR4 |
| Dibromochloromethane | 2.125 µg/L No EPA limit set Main supplier: LODI WATERWORKS · 3,146 people · 2019 | 3/4 | SYR4 |
| Chromium | 1.98 µg/L 2% of the EPA limit 100 µg/L Main supplier: LODI WATERWORKS · 3,146 people · 2017
Highest in the city: 2.07 µg/L — HARMONY GROVE SAN DIST · 1,950 people · 2017 | 2/4 | SYR4 |
| Dibromoacetic Acid | 0.8920 µg/L No EPA limit set Main supplier: LODI WATERWORKS · 3,146 people · 2019 | 2/4 | SYR4 |
| Monobromoacetic Acid | 0.8270 µg/L No EPA limit set Highest in the city: CRYSTAL LAKE RV RESORT LLC · 725 people · 2019 | 1/4 | SYR4 |
| Antimony, Total | 0.2800 µg/L 4.7% of the EPA limit 6 µg/L Main supplier: LODI WATERWORKS · 3,146 people · 2017 | 1/4 | SYR4 |
| Lead | 0.0180 mg/L 120% above the EPA limit of 0.0150 mg/L Main supplier: LODI WATERWORKS · 3,146 people · 2022 | 4/4 | LCR |
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 the
system's samples — over 100% is worth reading, but is not by itself a
violation.
Formal violations are listed separately.
These are the utilities' own EPA-reported results, not a city-wide
average. A detection means the lab measured the
substance — it isn't the same as exceeding a legal limit. Hover a source
tag to see the EPA program and years behind each figure.
Water suppliers serving Lodi
| Supplier | Population served |
|---|---|
| LODI WATERWORKS | 3,146 |
| HARMONY GROVE SAN DIST | 1,950 |
| CRYSTAL LAKE RV RESORT LLC | 725 |
| HARMONY MOBILE MANOR | 45 |
Frequently asked questions about Lodi tap water
Is Lodi tap water safe to drink?
EPA testing detected 23 contaminants in the water serving Lodi. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.
How many water suppliers serve Lodi?
4 public water suppliers report drinking-water monitoring for Lodi, Wisconsin to the EPA. Each is listed above with its population served.
What contaminants are in Lodi's water?
The contaminants EPA monitoring detected in Lodi include Nitrate, Nitrate-Nitrite, Fluoride, Copper, Barium. The full list, with the level at the main supplier and the data source, is in the table above.
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.