What was found in Cedar Lake'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 |
|---|---|---|---|
| Copper | 501 µg/L 39% of the EPA limit 1300 µg/L Main supplier: CEDAR LAKE WATER WORKS · 4,600 people · 2018
Highest in the city: 780.6 µg/L — SUNSET HARBOR CONDOMINIUMS · 40 people · 2018 | 6/8 | SYR4 |
| Fluoride | 394 µg/L 9.9% of the EPA limit 4000 µg/L Main supplier: CEDAR LAKE WATER WORKS · 4,600 people · 2018
Highest in the city: 537 µg/L — CEDAR GARDENS MHP · 34 people · 2018 | 8/8 | SYR4 |
| Barium | 367.5 µg/L 18% of the EPA limit 2000 µg/L Main supplier: CEDAR LAKE WATER WORKS · 4,600 people · 2018 | 8/8 | SYR4 |
| Nitrate | 180 µg/L 1.8% of the EPA limit 10000 µg/L Highest in the city: CEDAR GARDENS MHP · 34 people · 2015 | 2/8 | SYR4 |
| Lithium | 41.5 µg/L No EPA limit set Main supplier: CEDAR LAKE WATER WORKS · 4,600 people · 2025 | 1/8 | UCMR-5 |
| Chromium | 20.275 µg/L 20% of the EPA limit 100 µg/L Main supplier: CEDAR LAKE WATER WORKS · 4,600 people · 2018
Highest in the city: 36 µg/L — FAIRWAY REGIONAL WATER DISTRICT · 210 people · 2018 | 7/8 | SYR4 |
| Total Haloacetic Acids (HAA5) | 3.84 µg/L 6.4% of the EPA limit 60 µg/L Main supplier: CEDAR LAKE WATER WORKS · 4,600 people · 2017
Highest in the city: 20.83 µg/L — FAIRWAY REGIONAL WATER DISTRICT · 210 people · 2018 | 2/8 | SYR4 |
| TTHM | 8.8 µg/L 11% of the EPA limit 80 µg/L Main supplier: CEDAR LAKE WATER WORKS · 4,600 people · 2017
Highest in the city: 20.48 µg/L — FAIRWAY REGIONAL WATER DISTRICT · 210 people · 2018 | 3/8 | SYR4 |
| Gross Alpha, Excl. Radon And U | 2.44 pCi/L 16% of the EPA limit 15 pCi/L Main supplier: CEDAR LAKE WATER WORKS · 4,600 people · 2018
Highest in the city: 12.0595 pCi/L — CEDAR LAKE BIBLE CONFERENCE GROUNDS · 150 people · 2015 | 7/8 | SYR4 |
| Lead | 4.055 µg/L 27% of the EPA limit 15 µg/L Main supplier: CEDAR LAKE WATER WORKS · 4,600 people · 2018
Highest in the city: 8.18 µg/L — LAKESHORE SUBDIVISION ASSOCIATION, INC. · 265 people · 2018 | 5/8 | SYR4 |
| Chloroform | 8.14 µg/L No EPA limit set Main supplier: CEDAR LAKE WATER WORKS · 4,600 people · 2019 | 2/8 | SYR4 |
| Selenium | 7.3 µg/L 15% of the EPA limit 50 µg/L Highest in the city: FAIRWAY REGIONAL WATER DISTRICT · 210 people · 2018 | 1/8 | SYR4 |
| Bromodichloromethane | 6.94 µg/L No EPA limit set Main supplier: CEDAR LAKE WATER WORKS · 4,600 people · 2019 | 2/8 | SYR4 |
| Dibromochloromethane | 5.34 µg/L No EPA limit set Main supplier: CEDAR LAKE WATER WORKS · 4,600 people · 2019 | 2/8 | SYR4 |
| Xylenes, Total | 2.3 µg/L 0% of the EPA limit 10000 µg/L Main supplier: CEDAR LAKE WATER WORKS · 4,600 people · 2019 | 1/8 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 2.1 µg/L 35% of the EPA limit 6 µg/L Main supplier: CEDAR LAKE WATER WORKS · 4,600 people · 2018 | 1/8 | SYR4 |
| Bromoform | 1.67 µg/L No EPA limit set Main supplier: CEDAR LAKE WATER WORKS · 4,600 people · 2019 | 1/8 | SYR4 |
| Di(2-ethylhexyl) Adipate | 0.7000 µg/L 0.2% of the EPA limit 400 µg/L Main supplier: CEDAR LAKE WATER WORKS · 4,600 people · 2018 | 1/8 | SYR4 |
| Pentachlorophenol | 0.1400 µg/L 14% of the EPA limit 1 µg/L Main supplier: CEDAR LAKE WATER WORKS · 4,600 people · 2018
Highest in the city: 0.5300 µg/L — NOBLE OAKS SUBDIVISION WATER ASSOCIATION · 70 people · 2018 | 2/8 | SYR4 |
| Mercury | 0.3200 µg/L 16% of the EPA limit 2 µg/L Highest in the city: CEDAR LAKE BIBLE CONFERENCE GROUNDS · 150 people · 2018 | 1/8 | SYR4 |
| Lead | 0.0145 mg/L 97% of the EPA limit 0.0150 mg/L Main supplier: CEDAR LAKE WATER WORKS · 4,600 people · 2027 | 8/8 | 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 Cedar Lake
| Supplier | Population served |
|---|---|
| CEDAR LAKE WATER WORKS | 4,600 |
| LAKESHORE SUBDIVISION ASSOCIATION, INC. | 265 |
| FAIRWAY REGIONAL WATER DISTRICT | 210 |
| CEDAR LAKE MOBILE HOME PARK | 200 |
| CEDAR LAKE BIBLE CONFERENCE GROUNDS | 150 |
| NOBLE OAKS SUBDIVISION WATER ASSOCIATION | 70 |
| SUNSET HARBOR CONDOMINIUMS | 40 |
| CEDAR GARDENS MHP | 34 |
Frequently asked questions about Cedar Lake tap water
Is Cedar Lake tap water safe to drink?
EPA testing detected 21 contaminants in the water serving Cedar Lake. 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 Cedar Lake?
8 public water suppliers report drinking-water monitoring for Cedar Lake, Indiana to the EPA. Each is listed above with its population served.
What contaminants are in Cedar Lake's water?
The contaminants EPA monitoring detected in Cedar Lake include Copper, Fluoride, Barium, Nitrate, Lithium. 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.