What was found in Lothian'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 | 900 µg/L 9% of the EPA limit 10000 µg/L Highest in the city: LYONS CREEK ESTATES · 750 people · 2019 | 3/4 | SYR4 |
| Fluoride | 196 µg/L 4.9% of the EPA limit 4000 µg/L Main supplier: BOONES MOBILE ESTATES · 1,315 people · 2018
Highest in the city: 320 µg/L — PATUXENT MOBILE ESTATES · 450 people · 2019 | 4/4 | SYR4 |
| TTHM | 5.8 µg/L 7.2% of the EPA limit 80 µg/L Main supplier: BOONES MOBILE ESTATES · 1,315 people · 2018
Highest in the city: 10.595 µg/L — PATUXENT MOBILE ESTATES · 450 people · 2017 | 4/4 | SYR4 |
| Dibromochloromethane | 8 µg/L No EPA limit set Main supplier: BOONES MOBILE ESTATES · 1,315 people · 2016 | 1/4 | SYR4 |
| Gross Beta Particle Activity | 4.6 pCi/L No EPA limit set Main supplier: BOONES MOBILE ESTATES · 1,315 people · 2015
Highest in the city: 5.8 pCi/L — LYONS CREEK ESTATES · 750 people · 2015 | 2/4 | SYR4 |
| Chloroform | 4.4 µg/L No EPA limit set Main supplier: BOONES MOBILE ESTATES · 1,315 people · 2016 | 4/4 | SYR4 |
| Total Haloacetic Acids (HAA5) | 4.11 µg/L 6.9% of the EPA limit 60 µg/L Main supplier: BOONES MOBILE ESTATES · 1,315 people · 2018 | 4/4 | SYR4 |
| Gross Alpha, Excl. Radon And U | 3 pCi/L 20% of the EPA limit 15 pCi/L Highest in the city: LYONS CREEK ESTATES · 750 people · 2015 | 1/4 | SYR4 |
| Bromodichloromethane | 2.52 µg/L No EPA limit set Main supplier: BOONES MOBILE ESTATES · 1,315 people · 2016 | 3/4 | SYR4 |
| Dichloroacetic Acid | 2.055 µg/L No EPA limit set Main supplier: BOONES MOBILE ESTATES · 1,315 people · 2015 | 2/4 | SYR4 |
| Trichloroacetic Acid | 2.055 µg/L No EPA limit set Main supplier: BOONES MOBILE ESTATES · 1,315 people · 2015 | 2/4 | SYR4 |
| Combined Radium (-226 And -228) | 2 pCi/L 40% of the EPA limit 5 pCi/L Highest in the city: LYONS CREEK ESTATES · 750 people · 2015 | 1/4 | SYR4 |
| Lead | 0.0030 mg/L 20% of the EPA limit 0.0150 mg/L Main supplier: BOONES MOBILE ESTATES · 1,315 people · 2024
Highest in the city: 0.0100 mg/L — MARYLAND MANOR MOBILE HOME PARK · 810 people · 2024 | 4/4 | LCR |
Water suppliers serving Lothian
| Supplier | Population served |
|---|---|
| BOONES MOBILE ESTATES | 1,315 |
| MARYLAND MANOR MOBILE HOME PARK | 810 |
| LYONS CREEK ESTATES | 750 |
| PATUXENT MOBILE ESTATES | 450 |
Frequently asked questions about Lothian tap water
Is Lothian tap water safe to drink?
EPA testing detected 13 contaminants in the water serving Lothian. 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 Lothian?
4 public water suppliers report drinking-water monitoring for Lothian, Maryland to the EPA. Each is listed above with its population served.
What contaminants are in Lothian's water?
The contaminants EPA monitoring detected in Lothian include Nitrate, Fluoride, TTHM, Dibromochloromethane, Gross Beta Particle Activity. 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.