What was found in Greensboro'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 | 5368 µg/L 54% of the EPA limit 10000 µg/L Highest in the city: CANDY CREEK ESTATES · 99 people · 2019 | 18/29 | SYR4 |
| Nitrate-Nitrite | 4785 µg/L 48% of the EPA limit 10000 µg/L Highest in the city: CANDY CREEK ESTATES · 99 people · 2015 | 10/29 | SYR4 |
| Fluoride | 701 µg/L 18% of the EPA limit 4000 µg/L Main supplier: GREENSBORO, CITY OF · 319,588 people · 2019
Highest in the city: 1690 µg/L — NANTUCKET VILLAGE · 78 people · 2018 | 23/29 | SYR4 |
| Copper | 152.6 µg/L 12% of the EPA limit 1300 µg/L Main supplier: GREENSBORO, CITY OF · 319,588 people · 2018
Highest in the city: 1600 µg/L — CANDY CREEK ESTATES · 99 people · 2018 | 21/29 | SYR4 |
| Nitrite | 100 µg/L 10% of the EPA limit 1000 µg/L Highest in the city: CROWN MHP · 353 people · 2019 | 1/29 | SYR4 |
| TTHM | 75.8 µg/L 95% of the EPA limit 80 µg/L Main supplier: GREENSBORO, CITY OF · 319,588 people · 2019
Highest in the city: 78.2 µg/L — MONROE`S MHP · 187 people · 2019 | 14/29 | SYR4 |
| Chloroform | 63.85 µg/L No EPA limit set Main supplier: GREENSBORO, CITY OF · 319,588 people · 2019
Highest in the city: 68.4 µg/L — MONROE`S MHP · 187 people · 2019 | 6/29 | SYR4 |
| Total Haloacetic Acids (HAA5) | 57.16 µg/L 95% of the EPA limit 60 µg/L Main supplier: GREENSBORO, CITY OF · 319,588 people · 2019 | 5/29 | SYR4 |
| Dichloroacetic Acid | 32 µg/L No EPA limit set Main supplier: GREENSBORO, CITY OF · 319,588 people · 2019 | 6/29 | SYR4 |
| Trichloroacetic Acid | 29 µg/L No EPA limit set Main supplier: GREENSBORO, CITY OF · 319,588 people · 2019 | 5/29 | SYR4 |
| Lead | 25.25 µg/L 168% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: GREENSBORO, CITY OF · 319,588 people · 2018
Highest in the city: 28 µg/L — QUAIL MEADOWS SD · 68 people · 2019 | 12/29 | SYR4 |
| Barium | 26 µg/L 1.3% of the EPA limit 2000 µg/L Highest in the city: HUNTINGTON WOODS MHP · 300 people · 2019 | 1/29 | SYR4 |
| Monochloroacetic Acid | 12.15 µg/L No EPA limit set Main supplier: GREENSBORO, CITY OF · 319,588 people · 2019
Highest in the city: 26 µg/L — MONROE`S MHP · 187 people · 2019 | 2/29 | SYR4 |
| Gross Beta Particle Activity | 12.5 pCi/L No EPA limit set Highest in the city: NANTUCKET VILLAGE · 78 people · 2019 | 11/29 | SYR4 |
| Bromodichloromethane | 12 µg/L No EPA limit set Main supplier: GREENSBORO, CITY OF · 319,588 people · 2019 | 6/29 | SYR4 |
| Monobromoacetic Acid | 8.1 µg/L No EPA limit set Main supplier: GREENSBORO, CITY OF · 319,588 people · 2019 | 2/29 | SYR4 |
| Combined Uranium | 8.04525 µg/L 27% of the EPA limit 30 µg/L Highest in the city: HUNTCLIFF S/D · 262 people · 2019 | 8/29 | SYR4 |
| Xylenes, Total | 5.1 µg/L 0.1% of the EPA limit 10000 µg/L Highest in the city: MONTICELLO ESTATES · 201 people · 2019 | 2/29 | SYR4 |
| Gross Alpha, Excl. Radon And U | 4.8 pCi/L 32% of the EPA limit 15 pCi/L Highest in the city: ASHCROFT PARK · 175 people · 2019 | 2/29 | SYR4 |
| Combined Radium (-226 And -228) | 0.5950 pCi/L 12% of the EPA limit 5 pCi/L Main supplier: GREENSBORO, CITY OF · 319,588 people · 2015
Highest in the city: 4.275 pCi/L — NANTUCKET VILLAGE · 78 people · 2019 | 11/29 | SYR4 |
| Dibromoacetic Acid | 3.85 µg/L No EPA limit set Main supplier: GREENSBORO, CITY OF · 319,588 people · 2019 | 4/29 | SYR4 |
| Dibromochloromethane | 3 µg/L No EPA limit set Main supplier: GREENSBORO, CITY OF · 319,588 people · 2019
Highest in the city: 3.1 µg/L — CROWN MHP · 353 people · 2018 | 10/29 | SYR4 |
| Trichloroethylene | 2.285 µg/L 46% of the EPA limit 5 µg/L Highest in the city: MONROE`S MHP · 187 people · 2019 | 1/29 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 1.7 µg/L 28% of the EPA limit 6 µg/L Highest in the city: STERLING RIDGE S/D · 104 people · 2019 | 1/29 | SYR4 |
| Tetrachloroethylene | 1.68 µg/L 34% of the EPA limit 5 µg/L Highest in the city: BON AIRE ACRES · 81 people · 2019 | 1/29 | SYR4 |
| Bromoform | 1.6 µg/L No EPA limit set Highest in the city: CROWN MHP · 353 people · 2018 | 3/29 | SYR4 |
| Selenium | 1.4 µg/L 2.8% of the EPA limit 50 µg/L Highest in the city: HUNTINGTON WOODS MHP · 300 people · 2019 | 1/29 | SYR4 |
| Benzene | 1.2 µg/L 24% of the EPA limit 5 µg/L Highest in the city: MONTICELLO ESTATES · 201 people · 2019 | 1/29 | SYR4 |
| 1,2-Dichloroethane | 1.051 µg/L 21% of the EPA limit 5 µg/L Highest in the city: MONTICELLO ESTATES · 201 people · 2019 | 1/29 | SYR4 |
| 1,1-Dichloroethylene | 0.5950 µg/L 8.5% of the EPA limit 7 µg/L Highest in the city: MONROE`S MHP · 187 people · 2019 | 1/29 | SYR4 |
| Chlordane | 0.5000 µg/L 25% of the EPA limit 2 µg/L Highest in the city: MAGNOLIA WOODS · 72 people · 2019 | 1/29 | SYR4 |
| Heptachlor Epoxide | 0.1620 µg/L 81% of the EPA limit 0.2000 µg/L Highest in the city: STERLINGSHIRE S/D · 201 people · 2019 | 1/29 | SYR4 |
| Atrazine | 0.1295 µg/L 4.3% of the EPA limit 3 µg/L Highest in the city: MONROE`S MHP · 187 people · 2019 | 1/29 | SYR4 |
| PFOS | 0.0356 µg/L No EPA limit set Main supplier: GREENSBORO, CITY OF · 319,588 people · 2024 | 1/29 | UCMR-5 |
| Ethylene Dibromide | 0.0260 µg/L 52% of the EPA limit 0.0500 µg/L Highest in the city: STERLINGSHIRE S/D · 201 people · 2019 | 1/29 | SYR4 |
| PFHXS | 0.0168 µg/L No EPA limit set Main supplier: GREENSBORO, CITY OF · 319,588 people · 2024 | 1/29 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: GREENSBORO, CITY OF · 319,588 people · 2025
Highest in the city: 0.0130 mg/L — HUNTINGTON WOODS MHP · 300 people · 2025 | 27/29 | LCR |
| Pfhxa | 0.0104 µg/L No EPA limit set Main supplier: GREENSBORO, CITY OF · 319,588 people · 2024 | 1/29 | UCMR-5 |
| Pfba | 0.0100 µg/L No EPA limit set Main supplier: GREENSBORO, CITY OF · 319,588 people · 2024 | 1/29 | UCMR-5 |
| Pfpea | 0.0097 µg/L No EPA limit set Main supplier: GREENSBORO, CITY OF · 319,588 people · 2024 | 1/29 | UCMR-5 |
| 6:2 Fts | 0.0072 µg/L No EPA limit set Main supplier: GREENSBORO, CITY OF · 319,588 people · 2024 | 1/29 | UCMR-5 |
| PFOA | 0.0056 µg/L No EPA limit set Main supplier: GREENSBORO, CITY OF · 319,588 people · 2024 | 1/29 | UCMR-5 |
| PFBS | 0.0053 µg/L No EPA limit set Main supplier: GREENSBORO, CITY OF · 319,588 people · 2024 | 1/29 | UCMR-5 |
| Pfhpa | 0.0038 µg/L No EPA limit set Main supplier: GREENSBORO, CITY OF · 319,588 people · 2024 | 1/29 | UCMR-5 |
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 Greensboro
| Supplier | Population served |
|---|---|
| GREENSBORO, CITY OF | 319,588 |
| CROWN MHP | 353 |
| HUNTINGTON WOODS MHP | 300 |
| SPRINGDALE S/D | 267 |
| HUNTCLIFF S/D | 262 |
| STAFFORDSHIRE ESTATES | 254 |
| STERLINGSHIRE S/D | 201 |
| MONTICELLO ESTATES | 201 |
| MONROE`S MHP | 187 |
| ASHCROFT PARK | 175 |
| WEATHERSTONE @ OLDE FOREST S/D | 170 |
| HOLIDAY HILLS WTR SYSTEM | 135 |
| STERLINGSHIRE EAST | 132 |
| NEW CHARTWELL S/D | 125 |
| CEDAR PARK MHP | 112 |
| STERLING RIDGE S/D | 104 |
| CANDY CREEK ESTATES | 99 |
| BON AIRE ACRES | 81 |
| LAUREL ACRES | 79 |
| NANTUCKET VILLAGE | 78 |
| MAGNOLIA WOODS | 72 |
| QUAIL MEADOWS SD | 68 |
| ALAMANCE MHP LLC | 66 |
| OAK LANE MHP | 56 |
| O`HENRY MHP | 51 |
| CARRIAGE COVE S/D | 51 |
| CEDAR OAKS SOUTH S/D | 45 |
| WARD`S MHP | 41 |
| COUNTRYSIDE S/D | 38 |
Frequently asked questions about Greensboro tap water
Is Greensboro tap water safe to drink?
EPA testing detected 44 contaminants in the water serving Greensboro. 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 Greensboro?
29 public water suppliers report drinking-water monitoring for Greensboro, North Carolina to the EPA. Each is listed above with its population served.
What contaminants are in Greensboro's water?
The contaminants EPA monitoring detected in Greensboro include Nitrate, Nitrate-Nitrite, Fluoride, Copper, Nitrite. 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.