What was found in Santee'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 | 690 µg/L 6.9% of the EPA limit 10000 µg/L Highest in the city: LAKE MARION REGIONAL WATER SYS (3820003) · 25 people · 2019 | 1/3 | SYR4 |
| Nitrate-Nitrite | 460 µg/L 4.6% of the EPA limit 10000 µg/L Highest in the city: LAKE MARION REGIONAL WATER SYS (3820003) · 25 people · 2013 | 1/3 | SYR4 |
| Copper | 385.5 µg/L 30% of the EPA limit 1300 µg/L Main supplier: SANTEE TOWN OF (SC3810011) · 2,388 people · 2018 | 2/3 | SYR4 |
| Fluoride | 100 µg/L 2.5% of the EPA limit 4000 µg/L Highest in the city: LAKE MARION REGIONAL WATER SYS (3820003) · 25 people · 2019 | 1/3 | SYR4 |
| TTHM | 5.123 µg/L 6.4% of the EPA limit 80 µg/L Main supplier: SANTEE TOWN OF (SC3810011) · 2,388 people · 2019
Highest in the city: 18.78 µg/L — LAKE MARION REGIONAL WATER SYS (3820003) · 25 people · 2019 | 2/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 9.67535 µg/L 16% of the EPA limit 60 µg/L Main supplier: SANTEE TOWN OF (SC3810011) · 2,388 people · 2019
Highest in the city: 18.42 µg/L — LAKE MARION REGIONAL WATER SYS (3820003) · 25 people · 2019 | 2/3 | SYR4 |
| Lead | 17.65 µg/L 118% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: SANTEE TOWN OF (SC3810011) · 2,388 people · 2018 | 2/3 | SYR4 |
| Chloroform | 3.978 µg/L No EPA limit set Main supplier: SANTEE TOWN OF (SC3810011) · 2,388 people · 2019
Highest in the city: 12.86 µg/L — LAKE MARION REGIONAL WATER SYS (3820003) · 25 people · 2019 | 2/3 | SYR4 |
| Dichloroacetic Acid | 6.76 µg/L No EPA limit set Main supplier: SANTEE TOWN OF (SC3810011) · 2,388 people · 2019
Highest in the city: 8.15 µg/L — LAKE MARION REGIONAL WATER SYS (3820003) · 25 people · 2019 | 2/3 | SYR4 |
| Monobromoacetic Acid | 1.68299 µg/L No EPA limit set Main supplier: SANTEE TOWN OF (SC3810011) · 2,388 people · 2019
Highest in the city: 6.724 µg/L — LAKE MARION REGIONAL WATER SYS (3820003) · 25 people · 2019 | 2/3 | SYR4 |
| Bromodichloromethane | 3.9 µg/L No EPA limit set Main supplier: SANTEE TOWN OF (SC3810011) · 2,388 people · 2019
Highest in the city: 5.735 µg/L — LAKE MARION REGIONAL WATER SYS (3820003) · 25 people · 2019 | 2/3 | SYR4 |
| Dibromoacetic Acid | 1.7 µg/L No EPA limit set Main supplier: SANTEE TOWN OF (SC3810011) · 2,388 people · 2019
Highest in the city: 5.6115 µg/L — LAKE MARION REGIONAL WATER SYS (3820003) · 25 people · 2019 | 2/3 | SYR4 |
| Dibromochloromethane | 2.29 µg/L No EPA limit set Main supplier: SANTEE TOWN OF (SC3810011) · 2,388 people · 2019
Highest in the city: 5.114 µg/L — LAKE MARION REGIONAL WATER SYS (3820003) · 25 people · 2019 | 2/3 | SYR4 |
| Trichloroacetic Acid | 1.185 µg/L No EPA limit set Main supplier: SANTEE TOWN OF (SC3810011) · 2,388 people · 2019
Highest in the city: 4.83 µg/L — LAKE MARION REGIONAL WATER SYS (3820003) · 25 people · 2019 | 2/3 | SYR4 |
| Monochloroacetic Acid | 3.4 µg/L No EPA limit set Highest in the city: LAKE MARION REGIONAL WATER SYS (3820003) · 25 people · 2019 | 1/3 | SYR4 |
| Bromoform | 2.769 µg/L No EPA limit set Highest in the city: LAKE MARION REGIONAL WATER SYS (3820003) · 25 people · 2019 | 1/3 | SYR4 |
| Lead | 0.00026 mg/L 1.7% of the EPA limit 0.0150 mg/L Main supplier: SANTEE TOWN OF (SC3810011) · 2,388 people · 2024
Highest in the city: 0.0160 mg/L — MCCORDS FERRY AT LAKE MARION (SC3850004) · 21 people · 2026 | 3/3 | 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 Santee
| Supplier | Population served |
|---|---|
| SANTEE TOWN OF (SC3810011) | 2,388 |
| LAKE MARION REGIONAL WATER SYS (3820003) | 25 |
| MCCORDS FERRY AT LAKE MARION (SC3850004) | 21 |
Frequently asked questions about Santee tap water
Is Santee tap water safe to drink?
EPA testing detected 17 contaminants in the water serving Santee. 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 Santee?
3 public water suppliers report drinking-water monitoring for Santee, South Carolina to the EPA. Each is listed above with its population served.
What contaminants are in Santee's water?
The contaminants EPA monitoring detected in Santee include Nitrate, Nitrate-Nitrite, Copper, Fluoride, TTHM. 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.