What was found in ZIP 70633
The level at this ZIP's main supplier, the highest level anywhere in it, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Fluoride | 300 µg/L 7.5% of the EPA limit 4000 µg/L Main supplier: CALCASIEU PARISH WW DISTRICT NO 1 · 20,837 people · 2019
Highest in the ZIP: 525 µg/L — LAWCO - DEQUINCY WATER SYSTEM · 5,370 people · 2019 | 3/3 | SYR4 |
| Copper | 300 µg/L 23% of the EPA limit 1300 µg/L Main supplier: CALCASIEU PARISH WW DISTRICT NO 1 · 20,837 people · 2019
Highest in the ZIP: 500 µg/L — LAWCO - DEQUINCY WATER SYSTEM · 5,370 people · 2019 | 3/3 | SYR4 |
| Barium | 170 µg/L 8.5% of the EPA limit 2000 µg/L Main supplier: CALCASIEU PARISH WW DISTRICT NO 1 · 20,837 people · 2019
Highest in the ZIP: 189 µg/L — LAWCO - DEQUINCY WATER SYSTEM · 5,370 people · 2019 | 2/3 | SYR4 |
| TTHM | 35.07 µg/L 44% of the EPA limit 80 µg/L Main supplier: CALCASIEU PARISH WW DISTRICT NO 1 · 20,837 people · 2019
Highest in the ZIP: 44.82 µg/L — CALCASIEU PARISH WW DISTRICT 7 · 4,791 people · 2019 | 3/3 | SYR4 |
| Nitrate-Nitrite | 35 µg/L 0.4% of the EPA limit 10000 µg/L Highest in the ZIP: LAWCO - DEQUINCY WATER SYSTEM · 5,370 people · 2019 | 1/3 | SYR4 |
| Lithium | 18.4 µg/L No EPA limit set Main supplier: CALCASIEU PARISH WW DISTRICT NO 1 · 20,837 people · 2025 | 2/3 | UCMR-5 |
| Lead | 8.1 µg/L 54% of the EPA limit 15 µg/L Main supplier: CALCASIEU PARISH WW DISTRICT NO 1 · 20,837 people · 2019
Highest in the ZIP: 17.5 µg/L — LAWCO - DEQUINCY WATER SYSTEM · 5,370 people · 2019 | 3/3 | SYR4 |
| Dibromochloromethane | 15.958 µg/L No EPA limit set Main supplier: CALCASIEU PARISH WW DISTRICT NO 1 · 20,837 people · 2019 | 3/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 12.042 µg/L 20% of the EPA limit 60 µg/L Main supplier: CALCASIEU PARISH WW DISTRICT NO 1 · 20,837 people · 2019
Highest in the ZIP: 15.89 µg/L — CALCASIEU PARISH WW DISTRICT 7 · 4,791 people · 2019 | 3/3 | SYR4 |
| Bromodichloromethane | 8.815 µg/L No EPA limit set Main supplier: CALCASIEU PARISH WW DISTRICT NO 1 · 20,837 people · 2019
Highest in the ZIP: 15.577 µg/L — CALCASIEU PARISH WW DISTRICT 7 · 4,791 people · 2019 | 3/3 | SYR4 |
| Chloroform | 3.46 µg/L No EPA limit set Main supplier: CALCASIEU PARISH WW DISTRICT NO 1 · 20,837 people · 2019
Highest in the ZIP: 14.357 µg/L — CALCASIEU PARISH WW DISTRICT 7 · 4,791 people · 2019 | 3/3 | SYR4 |
| Arsenic | 1.07 µg/L 11% of the EPA limit 10 µg/L Main supplier: CALCASIEU PARISH WW DISTRICT NO 1 · 20,837 people · 2019
Highest in the ZIP: 8.2 µg/L — LAWCO - DEQUINCY WATER SYSTEM · 5,370 people · 2019 | 3/3 | SYR4 |
| Dichloroacetic Acid | 4.137 µg/L No EPA limit set Main supplier: CALCASIEU PARISH WW DISTRICT NO 1 · 20,837 people · 2019
Highest in the ZIP: 7.16 µg/L — CALCASIEU PARISH WW DISTRICT 7 · 4,791 people · 2019 | 3/3 | SYR4 |
| Monochloroacetic Acid | 6.7855 µg/L No EPA limit set Main supplier: CALCASIEU PARISH WW DISTRICT NO 1 · 20,837 people · 2019 | 3/3 | SYR4 |
| Dibromoacetic Acid | 6.625 µg/L No EPA limit set Main supplier: CALCASIEU PARISH WW DISTRICT NO 1 · 20,837 people · 2019 | 3/3 | SYR4 |
| Bromoform | 6.29 µg/L No EPA limit set Main supplier: CALCASIEU PARISH WW DISTRICT NO 1 · 20,837 people · 2019 | 3/3 | SYR4 |
| Trichloroacetic Acid | 3 µg/L No EPA limit set Main supplier: CALCASIEU PARISH WW DISTRICT NO 1 · 20,837 people · 2019
Highest in the ZIP: 5.19 µg/L — CALCASIEU PARISH WW DISTRICT 7 · 4,791 people · 2019 | 3/3 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 3.482 µg/L 58% of the EPA limit 6 µg/L Main supplier: CALCASIEU PARISH WW DISTRICT NO 1 · 20,837 people · 2017 | 3/3 | SYR4 |
| Gross Beta Particle Activity | 2.086 pCi/L No EPA limit set Main supplier: CALCASIEU PARISH WW DISTRICT NO 1 · 20,837 people · 2019
Highest in the ZIP: 2.249 pCi/L — LAWCO - DEQUINCY WATER SYSTEM · 5,370 people · 2019 | 3/3 | SYR4 |
| Monobromoacetic Acid | 0.9775 µg/L No EPA limit set Main supplier: CALCASIEU PARISH WW DISTRICT NO 1 · 20,837 people · 2019
Highest in the ZIP: 2 µg/L — LAWCO - DEQUINCY WATER SYSTEM · 5,370 people · 2019 | 2/3 | SYR4 |
| Combined Radium (-226 And -228) | 0.8320 pCi/L 17% of the EPA limit 5 pCi/L Main supplier: CALCASIEU PARISH WW DISTRICT NO 1 · 20,837 people · 2019
Highest in the ZIP: 1.581 pCi/L — LAWCO - DEQUINCY WATER SYSTEM · 5,370 people · 2019 | 2/3 | SYR4 |
| Asbestos | 0.1900 MFL 2.7% of the EPA limit 7 MFL Highest in the ZIP: LAWCO - DEQUINCY WATER SYSTEM · 5,370 people · 2019 | 1/3 | SYR4 |
| Lead | 0.0020 mg/L 13% of the EPA limit 0.0150 mg/L Main supplier: CALCASIEU PARISH WW DISTRICT NO 1 · 20,837 people · 2023 | 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.
Water suppliers serving ZIP 70633
| Supplier | State | Population served |
|---|---|---|
| CALCASIEU PARISH WW DISTRICT NO 1 | LA | 20,837 |
| LAWCO - DEQUINCY WATER SYSTEM | LA | 5,370 |
| CALCASIEU PARISH WW DISTRICT 7 | LA | 4,791 |
Frequently asked questions about ZIP 70633 tap water
Is the tap water in ZIP 70633 safe to drink?
EPA testing detected 23 contaminants across the water suppliers serving ZIP 70633. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.
Which water suppliers serve ZIP 70633?
3 public water suppliers report EPA drinking-water monitoring for ZIP 70633. Each is listed above with its population served.
What contaminants are in ZIP 70633's water?
EPA monitoring detected Fluoride, Copper, Barium, TTHM, Nitrate-Nitrite, and others across this ZIP's suppliers. The full list with levels and sources is above.