What was found in ZIP 95945
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 |
|---|---|---|---|
| TTHM | 45 µg/L 56% of the EPA limit 80 µg/L Main supplier: NEVADA ID - E. GEORGE, BANNER MOUNTAIN · 17,154 people · 2019
Highest in the ZIP: 62.3 µg/L — NEVADA ID - LOMA RICA · 14,072 people · 2019 | 3/3 | SYR4 |
| Chloroform | 44 µg/L No EPA limit set Main supplier: NEVADA ID - E. GEORGE, BANNER MOUNTAIN · 17,154 people · 2019
Highest in the ZIP: 60.3 µg/L — NEVADA ID - LOMA RICA · 14,072 people · 2019 | 3/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 27.2 µg/L 45% of the EPA limit 60 µg/L Highest in the ZIP: NEVADA ID - LOMA RICA · 14,072 people · 2018 | 2/3 | SYR4 |
| Trichloroacetic Acid | 20.2 µg/L No EPA limit set Highest in the ZIP: NEVADA ID - LOMA RICA · 14,072 people · 2018 | 2/3 | SYR4 |
| Dichloroacetic Acid | 10 µg/L No EPA limit set Highest in the ZIP: NEVADA ID - LOMA RICA · 14,072 people · 2018 | 2/3 | SYR4 |
| Selenium | 7.4 µg/L 15% of the EPA limit 50 µg/L Highest in the ZIP: CITY OF GRASS VALLEY · 4,947 people · 2019 | 1/3 | SYR4 |
| Arsenic | 6.6 µg/L 66% of the EPA limit 10 µg/L Main supplier: NEVADA ID - E. GEORGE, BANNER MOUNTAIN · 17,154 people · 2019 | 1/3 | SYR4 |
| Bromodichloromethane | 1.1 µg/L No EPA limit set Main supplier: NEVADA ID - E. GEORGE, BANNER MOUNTAIN · 17,154 people · 2019
Highest in the ZIP: 1.88 µg/L — NEVADA ID - LOMA RICA · 14,072 people · 2019 | 3/3 | SYR4 |
| Styrene | 1.29 µg/L 1.3% of the EPA limit 100 µg/L Main supplier: NEVADA ID - E. GEORGE, BANNER MOUNTAIN · 17,154 people · 2019
Highest in the ZIP: 1.6 µg/L — NEVADA ID - LOMA RICA · 14,072 people · 2019 | 2/3 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: NEVADA ID - E. GEORGE, BANNER MOUNTAIN · 17,154 people · 2024
Highest in the ZIP: 0.00088 mg/L — CITY OF GRASS VALLEY · 4,947 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.
Water suppliers serving ZIP 95945
| Supplier | State | Population served |
|---|---|---|
| NEVADA ID - E. GEORGE, BANNER MOUNTAIN | CA | 17,154 |
| NEVADA ID - LOMA RICA | CA | 14,072 |
| CITY OF GRASS VALLEY | CA | 4,947 |
Frequently asked questions about ZIP 95945 tap water
Is the tap water in ZIP 95945 safe to drink?
EPA testing detected 10 contaminants across the water suppliers serving ZIP 95945. 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 95945?
3 public water suppliers report EPA drinking-water monitoring for ZIP 95945. Each is listed above with its population served.
What contaminants are in ZIP 95945's water?
EPA monitoring detected TTHM, Chloroform, Total Haloacetic Acids (HAA5), Trichloroacetic Acid, Dichloroacetic Acid, and others across this ZIP's suppliers. The full list with levels and sources is above.