What was found in Garden Valley'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 |
|---|---|---|---|
| Fluoride | 600.5 µg/L 15% of the EPA limit 4000 µg/L Main supplier: SCRIVER WOODS HOMEOWNERS ASSN · 310 people · 2019
Highest in the city: 18900 µg/L — GARDEN VALLEY RANCHETTES HOMEOWNERS · 78 people · 2019 | 4/8 | SYR4 |
| Nitrate | 600 µg/L 6% of the EPA limit 10000 µg/L Highest in the city: GARDEN VALLEY RANCHETTES HOMEOWNERS · 78 people · 2019 | 4/8 | SYR4 |
| Nitrate-Nitrite | 600 µg/L 6% of the EPA limit 10000 µg/L Highest in the city: GARDEN VALLEY RANCHETTES HOMEOWNERS · 78 people · 2019 | 3/8 | SYR4 |
| Nitrite | 200 µg/L 20% of the EPA limit 1000 µg/L Main supplier: SCRIVER WOODS HOMEOWNERS ASSN · 310 people · 2019 | 1/8 | SYR4 |
| Barium | 168 µg/L 8.4% of the EPA limit 2000 µg/L Main supplier: SCRIVER WOODS HOMEOWNERS ASSN · 310 people · 2019 | 5/8 | SYR4 |
| TTHM | 119.4 µg/L 149% of the EPA limit, at the 95th percentile of samples — 80 µg/L Highest in the city: CASTLE MOUNTAIN CREEKS OWNERS ASSN · 250 people · 2019 | 1/8 | SYR4 |
| Total Haloacetic Acids (HAA5) | 106 µg/L 177% of the EPA limit, at the 95th percentile of samples — 60 µg/L Highest in the city: CASTLE MOUNTAIN CREEKS OWNERS ASSN · 250 people · 2019 | 1/8 | SYR4 |
| Copper | 10 µg/L 0.8% of the EPA limit 1300 µg/L Highest in the city: MOUNTAIN VIEW WATER AND ROAD ASSN · 305 people · 2018 | 1/8 | SYR4 |
| Chromium | 3 µg/L 3% of the EPA limit 100 µg/L Main supplier: SCRIVER WOODS HOMEOWNERS ASSN · 310 people · 2019 | 1/8 | SYR4 |
| Combined Uranium | 3 µg/L 10% of the EPA limit 30 µg/L Highest in the city: GARDEN VALLEY RANCHETTES HOMEOWNERS · 78 people · 2019 | 2/8 | SYR4 |
| Combined Radium (-226 And -228) | 0.9000 pCi/L 18% of the EPA limit 5 pCi/L Main supplier: SCRIVER WOODS HOMEOWNERS ASSN · 310 people · 2019
Highest in the city: 0.9300 pCi/L — MOUNTAIN SHADOWS HOA INC. · 89 people · 2017 | 4/8 | SYR4 |
| Gross Alpha, Excl. Radon And U | 0.3000 pCi/L 2% of the EPA limit 15 pCi/L Main supplier: SCRIVER WOODS HOMEOWNERS ASSN · 310 people · 2012 | 1/8 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: SCRIVER WOODS HOMEOWNERS ASSN · 310 people · 2023
Highest in the city: 0.0080 mg/L — VALLEY HI ESTATES · 140 people · 2024 | 8/8 | LCR |
Water suppliers serving Garden Valley
| Supplier | Population served |
|---|---|
| SCRIVER WOODS HOMEOWNERS ASSN | 310 |
| MOUNTAIN VIEW WATER AND ROAD ASSN | 305 |
| CASTLE MOUNTAIN CREEKS OWNERS ASSN | 250 |
| VALLEY HI ESTATES | 140 |
| MOUNTAIN SHADOWS HOA INC. | 89 |
| GARDEN VALLEY RANCHETTES HOMEOWNERS | 78 |
| SHILO RANCH ESTATES | 44 |
| SOUTHFORK LANDING INC | 25 |
Frequently asked questions about Garden Valley tap water
Is Garden Valley tap water safe to drink?
EPA testing detected 13 contaminants in the water serving Garden Valley. 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 Garden Valley?
8 public water suppliers report drinking-water monitoring for Garden Valley, Idaho to the EPA. Each is listed above with its population served.
What contaminants are in Garden Valley's water?
The contaminants EPA monitoring detected in Garden Valley include Fluoride, Nitrate, Nitrate-Nitrite, Nitrite, Barium. 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.