Garfield County, UT
These figures come from wells tested in Garfield County, UT, not from any one well.
- Sulfate is common in wells in Garfield County, UT (9 of 69 tested wells were over that level), so it's worth testing for.
- Iron is not common in wells in Garfield County, UT (1 of 18 tested wells were over). Only a test tells you about your own well.
- Wells in Garfield County, UT are typically very hard (69 wells tested).
- Too few wells have been tested in Garfield County, UT (8) to say how common manganese is.
- Only a test of your own well tells you about your water.
What to test for
Start with the four this site covers:
- sulfate (common in wells here)
- iron
- manganese
- hardness
Most well owners also test for these. We point to the source and don't interpret the results.
- arsenic: occurs naturally in groundwater in many regions. USGS: arsenic and drinking water
- nitrate: common near farmland and septic systems. EPA: private drinking water wells
- total coliform bacteria: the standard yearly well check. EPA: private drinking water wells
- lead and copper: from household plumbing, especially when pH is below 6.5. EPA: lead in drinking water
- PFAS: several states run private-well sampling programs. EPA: PFAS
- a certified lab: states certify labs and some run their own private-well programs. Utah's certified-lab list (from your state drinking-water program)
The numbers
County figures describe the wells sampled there, not any one well. Exact counts, sample years and sources are below.
Iron Recent
| Level it's compared with | 0.3 mg/L |
|---|---|
| Share of wells over the level | 5.6% |
| Wells over the level / wells judged | 1 of 18 |
| Median | < DL mg/L |
| Years sampled | 1948–2020 |
| Wells | 20 |
| Test results | 78 |
| Wells left out | 3 |
| Sources | USGS (38), UTAHGS (12), UTAHDWQ_WQX (4) |
More than half the wells had results below the lab's detection limit, so the median is reported as below that limit.
Manganese Too few
| Level it's compared with | 0.05 mg/L |
|---|---|
| Share of wells over the level | 0.0% |
| Wells over the level / wells judged | 0 of 8 |
| Median | < 2 mg/L |
| Years sampled | 1974–2020 |
| Wells | 10 |
| Test results | 46 |
| Wells left out | 3 |
| Sources | USGS (27), UTAHDWQ_WQX (4), UTAHGS (2) |
More than half the wells had results below the lab's detection limit, so the median is reported as below that limit.
Hardness Recent
| Level it's compared with | none; hardness is shown in bands |
|---|---|
| Share of wells very hard | 65% |
| Median | 233.387 mg/L as CaCO₃ |
| Years sampled | 1948–2020 |
| Wells | 69 |
| Test results | 114 |
| Wells left out | 3 |
| Sources | USGS (47), UTAHGS (17), UTAHDWQ_WQX (4), 11NPSWRD_WQX (1) |
Sulfate Recent
| Level it's compared with | 250 mg/L |
|---|---|
| Share of wells over the level | 13% |
| Wells over the level / wells judged | 9 of 69 |
| Median | 18 mg/L |
| Years sampled | 1948–2020 |
| Wells | 69 |
| Test results | 113 |
| Wells left out | 3 |
| Sources | USGS (47), UTAHGS (18), UTAHDWQ_WQX (4) |