Is There a Cleaner Lake Near Billy Chinook Reservoir?
Compared against 3 graded lakes within 30 miles, in Oregon.
Billy Chinook Reservoir holds Grade C (Fair). Of the 3 lakes within 30 miles of it that carry a grade, none scores higher on nutrients and algae, so Billy Chinook Reservoir is the cleanest graded water in that radius. Lakes nearby without enough recent sampling to earn a letter are not part of that comparison.
The graded lakes it was measured against
| Lake | County | Grade | Distance | Clarity |
|---|---|---|---|---|
| Billy Chinook Reservoir | Jefferson County | C | This lake | 4.4 ft |
| Deschutes River Arm Lake | Jefferson County | D | 0.7 mi | 4.6 ft |
| Deschutes River Arm Lake | Jefferson County | D | 2.6 mi | 4.6 ft |
| Round Butte Dam Forebay Lake | Jefferson County | D | 3 mi | 5.6 ft |
What the comparison covers
A grade on LakeQuality comes from EPA Water Quality Portal samples: phosphorus, nitrogen, chlorophyll-a and turbidity, measured against EPA National Lakes Assessment ecoregion classes. Secchi clarity is shown and is not scored. This page compares Billy Chinook Reservoir only with neighbouring lakes in Oregonthat carry a letter of their own, within 30 miles. A nearby lake with too little recent sampling has no letter to compare, so it is absent from the table rather than ranked below. Where a driving distance is not published for a lake, the table says so instead of estimating one.