Kettle Lake
Williams County, North DakotaView mapDirections
Nutrients and algae sit mid-range for this region.
↓ down from B at the last regrade
- Eutrophic
- #3 of 6 in the county
- Public access
- Limited data
Kettle Lake in Williams County, North Dakota has a water quality grade of C (Fair). Water clarity: 5.3 ft visibility. Phosphorus: 37 µg/L. Chlorophyll-a (algae): 3.9 µg/L.
- Clarity
- 5.3 ft
- Type
- Eutrophic
- Phosphorus
- 37 µg/L
- Chlorophyll-a
- 3.9 µg/L
- Public access
- Yes
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Watch Kettle Lake’s letter
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Kettle Lake is a productive, nutrient-rich eutrophic lake in Williams County, North Dakota. Water quality is graded C based on 1 sampling years through 2024. Limited fish-species data available. Public access is available with 1 public boat landing. Compared to the 5 other monitored lakes in Williams County, Kettle Lake ranks #3 for water quality.
Source: EPA Water Quality Portal sampling records, NDDEQ, last sampled 2024-10-02. Grade methodology: LakeQuality methodology.
What Kettle Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
Swimming Safety
Grade onlyLimited data
Based on clarity and algae grades from past sampling — we do not hold live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
The C is nutrients and algae, not a swimming clearance. Check local advisories before you swim.
Water Quality Grade: C (Fair)
Murky, only visible to about 5.3 ft. Phosphorus 37 µg/L. Chlorophyll-a 3.9 µg/L. TSI 51. The letter is not a swimming clearance.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 5.3 ft | Not graded |
| Phosphorus | 37 µg/L | Not graded |
| Chlorophyll-a (Algae) | 3.9 µg/L | Not graded |
| Trophic State Index (TSI) | 51 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Recreation & Access
- Kettle LakePublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Kettle Lake
County Ranking
Ranked #3 of 6 lakes in Williams County
Nearby Lakes in Williams County
Frequently asked questions about Kettle Lake
Where is Kettle Lake?
- Kettle Lake is a lake in Williams County, North Dakota. LakeQuality grades it C for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Kettle Lake?
- Kettle Lake in Williams County, North Dakota has a water quality grade of C (Fair). Water clarity: 5.3 ft visibility. Phosphorus: 37 µg/L. Chlorophyll-a (algae): 3.9 µg/L.
Is Kettle Lake safe to swim in?
- The C is nutrients and algae, not a swimming clearance. Check local advisories before you swim.
Are there boat ramps on Kettle Lake?
- Kettle Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Kettle Lake. Public access is listed as yes.
Explore Kettle Lake across LakeQuality
Species activity outlook by water temperature and season
Where to stay at North Dakota's top lakes, each with its grade
High nutrients, frequent algae, reduced clarity
North Dakota's cleanest and most-polluted lakes, ranked
More North Dakota Lake Rankings
Other Grade C Lakes in North Dakota
Eutrophic Lakes in North Dakota
Where this data comes from
20 measurements from 1 monitoring station, 2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- North Dakota Department Of Environmental Quality
21NDHDWQ_WQX20 samples · 2024
Analytical methods
- Phosphorus by Colorimetry
- 447.0 ~ EPA; Chlorophyll a and b in phytoplankton by HPLC/UV
- 4500 NO3 E ~ Nitrate in Water- Cadmium Reduction
Monitoring station identifiers (1)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.
Other records on this page
Named boat-access points from the USGS National Boat Ramps inventory