Chewalla Lake
Chewalla Lake in Marshall County, Mississippi has a water quality grade of B (Good). Water clarity: 2.5 ft visibility. Phosphorus: 20 µg/L. Chlorophyll-a (algae): 11.4 µg/L.
- Clarity
- 2.5 ft
- Type
- Eutrophic
- Public access
- Yes
Chewalla Lake is a 0-acre productive, nutrient-rich eutrophic lake in Marshall County, Mississippi. Water quality is graded B based on 2 sampling years through 2021. Limited fish-species data available. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2021-10-14. Grade methodology: LakeGrade methodology.
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Swimming Safety
Grade onlyLow algae
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.
Good for swimming, clear water with low algae levels
Water Quality Grade: B (Good)
Very murky, less than 2.5 ft of visibility. Phosphorus level: 20 µg/L. Chlorophyll-a: 11.4 µg/L. Trophic State Index: 55.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.5 ft | Not graded |
| Phosphorus | 20 µg/L | Good |
| Chlorophyll-a (Algae) | 11.4 µg/L | Good |
| Trophic State Index (TSI) | 55 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Chewalla Lake
Compare lakeside cabins, hotels, and vacation rentals near Chewalla Lake in Marshall County, Mississippi — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
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Recreation & Access
- Chewalla LakePublic
Named access points from the USGS National Boat Ramps inventory, snapped within 5 km. More lakes with boat ramps
Fishing Chewalla Lake
Reservoir Info (USACE NID)
Chewalla Lake is a man-made reservoir impounded by the Chewalla Lake Dam (Lt 7-1) (completed 1966), built primarily for flood risk reduction on the Chewalla Creek; earth-type dam, 48 ft tall and 2,620 ft long.
- Surface area
- 0 ac
- Normal storage
- 1,450 ac-ft
- Max storage
- 9,900 ac-ft
- Drainage area
- 29 sq mi
- Hazard class
- Low
- Owner
- USDA FS
Source: USACE National Inventory of Dams, NID ID MS00943 · Operator website · Matched by proximity (0.98 km)
County Ranking
Ranked #1 of 1 lakes in Marshall County
Nearby Lakes in Marshall County
Frequently asked questions about Chewalla Lake
Where is Chewalla Lake?
- Chewalla Lake is a lake in Marshall County, Mississippi. LakeQuality grades it B for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Chewalla Lake?
- Chewalla Lake in Marshall County, Mississippi has a water quality grade of B (Good). Water clarity: 2.5 ft visibility. Phosphorus: 20 µg/L. Chlorophyll-a (algae): 11.4 µg/L.
Is Chewalla Lake safe to swim in?
- Good for swimming, clear water with low algae levels. Chewalla Lake has a water quality grade of B (Good). Algae concentration (chlorophyll-a) is 11.4 µg/L. Always check local health department advisories before swimming.
Are there boat ramps on Chewalla Lake?
- Chewalla Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Chewalla Lake. Public access is listed as yes.
Explore Chewalla Lake across LakeGrade
More Mississippi Lake Rankings
Other Grade B Lakes in Mississippi
Eutrophic Lakes in Mississippi
Where this data comes from
42 measurements from 1 monitoring station, 2020–2021. Retrieved from the EPA Water Quality Portal on 2026-08-21.
Collected and reported by
- MISSISSIPPI DEPARTMENT OF ENVIRONMENTAL QUALITY
21MSWQ_WQX42 samples · 2020–2021
Analytical methods
- Phosphorus by Colorimetry
- 445.0 ~ EPA; Chlorophyll and Pheophytin in Algae by Fluorescence
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