Lake Devin
Granville County, North CarolinaView mapDirections
Nutrients and algae run above the regional average.
↓ down from C at the last regrade
- Eutrophic
- #2 of 3 in the county
- 35 ft max depth
- Public access
- Limited data
Lake Devin in Granville County, North Carolina has a water quality grade of D (Nutrient-rich). Phosphorus: 40 µg/L. Chlorophyll-a (algae): 23 µg/L.
- Max depth
- ~35 ft est.
- Type
- Eutrophic
- Public access
- Yes
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Stays near Lake Devin
Compare lakeside cabins, hotels, and vacation rentals near Lake Devin in Granville County, North Carolina — 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. The water-quality grade measures nutrients and algae, not lodging — cabins and rentals around Lake Devin are listed below.
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Lake Devin is a productive, nutrient-rich eutrophic lake in Granville County, North Carolina with an estimated average depth of about 35 feet. Water quality is graded D based on 2 sampling years through 2022. Limited fish-species data available. Public access is available with 1 public boat landing. Compared to the 2 other monitored lakes in Granville County, Lake Devin ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, NCDEQ, last sampled 2022-09-21. Grade methodology: LakeQuality methodology.
What Lake Devin 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 D is nutrients and algae, not a swimming clearance. Check local advisories before you swim.
Water Quality Grade: D (Nutrient-rich)
No clarity data. Phosphorus 40 µg/L. Chlorophyll-a 23 µg/L. TSI 59. The letter is not a swimming clearance.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 40 µg/L | Poor |
| Chlorophyll-a (Algae) | 23 µg/L | Poor |
| Trophic State Index (TSI) | 59 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | ~35 ft est. |
| Average Depth | ~11 ft est. |
| Public Access | Yes |
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. North Carolina has not published bathymetry for Lake Devin.
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth here is modelled, not surveyed — HydroLAKES v1.0 estimates lake depth from surrounding terrain rather than from soundings. Treat it as an approximation, and prefer a state bathymetric survey where one exists.
Recreation & Access
- Lake Devin Boat Ramp and ShelterPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Lake Devin
Reservoir Info (USACE NID)
Lake Devin is a man-made reservoir impounded by the Lake Devin Dam, built primarily for water supply on the Hachers Run; earth-type dam, 36 ft tall.
- Max storage
- 2,210 ac-ft
- Drainage area
- 1.45 sq mi
- Hazard class
- High
- Owner
- City of Oxford
Source: USACE National Inventory of Dams, NID ID NC01002 · Operator website
County Ranking
Ranked #2 of 3 lakes in Granville County
Nearby Lakes in Granville County
Frequently asked questions about Lake Devin
Where is Lake Devin?
- Lake Devin is a lake in Granville County, North Carolina. LakeQuality grades it D for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Lake Devin?
- Lake Devin in Granville County, North Carolina has a water quality grade of D (Nutrient-rich). Phosphorus: 40 µg/L. Chlorophyll-a (algae): 23 µg/L.
Is Lake Devin safe to swim in?
- The D is nutrients and algae, not a swimming clearance. Check local advisories before you swim.
How deep is Lake Devin?
- No published bathymetric survey covers Lake Devin, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 35 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate.
Are there boat ramps on Lake Devin?
- Lake Devin has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Lake Devin Boat Ramp and Shelter. Public access is listed as yes.
Explore Lake Devin across LakeQuality
Species activity outlook by water temperature and season
Where to stay at North Carolina's top lakes, each with its grade
High nutrients, frequent algae, reduced clarity
North Carolina's cleanest and most-polluted lakes, ranked
More North Carolina Lake Rankings
Ranked by overall water quality grade
Top 25 by Secchi water clarity
Grade A/B + low algae filter
Panfish-rich, public access
Full state directory
Other Grade D Lakes in North Carolina
Eutrophic Lakes in North Carolina
Where this data comes from
33 measurements from 2 monitoring stations, 2022. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- North Carolina Dept of Environmental Quality NCDEQ-DWR WQX
21NC03WQ33 samples · 2022
Analytical methods
- Phosphorus by Colorimetry
- 445.0 ~ EPA; Chlorophyll and Pheophytin in Algae by Fluorescence
- 2130 B ~ Nephelometric Method
Monitoring station identifiers (2)
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
Lake size & watershed from HydroLAKES (HydroSHEDS)
Named boat-access points from the USGS National Boat Ramps inventory