Blewett Falls Lake
Anson County, North Carolina2,560 acresView mapDirections
NC DEQ publishes the water-quality measurements for Blewett Falls Lake. Here is what has been measured.
- Eutrophic
- Impaired · Algal growth
- 44 ft max depth
- Public access
- Limited data
Blewett Falls Lake in Anson County, North Carolina has water-quality measurements published by NC DEQ, shown here as reported. Phosphorus: 85 µg/L. Chlorophyll-a (algae): 27.5 µg/L. Surface area: 2560 acres.
Blewett Falls Lake is a 2,560-acre productive, nutrient-rich eutrophic lake in Anson County, North Carolina with an estimated average depth of about 44 feet. Limited fish-species data available. Public access is available with 3 public boat landings. Compared to the 1 other monitored lakes in Anson County, Blewett Falls Lake ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, NCDEQ, last sampled 2021-09-22. Methodology: how these readings are compared.
What Blewett Falls Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch3 documented ramps
- Big water2,560 acres
Swimming conditions
Readings onlyLimited data
Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrient and algae readings are not a swimming clearance. Blewett Falls Lake is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth. Check local advisories before you swim.
Whether Blewett Falls Lake is safe to swim in today is a call for the North Carolina Department of Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Blewett Falls Lake
These are the measurements NC DEQ publishes for Blewett Falls Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. Phosphorus 85 µg/L. Chlorophyll-a 27.5 µg/L. TSI 66.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | No reading How deep a black-and-white disk stays visible from the surface. Higher is clearer. | |
| Total phosphorus | 85µg/L | Poor GoodFairPoor |
| Chlorophyll-a (algae) | 27.5µg/L | Poor GoodFairPoor |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 66 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Blewett Falls Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
~44 ft est.
Surface area
2,560 acres
Public access
Yes
Listed by NC DEQ
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 Blewett Falls Lake.
Lake Size & Watershed
Watershed (drainage) area
6,859 sq mi
HydroLAKES / HydroSHEDS
Shoreline
24.7 mi
HydroLAKES / HydroSHEDS
Elevation
184 ft
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
- Blewetts GravePublic
- Pee DeePublic
- RockinghamPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Stays via Stay22
Stays near Blewett Falls Lake
Compare lakeside cabins, hotels, and vacation rentals near Blewett Falls Lake in Anson 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 readings cover nutrients and algae, not lodging. Cabins and rentals around Blewett Falls Lake are listed below.
Top-rated places to stay near Blewett Falls Lake
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Fishing Blewett Falls Lake
Reservoir Info (USACE NID)
Blewett Falls Lake is a man-made reservoir impounded by the Blewett Falls (completed 1912), built primarily for hydroelectric on the Pee Dee; concrete-type dam, 77 ft tall and 4,109 ft long.
- Surface area
- 2,560 ac
- Normal storage
- 97,000 ac-ft
- Max storage
- 97,000 ac-ft
- Drainage area
- 6,830 sq mi
- Hazard class
- High
- Owner
- Duke Energy
All listed purposes: Hydroelectric;Recreation;Water Supply.
Source: USACE National Inventory of Dams, NID ID NC00494 · Operator website
EPA Impairment Status
Blewett Falls Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
Designated uses not supporting: Aquatic life.
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit NC13-(26.5) · Official waterbody report
Nearby Lakes in Anson County
Frequently asked questions about Blewett Falls Lake
Where is Blewett Falls Lake?
- Blewett Falls Lake is a lake in Anson County, North Carolina. Its water-quality measurements are published by NC DEQ and shown on this page as reported.
What is the water quality of Blewett Falls Lake?
- Blewett Falls Lake in Anson County, North Carolina has water-quality measurements published by NC DEQ, shown here as reported. Phosphorus: 85 µg/L. Chlorophyll-a (algae): 27.5 µg/L. Surface area: 2560 acres.
Is Blewett Falls Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Blewett Falls Lake is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth. Check local advisories before you swim.
How deep is Blewett Falls Lake?
- No published bathymetric survey covers Blewett Falls Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 44 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate. The lake covers 2560 acres.
Are there boat ramps on Blewett Falls Lake?
- Blewett Falls Lake has 3 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Blewetts Grave, Pee Dee, Rockingham. Public access is listed as yes.
Can I fish at Blewett Falls Lake?
- Blewett Falls Lake has 3 documented boat landings in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by North Carolina's fish and wildlife agency, so check its current regulations before you go.
Explore Blewett Falls Lake across LakeQuality
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Where this data comes from
15 measurements from 1 monitoring station, 2021. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- North Carolina Dept of Environmental Quality NCDEQ-DWR WQX
21NC03WQ15 samples · 2021
Analytical methods
- Phosphorus by Colorimetry
- 445.0 ~ EPA; Chlorophyll and Pheophytin in Algae by Fluorescence
- 2130 B ~ Nephelometric Method
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database
Lake size & watershed from HydroLAKES (HydroSHEDS)
Named boat-access points from the USGS National Boat Ramps inventory