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LakeQuality

Wiggins Mill Reservoir

Wilson County, North CarolinaView mapDirections

NC DEQ publishes the water-quality measurements for Wiggins Mill Reservoir. Here is what has been measured.

Clarity
2.6 ft
Typical for North Carolina
Secchi · sampled 2025
Phosphorus
60 µg/L
More phosphorus than most
Measured by NC DEQ
Chlorophyll-a
29 µg/L
Typical for North Carolina
Measured by NC DEQ
Max depth
~21 ft est.
GLOBathy model
Type
Eutrophic
Trophic class
  • Eutrophic
  • 21 ft max depth

Wiggins Mill Reservoir in Wilson County, North Carolina has water-quality measurements published by NC DEQ, shown here as reported. Water clarity: 2.6 ft visibility. Phosphorus: 60 µg/L. Chlorophyll-a (algae): 29 µg/L.

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Wiggins Mill Reservoir is a productive, nutrient-rich eutrophic lake in Wilson County, North Carolina with an estimated average depth of about 21 feet. Overall water quality is improving over recent sampling years. Compared to the 3 other monitored lakes in Wilson County, Wiggins Mill Reservoir ranks #1 for water quality.

Source: EPA Water Quality Portal sampling records, NCDEQ, last sampled 2025-09-10. Methodology: how these readings are compared.

Swimming conditions

Readings only

Algae risk

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. Check local advisories before you swim.

Whether Wiggins Mill Reservoir 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.

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Water quality measurements for Wiggins Mill Reservoir

These are the measurements NC DEQ publishes for Wiggins Mill Reservoir, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.

Very murky, less than 2.6 ft of visibility. Phosphorus 60 µg/L. Chlorophyll-a 29 µg/L. TSI 63.

Water quality readings
MeasureReadingWhere it sits
Water clarity (Secchi depth)2.6ftMeasured, not scored

How deep a black-and-white disk stays visible from the surface. Higher is clearer.

Total phosphorus60µg/LPoor
GoodFairPoor
Chlorophyll-a (algae)29µg/LPoor
GoodFairPoor
Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a.63Eutrophic
OligotrophicMesotrophicEutrophicHypereutrophic

High nutrients, frequent algae, reduced clarity

Ask about Wiggins Mill Reservoir

Answers come straight from the public measurements and survey records on this page.

Lake Details

Max depth

~21 ft est.

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 Wiggins Mill Reservoir.

Lake Size & Watershed

Watershed (drainage) area

236 sq mi

HydroLAKES / HydroSHEDS

Surface area

109 acres

HydroLAKES / HydroSHEDS

Shoreline

2.6 mi

HydroLAKES / HydroSHEDS

Elevation

89 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.

Stays via Stay22

Stays near Wiggins Mill Reservoir

Compare lakeside cabins, hotels, and vacation rentals near Wiggins Mill Reservoir in Wilson 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 Wiggins Mill Reservoir are listed below.

Top-rated places to stay near Wiggins Mill Reservoir

Prices for Oct 23–25, 4 adults. Change dates on the map below.

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Fishing Wiggins Mill Reservoir

2 seasons of samples on record (2020–2025). Calling a direction takes at least 4 years of the same measurement.

  • Phosphorus

    Improving

    -4 µg/L/yr2 years

  • Chlorophyll-a

    Stable

    +0.4 µg/L/yr2 years

Reservoir Info (USACE NID)

Wiggins Mill Reservoir is a man-made reservoir impounded by the Wiggins Millpond Dam, built primarily for other on the Contentnea Creek; concrete-type dam, 17 ft tall and 250 ft long.

Max storage
1,020 ac-ft
Drainage area
237 sq mi
Hazard class
Significant
Owner
City of Wilson

All listed purposes: Other;Water Supply.

Source: USACE National Inventory of Dams, NID ID NC00895 · Operator website · Matched by proximity (0.5 km)

Nearby Lakes in Wilson County

Frequently asked questions about Wiggins Mill Reservoir

Where is Wiggins Mill Reservoir?

Wiggins Mill Reservoir is a lake in Wilson 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 Wiggins Mill Reservoir?

Wiggins Mill Reservoir in Wilson County, North Carolina has water-quality measurements published by NC DEQ, shown here as reported. Water clarity: 2.6 ft visibility. Phosphorus: 60 µg/L. Chlorophyll-a (algae): 29 µg/L.

Measurements on this page ↑

Is Wiggins Mill Reservoir safe to swim in?

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Swimming on this page ↑

How deep is Wiggins Mill Reservoir?

No published bathymetric survey covers Wiggins Mill Reservoir, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 21 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate.

Where this data comes from

73 measurements from 2 monitoring stations, 2020–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • North Carolina Dept of Environmental Quality NCDEQ-DWR WQX21NC03WQ73 samples · 2020–2025

Analytical methods

  • WSSSOP
  • Phosphorus by Colorimetry
  • 445.0 ~ EPA; Chlorophyll and Pheophytin in Algae by Fluorescence
  • 2130 B ~ Nephelometric Method
Monitoring station identifiers (2)

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

Lake size & watershed from HydroLAKES (HydroSHEDS)