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LakeQuality

Shadow Lake

Orleans County, Vermont199 acresView mapDirections

Vermont DEC publishes the water-quality measurements for Shadow Lake. Here is what has been measured.

Clarity
28.9 ft
Clearer than most
Secchi · sampled 2025
Phosphorus
8.3 µg/L
Less phosphorus than most
Measured by Vermont DEC
Chlorophyll-a
1.4 µg/L
Less algae than most
Measured by Vermont DEC
Max depth
~61 ft est.
GLOBathy model
Area
199 acres
Surface area
Type
Oligotrophic
Trophic class
  • Oligotrophic
  • Impaired · Hydrologic alteration
  • 61 ft max depth
  • Public access

Shadow Lake in Orleans County, Vermont has water-quality measurements published by Vermont DEC, shown here as reported. Water clarity: 28.9 ft visibility. Phosphorus: 8.3 µg/L. Chlorophyll-a (algae): 1.4 µg/L. Surface area: 199 acres.

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Shadow Lake is a 199-acre cold, clear oligotrophic lake in Orleans County, Vermont with an estimated average depth of about 61 feet. Overall water quality is improving over recent sampling years. Limited fish-species data available. Public access is available with 1 public boat landing. Compared to the 16 other monitored lakes in Orleans County, Shadow Lake ranks #5 for water quality.

Source: EPA Water Quality Portal sampling records, VT DEC, last sampled 2025-08-21. Methodology: how these readings are compared.

Shadow Lake covers about 200 acres in Orleans County. It has one public boat landing. If you are planning to stay, you can search lake houses and cabins around Shadow Lake on Vrbo, or look for a hotel room near the lake on Booking.com or Expedia.

What Shadow Lake is good for

From access and monitoring records, not editorial picks.

  • Clear water28.9 ft of visibility
  • Boat launch1 documented ramp

Swimming conditions

Readings only

Low algae

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. Shadow Lake is listed impaired under Clean Water Act §303(d) (IR 4C) for hydrologic alteration. Check local advisories before you swim.

Whether Shadow Lake is safe to swim in today is a call for the Vermont Department of Environmental Conservation and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

Get alerts for Shadow Lake →

Water quality measurements for Shadow Lake

These are the measurements Vermont DEC publishes for Shadow Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.

Crystal clear, you can see 28.9 ft down. Phosphorus 8.3 µg/L. Chlorophyll-a 1.4 µg/L. TSI 32.

Water quality readings
MeasureReadingWhere it sits
Water clarity (Secchi depth)28.9ftMeasured, not scored

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

Total phosphorus8.3µg/LGood
GoodFairPoor
Chlorophyll-a (algae)1.4µg/LGood
GoodFairPoor
Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a.32Oligotrophic
OligotrophicMesotrophicEutrophicHypereutrophic

Low nutrients, clear water. No reading is a swimming clearance.

Ask about Shadow Lake

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

Lake Details

Max depth

~61 ft est.

Surface area

199 acres

Public access

Yes

Listed by Vermont DEC

Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Vermont has not published bathymetry for Shadow Lake.

Lake Size & Watershed

Watershed (drainage) area

4 sq mi

HydroLAKES / HydroSHEDS

Shoreline

2.4 mi

HydroLAKES / HydroSHEDS

Elevation

1,394 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

1
Boat Landings
Yes
Public Access
  • Shadow Lake (Glover)Public

Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps

Stays via Stay22

Stays near Shadow Lake

Compare lakeside cabins, hotels, and vacation rentals near Shadow Lake in Orleans County, Vermont — 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.

Top-rated places to stay near Shadow Lake

Prices for Oct 30–Nov 1, 4 adults. Change dates on the map below.

Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.

Planning a trip? Cabins and lodging at Shadow Lake → · more Vermont lake trips

Follow Shadow Lake’s readings

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Fishing Shadow Lake

Based on 6 years of monitoring (2020–2025).

  • Water clarity

    Worsening

    6 years

  • Phosphorus

    Improving

    -0.55 µg/L/yr6 years

  • Chlorophyll-a

    Improving

    -0.3 µg/L/yr6 years

See year-by-year chart →

Reservoir Info (USACE NID)

Shadow Lake is a man-made reservoir impounded by the Shadow Lake (completed 1929), built primarily for recreation on the Barton River-Tr; masonry-type dam, 13 ft tall and 129 ft long.

Surface area
199 ac
Normal storage
0 ac-ft
Max storage
1,700 ac-ft
Drainage area
5.59 sq mi
Hazard class
Significant
Owner
TOWN OF GLOVER

Source: USACE National Inventory of Dams, NID ID VT00070 · Operator website

EPA Impairment Status

Shadow Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 4C).

Causes of impairment

Hydrologic alteration

Designated uses not supporting: Aquatic life, Other.

Source: EPA ATTAINS assessment unit VT17-08L03_01 · Official waterbody report

Nearby Lakes in Orleans County

Frequently asked questions about Shadow Lake

Where is Shadow Lake?

Shadow Lake is a lake in Orleans County, Vermont. Its water-quality measurements are published by Vermont DEC and shown on this page as reported.

What is the water quality of Shadow Lake?

Shadow Lake in Orleans County, Vermont has water-quality measurements published by Vermont DEC, shown here as reported. Water clarity: 28.9 ft visibility. Phosphorus: 8.3 µg/L. Chlorophyll-a (algae): 1.4 µg/L. Surface area: 199 acres.

Measurements on this page ↑

Is Shadow Lake safe to swim in?

Nutrient and algae readings are not a swimming clearance. Shadow Lake is listed impaired under Clean Water Act §303(d) (IR 4C) for hydrologic alteration. Check local advisories before you swim.

Swimming on this page ↑

How deep is Shadow Lake?

No published bathymetric survey covers Shadow Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 61 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 199 acres.

Are there boat ramps on Shadow Lake?

Shadow Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Shadow Lake (Glover). Public access is listed as yes.

Access on this page ↑

Can I fish at Shadow Lake?

Shadow Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Vermont's fish and wildlife agency, so check its current regulations before you go.

Access on this page ↑

Where this data comes from

210 measurements from 3 monitoring stations, 2020–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • Vermont Dept of Environmental Conservation1VTDECWQ210 samples · 2020–2025

Analytical methods

  • EPA approved Alternate Test Procedure for 4500 P H. Has a 28 day hold without acid preservation.
  • 445.0 ~ EPA; Chlorophyll and Pheophytin in Algae by Fluorescence
  • 2130 B ~ Nephelometric Method
Monitoring station identifiers (3)

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