Little Hosmer Pond
Orleans County, Vermont183 acresView mapDirections
Clarity, phosphorus, and algae all sit in the cleanest band for this region.
- Mesotrophic
- #11 of 17 in the county
- 40 ft max depth
- Public access
Little Hosmer Pond in Orleans County, Vermont has a water quality grade of A (Excellent). Phosphorus: 9.2 µg/L. Chlorophyll-a (algae): 2.4 µg/L. Surface area: 183 acres.
- Max depth
- ~40 ft est.
- Area
- 183 acres
- Type
- Mesotrophic
- Phosphorus
- 9.2 µg/L
- Chlorophyll-a
- 2.4 µg/L
- Trend
- ↑ Improving
- Public access
- Yes
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Watch Little Hosmer Pond’s letter
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Little Hosmer Pond is a 183-acre mesotrophic lake in Orleans County, Vermont with an estimated average depth of about 40 feet. Water quality is graded A based on 2 sampling years through 2025. 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, Little Hosmer Pond ranks #11 for water quality.
Source: EPA Water Quality Portal sampling records, VT DEC, last sampled 2025-08-25. Grade methodology: LakeQuality methodology.
What Little Hosmer Pond is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
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.
The A is nutrients and algae, not a swimming clearance. Check local advisories before you swim.
Water Quality Grade: A (Excellent)
No clarity data. Phosphorus 9.2 µg/L. Chlorophyll-a 2.4 µg/L. TSI 38. The letter is not a swimming clearance.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 9.2 µg/L | Good |
| Chlorophyll-a (Algae) | 2.4 µg/L | Good |
| Trophic State Index (TSI) | 38 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | ~40 ft est. |
| Average Depth | ~18 ft est. |
| Surface Area | 183 acres |
| Public Access | Yes |
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Vermont has not published bathymetry for Little Hosmer Pond.
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
- Little HosmerPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Little Hosmer Pond
Water Quality Trend: ↑ Improving
Based on 6 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | → Stable | -0.08 m/yr | 6 |
| Phosphorus | ↑ Improving | -3.68 µg/L/yr | 5 |
| Chlorophyll-a | ↑ Improving | -0.73 µg/L/yr | 5 |
Reservoir Info (USACE NID)
Little Hosmer Pond is a man-made reservoir impounded by the Little Hosmer Pond (completed 1969), built primarily for recreation on the Black River-Tr; concrete-type dam, 8 ft tall and 200 ft long.
- Surface area
- 183 ac
- Normal storage
- 0 ac-ft
- Max storage
- 825 ac-ft
- Drainage area
- 2.8 sq mi
- Hazard class
- Low
- Owner
- STATE OF VERMONT - DEC
Source: USACE National Inventory of Dams, NID ID VT00092 · Operator website
County Ranking
Ranked #11 of 17 lakes in Orleans County
Nearby Lakes in Orleans County
Frequently asked questions about Little Hosmer Pond
Where is Little Hosmer Pond?
- Little Hosmer Pond is a lake in Orleans County, Vermont. LakeQuality grades it A for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Little Hosmer Pond?
- Little Hosmer Pond in Orleans County, Vermont has a water quality grade of A (Excellent). Phosphorus: 9.2 µg/L. Chlorophyll-a (algae): 2.4 µg/L. Surface area: 183 acres.
Is Little Hosmer Pond safe to swim in?
- The A is nutrients and algae, not a swimming clearance. Check local advisories before you swim.
How deep is Little Hosmer Pond?
- No published bathymetric survey covers Little Hosmer Pond, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 40 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 183 acres.
Are there boat ramps on Little Hosmer Pond?
- Little Hosmer Pond has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Little Hosmer. Public access is listed as yes.
Explore Little Hosmer Pond across LakeQuality
More Vermont Lake Rankings
Other Grade A Lakes in Vermont
Mesotrophic Lakes in Vermont
Where this data comes from
49 measurements from 1 monitoring station, 2020–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Vermont Dept of Environmental Conservation
1VTDECWQ49 samples · 2020–2025
Analytical methods
- 4500 P H ~ Manual Digestion and Flow Injection Analysis for Total Phosphorus
- 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 (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
Lake size & watershed from HydroLAKES (HydroSHEDS)
Named boat-access points from the USGS National Boat Ramps inventory