Curtis Pond
Washington County, Vermont76 acresView mapDirections
Clarity, phosphorus, and algae all sit in the cleanest band for this region.
- Mesotrophic
- #3 of 9 in the county
- 47 ft max depth
- Public access
Curtis Pond in Washington County, Vermont has a water quality grade of A (Excellent). Water clarity: 15.3 ft visibility. Phosphorus: 13.2 µg/L. Chlorophyll-a (algae): 3.2 µg/L. Surface area: 76 acres.
- Clarity
- 15.3 ft
- Max depth
- ~47 ft est.
- Area
- 76 acres
- Type
- Mesotrophic
- Phosphorus
- 13.2 µg/L
- Chlorophyll-a
- 3.2 µg/L
- Trend
- ↑ Improving
- Public access
- Yes
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Watch Curtis Pond’s letter
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Curtis Pond is a 76-acre mesotrophic lake in Washington County, Vermont with an estimated average depth of about 47 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 8 other monitored lakes in Washington County, Curtis Pond ranks #3 for water quality.
Source: EPA Water Quality Portal sampling records, VT DEC, last sampled 2025-08-27. Grade methodology: LakeQuality methodology.
What Curtis Pond is good for
From access and monitoring records, not editorial picks.
- Clear water15.3 ft of visibility
- 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)
Crystal clear, you can see 15.3 ft down. Phosphorus 13.2 µg/L. Chlorophyll-a 3.2 µg/L. TSI 40. The letter is not a swimming clearance.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 15.3 ft | Not graded |
| Phosphorus | 13.2 µg/L | Good |
| Chlorophyll-a (Algae) | 3.2 µg/L | Good |
| Trophic State Index (TSI) | 40 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | ~47 ft est. |
| Average Depth | ~19 ft est. |
| Surface Area | 76 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 Curtis 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
- Curtis PondPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Curtis Pond
Water Quality Trend: ↑ Improving
Based on 6 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.127 m/yr | 6 |
| Phosphorus | ↑ Improving | -1.51 µg/L/yr | 5 |
| Chlorophyll-a | ↑ Improving | -0.8 µg/L/yr | 5 |
Reservoir Info (USACE NID)
Curtis Pond is a man-made reservoir impounded by the Curtis Pond (completed 1900), built primarily for recreation on the Curtis Pond Brook; gravity-type dam, 14 ft tall and 120 ft long.
- Surface area
- 76 ac
- Normal storage
- 0 ac-ft
- Max storage
- 1,000 ac-ft
- Drainage area
- 1.43 sq mi
- Hazard class
- Significant
- Owner
- UNKNOWN
Source: USACE National Inventory of Dams, NID ID VT00063 · Operator website
County Ranking
Ranked #3 of 9 lakes in Washington County
Nearby Lakes in Washington County
Frequently asked questions about Curtis Pond
Where is Curtis Pond?
- Curtis Pond is a lake in Washington County, Vermont. LakeQuality grades it A for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Curtis Pond?
- Curtis Pond in Washington County, Vermont has a water quality grade of A (Excellent). Water clarity: 15.3 ft visibility. Phosphorus: 13.2 µg/L. Chlorophyll-a (algae): 3.2 µg/L. Surface area: 76 acres.
Is Curtis Pond safe to swim in?
- The A is nutrients and algae, not a swimming clearance. Check local advisories before you swim.
How deep is Curtis Pond?
- No published bathymetric survey covers Curtis Pond, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 47 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 76 acres.
Are there boat ramps on Curtis Pond?
- Curtis Pond has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Curtis Pond. Public access is listed as yes.
Explore Curtis Pond across LakeQuality
More Vermont Lake Rankings
Other Grade A Lakes in Vermont
Mesotrophic Lakes in Vermont
Where this data comes from
204 measurements from 2 monitoring stations, 2020–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Vermont Dept of Environmental Conservation
1VTDECWQ204 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 (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