Grout Pond Outlet
Windham County, VermontView mapDirections
Vermont DEC publishes the water-quality measurements for Grout Pond Outlet. Here is what has been measured.
- Limited data
Grout Pond Outlet in Windham County, Vermont has water-quality measurements published by Vermont DEC, shown here as reported. Phosphorus: 7.8 µg/L.
Grout Pond Outlet is a lake in Windham County, Vermont. Overall water quality is declining over recent sampling years.
Source: EPA Water Quality Portal sampling records, VT DEC, last sampled 2022-04-01. Methodology: how these readings are compared.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Grout Pond Outlet 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.
Water quality measurements for Grout Pond Outlet
These are the measurements Vermont DEC publishes for Grout Pond Outlet, 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 7.8 µg/L. TSI 34.
| 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 | 7.8µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 34 | Oligotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Low nutrients, clear water. No reading is a swimming clearance.
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Fishing Grout Pond Outlet
Water Quality Trend: Worsening
Based on 4 years of monitoring (2020–2023).
Water clarity
Worsening4 years
Phosphorus
Worsening+0.92 µg/L/yr4 years
Nearby Lakes in Windham County
Frequently asked questions about Grout Pond Outlet
Where is Grout Pond Outlet?
- Grout Pond Outlet is a lake in Windham County, Vermont. Its water-quality measurements are published by Vermont DEC and shown on this page as reported.
What is the water quality of Grout Pond Outlet?
- Grout Pond Outlet in Windham County, Vermont has water-quality measurements published by Vermont DEC, shown here as reported. Phosphorus: 7.8 µg/L.
Is Grout Pond Outlet safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Explore Grout Pond Outlet across LakeQuality
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Where this data comes from
11 measurements from 1 monitoring station, 2021–2022. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Vermont Dept of Environmental Conservation
1VTDECWQ11 samples · 2021–2022
Analytical methods
- EPA approved Alternate Test Procedure for 4500 P H. Has a 28 day hold without acid preservation.
- 2120 B ~ Color in Water by Visual Comparison
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.