Angle Pond
Rockingham County, New HampshireView mapDirections
NHDES publishes the water-quality measurements for Angle Pond. Here is what has been measured.
- Impaired · Biotoxins
- Limited data
Angle Pond in Rockingham County, New Hampshire has water-quality measurements published by NHDES, shown here as reported. Water clarity: 10.3 ft visibility.
Angle Pond is a lake in Rockingham County, New Hampshire.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2022-07-18. Methodology: how these readings are compared.
What Angle Pond is good for
From access and monitoring records, not editorial picks.
- Clear water10.3 ft of visibility
Swimming conditions
No readingBacteria advisory
Nutrient and algae readings are not a swimming clearance. Angle Pond is listed impaired under Clean Water Act §303(d) (IR 5) for biotoxins, mercury, pH / acidity. Check local advisories before you swim.
Whether Angle Pond is safe to swim in today is a call for the New Hampshire Department of Environmental Services and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Angle Pond
These are the measurements NHDES publishes for Angle Pond, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Good clarity, visible to about 10.3 ft. TSI 44.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 10.3ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | No reading 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. | 44 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Angle Pond
Answers come straight from the public measurements and survey records on this page.
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Fishing Angle Pond
EPA Impairment Status
Angle Pond is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
Designated uses not supporting: Aquatic life, Fish consumption, Recreation.
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit NHLAK700061403-01-01 · Official waterbody report
Nearby Lakes in Rockingham County
Frequently asked questions about Angle Pond
Where is Angle Pond?
- Angle Pond is a lake in Rockingham County, New Hampshire. Its water-quality measurements are published by NHDES and shown on this page as reported.
What is the water quality of Angle Pond?
- Angle Pond in Rockingham County, New Hampshire has water-quality measurements published by NHDES, shown here as reported. Water clarity: 10.3 ft visibility.
Is Angle Pond safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Angle Pond is listed impaired under Clean Water Act §303(d) (IR 5) for biotoxins, mercury, pH / acidity. Check local advisories before you swim.
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Where this data comes from
2 measurements from 1 monitoring station, 2021–2022. Retrieved from the EPA Water Quality Portal on 2026-08-21.
Collected and reported by
- North American Lake Management Society
NALMS2 samples · 2021–2022
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.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database