Dutchman Pond-Hull-Schulman
Sullivan County, New HampshireView mapDirections
NHDES publishes the water-quality measurements for Dutchman Pond-Hull-Schulman. Here is what has been measured.
- Impaired · Mercury
- Limited data
Dutchman Pond-Hull-Schulman in Sullivan County, New Hampshire has water-quality measurements published by NHDES, shown here as reported. Phosphorus: 13.1 µg/L.
Dutchman Pond-Hull-Schulman is a lake in Sullivan County, New Hampshire.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2025-07-22. Methodology: how these readings are compared.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Dutchman Pond-Hull-Schulman is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury, pH / acidity. Check local advisories before you swim.
Whether Dutchman Pond-Hull-Schulman 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 Dutchman Pond-Hull-Schulman
These are the measurements NHDES publishes for Dutchman Pond-Hull-Schulman, 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 13.1 µg/L. TSI 41.
| 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 | 13.1µg/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. | 41 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
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Fishing Dutchman Pond-Hull-Schulman
EPA Impairment Status
Dutchman Pond-Hull-Schulman is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).
Causes of impairment
Designated uses not supporting: Aquatic life, Fish consumption.
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit NHLAK801060402-06 · Official waterbody report
Nearby Lakes in Sullivan County
Frequently asked questions about Dutchman Pond-Hull-Schulman
Where is Dutchman Pond-Hull-Schulman?
- Dutchman Pond-Hull-Schulman is a lake in Sullivan County, New Hampshire. Its water-quality measurements are published by NHDES and shown on this page as reported.
What is the water quality of Dutchman Pond-Hull-Schulman?
- Dutchman Pond-Hull-Schulman in Sullivan County, New Hampshire has water-quality measurements published by NHDES, shown here as reported. Phosphorus: 13.1 µg/L.
Is Dutchman Pond-Hull-Schulman safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Dutchman Pond-Hull-Schulman is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury, pH / acidity. Check local advisories before you swim.
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Where this data comes from
1 measurement from 1 monitoring station, 2025. Retrieved from the EPA Water Quality Portal on 2026-08-21.
Collected and reported by
- New Hampshire Department Of Environmental Services (BEACH)
111133001 sample · 2025
Analytical methods
- 10-115-01-1 F ~ LACHAT; Total Phosphorus- Manual persulfate digest
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