Pawtuckaway Lake-Drowns Dam
Rockingham County, New Hampshire900 acresView mapDirections
NHDES publishes the water-quality measurements for Pawtuckaway Lake-Drowns Dam. Here is what has been measured.
- Public access
- Limited data
Pawtuckaway Lake-Drowns Dam in Rockingham County, New Hampshire has water-quality measurements published by NHDES, shown here as reported. Phosphorus: 17.3 µg/L. Surface area: 900 acres.
Pawtuckaway Lake-Drowns Dam is a 900-acre lake in Rockingham County, New Hampshire. Limited fish-species data available. Public access is available.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2024-09-09. 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 Pawtuckaway Lake-Drowns Dam 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 Pawtuckaway Lake-Drowns Dam
These are the measurements NHDES publishes for Pawtuckaway Lake-Drowns Dam, 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 17.3 µg/L. TSI 45.
| 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 | 17.3µg/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. | 45 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Pawtuckaway Lake-Drowns Dam
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
900 acres
Public access
Yes
Listed by NHDES
No bathymetric survey has been published for Pawtuckaway Lake-Drowns Dam, so its depth is not documented here.
Stays via Stay22
Stays near Pawtuckaway Lake-Drowns Dam
Compare lakeside cabins, hotels, and vacation rentals near Pawtuckaway Lake-Drowns Dam in Rockingham County, New Hampshire — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near Pawtuckaway Lake-Drowns Dam
Prices for Oct 9–11, 4 adults. Change dates on the map below.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Follow Pawtuckaway Lake-Drowns Dam’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Pawtuckaway Lake-Drowns Dam
Reservoir Info (USACE NID)
Pawtuckaway Lake-Drowns Dam is a man-made reservoir impounded by the Pawtuckaway Lake /Drowns Dam (completed 1842), built primarily for recreation on the Tr Bean River; earth-type dam, 18 ft tall and 235 ft long.
- Surface area
- 900 ac
- Normal storage
- 11,500 ac-ft
- Max storage
- 11,700 ac-ft
- Drainage area
- 21 sq mi
- Hazard class
- Significant
- Owner
- NH DES WATER DIVISION
Source: USACE National Inventory of Dams, NID ID NH00136 · Operator website
Nearby Lakes in Rockingham County
Frequently asked questions about Pawtuckaway Lake-Drowns Dam
Where is Pawtuckaway Lake-Drowns Dam?
- Pawtuckaway Lake-Drowns Dam 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 Pawtuckaway Lake-Drowns Dam?
- Pawtuckaway Lake-Drowns Dam in Rockingham County, New Hampshire has water-quality measurements published by NHDES, shown here as reported. Phosphorus: 17.3 µg/L. Surface area: 900 acres.
Is Pawtuckaway Lake-Drowns Dam safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Can I fish at Pawtuckaway Lake-Drowns Dam?
- Public access to Pawtuckaway Lake-Drowns Dam is listed as yes on the lake record. Seasons, size and bag limits, and whether you need a license are set by New Hampshire's fish and wildlife agency, so check its current regulations before you go.
Explore Pawtuckaway Lake-Drowns Dam across LakeQuality
More lakes in New Hampshire
Other Lakes in New Hampshire
Mesotrophic Lakes in New Hampshire
Where this data comes from
2 measurements from 1 monitoring station, 2024. Retrieved from the EPA Water Quality Portal on 2026-08-21.
Collected and reported by
- New Hampshire Department Of Environmental Services (BEACH)
111133002 samples · 2024
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.