Nutt Pond-Deep Spot
Nutt Pond-Deep Spot in Hillsborough County, New Hampshire has a water quality grade of C (Fair). Phosphorus: 26.8 µg/L. Chlorophyll-a (algae): 7.4 µg/L.
- Type
- Eutrophic
- Public access
- Yes
Nutt Pond-Deep Spot is a productive, nutrient-rich eutrophic lake in Hillsborough County, New Hampshire. Water quality is graded C based on 2 sampling years through 2025. Limited fish-species data available. Public access is available with 3 public boat landings. Compared to the 35 other monitored lakes in Hillsborough County, Nutt Pond-Deep Spot ranks #22 for water quality.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2025-08-27. Grade methodology: LakeGrade methodology.
Watch Nutt Pond-Deep Spot water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Grade onlyModerate
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.
Generally safe for swimming, moderate water quality
Water Quality Grade: C (Fair)
No clarity data. Phosphorus level: 26.8 µg/L. Chlorophyll-a: 7.4 µg/L. Trophic State Index: 51.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 26.8 µg/L | Fair |
| Chlorophyll-a (Algae) | 7.4 µg/L | Fair |
| Trophic State Index (TSI) | 51 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Nutt Pond-Deep Spot
Compare lakeside cabins, hotels, and vacation rentals near Nutt Pond-Deep Spot in Hillsborough 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 Nutt Pond-Deep Spot
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Recreation & Access
- Precourt ParkPublic
- Bedford Scenic EasementPublic
- Bass Island ParkPublic
Named access points from the USGS National Boat Ramps inventory, snapped within 5 km. More lakes with boat ramps
Fishing Nutt Pond-Deep Spot
EPA Impairment Status
Nutt Pond-Deep Spot is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit NHLAK700060803-01 · Official waterbody report · Matched by proximity (0.04 km)
County Ranking
Ranked #22 of 36 lakes in Hillsborough County
Nearby Lakes in Hillsborough County
Frequently asked questions about Nutt Pond-Deep Spot
Where is Nutt Pond-Deep Spot?
- Nutt Pond-Deep Spot is a lake in Hillsborough County, New Hampshire. LakeQuality grades it C for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Nutt Pond-Deep Spot?
- Nutt Pond-Deep Spot in Hillsborough County, New Hampshire has a water quality grade of C (Fair). Phosphorus: 26.8 µg/L. Chlorophyll-a (algae): 7.4 µg/L.
Is Nutt Pond-Deep Spot safe to swim in?
- Generally safe for swimming, moderate water quality. Nutt Pond-Deep Spot has a water quality grade of C (Fair). Algae concentration (chlorophyll-a) is 7.4 µg/L. Always check local health department advisories before swimming.
Are there boat ramps on Nutt Pond-Deep Spot?
- Nutt Pond-Deep Spot has 3 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Precourt Park, Bedford Scenic Easement, Bass Island Park. Public access is listed as yes.
Explore Nutt Pond-Deep Spot across LakeGrade
More New Hampshire Lake Rankings
Top 25 by overall water quality score
Top 25 by Secchi water clarity
Grade A/B + low algae filter
Panfish-rich, public access
Full state directory
Other Grade C Lakes in New Hampshire
Eutrophic Lakes in New Hampshire
Where this data comes from
62 measurements from 1 monitoring station, 2020–2025. Retrieved from the EPA Water Quality Portal on 2026-08-21.
Collected and reported by
- New Hampshire Department Of Environmental Services (BEACH)
1111330062 samples · 2020–2025
Analytical methods
- 10-115-01-1 F ~ LACHAT; Total Phosphorus- Manual persulfate digest
- CHLOROPHYLL A-B-C DETERMINATION (MODIFIED)
Monitoring station identifiers (1)
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
Impairment status from EPA ATTAINS 303(d) database
Named boat-access points from the USGS National Boat Ramps inventory