Spofford Lake
Spofford Lake in Cheshire County, New Hampshire is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 731 acres.
- Area
- 731 acres
- Public access
- Yes
Why Spofford Lake has no grade
We grade a lake only when its monitoring record clears the evidence bar: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Spofford Lake, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years).
Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.
Sampling is run by your state environmental agency and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Spofford Lake is a 731-acre lake in Cheshire County, New Hampshire. Limited fish-species data available. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2023-12-04. Grade methodology: LakeGrade methodology.
Watch Spofford Lake water quality
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Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Spofford Lake
These readings exist but do not meet the evidence bar for an A–F grade — see why.
No clarity data.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples |
Where to stay near Spofford Lake
Compare lakeside cabins, hotels, and vacation rentals near Spofford Lake in Cheshire 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 Spofford Lake
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 731 acres |
| Public Access | Yes |
No bathymetric survey has been published for Spofford Lake, so its depth is not documented here.
Recreation & Access
- Pierce IslandPublic
Named access points from the USGS National Boat Ramps inventory, snapped within 5 km. More lakes with boat ramps
Fishing Spofford Lake
Reservoir Info (USACE NID)
Spofford Lake is a man-made reservoir impounded by the Spofford Lake Dam (completed 1919), built primarily for recreation on the Partridge Brook; earth-type dam, 11 ft tall and 83 ft long.
- Surface area
- 731 ac
- Normal storage
- 6,030 ac-ft
- Max storage
- 10,650 ac-ft
- Drainage area
- 3.88 sq mi
- Hazard class
- Significant
- Owner
- TOWN OF CHESTERFIELD
Source: USACE National Inventory of Dams, NID ID NH00356 · Operator website
EPA Impairment Status
Spofford Lake 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 NHLAK801070503-01-01 · Official waterbody report
Graded lakes near Spofford Lake
Spofford Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Cheshire County
Frequently asked questions about Spofford Lake
Where is Spofford Lake?
- Spofford Lake is a lake in Cheshire County, New Hampshire. LakeQuality has not rated this lake (UNRATED) — there is not enough recent sampling to assign a letter.
What is the water quality grade for Spofford Lake?
- Spofford Lake in Cheshire County, New Hampshire is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 731 acres.
Is Spofford Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Spofford Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
Are there boat ramps on Spofford Lake?
- Spofford Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Pierce Island. Public access is listed as yes.
Explore Spofford Lake across LakeGrade
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Top 25 by Secchi water clarity
Grade A/B + low algae filter
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Where this data comes from
3 measurements from 1 monitoring station, 2023. Retrieved from the EPA Water Quality Portal on 2026-08-21.
Collected and reported by
- New Hampshire Department Of Environmental Services (BEACH)
111133003 samples · 2023
Analytical methods
- 10-115-01-1 F ~ LACHAT; Total Phosphorus- Manual persulfate digest
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