Lake Waukewan-Boat Launch
Lake Waukewan-Boat Launch in Belknap County, New Hampshire is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 360 acres.
- Area
- 360 acres
- Public access
- Yes
Why Lake Waukewan-Boat Launch 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 Lake Waukewan-Boat Launch, 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.
Lake Waukewan-Boat Launch is a 360-acre lake in Belknap County, New Hampshire. Limited fish-species data available. Public access is available with 2 public boat landings.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2025-04-06. Grade methodology: LakeGrade methodology.
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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 Lake Waukewan-Boat Launch
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 Lake Waukewan-Boat Launch
Compare lakeside cabins, hotels, and vacation rentals near Lake Waukewan-Boat Launch in Belknap 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 Lake Waukewan-Boat Launch
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 360 acres |
| Public Access | Yes |
No bathymetric survey has been published for Lake Waukewan-Boat Launch, so its depth is not documented here.
Recreation & Access
- Lake WinnipesaukeePublic
- Lake WaukewanPublic
Named access points from the USGS National Boat Ramps inventory, snapped within 5 km. More lakes with boat ramps
Fishing Lake Waukewan-Boat Launch
Reservoir Info (USACE NID)
Lake Waukewan-Boat Launch is a man-made reservoir impounded by the Lake Waukewan Dam (completed 1872), built primarily for recreation on the Ashuelot River; concrete-type dam, 13 ft tall and 190 ft long.
- Surface area
- 360 ac
- Normal storage
- 2,760 ac-ft
- Max storage
- 3,588 ac-ft
- Drainage area
- 26.09 sq mi
- Hazard class
- High
- Owner
- ASHUELOT POND DAM VILLAGE DISTRICT
Source: USACE National Inventory of Dams, NID ID NH00306 · Operator website · Matched by proximity (0.94 km)
EPA Impairment Status
Lake Waukewan-Boat Launch is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit NHLAK700020108-02-03 · Official waterbody report · Matched by proximity (0.32 km)
Graded lakes near Lake Waukewan-Boat Launch
Lake Waukewan-Boat Launch has no grade, but these lakes within a short drive do.
Nearby Lakes in Belknap County
Frequently asked questions about Lake Waukewan-Boat Launch
Where is Lake Waukewan-Boat Launch?
- Lake Waukewan-Boat Launch is a lake in Belknap 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 Lake Waukewan-Boat Launch?
- Lake Waukewan-Boat Launch in Belknap County, New Hampshire is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 360 acres.
Is Lake Waukewan-Boat Launch safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Lake Waukewan-Boat Launch 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 Lake Waukewan-Boat Launch?
- Lake Waukewan-Boat Launch has 2 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Lake Winnipesaukee, Lake Waukewan. Public access is listed as yes.
Explore Lake Waukewan-Boat Launch 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 Lakes in New Hampshire
Where this data comes from
5 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)
111133005 samples · 2020–2025
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