Mooney-Clark Public Landing Lake
Mooney-Clark Public Landing Lake in Grafton County, New Hampshire has a water quality grade of C (Fair). Phosphorus: 16.2 µg/L. Surface area: 3.7 acres.
- Area
- 4 acres
- Type
- Mesotrophic
- Public access
- Yes
Mooney-Clark Public Landing Lake is a 4-acre mesotrophic lake in Grafton County, New Hampshire. Water quality is graded C based on 1 sampling years through 2025. Limited fish-species data available. Public access is available with 1 public boat landing. Compared to the 26 other monitored lakes in Grafton County, Mooney-Clark Public Landing Lake ranks #25 for water quality.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2025-08-14. Grade methodology: LakeGrade methodology.
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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: 16.2 µg/L. Trophic State Index: 44.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 16.2 µg/L | Fair |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 44 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Mooney-Clark Public Landing Lake
Compare lakeside cabins, hotels, and vacation rentals near Mooney-Clark Public Landing Lake in Grafton 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 Mooney-Clark Public Landing Lake
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 4 acres |
| Public Access | Yes |
No bathymetric survey has been published for Mooney-Clark Public Landing Lake, so its depth is not documented here.
Recreation & Access
- Mooney Clark LandingPublic
Named access points from the USGS National Boat Ramps inventory, snapped within 5 km. More lakes with boat ramps
Fishing Mooney-Clark Public Landing Lake
Reservoir Info (USACE NID)
Mooney-Clark Public Landing Lake is a man-made reservoir impounded by the New Hampton Village Prct Ww Lagoon (completed 1930), built primarily for other; earth-type dam, 9 ft tall and 1,200 ft long.
- Surface area
- 3.7 ac
- Normal storage
- 14.8 ac-ft
- Max storage
- 27 ac-ft
- Drainage area
- 0 sq mi
- Hazard class
- Significant
- Owner
- NEW HAMPTON VILLAGE PRECINCT
Source: USACE National Inventory of Dams, NID ID NH03554 · Operator website · Matched by proximity (0.74 km)
EPA Impairment Status
Mooney-Clark Public Landing Lake 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 NHIMP700010801-06 · Official waterbody report · Matched by proximity (1.59 km)
County Ranking
Ranked #25 of 27 lakes in Grafton County
Nearby Lakes in Grafton County
Frequently asked questions about Mooney-Clark Public Landing Lake
Where is Mooney-Clark Public Landing Lake?
- Mooney-Clark Public Landing Lake is a lake in Grafton 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 Mooney-Clark Public Landing Lake?
- Mooney-Clark Public Landing Lake in Grafton County, New Hampshire has a water quality grade of C (Fair). Phosphorus: 16.2 µg/L. Surface area: 3.7 acres.
Is Mooney-Clark Public Landing Lake safe to swim in?
- Generally safe for swimming, moderate water quality. Mooney-Clark Public Landing Lake has a water quality grade of C (Fair). Always check local health department advisories before swimming.
Are there boat ramps on Mooney-Clark Public Landing Lake?
- Mooney-Clark Public Landing Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Mooney Clark Landing. Public access is listed as yes.
Explore Mooney-Clark Public Landing Lake 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
Mesotrophic Lakes in New Hampshire
Where this data comes from
49 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)
1111330049 samples · 2020–2025
Analytical methods
- 10-115-01-1 F ~ LACHAT; Total Phosphorus- Manual persulfate digest
- Turbidity by Nephelometry
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