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LakeQuality

Dodge Pond-Inlet

B
Grade B — Good
Good · #12 of 27 lakes in the county · Mesotrophic
Mesotrophic

Dodge Pond-Inlet in Grafton County, New Hampshire has a water quality grade of B (Good). Phosphorus: 12.1 µg/L.

Type
Mesotrophic

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Dodge Pond-Inlet is a mesotrophic lake in Grafton County, New Hampshire. Water quality is graded B based on 1 sampling years through 2025. Compared to the 26 other monitored lakes in Grafton County, Dodge Pond-Inlet ranks #12 for water quality.

Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2025-07-06. Grade methodology: LakeGrade methodology.

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Swimming Safety

Grade only

Low algae

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.

Good for swimming, clear water with low algae levels

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Water Quality Grade: B (Good)

No clarity data. Phosphorus level: 12.1 µg/L. Trophic State Index: 40.

MetricValueGrade
Water Clarity (Secchi Depth)No recent samples
Phosphorus12.1 µg/LGood
Chlorophyll-a (Algae)No recent samples
Trophic State Index (TSI)40Mesotrophic

Moderate nutrients, good water quality

Where to stay near Dodge Pond-Inlet

Compare lakeside cabins, hotels, and vacation rentals near Dodge Pond-Inlet 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.

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Fishing Dodge Pond-Inlet

EPA Impairment Status

Dodge Pond-Inlet is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).

Causes of impairment

Algal growthMercuryNutrients (phosphorus, nitrogen)Oxygen depletion (low DO)

A Total Maximum Daily Load (TMDL) plan has been approved.

Source: EPA ATTAINS assessment unit NHLAK801030502-04 · Official waterbody report · Matched by proximity (0.57 km)

County Ranking

Ranked #12 of 27 lakes in Grafton County

Nearby Lakes in Grafton County

Frequently asked questions about Dodge Pond-Inlet

Where is Dodge Pond-Inlet?

Dodge Pond-Inlet is a lake in Grafton County, New Hampshire. LakeQuality grades it B for nutrients and algae. The letter is not a swimming clearance.

What is the water quality grade for Dodge Pond-Inlet?

Dodge Pond-Inlet in Grafton County, New Hampshire has a water quality grade of B (Good). Phosphorus: 12.1 µg/L.

Is Dodge Pond-Inlet safe to swim in?

Good for swimming, clear water with low algae levels. Dodge Pond-Inlet has a water quality grade of B (Good). Always check local health department advisories before swimming.

Where this data comes from

9 measurements from 1 monitoring station, 2021–2025. Retrieved from the EPA Water Quality Portal on 2026-08-21.

Collected and reported by

  • New Hampshire Department Of Environmental Services (BEACH)111133009 samples · 2021–2025

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