Ten Mile River Lake
Bristol County, Massachusetts111 acresView mapDirections
Nutrients and algae run above the regional average.
- Eutrophic
- Impaired · Algal growth
- #3 of 5 in the county
- Public access
- Limited data
Ten Mile River Lake in Bristol County, Massachusetts has a water quality grade of D (Nutrient-rich). Chlorophyll-a (algae): 19.8 µg/L. Surface area: 111 acres.
- Area
- 111 acres
- Type
- Eutrophic
- Chlorophyll-a
- 19.8 µg/L
- Public access
- Yes
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Stays near Ten Mile River Lake
Compare lakeside cabins, hotels, and vacation rentals near Ten Mile River Lake in Bristol County, Massachusetts — 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. The water-quality grade measures nutrients and algae, not lodging — cabins and rentals around Ten Mile River Lake are listed below.
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Ten Mile River Lake is a 111-acre productive, nutrient-rich eutrophic lake in Bristol County, Massachusetts. Water quality is graded D based on 1 sampling years through 2018. Limited fish-species data available. Public access is available. Compared to the 4 other monitored lakes in Bristol County, Ten Mile River Lake ranks #3 for water quality.
Source: EPA Water Quality Portal sampling records, MassDEP, last sampled 2018-08-22. Grade methodology: LakeQuality methodology.
Swimming Safety
Grade onlyLimited data
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.
The D is nutrients and algae, not a swimming clearance. Ten Mile River Lake is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth, mercury, nutrients (phosphorus, nitrogen), oxygen depletion (low DO). Check local advisories before you swim.
Water Quality Grade: D (Nutrient-rich)
No clarity data. Chlorophyll-a 19.8 µg/L. TSI 60. The letter is not a swimming clearance.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | 19.8 µg/L | Poor |
| Trophic State Index (TSI) | 60 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 111 acres |
| Public Access | Yes |
No bathymetric survey has been published for Ten Mile River Lake, so its depth is not documented here.
Fishing Ten Mile River Lake
Reservoir Info (USACE NID)
Ten Mile River Lake is a man-made reservoir impounded by the Falls Pond Dam (completed 1890), built primarily for flood risk reduction on the Tenmile River; earth-type dam, 20 ft tall and 160 ft long.
- Surface area
- 111 ac
- Normal storage
- 807 ac-ft
- Max storage
- 1,420 ac-ft
- Drainage area
- 8.3 sq mi
- Hazard class
- High
- Owner
- Town of North Attleboro
All listed purposes: Flood Risk Reduction;Recreation.
Source: USACE National Inventory of Dams, NID ID MA00865 · Operator website · Matched by proximity (0.52 km)
EPA Impairment Status
Ten Mile River Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit MA52013 · Official waterbody report · Matched by proximity (0.2 km)
County Ranking
Ranked #3 of 5 lakes in Bristol County
Nearby Lakes in Bristol County
Frequently asked questions about Ten Mile River Lake
Where is Ten Mile River Lake?
- Ten Mile River Lake is a lake in Bristol County, Massachusetts. LakeQuality grades it D for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Ten Mile River Lake?
- Ten Mile River Lake in Bristol County, Massachusetts has a water quality grade of D (Nutrient-rich). Chlorophyll-a (algae): 19.8 µg/L. Surface area: 111 acres.
Is Ten Mile River Lake safe to swim in?
- The D is nutrients and algae, not a swimming clearance. Ten Mile River Lake is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth, mercury, nutrients (phosphorus, nitrogen), oxygen depletion (low DO). Check local advisories before you swim.
Explore Ten Mile River Lake across LakeQuality
Species activity outlook by water temperature and season
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Where this data comes from
3 measurements from 1 monitoring station, 2018. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Massachusetts Department of Environmental Protection (MassDEP)
MASSDEP3 samples · 2018
Analytical methods
- 445.0 ~ EPA; Chlorophyll and Pheophytin in Algae by Fluorescence
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