Lower Crow Hill Pond
Worcester County, Massachusetts13 acresView mapDirections
MassDEP publishes the water-quality measurements for Lower Crow Hill Pond. Here is what has been measured.
- Mesotrophic
- Impaired · Nuisance exotic species
- Limited data
Lower Crow Hill Pond in Worcester County, Massachusetts has water-quality measurements published by MassDEP, shown here as reported. Chlorophyll-a (algae): 2.9 µg/L. Surface area: 13 acres.
Lower Crow Hill Pond is a 13-acre mesotrophic lake in Worcester County, Massachusetts. Compared to the 23 other monitored lakes in Worcester County, Lower Crow Hill Pond ranks #13 for water quality.
Source: EPA Water Quality Portal sampling records, MassDEP, last sampled 2017-09-19. Methodology: how these readings are compared.
Swimming conditions
Readings onlyLimited data
Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrient and algae readings are not a swimming clearance. Lower Crow Hill Pond is listed impaired under Clean Water Act §303(d) (IR 4C) for nuisance exotic species. Check local advisories before you swim.
Whether Lower Crow Hill Pond is safe to swim in today is a call for the Massachusetts Department of Environmental Protection and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Lower Crow Hill Pond
These are the measurements MassDEP publishes for Lower Crow Hill Pond, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. Chlorophyll-a 2.9 µg/L. TSI 41.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | No reading How deep a black-and-white disk stays visible from the surface. Higher is clearer. | |
| Total phosphorus | No reading The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. | |
| Chlorophyll-a (algae) | 2.9µg/L | Good GoodFairPoor |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 41 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Lower Crow Hill Pond
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
13 acres
No bathymetric survey has been published for Lower Crow Hill Pond, so its depth is not documented here.
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Fishing Lower Crow Hill Pond
Reservoir Info (USACE NID)
Lower Crow Hill Pond is a man-made reservoir impounded by the Upper Crow Hills Pond Dam (completed 1956), built primarily for recreation on the Flag Brook; earth-type dam, 11 ft tall and 250 ft long.
- Surface area
- 13 ac
- Normal storage
- 28 ac-ft
- Max storage
- 43 ac-ft
- Drainage area
- 0.22 sq mi
- Hazard class
- Significant
- Owner
- MA Department of Conservation and Recreation
Source: USACE National Inventory of Dams, NID ID MA03273 · Operator website · Matched by proximity (0.25 km)
EPA Impairment Status
Lower Crow Hill Pond is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 4C).
Causes of impairment
Designated uses not supporting: Aquatic life.
Source: EPA ATTAINS assessment unit MA81026 · Official waterbody report
Nearby Lakes in Worcester County
Frequently asked questions about Lower Crow Hill Pond
Where is Lower Crow Hill Pond?
- Lower Crow Hill Pond is a lake in Worcester County, Massachusetts. Its water-quality measurements are published by MassDEP and shown on this page as reported.
What is the water quality of Lower Crow Hill Pond?
- Lower Crow Hill Pond in Worcester County, Massachusetts has water-quality measurements published by MassDEP, shown here as reported. Chlorophyll-a (algae): 2.9 µg/L. Surface area: 13 acres.
Is Lower Crow Hill Pond safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Lower Crow Hill Pond is listed impaired under Clean Water Act §303(d) (IR 4C) for nuisance exotic species. Check local advisories before you swim.
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Where this data comes from
3 measurements from 1 monitoring station, 2017. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Massachusetts Department of Environmental Protection (MassDEP)
MASSDEP3 samples · 2017
Analytical methods
- 445.0 ~ EPA; Chlorophyll and Pheophytin in Algae by Fluorescence
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database