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Massachusetts State Report
Other states that contain this watershed:
New Hampshire, Nashua Watershed

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Water Quality Data Available for this Watershed

Massachusetts, Nashua Watershed


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Features

Assessment Summary for Reporting Year 2010
Massachusetts, Nashua Watershed

Description of this table
Click here to list Threatened and Impaired Waters Only
NOTE: Click on the underlined "Waterbody Name" to view a Waterbody report.
Waterbody Name Waterbody ID Location Map Waterbody Type Size Units Status State TMDL Development Status
Ashby Reservoir MA81001 Ashby Waterbody Map Freshwater Lake 36.0 Acres Not_Assessed  
Asnebumskit Pond MA81002 Paxton Waterbody Map Freshwater Lake 43.0 Acres Not_Assessed  
Bare Hill Pond MA81007 Harvard Waterbody Map Freshwater Lake 311.0 Acres Impaired TMDL completed
Barrett Pond MA81162 Leominster Waterbody Map Freshwater Lake 7.0 Acres Not_Assessed  
Bartlett Pond MA81009 Leominster Waterbody Map Freshwater Lake 23.0 Acres Not_Assessed  
Bixby Reservoir MA81010 Townsend Waterbody Map Freshwater Lake 21.0 Acres Not_Assessed  
Catacoonamug Brook MA81-16 Outlet Lake Shirley, Lunenburg To Confluence With Nashua River, Shirley/Harvard. Waterbody Map River 3.2 Miles Good  
Chaffin Pond MA81017 Holden Waterbody Map Freshwater Lake 90.0 Acres Impaired Non-pollutant impairment
Chaffins Brook MA81-33 Headwaters South Of Malden Street/West Of Wachusett Street, Holden To Inlet Of Unionville Pond, Holden. Waterbody Map River .9 Miles Good  
Coachlace Pond MA81019 Clinton Waterbody Map Freshwater Lake 31.0 Acres Not_Assessed  
Coon Tree Pond MA81168 Pepperell Waterbody Map Freshwater Lake 29.0 Acres Not_Assessed  
Crocker Pond MA81025 Westminster Waterbody Map Freshwater Lake 101.0 Acres Not_Assessed  
Dawson Pond MA81028 Holden Waterbody Map Freshwater Lake 22.0 Acres Impaired Non-pollutant impairment
Eagle Lake MA81034 Holden Waterbody Map Freshwater Lake 56.0 Acres Impaired Non-pollutant impairment
East Wachusett Brook MA81-30 Headwaters Northeast Of Little Wachusett Mountain, Princeton To Confluence With Stillwater River, Sterling. Waterbody Map River 4.6 Miles Good  
East Waushacum Pond MA81035 Sterling Waterbody Map Freshwater Lake 182.0 Acres Not_Assessed  
Fall Brook Reservoir MA81038 Leominster Waterbody Map Freshwater Lake 88.0 Acres Not_Assessed  
Fitchburg Reservoir MA81043 Ashby Waterbody Map Freshwater Lake 150.0 Acres Not_Assessed  
Flag Brook MA81-10 Outlet Crocker Pond, Westminster To Confluence With North Nashua River, Fitchburg (Excluding Approximately 0.7 Miles Through Sawmill Pond Segment Ma81118). Waterbody Map River 2.2 Miles Good  
Flannagan Pond MA81044 Ayer Waterbody Map Freshwater Lake 80.0 Acres Impaired Non-pollutant impairment
Fort Pond MA81046 Lancaster Waterbody Map Freshwater Lake 76.0 Acres Impaired TMDL needed
Gates Brook MA81-24 Headwaters West Of Prospect Street, West Boylston To Inlet Wachusett Reservoir (Gates Cove), West Boylston. Waterbody Map River 3.4 Miles Impaired TMDL needed
Grove Pond MA81053 Ayer Waterbody Map Freshwater Lake 67.0 Acres Impaired TMDL needed
Haynes Reservoir MA81055 Leominster Waterbody Map Freshwater Lake 56.0 Acres Not_Assessed  
Heald Pond MA81056 Pepperell Waterbody Map Freshwater Lake 28.0 Acres Not_Assessed  
Hickory Hills Lake MA81031 Lunenburg Waterbody Map Freshwater Lake 310.0 Acres Impaired TMDL completed
Hy-Crest Pond MA81060 Sterling Waterbody Map Freshwater Lake 104.0 Acres Not_Assessed  
James Brook MA81-20 Headwaters, Groton To Confluence With Nashua River, Ayer/Groton. Waterbody Map River 3.9 Miles Impaired TMDL needed
Kendall Reservoir MA81062 Holden Waterbody Map Freshwater Lake 179.0 Acres Not_Assessed  
Lake Samoset MA81116 Leominster Waterbody Map Freshwater Lake 35.0 Acres Impaired Non-pollutant impairment
Lake Shirley MA81122 Lunenburg Waterbody Map Freshwater Lake 360.0 Acres Impaired TMDL needed
Lake Wampanoag MA81151 Ashburnham/Gardner Waterbody Map Freshwater Lake 224.0 Acres Impaired TMDL completed
Lake Whalom MA81154 Lunenburg/Leominster Waterbody Map Freshwater Lake 96.0 Acres Impaired Non-pollutant impairment
Lancaster Millpond MA81065 Clinton Waterbody Map Freshwater Lake 21.0 Acres Not_Assessed  
Lincoln Pond MA81070 Ashburnham Waterbody Map Freshwater Lake 31.0 Acres Not_Assessed  
Long Pond MA81073 Ayer/Groton Waterbody Map Freshwater Lake 46.0 Acres Not_Assessed  
Lovell Reservoir MA81074 Fitchburg Waterbody Map Freshwater Lake 35.0 Acres Not_Assessed  
Lower Crow Hill Pond MA81026 Princeton/Westminster Waterbody Map Freshwater Lake 14.0 Acres Not_Assessed  
Malagasco Brook MA81-29 Headwaters Southwest Of Apron Hill, Boylston Through Pine Swamp To The Inlet Of Wachusett Reservoir (South Bay), Boylston. Waterbody Map River 2.4 Miles Impaired TMDL needed
Malden Brook MA81-27 Headwaters Northeast Of Lee Street, West Boylston To The Inlet Of Wachusett Reservoir (Thomas Basin), West Boylston. Waterbody Map River 1.9 Miles Good  
Maple Spring Pond MA81077 Holden Waterbody Map Freshwater Lake 39.0 Acres Not_Assessed  
Massapoag Pond MA81080 Lunenburg Waterbody Map Freshwater Lake 64.0 Acres Not_Assessed  
Meetinghouse Pond MA81083 Westminster Waterbody Map Freshwater Lake 151.0 Acres Not_Assessed  
Mirror Lake MA81084 Fitchburg Waterbody Map Freshwater Lake 6.0 Acres Not_Assessed  
Mirror Lake MA81085 Harvard Waterbody Map Freshwater Lake 28.0 Acres Impaired TMDL needed
Monoosnuc Brook MA81-13 Outlet Of Simonds Pond, Leominster To Confluence With North Nashua River, Leominster (Through Former Pond Segments Pierce Pond Ma 81101 And Rockwell Pond Ma81112). Waterbody Map River 6.1 Miles Impaired TMDL needed
Morse Reservoir MA81086 Leominster Waterbody Map Freshwater Lake 15.0 Acres Not_Assessed  
Muschopauge Pond MA81089 Rutland Waterbody Map Freshwater Lake 61.0 Acres Not_Assessed  
Nashua River MA81-05 Confluence With North Nashua River, Lancaster To Confluence With Squannacook River, Shirley/Groton/Ayer. Waterbody Map River 14.2 Miles Impaired TMDL needed
Nashua River MA81-06 Confluence With Squannacook River, Shirley/Groton/Ayer To Pepperell Dam, Pepperell. (Through Pepperell Pond Formerly Segment Ma81167) Waterbody Map River 9.1 Miles Impaired TMDL needed
Nashua River MA81-07 Pepperell Dam, Pepperell To New Hampshire State Line, Pepperell/Dunstable. Waterbody Map River 3.7 Miles Impaired TMDL needed
Nashua River MA81-08 ("South Branch" Nashua River) Outlet Lancaster Millpond, Clinton To Clinton Wwtp Discharge, Clinton. Waterbody Map River 2.8 Miles Good  
Nashua River MA81-09 ("South Branch" Nashua River) Clinton Wwtp Discharge, Clinton To Confluence With North Nashua River, Lancaster. Waterbody Map River 1.8 Miles Impaired TMDL needed
Nissitissit River MA81-21 New Hampshire State Line, Pepperell To Confluence With Nashua River, Pepperell. Waterbody Map River 4.6 Miles Impaired TMDL needed
Nonacoicus Brook MA81-17 Outlet Plow Shop Pond, Ayer To Confluence With Nashua River, Ayer/Shirley. Waterbody Map River 1.4 Miles Impaired TMDL needed
North Nashua River MA81-01 Outlet Snows Millpond, Fitchburg To Fitchburg Paper Company Dam #1, Fitchburg. Waterbody Map River 1.7 Miles Impaired TMDL needed
North Nashua River MA81-02 Fitchburg Paper Company Dam #1, Fitchburg To Fitchburg East Wwtp Outfall, Leominster. Waterbody Map River 6.9 Miles Impaired TMDL needed
North Nashua River MA81-03 Fitchburg East Wwtp Outfall, Leominster To Leominster Wwtp Outfall, Leominster. Waterbody Map River 1.6 Miles Impaired TMDL needed
North Nashua River MA81-04 Leominster Wwtp Outfall, Leominster To Confluence With Nashua River, Lancaster. Waterbody Map River 10.4 Miles Impaired TMDL needed
Notown Reservoir MA81092 Leominster Waterbody Map Freshwater Lake 240.0 Acres Not_Assessed  
Paradise Pond MA81097 Princeton Waterbody Map Freshwater Lake 61.0 Acres Impaired Non-pollutant impairment
Partridge Pond MA81098 Westminster Waterbody Map Freshwater Lake 25.0 Acres Impaired TMDL needed
Phillips Brook MA81-12 Outlet Winnekeag Lake, Ashburnham To Westminster Street (Route 2a/31), Fitchburg. Waterbody Map River 8.4 Miles Good  
Pine Hill Reservoir MA81102 Paxton/Holden/Rutland Waterbody Map Freshwater Lake 336.0 Acres Not_Assessed  
Plow Shop Pond MA81103 Ayer Waterbody Map Freshwater Lake 29.0 Acres Impaired TMDL needed
Quinapoxet Reservoir MA81108 Holden/Princeton Waterbody Map Freshwater Lake 266.0 Acres Not_Assessed  
Quinapoxet River MA81-32 Outlet Quinapoxet Reservoir, Holden To Inlet Of Wachusett Reservoir (Thomas Basin), West Boylston. Waterbody Map River 7.9 Miles Impaired Non-pollutant impairment
Robbins Pond MA81111 Harvard Waterbody Map Freshwater Lake 11.0 Acres Impaired Non-pollutant impairment
Round Meadow Pond MA81114 Westminster Waterbody Map Freshwater Lake 54.0 Acres Not_Assessed  
Sandy Pond MA81117 Ayer Waterbody Map Freshwater Lake 69.0 Acres Not_Assessed  
Sawmill Pond MA81118 Fitchburg/Westminster Waterbody Map Freshwater Lake 65.0 Acres Impaired Non-pollutant impairment
Scarletts Brook MA81-25 Headwaters West Of West Boylston Street (Route 12), West Boylston To Confluence With Gates Brook, West Boylston. Waterbody Map River .5 Miles Good  
Scott Reservoir MA81119 Fitchburg Waterbody Map Freshwater Lake 33.0 Acres Not_Assessed  
Snows Millpond MA81127 Fitchburg/Westminster Waterbody Map Freshwater Lake 38.0 Acres Not_Assessed  
South Meadow Pond MA81129 [East Basin] Clinton Waterbody Map Freshwater Lake 37.0 Acres Not_Assessed  
South Meadow Pond MA81165 [West Basin] Clinton/Lancaster Waterbody Map Freshwater Lake 34.0 Acres Not_Assessed  
Spectacle Pond MA81132 Lancaster Waterbody Map Freshwater Lake 61.0 Acres Not_Assessed  
Squannacook River MA81-18 Confluence Mason And Willard Brooks, Townsend To Hollingsworth And Vose Dam, Groton/Shirley. (Through Harbor Pond Formerly Segment Ma81054) Waterbody Map River 12.6 Miles Impaired TMDL needed
Squannacook River MA81-19 Hollingsworth And Vose Dam, Groton/Shirley To Confluence With Nashua River, Shirley/Groton/Ayer. Waterbody Map River 3.7 Miles Good  
Still River MA81-15 From Route 117, Bolton To Confluence With Nashua River, Harvard/Lancaster. Waterbody Map River 2.7 Miles Not_Assessed  
Stillwater River MA81-31 Confluence Of Justice And Keyes Brooks, Princeton/Sterling To The Inlet Of Wachusett Reservoir (Stillwater Basin), Sterling. Waterbody Map River 6.7 Miles Good  
Streeter Pond MA81136 Paxton/Holden Waterbody Map Freshwater Lake 18.0 Acres Not_Assessed  
Stuart Pond MA81137 Sterling Waterbody Map Freshwater Lake 42.0 Acres Impaired Non-pollutant impairment
Stump Pond MA81171 Holden Waterbody Map Freshwater Lake 27.0 Acres Impaired Non-pollutant impairment
Sucker Brook MA81-23 Outlet Coon Tree Pond, Pepperell To Confluence With Nissitissit River, Pepperell. Waterbody Map River 4.0 Miles Good  
The Quag MA81170 Sterling Waterbody Map Freshwater Lake 32.0 Acres Not_Assessed  
Trout Brook MA81-26 Outlet Cournoyer Pond, Holden To Confluence With Quinepoxet River, Holden. Waterbody Map River 1.9 Miles Good  
Unionville Pond MA81143 Holden Waterbody Map Freshwater Lake 19.0 Acres Impaired Non-pollutant impairment
Unnamed Tributary MA81-35 Aka-"Lower Chaffin Brook" - Outlet Unionville Pond, Holden To Confluence With Quinepoxet River, Holden. Waterbody Map River .5 Miles Impaired TMDL needed
Upper Crow Hill Pond MA81169 Westminster Waterbody Map Freshwater Lake 5.0 Acres Not_Assessed  
Vinton Pond MA81145 Townsend Waterbody Map Freshwater Lake 16.0 Acres Not_Assessed  
Wachusett Lake MA81146 Westminster/Princeton Waterbody Map Freshwater Lake 129.0 Acres Not_Assessed  
Wachusett Reservoir MA81147 Boylston/West Boylston/Clinton/Sterling Waterbody Map Freshwater Lake 3,967.0 Acres Impaired TMDL completed
West Waushacum Pond MA81153 Sterling Waterbody Map Freshwater Lake 111.0 Acres Not_Assessed  
White Pond MA81155 Lancaster/Leominster Waterbody Map Freshwater Lake 47.0 Acres Impaired Non-pollutant impairment
Whitman River MA81-11 Outlet Lake Wampanoag, Ashburnham To Inlet Snows Millpond, Fitchburg (Excluding The Approximately 1.2 Miles Through Whitmanville Reservoir Segment Ma81109 And The Approximately 0.8 Miles Through Crocker Pond Segment Ma81025). Waterbody Map River 6.3 Miles Good  
Whitmanville Reservoir MA81109 Westminster/Ashburnham Waterbody Map Freshwater Lake 107.0 Acres Not_Assessed  
Winnekeag Lake MA81157 Ashburnham Waterbody Map Freshwater Lake 112.0 Acres Not_Assessed  
Wright Pond MA81159 [West Basin] Ashby Waterbody Map Freshwater Lake 21.0 Acres Not_Assessed  
Wyman Pond MA81161 Westminster Waterbody Map Freshwater Lake 198.0 Acres Impaired Non-pollutant impairment

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Causes of Impairment for Reporting Year 2010

Massachusetts, Nashua

Description of this table
NOTE: Click on the underlined "Cause of Impairment" value to see a listing of those waters with that cause of impairment.
Cause of Impairment Size of Assessed Waters with Listed Causes of Impairment
Rivers and
Streams (Miles)		 Lakes, Reservoirs,
and Ponds (Acres)
Low Flow Alterations 7.9  
Non-Native Aquatic Plants 9.1 5,589.0
Aquatic Macroinvertebrate Bioassessments 36.8  
Chromium, Total   29.0
Lack of a Coldwater Assemblage 17.2  
Polycyclic Aromatic Hydrocarbons (PAHs) (Aquatic Ecosystems)   96.0
Sediment Bioassays - Acute Toxicity Freshwater 14.2  
Turbidity   385.0
Arsenic   96.0
Excess Algal Growth   360.0
Fecal Coliform 3.4  
Nutrient/Eutrophication Biological Indicators 11.5 311.0
pH, Low 12.6  
Phosphorus, Total 19.7  
Sediment Bioassay   96.0
Ambient Bioassays - Chronic Aquatic Toxicity 6.9  
DEHP (Di-Sec-Octyl Phthalate)   67.0
Dissolved Oxygen 1.9 436.0
Aquatic Plants (Macrophytes)   121.0
Taste and Odor 10.4  
Temperature, Water 12.6  
Escherichia Coli (E. Coli) 59.2  
Eurasian Water Milfoil, Myriophyllum Spicatum   4,442.0
Mercury in Fish Tissue 9.1 4,936.0

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Probable Sources Contributing to Impairments for Reporting Year 2010

Massachusetts, Nashua Watershed

Description of this table
Probable Source Size of Assessed Waters with Probable Sources of Impairments
Rivers and
Streams (Miles)		 Lakes, Reservoirs,
and Ponds (Acres)
Agriculture 2.4  
Atmospheric Deposition - Toxics   4,936.0
Combined Sewer Overflows 1.7  
Contaminated Groundwater   96.0
Contaminated Sediments 14.2 96.0
Dam Or Impoundment 13.1  
Illicit Connections/Hook-Ups To Storm Sewers 6.9  
Impacts From Hydrostructure Flow Regulation/Modification 7.9  
Introduction Of Non-Native Organisms (Accidental Or Intentional) 9.1 5,608.0
Municipal Point Source Discharges 40.9  
Source Unknown 77.7 896.0
Wet Weather Discharges (Non-Point Source) 50.2  
Wet Weather Discharges (Point Source And Combination Of Stormwater, Sso Or Cso) 18.9  

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TMDL Alternatives by Cause of Impairment for Reporting Year 2010


Massachusetts, Nashua Watershed


No TMDL Alternatives reported.

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Cumulative TMDLs by Pollutant

Massachusetts, Nashua Watershed

This chart includes TMDLs since October 1, 1995.

Description of this table
NOTE: Click on the underlined "Number of TMDLs Completed" value to see a listing of those approved TMDLs for the pollutant.
Pollutant Number of TMDLs Completed Number of Causes of
Impairment Addressed
Mercury color.gif 4 4
Phosphorus color.gif 2 2
Phosphorus, Total color.gif 2 4
Mercury in Fish Tissue color.gif 1 1

Total: 9 TMDLs; 0 Causes of Impairment



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