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State: Massachusetts
Waterbody ID: MA81-18
Location: Confluence Mason and Willard brooks, Townsend to Hollingsworth and Vose Dam, Groton/Shirley. (through Harbor Pond formerly segment MA81054)
State Waterbody Type: River
EPA Waterbody Type: Rivers and Streams
Water Size: 12.6
Units: miles
Watershed Name: Nashua
On This Page
- Water Quality Assessment Status
- Causes of Impairment
- Probable Sources Contributing to Impairments
- TMDLs That Apply to This Waterbody
- Previous Causes of Impairment Now Attaining All Uses
State: Massachusetts
Waterbody ID: MA81-18
Location: Confluence Mason and Willard brooks, Townsend to Hollingsworth and Vose Dam, Groton/Shirley. (through Harbor Pond formerly segment MA81054)
State Waterbody Type: River
EPA Waterbody Type: Rivers and Streams
Water Size: 12.6
Units: miles
Watershed Name: Nashua
2010 Waterbody Report for Squannacook River
Click on the waterbody for an interactive map
Features
- About This Database (Integrated Report)
- Assessing Water Quality (Questions and Answers)
- Integrated Reporting Guidance
- Previous National Water Quality Reports
- EnviroMapper for Water
- AskWATERS
- EPA WATERS Homepage
- Exchange Network
- Assessment Database
- Statewide Statistical Surveys
- How's My Waterway Local Search tool
- Pollution Categories Summary Document
Water Quality Assessment Status for Reporting Year 2010
The overall status of this waterbody is Impaired.
Description of this table
| Designated Use | Designated Use Group | Status |
|---|---|---|
| Aesthetic | Aesthetic Value | Good |
| Fish Consumption | Aquatic Life Harvesting | Not Assessed |
| Fish, Other Aquatic Life And Wildlife | Fish, Shellfish, And Wildlife Protection And Propagation | Impaired |
| Primary Contact Recreation | Recreation | Impaired |
| Secondary Contact Recreation | Recreation | Good |
Causes of Impairment for Reporting Year 2010
Description of this table
| Cause of Impairment | Cause of Impairment Group | Designated Use(s) | State TMDL Development Status |
|---|---|---|---|
| Escherichia Coli (E. Coli) | Pathogens | Primary Contact Recreation | TMDL needed |
| Lack of a Coldwater Assemblage | Other Cause | Fish, Other Aquatic Life And Wildlife | TMDL needed |
| Temperature | Temperature | TMDL needed | |
| Temperature, Water | Temperature | Fish, Other Aquatic Life And Wildlife | TMDL needed |
| pH, Low | pH/Acidity/Caustic Conditions | Fish, Other Aquatic Life And Wildlife | TMDL needed |
Probable Sources Contributing to Impairment for Reporting Year 2010
Description of this table
| Probable Source | Probable Source Group | Cause(s) of Impairment |
|---|---|---|
| Dam Or Impoundment | Hydromodification | Lack of a Coldwater Assemblage; Temperature, Water |
| Source Unknown | Unknown | Escherichia Coli (E. Coli); Lack of a Coldwater Assemblage; Temperature, Water; pH, Low |
| Wet Weather Discharges (Non-Point Source) | Urban-Related Runoff/Stormwater | Escherichia Coli (E. Coli) |
TMDLs That Apply to this waterbody
No TMDL data have been recorded by EPA for this waterbody.
Previous Causes of Impairments Now Attaining All Uses
No causes of impairment are recorded as attaining all uses for this waterbody.