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State: Connecticut
Waterbody ID: CT6000-00-5+L1_01
Location: Impoundment of Housatonic River, from Shepaug Dam US to top of impundment, south side of Lovers Leap Road; Southbury and Bridgewater along east bank, Newtown, Brookfield, and New Milford along west bank.
State Waterbody Type: Freshwater Lake
EPA Waterbody Type: Lakes, Reservoirs, and Ponds
Water Size: 1594.85
Units: acres
Watershed Name: Housatonic
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: Connecticut
Waterbody ID: CT6000-00-5+L1_01
Location: Impoundment of Housatonic River, from Shepaug Dam US to top of impundment, south side of Lovers Leap Road; Southbury and Bridgewater along east bank, Newtown, Brookfield, and New Milford along west bank.
State Waterbody Type: Freshwater Lake
EPA Waterbody Type: Lakes, Reservoirs, and Ponds
Water Size: 1594.85
Units: acres
Watershed Name: Housatonic
2010 Waterbody Report for Lillinonah, Lake (Newtown/Southbury/Bridgewater/Brookfield)
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 |
|---|---|---|
| Fish Consumption | Aquatic Life Harvesting | Impaired |
| Habitat For Fish, Other Aquatic Life And Wildlife | Fish, Shellfish, And Wildlife Protection And Propagation | Good |
| Recreation | Recreation | Impaired |
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 |
|---|---|---|---|
| Chlorophyll-A | Algal Growth | Recreation | TMDL needed |
| Debris/Floatables/Trash | Trash | Recreation | TMDL needed |
| Excess Algal Growth | Algal Growth | Recreation | TMDL needed |
| Nutrient/Eutrophication Biological Indicators | Nutrients | Recreation | TMDL needed |
| Polychlorinated Biphenyls (PCBs) | Polychlorinated Biphenyls (PCBs) | Fish Consumption | TMDL alternative |
| Taste and Odor | Taste, Color and Odor | Recreation | TMDL needed |
Probable Sources Contributing to Impairment for Reporting Year 2010
Description of this table
| Probable Source | Probable Source Group | Cause(s) of Impairment |
|---|---|---|
| Agriculture | Agriculture | Chlorophyll-A; Excess Algal Growth; Nutrient/Eutrophication Biological Indicators; Taste and Odor |
| Contaminated Sediments | Legacy/Historical Pollutants | Polychlorinated Biphenyls (PCBs) |
| Industrial Point Source Discharge | Industrial | Polychlorinated Biphenyls (PCBs) |
| Municipal Point Source Discharges | Municipal Discharges/Sewage | Chlorophyll-A; Excess Algal Growth; Nutrient/Eutrophication Biological Indicators; Taste and Odor |
| Non-Point Source | Unspecified Nonpoint Source | Chlorophyll-A; Debris/Floatables/Trash; Excess Algal Growth; Nutrient/Eutrophication Biological Indicators; Taste and Odor |
| Sources Outside State Jurisdiction Or Borders | Other | Polychlorinated Biphenyls (PCBs) |
| Unspecified Urban Stormwater | Urban-Related Runoff/Stormwater | Chlorophyll-A; Debris/Floatables/Trash; Excess Algal Growth; Nutrient/Eutrophication Biological Indicators; Taste and Odor |
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.