| A Watershed Analysis of Long Pond South |
| Implications for Water Quality and Land-Use Management |
| Presentation Outline |
| Introduction – Kristyn Loving | |
| Long Pond South Characteristics - Dave Bethoney | |
| GIS and Land-Use Analysis - Kerry Whittaker | |
| Water Chemistry - Jamie O�Connell | |
| Water Budget and Phosphorus Budget - Claire Thompson | |
| INTERMISSION | |
| Erosion Potential and Erosion Impact - Jessica Harold | |
| Road Survey - Anna Birnberg | |
| Septic and Buffer Survey - Rosalind Becker | |
| Future Projections - Eva Gougian | |
| Summary and Recommendations - Kristyn Loving | |
| Long Pond South Characteristics |
| Dave Bethoney |
| Lake Formation |
| Pleistocene | ||
| Glaciers | ||
| Southeast movement | ||
| Scouring | ||
| Granite | ||
| Glacial till | ||
| Deep hole in lake | ||
| From Maine Geological Survey, Bradford M. Cantor | ||
| Slide 5 |
| Belgrade Area Fisheries |
| Prominent Fisheries | ||
| Brook Trout | ||
| Brown Trout | ||
| Landlocked Salmon | ||
| Status | ||
| Used for recreation | ||
| Generally healthy | ||
| Fisheries Management |
| Stocking | ||
| Aquaculture | ||
| Fry size | ||
| Management plans | ||
| Fishing | ||
| Licensing | ||
| Catch and release | ||
| Regulations: size, amount, season | ||
| Potential Threats |
| Dissolved Oxygen (DO) | ||
| Declining trend | ||
| Salmonid | ||
| Deep water fishes | ||
| Erosion | ||
| Sedimentation | ||
| Reduced habitat and spawning areas | ||
| Increased phosphorus | ||
| Gloeotrichia | ||
| Blue-green algae | ||
| Phosphorus indicator | ||
| Northern Pike Esox lucius |
| Actions | ||
| Fines | ||
| Unregulated fishing | ||
| Ice fishing | ||
| Non-Native | ||
| Problems | ||
| Carnivorous | ||
| Rapid growth | ||
| Long lifespan | ||
| Slide 10 |
| Variable-leaf water milfoil
Myriophyllum heterophyllum |
| Non-native | ||
| Problems | ||
| Rapid growth | ||
| Reproduction | ||
| Dense mats | ||
| Actions | ||
| Fines for transportation | ||
| Courtesy Boat Inspectors (CBI) | ||
| Milfoil sticker | ||
| GIS and Land-Use Analysis |
| Kerry Whittaker |
| Long Pond South Land-Use |
| Land Use Introduction |
| GIS as an Analysis Tool | |
| Digitizing Land-Use | |
| Land-Use Descriptions | |
| 2003 Land-Use Analysis | |
| 1966 Land-Use Analysis | |
| Land-Use Changes |
| What is a GIS? |
| Four subsystems | ||
| Data input | ||
| Data storage and retrieval | ||
| Data manipulation and analysis | ||
| Data output and display | ||
| Land-Use Types |
| Digitizing Land-Use Types |
| Land-Use 2003 |
| Land-Use 2003 |
| Land-Use Comparison |
| Land-Use Changes |
| Water Quality |
| Jamie O�Connell |
| Water Quality |
| Parameters | ||
| Physical | ||
| Biological | ||
| Chemical | ||
| 14 sample sites | ||
| May to September 2007 | ||
| Physical Tests |
| Dissolved Oxygen and Temperature | |||
| Transparency | |||
| Turbidity | |||
| True Color | |||
| DO and Temperature |
| Biological importance of DO | ||
| DO: 1 ppm and 5 ppm | ||
| As temp , DO | ||
| Trend of DO levels | ||
| DO (ppm) |
| Profile at Site 1 | |
| May to September 2007 |
| DO (ppm) |
| Profile at Site 1 | |
| May to September 2007 |
| Transparency |
| Biological Tests |
| Chlorophyll-a | ||
| Productivity indicator | ||
| Increase since 1976 | ||
| Chlorophyll-a (ppb) |
| Site 1 profile | |
| May to September 2007 |
| Chlorophyll-a (ppb) |
| Site 1 profile | |
| May to September 2007 |
| Chemical Tests |
| pH | |
| Total Phosphorus | |
| Conductivity |
| pH |
| Acidic water | ||
| Impacts fish reproduction | ||
| solubility of metals | ||
| release of phosphorus | ||
| Basic water | ||
| Productivity | ||
| Long Pond South pH |
| Trend of increasing pH 1976-2007 | ||
| 1976-1985 | ||
| pH= 6.8-6.9 | ||
| 2001-2007 | ||
| pH=7.0-7.2 | ||
| Total Phosphorus |
| Limiting nutrient | ||
| External inputs and internal loading | ||
| Phosphorus budget model | ||
| Total Phosphorus |
| Site 1 | |
| Site 2 | |
| Water Quality |
| Long Pond South in good condition | |
| 2007 data confirms declining trends | |
| Preventative management |
| Water Budget and Phosphorus Budget |
| Claire Thompson |
| Water Budget and Phosphorus Budget |
| Water Budget | ||
| Inputs | ||
| Flushing Rate | ||
| Phosphorus Budget | ||
| Inputs | ||
| Total Phosphorus Concentration | ||
| Water Budget Methods |
| Input | ||
| Runoff | ||
| Precipitation | ||
| Evaporation | ||
| Input with Point Sources | ||
| Flushing Rate | ||
| Total Lake Input/Lake Volume | ||
| Water Budget Results |
| Lake Input | ||
| 19.9 million m3 | ||
| Lake Input with PS | ||
| 169 million m3 | ||
| Flushing Rate | ||
| 3.52 flushes per year | ||
| Water Inputs |
| Phosphorus Budget Methods |
| External Input | |
| Non-point sources | |
| in the watershed | |
| Internal Input | |
| Non-Point Source Input Within the Watershed |
| 15 Land-Use Types | |
| Export Coefficients | |
| Percent contribution |
| Runoff from Land-Use Types |
| Total Phosphorus Loading |
| Runoff | |
| Point Sources | |
| Sediment Release | |
| Total Phosphorus Loading | |
| 759 kg | |
| 1,280 kg | |
| 324 kg | |
| 2,363 kg |
| Total Phosphorus Loading |
| Total Phosphorus Concentration |
| Annual Phosphorus Input | |
| Input from Water Budget | |
| Total Phosphorus | |
| concentration = 8.9 ppb |
| Water Budget and Phosphorus Budget Summary |
| High Flushing Rate | ||
| Input from Long Pond North | ||
| Total Phosphorus Concentration | ||
| Application of model | ||
| Intermission |