appendix d water quality program - vbwd

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Appendix D Water Quality Program (Appendix D is divided into 4 parts) Part 3 Lake Elmo, Goose Lake (North), Goose Lake (South), Horseshoe Lake, Lake Jane, Klawitter Pond, Kramer Pond (Lake graphs and map of survey results) Part 1 2012 VBWD Water Quality Data Collection Program (Narration, Tables D-1 through D-6, Figure D-1 [Avg. water clarity depths], and Figures D-2 and D-3 [Biotic Index Values]) Part 2 Bay Lake, Cloverdale Lake, Lake DeMontreville, Downs Lake, Eagle Point Lake, Echo Lake, Lake Edith (Lake graphs and map of survey results) Part 3 Lake Elmo, Goose Lake (North), Goose Lake (South), Horseshoe Lake, Lake Jane, Klawitter Pond, Kramer Pond (Lake graphs and map of survey results) Part 4 Long Lake, McDonald Lake, Lake Olson, Rest Area Pond, Silver Lake, Sunfish Lake, Sunnybrook Lake (Lake graphs and map of survey results)

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Appendix D

Water Quality Program

(Appendix D is divided into 4 parts)

Part 3 Lake Elmo, Goose Lake (North), Goose Lake (South), Horseshoe Lake,

Lake Jane, Klawitter Pond, Kramer Pond (Lake graphs and map of survey results)

Part 1 2012 VBWD Water Quality Data Collection Program

(Narration, Tables D-1 through D-6, Figure D-1 [Avg. water clarity depths], and Figures D-2 and D-3 [Biotic Index Values])

Part 2

Bay Lake, Cloverdale Lake, Lake DeMontreville, Downs Lake, Eagle Point Lake, Echo Lake, Lake Edith

(Lake graphs and map of survey results)

Part 3

Lake Elmo, Goose Lake (North), Goose Lake (South), Horseshoe Lake, Lake Jane, Klawitter Pond, Kramer Pond

(Lake graphs and map of survey results)

Part 4 Long Lake, McDonald Lake, Lake Olson, Rest Area Pond, Silver Lake,

Sunfish Lake, Sunnybrook Lake

(Lake graphs and map of survey results)

LAKE ELMOSUMMER AVERAGE WATER CLARITY

Valley Branch Watershed District

0

2

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18

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LAKE ELMO HISTORIC WATER QUALITY DATA Valley Branch Watershed District

LAKE ELMO HISTORIC WATER QUALITY DATA Valley Branch Watershed District

Mann-Kendall/Sen’s Slope Trend Test

(Test Period – 2003 to 2012)

Confidence Level

Test Statistic = 12 Test Significance

99% 12 < 25 Not Significant 95% 12 < 20 Not Significant 90% 12 < 17 Not Significant 80% 12 < 14 Not Significant

Sen’s Slope 0.106 meters/year

Notes: 1. Points shown in the graph are the summer average (June-August) Secchi disc transparency depths. Only years with a calculated summer average based on at least 4 measured values are plotted. At least 5 data points were required to complete the trend test.

LAKE ELMO

MANN-KENDALL TREND ANALYSIS OF SECCHI DISC TRANSPARENCY Valley Branch Watershed District

GOOSE LAKE (NORTH)SUMMER AVERAGE WATER CLARITY

Valley Branch Watershed District

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2013

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GOOSE LAKE (NORTH) HISTORIC WATER QUALITY DATA Valley Branch Watershed District

GOOSE LAKE (NORTH) HISTORIC WATER QUALITY DATA Valley Branch Watershed District

!?

Typha sp.

Typha sp.

Typha sp.

Lythrum salicaria

Iris versicolor

Glyceria borealis

Scirpus fluviatilis

Scirpus fluviatilis

Scirpus fluviatilis

Typha sp.

Potamogeton nodosus - 1

Potamogeton nodosus - 1

Elodea nuttallii - 2-3+

Potamogeton nodosus - 2-3

Potamogeton nodosus - 2-3

Potamogeton zosteriformis - 1-2

Elodea nuttallii - 2-3+

Potamogeton sp. - 1

Scirpus fluviatilis

Typha sp.

Potamogeton nodosus - 1

Scirpus fluviatilis

Typha sp.

Eleocharis sp.

Scirpus fluviatilis

Glyceria borealis

Water QualityMonitoring Location

Typha sp.

Glyceria borealis

Elodea nuttallii - 2-3

Potamogeton nodosus - 1

Potamogeton zosteriformis - 1

Potamogeton nodosus - 1-2

Potamogeton nodosus - 1-2

Elodea nuttallii - 2-3

Potamogeton zosteriformis - 1-2

Glyceria borealis

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GOOSE LAKE NORTH MACROPHYTESURVEY RESULTS

June 5, 2012Valley Branch Watershed DistrictFIELD NOTES:

- Macrophyte densities estimated as follows: 1=light; 2=moderate; 3=heavy- No macrophytes found in water > 3-4 Feet

Emergent Plants

Floating Leaf Plants

Submerged Aquatic Plants

No Aquatic Vegetation

!? Water Quality Monitoring Location

*Note: Bold red name indicates extremely aggressive/invasive introduced species.

Common Name Scientific Name

Flatstem pondw eed Potamogeton zosteriformis

Longleaf pondw eed Potamogeton nodosus

Narrow leaf pondw eed Potamogeton sp. (narrowleaf)

Slender w aterw eed Elodea nuttallii

Common Name Scientific Name

Blueflag iris Iris versicolor

Cattail Typha sp.

Northern mannagrass Glyceria borealis

Purple loosestrife Lythrum salicaria

River bulrush Schoenoplectus fluviatilis

Spikerush Eleocharis sp.

Submerged Aquatic Plants

Floating Leaf Plants

None Found

Emergent Plants

GOOSE LAKE (SOUTH)SUMMER AVERAGE WATER CLARITY

Valley Branch Watershed District

0

1

2

3

4

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2013

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GOOSE LAKE (SOUTH) HISTORIC WATER QUALITY DATA Valley Branch Watershed District

GOOSE LAKE (SOUTH) HISTORIC WATER QUALITY DATA Valley Branch Watershed District

!?

456719

Ke

ats

Av N

Sagittaria sp.

Sagittaria sp.

Sagittaria sp.

Lythrum salicariaGlyceria borealis

Phalaris arundinacea

Scirpus fluviatilis

Lythrum salicariaSagittaria sp.

Scirpus fluviatilis

Elocharia sp.

Lythrum salicariaSagittaria sp.

Polygonum amphibium

Phalaris arundinacea

Lythrum salicariaSagittaria sp.

Scirpus fluviatilisLythrum salicariaPolygonum amphibium

Eleocharis sp.

Sagittaria sp.

Scirpus fluviatilis

Scirpus validus

(sporadic growth)

Eleocharis sp.Lythrum salicaria

Polygonum amphibium

Sagittaria sp.

Scirpus validus

Typha sp.

Elodea nuttallii - 1-2

Ceratophyllum demersum - 1-2

Potamogeton pusilus - 1-2

Typha sp. (dead)

Lythrum salicariaPhalaris arundinacea

Elodea nuttallii - 1-2

Potamogeton crispus - 1

Potamogeton pusillus - 1

Phalaris arundinaceaElodea nuttallii - 1-2

Potamogeton pusillus - 2-3

Potamogeton crispus - 1-2

Potamogetoncrispus - 1-2

Elodea nuttallii - 1

Potamogeton crispus - 1 Ceratophyllum demersum - 1Potemogeton crispus - 1

Elodea nuttallii - 1-2

Potamogeton pusilus - 1-2Potemogeton crispus - 1

Elodea nuttallii - 1

Potamogeton crispus - 1

Elodea nuttallii - 1-2

Drepanocladus

Nitella sp. - 3+

Potamogeton crispus (1 plant)Elodea nuttallii - 1

Ceratophyllum demersum - 1

Glyceria borealis

Nitella sp. - 2-3

Ceratophyllum demersum - 1

Elodea nuttallii - 1-2

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Imagery Source: 2009 AE

GOOSE LAKE SOUTH MACROPHYTESURVEY RESULTS

June 5, 2012Valley Branch Watershed District

FIELD NOTES:- Macrophyte densities estimated as follows: 1=light; 2=moderate; 3=heavy- No macrophytes found in lake > 4.0 ft of depth- High water level- Entire shoreline contains Sagittaria sp., Lythrum salicaria, Scirpus fluviatilis, Eleocharis sp., Polygonium amphibium - the most dense areas are mapped- Algal blooms present- Reed canary grass (Phalaris arundinacea) present around entire lake perimeter

Dry

Emergent Plants

Floating Leaf Plants

Submerged Aquatic Plants

No Aquatic Vegetation

!? Water Quality Monitoring Location

*Note: Bold red name indicates extremely aggressive/invasive introduced species.

Coontail Ceratophyllum demersum

Curlyleaf pondw eed Potamogeton crispus

Slender w aterw eed Elodea nuttallii

Small pondw eed Potamogeton pusillus

Stonew ort Nitella sp.

Watermoss Drepanocladus

Common Name Scientific Name

Arrow head Sagittaria sp.

Northern mannagrass Glyceria borealis

Purple loosestrife Lythrum salicaria

River bulrush Schoenoplectus fluviatilis

Softstem bulrush Schoenoplectus tabernaemontani

Spikerush Eleocharis sp.

Water smartw eed Polygonum amphibium

Cattail Typha sp.

Submerged Aquatic Plants

Floating Leaf Plants

None Found

Emergent Plants

HORSESHOE LAKESUMMER AVERAGE WATER CLARITY

Valley Branch Watershed District

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HORSESHOE LAKE HISTORIC WATER QUALITY DATA Valley Branch Watershed District

HORSESHOE LAKE HISTORIC WATER QUALITY DATA Valley Branch Watershed District

Mann-Kendall/Sen’s Slope Trend Test (Test Period – 2004 to 2012)

Confidence

Level Test Statistic = 11

Test Significance 99% 11 < 18 Not Significant 95% 11 < 15 Not Significant 90% 11 < 13 Not Significant80% 11 > 10 Significant (Increasing)

Sen’s Slope 0.114 meters/year

Notes: 1. Points shown in the graph are the summer average (June-August) Secchi disc transparency depths. Only years with a calculated summer average based on at least 4 measured values are plotted. At least 5 data points were required to complete the trend test.

HORSESHOE LAKE

MANN-KENDALL TREND ANALYSIS OF SECCHI DISC TRANSPARENCY Valley Branch Watershed District

!?

Typha sp.Chara sp - 1-2

Carex sp.

Typha sp.

Carex sp.

Typha sp.

Typha sp.

Typha sp.

Typha sp.

Typha sp.

Scirpus acutus

Scirpus validus

Typha sp.

Scirpus validus

Scirpus fluviatilis

Sparganium eurycarpum

Typha sp.

Typha sp.

Scirpus validus

Typha sp.

Scirpus validus

Typha sp.

Carex sp.

Carex sp.

Scirpus acutus

Typha sp.

Typha sp.

Ceratophyllum demersum - 1

Ceratophyllum

demersum - 1-2

Scirpus validus

Carex sp.

Eleocharis sp.

Potamogeton sp. - 1

Elodea Canadensis - 1-2

Myriophyllum spicatum - 3

Myriophyllum

spicatum - 1

Potamogeton crispus - 1-2Myriophyllum sibiricum - 1

Potamogeton sp. - 1

Typha sp.

Myriophyllum spicatum - 1

Myriophyllum spicatum - 1-2

Potamogeton sp. - 1-2

Stuckenia pectinata - 1Potamogeton crispus - 1-2

Ceratophyllum demersum - 1

Potamogeton sp. - 1-2

Stuckenia pectinata - 1Potamogeton sp. - 1-2

Potamogeton crispus - 1-2

Elodea Canadensis - 1

Potamogeton sp. - 1-2Potamogeton crispus - 1-2

Stuckenia pectinata - 1-2

Potamogeton crispus - 3+Myriophyllum spicatum - 1

Typha sp.

Typha sp.

Scirpus validus

Potamogeton crispus - 1-2Myriophyllum spicatum - 1

Potamogeton pectinatus - 1-2

Ceratophyllum demersum - 1-3

Potamogeton sp. - 1-3

Potamogeton sp. - 1

Ceratophyllum demersum - 1-2

Potamogeton crispus - 1

Potamogeton crispus - 1Myriophyllum spicatum - 1

Potamogeton sp. - 1

Ceratophyllum demersum - 1

Stuckenia pectinata - 1

Elodea Canadensis - 1-2

Potamogeton crispus - 1Potamogeton sp. - 1-2

Ranunculus sp. - 1

Potamogeton crispus - 1-2

Potamogeton sp. - 1-2

Ceratophyllum demersum - 1

Potamogeton crispus - 1Potamogeton pectinatus - 1

Ranunculus sp. - 1

Potamogeton crispus - 1Potamogeton sp. - 1-2

Potamogeton crispus - 1 (sporadic)Ceratophyllum demersum - 1

Water QualitySampling Location

Potamogeton crispus - 1-2

Potamogeton crispus - 1Ceratophyllum demersum - 1

Potamogeton sp. - 1-2Elodea Canadensis - 2-3

Potamogeton crispus - 1

Potamogeton sp. - 1-2Potamogeton crispus - 1-2

Ceratophyllum demersum - 1

Potamogeton crispus - 1

Potamogeton crispus - 1Potamogeton sp. - 1

Stuckenia pectinata - 1-2

Potamogeton crispus - 1-2Myriophyllum spicatum - 1

Elodea Canadensis - 1-3

Potamogeton sp. - 2-3

Ceratophyllum demersum - 2-3

Stuckenia pectinata - 1-2

Potamogeton crispus - 1-2Ceratophyllum demersum - 1-2

Potamogeton crispus - 1-2Myriophyllum spicatum - 1

Ceratophyllum demersum - 3

!;N

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HORSESHOE LAKE MACROPHYTESURVEY RESULTS

June 4, 2012Valley Branch Watershed District

FIELD NOTES:- Macrophyte densities estimated as follows: 1=light; 2=moderate; 3=heavy- Densities generally not noted for emergent and floating leaf plants- No macrophytes found in water >5-6’- Carex sp., Eleocharis sp. and Polygonum sp. found along entire shoreline- High water level- Algal mats present near shore

Emergent Plants

Floating Leaf Plants

Submerged Aquatic Plants

No Aquatic Vegetation

!? Water Quality Monitoring Location

*Note: Bold red name indicates extremely aggressive/invasive introduced species.

Common Name Scientific Name

Canadian w aterw eed Elodea Canadensis

Coontail Ceratophyllum demersum

Curlyleaf pondweed Potamogeton crispus

Eurasian watermilfoil M yriophyllum spicatum

Northern w atermilfoil Myriophyllum sibricum

Pondw eed Potamogeton sp.

Sago pondw eed Potamogeton pectinatus

Common Name Scientific Name

Cattail Typha sp.

Common bur-reed Sparganium eurycarpum

Hardstem bulrush Scirpus acutus

River bulrush Scirpus fluviatilis

Sedge Carex sp.

Softstem bulrush Scirpus validus

Spikerush Eleocharis sp.

Submerged Aquatic Plants

None Observed

Floating Leaf Plants

Emergent Plants

LAKE JANESUMMER AVERAGE WATER CLARITY

Valley Branch Watershed District

0.0

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LAKE JANE HISTORIC WATER QUALITY DATA Valley Branch Watershed District

LAKE JANE HISTORIC WATER QUALITY DATA Valley Branch Watershed District

KLAWITTER PONDSUMMER AVERAGE WATER CLARITY

Valley Branch Watershed District

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KLAWITTER POND HISTORIC WATER QUALITY DATA Valley Branch Watershed District

KLAWITTER POND HISTORIC WATER QUALITY DATA Valley Branch Watershed District

Mann-Kendall/Sen’s Slope Trend Test (Test Period – 2003 to 2012)

Confidence

Level Test Statistic = -7

Test Significance 99% 3 < 30 Not Significant 95% 3 < 23 Not Significant 90% 3 < 20 Not Significant 80% 3 < 16 Not Significant

Sen’s Slope 0.004 meters/year

Notes: 1. Points shown in the graph are the summer average (June-August) Secchi disc transparency depths. Only years with a calculated summer average based on at least 4 measured values are plotted. At least 5 data points were required to complete the trend test.

KLAWITTER POND

MANN-KENDALL TREND ANALYSIS OF SECCHI DISC TRANSPARENCY Valley Branch Watershed District

KRAMER PONDSUMMER AVERAGE WATER CLARITY

Valley Branch Watershed District

0

1

2

3

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9

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2002

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KRAMER POND HISTORIC WATER QUALITY DATA Valley Branch Watershed District

KRAMER POND HISTORIC WATER QUALITY DATA Valley Branch Watershed District

!?Water QualityMonitoring Location

3.5’ deep silt / clay

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KRAMER POND MACROPHYTESURVEY RESULTS

June 5, 2012Valley Branch Watershed DistrictFIELD NOTES:

- No macrophytes found in water > 1-2 feet.- Macrophyte densities estimated as follows: 1=light; 2=moderate; 3=heavy- High water level

Emergent Plants

Floating Leaf Plants

Submerged Aquatic Plants

No Aquatic Vegetation

!? Water Quality Monitoring Location

Submerged Aquatic Plants

Floating Leaf Plants

None Found

Emergent Plants

None Found

None Found