Kaleidoscope Charter School

Elm Creek Watershed Management C i iCommission

Hennepin CountyR h C k Si #Rush Creek Site #4

May 18, 2011Spring 2011 DataTime tested: AM

WeatherWeatherIn past 24 hours…

Storm (heavy rain)Now…

St (h i )Storm (heavy rain)Rain (steady)Showers (intermittent)

Storm (heavy rain)Rain (steady)

( )Overcast Clear/Sunny

Showers (intermittent)Overcast

Snowy Clear/Sunny

Temperature ReadingsWater Temperature: 15 C Air Temperature: 20 C

Temperature ReadingsTaken in the shade

Water Temperature: 15 C Air Temperature: 20 C

Water A

Water OdAppearance

Check one:

OdorCheck one:Check one:

ClearBl

Check one:NoneFi hBlue-green

GreenFishyMusty

YellowBrown

Rotten eggsBrown

Milky

ggSeptic

Local Land Useland use in local watershed within ¼ mile of site

Residential Paved roads or CommercialAgriculture

bridgesUnpaved roads

Natural/PreserveLawns

ConstructionRecreational useIndustrialWooded

Crop landGrazing land

IndustrialLand fillWaste treatment plantGrazing land

Feed lot

Waste treatment plantEvidence of past alteration

Type of SamplingType of SamplingCheck one:Check one:

Rocky bottomMuddy bottom (RecordMuddy bottom (Record the number of jabs taken in each habitat type)

Vegetated bank margins 2 Snags and logs 1Snags and logs 1 Aquatic vegetation beds 1Silt/Sand/Gravel substrate 4Silt/Sand/Gravel substrate 4

Stream DepthM th d th th t f i ht b k t l ft b k i f t i t l fMeasure the depth across the stream, from right bank to left bank in one-foot intervals for

a minimum of 10 measurements

1’ 7” 1’ 6” 1’ 4” 1’ 2” 1’ 1” 1’ 1’ 1” 1’ 10” 10” 9”

3” 8” 1’ 11” 1’ 2” 1’ 2” 1’5” 1’5” 1’ 2” 11” 6”

1’2” 1’5” 1’9” 1’1” 1’4” 8” 1’10” 1’ 9” 1’ 9” 1’ 10”

1’10” 1’ 3” 4” 10” 1’9” 2’ 1’ 8” 1’ 10” 1’ 10”

Stream Width3 measurements in feet

Measurement Measurement in Number Feet

1 34’1”

2 51’4”

3 28’8”3 28 8

Average 38’43”

Measuring Stream VelocityMeasuring Stream Velocity

Trial #Trial #1. 10.88 seconds 20 feet2. 11.06 seconds 20 feet

Average Time of Travel=Total Time divided by # of measurements 11 seconds

2. 11.06 seconds 20 feet3. 11.03 seconds 20 feet4. 9.66 seconds 20 feet

Velocity=Distance divided by Average Time 1.81 ft or meters/sec.

5. 12.37 seconds 20 feet

River Bottom Composition and Embeddedness

Average EmbeddednessTrial % Embedded

Composition TotalSilt (very fine, muddy material) 26

Trial % EmbeddedRock 1 25%

Rock 2 0%

Sand (<0.1 inches) 31

Gravel (0.1-2 inches) 26

Cobble (2-10 inches) 4

Rock 3 5%

Rock 4 5%

Rock 5 35%Boulder (>10 inches) 0

Bedrock (solid rock bottom) 0

Organic Debris (logs sticks leaves etc ) 13

Rock 5 35%

Rock 6 45%

Rock 7 90%Organic Debris (logs, sticks, leaves, etc.) 13

Rock 8 5%

Rock 9 20%

Rock 10 15%

Average Embeddedness for the it TOTALsite: TOTAL (add all 10 together)

245/10= 24.5%

FAMILYTOLERANCE VALUE TOTAL

Order Ephemeroptera (Mayflies)

Baetidae 4 155

Order Coleoptera (Water Beetles)

Dryopidae 5 0

Dytiscidae 5 0

Elmidae (adults & larvae) 4 0

Gyrinidae 4 0

Order Trichoptera (Caddisflies)

Brachycentridae 1 0

Glossosomatidae 0 0

Macro-Invertebrates Identified # of Squares Counted: 6

Baetiscidae 3 0

Caneidae 7 2

Ephemerellidae 1 0

Ephemeridae 4 0

Heptageniidae 4 15

Isonychiidae 2 1

L t h hid 4 0

Gyrinidae 4 0

Haliplidae 7 0

Hydrophilidae 5 0

Psephenidae 4 0

Scirtidae 7 0

Order Lepidoptera (Aquatic Moths)

Pyralidae 5 0

Order Diptera (Midges Gnats Mosquitoes Flies)

Glossosomatidae 0 0

Helicopsychidae 3 0

Hydropsychidae 4 0

Hydroptilidae 4 0

Lepidosomatidae 1 0

Leptoceridae 4 0Leptohyphidae 4 0

Leptophlebiidae 2 0

Metretopodidae 2 0

Oligoneuriidae 2 0

Polymitarcyidae 2 0

Potamanthidae 4 0

Siphlomuridae 7 0

Order Diptera (Midges, Gnats, Mosquitoes, Flies)

Athericidae 2 0

Blephariceridae 0 0

Ceratopogonidae 6 0

Chaoboridae 8 0

Chironomidae (red) 8 0

Chironomidae (other) 6 1

C li id 8 0

p

Limnephilidae 4 0

Molannidae 6 0

Odontoceridae 0 0

Philopotamidae 3 0

Siphlomuridae 7 0

Tricorythidae 4 0

Order Megaloptera (Fishflies, Dobsonflies, Alderflies)

Corydalidae 0 0

Sialidae 4 0

Order Odonata (Dragonflies, Damselflies)

A h id 3 0

Culicidae 8 0

Dixidae 1 0

Dolichopodidae 4 0

Empididae 6 0

Ephydridae 6 0

Mucidae 6 0

Phychodidae 10 0

Phryganeidae 4 0

Polcentropodidae 6 0

Psychomiidae 2 0

Rhyacophilidae 0 0

Sericostomatidae 3 0

Aeshnidae 3 0

Calopterygidae 5 0

Coenagrionidae 9 0

Cordulergastridae 3 0

Corduliidae 5 0

Gomphidae 1 0

Lestidae 9 0

Ptychopteridae 8 0

Sciomyzidae 6 0

Simuliidae 6 2

Stratiomyidae 8 0

Syrphidae 10 0

Tabanidae 6 0

Tipulidae 3 0

Uenoidae 3 0

Order Amphipoda (Scuds)

Gammaridae 4 6

Hyaliellidae 8 2

Talitridae ** 0

Order Isopoda (Aquatic Sowbugs)Lestidae 9 0

Libellulidae 9 0

Macromiidae 3 0

Order Plecoptera (Stoneflies)

Capniidae 1 0

Chloroperlidae 1 0

Leutridae 0 0

Order Hemiptera

Belostomatidae 10 0

Corixidae 9 0

Gelastocoridae ** 0

Gerridae ** 0

Hebridae ** 0

Hydrometridae ** 0

Order Isopoda (Aquatic Sowbugs)

Asellidae 8 0

Other

Decapoda-Cambaridae (crayfish) 6 0

Class Oligochaeta (Aquatic worms) 8 0

Class Hirundinea (Leeches) 10 6Leutridae 0 0

Nemouridae 2 0

Perlidae 1 0

Perlodidae 2 2

Pteronarcidae 0 0

Taeniopterygidae 2 0

Mesoveliidae ** 0

Naucoridae 5 0

Notonectidae ** 0

Pleidae ** 0

Saldidae ** 0

Veliidae 6 0

( )

Class Gastropoda (Snails) 7 0

Class Pelecypoda (Clams) 7 1

Family Hydracarina 0

Class Arachnida 0

Phylum Nematoda 0

What the findings mean to the watershedThe macro-invertebrates

we found and identified have a low to medium

tolerance level. We found Tolerance Level  Number of macro‐invertebrates identified with179 macro-invertebrates

in the range of 0 to 5 tolerance level. We

found 15 macro-

invertebrates identified with tolerance level 

0 0

1 0invertebrates in the

range of 6 to 10. With the high level of snow

received this winter and

1 0

2 3

3 0

4 176the numerous inches of rain this spring there was a lot of sediment in our

testing area. Because of

4 176

5 0

6 3

7 4the rushing water, lower tolerance of the majority of our bugs, and clear,

scentless water our

7  4

8  2

9  0

10 6water quality is on the healthier side.

10  6

Unknown  0