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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
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