Macro-invertebrate Survey

The chemical monitoring sites are upstream at the 495 culvert outfall and downstream at the last pool before Accotink Creek.

The biological monitoring site is 20 yards upstream from the Cross County Trail.

Wakefield Run  Site ID: 09-PL30-Acc-ACC17

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Back to Wakefield Run Page

Date

17-Sep-19

6-May-19

9-Oct-18

31-Mar-18

28-Sep-17

16-Sep-16

23-Oct-15

12-May-15

31-Oct-14

29-Sep-13

19-Aug-13

21-Jul-13

9-May-13

15-Apr-13

Ecological condition

3

4

3

6

3

3

4

3

Chemical Monitoring Only

Chemical Monitoring Only

Chemical Monitoring Only

4

3

Acceptable (7 - 12)

4

Unacceptable (0-6)

Macro-invertebrates Click on underlined name for picture

Count

Count

Count

Count

Count

Count

Count

Count

Count

Count

Count

Total Macro-Invertebrate Count

213

260

223

90

210

206

239

231

201

207

178

Worms

15

20

12

3

3

5

206

99

Flat Worms

Leeches

5

3

1

4

3

15

9

9

9

1

Crayfishes

Sowbugs

Scuds

Stoneflies

Mayflies

20

1

9

Dragonflies and Damselflies

14

4

13

72

85

136

1

3

Hellgrammites, Fishflies, and Alderflies

Netspinner Caddisfly

96

4

160

38

104

3

4

126

Most Caddisflies

21

11

5

6

Beetles

3

3

Midges

54

230

5

15

15

80

3

203

71

Black Flies

2

2

Most True Flies

3

3

11

4

4

66

11

26

1

Gilled Snails

Lunged Snails

5

1

3

6

13

20

2

26

1

Clams

Other

5

Other Description

Resembling stubby leeches?

Monitor

Philip Latasa

Philip Latasa

Philip Latasa

Philip Latasa

Philip Latasa

Ted Welch

Ted Welch

Ted Welch

Ted Welch

Elizabeth Kirchner

Elizabeth Kirchner

Number of Participants

2

2

2

7

2

7

8

2

2

2

2

Time Start

12:30

10:30

10:00

13:30

12:30

15:30

15:30

11:30

10:30

10:30

10:30

Time End

14:00

12:00

12:00

14:30

2:30

17:00

17:00

13:00

12:30

12:30

12:30

Nr Nets

2

1

3

4

1

3

4

2

1

2

4

Riffle Water Depth(in)

3

3

3

3

3

3

3

3

3

4

3

Stream (water) width(ft)

4

3

3

3

4

4

6

6

8

3

3

Channel (bank to bank) width(ft)

15

15

15

15

15

15

15

15

15

15

15

Stream Flow Rate

med

med

med

med

low

low

low

low

med

med

med

Water Temp

71°F

64°F

70°F

63°F

70°F

71°F

62°F

74°F

51°F

62°F

66°F

Air temp

75°F

65°F

74°F

63°F

72°F

78°F

64°F

86°F

53°F

72°F

84°F

Fish Water Quality Indicators

none

none

none

none

scattered individuals

none

scattered schools

none

none

Scattered schools

Scattered schools

Barriers to Fish Movement

waterfalls > 1 ft

waterfalls > 1 ft

waterfalls > 1 ft

waterfalls > 1 ft

waterfalls > 1 ft

waterfalls > 1 ft

waterfalls > 1 ft

waterfalls > 1 ft

waterfalls > 1 ft

none

none

Surface Water Appearance

clear

muddy

clear

clear

clear

clear

clear

clear

clear

clear

clear

Stream Bed Deposit

brown

brown

brown

brown

brown

brown

brown

brown

brown

brown

brown

Odor

none

none

none

none

none

none

none

none

none

none

none

Stability of Stream (Bed sinks beneath feet in:)

no spots

no spots

no spots

no spots

no spots

no spots

no spots

no spots

no spots

no spots

no spots

Algae color

brown-coated

brown-coated

brown-coated

brown-coated

brown-coated

brown-coated

brown-coated

brown-coated

dark green

brown - coated

brown - coated

Algae percent

5% in spots

5% in spots

5% bed covered

80% everywhere

90% everywhere

80% everywhere

80% everywhere

90% everywhere

90% everywhere

80% everywhere

80% everywhere

Stream Channel Shade

50%-74% high

25%-49% moderate

25%-49% moderate

25%-49% moderate

25%-49% moderate

1%-24% slight

1%-24% slight

1%-24% slight

1%-24% slight

>75% full

>75% full

Stream Bank Composition

5% trees 5% shrubs 20% grass 20% bare soil 50% rocks

15% trees 5% shrubs 20% grass  15% bare soil 30% rocks 15% other plants

30% trees 5% shrubs 5% grass  5% bare soil 20% rocks 35% other plants

15% trees 5% shrubs 40% grass  10% bare soil 30% rocks

15% trees 5% shrubs 40% grass  10% bare soil 30% rocks

10% trees 10% shrubs 50% grass  0% bare soil 30% rocks

10% trees 10% shrubs 50% grass  0% bare soil 30% rocks

10% trees 10% shrubs 50% grass  0% bare soil 30% rocks

10% trees 10% shrubs 50% grass  0% bare soil 30% rocks

5% trees 10% shrubs 0% grass 70% bare soil 15% rocks

5% trees 10% shrubs 0% grass 70% bare soil 15% rocks

Stream Bank Erosion Potential

1%-24% slight

1%-24% slight

1%-24% slight

1%-24% slight

1%-24% slight

1%-24% slight

1%-24% slight

1%-24% slight

1%-24% slight

>75% severe

>75% severe

Riffle Composition

0% silt/mud 10% sand 40% gravel 40% cobbles 10% boulders

0% silt/mud 10% sand 40% gravel 40% cobbles 10% boulders

0% silt/mud 10% sand 40% gravel 40% cobbles 10% boulders

0% silt/mud 10% sand 40% gravel 40% cobbles 10% boulders

0% silt/mud 10% sand 40% gravel 40% cobbles 10% boulders

0% silt/mud 10% sand 40% gravel 40% cobbles 10% boulders

0% silt/mud 10% sand 40% gravel 40% cobbles 10% boulders

0% silt/mud 10% sand 40% gravel 40% cobbles 10% boulders

0% silt/mud 10% sand 40% gravel 40% cobbles 10% boulders

0% silt/mud 15% sand 10% gravel 70% cobbles 5% boulders

0% silt/mud 15% sand 10% gravel 70% cobbles 5% boulders

Land Uses in Watershed

__ Oil & gas  H  Housing  M  Forest __ Logging  H  Urban __ Landfill __ Construction __ Mining __ Cropland M Trash dump __ Fields __ Pasture  M  Other (power line)

__ Oil & gas  H  Housing  M  Forest __ Logging  H  Urban __ Landfill __ Construction __ Mining __ Cropland M Trash dump __ Fields __ Pasture  M  Other (power line)

__ Oil & gas  H  Housing  M  Forest __ Logging  H  Urban __ Landfill __ Construction __ Mining __ Cropland M Trash dump __ Fields __ Pasture  M  Other (power line)

__ Oil & gas  H  Housing  M  Forest __ Logging  H  Urban __ Landfill __ Construction __ Mining __ Cropland M Trash dump __ Fields __ Pasture  M  Other (power line)

__ Oil & gas  H  Housing  M  Forest __ Logging  H  Urban __ Landfill __ Construction __ Mining __ Cropland M Trash dump __ Fields __ Pasture  M  Other (power line)

__ Oil & gas  H  Housing  M  Forest __ Logging  H  Urban __ Landfill __ Construction __ Mining __ Cropland __ Trash dump __ Fields __ Pasture  M  Other (power line)

__ Oil & gas  H  Housing  M  Forest __ Logging  H  Urban __ Landfill __ Construction __ Mining __ Cropland __ Trash dump __ Fields __ Pasture  M  Other (power line)

__ Oil & gas  H  Housing  M  Forest __ Logging  H  Urban __ Landfill __ Construction __ Mining __ Cropland __ Trash dump __ Fields __ Pasture  M  Other (power line)

__ Oil & gas  H  Housing  M  Forest __ Logging  H  Urban __ Landfill __ Construction __ Mining __ Cropland __ Trash dump __ Fields __ Pasture  M  Other (power line)

__ Oil & gas  H  Housing  M  Forest __ Logging  H  Urban __ Landfill __ Construction __ Mining __ Cropland  S  Trash dump __ Fields __ Pasture  M  Other (power line)

__ Oil & gas  H  Housing  M  Forest __ Logging  H  Urban __ Landfill __ Construction __ Mining __ Cropland  S  Trash dump __ Fields __ Pasture  M  Other (power line)

Amount & Type of Litter

Moderate amounts of typical highway runoff litter

Moderate amounts of typical highway runoff litter

Increasing amounts of typical highway runoff litter

Moderate amounts of typical highway runoff litter

Moderate amounts of typical highway runoff litter

Moderate amounts of typical highway runoff litter

Moderate amounts of typical highway runoff litter

Moderate amounts of typical highway runoff litter

Moderate amounts of typical highway runoff litter

Moderate amounts of typical highway runoff litter, plus some dumping of tires & debris

Moderate amounts of typical highway runoff litter, plus some dumping of tires & debris

Comments

THE END! This session is the last in the 5-year monitoring period connected with the 2013-2014 stream restoration project. --------------

This stretch of the stream underwent an extensive stream restoration project --------------

This stretch of the stream underwent an extensive stream restoration project --------------

This stretch of the stream underwent an extensive stream restoration project --------------

This stretch of the stream underwent an extensive stream restoration project --------------

This stretch of the stream underwent an extensive stream restoration project -------------- Chemical tests, September 16, 2016: Upstream - (above plunge pool) Phosphate 4 ppm Turbidity     0 JTU Dissolved O2 2 ppm Nitrates 2 ppm pH 7 Downstream - (last pool above Accotink) Phosphate 1 ppm Turbidity     100 JTU Dissolved O2 2 ppm Nitrates 2.5 ppm pH 7

This stretch of the stream underwent an extensive stream restoration project -------------- Chemical tests, October 23, 2015: Upstream - (above plunge pool) Phosphate 2 ppm Turbidity     80 JTU Dissolved O2 4 ppm Nitrates 5ppm pH 8 Coliform positive Downstream - (last pool above Accotink) Phosphate n/a Turbidity     n/a Dissolved O2 n/a Nitrates n/a pH n/a

This stretch of the stream underwent an extensive stream restoration project -------------- Chemical tests, May 12, 2015: Upstream - (above plunge pool) Phosphate 2 ppm Turbidity     0.0 Dissolved O2 4 ppm Nitrates 2.5ppm pH 8 Downstream - (last pool above Accotink) Phosphate 3 ppm Turbidity     0.0 Dissolved O2 6 ppm Nitrates 2.5 ppm pH 8

This stretch of the stream underwent an extensive stream restoration project -------------- Chemical tests, Oct. 31 2014: Upstream - (above plunge pool) Phosphate 1.5 ppm Turbidity     0.0 Dissolved O2 7 ppm Nitrates 4ppm pH 7.5 Downstream - (last pool above Accotink) Phosphate 2 ppm Turbidity     0.0 Dissolved O2 8 ppm Nitrates 4 ppm pH 7.5

-------------- Chemical tests, Sept 19 2013: Upstream - Phosphate 0.17 ppm Turbidity     0.5mL / 5 JTU Dissolved O2 12mg/l Downstream - Phosphate 0.11ppm Turbidity     0.0 Dissolved O2 9 mg/l

-------------- Chemical tests, Aug 19 2013: Upstream - Phosphate 0.22ppm Turbidity     0.0 Dissolved O2 10 mg/l Downstream - Phosphate 0.14 ppm Turbidity     0.0 Dissolved O2 7 mg/l

-------------- Chemical tests, Jul 21 2013: Upstream - Phosphate n/a Turbidity     n/a Dissolved n/a Downstream - Phosphate 0.32 ppm Turbidity     0.0 Dissolved O2 7 mg/l

-------------- Chemical tests, July 9 2013: Upstream - Phosphate 0.16 ppm Turbidity     0.0 Dissolved O2 7 mg/l Downstream - Phosphate 0.21 ppm Turbidity     0.0 Dissolved O2 7 mg/l

Identification of the 6 caddisflies is questionable.  They were very small; possibly midges.