Mn 2 Fact Sheet

8/2/2019 Mn 2 Fact Sheet

http://slidepdf.com/reader/full/mn-2-fact-sheet 1/24



Assessment Point: MN-2

The following data are excerpts from multiple reports. While the same location in theMenomonee River watershed is represented, the assessment point IDs differ. Throughoutthe following data, Assessment Point MN-2 is also represented by:

o Reach 803

o Upper Menomonee River



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t u45

t u41

45

t u41

t u45

tu18

t u45

t u41 t u18

t u45

t u41C i t y o f C i t y o f

B R O O K F I E L D B R O O K F I E L D C i t y o f C i t y o f

M I L W A U K E E M I L W A U K E E

C i t y o f C i t y o f G L E N D A L E G L E N D A L E

C i t y o f C i t y o f C E D A R B UR G C E D A R B U R G

C it y of C it y o f W AU W A T OS AW AU W AT OS A

C it y of Ci t y of ME Q UO N M EQ UO N

UPPER MENOMONEE RIVER

LOW E R MENOMONEE RIV E R

LI T TLE MENO M O N E E RIVER

UNDERWOOD CREEK

LILLY CREEK

WILLO W C R E EK

BUTLER DITCH

NOR-X-WAY CHANNEL

DOUSMAN DITCH

WEST BR A NCH MENOMO N E E RIV E R

NORTH BRANCH MENOMONEE RIVER

LITTLE MENOMONEE CREEK



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t u41

t u45

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t u41 t u18

t u45

t u41

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?@190

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R I V E R

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C i t y o f C i t y o f B R O O K F I E L D B R O O K F I E L D

C i t y o f C i t y o f M E Q U O N M E Q U O N

C i t y o f C i t y o f


C i t y o f C i t y o f W A U W A T O S AW A U W A T O S A


G L E N D A L E G L E N D A L E

UPPER MENOMONEE RIVER

LOW E R MENOMONEE RIV E R

LI T TL E MENO M O N E E RIVER

UNDERWOOD CREEK

LILLY CREEK

WILLO W C R E EK

BUTLER DITCH

NOR-X-WAY CHANNEL

DOUSMAN DITCH

WEST BR A NCH MENOMO N E E RIV E R

NORTH BRANCH MENOMONEE RIVER

LITTLE MENOMONEE CREEK



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B R O O K F I E L D B R O O K F I E L D

C i t y o f C i t y o f M E Q U O N M E Q U O N



C i t y o f C i t y o f W A U W A T O S AW A U W A T O S A


G L E N D A L E G L E N D A L E

MN-11

MN-9

MN-14

MN-2

MN-5

MN-15

MN-13

MN-4

MN-7

MN-8

MN-3

MN-6

MN-1

MN-10

MN-17

MN-12

MN-8 MN-9

MN-7

MN-6

MN-5

MN-4

MN-3 MN-2

MN-1

MN-16 MN-17

MN-15

MN-14

MN-13

MN-11

MN-12

MN-10



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Me q u o n Ro a d

P io ne er Road

MN-2



Constituent Measure Standard/Target

Geometric Mean Standard 200 counts/100 ml

Not to Exceed Standard 400 counts/100 ml

Dissolved Oxygen (DO) Minimum Concentration Standard 5 mg/l

Total Suspended Solids (TSS)USGS Median TSS Reference Concentration (estimatedbackground concentration) 17.2 mg/l

Total Phosphorus (TP) Planning Guideline 0.1 mg/l

Flashiness

Richards Baker Flashiness Index (quantifies the frequencyand rapidity of short-term changes in stream flow; the indexranges from 0 - 2, with 0 being constant flow) indicator only

Menomonee River Standards/Targets

Fecal Coliform



Figure Overall Project

Team AssessmentAnalysis

Dissolved oxygenby flow Good Note that the largest decreases in dissolved oxygen concentrations occur at low flows. This is likely due to a combinationof decreased water agitation and higher temperatures (low flow conditions are often associated with the warm summermonths).

Fecal coliform byflow

Moderate Generally, a pollutant that is present at high concentrations during high flows and low concentrations during low flows(fecal coliform, in this case) is attributed primarily to non-point sources. Note that during any period with high flows,fecal coliform counts exceed the regulatory standard about 50% of the time. During low flows and dry conditions, thestandard is met over 75% of the time. This would be the safest time for any recreational uses (boating, swimming, wading,etc.), although the amount of water in the stream may limit recreational use to wading.

Phosphorus by

flow

Moderate Concentrations of phosphorus are greatest at low flows. This suggests a background source of phosphorus that may beassociated with agricultural drain tile discharge or releases from private onsite wastewater treatment systems (includingagricultural lagoons).

Suspended solidsby flow

Very Good The concentrations of suspended solids increase with increased flows, suggesting contributions from non-point sources.The suspended solids may come from runoff that carries a sediment load, from stream bank erosion, or re-suspendedstream sediments.



Flashiness Index

Reach DescriptionRichards Baker Flashiness

Index

803 Upper Menomonee River 0.25

Average Daily Flow

Upper Menomonee River (803)

0

20

4060

80

100

120

140160

180

200

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

A V E R A G E D A I L Y F L O W

( C F

S



Existing Water Quality Data

AssessmentPoint

Water QualityIndicator

Statistic ConditionExisting

Mean (cells per 100 ml) 797Fecal Coliform Bacteria(annual)

Percent compliance with single samplestandard (<400 cells per 100 ml)

75

MN-2Upper Menomonee

River

Geometric mean (cells per 100 ml) 124Days of compliance with geometric mean

standard (<200 cells per 100 ml)262

Mean (cells per 100 ml) 602Fecal Coliform Bacteria(May-September: 153days total) Percent compliance with single sample

standard (<400 cells per 100 ml)86

Geometric mean (cells per 100 ml) 79

Days of compliance with geometric meanstandard (<200 cells per 100 ml)

144

Dissolved Oxygen Mean (mg/l) 9.3

Median (mg/l) 9.1

Percent compliance with dissolved oxygenstandard (>5 mg/l)

100

Total Phosphorus Mean (mg/l) 0.09

Median (mg/l) 0.072

Percent compliance with recommendedphosphorus standard (0.1 mg/l)

70

Total Nitrogen Mean (mg/l) 0.77

Median (mg/l) 0.72

Total Suspended Solids Mean (mg/l) 7.9

Median (mg/l) 5.7

Copper Mean (mg/l) 0.0024

Median (mg/l) 0.0012



0

40

80

120

160

200

240

280

320

360

400

0 -1

1 -2

2 - 3

3 -4

4 - 5

5 - 6

6 -7

7 - 8

8 - 9

9 -1 0

> 1 0

Average DO (mg/L)

A v e r a g e

N u m

b e r o

f D a y s

P e r

Y e a r

Menomonee River @ Upper Menomonee River (RI 803)




0

40

80

120

160

200

240

280

320

360

400

0 -4 0 0

4 0 0 - 6 0 0

6 0 0 -1 0 0 0

1 0 0 0 -2 0 0 0

2 0 0 0 - 3 0 0 0

3 0 0 0 -4 0 0 0

4 0 0 0 - 5 0 0 0

> 5 0 0 0

Average Fecal Coliform (#/100ml)

A v e r a g e

N u m

b e r o

f D a y s

P e r

Y e a r



Menomonee River @ Upper Menomonee River (RI 803 )

0

40

80

120

160

200

240

280

320

360

400

0 - 0 . 0 5

0 . 0 5 - 0 .1

0 .1 - 0 .1 5

0 .1 5 - 0 .2

0 .2 - 0 .2 5

0 .2 5 - 0 . 3

0 . 3 - 0 . 3 5

0 . 3 5 - 0 .4

0 .4 - 0 .4 5

0 .4 5 - 0 . 5

> 0 . 5

Average TP (mg/L)

A v e r a

g e

N u m

b e r o

f D a y s

P e r

Y e

a r




0

40

80

120

160

200

240

280

320

360

400

0 -2 5

2 5 - 5 0

5 0 -7 5

7 5 -1 0 0

1 0 0 -1 2 5

1 2 5 -1 5 0

1 5 0 -1 7 5

1 7 5 -2 0 0

>2 0 0

Average TSS (mg/L)

A v e r a g e N u m

b e r o

f D a y s

P e r

Y e a r



1

10

100

0 10 20 30 40 50 60 70 80 90 100

Flow Duration Interval (%)

C o n c e n

t r a

t i o n ( m g / L )

Flow Conditions Regulatory Standard (5 mg/L) Box & Whiskers

Upper Menomonee River – Reach 803Dissolved Oxygen

Modeled Flow Data

Dry C on d iti on s

Lo w F lo ws

M id - ra nge F lo ws

H ig h F lo ws

M o ist C on d iti on s



1.E+00

1.E+01

1.E+02

1.E+03

1.E+04

1.E+05

0 10 20 30 40 50 60 70 80 90 100


C o n c e n

t r a

t i o n

( c f u / 1 0 0 m

L )

Flow Conditions Regulatory Standard (400 cfu/100 mL) Box & Whiskers

Upper Menomonee River – Reach 803Fecal Coliform

Modeled Flow Data

D ry Con diti on s

Low F lows

M i d -ra n ge F lows

Hig h F lows

Mo ist C on diti ons



0.01

0.10

1.00

0 10 20 30 40 50 60 70 80 90 100


C o n c e n

t r a

t i o n ( m g / L )

Flow Conditions Planning Standard (0.1 mg/L) Box & Whiskers

Upper Menomonee River – Reach 803Total Phosphorus

Modeled Flow Data

Dry C on d iti on s

Lo w F lo ws


H ig h F lo ws




1

10

100

1000

0 10 20 30 40 50 60 70 80 90 100


C o n c e n

t r a

t i o n ( m g / L )

Flow Conditions Reference Concentration (17.2 mg/L) Box & Whiskers

Upper Menomonee River – Reach 803Total Suspended Solids

Modeled Flow Data

Dry C on d iti on s

Lo w F lo ws


H i g h F lo ws


Mn 2 Fact Sheet

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