Mn 1 Fact Sheet

8/2/2019 Mn 1 Fact Sheet

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Assessment Point: MN-1

The following data are excerpts from multiple reports. While the same location in theMenomonee River watershed is represented, the assessment point IDs differ. Throughout

the following data, Assessment Point MN-1 is also represented by:

o Reach 006o North Branch Menomonee River


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94

43

43

43

43

tu45

tu41

tu

45

tu41

tu45

tu18

tu45

tu41tu18

tu45

tu41C 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


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

City ofCity of

CEDA RBUR GCEDA RB URG

C it y ofC it y o f

WAU WA TOS AWAU WAT OS A

C it y ofCi ty of

ME QUO NM EQ UO N

UPPER MENOMONEE RIVER

LOWER MENOMONEE RIVER

LITTLEMENOMONEERIVER

UNDERWOOD CREEK

LILLY CREEK

WILLOWCREEK

BUTLER DITCH

NOR-X-WAY CHANNEL

DOUSMAN DITCH

WEST BRANCH MENOMONEERIVER

NORTH BRANCH MENOMONEE RIVER

LITTLE MENOMONEE CREEK


4/2494

43

43

43

43

tu45

tu41

tu45

tu41

tu45

tu18

tu45

tu41tu18

tu45

tu41

?@145

?@74

?@175

?@74

?@74

?@190

?@190

?@164

?@74

?@190

?@100

?@175

?@175

?@145

?@145

?@167

?@145

?@167

?@57

?@32

?@167

?@57?@181

?@181

?@57

?@100

?@100

?@190

?@181

?@145

?@57

?@57

?@100

?@181

?@100?@32

?@57

?@32

?@145

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MILWAUKE

E

LILLY

DIT

CH

PIGEON

NOR

-X-WAY

SUS

SEX

DOUSMAN

UNDER

WOOD

CREEK

CRE

EK

CREEK

RIVER

RIV

ER

CREE

K

CR

EEK

LITTLE

MENOMONEE

MENOMONEE

RIVER

MENOM

ONEE

PIT

LAKE

FISH

INDIA

N

WH

LINCOLN

BARK

W.

CREEK

CHANNEL

AMY

BELL

LAKE

CREEK

MENOMONEE

PEWA

UKEE

RIVER

BARK

RIVER

MENOMON

EE

RIV

ER

BR.

WILLOW

RIVER

FOX

CR.

LAKE

LAC

du

COURS

MENOMONEE

MENOM

ON

EE

LITTL

E

RIV

ER

CREEK

BR.

RI

VER

RIVER

N.




M E Q U O N M E Q U O N


MI L W A U K E E MI L W A U K E E

Ci ty o fCi ty o f

W A UWA T O SAWA UWA TOSA



UPPER MENOMONEE RIVER

LOWER MENOMONEE RIVER

LITTLEMENOMONEERIVER

UNDERWOOD CREEK

LILLY CREEK

WILLOWCREEK

BUTLER DITCH

NOR-X-WAY CHANNEL

DOUSMAN DITCH

WEST BRANCH MENOMONEERIVER

NORTH BRANCH MENOMONEE RIVER

LITTLE MENOMONEE CREEK


5/24

!

!!

!

!

!

!

!

!

!

!!

!

!

!!!

94

43

43

43

43

tu45

tu41

tu45

tu41

tu45

tu18

tu45

tu41tu18

tu45

tu41C i t y o f C i t y o f



M E Q U O N M E Q U O N


MI L W A U K E E MI L W A U K E E

Ci ty o fCi ty o f

W A UWA T O SAWA UWA TOSA



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-8MN-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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!

Pioneer Roa

MN-1


7/24

!

Pioneer Roa

MN-1


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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 (estimated

background 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 index

ranges from 0 - 2, with 0 being constant flow) indicator only

Menomonee River Standards/Targets

Fecal Coliform


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10/24

Figure Overall Project

Team Assessment

Analysis

Dissolved oxygenby flow

Moderate Note that the largest declines in dissolved oxygen concentrations occur at low flows. This is partly due to a combinationof decreased water agitation and higher temperatures (low flow conditions are often naturally associated with the warmsummer months). Decreases during low-flow conditions may be exacerbated by oxygen demand from organic material

and in-stream biochemical oxygen demand.

Fecal coliform by

flow

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 the higher

flows, fecal coliform counts exceed the regulatory standard about 50% of the time. During low flows and dry conditions,

the standard is met well over 75% of the time. This would also be the safest time for any recreational uses (boating,

swimming, wading, etc.), although the amount of water in the stream may limit recreational uses to wading.

Phosphorus by

flow

Very Good to

Good

Concentrations of phosphorus only exceed the planning guideline at higher flows. This suggests that the excess

phosphorus is originating from non-point sources. The similarities between the phosphorus and suspended solids data

suggest that the phosphorus may be associated with suspended sediment.

Suspended solids

by 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-suspended

stream sediments.


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Flashiness Index

Reach DescriptionRichards Baker

Flashiness Index

6 North Branch Menomonee River 0.30

Average Daily Flows

North Branch Menomonee River (6)

0

5

10

15

20

25

30

35

40

45

50

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

AVERA

GEDAILYFLOW(CF

S


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Existing Water Quality Data

AssessmentPoint

Water QualityIndicator

Statistic ConditionExisting

Mean (cells per 100 ml) 701Fecal Coliform Bacteria(annual)

Percent compliance with single samplestandard (


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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

9-10

>10

Average DO (mg/L)

AverageNu

mberofDaysPerYear

Menomonee River @ North Branch Menomonee River (RI 6)


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0

40

80

120

160

200

240

280

320

360

400

0-400

400-600

600-1000

1000-2000

2000-3000

3000-4000

4000-5000

>5000

Average Fecal Coliform (#/100ml)

AverageNumberofDaysPerYear


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Menomonee River @ North Branch Menomonee River (RI 6 )

0

40

80

120

160

200

240

280

320

360

400

0-0.05

0.05-0.1

0.1-0.15

0.15-0.2

0.2-0.25

0.25-0.3

0.3-0.35

0.35-0.4

0.4-0.45

0.45-0.5

>0.5

Average TP (mg/L)

Avera

geNumberofDaysPerYe

ar


16/24


0

40

80

120

160

200

240

280

320

360

400

0-25

25-50

50-75

75-100

100-125

125-150

150-175

175-200

>200

Average TSS (mg/L)

AverageN

umberofDaysPerYear


17/24


18/24


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20/24


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1

10

100

0 10 20 30 40 50 60 70 80 90 100

Flow Duration Interval (%)

Concentra

tion(mg/L)

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

North Branch Menomonee River Reach 006Dissolved Oxygen

Modeled Flow Data

DryConditions

LowFlows

Mid-rangeFlows

HighFlows

MoistConditions


22/24

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


Concentratio

n(cfu/100mL)

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

North Branch Menomonee River Reach 006

Fecal Coliform

Modeled Flow Data

DryConditions

LowFlows

Mid-rangeFlows

HighFlows

MoistConditions


23/24

0.01

0.10

1.00

0 10 20 30 40 50 60 70 80 90 100


Concentra

tion(mg/L)

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

North Branch Menomonee River Reach 006Total Phosphorus

Modeled Flow Data

DryConditions

LowFlows

Mid-rangeFlows

HighFlows

MoistConditions


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1

10

100

1000

0 10 20 30 40 50 60 70 80 90 100


Concentra

tion(mg/L)

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

North Branch Menomonee River Reach 006Total Suspended Solids

Modeled Flow Data

DryConditions

LowFlows

Mid-rangeFlows

HighFlows

MoistConditions

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