Flow Data

Inflow

W-3

M-1

ST-2 ST-1F-1

LS-3

LS-2FS

LS-1

M-2F-2

M-3

Wetland Cell(W-1)

Wetland Cell(W-2)

AS-1

AS

-4

AS

-2AS-3

F-3R

ecirc

ulat

ion

ACT-1

ACT-2

NNot to scale

LS-4(To city)

LS-2

Lift station/Dosing Chamber

Automatic Sampling Station

M-4

Flume Flow meter

Effluent

Magnetic Flow meter

Weather station

V notch weir Flow meter

Flow splitter

Inflow

W-3

M-1

ST-2 ST-1F-1

LS-3

LS-2FS

LS-1

M-2F-2

M-3

Wetland Cell(W-1)

Wetland Cell(W-2)

AS-1

AS

-4

AS

-2AS-3

F-3R

ecirc

ulat

ion

ACT-1

ACT-2

NNot to scale

LS-4(To city)

LS-2

Lift station/Dosing Chamber

Automatic Sampling Station

M-4

Flume Flow meter

Effluent

Magnetic Flow meter

Weather station

V notch weir Flow meter

Flow splitter

Inflow

W-3

M-1

ST-2 ST-1F-1

LS-3

LS-2FS

LS-1

M-2F-2

M-3

Wetland Cell(W-1)

Wetland Cell(W-2)

AS-1

AS

-4

AS

-2AS-3

F-3R

ecirc

ulat

ion

ACT-1

ACT-2

NNot to scale

LS-4(To city)

LS-2

Lift station/Dosing Chamber

Automatic Sampling Station

M-4

Flume Flow meter

Effluent

Magnetic Flow meter

Weather station

V notch weir Flow meter

Flow splitter

W-3

M-1

ST-2 ST-1F-1

LS-3

LS-2FS

LS-1

M-2F-2

M-3

Wetland Cell(W-1)

Wetland Cell(W-2)

AS-1

AS

-4

AS

-2AS-3

F-3R

ecirc

ulat

ion

ACT-1

ACT-2

NNot to scale

LS-4(To city)

LS-2

Lift station/Dosing Chamber

Automatic Sampling Station

M-4

Flume Flow meter

Effluent

Magnetic Flow meter

Weather station

V notch weir Flow meter

Flow splitter

Sample data taken from Nov 3 to Nov 19

Surge M-1 (Wetland) M-2 (Recirc) M-3 (Biofield) M-4 (Effluent)gallons/day gallons/day gallons/day gallons/day gallons/day

1516 12839 8444 164 5240

Flow #1 Flow #2 Flow #3 Tol Rain Cell #1 Cell #2gallons/day gallons/day gallons/day mm inch inch

58836 4868 3749 3.4 41.0 41.1

Inflow vs. outflow Outflow consistently

greater than inflow (for both sunny and rainy days with steady cell height)

Instrument error or other unidentified input?0

2000

4000

6000

8000

10000

12000

14000

16000

18000

20000

1103 1106 1109 1112 1115 1118

Date

gallo

ns /

day

SurgeM-4 (Effluent)

0

5

10

15

20

25

1103 1106 1109 1112 1115 1118

Date

mm

/ da

y

Rainfall

0

5

10

15

20

25

30

35

40

45

1103 1106 1109 1112 1115 1118

Date

inch Cell #1

Cell #2

0

50000

100000

150000

200000

250000

300000

1103 1106 1109 1112 1115 1118

Date

gallo

ns /

day

SurgeFlow #1

Problem of F1 reading

0

20

40

60

80

100

16:00 17:00 18:00 19:00 20:00

Dis

char

ge (

gpm

) Surge

F1

M1

M2

F2

Normal F1

Abnormal F1Recirculation

Surge

Magnetic meters

0

10000

20000

30000

40000

50000

60000

1103 1106 1109 1112 1115 1118

Date

gallo

ns /

day M-1 (Wetland)

M-2 (Recirc)M-3 (Biofield)M-4 (Effluent)

From F2 to F3 to M4

0

2000

4000

6000

8000

10000

12000

14000

16000

18000

20000

1103 1106 1109 1112 1115 1118

Date

gallo

ns /

day

Flow #2Flow #3M-4 (Effluent)

M4 should be less than F2 and F3

Discharge From Water Softer Building to LS4

0

20

40

60

80

100

16:00 17:00 18:00 19:00 20:00

Dis

char

ge (g

pm)

Surge

F1

M1

M2

F2Normal F1

Abnormal F1Recirculation

Surge

F1 consistent with surge tank except during recycle. Backflow problem exists.

Expected Errors with open channel flow meters

Weir FlumesHead ft. Head in. GPM Error GPM Error

0.01 0.12 0.0022 567.27%0.02 0.24 0.0126 211.43% 0.5627 131.43%0.03 0.36 0.0348 126.21% 1.179 77.15%0.04 0.48 0.0714 89.58% 1.937 55.51%0.05 0.6 0.1247 69.29% 2.833 43.71%0.06 0.72 0.1967 56.43% 3.865 36.36%0.07 0.84 0.2892 47.55% 5.036 31.24%0.08 0.96 0.4038 41.07% 6.347 27.57%0.09 1.08 0.5420 36.18% 7.805 24.78%0.1 1.2 0.7054 9.417

0.34 4.08 15.0400 9.02%0.35 4.2 16.1700 8.68%0.36 4.32 17.3400 8.51%0.37 4.44 18.5700 8.27%0.38 4.56 19.8500 8.10%0.39 4.68 21.1900 7.82%0.4 4.8 22.5700 7.66%

0.41 4.92 24.0100

Greyline Accuracy0.25% F.S.= 12.0000 Ft. Repeatability0.10% Linearaity

W-3

M-1

ST-2 ST-1F-1

LS-3

LS-2FS

LS-1

M-2F-2

M-3

Wetland Cell(W-1)

Wetland Cell(W-2)

Biofield

AS-1AS-4

AS-2

AS-3

F-3R

ecirc

ulat

ionACT-1

ACT-2

NNot to scale

LS-4(To city)

LS-2

Lift station/Dosing Chamber

Automatic Sampling Station

M-4

Flume Flow meter

Effluent

Magnetic Flow meter

Weather station

V notch weir Flow meter

Flow splitter

Surge Tank

Sampling Points

% Removal AS-1 to AS-4 vs. Operational Days

0

10

20

30

40

50

60

70

80

90

100

0 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300

Days Since Planting, 8/12/2003

% R

emov

al (A

S-1

- AS-

4)

BOD TSS NH3 NH3 BOD TSS

Wetland Performance

Continuing sample analysis

Samples taken from Surge Tank in Oct. & Nov. Chlorine Test performed in October

Wetland Performance

AS1-AS4 Removal Last Year(9/28/05)

This Year(9/15/06)

TSS 82% 80%

BOD5 65% 67%

NH3-N 68% 57%

Chlorine Test Sample analyzed from AS-2 DPD Titrimetric test: positive results

Oxidizing agents (Chlorine or other products) may be present in waste stream Found in antibacterial soaps, cleaning supplies Possible cause for stress to plants

Wetland Performance

DPD Colorimetric test Can determine quantity of oxidizing agent

present To be done at more sampling points

Are septic tanks working properly? Biodegradation occuring, or Settling system, oxidants bypass DPD test will give insight

Upcoming Work