l-8 reservoir pilot test - loxahatchee river district reservoir pilot test.pdf · following...
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L-8 Reservoir Pilot Test -Preliminary Flow and Water Quality Monitoring Results
Provisional Data for Discussion Purposes Only3-28-11
Dave SwiftLead ScientistSouth Florida Water Management District
Location of Flow Monitoring Sites =
City of WPB Control 2 Pump
Station
L-8 Reservoir Pump
Control 3 Structure
“4 Point Area”
G-161
G-160
G-92
Lainhart Dam
West Palm Beach Control 2 Pump Station (150 cfs)
L- 8 Reservoir Pump (88 cfs)
Discharge to L- 8 Canal
0
20
40
60
80
100
120
140
160
180
2/25/1
1
2/26/1
1
2/27/1
1
2/28/1
13/1
/113/2
/113/3
/113/4
/113/5
/113/6
/113/7
/113/8
/113/9
/11
3/10/1
1
3/11/1
1
3/12/1
1
3/13/1
1
3/14/1
1
3/15/1
1
3/16/1
1
3/17/1
1
3/18/1
1
Flow
(cub
ic fe
et p
er s
econ
d)
CWPB Control 2 Pump Station
Control 3 (Est) - water entering westerm GWP
L-8 Reservoir
Control 4 (CWPB Water Supply)
G-160
G-161
Start of Pilot test
Volume Acre FeetL-8 Reservoir 3,082Control 2 4,934Control 3 (est) 4,046Control 4 1,979G-161 814G-160 1,182
Summary of L-8 Reservoir Pilot Test Flows
05
101520253035404550
Flow
(cub
ic fe
et/
seco
nd)
G-92
Lainhart Dam
Start of L-8 Pilot test
MFL
ADCP measurement at G-92 on 3/14/11 = 44.9 cfs
ADCP measurement at Lainhart Dam on 3/14/11 = 42.7 cfs
Stream Flow Measurements at G-92 and Lainhart Dam
Stream Flow Measurements
taken on 3/14/11
Difference of ~16 cfs
Volume (Acre Feet)G-161 814G-160 1,182G-92 1,454Lainhart Dam 841
M-Canal
WPB Control 2 Pump Station
Flow Losses for Reach # 1 (Control 2 to Control 3)3/17/11
L-8
Rese
rvoi
r
Grassy Waters Preserve
Lake Mangonia
Clear Lake
Provisional Data
Northlake Blvd.
Southern Blvd.
Control 3
Reach #1 (9.3 miles)158 cfs
129 cfs
18% Loss (29 cfs)
Acreage
Citrus Groves
M-Canal
Reach # 2 (Control 3 to “4 Point Area” in Grassy Water Preserve)
Grassy Waters Preserve
Provisional Data Northlake Blvd.
Control 3
57% loss (73 cfs) due tostorage, ET & seepage
“4 Point Area”
Reach # 2 (3.5 miles)
129 cfs
56 cfs
G-161
56 cfs
30 c
fs
14 cfs12 cfs
To Control 4
To G
-161
Note: Control 4 closed during flow measurements
“4 Point Area”
Flow Distribution within “4 Point Area”
M-Canal
Reach # 3 (“4 Point Area” to G-161 Structure)
Grassy Waters Preserve
Provisional Data Northlake Blvd.
Control 3
“4 Point Area”
Reach # 3 (4.5 miles)
G-161 30 cfs
30 cfs
Water Quality Monitoring
(Chlorides & Total Phosphorus)
Pilot Test WQMonitoring Sites, L-8 Reservoir, L-8 Canal & M-Canal
City of WPB Control 2 Pump Station
(150 cfs)
L-8 Canal Mixing Zone (800 meters)
L-8
Res
ervo
ir
Southern Blvd.
L8MZBN
L8MZBS
L8-04.3
SW6 Out
L8MCNL
Legend:
= WQ Monitoring station
Pilot Test WQ Monitoring Sites located in Grassy Waters Preserve & Lake Mangonia
M-Canal
WPB Control 2 Pump Station
188
323
204
GW 4 GW 3 GW7
GW 8
G-161
LM 1
Baseline: Chloride Concentrations* prior to L-8 Reservoir Pilot Test (mg/l) (2/26/11)
L-8
Rese
rvoi
r
Grassy Waters Preserve
Grassy Waters Preserve
Lake Mangonia
Clear Lake
61
Provisional Data
Legend:= Established Water quality station as per Exemption
Northlake Blvd.
Southern Blvd.
Note: Class I Water Quality Standard (Drinking Water), chloride levels shall not exceed 250 ppm
* Chlorides calculated from regression equations
104
M-Canal
WPB Control 2 Pump Station
298
381
340
138
GW 4 GW 3 GW7
GW 8
G-161
LM 1
Week 1: Chloride Data (mg/l) from L-8 Reservoir Pilot Test(3/7/11)
L-8
Rese
rvoi
r
Grassy Waters Preserve
Grassy Waters Preserve
Lake Mangonia
Clear Lake
63
Provisional Data
Legend:= Established Water quality station as per Exemption
Northlake Blvd.
Southern Blvd.
Note: Class I Water Quality Standards (for drinking water), chloride levels shall not exceed 250 mg/l.
M-Canal
WPB Control 2 Pump Station
381
385
371
275
GW 4 GW 3 GW7
GW 8
G-161
LM 1
Week 2: Chloride Data (mg/l) from L-8 Reservoir Pilot Test(3/15/2011)
L-8
Res
ervo
ir
Grassy Waters Preserve
Grassy Waters Preserve
Lake Mangonia
Clear Lake
71
Provisional Data
Legend:= Established Water quality station as per Exemption= Grab sample collected on 3/15/11
Northlake Blvd.
Southern Blvd.
*Some of the calculated chloride reading at L8MZBS & L8MZBN may have been affected by low canal levels
Note: Class I Water Quality Standards (for drinking water), chloride levels shall not exceed 250 mg/l
M-Canal
WPB Control 2 Pump Station
340
390
147
286
GW 4 GW 3 GW7
GW 8
G-161
LM 1
Most Recent Chloride Data (mg/l) from L-8 Reservoir Pilot Test(3/23/11)
L-8
Rese
rvoi
r
Grassy Waters Preserve
Lake Mangonia
Clear Lake
83
Provisional Data
Legend:= Established Water quality station as per Exemption
Northlake Blvd.
Southern Blvd.
Note: Class I Water Quality Standards (for drinking water), chloride levels shall not exceed 250 mg/l
Chloride Levels in the L8 reservoir, L8 Canal & M Canal
DATE2/2
4/201
1
2/25/2
011
2/26/2
011
2/27/2
011
2/28/2
011
3/1/20
11
3/2/20
11
3/3/20
11
3/4/20
11
3/5/20
11
3/6/20
11
3/7/20
11
3/8/20
11
3/9/20
11
3/10/2
011
3/11/2
011
3/12/2
011
3/13/2
011
3/14/2
011
3/15/2
011
3/16/2
011
3/17/2
011
3/18/2
011
3/19/2
011
3/20/2
011
3/21/2
011
3/22/2
011
3/23/2
011
3/24/2
011
3/25/2
011
Chl
orid
es (c
alcu
late
d) (m
g/L)
0
50
100
150
200
250
300
350
400
450L8MZBS
L8MZBN
L8RES
L8043
L8MCNL
Star
t of P
ump
Test
Chloride Levels within L-8 Reservoir, L-8 Canal and M-Canal
Chloride Levels in Grassy Waters Preserve, G-161, & LMI
DATE2/2
4/201
1
2/25/2
011
2/26/2
011
2/27/2
011
2/28/2
011
3/1/20
11
3/2/20
11
3/3/20
11
3/4/20
11
3/5/20
11
3/6/20
11
3/7/20
11
3/8/20
11
3/9/20
11
3/10/2
011
3/11/2
011
3/12/2
011
3/13/2
011
3/14/2
011
3/15/2
011
3/16/2
011
3/17/2
011
3/18/2
011
3/19/2
011
3/20/2
011
3/21/2
011
3/22/2
011
3/23/2
011
3/24/2
011
3/25/2
011
Chl
orid
es (c
alcu
late
d) (m
g/L)
0
50
100
150
200
250
300
350
400
450GW3
GW4
G161
GW7
GW8
LMI St
art o
f Pum
p Te
st
L- 8 Reservoir Pump (75 cfs)
Discharge to L- 8 Canal
Total Phosphorus Levels
M-Canal
WPB Control 2 Pump Station
95
15
120
98
GW 4 GW 3 GW7
GW 8
G-161
LM 1
Baseline Total P Data (ppb) from L-8 Reservoir Pilot Test(2/25/11)
L-8
Rese
rvoi
r
Grassy Waters Preserve
Grassy Waters Preserve
Lake Mangonia
Clear Lake
20
Provisional Data
Legend:= Established Water quality station as per Exemption
Northlake Blvd.
Southern Blvd.
Units = parts per billion (ppb)
M-Canal
WPB Control 2 Pump Station
26
16
40
55
GW 4 GW 3 GW7
GW 8
G-161
LM 1
Pumping for 3 days: Total P Data (ppb) from L-8 Reservoir Pilot Test(3/3/11)
L-8
Rese
rvoi
r
Grassy Waters Preserve
Grassy Waters Preserve
Lake Mangonia
Clear Lake
20
Provisional Data
Legend:= Established Water quality station as per Exemption
Northlake Blvd.
Southern Blvd.
Units = parts per billion (ppb)
M-Canal
WPB Control 2 Pump Station
43
20
50
56
GW 4 GW 3 GW7
GW 8
G-161
LM 1
Pumping for 9 days: Total P Data (ppb) from L-8 Reservoir Pilot Test(3/9/11)
L-8
Rese
rvoi
r
Grassy Waters Preserve
Grassy Waters Preserve
Lake Mangonia
Clear Lake
18
Provisional Data
Legend:= Established Water quality station as per Exemption
Northlake Blvd.
Southern Blvd.
Units = parts per billion (ppb)
0
20
40
60
80
100
120
140
L8MCNL
L8043
L8MZBN
L8MZBS
SW6OUT
Start of Pilot Test
TP (p
arts
per
bill
ion)
Total Phosphorus in L-8 Reservoir, L-8 Canal and Control 2 Pump Station(2/25/11- 3/09/11)
Provisional Data
0
20
40
60
80
100
120
140
160
GW3
GW4
GW7
GW8
LMI
G161
TP (p
arts
per
bill
ion)
Total Phosphorus for Grassy Waters Preserve, G-161 and LM 12/25/11 – 3/09/11
Start of Pilot Test
Provisional Data
Next Steps Following completion of the 2011 Pilot Test:
A report will be prepared summarizing the L-8 Reservoir pilot test and its flow and water quality results for submission to FDEP
The inter-agency technical team will reconvene to discuss a plan of study for the 2012 Pilot test (Option1B) and other longer term options previously identified by the District
A work plan for Option 1B is currently being considered by management as part of the 2012 budget process