In Collaboration With

Pepe Lopez, Luis Girado, & Orlando Diaz Everglades Research and Education Center

Sediment and Particulate Control BMPs

September 29, 2016

Introduction

BMP Photos – Participant’s Thoughts Objectives

Implementation

Economics

Project Graphs Particulate Phosphorus

SFWMD EAA Basin Data

Dissolved

Sediment

100% Phosphorus

40 %

60 %

Soluble P:

Particulate P:

Fertilizer/Soil

Soil & Detritius

BMP PTS DESCRIPTION

NUTRIENT CONTROL : MINIMIZE MOVEMENT OF NUTRIENTS OFF-SITE

Nutrient Application Control 2½ Controlled application of nutrients; banding, controlled application

Nutrient Spill Prevention 2½ Formal spill protocols: storage, handling, transfer, and education/instruction

Rotational Vegetable Planting 2½ Rotation planting of high P/low P demand crops to avoid P build up

Plant Tissue Analysis 2½ Determines plant nutrient requirements via tissue testing

Soil Test Based Fertilization 5 Determine soil P requirements and follow standard recommendations

Split Nutrient Application 5 Applying split P without exceeding total recommendation

Slow Release P Fertilizer 5 Specially treated fertilizer

Reduced P Fertilization 5 P application rate is at least 30% below recommendation

WATER MANAGEMENT : MINIMIZE THE VOLUME OF OFF-SITE DRAINAGE DISCHARGE

½ Inch Detained 5 Delay discharge: based on measuring daily rain events using a rain gauge

1 Inch Detained 10 Delay discharge: based on measuring daily rain events using a rain gauge

Improved Infrastructure 5 Re-circulate water; fallow field flood; increase water detention

Water Table Management 5 Optimizing drainage and irrigation schedules to decrease discharge

PARTICULATE P AND SEDIMENT CONTROL : MINIMIZE MOVEMENT OF PARTICULATE MATTER AND CANAL SEDIMENTS

Any 2

Any 4

Any 6

Any 8

2½

5

10

15

• Leveling fields • Slow drainage velocity near pumps

• Grassed swales/field ditch connections

• Ditch bank berms • Canal cleaning program

• Aquatic weed control • Field ditch drainage sumps

• Barriers at discharge locations • Ditch bank stabilization

• Sediment sump/trap in canals

• Soil stabilization through infrastructure improvements

• Cover crops • Culvert bottoms above ditch bottoms

• Vegetated ditch banks

Other BMPs TBD BMPs proposed by permittee and accepted by SFWMD

Land leveling Raised culverts

Ditch/canal bank berms Canal cleaning

Sediment sump Upstream pump sump

Grassed ditch banks Drainage ditch sump

Cover crops Weed boom/trash racks

Riser boards Infrastructure mods

Aquatic weed control Others

Objective(s):

Implementation:

Benefits:

Economics:

Objective(s):

Implementation:

Benefits:

Economics:

Floating Barriers or Weed Booms

Objective(s):

Implementation:

Benefits:

Economics:

Objective(s):

Implementation:

Benefits:

Economics:

Objective(s):

Implementation:

Benefits:

Economics:

Main Canal Bank Berm

SlopeRoad Road

Crop Crop

Slope

Vegetated

Canal Banks

Caprock

BMain Canal Bank Berm

SlopeRoad Road

Crop Crop

Slope

Vegetated

Canal Banks

Caprock

B

Field Ditch Bank Berm

Vegetated

Ditch Banks

Caprock

Crop Crop

Soil

A

Soil Berm Soil Berm

Field Ditch Bank Berm

Vegetated

Ditch Banks

Caprock

Crop Crop

Soil

A

Soil Berm Soil Berm Objective(s):

Implementation:

Benefits:

Economics:

Objective(s):

Implementation:

Benefits:

Economics:

Objective(s):

Implementation:

Benefits:

Economics:

RoadRiser

Field Ditch Sump

Dra

inag

e C

anal

Culvert Caprock

Sediment

Accumulation

RoadRiser

Field Ditch Sump

Dra

inag

e C

anal

Culvert Caprock

Sediment

Accumulation

Place Spoil Here

Objective(s):

Implementation:

Benefits:

Economics:

Objective(s):

Implementation:

Benefits:

Economics:

Objective(s):

Implementation:

Benefits:

Economics:

Canal Cleaning Program:

Where to Place the Sediment?

Better

Bad

Best

Event UF9200A-276 Year 2000

Particulate Phosphorus and Velocity

0.0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

276.0 277.0 278.0 279.0 280.0 281.0 282.0

Decimal Date

PP

Co

nce

ntr

atio

n (

mg

/l)

0.00

0.05

0.10

0.15

0.20

0.25

0.30

0.35

0.40

0.45

0.50

Vel

oci

ty (

m/s

)

PP

Velocity

Start-Up Flush

Pump

Cycling

Cumulative High

Velocity

Re-Start

Flush

Re-Start

Flush

Spike

Water Year % Reduction

WY2011 79%

WY2012 71%

WY2013 41%

WY2014 63%

WY2015 79%

WY2016 27%

0

20

40

60

80

100

120

140

160

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

[P]

(pp

)

EAA Monthly FWM TP

WY2013 - 141 ppbWY2014 - 94 ppbWY2015 - 47 ppbWY2016 - 151 ppb

0

2

4

6

8

10

12

14

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

Rai

n (

inch

es)

EAA Rainfall MonthlyWY2013 - 54 InchesWY2014 - 53 InchesWY2015 - 44 InchesWY2016 - 50 inches

Water Year % Reduction

WY2011 79%

WY2012 71%

WY2013 41%

WY2014 63%

WY2015 79%

WY2016 27%

-20,000

-10,000

0

10,000

20,000

30,000

40,000

50,000

60,000

70,000

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

P L

oad

(K

gs)

EAA Monthly P LoadWY2013 - 154 MTWY2014 - 105 MTWY2015 - 39 MTWY2016 - 151 MT

THANK YOU!

Questions?