PINEY POINT

Water Management Plan FY04/05

Major Transfer Categories

0

100200

300

400500

600

700800

900

10001100

1200

13001400

1500

LimeTreated

DomesticWWTP

IndustrialReuse

RO Barge Total

Mill

ion

Gal

lon

s 2004

2003

2002

2001

15-Day Average Ammonia Loading 2003-2004

0

200

400

600

800

1000

1200

1400

1600

1/24

/03

3/24

/03

5/24

/03

7/24

/03

9/24

/03

11/2

4/03

1/24

/04

3/24

/04

5/24

/04

7/24

/04

NH3 loading, lbs/day Target loading lbs/day

15-Day Average Ammonia Loading - 2004

0

50

100

150

200

250

300

350

1/1/

04

1/15

/04

1/29

/04

2/12

/04

2/26

/04

3/11

/04

3/25

/04

4/8/

04

4/22

/04

5/6/

04

5/20

/04

6/3/

04

6/17

/04

7/1/

04

7/15

/04

7/29

/04

NH3 loading, lbs/day Target loading lbs/day

Daily Ammonia Concentration 12/03 - 8/04

0

5

10

15

20

25

30

35

4012

/1/0

3

1/1/

04

2/1/

04

3/1/

04

4/1/

04

5/1/

04

6/1/

04

7/1/

04

8/1/

04

NH

3, m

g/l

NH3, mg/l

Surface Water Discharge

0

5,000,000

10,000,000

15,000,000

20,000,000

Gallo

ns pe

r Wee

k

R. Osmosis

Double Lime

TotalDischarge

The Updated Near-Term and Long-TermConsumption Rates are as Follow:

• August 2004:• October 2006:• December 2006:

1.0 MGD

0.5 MGD

0.3 MGD

May be decreased even further depending on conditions

FY 04/05Water Management Plan:

• Reverse Osmosis

• New Spray Evaporation System

• Slurry Wall

• Double Lime and Aeration System

AMMONIAREMOVAL

PONDS

PLANNED SPRAYEVAPORATION SYSTEM

LIME SLUDGEDISPOSAL CELL

SECOND STAGELIME TREATMENT

FIRST STAGELIME TREATMENT

OVERVIEW OF WATER MANAGEMENT SYSTEMS

U.S. FILTERREVERSE OSMOSIS

SYSTEM

Ph Adjustment

CURRENTPROCESS WASTEWATER MANAGEMENT PLAN

Alternative Jul-Sept. 2003 Oct-Dec 2003 Jan-Mar 2004 Apr-June 2004 FY 2005

(gpd) (gpd) (gpd) (gpd) (MM Gals)

Total Required 1,000,000 1,000,000 1,000,000 1,000,000 365

Evaporation -0- 0-200,000 50,000-200,000 50,000-200,000 54

Reverse Osmosis 400,000- 400,000- 400,000- 0-400,000 146

700,000 700,000 700,000

600,000 600,000 550,000 950,000 Lime Precip. 300,000- 100,000- 100,000- 400,000- 165

Discharge Quality

Scenario TN lbs/day

A. Average Full year 32

B. 10-04 thru 6-05 (withevap)

19-27

C. RO early termination 50

D. Worst Case 100

Piney Point ITN

• Preference for proposals that use proven and tried methods, and higher ranking given to plans that minimize ammonia nitrogen loadings to surface waters.

• Respondents can utilize DEP water management plan or develop their own.

Late 2006/Early 2007 Water Management Plan

• After site closed process water will consist of 0.3 MGD seeping from the closed stacks

• Potential Post Closure Water Management Options

• Spray Evaporation• Spray Irrigation• Tie in to Manatee County sewer