2007). recommendation: receive status report. · • the consolidated permit wellfields 12-month...

TAMPA

WATERSupplying Water To The Region

AGENDA ITEM C17

DATE: August 3, 2007

TO: JerrY L. Maxwell, General Manager

FROM: Donald J. Polmann, Director of Science and Engineering"

SUBJECT: Production and Demand Forecast Update and Hydrologic Conditions Reportfor June 2007 and July 2007 and the past 12-Month Period (August 1, 2006through July 31, 2007) - Status Report for June &]uly

SUMMARY: The following report summarizes water demand and hydrologic conditionsin the three-county Tampa Bay area (Tri-County area) during June 2007 andJuly 2007 and the past 12-Month Period (August 1, 2006 through July 31,2007).

RECOMMENDATION: Receive Status Report.

I. Rainfall/Climate

Tampa Bay Water monitors daily rainfall at numerous sites on and in the vicinity of ourfacilities. These data are compared to historical rainfall data to help assess the currenthydrologic conditions near our wellfields. The data are summarized below and presentedgeographically in Figures 1 through 3.

• Tri-county rainfall during June 2007 ranged from 4.8 to 9.7 inches and averaged 0.5of an inch below the historical average for the month.

• Tri-county rainfall during July 2007 ranged from 5.1 to 15.2 inches and averaged 0.5of an inch above the historical average for the month.

• Tri-county rainfall during the 12-month period ending July 31, 2007 ranged from39.2 to 50.0 inches. The region remains in a Level III Water Supply Crisis per theapproved Drought Mitigation Plan.

The National Oceanic and Atmospheric Administration (NOAA) develops short and long-term projections (outlooks) for temperature and precipitation. The NOAA outlooks for thenext 30 days and the next 90 days are as follows:

• August: Above-normal temperatures, normal precipitation

• August - October: Above-normal temperatures, above-normal precipitation

t:\sci_eng_board\hydroconditions\aug07\jun07jul07hydro2.doc

Jerry L. MaxwellAugust 3, 2007

II. Regional Demand and Production

Water production and demand information for June 2007 and July 2007 are summarizedbelow and provided in additional detail in Tables 1 through 4, and Figures 4 through 6.

• June 2007 Member water demand was 266.87 mgd.

• July 2007 Member water demand was 256.36 mgd.

• Member water demand during the 12-month period ending July 31, 2007 was 255.62mgd, or about 4% lower than water demand for the preceding 12-month period.

• The Consolidated Permit Wellfields 12-month running average production for theperiod ending July 31, 2007 was 113.7 mgd.

• The South Central Hillsborough Wellfield 12-month running average production forthe period ending July 31, 2007 was 22.85 mgd.

• The average Tampa Bay Water source water distribution for the past 12 months was:

• Groundwater - 146.7 mgd (76.0% of total);

• Surface Water - 42.5 mgd (22.0% of total); and

• Seawater Desalination — 3.3 mgd (2.0% of total).

III. Groundwater Levels (Floridan Aquifer and Surficial Aquifer)

Groundwater levels are a primary factor affecting production and wellfield managementdecisions. A general summary of groundwater level conditions is provided below. Figures 7through 14 show groundwater level conditions in or near the wellfields for approximatelythe past 19 years. Despite below-normal rainfall for the past 12 months, groundwater levels(having declined with the rainfall deficit) remained relatively high at many of our wellfieldsas compared to historical levels.

• Groundwater levels generally increased about 0.8 foot during June 2007.

• Groundwater levels generally increased about 0.7 foot during July 2007.

• Groundwater levels at the end of July 2007 were generally 3.7 feet lower than inJuly 2006.

• 3 of 40 OROP monitor wells were above target levels at the end of June 2007.

• 3 of 40 OROP monitor wells were above target levels at the end of July 2007.

• 11 of 40 OROP monitor wells had higher water levels at the end of June 2007 thanat the end of May 2007.

• 15 of 40 OROP monitor wells had higher water levels at the end of July 2007 thanat the end of June 2007.

t:\sci_eng_board\hydroconditions\augU7\jun07jul07hydro2.doc

Jerry L. MaxwellAugust 3, 2007

IV. Surface Water Flows and Levels

Hydrologic conditions in rivers and kkes in the region are closely monitored by Tampa BayWater, SWFWMD, and member governments. Hydrologic conditions in the three TampaBay Water surface water sources (Alafia River, Hillsborough River and Tampa Bypass Canal)and 13 indicator lakes in the tri-county region are summarized below. Figures 15 through 18show surface water conditions in the river sources and the 13 indicator lakes through July2007. Table 5 shows the long-term monthly expected surface water available to Tampa BayWater from these three sources and the actual monthly available water for Water Year 2006and Water Year 2007 to date. Figure 19 shows the monthly storage and withdrawal volumesand cumulative storage volume of the C.W. Bill Young Regional Reservoir. In July 2007, 0.20billion gallons were delivered to the reservoir and 0.72 billion gallons were withdrawn. Storedwater was 2.40 billion gallons as of July 31, 2007.

• Flow in the Alafia River was 83% below normal in June 2007, and 74% belownormal in July 2007.

• Flow in the Hillsborough River was 71% below normal in June 2007, and 75%below normal in July 2007.

• Flow in the Tampa Bypass Canal was 83% below normal in June 2007, and 67%below normal in July 2007.

• Due to drought conditions, surface water flow available for use by Tampa Bay Waterduring July 2007 was 21.6 MGD, 85% below the expected surface water availabilitybased on long-term (mean) flow records.

• As of July 31, 2007, none of the 13 indicator lakes were above their normal annuallevel. Two kkes were at or below their normal annual management levels, but abovetheir drought year low management levels. Eleven kkes were below their droughtyear low management levels.

• Average water levels in 13 indicator lakes decreased about 3.4 inches during June2007, and did not change during July 2007.

• Average water levels in the 13 indicator lakes at the end of July 2007 were about 21.0inches lower than water levels at the end of July 2006.

Attachments

t:\sci_eng_boarcl\hydroconditions\aug07\jun07jul07hydro2.doc

66.88 63.97 64.38Total 66.88 63.97 64.38

32.21 30.79 30.83Total 32.21 30.79 30.83

0.18 0.14 0.1519.21 18.20 19.360.58 1.04 1.03

Total 19.97 19.39 20.53

9.59 9.41 9.323.64 4.27 4.44

14.93 16.94 17.71Total 28.16 30.61 31.47

2.95 2.91 2.860.41 0.42 0.44

TABLE 1

TRI-COUNTY MEMBER AVERAGE DAY DEMANDS - BY SERVICE AREA(ALL RATES IN MILLIONS OF GALLONS PER DAY)

Jul 01, 2005 -Jun 30, 2006

Jul 01, 2006 - Jun 30, 2007

Jun 2006Avg Day

Jun 2007Avg DayWater Service Area Delivery

St. PetersburgRegional System (4) 32.80

32.80

Pinellas CountyRegional System (4) 67.27

67.27

Tampa to Hillsb. Interconnect 1.1319.86

Pasco County

NW HillsboroughNWH Dispersed Wells 0.16Regional System (4) 18.57

Regional System (4) 17.5932.50

New Port Richey

Moon Lake Road WTP Infl. 10.40PCUD Disp Wells 4.52

Maytum WTP Infl. 3.27NPR City Wellfield 0.440.41 0.42 0.44

Total 3.36 3.33 3.30

4.01 5.07 7.6027.72 27.69 25.69

Total 31.72 32.76 33.28

77.27 71.87 66.08

5.04 8.83 16.99Total (3) 82.30 80.70 83.07

0.80 1.04 1.230.28 0.28 0.36

Total 1.09 1.31 1.59

142.28 143.81 156.87

122.33 117.75 110.00

264.61 261.55 266.87

Tampa

3.72South Hillsborough

Highview Booster Sta. 4.61

NPR City Wellfield 0.44

Hillsb. River WTP Eff. (adj. for ASR & Purchased Water)

63.83

Region To Tampa (4) 22.11

SCHWF and BUDWF to SCH 29.0333.64

Cypress Creek 0.531.51

Regional System (excludes augmentation) (1) 162.95

85.93Env. Augmentation

Cross Bar Ranch 0.98

(1) "Interconnected System" includes the Cypress Creek, Cross Bar Ranch, Northwest Hillsborough, Cypress Bridge, Morris Bridge, Eldridge Wilde, South Pasco, Section 21 and Cosme Odessa Wellfields.

(2) "Non-Interconnected System" refers to wellfields and surface water facilities serving specific regions such as the Starkey, North Pasco, and South Central Hillsborough Wellfields, the New Port Richey Wellfield, the Pasco County Dispersed Wells and the Hillsborough River.

(3) Tampa total = Hillsborough River WTP Effluent + Region to Tampa - Tampa to Hillsborough Interconnect - US 301 Interconnect - ASR storage. The WTP effluent is adjusted to reflect water being pumped into ASR and water purchased by Tampa Bay Water.

(4) "Regional System" includes the interconnected wellfields plus treated surface water, desalinated water and purchased water.

Non-Interconnected System (2) 112.77

Tri-County Member Demand (excludes augmentation) 275.72

Page 1 of 1Printed On 08/02/2007

66.81 64.36 65.98Total 66.81 64.36 65.98

32.23 30.69 30.32Total 32.23 30.69 30.32

0.15 0.14 0.0819.18 18.29 17.290.67 1.03 1.04

Total 20.00 19.46 18.42

9.74 9.40 9.143.88 3.91 4.50

15.21 16.96 16.38Total 28.83 30.27 30.02

2.98 2.91 2.810.41 0.38 0.45

TABLE 2

TRI-COUNTY MEMBER AVERAGE DAY DEMANDS - BY SERVICE AREA(ALL RATES IN MILLIONS OF GALLONS PER DAY)

Aug 01, 2005 -Jul 31, 2006

Aug 01, 2006 - Jul 31, 2007

Jul 2006Avg Day

Jul 2007Avg DayWater Service Area Delivery

St. PetersburgRegional System (4) 31.62

31.62

Pinellas CountyRegional System (4) 61.35

61.35

Tampa to Hillsb. Interconnect 1.1217.54

Pasco County

NW HillsboroughNWH Dispersed Wells 0.11Regional System (4) 16.32

Regional System (4) 16.0829.63

New Port Richey

Moon Lake Road WTP Infl. 9.27PCUD Disp Wells 4.28

Maytum WTP Infl. 2.87NPR City Wellfield 0.400.41 0.38 0.45

Total 3.38 3.29 3.26

4.08 5.29 6.7627.86 27.59 23.84

Total 31.94 32.88 30.60

77.28 65.32 71.43

5.04 9.36 6.33Total (3) 82.31 74.68 77.76

0.83 1.05 1.010.33 0.27 0.51

Total 1.16 1.33 1.52

142.55 144.94 143.07

122.96 110.68 113.29

265.51 255.62 256.36

Tampa

3.27South Hillsborough

Highview Booster Sta. 4.13

NPR City Wellfield 0.40

Hillsb. River WTP Eff. (adj. for ASR & Purchased Water)

77.57

Region To Tampa (4) 0.00

SCHWF and BUDWF to SCH 25.0529.18

Cypress Creek 0.561.38

Regional System (excludes augmentation) (1) 129.49

77.57Env. Augmentation

Cross Bar Ranch 0.82

(1) "Interconnected System" includes the Cypress Creek, Cross Bar Ranch, Northwest Hillsborough, Cypress Bridge, Morris Bridge, Eldridge Wilde, South Pasco, Section 21 and Cosme Odessa Wellfields.

(2) "Non-Interconnected System" refers to wellfields and surface water facilities serving specific regions such as the Starkey, North Pasco, and South Central Hillsborough Wellfields, the New Port Richey Wellfield, the Pasco County Dispersed Wells and the Hillsborough River.

(3) Tampa total = Hillsborough River WTP Effluent + Region to Tampa - Tampa to Hillsborough Interconnect - US 301 Interconnect - ASR storage. The WTP effluent is adjusted to reflect water being pumped into ASR and water purchased by Tampa Bay Water.

(4) "Regional System" includes the interconnected wellfields plus treated surface water, desalinated water and purchased water.

Non-Interconnected System (2) 120.67

Tri-County Member Demand (excludes augmentation) 250.15

Page 1 of 1Printed On 08/02/2007

TABLE 3

Consolidated Wellfield Current OROP Annual Production Limits and 12-Month Running Average through 7/31/07

Consolidated Permit 2006 Production Required 12-month running avgOct-98 Limit by County (4) Reduction (5) Thru 7/31/07 (6) Actual Reduction (7)

PASCO COUNTY (40%) (14.8 MGD)Cypress Creek Wellfield 26.0 OROP 17.50 8.5Cross Bar Ranch Wellfield 21.0 OROP 16.32 4.7South Pasco Wellfield 14.0 OROP 9.94 4.1Cypress Bridge Wellfield (50%) (1) 4.0 OROP 6.22 -2.2Starkey Wellfield (2) 15.0 OROP 12.16 2.8North Pasco Wellfield (2) 5.0 OROP 0.66 4.3

Total 85.0 70.2 14.8 62.80 22.20

HILLSBOROUGH COUNTY (20%) (7.4 MGD)Northwest Hillsborough Regional 9.0 OROP 9.02 0.0Cosme-Odessa Wellfield 10.0 OROP 8.97 1.0Section 21 Wellfield 10.0 OROP 5.23 4.8Morris Bridge Wellfield 12.0 OROP 8.35 3.7Cypress Bridge Wellfield (50%) 4.0 OROP 6.22 -2.2

Total 45.0 37.6 7.4 37.79 7.21

PINELLAS COUNTY (10%) (3.7MGD)Eldridge-Wilde Wellfield (3) 28.0 OROP 13.10 14.9

Total 28.0 24.3 3.7 13.10 14.90

TOTAL 158.0 OROP 25.9

OROP Rotation (30%) 11.1 MGD (5) -11.1 11.1

TOTALS 121.0 37.0 113.69 44.31

Notes (1): Cypress Bridge is split 50% in Pasco and 50% in Hillsborough - WUP Special Condition 2A. (2): Isolated Wellfields to Pasco County and New Port Richey. (3): Consolidated WUP special condition 2A allocates this wellfield to Pinellas Co. (4): Wellfield production quantities determined by OROP based on current conditions and not to exceed annual county allocation. (5): OROP rotation will determine allocation of 30% of reduction such that County reduction quantities shown are minima. (6): 12-month running average (actual pumpage). (7): Current reduction from Consolidated Permit Oct. 98 limits.

2003 calendar year distribution for the 11 wellfields: 158 MGD - 37 MGD (Replacement capacity) = 121 MGD.Partnership Agreement requires the following allocation of this reduction as: Pasco County = 40% (14.8 MGD), Hillsborough County = 20% (7.4 MGD), Pinellas County = 10% (3.7 MGD), and the remaining 30% (11.1) allocated by the OROP.

Reductions are based on 1998 Consolidated Permit Exhibit "A"; Referenced in Partnership Agreement.Compliance with Partnership in terms of percent reduction to be assessed annually with permit compliance.

County and Wellfield Facility

T:\Sci_Eng _Board\HydroConditions\Aug07\Table 3 OROP_2003 Limits_rev2

Regional Production Table

Month

Consolidated Permit Wellfields Actual Monthly

Production (mgd)

Surface Water Treatment

Plant Production (mgd) (1)

Seawater Desalination

Plant Production

(mgd)

South-Central Hillsborough Service Area

(mgd) (2)June 123.1 54.8 0.0 29.2July 91.9 51.7 0.0 25.0

August 133.5 15.1 0.0 30.1September 113.1 24.8 0.0 29.1October 109.7 48.1 0.0 37.4

November 109.5 44.7 0.0 34.1December 102.1 52.5 0.0 31.6

January (2007) 100.7 41.5 0.0 29.3February 94.1 45.8 0.0 29.4March 104.7 57.9 0.0 34.1April 125.0 53.0 5.7 36.8May 145.0 46.8 11.2 40.7June 112.9 42.9 15.5 33.0July 114.2 36.9 7.3 30.6

12-Month Average 113.7 42.5 3.3 33.0

Difference Between July 2007 and July 2006

22.3 -14.8 7.3 5.6

(1) Includes BUDW flow to Regional System(2) Includes South Central Hillsborough Wellfield and that portion of Brandon Urban Dispersed Wellfield water delivered to South-Central Hillsborough service area, and Regional deliveries to Highview.

TABLE 4

Table 5Tampa Bay Water Enhanced Surface Water System

Surface Water Availability

MONTH

Expected Surface Water(1) Availability(2)

(MGD)

WY 2006 Available Surface

Water (MGD)

WY 2007 Available Surface

Water (MGD)Oct 146.6 76.1 36.0Nov 54.0 87.1 13.8Dec 87.8 50.9 12.6Jan 117.0 24.9 15.4Feb 120.8 125.0 20.9Mar 127.1 19.4 8.3Apr 76.0 2.5 2.8May 45.5 1.8 0.6June 66.2 16.4 4.3July 145.3 41.7 21.6Aug 170.8 71.2Sept 181.7 143.4Annual Avg 111.6 55.0

(1) Based upon long-term/period of record (mean) flow data from the Hillsborough River, Tampa Bypass Canal, and Alafia River.(2) Based upon current infrastructure constraints and permitted withdrawal schedules.

t:\sci_eng_board\hydroconditions\feb07\table 5 surface watr availability.xls

Table 5Tampa Bay Water Enhanced Surface Water System

Surface Water Availability

0.012527 0.987473

0.148727 0.851273

t:\sci_eng_board\hydroconditions\feb07\table 5 surface watr availability.xls

June 2007 Rainfall

Figure 1

5.8” Example of ActualMonthly Rainfall

(-1.6”) - Variance FromNormal (NOAA)

July 2007 Rainfall

Figure 2

5.1” Example of ActualMonthly Rainfall


Cumulative Rainfall For The Past 12 Months(August 1, 2006 Through July 31, 2007)( g g J y )

Figure 3

40.8” Example of ActualRainfall


Regional Water Production

Regional W ater Production

240

Figure 4

160

200

240

Desal

S W T P * on-line 9/12/2002

80

120

160

duct

ion (m

gd) Desal

SW TP*

11 W ellfie lds

0

40

80

Pro

d

Feb-

05M

ar-0

5Apr-0

5M

ay-0

5Ju

n-05

Jul-0

5Aug-

05Sep

-05

Oct-0

5Nov-

05Dec

-05

Jan-0

6Fe

b-06

Mar

-06

Apr-0

6M

ay-0

6Ju

n-06

Jul-0

6Aug-

06Sep

-06

Oc t-0

6Nov-

06Dec

-06

Jan-0

7Feb

-07

Mar

-07

Apr-0

7M

ay-0

7Ju

n-07

Jul-0

7

DateS W T P * = S urface W ater T reatment P lant

Desal (mgd)

June 2007: 15.45

July 2007: 7.27

12 Month Running Average and Monthly Production - Consolidated WUP Wellfields

Figure 5

200210220

(12 month running average = 113.69 mgd as of 7/31/07)Monthly Production

(11 Wellfields)

150160170180190

MG

D

(11 Wellfields)

100110120130140150

du

ctio

n i

n M

12 Month Running Average

60708090

100

Pro

d

g g(11 Wellfields)

121 mgd Compliance

50

JUL (W

Y 1998

)JA

N (W

Y 1999

)JU

L (WY 19

99)

JAN

(WY 20

00)

JUL (W

Y 2000

)JA

N (W

Y 2001

)JU

L (WY 20

01)

JAN

(WY 20

02)

JUL (W

Y 2002

)JA

N (W

Y 2003

)JU

L (WY 20

03)

JAN

(WY 20

04)

JUL (W

Y 2004

)JA

N (W

Y 2005

)JU

L (WY 20

05)

JAN

(WY 20

06)

JUL (W

Y 2006

)JA

N (W

Y 2007

)JU

L (WY 20

07)

Actual productionWY 1998 through WY 2007 (To Date)7/31/07

South Central Hillsborough Service Area Demand and Supply pp y

Figure 6

32

34

36

D) 18

20Compliance Level for SCH Wellfield

(24.1 MGD)

(12 month running average = 22.85 mgd as of 7/31/07)

26

28

3032

ctio

n (

MG

D

12

14

16

n (M

GD

)Monthly Production SCH Wellfield

( 4. MG )

18

20

2224

lfie

ld P

rod

uc

6

8

10

12

W P

rodu

ctio

n

BUDW Delivery to

12

1416

18

SCH

Wel

l

2

4

6

BU

DW

12-Month Running Average from SCH Wellfield

BUDW Delivery to SCH Service Area

10

APRJU

L

OCT (WY 2

001)

JAN

APRJU

L

OCT (W

Y 2002)

JAN

APRJU

L

OCT (W

Y 2003)

JAN

APRJU

L

OCT (W

Y 2004)

JAN

APRJU

L

OCT (W

Y 2005)

JAN

APRJU

L

OCT (W

Y 2006)

JAN

APRJU

L

OCT (W

Y 2007)

JAN

APRJU

L

WY 2000 th h WY 2007 (T D t )

0

WY 2000 through WY 2007 (To Date)

Central Pasco & Hillsborough County Groundwater Levels as of July 2007

CROSS BAR RANCH WELLFIELD (1)

45

55

T

M S

L

Figure 71

2

25

35

W A

T E

R

L E

V E

L

i n

F E

E T

3

CYPRESS CREEK WELLFIELD (2)

15

1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

W

NRWd WY 07 ANNUAL REFERENCE POINT

CYPRESS BRIDGE WELLFIELD (3)

55

60

65

E L

i n

F E

E T

M

S L

55

60

65

L

i n

F E

E T

M

S L

40

45

50

1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

W A

T E

R

L E

V E

40

45

50

1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

W A

T E

R

L E

V E

L

TMR4d WY 07 ANNUAL REFERENCE POINT FL-5-5000 WY 07 ANNUAL REFERENCE POINT

N.W. Hillsborough & S. Pasco County Groundwater Levels as of July 2007

40

45

50

E E

T

M S

L

SECTION 21 WELLFIELD (4) Figure 8

5

6

25

30

35

W A

T E

R

L E

V E

L

i n

F E 5

4

SOUTH PASCO WELLFIELD (5)40 STARKEY WELLFIELD (6)

20

1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

J26Ad WY 07 ANNUAL REFERENCE POINT

60

30

35V

E L

i

n

F E

E T

M

S L

45

50

55

V E

L

i n

F

E E

T

M S

L

20

25

1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

W A

T E

R

L E

V

30

35

40

1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

W A

T E

R

L E

V

PZ4d WY 07 ANNUAL REFERENCE POINT SR54d WY 07 ANNUAL REFERENCE POINT

N.W. Hillsborough & N.E. Pinellas County Groundwater Levels as of July 2007

ELDRIDGE-WILDE WELLFIELD (7)

20

25

30

E T

M

S L

Figure 9

7

5

10

15

20

W A

T E

R

L E

V E

L

i n

F E

78

9

NORTHWEST HILLSBOROUGHWELLFIELD (9)COSME-ODESSA WELLFIELD (8)

0

1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

2N WY 07 ANNUAL REFERENCE POINT

35

50

20

25

30

V E

L

i n

F

E E

T

M S

L

40

45

50

E L

i

n

F E

E T

M

S L

10

15

20

1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

W A

T E

R

L E

V

25

30

35

1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

W A

T E

R

L E

V E

COS-3 WY 07 ANNUAL REFERENCE POINT RMP-18d WY 07 ANNUAL REFERENCE POINT

Eastern and South Central Hillsborough County Groundwater Levels as of July 2007

MORRIS BRIDGE WELLFIELD (10) Figure 10

1130

35

T

M S

L

10 11

1215

20

25

A T

E R

L

E V

E L

i n

F E

E T

SOUTH CENTRAL HILLSBOROUGH WELLFIELD (12)

70CONE RANCH (11)

10

1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

W A

MOB6d WY 07 ANNUAL REFERENCE POINT

95

40

50

60

70

E L

i

n

F E

E T

M

S L

85

90

E L

i n

F E

E T

M

S L

10

20

30

1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

W A

T E

R

L E

V E

75

80

1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

W A

T E

R

L E

V E

SCHM-5d WY 07 ANNUAL REFERENCE POINT T-1d WY 07 ANNUAL REFERENCE POINT

OROP Monitor Wells Deviation From Target Water Levels – June 2007

Figure 11

6/07

OROP Monitor Wells Deviation From Target Water Levels – July 2007

Figure 12

7/07

OROP Monitor Wells Change in Water Levels – June 2007

Figure 13

6/07

OROP Monitor Wells Change in Water Levels – July 2007

Figure 14

7/07

Regional Surface Water Discharge June 2007J

Hillsborough at Morris Bridge (1) Figure 15

11400

1600

1800

Actual Discharge (MGD)

Historical Average Di h (MGD)

June 2007

June 2006

Typical June

29.63 mgd

34.75 mgd

103.61 mgd

1

23

400

600

800

1000

1200

Dis

char

ge (

mgd

) Discharge (MGD)

*TBC at S-160 (2)Estimated Flow, Alafia at Bell

Shoals (3)

0

200

5/1/

04

7/1/

04

9/1/

0411

/1/0

4

1/1/

05

3/1/

05

5/1/

05

7/1/

05

9/1/

0511

/1/0

5

1/1/

063/

1/06

5/1/

06

7/1/

06

9/1/

0611

/1/0

6

1/1/

073/

1/07

5/1/

07

7/1/

07

1800June 200736.58 mgd Actual Discharge

1800

10.04 mgd June 2007

1000

1200

1400

1600

rge

(mg

d)

June 2006109.82 mgdTypical June220.38 mgd Historical Average

Discharge (MGD)


1000

1200

1400

1600

rge

(mg

d) Actual Discharge

(MGD)

Historical Average Discharge (MGD)

14.04 mgd

59.23 mgd

J

June 2006

Typical June

0

200

400

600

800D

isch

ar

0

200

400

600

800

Dis

char

g ( )

*Please note, TBC at S-160 flow is actual flow, plus production quantities.

0

5/1/

047/

1/04

9/1/

0411

/1/0

41/

1/05

3/1/

055/

1/05

7/1/

059/

1/05

11/1

/05

1/1/

063/

1/06

5/1/

067/

1/06

9/1/

0611

/1/0

61/

1/07

3/1/

075/

1/07

7/1/

07

0

5/1/

047/1

/049/1

/04

11/1

/04

1/1/0

53/1

/055/

1/05

7/1/05

9/1/

0511/

1/05

1/1/

063/1

/065/

1/06

7/1/06

9/1/

0611/

1/06

1/1/

073/1

/07

5/1/

077/1

/07

Regional Surface Water Discharge July 2007J y

Hillsborough at Morris Bridge (1) Figure 16

11400

1600

1800


Historical Average Di h (MGD)

July 2007 July 2006

Typical July

43.66 mgd

73.16 mgd

172.73 mgd

1

23

400

600

800

1000

1200

Dis

char

ge (

mgd

) Discharge (MGD)

*TBC at S-160 (2)Estimated Flow, Alafia at Bell

Shoals (3)1800

23.38 mgd July 2007

0

200

6/1/

04

8/1/

0410

/1/0

412

/1/0

4

2/1/

05

4/1/

05

6/1/

05

8/1/

0510

/1/0

512

/1/0

5

2/1/

06

4/1/

06

6/1/

06

8/1/

0610

/1/0

612

/1/0

6

2/1/

07

4/1/

07

6/1/

07

8/1/

07

1800July 200798.44 mgdJ l 2006

Actual Discharge

800

1000

1200

1400

1600

arg

e (m

gd

) Actual Discharge (MGD)

Historical Average Discharge (MGD)

21.27 mgd

70.48 mgd

July 2006

Typical July

800

1000

1200

1400

1600

arg

e (m

gd

)

July 2006282.66 mgdTypical July379.40 mgd Historical Average

Discharge (MGD)

(MGD)

0

200

400

600

800

Dis

cha

0

200

400

600

800

Dis

cha

*Please note, TBC at S-160 flow is actual flow, plus production quantities.

6/1/

04

8/1/0

410

/1/04

12/1/

04

2/1/

054/

1/05

6/1/0

5

8/1/

0510

/1/05

12/1

/05

2/1/

064/

1/06

6/1/

06

8/1/

0610

/1/06

12/1/

06

2/1/

074/

1/07

6/1/0

7

8/1/

07

6/1/

048/

1/04

10/1

/04

12/1

/04

2/1/

054/

1/05

6/1/

058/

1/05

10/1

/05

12/1

/05

2/1/

064/

1/06

6/1/

068/

1/06

10/1

/06

12/1

/06

2/1/

074/

1/07

6/1/

078/

1/07

Hydrographs For Selected Indicator Lakes – July 2007

Moon Lake (1) Figure 17

42

45

33

36

39

FT N

GVD

55Lake Calm (2)

30

1991

1992

1993

1994

1995

1996

1997

1998

1999

2000

2001

2002

2003

2004

2005

2006

2007

LAKE LEVEL Minimum Flood LevelNormal Year Elevation Drought Year LowANNUAL REFERENCE POINT King Lake East (3)

110

46

49

52

55

FT N

GVD

101

104

107FT

NG

VD

40

43

46

1991

1992

1993

1994

1995

1996

1997

1998

1999

2000

2001

2002

2003

2004

2005

2006

2007

F

LAKE LEVEL Minimum Flood Level

95

98

1991

1992

1993

1994

1995

1996

1997

1998

1999

2000

2001

2002

2003

2004

2005

2006

2007

LAKE LEVEL Mi i Fl d L lNormal Year Elevation Drought Year LowANNUAL REFERENCE POINT

LAKE LEVEL Minimum Flood LevelNormal Year Elevation Drought Year LowANNUAL REFERENCE POINT

*Drought Year Low is “Extreme Low Management Level” or Low Guidance Level (LGL), where established

*Normal Year Elevation is “Minimum Low Management Level” or Minimum Lake Level (MLL), where established

To view the Attachment of

Agenda Item C.17

Contact Tampa Bay Water

Records Department at

(727) 796-2355

Reservoir Monthly Storage, Withdrawal, and Cumulative Storage Volume

Figure 19

7

8

14

16July 31, 2007

2.40 Billion Gallons

5

6

ons

ons) 10

12

me

ons)

2.40 Billion Gallons

July, 2007

2

3

4

thly

Div

ersi

ons

of G

allo

4

6

8

orag

e Vo

lum

ons

of G

alloJuly, 2007

Influent 0.20 Billion GallonsEffluent 0.72 Billion Gallons

June, 2007Influent 0.00 Gallons

Effluent 1.24 Billion Gallons

1

0

1Mon

t(B

illio

2

0

2 Sto

(Bill

io

-2

-1

Apr-0

5M

ay-0

5Ju

n-05

Jul-0

5Aug

-05

Sep -

05Oct

-05

Nov-0

5Dec

-05

Jan-

06Fe

b-06

Mar

-06

Apr-0

6M

ay-0

6Ju

n-06

Jul-0

6Aug

-06

Sep -

06Oct

-06

Nov-0

6Dec

-06

Jan-

07Fe

b-07

Mar

-07

Apr-0

7M

ay-0

7Ju

n-07

Jul-0

7

-4

-2

M J A S N D F M M J A S N D F M M J

Month

2007). recommendation: receive status report. · • the consolidated permit wellfields 12-month...

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