Stormwater Management Division 4200 South John Young Parkway Orlando, Florida

Transcription

1 Stormwater Management Division 4200 South John Young Parkway Orlando, Florida

2 Disclaimer Orange County does not warrant, guarantee, or make any representations regarding the use, or the results of the use, of the information provided in terms of correctness, accuracy, or reliability. The entire risk as to the results and performance of any information obtained from Orange County is entirely assumed by the recipient.

3 Prepared by: Stormwater Management Division Rainfall Team Rodney J. Lynn, P.E., CFM, Manager Michael J. Drozeck, P.E., CFM, Chief Engineer Kelly Nowell, P.E., CFM, LEED-AP, Senior Engineer Grace L. Chua Corn, E.I., CFM, Engineer II Francis Fortunato, Engineering Technician IV Digital Rainfall Data can be obtained from: Orange County Stormwater Management Division 4200 S. John Young Parkway Orlando, Florida Contact: Francis Fortunato Phone: (407)

4 Table Of Contents Page No. EXECUTIVE SUMMARY Overview YEAR 2014 RECORDED RAINFALL STORM SUMMARY Storms by Rainfall Amount Storms by Duration Real-Time Rainfall Network DATA COLLECTION REAL-TIME RAINFALL NETWORK ARCHITECTURE Sensing Station LOCATION CRITERIA INSTALLATION PROCEDURE EQUIPMENT MAINTENANCE AND OPERATIONAL ROUTINE LOSS OF DATA FUTURE PLANS Gauge Summaries LAKE JENNIFER MICHAEL S DAM LAKE MAITLAND RIVERSIDE ACRES LAKE ORLANDO LAKE BEAUCLAIR LAKE APOPKA O.C. NATIONAL LAKE SHEEN SPRING LAKE SHINGLE CREEK BOGGY CREEK LAKE CONWAY LAKE HART Appendix A -Monthly Rainfall Reports Appendix B - Monthly Stage and Flow Reports Appendix C - Storm Summaries Appendix D - NOAA Historical Records for Orlando ( ) 2014 Annual Rainfall Report Page i

5 Table of Contents (Continued ) List of Figures Page No. Figure 1 - Orange County Rain Gauge Location Map... 3 Figure 2 - Orange County Real-Time Rainfall Network Architecture Figure 3 - Lake Jennifer Location Map Figure 4 - Michael's Dam Location Map Figure 5 - Lake Maitland Location Map Figure 6- Riverside Acres Location Map Figure 7 - Lake Orlando Location Map Figure 8 - Lake Beauclair Location Map Figure 9 - Lake Apopka Location Map Figure 10 - O.C. National Location Map Figure 11 - Lake Sheen Location Map Figure 12 - Spring Lake Location Map Figure 13 - Shingle Creek Location Map Figure 14 - Boggy Creek Location Map Figure 15 - Lake Conway Location Map Figure 16 - Lake Hart Location Map List of Graphs Page No. Graph 1 - Total Recorded Rainfall for Year I Graph 2 Total Recorded Rainfall for Years II Graph 3 - Total Recorded Rainfall for Year Graph 4 - Percentage of Storms by Rainfall Amount (2014)... 7 Graph 5 - Percentage of Storms by Storm Duration (2014)... 9 Graph 6 - County Average Recorded Rainfall & Departure from Normal Graph 7 - Lake Jennifer Recorded Rainfall & Departure from Normal Graph 8 - Michael's Dam Recorded Rainfall & Departure from Normal Graph 9 - Lake Maitland Recorded Rainfall & Departure from Normal Graph 10 - Riverside Acres Recorded Rainfall & Departure from Normal Graph 11 - Lake Orlando Recorded Rainfall & Departure from Normal Graph 12 - Lake Beauclair Recorded Rainfall & Departure from Normal Graph 13 - Lake Apopka Recorded Rainfall & Departure from Normal Graph 14 - O.C. National Recorded Rainfall & Departure from Normal Graph 15 - Lake Sheen Recorded Rainfall & Departure from Normal Graph 16 - Spring Lake Recorded Rainfall & Departure from Normal Graph 17 - Shingle Creek Recorded Rainfall & Departure from Normal Graph 18 - Boggy Creek Recorded Rainfall & Departure from Normal Graph 19 - Lake Conway Recorded Rainfall & Departure from Normal Graph 20 - Lake Hart Recorded Rainfall & Departure from Normal Annual Rainfall Report Page ii

6 Table of Contents (Continued ) List of Tables Page No. Table 1 - Sensing Station Description... 1 Table 2 - Monthly Recorded Rainfall Totals for Table 3 - Number of Storms by Rainfall Amount (2014)... 6 Table 4 - Number of Storms by Duration (2014)... 8 Table 5 - Sensors and Stations Used to Estimate Missing or Bad Data Periods... 1 List of Photographs Page No. Photograph 1 - Typical Equipment Set Up (Lake Maitland Station) Photograph 2 - Typical Equipment Layout within Stainless Steel Box Annual Rainfall Report Page iii

7 EXECUTIVE SUMMARY This report summarizes the rainfall data collected for Orange County during Relevant data from the National Oceanic and Atmospheric Administration (NOAA) collected at the Orlando International Airport (OIA) was used for comparison purposes. Orange County s rainfall network consists of fourteen sensing stations that are strategically located to maximize coverage of the County (See Figure 1). All information is transmitted from each field sensing station via radio telemetry or cellular to give a true real-time network. With this technology, it is possible to monitor the stations from the Stormwater Management Division office and address any problems as they occur. With the implementation of real-time rainfall data acquisition, the rainfall program has benefited from more accurate data, faster reporting, and more efficient data storage and analysis. The retrieved data are automatically stored in a database, making quality control and report preparation more efficient. This database is used to publish a monthly rainfall report summarizing daily totals of rainfall, average flow, and average stage elevation. At the end of each calendar year, the rainfall data are summarized in a yearly report (i.e., this report). The annual average rainfall recorded by the Stormwater Management Division s network of gauges was inches for For comparison, the 2014 total amount of rainfall recorded at OIA was inches. The normal rainfall based on OIA historical average between 1981 to 2010 is inches (see Graph 1). On the whole, rainfall for Orange County in 2014 was 6.95 inches above the normal rainfall of inches. Lake Maitland. Michael's Dam Lake Hart Spring Lake Riverside Acres Lake Jennifer Lake Sheen Boggy Creek Orange County Average O.C. National Lake Conway Lake Orlando O.I.A Shingle Creek Lake Apopka Lake Beauclair OIA Normal Rainfall 50.73" Recorded Rainfall (in.) Graph 1 - Total Recorded Rainfall for Year Annual Rainfall Report Page I

8 EXECUTIVE SUMMARY (CONTINUED) Yearly rainfall totals from all fourteen gauges for the last five years ( ) are shown on Graph 2. Orange County s rainfall average for the last five years was inches, which is 1.96 inches below the OIA yearly normal rainfall of inches. Lake Jennifer Michael's Dam Lake Maitland Riverside Acres Lake Orlando Lake Beauclair Lake Apopka O.C. National Lake Sheen Spring Lake Shingle Creek Boggy Creek Lake Conway Lake Hart Yearly County Average OIA OIA - Normal Last 5 Yrs. Rainfall (50.73) County Graph 2 Total Recorded Rainfall for Years Annual Rainfall Report Page II

9 1.0 Overview Orange County s rainfall monitoring program began in 1986 and has been operated and maintained by the Stormwater Management Division. The network has been improved throughout the years to its current real-time configuration. The rainfall monitoring program has benefited Orange County and its residents by having an accurate and reliable means of recording rainfall during natural emergencies (e.g., hurricanes). In addition, collected rainfall data has been successfully used to aid in hydrologic/hydraulic modeling for capital improvement projects undertaken by the Stormwater Management Division. Orange County is divided into a total of twelve (12) major drainage basins. The current network collects data in ten (10) of these basins (Big and Little Econlockhatchee Rivers, Howell Branch, Little Wekiva River, Shingle Creek, Boggy Creek, Lake Apopka, Cyress Creek, Lake Hart, and Reedy Creek basins). Refer to Figure 1 for the locations of the rain gauges in Orange County. Orange County currently operates a total of fourteen (14) sensing stations. All sensing stations collect rainfall data. With the exception of the Lake Apopka and Orange County National, all sites monitor stage levels. Refer to Table 1 for more detail. Table 1 - Sensing Station Description Station Name Lake Jennifer (Station #1) Michael s Dam (Station #2) Lake Maitland (Station # 3) Riverside Acres (Station # 4) Lake Orlando (Station # 5) Lake Beauclair (Station # 6) Lake Apopka (Station # 7) O.C. National (Station # 8) Lake Sheen (Station # 9) Spring Lake (Station # 10) Shingle Creek (Station # 11) Boggy Creek (Station # 12) Lake Conway (Station # 13) Lake Hart (Station # 14) Date Installed Date Upgraded* Type of Data Collected Stage and Rainfall Stage, Flow, Rainfall Stage, Flow, Rainfall Stage, Flow, Rainfall Drainage Big Econlockhatchee River Little Econlockhatchee River Howell Branch Little Wekiva River Location Lake Jennifer Jay Blanchard Park Horatio Avenue Riverside Acres Subdivision Stage and Rainfall Little Wekiva River Lake Orlando Drive Stage and Rainfall Lake Apopka Trimble Park Rainfall Lake Apopka Magnolia Park 2002 I/R Rainfall Reedy Creek O.C. National Golf Course 2002 I/R Stage and Rainfall Cypress Creek West Beach Park Stage, Flow, Rainfall Shingle Creek Sand Lake Road Stage and Rainfall Shingle Creek Conroy Road Stage and Rainfall Boggy Creek Wetherbee Road & Landstar Blvd Stage and Rainfall Boggy Creek Daetwyler Road Stage and Rainfall Lake Hart Moss Park *Note: Date Upgraded refers to the date the stations mode of communication was changed from telephone to radio communication/ to cellular communication. I/R = installed with radio Annual Rainfall Report Page 1

10 Stage levels recorded by gauges, where there is a control structure, are used to provide an estimate of discharge through these structures. Currently, four (4) sensing stations estimate discharge from recorded stage levels. These are Lake Maitland, Spring Lake, Riverside Acres, and Michael s Dam. Stage level data are presented in Appendix B along with the flow data for these stations Annual Rainfall Report Page 2

11 Figure 1 - Orange County Rain Gauge Location Map 2014 Annual Rainfall Report Page 3

12 1.1 Year 2014 Recorded Rainfall Graph 3 (below) presents the yearly rainfall totals at all the sensing stations. The historical average (1981 to 2010) for Orlando International Airport (OIA) is inches. In 2014, OIA recorded a total of inches of rainfall or 4.62 inches of rainfall above the historical yearly average. Historical rainfall records for Orlando (i.e. NOAA) are presented in Appendix D. The 2014 average rainfall amount recorded in Orange County by the Stormwater Management Division s network was inches. Please note that for total rainfall per station for year 2014 was the sum of all recorded rainfall from January 1 st to December 31 st, Lake Maitland. Michael's Dam Lake Hart Spring Lake Riverside Acres Lake Jennifer Lake Sheen Boggy Creek Orange County Average O.C. National Lake Conway Lake Orlando O.I.A Shingle Creek Lake Apopka Lake Beauclair OIA Normal Rainfall 50.73" Recorded Rainfall (in.) Graph 3 - Total Recorded Rainfall for Year 2014 Table 2 (next page) lists the monthly rainfall at each sensing station, the monthly rainfall totals at OIA, the Orange County average for 2014, and the historical yearly average at OIA. Values highlighted in blue represent months where adjustment for missing data was necessary. Nearby gauges from the City of Orlando, National Oceanic and Atmospheric Administration (NOAA), Orange County Parks & Recreation Division, and Orange County Stormwater Management Division were used to adjust the missing values. The specific sensor(s) used to supplement the Stormwater Management s data and the failure periods during the year are presented on Table 5 and on the monthly rainfall reports (see Appendix A) Annual Rainfall Report Page 4

13 Table 2 Monthly Recorded Rainfall Totals for Annual Rainfall Report Page 5

14 1.2 Storm Summary Storms by Rainfall Amount The recorded data were analyzed to determine the number of storms that occurred at each station during the year (see Table 3 and Graph 4). The storms were divided into four categories based on total rainfall amount. The categories are inch, inch, inches, and those storms producing greater than 2.00 inches of rainfall. For this analysis, a storm was defined as a rainfall event that does not have a gap or inter-event dry period of more than four continuous hours without rainfall 1. From the table, it can be seen that 91.3% of the storms recorded in 2014 have a total rainfall of 1 inch or less. This percentage is close to the estimated number of 90% for Central Florida 1. Please note that that the period of study was from January 1 st 2014 to December 31 st Table 3 Number of Storms by Rainfall Amount (2014) Station Nunber of Storms by Rainfall Amount Name Storms in % in % in % > 2.00 in % Lake Jennifer % % 9 4.7% 7 3.6% Michael's Dam % % % 2 1.0% Lake Maitland % % % 3 1.7% Riverside Acres % % % 3 1.7% Lake Orlando % % % 3 1.8% Lake Beauclair % % 6 3.9% 4 2.6% Lake Apopka % % 9 5.1% 2 1.1% O.C. National % % % 5 3.1% Lake Sheen % % % 2 1.2% Spring Lake % % % 4 2.6% Shingle Creek % % % 3 1.8% Boggy Creek % % % 2 1.1% Lake Conway % % % 3 1.8% Lake Hart % % % 3 1.6% Totals % Totals 51.0% 40.3% 6.8% 1.9% 1 Jacobson,T.H., Yousef, Y.A. and Wanielista, M., Rainfall Analysis for Efficient Retention Ponds Proc. ASCE Specialty Conference on Stormwater Management, June Annual Rainfall Report Page 6

15 % 100.0% 100% % 90% 80% % Number of Storms % 60% 50% 40% Percent Number of Storms Cummulative % % 20% % in in in > 2.00 in Rainfall Amount (in) 0% Graph 4 - Percentage of Storms by Rainfall Amount (2014) 2014 Annual Rainfall Report Page 7

16 1.2.2 Storms by Duration The recorded data was also analyzed to determine the number of storms based on storm duration (see Table 4 and Graph 5). The storms were divided into four categories. The categories are hour, hour, hours, and those storms with a duration greater than 6.00 hours. Refer to Appendix C for a complete listing of each storm with its beginning date and time, ending date and time, total rainfall, storm duration, average rate intensity, and peak rate intensity. Table 4 Number of Storms by Duration (2014) Station Number of Storms by Duration Name Storms hr % hr % hr % > 6.00 hr % Lake Jennifer % % % % Michael's Dam % % % % Lake Maitland % % % % Riverside Acres % % % % Lake Orlando % % % % Lake Beauclair % % % % Lake Apopka % % % % O.C. National % % % % Lake Sheen % % % % Spring Lake % % % % Shingle Creek % % % % Boggy Creek % % % % Lake Conway % % % % Lake Hart % % % % Totals % Totals 32.4% 15.3% 39.4% 12.9% 2014 Annual Rainfall Report Page 8

17 % 100% % % 80% % Number of Storms % 47.7% % 50% 40% 30% Percent Number of Storms Cummulative % % 10% hr hr hr > 6.00 hr Storm Duration (hr) 0% Graph 5 - Percentage of Storms by Storm Duration (2014) 2014 Annual Rainfall Report Page 9

18 2.0 Real-Time Rainfall Network 2.1 Data Collection The real-time rainfall network consists of fourteen (14) sensing stations. All stations collect rainfall data. With the exception of the Lake Apopka and Orange County National sites, all sites also monitor stage levels. The Campbell Scientific, Inc. data logging equipment is programmed to record and store data every five minutes. At the end of each day, the recording equipment also logs a daily summary of the total rainfall and average stage. 2.2 Real-Time Rainfall Network Architecture Data retrieval is an automated process. A depiction of the Orange County rainfall network architecture is shown in Figure 2. The figure shows the flow path of the data from the field to vendor Locher Environmental s server to the Vista Data Vision web site and to the Orange County server. Field data for Lake Orlando, Riverside Acres, O.C. National, Lake Sheen, Shingle Creek, and Boggy Creek are currently sent via radio frequency (RF) to the antenna located at Orange County Public Works (step 1A). Field data for Lake Beauclair, Lake Apopka, Lake Conway, Lake Hart, Lake Jennifer, Lake Maitland, Michael s Dam, and Spring Lake are sent directly to the Locher Environmental and Orange County server (step 1B) by cellular. The data sent by RF is first transferred to the NL 200 Base Station at Public Works (step 2) and then sent via the internet to the Locher Environmental server (step 3). The data is then stored and sent to the Vista Data Vision website (step 4) where the data can be viewed on any client s computer through a web browser. The rainfall data is backed-up on the Orange County server (step 5). The Stormwater Loggernet Administrator also connects to the Locher Environmental server for maintaining and checking the rainfall data (step 6). The Stormwater Loggernet Administrator uses supporting software to decode the data into appropriate engineering units. This enhances quality control and streamlines report preparation. The loggernet software also provides the rainfall data used to publish a monthly rainfall report that summarizes daily totals of rainfall, average flow, and average stage elevation. At the end of each calendar year, the data is summarized in a yearly rainfall report (i.e., this report) Annual Rainfall Report Page 10

19 Sensing Station Field Data Radio 1A Public Works Antenna 1B Cellular 2 3 Locher Environmental Server 5 Orange County Server Public Works NL 200 Base Station 6 4 Stormwater Loggernet Administrator Vista Data Vision Website Client Figure 2 - Orange County Real-Time Rainfall Network Architecture 2014 Annual Rainfall Report Page 11

20 3.0 Sensing Station 3.1 Location Criteria The locations of the current sensing stations were chosen by considering the following factors: Coverage of Orange County provided by the station Ease of access to the station Susceptibility to vandalism Ease of equipment calibration 3.2 Installation Procedure New sites are meticulously researched to maximize the coverage provided by the limited number of sensing stations. This ensures that the major drainage basins within Orange County are adequately covered with real-time data collection. Once the site is selected, a survey crew establishes a benchmark close to the sensing station. This benchmark is used to manually check the stage elevations recorded at the station. All instruments and sensors are then installed and linked to the network. All sensitive electronics are housed within a stainless steel enclosure. The final step is to calibrate the digital recorders to begin data collection. Some of the materials used in the construction of a sensing station include a 4 x 4 pressure treated wooden post, steel post, PVC pipes, electric wires, ground rod, galvanized deck screws, bolts, nuts, and nails. 3.3 Equipment All fourteen (14) sensing stations are outfitted with Campbell Scientific, Inc. equipment. Photograph 1 shows a typical sensing station layout. Photograph 2 presents the equipment layout within the stainless steel enclosure. Below is a list of the major pieces of equipment found at the sensing stations: The Campbell Scientific, Inc. CR1000 Measurement and Control Module combines a microcomputer, clock, multimeter, calibrator, scanner, timer, frequency counter, and controller in a compact, sealed, stainless steel package. It comes with sixteen (16) analog input channels; three (3) switched excitation channels; two (2) 5-Volt excitation channels; two (2) pulse counting channels; eight (8) digital input/output channels; power and ground connections; and a 9-pin serial I/O port for connection to data storage, retrieval, and telecommunications peripherals, such as a CR1000 keyboard or a PC. The CR1000 receives electric signals from the sensors, converts them into raw data, and stores them. The CR1000 is the latest Campbell Scientific datalogger available and was installed in all of our rainfall stations last year. Hydrological Services TB-3 Tipping Buckets are utilized to measure rainfall. Rain is funneled through an orifice into a tipping bucket. When the bucket receives a volume of rainfall equal to 0.01 inches times the surface area of the tipping bucket, it tips, sending an electrical signal to be recorded in the CR Annual Rainfall Report Page 12

21 Pressure Systems KPSI 700 Pressure Transducers are being used to measure the water level at our stations. The pressure transducer measures the pressure of the surrounding water and converts it to a corresponding elevation. One Werker 12-volt Gel Type Battery is used to power the Campbell Scientific, Inc. CR1000, RF500M modem, and Midland SD225V2 radio. Bp Solar SX20U 20-Watt Solar Panel is used at each sensing station to provide continuous trickle charge to the 12-volt battery. A Voltage Regulator is used at each station. Since the solar panel voltage varies depending on sunlight conditions, it becomes necessary to reduce the excess power to protect the equipment. The RF stations use the Campbell Scientific, Inc. RF500M Modems and Midland SD 225V2 radios for data transfer and rainfall network communication while the cellular stations use the Sierra Raven XT modems. The RF Stations will be upgraded with Sierra Raven XT modems in DB230 Decibel Yagi Antenna is used to transmit the RF radio signal to a repeater station or base antenna. The Phantom wideband antenna is used for the cellular stations. The Rf Stations will be upgraded with the Phantom wideband antenna in BP SX20U 20 Watt Solar Panel TB-3 Tipping Bucket DB 230-Decibel Yagi Antenna Steel Pipe Stainless Steel Enclosure KPSI700 Transducer Photograph 1 - Typical Equipment Set Up (Lake Maitland Station) 2014 Annual Rainfall Report Page 13

22 CR1000 datalogger RF 500M modem SD225V2 radio 12 volt recharger/regulator 12 volt lead battery Photograph 2 - Typical Equipment Layout within Stainless Steel Box 3.4 Maintenance and Operational Routine Every three (3) months, all stations are visually inspected to ensure that all equipment is working properly. Enclosures are cleaned, dust and bugs are removed from the boxes, cable connections are inspected and/or fixed as necessary, and tipping buckets are inspected and cleaned. To ensure accurate rainfall readings, all rain gauges are calibrated every six (6) months using the Hydrological Services P/L Field Calibration Device Model FCD. Calibration adjustments are performed in the field unless repair by the manufacturer is needed. All data collected undergoes a quality control and quality assurance check. Stage elevations are field verified quarterly. Rainfall amounts recorded are compared to information provided by other agencies (City of Orlando, Orange County Parks and Recreation, and NOAA). Flow values reported by the gauges are compared to values obtained from spreadsheet programs. The station clock is also checked to ensure the station is logging the correct time. 3.5 Loss of Data During the course of a year, some data loss is unavoidable. Some of the causes for data loss are listed below: Natural Phenomenon: The equipment is manufactured, set-up and maintained to minimize the effects of lightning, high wind speed, flooding, heat and humidity Annual Rainfall Report Page 14

23 However, damage due to these factors is still a possibility, especially during extreme weather events such as hurricanes and tornadoes. Pests: The interior of the stainless steel enclosure can become an environment for insects, frogs, and snakes. Birds often perch on and leave their droppings on the rain gauges. Spiders weave webs that can affect the mechanical tipping bucket. Vandalism: Although many of the sensing stations are located within fenced areas and care is taken in selecting a secure site, they still fall victim to vandals. Most occurrences of vandalism result in damaged or stolen solar panels, destruction of tipping buckets, and damaged cables and locks. The sensing stations are occasionally used for target practice. Vegetation and Debris: The KPSI 700 pressure transducer could record erroneous data if vegetation, debris, or silt build-up, surround, or penetrate the PVC casing. 3.6 Future Plans We are checking into the feasibility of making our data publicly available through the internet. This would help facilitate the distribution of the data and reduce our work efforts on data requests. We are also coordinating with our EPD division to look into the feasibility of moving some of our gaging stations so that they can add water quality probes to collect water quality data at critical areas of the County. In conjunction with this effort, we will also consider the expansion of our rainfall network with the inclusion of the water quality probes and possibly stream flow gauges in our riverine watersheds Annual Rainfall Report Page 15

24 4.0 Gauge Summaries This section of the report provides a summary of the rainfall recorded at each of the fourteen (14) sensing stations that were in operation during the year The fourteen (14) stations presented are: Lake Jennifer, Michael s Dam, Lake Maitland, Riverside Acres, Lake Orlando, Lake Beauclair, Lake Apopka, O.C. National, Lake Sheen, Spring Lake, Shingle Creek, Boggy Creek, Lake Conway, and Lake Hart. The following pages show a monthly comparison of recorded rainfall vs. normal rainfall (OIA historical average between 1981 and 2010 for each station. Additionally, a cumulative deviation from the OIA monthly average has been calculated and included on the graph for comparison. This deviation is presented as a solid black line. It represents the total cumulative monthly difference between recorded rainfall and expected rainfall. A negative number represents a deficit of rainfall and a positive number represents a surplus of rainfall compared to expected values. Graph 6 (below) shows the average recorded rainfall for all stations maintained by Orange County Stormwater Management. The graph indicates that the individual months of January, February, March, April, May July, September, and November were above normal. On the whole, the annual average rainfall in Orange County in 2014 was 6.95 inches above the yearly normal rainfall of inches at OIA O.I.A. - Normal Rainfall 2014 County Average Cumulative Deviation 8.38 Recorded Rainfall (Inches) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Graph 6 - County Average Recorded Rainfall & Departure from Normal 2014 Annual Rainfall Report Page 16

25 4.1 Lake Jennifer Station Information Installation Date Oct-11 Equipment Campbell CR-1000 Type of Collection Rainfall + Canal Stage Location East of Dallas Av between Oberly Pkwy and Paddock St. West of Lake Jennifer. Drainage Big Econlockhatchee Section Township Range 14-23S-32E Commissioner District 5 Map Legend Designation Description 1 Lake Jennifer 2 Michael's Dam 3 Lake Maitland 4 Riverside Acres 5 Lake Orlando 6 Lake Beauclair 7 Lake Apopka 8 O.C. National 9 Lake Sheen 10 Spring Lake 11 Shingle Creek 12 Boggy Creek 13 Lake Conway 14 Lake Hart A* Public Works Building* B* Emergency Operations Center* C* Sand Lake Repeater Station* * These represent repeater stations and no data is collected at these locations Lake Jennifer STA. 6 Big Wekiva River Drainage N Not To Scale Lake Apopka Drainage STA. 7 STA. 5 STA. 4 Little Wekiva River Drainage Howell Branch Drainage STA. 3 STA. B STA. 2 STA. 8 Cypress Creek Drainage STA. 10 STA. 11 STA. A STA. C STA. 13 Little Econlockhatchee River Drainage Big Econlockhatchee River Drainage STA.1 St. Johns River Drainage STA. 9 Lake Hart Drainage Reedy Creek Drainage Shingle Creek Drainage STA. 12 Boggy Creek Drainage STA. 14 Figure 3 - Lake Jennifer Location Map 2014 Annual Rainfall Report Page 17

26 OIA - Normal Rainfall Lake Jennifer Cumulative Deviation Recorded Rainfall (Inches) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Graph 7 - Lake Jennifer Recorded Rainfall & Departure from Normal As indicated on Graph 7 above, the months of January, March, April, June, July, August, September, and November were above the normal rainfall with the remaining months below. The resulting rainfall total for the year was inches, which is 9.06 inches above the normal rainfall of inches at OIA. The Lake Jennifer station recorded a total of 193 storm events, of which approximately 92% produced less than or equal to 1.0 inch of rainfall. Only seven (7) storm events produced more than 2.0 inches of rainfall. During 2014, the longest rain event recorded lasted hours. The highest recorded rainfall amount for a single storm event was 2.10 inches. The maximum average intensity during a single storm event was 3.51 inches per hour. A complete summary of storm data for Lake Jennifer can be found in Appendix C Annual Rainfall Report Page 18

27 4.2 Michael s Dam Station Information Installation Date Jul-86 Equipment Campbell CR-1000 Type of Collection Rainfall + Canal Stage Location In Blanchard Park East of Dean Rd. North of S.R. 50 on Michael's Dam Drainage Little Econlockhatchee Section Township Range 17-22S-31E Commissioner District 5 Map Legend Designation Description 1 Lake Jennifer 2 Michael's Dam 3 Lake Maitland 4 Riverside Acres 5 Lake Orlando 6 Lake Beauclair 7 Lake Apopka 8 O.C. National 9 Lake Sheen 10 Spring Lake 11 Shingle Creek 12 Boggy Creek 13 Lake Conway 14 Lake Hart A* Public Works Building* B* Emergency Operations Center* C* Sand Lake Repeater Station* * These represent repeater stations and no data is collected at these locations Michael s Dam STA. 6 Boggy Creek Big Wekiva River Drainage N Not To Scale Lake Apopka Drainage STA. 7 STA. 5 STA. 4 Little Wekiva River Drainage Howell Branch Drainage STA. 3 STA. B STA. 2 STA. 8 Cypress Creek Drainage STA. 11 STA. A STA. 10 STA. C STA. 13 Little Econlockhatchee River Drainage STA. 1 Big Econlockhatchee River Drainage St. Johns River Drainage Reedy Creek Drainage STA. 9 Shingle Creek Drainage STA. 12 Boggy Creek Drainage Lake Hart Drainage STA. 14 Figure 4 - Michael's Dam Location Map 2014 Annual Rainfall Report Page 19

28 14.0 O.I.A. - Normal Rainfall 12.0 Michael's Dam Cumulative Deviation Recorded Rainfall (Inches) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 0.21 Graph 8 - Michael's Dam Recorded Rainfall & Departure from Normal As indicated on Graph 8 above, the months of January, April, May, June, July, August, September, and November were above the normal rainfall with the remaining months below. The resulting rainfall total for the year was inches, which is inches above the normal rainfall of inches at OIA. The Michael s Dam station recorded a total of 199 storm events, of which approximately 93% produced less than or equal to 1.0 inch of rainfall. Only two (2) storm events produced more than 2.0 inches of rainfall. During 2014, the longest rain event recorded lasted hours. This same event produced the highest recorded rainfall amount of 5.39 inches. The maximum average intensity during a single storm event was 2.19 inches per hour. A complete summary of storm data for Michael s Dam can be found in Appendix C Annual Rainfall Report Page 20

29 4.3 Lake Maitland Station Information Installation Date Feb-87 Equipment Campbell CR-1000 Type of Collection Rainfall + Lake Stage Location South side of Horatio Ave West of Temple Dr. On canal bridge Drainage Howell Branch Section Township Range 32-21S-30E Commissioner District 5 Map Legend Designation Description 1 Lake Jennifer 2 Michael's Dam 3 Lake Maitland 4 Riverside Acres 5 Lake Orlando 6 Lake Beauclair 7 Lake Apopka 8 O.C. National 9 Lake Sheen 10 Spring Lake 11 Shingle Creek 12 Boggy Creek 13 Lake Conway 14 Lake Hart A* Public Works Building* B* Emergency Operations Center* C* Sand Lake Repeater Station* * These represent repeater stations and no data is collected at these locations Lake Maitland STA. 6 Big Wekiva River Drainage N Not To Scale Lake Apopka Drainage STA. 7 STA. 5 STA. 4 Little Wekiva River Drainage Howell Branch Drainage STA. 3 STA. B STA. 2 STA. 8 Cypress Creek Drainage STA. 11 STA. A STA. 10 STA. C STA. 13 Little Econlockhatchee River Drainage Big Econlockhatchee River Drainage STA. 1 St. Johns River Drainage Reedy Creek Drainage STA. 9 Shingle Creek Drainage STA. 12 Boggy Creek Drainage Lake Hart Drainage STA. 14 Figure 5 - Lake Maitland Location Map 2014 Annual Rainfall Report Page 21

30 16.0 O.I.A. - Normal Rainfall 14.0 Lake Maitland Cumulative Deviation Recorded Rainfall (Inches) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Graph 9 - Lake Maitland Recorded Rainfall & Departure from Normal As indicated on Graph 9 above, the months of January, February, April, May, June, July, September, and November were above the normal rainfall with the remaining months below. The total rainfall recorded at this station for the year was inches, which is inches above the normal rainfall value of inches at OIA. The Lake Maitland station recorded a total of 175 storm events, of which approximately 90% produced less than or equal to 1.0 inch of rainfall. Only three (3) storm events produced more than 2.0 inches of rainfall. During 2014, the longest rain event recorded lasted hours. The highest recorded rainfall amount for a single storm event was 4.91 inches. The maximum average intensity during a single storm event was 2.89 inches per hour. A complete summary of storm data for Lake Maitland can be found in Appendix C Annual Rainfall Report Page 22

31 4.4 Riverside Acres Station Information Installation Date Sep-89 Equipment Campbell CR-1000 Type of Collection Rainfall + Canal Stage Location South of Pembrook Dr., West of Forest City Rd. On Little Wekiva River Drainage Little Wekiva Section Township Range 28-21S-29E Commissioner District 2 Map Legend Designation Description 1 Lake Jennifer 2 Michael's Dam 3 Lake Maitland 4 Riverside Acres 5 Lake Orlando 6 Lake Beauclair 7 Lake Apopka 8 O.C. National 9 Lake Sheen 10 Spring Lake 11 Shingle Creek 12 Boggy Creek 13 Lake Conway 14 Lake Hart A* Public Works Building* B* Emergency Operations Center* C* Sand Lake Repeater Station* * These represent repeater stations and no data is collected at these locations Riverside Acres STA. 6 Big Wekiva River Drainage N Not To Scale Lake Apopka Drainage STA. 7 STA. 5 STA. 4 Little Wekiva River Drainage Howell Branch Drainage STA. 3 STA. B STA. 2 STA. 8 Cypress Creek Drainage STA. 11 STA. A STA. 10 STA. C STA. 13 Little Econlockhatchee River Drainage Big Econlockhatchee River Drainage STA. 1 St. Johns River Drainage Reedy Creek Drainage STA. 9 Shingle Creek Drainage STA. 12 Boggy Creek Drainage Lake Hart Drainage STA. 14 Figure 6- Riverside Acres Location Map 2014 Annual Rainfall Report Page 23

32 O.I.A. - Normal Rainfall Riverside Acres Cumulative Deviation Recorded Rainfall (Inches) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Graph 10 - Riverside Acres Recorded Rainfall & Departure from Normal As indicated on Graph 10 above, the months of January, February, April, May, June, July, September, and November were above the normal rainfall with the remaining months below. The total recorded rainfall for the year was inches, which is 9.40 inches above the normal rainfall of inches at OIA. The Riverside Acres station recorded a total of 175 storm events, of which 90% produced less than or equal to 1.0 inch of rainfall. There were three (3) storm events that produced more than 2.0 inches of rainfall. During 2014, the longest rain event recorded lasted hours. This coincided with the highest recorded rainfall amount for a single storm event was 4.44 inches. The maximum average intensity during a single storm event was 2.51 inches per hour. A complete summary of storm data for Riverside Acres can be found in Appendix C Annual Rainfall Report Page 24

33 4.5 Lake Orlando Station Information Installation Date Dec-89 Equipment Campbell CR-1000 Type of Collection Rainfall + Lake Stage Location East of Lake Orlando Pkwy at the East end of North Lane on Lake Orlando Drainage Little Wekiva Section Township Range E Commissioner District 2 Map Legend Designation Description 1 Lake Jennifer 2 Michael's Dam 3 Lake Maitland 4 Riverside Acres 5 Lake Orlando 6 Lake Beauclair 7 Lake Apopka 8 O.C. National 9 Lake Sheen 10 Spring Lake 11 Shingle Creek 12 Boggy Creek 13 Lake Conway 14 Lake Hart A* Public Works Building* B* Emergency Operations Center* C* Sand Lake Repeater Station* * These represent repeater stations and no data is collected at these locations STA. 6 Big Wekiva River Drainage N Lake Orlando Boggy Creek Lake Apopka Drainage STA. 7 STA. 5 STA. 4 Little Wekiva River Drainage Howell Branch Drainage STA. 3 Not To Scale STA. B STA. 2 STA. 8 Cypress Creek Drainage STA. 11 STA. A STA. 10 STA. C STA. 13 Little Econlockhatchee River Drainage Big Econlockhatchee River Drainage STA. 1 St. Johns River Drainage Reedy Creek Drainage STA. 9 Shingle Creek Drainage STA. 12 Boggy Creek Drainage Lake Hart Drainage STA. 14 Figure 7 - Lake Orlando Location Map 2014 Annual Rainfall Report Page 25

34 O.I.A. - Normal Rainfall Lake Orlando Cumulative Deviation Recorded Rainfall (Inches) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Graph 11 - Lake Orlando Recorded Rainfall & Departure from Normal As indicated on Graph 11 above, the months of January, April, May, September and November were above the normal rainfall with the remaining months below. The resulting rainfall total for the year was inches, which is 4.63 inches above the normal rainfall of inches at OIA. The Lake Orlando station recorded a total of 169 storm events, of which approximately 91% produced less than or equal to 1.0 inch of rainfall. There were three (3) storm events that produced more than 2.0 inches of rainfall. During 2014, the longest rain event recorded lasted hours. The highest recorded rainfall amount for a single storm event was 5.71 inches. The maximum average intensity during a single storm event was 2.12 inches per hour. A complete summary of storm data for Lake Orlando can be found in Appendix C Annual Rainfall Report Page 26

35 4.6 Lake Beauclair Station Information Installation Date Sep-95 Equipment Campbell CR-1000 Type of Collection Rainfall + Lake Stage Location Trimble Park Road On dock in Trimble Park Drainage Lake Apopka Section Township Range 7-20S-27E Commissioner District 2 Map Legend Designation Description 1 Lake Jennifer 2 Michael's Dam 3 Lake Maitland 4 Riverside Acres 5 Lake Orlando 6 Lake Beauclair 7 Lake Apopka 8 O.C. National 9 Lake Sheen 10 Spring Lake 11 Shingle Creek 12 Boggy Creek 13 Lake Conway 14 Lake Hart A* Public Works Building* B* Emergency Operations Center* C* Sand Lake Repeater Station* * These represent repeater stations and no data is collected at these locations STA. 6 Lake Beauclaire Big Wekiva River Drainage N Lake Beauclair Not To Scale Lake Apopka Drainage STA. 7 STA. 5 Little Wekiva River Drainage STA. 4 Howell Branch Drainage STA. 3 STA. B STA. 2 Lake Carlton STA. 8 Cypress Creek Drainage STA. 10 STA. 11 STA. A STA. C STA. 13 Little Econlockhatchee River Drainage Big Econlockhatchee River Drainage STA. 1 St. Johns River Drainage STA. 9 Lake Hart Drainage Reedy Creek Drainage Shingle Creek Drainage STA. 12 Boggy Creek Drainage STA. 14 Figure 8 - Lake Beauclair Location Map 2014 Annual Rainfall Report Page 27

36 10.0 O.I.A. - Normal Rainfall 8.0 Lake Beauclair Cumulative Deviation Recorded Rainfall (Inches) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Graph 12 - Lake Beauclair Recorded Rainfall & Departure from Normal As indicated on Graph 12 above, the months of January, February, March, April, September, and November were above the normal rainfall with the remaining months below. The resulting rainfall total for the year was inches, which is 0.96 inches below the normal rainfall of inches at OIA. The Lake Beauclair station recorded a total of 153 storm events, of which approximately 93% produced less than or equal to 1.0 inch of rainfall. Only four (4) storm events produced more than 2.0 inches of rainfall. During 2014, the longest rain event recorded lasted hours, coinciding with the highest recorded rainfall amount for a single storm event of 5.26 inches. The maximum average intensity during a single storm event was 2.47 inches per hour. A complete summary of storm data for Lake Beauclair can be found in Appendix C Annual Rainfall Report Page 28

37 4.7 Lake Apopka Station Information Installation Date May-02 Equipment Campbell CR-1000 Type of Collection Rainfall Location In Magnolia Park on east side of Lake Apopka off of Binion Rd. Drainage Lake Apopka Section Township Range 30-21S-28E Commissioner District 2 Map Legend Designation Description 11 Lake Hal Scott Jennifer 22 Michael's Michael's Dam Dam 3 3 Lake Lake Maitland Maitland 4 4 Riverside Riverside Acres Acres 5 5 Lake Lake Orlando Orlando 6 6 Lake Lake Beauclair Beauclair 7 7 Lake Lake Apopka Apopka 8 8 O.C. O.C. National National 9 9 Lake Lake Sheen Sheen Spring Lake Spring Lake Shingle Creek Shingle Creek Boggy Creek Boggy Creek Lake Conway Lake Conway Lake Hart Lake Hart A* Public Works Building* A* Public Works Building* B* Emergency Operations Center* B* Emergency Operations Center* C* Sand Lake Repeater Station* C* Sand Lake Repeater Station* D* Apopka Repeater Station* * * These These represent represent repeater repeater stations stations and and no no data is collected at these locations data is collected at these locations Lake Apopka STA. 6 Big Wekiva River Drainage N Lake Apopka Not To Scale Lake Apopka Drainage STA. 7 STA. 5 STA. 4 Little Wekiva River Drainage Howell Branch Drainage STA. 3 STA. B STA. 2 STA. 8 Cypress Creek Drainage STA. 11 STA. A STA. 10 STA. C STA. 13 Little Econlockhatchee River Drainage Big Econlockhatchee River Drainage STA. 1A St. Johns River Drainage Reedy Creek Drainage STA. 9 Shingle Creek Drainage STA. 12 Boggy Creek Drainage Lake Hart Drainage STA. 14 Figure 9 - Lake Apopka Location Map 2014 Annual Rainfall Report Page 29

38 12.0 O.I.A. - Normal Rainfall 10.0 Lake Apopka Cumulative Deviation Recorded Rainfall (Inches) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Graph 13 - Lake Apopka Recorded Rainfall & Departure from Normal As indicated on Graph 13 above, the months of January, February, April, May, June, September, and November were above the normal rainfall with the remaining months below. The total rainfall recorded was inches, which is 2.11 inches above the normal rainfall of at OIA. The Lake Apopka station recorded a total of 178 storm events, of which approximately 94% produced less than or equal to 1.0 inch of rainfall. There were two (2) storm events that produced more than 2.0 inches of rainfall. During 2014, the longest rain event recorded lasted hours, coinciding with the highest recorded rainfall amount for a single storm event of 4.03 inches. The maximum average intensity during a single storm event was 1.71 inches per hour. A complete summary of storm data for Lake Apopka can be found in Appendix C Annual Rainfall Report Page 30

39 4.8 O.C. National Station Information Installation Date May-02 Equipment Campbell CR-1000 Type of Collection Rainfall Location O.C. National Golf Course Drainage Reedy Creek Section Township Range 32-23S-27E Commissioner District 1 Map Legend Designation Description 1 Lake Jennifer 2 Michael's Dam 3 Lake Maitland 4 Riverside Acres 5 Lake Orlando 6 Lake Beauclair 7 Lake Apopka 8 O.C. National 9 Lake Sheen 10 Spring Lake 11 Shingle Creek 12 Boggy Creek 13 Lake Conway 14 Lake Hart A* Public Works Building* B* Emergency Operations Center* C* Sand Lake Repeater Station* * These represent repeater stations and no data is collected at these locations STA. 6 Big Wekiva River Drainage O.C. National N Lake Apopka Drainage STA. 7 STA. 5 STA. 4 Little Wekiva River Drainage Howell Branch Drainage STA. 3 Not To Scale STA. B STA. 2 STA. 8 Cypress Creek Drainage STA. 11 STA. A STA. 10 STA. C STA. 13 Little Econlockhatchee River Drainage Big Econlockhatchee River Drainage STA. 1 St. Johns River Drainage Reedy Creek Drainage STA. 9 Shingle Creek Drainage STA. 12 Boggy Creek Drainage Lake Hart Drainage STA. 14 Figure 10 - O.C. National Location Map 2014 Annual Rainfall Report Page 31

40 O.I.A. - Normal Rainfall O.C. National Cumulative Deviation Recorded Rainfall (Inches) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Graph 14 - O.C. National Recorded Rainfall & Departure from Normal As indicated on Graph 14 above, the months of February, March, April, September, November, and December were above the normal rainfall with the remaining months were below. This station recorded a total rainfall of inches of rainfall, which is 5.80 inches above the normal rainfall of inches at OIA. The O.C. National station recorded a total of 162 storm events, of which approximately 90% produced less than or equal to 1.0 inch of rainfall. Only five (5) storm events produced more than 2.0 inches of rainfall. During 2014, the longest rain event recorded lasted hours. The highest recorded rainfall amount for a single storm event was 5.36 inches. The maximum average intensity during a single storm event was 2.17 inches per hour. A complete summary of storm data for O.C. National can be found in Appendix C Annual Rainfall Report Page 32

41 4.9 Lake Sheen Station Information Installation Date May-02 Equipment Campbell CR-1000 Type of Collection Rainfall + Lake Stage Location In West Beach Park on West side of Lake Sheen Drainage Cypress Creek Section Township Range 5-24S-28E Commissioner District 1 Map Legend Designation Description 1 Lake Jennifer 2 Michael's Dam 3 Lake Maitland 4 Riverside Acres 5 Lake Orlando 6 Lake Beauclair 7 Lake Apopka 8 O.C. National 9 Lake Sheen 10 Spring Lake 11 Shingle Creek 12 Boggy Creek 13 Lake Conway 14 Lake Hart A* Public Works Building* B* Emergency Operations Center* C* Sand Lake Repeater Station* * These represent repeater stations and no data is collected at these locations STA. 6 Big Wekiva River Drainage N Lake Sheen Lake Sheen Not To Scale Lake Apopka Drainage STA. 7 STA. 5 STA. 4 Little Wekiva River Drainage Howell Branch Drainage STA. 3 STA. B STA. 2 STA. 8 Cypress Creek Drainage STA. 11 STA. A STA. 10 STA. C STA. 13 Little Econlockhatchee River Drainage Big Econlockhatchee River Drainage STA. 1 St. Johns River Drainage Reedy Creek Drainage STA. 9 Shingle Creek Drainage STA. 12 Boggy Creek Drainage Lake Hart Drainage STA. 14 Figure 11 - Lake Sheen Location Map 2014 Annual Rainfall Report Page 33

42 O.I.A. - Normal Rainfall Lake Sheen Cumulative Deviation Recorded Rainfall (Inches) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Graph 15 - Lake Sheen Recorded Rainfall & Departure from Normal As indicated on Graph 15 above, the months of January, February, March, April, July, September, and November were above the normal rainfall with the remaining months below. The recorded rainfall total for this station was inches, which is 7.49 inches above the normal rainfall of inches at OIA The Lake Sheen station recorded a total of 162 storm events, of which approximately 90% produced less than or equal to 1.0 inch of rainfall. Only two (2) storm events produced more than 2.0 inches of rainfall. During 2014, the longest rain event recorded lasted hours, coinciding with the highest recorded rainfall amount for a single storm event of 6.58 inches. The maximum average intensity during a single storm event was 2.32 inches per hour. A complete summary of storm data for Lake Sheen can be found in Appendix C Annual Rainfall Report Page 34

43 4.10 Spring Lake Station Information Installation Date Nov-89 Equipment Campbell CR-1000 Type of Collection Rainfall + LAKE Stage Location North of Sand Lake Road East of Dr. Phillips Blvd. Within O.C. Treatment Pla Drainage Shingle Creek Section Township Range 26-23S-28E Commissioner District 1 Map Legend Designation Description 1 Lake Jennifer 2 Michael's Dam 3 Lake Maitland 4 Riverside Acres 5 Lake Orlando 6 Lake Beauclair 7 Lake Apopka 8 O.C. National 9 Lake Sheen 10 Spring Lake 11 Shingle Creek 12 Boggy Creek 13 Lake Conway 14 Lake Hart A* Public Works Building* B* Emergency Operations Center* C* Sand Lake Repeater Station* * These represent repeater stations and no data is collected at these locations STA. 6 Big Wekiva River Drainage N Spring Lake Not To Scale Lake Apopka Drainage STA. 7 STA. 5 STA. 4 Little Wekiva River Drainage Howell Branch Drainage STA. 3 STA. B STA. 2 STA. 8 Cypress Creek Drainage STA. 11 STA. A STA. 10 STA. C STA. 13 Little Econlockhatchee River Drainage STA. 1 Big Econlockhatchee River Drainage St. Johns River Drainage Reedy Creek Drainage STA. 9 Shingle Creek Drainage STA. 12 Boggy Creek Drainage Lake Hart Drainage STA.14 Figure 12 - Spring Lake Location Map 2014 Annual Rainfall Report Page 35

44 14.0 O.I.A. - Normal Rainfall 12.0 Spring Lake Cumulative Deviation Recorded Rainfall (Inches) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -2.0 Graph 16 - Spring Lake Recorded Rainfall & Departure from Normal As indicated on Graph 16 above, the months of January, February, April, July, September, and November were above the normal rainfall with the remaining months below. The resulting rainfall total for the year was inches, which is 9.54 inches above the normal rainfall of inches at OIA. The Spring Lake station recorded a total of 152 storm events, of which approximately 89% produced less than or equal to 1.0 inch of rainfall. Only four (4) storm events produced more than 2.0 inches of rainfall. During 2014, the longest rain event recorded lasted hours, coinciding with the highest recorded rainfall amount for a single storm event of 6.04 inches. The maximum average intensity during a single storm event was 3.00 inches per hour. A complete summary of storm data for Spring Lake can be found in Appendix C Annual Rainfall Report Page 36

45 4.11 Shingle Creek Station Information Installation Date May-87 Equipment Campbell CR-1000 Type of Collection Rainfall + Lake Stage Location North Side of Conroy Rd. Bridge over Shingle Creek Drainage Shingle Creek Section Township Range 7-23S-29E Commissioner District 6 Map Legend Designation Description 1 Lake Jennifer 2 Michael's Dam 3 Lake Maitland 4 Riverside Acres 5 Lake Orlando 6 Lake Beauclair 7 Lake Apopka 8 O.C. National 9 Lake Sheen 10 Spring Lake 11 Shingle Creek 12 Boggy Creek 13 Lake Conway 14 Lake Hart A* Public Works Building* B* Emergency Operations Center* C* Sand Lake Repeater Station* * These represent repeater stations and no data is collected at these locations Shingle Creek STA. 6 Boggy Creek Big Wekiva River Drainage STA. D N Not To Scale Lake Apopka Drainage STA. 7 STA. 5 STA. 4 Little Wekiva River Drainage Howell Branch Drainage STA. 3 STA. B STA. 2 STA. 8 Cypress Creek Drainage STA. 11 STA. A STA. 10 STA. C STA. 13 Little Econlockhatchee River Drainage Big Econlockhatchee River Drainage STA. 1 St. Johns River Drainage Reedy Creek Drainage STA. 9 Shingle Creek Drainage STA. 12 Boggy Creek Drainage Lake Hart Drainage STA. 14 Figure 13 - Shingle Creek Location Map 2014 Annual Rainfall Report Page 37

46 O.I.A. - Normal Rainfall Shingle Creek Cumulative Deviation Recorded Rainfall (Inches) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Graph 17 - Shingle Creek Recorded Rainfall & Departure from Normal As indicated on Graph 17 above, only the month of January, February, March, April, July, September, and November was above the normal rainfall with the remaining months below. The resulting rainfall total for the year was inches, which is 3.14 inches above the normal rainfall of inches at OIA. The Shingle Creek station recorded a total of 169 storm events, of which approximately 92% produced less than or equal to 1.0 inch of rainfall. Only three (3) storm events produced more than 2.0 inches of rainfall. During 2014, the longest rain event recorded lasted hours. This coincides with the highest recorded rainfall amount for a single storm event of 5.42 inches. The maximum average intensity during a single storm event was 1.83 inches per hour. A complete summary of storm data for Shingle Creek can be found in Appendix C Annual Rainfall Report Page 38

47 4.12 Boggy Creek Station Information Installation Date Aug-87 Equipment Campbell CR-1000 Type of Collection Rainfall + Canal Stage Location North side of bridge on Landstar Blvd. and Wetherbee Rd. Drainage Boggy Creek Section Township Range 24-24S-29E Commissioner District 4 Map Legend Designation Description 1 Lake Jennifer 2 Michael's Dam 3 Lake Maitland 4 Riverside Acres 5 Lake Orlando 6 Lake Beauclair 7 Lake Apopka 8 O.C. National 9 Lake Sheen 10 Spring Lake 11 Shingle Creek 12 Boggy Creek 13 Lake Conway 14 Lake Hart A* Public Works Building* B* Emergency Operations Center* C* Sand Lake Repeater Station* * These represent repeater stations and no data is collected at these locations Boggy Creek STA. 6 Big Wekiva River Drainage N Not To Scale Lake Apopka Drainage STA. 7 STA. 5 STA. 4 Little Wekiva River Drainage Howell Branch Drainage STA. 3 STA. B STA. 2 STA. 8 Cypress Creek Drainage STA. 11 STA. A STA. 10 STA. C STA. 13 Little Econlockhatchee River Drainage Big Econlockhatchee River Drainage STA. 1 St. Johns River Drainage Reedy Creek Drainage STA. 9 Shingle Creek Drainage STA. 12 Boggy Creek Drainage Lake Hart Drainage STA. 14 Figure 14 - Boggy Creek Location Map 2014 Annual Rainfall Report Page 39

48 10.0 OIA - Normal Rainfall Boggy Creek Cumulative Deviation Recorded Rainfall (Inches) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Graph 18 - Boggy Creek Recorded Rainfall & Departure from Normal As indicated on Graph 18 above, the months of January, March, April, May, June, July, August, September, and November were above the normal rainfall with the remaining months below. The resulting rainfall total for the year was inches, which is 7.31 inches above the normal rainfall of inches at OIA. Boggy Creek station recorded a total of 179 storm events, of which approximately 92% produced less than or equal to 1.0 inch of rainfall. Only two (2) storm events produced more than 2.0 inches of rainfall. During 2014, the longest rain event recorded lasted hours. The highest recorded rainfall amount for a single storm event was 3.32 inches. The maximum average intensity during a single storm event was 2.38 inches per hour. A complete summary of storm data for Boggy Creek can be found in Appendix C Annual Rainfall Report Page 40

49 4.13 Lake Conway Station Information Installation Date May-02 Equipment Campbell CR-1000 Type of Collection Rainfall + Lake Stage Location On Southeast side of Lake Conway off of Daetwyler Dr. in fenced enclosure. Drainage Boggy Creek Section Township Range 30-23S-30E Commissioner District 3 Map Legend Designation Description 1 Lake Jennifer 2 Michael's Dam 3 Lake Maitland 4 Riverside Acres 5 Lake Orlando 6 Lake Beauclair 7 Lake Apopka 8 O.C. National 9 Lake Sheen 10 Spring Lake 11 Shingle Creek 12 Boggy Creek 13 Lake Conway 14 Lake Hart A* Public Works Building* B* Emergency Operations Center* C* Sand Lake Repeater Station* * These represent repeater stations and no data is collected at these locations Lake Conway Lake Conway STA. 6 Big Wekiva River Drainage N STA. D Not To Scale Lake Apopka Drainage STA. 7 STA. 5 Little Wekiva River Drainage STA. 4 Howell Branch Drainage STA. 3 STA. B STA. 2 STA. 8 Cypress Creek Drainage STA. 11 STA. A STA. 10 STA. C STA. 13 Little Econlockhatchee River Drainage STA. 1 Big Econlockhatchee River Drainage STA. 1 St. Johns River Drainage Reedy Creek Drainage STA. 9 Shingle Creek Drainage STA. 12 Boggy Creek Drainage Lake Hart Drainage STA. 14 Figure 15 - Lake Conway Location Map 2014 Annual Rainfall Report Page 41

50 O.I.A. - Normal Rainfall Lake Conway Cumulative Deviation Recorded Rainfall (Inches) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Graph 19 - Lake Conway Recorded Rainfall & Departure from Normal As indicated on Graph 19 above, the months of January, April, May, August, September, and November were above the normal rainfall with the remaining months below. This station recorded a total of inches. This is 4.96 inches above the normal rainfall of inches at OIA. The Lake Conway station recorded a total of 169 storm events, of which approximately 91% produced less than or equal to 1.0 inch of rainfall. There were three (3) storm events that produced more than 2.0 inches of rainfall. During 2014, the longest rain event recorded lasted hours. This coincides with the highest recorded rainfall amount for a single storm event of 4.34 inches. The maximum average intensity during a single storm event was 2.47 inches per hour. A complete summary of storm data for Lake Conway can be found in Appendix C Annual Rainfall Report Page 42

51 4.14 Lake Hart Station Information Installation Date Feb-95 Equipment Campbell CR-1000 Type of Collection Rainfall + Lake Stage Location In Moss Park next to gated park entrance along Moss Park Road. Drainage Lake Hart Section Township Range 23-24S-31E Commissioner District 4 Map Legend Designation Description 1 Lake Jennifer 2 Michael's Dam 3 Lake Maitland 4 Riverside Acres 5 Lake Orlando 6 Lake Beauclair 7 Lake Apopka 8 O.C. National 9 Lake Sheen 10 Spring Lake 11 Shingle Creek 12 Boggy Creek 13 Lake Conway 14 Lake Hart A* Public Works Building* B* Emergency Operations Center* C* Sand Lake Repeater Station* * These represent repeater stations and no data is collected at these locations STA. 6 Big Wekiva River Drainage N Not To Scale Lake Hart Lake Hart Lake Beauclair Lake Hart Lake Hart Lake Mary Jane Road Lake Mary Jane Lake Mary Jane Lake Apopka Drainage STA. 7 STA. 5 Little Wekiva River Drainage STA. 4 Howell Branch Drainage STA. 3 STA. B STA. 2 STA. 8 Reedy Creek Drainage Cypress Creek Drainage STA. 9 STA. 10 Shingle Creek Drainage STA. 11 STA. A STA. C STA. 12 STA. 13 Boggy Creek Drainage Little Econlockhatchee River Drainage Lake Hart Drainage STA. 14 STA. 1A Big Econlockhatchee River Drainage St. Johns River Drainage Figure 16 - Lake Hart Location Map 2014 Annual Rainfall Report Page 43

52 14.0 O.I.A. - Normal Rainfall 12.0 Lake Hart Cumulative Deviation Recorded Rainfall (Inches) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec -2.0 Graph 20 - Lake Hart Recorded Rainfall & Departure from Normal As indicated on Graph 20 above, the months of January, March, April, May, July, September, and November were above the normal rainfall with the remaining months below. The resulting rainfall total for the year was inches. The yearly total was 9.76 inches above the normal rainfall of inches at OIA. The Lake Hart station recorded a total of 190 storm events, of which approximately 92% produced less than or equal to 1.0 inch of rainfall. There were three (3) storm events that produced more than 2.0 inches of rainfall. During 2014, the longest rain event recorded lasted hours. The highest recorded rainfall amount for a single storm event was 3.33 inches. The maximum average intensity during a single storm event was 2.10 inches per hour. A complete summary of storm data for Lake Hart can be found in Appendix C Annual Rainfall Report Page 44

53 Appendix A - Monthly Rainfall Reports

54 Table 5 Sensors and Stations Used to Estimate Missing or Bad Data Periods Monthly rainfall values highlighted in yellow in Table 2 were adjusted to account for the non-recorded or bad data periods listed in the Monthly Rainfall Reports. Either a single nearby station or the average value obtained from two nearby stations was used to arrive at the adjusted value. Stations Used to Estimate Missing or Bad Data: Lake Jennifer = Average(Orange County s Michaels Dam & Lake Hart) Lake Orlando = City of Orlando s Lake Orlando Riverside Acres = Average(Orange County s Spring Lake & O.C. National) O.C. National = Average(Orange County s Lake Sheen & Spring Lake) Lake Sheen = Average(Orange County s Spring Lake & O.C. National) Lake Hart = Average(Orange County s Boggy Creek & Lake Conway) Lake Beauclair = Average(Orange County s Lake Apopka & Riverside Acres) Michael s Dam = Blanchard Park(Orange County Parks & Recreation Division) Lake Maitland = Average(Orange County s or City of Orlando s Lake Orlando & Orange County s Riverside Acres) Spring Lake = Average(Orange County s Shingle Creek & Lake Sheen) Note- City of Orlando - Data obtained from NOAA - Data obtained from National Oceanic & Atmospheric Administration (NOAA) at Orange County Parks & Recreation Division - Data obtained from Orange County Parks and Recreation 2013 Annual Rainfall Report Appendix A Monthly Rainfall Reports Page A-1

55 2014 Annual Rainfall Report Appendix A Monthly Rainfall Reports Page A-2

56 2014 Annual Rainfall Report Appendix A Monthly Rainfall Reports Page A-3

57 2014 Annual Rainfall Report Appendix A Monthly Rainfall Reports Page A-4

58 2014 Annual Rainfall Report Appendix A Monthly Rainfall Reports Page A-5

59 2014 Annual Rainfall Report Appendix A Monthly Rainfall Reports Page A-6

60 2014 Annual Rainfall Report Appendix A Monthly Rainfall Reports Page A-7

61 2014 Annual Rainfall Report Appendix A Monthly Rainfall Reports Page A-8

62 2014 Annual Rainfall Report Appendix A Monthly Rainfall Reports Page A-9

63 2014 Annual Rainfall Report Appendix A Monthly Rainfall Reports Page A-10

64 2014 Annual Rainfall Report Appendix A Monthly Rainfall Reports Page A-11

65 2014 Annual Rainfall Report Appendix A Monthly Rainfall Reports Page A-12

66 2014 Annual Rainfall Report Appendix A Monthly Rainfall Reports Page A-13

67 Appendix B - Monthly Stage and Flow Reports

68 2014 Annual Rainfall Report Appendix B Monthly Stage and Flow Reports Page B-1

69 2014 Annual Rainfall Report Appendix B Monthly Stage and Flow Reports Page B-2

70 2014 Annual Rainfall Report Appendix B Monthly Stage and Flow Reports Page B-3

71 2014 Annual Rainfall Report Appendix B Monthly Stage and Flow Reports Page B-4

72 2014 Annual Rainfall Report Appendix B Monthly Stage and Flow Reports Page B-5

73 2014 Annual Rainfall Report Appendix B Monthly Stage and Flow Reports Page B-6

74 2014 Annual Rainfall Report Appendix B Monthly Stage and Flow Reports Page B-7

75 2014 Annual Rainfall Report Appendix B Monthly Stage and Flow Reports Page B-8

76 2014 Annual Rainfall Report Appendix B Monthly Stage and Flow Reports Page B-9

77 2014 Annual Rainfall Report Appendix B Monthly Stage and Flow Reports Page B-10

78 2014 Annual Rainfall Report Appendix B Monthly Stage and Flow Reports Page B-11

79 2014 Annual Rainfall Report Appendix B Monthly Stage and Flow Reports Page B-12