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27892 SDP2018-0003 California Art Museum TABLE OF CONTENTS PAGES 1-3 PREFACE OF REPORT PAGES 4-35 LOCATION MAPS, SOILS MAP AND DEFINITIONS AND NOAA RAINFALL DATA PAGES 36-52 RATIONAL METHOD HYDROLOGY ANALYSIS PAGES 53-138 SYNTHETIC UNIT HYDROGRAPH ANALYSIS OF RETENTION SYSTEM PAGE 139 NODE MAP (SEE FULL SIZE VERSION IN POUCH) PAGES 141-150 CONCEPTUAL GRADING PLAN (SEE FULL SIZE VERSION IN POUCH) PAGES 151-162 SOILS REPORT/PERCOLATION TESTING RESULTS IN THE CITY OF LA QUINTA, CALIFORNIA PRELIMINARY HYDROLOGY REPORT FOR THE CALIFORNIA DESERT ART MUSEUM SDP 2018-0003, CUP 2018-0004 IN THE SE ¼ OF SECTION 30, T.5 S., R.7 E., SBM SITE DESCRIPTION; The site of the study is a portion of Parcel 3 of Parcel Map 27892 as recorded in Book 182 of Parcel Maps at pages 63 through 66, inclusive, Official Records of Riverside County, as part of a commercial center located north of Avenue 48 between Washington Street and Caleo Bay Drive. The site consists of 1.25 gross acres, including the dedicated street right-of-way of Caleo Bay Drive. The property is currently vacant and surrounded by single-family residential homes to the east, health care offices to the north, mental health care facilities to the south and Washington Street to the west. Caleo Bay Drive originally was slated to drain to the Lake La Quinta development to the east. The capacity of the site has met its maximum and all sites are now required to retain 100% of the calculated stormwater flows onsite. The proposed art museum and studio is comprised of a single main building on the west with a “U” shaped parking lot on the east connecting to Caleo Bay Drive on the northern and southern corners of the site. and on-site system of underground stormwater storage pipes are arrayed in a matrix of three 5-foot diameter corrugated, perforated plastic running west to east with interconnecting manifold on either end. Manholes located on the southeast and northwest corners of the matrix allow for easy access for maintenance and inspection. A Maxwell Plus system of drywells is interconnected to the storage system to allow for percolation of the collected storm flows during and after the storm events. Should the storm event over capacitate the system; overflow would occur via Catch Basin #1 at the southeast corner of the site on Caleo Bay Drive. From there, the flows would continue along their historical routes southerly to either Lake La Quinta or to Avenue 48. The United States Department of Agriculture Soils Map of the Coachella Valley was utilized to determine the soils typing for the calculations and the City of La Quinta Bulletin 06-16 to determine the allowable infiltration rates. Copies are included within the report. PURPOSE OF THIS STUDY; We shall analyze the 10-Year and 100-Year storms utilizing the Riverside County Flood Control and Water Conservation District (RCFC&WCD) Rational and Synthetic Unit Hydrogrpah, Shortcut Methods to determin both the volumes of runoff and the intensities of point flows to the proposed facilities both on-site and off-site. ANALYSIS; Initial Tributary Area “A” is located at the northern most rear of the building. There, a 6-inch diameter drain line continues east and then south to the boundary of Area “D”. The total flow to this point for the 100-Year, 1-Hour event was 1.41 cubic feet per second (CFS or Q100) and a velocity of 3.50 feet per second (FPS or V100). The remaining area drains of Area “A” along the line pick up a small planter area along the parkway of Caleo Bay on either side of the north entry gate and join the proposed 18-inch diamter drain line at the southeast corner of Area “D”. The calculated capacity of the drain line to this critical point assures no larger pipline is required for these two drainage areas. Area “C” consists of the majority southern parking lot and a small portion of the building roof area. This areas flows to the southern gate and onto Caleo Bay Drive to Catch Basin #1. The Q100 flow leaving the site is 1.88 CFS. Area “E” consists of the off-site street improvements of Caleo Bay Drive. The flows from this area confluence with Area “C’s” flows at Catch Basin #1 just south of the southern driveway. The Q100 for Caleo Bay is 0.61 CFS and the confluenced flow Q100 is 2.42 CFS. Calculation for the localized depression show that the 4 inch or 0.33’ depression is capable of keeping and collecting the 100-Year, 1-Hour event with no overflow downstream. 100- Year, 1-Hour velocity within the proposed 18-inch diameter pipeline from Catch Basin #1 to the primary Maxwell Plus chamber confluenced with Area “B”’s is 4.21 CFS and 2.38 FPS. Initial Area “D” consists of the northern part of the building and parking lot. This area drains to a 24-inch square, precase concrete area drain located just inside the northern gate (Node #8). The Q100 to this point is 1.88 CFS and calculation for a grated inlet in a sump show that the ponding elevation to capture the entire flow is 0.23’ above the top of grate. From this point, stormwaters within the 18-inch diameter pipleine flow south to the primary Maxwell Plus chamber as well confluencing with the Area ‘A” flows at a maximum Q100 of 3.29 CFS and a velocity of 1.86 FPS. This flow is easily conveyed to the secondary chamber of the Maxwell Plus system and the matrix of storage pipelines. During the storms analyzed, utilizing the Synthetic Unit Hyrograph method, A City approved factor of 0.25 CFS infiltration was accounted for during each period for the use of the Maxwell Plus system. When flows did not exceed the calculated available capacity, only the volume produced in that period was deducted from the accumulated incoming storm flows. due to the type of soil and the percentage of the impervious site coverage, the 100-Year, 1- Hour event was the most intense as far as accumulated volume generated reaching a depth of 5.00 feet of the 5.00 foot capacity of the system during the 100-Year,3-Hour event, this volume excludes volumes throughout the entire remainder of the storm drain system that act as additional capacity. 4 OF 144 This is an official copy of a portion of the above referenced flood map. It was extracted using FIRMette - Desktop version 3.0. This map does not reflect changes or amendments which may have been made subsequent to the date on the title block. Further information about National Flood Insurance Program flood hazard maps is available at http://www.msc.fema.gov/. 5 OF 144 *IMPORTANT* Maps and data are to be used for reference purposes only. Map features are approximate, and are not necessarily accurate to surveying or engineering standards. The County of Riverside makes no warranty or guarantee as to the content (the source is often third party), accuracy, timeliness, or completeness of any of the data provided, and assumes no legal responsibility for the information contained on this map. Any use of this product with respect to accuracy and precision shall be the sole responsibility of the user. © Riverside County GIS Legend CALIFORNIA ART MUSEUM Notes REPORT PRINTED ON...4/18/2018 8:37:52 AM IN LA QUINTA, CALIFORNIA 0 18894 Feet Parcel APNs Parcels World Street Map 6 OF 144 7 OF 144 NOAA Atlas 14, Volume 6, Version 2 Location name: La Quinta, California, USA* Latitude: 33.7003°, Longitude: -116.2944° Elevation: 61.67 ft** * source: ESRI Maps ** source: USGS POINT PRECIPITATION FREQUENCY ESTIMATES Sanja Perica, Sarah Dietz, Sarah Heim, Lillian Hiner, Kazungu Maitaria, Deborah Martin, Sandra Pavlovic, Ishani Roy, Carl Trypaluk, Dale Unruh, Fenglin Yan, Michael Yekta, Tan Zhao, Geoffrey Bonnin, Daniel Brewer, Li-Chuan Chen, Tye Parzybok, John Yarchoan NOAA, National Weather Service, Silver Spring, Maryland PF_tabular | PF_graphical | Maps_&_aerials PF tabular PDS-based point precipitation frequency estimates with 90% confidence intervals (in inches)1 Duration Average recurrence interval (years) 1 2 5 10 25 50 100 200 500 1000 5-min 0.067 (0.056-0.081) 0.103 (0.085-0.124) 0.157 (0.130-0.191) 0.208 (0.171-0.254) 0.288 (0.229-0.365) 0.359 (0.280-0.466) 0.443 (0.336-0.588) 0.540 (0.399-0.739) 0.696 (0.493-0.994) 0.841 (0.575-1.24) 10-min 0.096 (0.080-0.116) 0.147 (0.122-0.178) 0.225 (0.187-0.273) 0.298 (0.245-0.365) 0.412 (0.329-0.523) 0.515 (0.402-0.668) 0.634 (0.482-0.843) 0.774 (0.572-1.06) 0.998 (0.707-1.42) 1.21 (0.824-1.78) 15-min 0.116 (0.097-0.140) 0.178 (0.148-0.215) 0.272 (0.226-0.331) 0.360 (0.297-0.441) 0.499 (0.397-0.633) 0.623 (0.486-0.807) 0.767 (0.583-1.02) 0.937 (0.692-1.28) 1.21 (0.855-1.72) 1.46 (0.997-2.15) 30-min 0.169 (0.141-0.205) 0.260 (0.217-0.315) 0.398 (0.331-0.484) 0.526 (0.434-0.645) 0.730 (0.581-0.925) 0.912 (0.711-1.18) 1.12 (0.853-1.49) 1.37 (1.01-1.87) 1.77 (1.25-2.52) 2.13 (1.46-3.15) 60-min 0.239 (0.199-0.289) 0.366 (0.305-0.444) 0.561 (0.466-0.682) 0.742 (0.611-0.909) 1.03 (0.819-1.30) 1.28 (1.00-1.66) 1.58 (1.20-2.10) 1.93 (1.43-2.64) 2.49 (1.76-3.55) 3.01 (2.05-4.44) 2-hr 0.332 (0.277-0.402) 0.488 (0.407-0.592) 0.726 (0.603-0.882) 0.945 (0.779-1.16) 1.29 (1.03-1.64) 1.60 (1.24-2.07) 1.95 (1.48-2.58) 2.35 (1.74-3.21) 2.98 (2.11-4.26) 3.55 (2.43-5.25) 3-hr 0.398 (0.332-0.481) 0.578 (0.481-0.700) 0.849 (0.705-1.03) 1.10 (0.906-1.35) 1.49 (1.19-1.89) 1.84 (1.43-2.38) 2.23 (1.70-2.97) 2.69 (1.99-3.67) 3.39 (2.40-4.84) 4.02 (2.75-5.95) 6-hr 0.522 (0.436-0.632) 0.753 (0.628-0.912) 1.10 (0.913-1.34) 1.42 (1.17-1.73) 1.91 (1.52-2.42) 2.34 (1.82-3.03) 2.82 (2.15-3.75) 3.38 (2.50-4.62) 4.24 (3.00-6.05) 5.00 (3.42-7.38) 12-hr 0.632 (0.528-0.765) 0.933 (0.778-1.13) 1.38 (1.15-1.67) 1.78 (1.47-2.18) 2.39 (1.90-3.03) 2.92 (2.28-3.78) 3.51 (2.67-4.66) 4.18 (3.09-5.71) 5.19 (3.68-7.41) 6.08 (4.15-8.98) 24-hr 0.780 (0.691-0.900) 1.19 (1.05-1.37) 1.78 (1.57-2.06) 2.30 (2.02-2.69) 3.10 (2.62-3.73) 3.77 (3.13-4.63) 4.51 (3.66-5.68) 5.35 (4.22-6.91) 6.60 (5.01-8.88) 7.67 (5.63-10.7) 2-day 0.898 (0.795-1.04) 1.39 (1.23-1.60) 2.09 (1.85-2.42) 2.72 (2.38-3.17) 3.65 (3.10-4.40) 4.44 (3.69-5.46) 5.31 (4.31-6.68) 6.28 (4.96-8.12) 7.73 (5.86-10.4) 8.96 (6.57-12.5) 3-day 0.961 (0.851-1.11) 1.49 (1.32-1.72) 2.26 (1.99-2.62) 2.94 (2.57-3.43) 3.96 (3.35-4.76) 4.81 (4.00-5.91) 5.75 (4.67-7.24) 6.81 (5.37-8.80) 8.37 (6.35-11.3) 9.71 (7.13-13.5) 4-day 1.02 (0.900-1.17) 1.58 (1.40-1.83) 2.40 (2.11-2.78) 3.12 (2.73-3.64) 4.20 (3.56-5.06) 5.11 (4.24-6.27) 6.11 (4.95-7.68) 7.22 (5.70-9.33) 8.88 (6.74-11.9) 10.3 (7.56-14.3) 7-day 1.08 (0.953-1.24) 1.67 (1.48-1.93) 2.54 (2.24-2.94) 3.30 (2.89-3.86) 4.44 (3.77-5.35) 5.40 (4.48-6.64) 6.45 (5.23-8.11) 7.61 (6.01-9.84) 9.34 (7.08-12.6) 10.8 (7.92-15.0) 10-day 1.11 (0.978-1.27) 1.72 (1.52-1.99) 2.62 (2.31-3.03) 3.41 (2.98-3.98) 4.59 (3.89-5.53) 5.57 (4.63-6.85) 6.65 (5.39-8.37) 7.84 (6.19-10.1) 9.61 (7.29-12.9) 11.1 (8.14-15.4) 20-day 1.18 (1.04-1.36) 1.86 (1.65-2.15) 2.86 (2.52-3.31) 3.75 (3.28-4.37) 5.06 (4.29-6.10) 6.16 (5.12-7.57) 7.35 (5.97-9.25) 8.67 (6.84-11.2) 10.6 (8.02-14.2) 12.2 (8.93-16.9) 30-day 1.24 (1.10-1.43) 2.00 (1.76-2.30) 3.11 (2.74-3.60) 4.10 (3.58-4.78) 5.57 (4.72-6.71) 6.79 (5.64-8.35) 8.11 (6.58-10.2) 9.55 (7.54-12.3) 11.6 (8.82-15.6) 13.3 (9.78-18.5) 45-day 1.33 (1.18-1.54) 2.19 (1.94-2.53) 3.45 (3.04-3.99) 4.57 (4.00-5.33) 6.25 (5.29-7.53) 7.65 (6.35-9.40) 9.15 (7.42-11.5) 10.8 (8.50-13.9) 13.1 (9.94-17.6) 15.0 (11.0-20.8) 60-day 1.41 (1.24-1.62) 2.35 (2.08-2.71) 3.74 (3.30-4.33) 4.98 (4.36-5.82) 6.84 (5.79-8.23) 8.39 (6.96-10.3) 10.1 (8.15-12.6) 11.8 (9.34-15.3) 14.4 (10.9-19.3) 16.4 (12.1-22.9) 1 Precipitation frequency (PF) estimates in this table are based on frequency analysis of partial duration series (PDS). Numbers in parenthesis are PF estimates at lower and upper bounds of the 90% confidence interval. The probability that precipitation frequency estimates (for a given duration and average recurrence interval) will be greater than the upper bound (or less than the lower bound) is 5%. Estimates at upper bounds are not checked against probable maximum precipitation (PMP) estimates and may be higher than currently valid PMP values. Please refer to NOAA Atlas 14 document for more information. Back to Top Page 1 of 4Precipitation Frequency Data Server 4/12/2018https://hdsc.nws.noaa.gov/hdsc/pfds/pfds_printpage.html?lat=33.7003&lon=-116.2944&da... 8 OF 144 PF graphical Back to Top Page 2 of 4Precipitation Frequency Data Server 4/12/2018https://hdsc.nws.noaa.gov/hdsc/pfds/pfds_printpage.html?lat=33.7003&lon=-116.2944&da... 9 OF 144 Maps & aerials Small scale terrain Large scale terrain Large scale map + – 3km 2mi + – 100km 60mi + – 100km 60mi Page 3 of 4Precipitation Frequency Data Server 4/12/2018https://hdsc.nws.noaa.gov/hdsc/pfds/pfds_printpage.html?lat=33.7003&lon=-116.2944&da... 10 OF 144 Back to Top US Department of Commerce National Oceanic and Atmospheric Administration National Weather Service National Water Center 1325 East West Highway Silver Spring, MD 20910 Questions?: HDSC.Questions@noaa.gov Disclaimer + – 100km 60mi Page 4 of 4Precipitation Frequency Data Server 4/12/2018https://hdsc.nws.noaa.gov/hdsc/pfds/pfds_printpage.html?lat=33.7003&lon=-116.2944&da... 11 OF 144 12 OF 144 13 OF 144 14 OF 144 15 OF 144 16 OF 144 17 OF 144 18 OF 144 19 OF 144 20 OF 144 21 OF 144 22 OF 144 23 OF 144 24 OF 144 25 OF 144 26 OF 144 27 OF 144 28 OF 144 29 OF 144 30 OF 144 31 OF 144 * ~ !" 8 ;;; ::u :z ...... <£) ~. :z -i ""' ::u ~ :z G'l ~ n 11'1 I u; U1 Col U.S. DEPARTMENT OF "COMMERCE 13 12 II 10 0:: ;:) ~ 9 0::· IJJ a.· (/) 8 IJJ :r: 0 ~ 7 ~ >-!::: 6 (/) z. IJJ 1- ~ 5 ..J ..J <( ~ 4 ~ 0:: 3 2 4 0:: ;:) 0 :r: 0:: ~ 3 (/) IJJ :r: 0 ~ ~ >-2 !::: (/) z IJJ 1- ~ ..J ..J <l Ll.. z <l 0:: I 0 60 0 L-..J-~~~~-L~--L-~~--L-..J-_J 0 10 20 30 40 50 60 DURATION IN MINUTES WEATHER BUREAU ZONE n RAINFALL INTENSITY-DURATION CURVES 80 100 120 140 160 180 DURATION IN MINUTES -NOTE ALL POINTS ON SAME CURVE REPRESENT SAME AVERAGE FREQUENCY OF OCCURRENCE. FOR EXAMPLE, FOR A STATION HAVING A 5-YEAR !-HOUR RAINFALL OF 1.4 INCHES, THE 1.4-INCH CURVE INDICATES A 5-YEAR 15-MINUTE RAINFALL INTENSITY OF 3.5 INCHES PER HOUR. Figure 13 COOPERATIVE STUDIES SECTION 200 220 240 32 OF 144 INTENSITY IN/HR PER ZONE II RAINFALL DATA FOR PROJECT:DESERT ART MUSEU JOB NO:20180114 CURVE, FIG. 13, U.S. DEPT. COMM.SITE PER NOAA TABLES CLIENT:SW CONCEPTS 0.74 1.58 BY:AMG DATE:01/06/19 MIN.10YR 100YR 5 3.10 6.58 6 2.47 6.25 7 2.40 5.92 8 2.32 5.59 9 2.25 5.27 10 2.17 4.94 11 2.05 4.74 12 1.92 4.54 13 1.80 4.35 14 1.67 4.15 15 1.55 3.95 16 1.50 3.81 17 1.45 3.68 18 1.40 3.54 19 1.35 3.40 20 1.31 3.27 22 1.25 3.13 24 1.20 3.00 26 1.15 2.85 28 1.10 2.70 30 1.05 2.55 32 1.02 2.45 34 0.98 2.34 36 0.94 2.27 38 0.90 2.22 40 0.86 2.17 45 0.82 1.98 50 0.78 1.78 55 0.74 1.68 60 0.71 1.58 65 0.71 1.48 70 0.70 1.39 75 0.71 1.33 80 0.74 1.28 85 0.86 1.23 0.000 20.000 5 7 9 11 13 15 17 19 22 26 30 34 38 45 55 65 75 85INCHES PER HOURZONE II RAINFALL INTENSITIES BASED UPON FIG. 13, U.S. DEPT. OF COMMERCE, WEATHER BUREAU, COOPERATIVE STUDIES SECTION, 1953 0.2" 0.4" 0.6" 0.8" 1.0" 1.2" 1.4" 1.6" 1.8" 2.0" 2.2" 2.4" 2.6" 2.8" 3.0" RATIONAL METHOD CALCULATION FORM PROJECT:DESERT ART MUSEUM JOB NO:20180114 DATE:01/06/19 PREPARED BY ESSI SHAHANDEH FEQUENCY:10YR CLIENT:SW CONCEPTS BY:AMG DRAINAGE AREA SOIL &A I C ∆ Q Σ Q SLOPE SECTION V L T Σ T REMARKS DEV. TYPE ACRES IN/HR CFS CFS %FPS FT MIN SHEET 1 A (INITIAL)COMM-B 0.24 3.10 0.88 0.66 5.80 NODE 4-11 L=12'(USE 100')H=0.8' 0.66 1.00 6"PIPE 3.36 330 1.64 5.50 B (INITIAL)COMM-B 0.29 3.10 0.88 0.80 5.80 NODE 1-2 L=40'(USE 100')H=0.4' 0.80 1.00 6"PIPE 3.40 473 2.32 8.12 NODE 11 PIPE JCT. AREA C C (INITIAL)COMM-B 0.32 3.10 0.88 0.88 5.50 NODE 5-10 L=217' H=4.4' 0.88 D (INITIAL)COMM-B 0.32 3.10 0.88 0.88 5.70 NODE 7-8 L=165' H=2.4' 0.88 1.00 18"PIPE 3.47 46 0.22 5.92 NODE 11 JCT AREA A-D E (INITIAL)STREET-B 0.11 2.47 0.88 0.24 6.30 NODE 9-10 L=158' H=0.8' 5.50 NODE 10 CB #2 CONFLUCONFL C-E 1.09 1.09 1.00 18"PIPE 3.75 73 0.32 CONFL B-C-E 2.09 5.82 NODE 3 PIPE JCT AREA A-D 2.09 1.00 18"PIPE 4.54 25 0.09 5.92 NODE 6 MAXWELL PRIMARYCONFLU A-D 1.54 1.54 1.00 18"PIPE 4.17 44 0.18 6.10 NODE 6 MAXWELL PRIMARY RATIONAL METHOD CALCULATION FORM PROJECT:DESERT ART MUSEUM JOB NO:20180114 DATE:01/06/19 PREPARED BY ESSI SHAHANDEH FEQUENCY:100YR CLIENT:SW CONCEPTS BY:AMG DRAINAGE AREA SOIL &A I C ∆ Q Σ Q SLOPE SECTION V L T Σ T REMARKS DEV. TYPE ACRES IN/HR CFS CFS %FPS FT MIN SHEET 1 CONFL C-E C (INITIAL) D (INITIAL) A (INITIAL) B (INITIAL) COMM-B 0.24 COMM-B 0.29 COMM-B 0.32 COMM-B 0.32 CONFL B-C-E 6.58 0.89 1.41 CONFLU A-D E (INITIAL) 6.58 0.89 1.70 6.58 0.89 1.88 1.88 STREET-B 0.11 6.25 0.89 6.58 0.89 0.61 2.42 4.21 3.29 1.41 1.70 2.42 1.88 1.88 4.21 3.29 18"PIPE 4.90 18"PIPE 5.58 330 1.571.00 6"PIPE 3.50 473 1.981.00 6"PIPE 3.98 0.161.00 46 25 1.00 18"PIPE 4.77 73 0.26 0.07 1.00 18"PIPE 5.19 44 0.14 1.00 7.78 NODE 11 PIPE JCT. AREA C 5.80 NODE 4-11 L=12'(USE 100')H=0.8' 5.50 5.80 NODE 1-2 L=40'(USE 100')H=0.4' NODE 5-10 L=217' H=4.4' 5.70 NODE 7-8 L=165' H=2.4' 5.50 5.86 NODE 6 MAXWELL PRIMARY 6.20 NODE 9-10 L=158' H=0.8' 5.83 NODE 6 MAXWELL PRIMARY 6.00 NODE 6 MAXWELL PRIMARY 5.50 NODE 10 CB #2 CONFLU 5.76 NODE 3 PIPE JCT AREA A-D 36 OF 144 Culvert Report Hydraflow Express by Intelisolve Thursday, Aug 23 2018 6IN CPP DRAIN AREA A Q10 Invert Elev Dn (ft) = 56.90 Pipe Length (ft) = 330.00 Slope (%) = 1.00 Invert Elev Up (ft) = 60.20 Rise (in) = 6.0 Shape = Cir Span (in) = 6.0 No. Barrels = 1 n-Value = 0.013 Inlet Edge = Sq Edge Coeff. K,M,c,Y,k = 0.0098, 2, 0.0398, 0.67, 0.5 Embankment Top Elevation (ft) = 62.20 Top Width (ft) = 300.00 Crest Width (ft) = 50.00 Calculations Qmin (cfs) = 0.66 Qmax (cfs) = 0.66 Tailwater Elev (ft) = (dc+D)/2 Highlighted Qtotal (cfs) = 0.66 Qpipe (cfs) = 0.66 Qovertop (cfs) = 0.00 Veloc Dn (ft/s) = 3.51 Veloc Up (ft/s) = 3.36 HGL Dn (ft) = 57.36 HGL Up (ft) = 61.65 Hw Elev (ft) = 61.74 Hw/D (ft) = 3.08 Flow Regime = Outlet Control 37 OF 144 Culvert Report Hydraflow Express by Intelisolve Thursday, Aug 23 2018 6IN CPP DRAIN AREA A Q100 Invert Elev Dn (ft) = 56.90 Pipe Length (ft) = 330.00 Slope (%) = 1.00 Invert Elev Up (ft) = 60.20 Rise (in) = 6.0 Shape = Cir Span (in) = 6.0 No. Barrels = 1 n-Value = 0.013 Inlet Edge = Sq Edge Coeff. K,M,c,Y,k = 0.0098, 2, 0.0398, 0.67, 0.5 Embankment Top Elevation (ft) = 62.20 Top Width (ft) = 300.00 Crest Width (ft) = 50.00 Calculations Qmin (cfs) = 1.41 Qmax (cfs) = 1.41 Tailwater Elev (ft) = (dc+D)/2 Highlighted Qtotal (cfs) = 1.41 Qpipe (cfs) = 0.69 Qovertop (cfs) = 0.72 Veloc Dn (ft/s) = 3.64 Veloc Up (ft/s) = 3.50 HGL Dn (ft) = 57.36 HGL Up (ft) = 62.00 Hw Elev (ft) = 62.09 Hw/D (ft) = 3.79 Flow Regime = Outlet Control 38 OF 144 Culvert Report Hydraflow Express by Intelisolve Sunday, Jan 6 2019 8IN CPP DRAIN AREA B Q10 Invert Elev Dn (ft) = 55.17 Pipe Length (ft) = 473.00 Slope (%) = 1.00 Invert Elev Up (ft) = 59.90 Rise (in) = 8.0 Shape = Cir Span (in) = 8.0 No. Barrels = 1 n-Value = 0.013 Inlet Edge = Sq Edge Coeff. K,M,c,Y,k = 0.0098, 2, 0.0398, 0.67, 0.5 Embankment Top Elevation (ft) = 62.20 Top Width (ft) = 300.00 Crest Width (ft) = 50.00 Calculations Qmin (cfs) = 0.80 Qmax (cfs) = 0.80 Tailwater Elev (ft) = 0.00 Highlighted Qtotal (cfs) = 0.80 Qpipe (cfs) = 0.80 Qovertop (cfs) = 0.00 Veloc Dn (ft/s) = 3.40 Veloc Up (ft/s) = 3.40 HGL Dn (ft) = 55.60 HGL Up (ft) = 60.33 Hw Elev (ft) = 60.56 Hw/D (ft) = 0.99 Flow Regime = Inlet Control Culvert Report Hydraflow Express by Intelisolve Sunday, Jan 6 2019 8IN CPP DRAIN AREA B Q100 Invert Elev Dn (ft) = 55.17 Pipe Length (ft) = 473.00 Slope (%) = 1.00 Invert Elev Up (ft) = 59.90 Rise (in) = 8.0 Shape = Cir Span (in) = 8.0 No. Barrels = 1 n-Value = 0.013 Inlet Edge = Sq Edge Coeff. K,M,c,Y,k = 0.0098, 2, 0.0398, 0.67, 0.5 Embankment Top Elevation (ft) = 62.20 Top Width (ft) = 300.00 Crest Width (ft) = 50.00 Calculations Qmin (cfs) = 1.70 Qmax (cfs) = 1.70 Tailwater Elev (ft) = 0.00 Highlighted Qtotal (cfs) = 1.70 Qpipe (cfs) = 1.39 Qovertop (cfs) = 0.31 Veloc Dn (ft/s) = 4.47 Veloc Up (ft/s) = 3.98 HGL Dn (ft) = 55.73 HGL Up (ft) = 61.95 Hw Elev (ft) = 62.07 Hw/D (ft) = 3.25 Flow Regime = Outlet Control Channel Report Hydraflow Express by Intelisolve Thursday, Aug 23 2018 AREA A-D CONFL 18 IN CPP NODE 6-11 Q10 Circular Diameter (ft) = 1.50 Invert Elev (ft) = 56.70 Slope (%) = 1.00 N-Value = 0.013 Calculations Compute by: Known Q Known Q (cfs) = 1.54 Highlighted Depth (ft) = 0.39 Q (cfs) = 1.540 Area (sqft) = 0.37 Velocity (ft/s) = 4.17 Wetted Perim (ft) = 1.61 Crit Depth, Yc (ft) = 0.47 Top Width (ft) = 1.32 EGL (ft) = 0.66 0 1 2 3 4 Elev (ft)Section 56.00 -0 56.50 -0 57.00 0 57.50 0 58.00 1 58.50 1 59.00 2 Reach (ft) 41 OF 144 Channel Report Hydraflow Express by Intelisolve Thursday, Aug 23 2018 AREA A-D CONFL 18 IN CPP NODE 6-11 Q100 Circular Diameter (ft) = 1.50 Invert Elev (ft) = 56.70 Slope (%) = 1.00 N-Value = 0.013 Calculations Compute by: Known Q Known Q (cfs) = 3.29 Highlighted Depth (ft) = 0.58 Q (cfs) = 3.290 Area (sqft) = 0.63 Velocity (ft/s) = 5.19 Wetted Perim (ft) = 2.02 Crit Depth, Yc (ft) = 0.69 Top Width (ft) = 1.46 EGL (ft) = 1.00 0 1 2 3 4 Elev (ft)Section 56.00 -0 56.50 -0 57.00 0 57.50 0 58.00 1 58.50 1 59.00 2 Reach (ft) 42 OF 144 Channel Report Hydraflow Express by Intelisolve Thursday, Aug 23 2018 AREA B-C-E CONFL 18 IN CPP NODE 3-6 Q10 Circular Diameter (ft) = 1.50 Invert Elev (ft) = 56.70 Slope (%) = 1.00 N-Value = 0.013 Calculations Compute by: Known Q Known Q (cfs) = 2.09 Highlighted Depth (ft) = 0.46 Q (cfs) = 2.090 Area (sqft) = 0.46 Velocity (ft/s) = 4.54 Wetted Perim (ft) = 1.76 Crit Depth, Yc (ft) = 0.55 Top Width (ft) = 1.38 EGL (ft) = 0.78 0 1 2 3 4 Elev (ft)Section 56.00 -0 56.50 -0 57.00 0 57.50 0 58.00 1 58.50 1 59.00 2 Reach (ft) 43 OF 144 Channel Report Hydraflow Express by Intelisolve Thursday, Aug 23 2018 AREA B-C-E CONFL 18 IN CPP NODE 3-6 Q100 Circular Diameter (ft) = 1.50 Invert Elev (ft) = 56.70 Slope (%) = 1.00 N-Value = 0.013 Calculations Compute by: Known Q Known Q (cfs) = 4.21 Highlighted Depth (ft) = 0.66 Q (cfs) = 4.210 Area (sqft) = 0.75 Velocity (ft/s) = 5.58 Wetted Perim (ft) = 2.18 Crit Depth, Yc (ft) = 0.79 Top Width (ft) = 1.49 EGL (ft) = 1.14 0 1 2 3 4 Elev (ft)Section 56.00 -0 56.50 -0 57.00 0 57.50 0 58.00 1 58.50 1 59.00 2 Reach (ft) 44 OF 144 Channel Report Hydraflow Express by Intelisolve Thursday, Aug 23 2018 AREA C-E CONFL 18 IN CPP NODE 3 Q10 Circular Diameter (ft) = 1.50 Invert Elev (ft) = 56.70 Slope (%) = 1.00 N-Value = 0.013 Calculations Compute by: Known Q Known Q (cfs) = 1.09 Highlighted Depth (ft) = 0.33 Q (cfs) = 1.090 Area (sqft) = 0.29 Velocity (ft/s) = 3.75 Wetted Perim (ft) = 1.47 Crit Depth, Yc (ft) = 0.39 Top Width (ft) = 1.25 EGL (ft) = 0.55 0 1 2 3 4 Elev (ft)Section 56.00 -0 56.50 -0 57.00 0 57.50 0 58.00 1 58.50 1 59.00 2 Reach (ft) 45 OF 144 Channel Report Hydraflow Express by Intelisolve Thursday, Aug 23 2018 AREA C-E CONFL 18 IN CPP NODE 3 Q100 Circular Diameter (ft) = 1.50 Invert Elev (ft) = 56.70 Slope (%) = 1.00 N-Value = 0.013 Calculations Compute by: Known Q Known Q (cfs) = 2.41 Highlighted Depth (ft) = 0.49 Q (cfs) = 2.410 Area (sqft) = 0.50 Velocity (ft/s) = 4.77 Wetted Perim (ft) = 1.83 Crit Depth, Yc (ft) = 0.59 Top Width (ft) = 1.41 EGL (ft) = 0.84 0 1 2 3 4 Elev (ft)Section 56.00 -0 56.50 -0 57.00 0 57.50 0 58.00 1 58.50 1 59.00 2 Reach (ft) 46 OF 144 Channel Report Hydraflow Express by Intelisolve Thursday, Aug 23 2018 AREA D 18 IN CPP NODE 8-11 Q10 Circular Diameter (ft) = 1.50 Invert Elev (ft) = 56.70 Slope (%) = 1.00 N-Value = 0.013 Calculations Compute by: Known Q Known Q (cfs) = 0.88 Highlighted Depth (ft) = 0.30 Q (cfs) = 0.880 Area (sqft) = 0.25 Velocity (ft/s) = 3.47 Wetted Perim (ft) = 1.39 Crit Depth, Yc (ft) = 0.35 Top Width (ft) = 1.20 EGL (ft) = 0.49 0 1 2 3 4 Elev (ft)Section 56.00 -0 56.50 -0 57.00 0 57.50 0 58.00 1 58.50 1 59.00 2 Reach (ft) 47 OF 144 Channel Report Hydraflow Express by Intelisolve Thursday, Aug 23 2018 AREA D 18 IN CPP NODE 8-11 Q100 Circular Diameter (ft) = 1.50 Invert Elev (ft) = 56.70 Slope (%) = 1.00 N-Value = 0.013 Calculations Compute by: Known Q Known Q (cfs) = 1.88 Highlighted Depth (ft) = 0.43 Q (cfs) = 1.880 Area (sqft) = 0.42 Velocity (ft/s) = 4.49 Wetted Perim (ft) = 1.69 Crit Depth, Yc (ft) = 0.52 Top Width (ft) = 1.36 EGL (ft) = 0.74 0 1 2 3 4 Elev (ft)Section 56.00 -0 56.50 -0 57.00 0 57.50 0 58.00 1 58.50 1 59.00 2 Reach (ft) 48 OF 144 49 OF 144 50 OF 144 51 OF 144 52 OF 144 AVERAGE ADJUSTED LOSS RATE[1][2][3][4][5][6][7][8] [9][10]SOILS COVER RI NUMBER PERVIOUS LAND USE DECIMAL ADJUSTED AVERAGEGROUP TYPE (PLATE E-6.1) AREA PERCENTAGE INFILTRATION AREA [8]ADJUSTEDRFCFCD&(PLATE C-1)INFIL. RATEOF AREA RATE-IN/HR (ACRES)Σ[8]INFILTEATIONWCDIN/HRIMPERVIOUS [4](1*(.9* [6])RATE IN/HR(PLATE E-6.2)(PLATE E-6.3)[7] * [9]HYDROLOGYPRECONSTMANUALB COMM 560.51VACANT0.090.468691.25 10.46869LOSSYNTHETICSUNITPOSTCONSTHYDROGRAPHB COMM 560.51COMM0.90.09691.25 10.0969RMETHODATBASICEDATAFORMDPRECONSTRUCTION Σ[8]=1.25Σ[10]=0.46869APOSTCONSTRUCTION Σ[8]=1.25Σ[10]=0.0969TAVARIABLE LOSS RATE CURVE (24-HOUR STORM ONLY)PRECONSTRUCTION=0.234IN/HRPROJECT:Fm=Minimum Loss Rate=F/2=Σ[10]/2=CAL. ARTPOSTCONSTRUCTION=0.048IN/HRBY:AMGPRECONSTRUCTION=0.004340DATE:C=(F-Fm)/54=(Σ[10]-Fm)/54=8/22/2018POST CONSTRUCTION=0.000897CHECKED BY:ESPRECONSTRUCTION=0.004340*(24-(/60))1.55+0.234IN/HRDATE:Ft=C(24-(T/60))1.55+Fm=8/22/2018POST CONSTRUCTION=0.000897*(24-(/60))1.55+0.048IN/HRSHEET #WHERE: T=TIME IN MINUTES. TO GET AN AVERAGE VALUE FOR EACH UNIT TIME PERIOR, USE T=1/2 THE UNIT1FOR THE FIRST TIME PERIOD, T=1 1/2 UNIT TIME FOR THE SECOND PERIOD, ETC.OF153 OF 144 54 OF 144 RCFC &WCD'S SYNTHETIC UNIT HYDROGRAPH METHOD PROJECT: CAL. ART BASIC DATA CALCULATION FORM BY: AMG DATE: 8/22/18 JOB #: 201801214 [1] CONCENTRATION POINT 1 [2] AREA DESIGNATION A PRECONSTRUCTION [3] AREA - SQ INCHES - [4] AREA ADJUSTMENT FACTOR - [5] AREA ACRES 1.2500 [6] L-INCHES 0.66 [7]L-ADJUSTMENT FACTOR 0.66 [8]L-MILES ( [6]*[7] ) 0.073 [9] LCA - INCHES - [10]LCA - MILES ( [7]*[9] ) 0.018 [11] ELEVATION OF HEADWATER 62.00 [12] ELEVATION OF CONCENTRATION POINT 1.32 [13] H- FEET ( [11]-[12] ) 60.68 [14] S - FEET/MILE ( [13/[8] ) 832.18 [15] S**0.5 28.85 [16] L*LCA/S**.5 ( [8]*[10]/[15] ) 0.00005 [17] AVERAGE MANNING "N" 0.025 [18] LAG TIME - HOURS ( 24*[17]*[16]**0.38 ) (PLATE E-3) 0.0185094 [19] LAG TIME - MINUTES ( 60*[18] ) 1.11 [20] 25% OF LAG TIME ( 0.25*[19] ) 0.28 [21] 40% OF LAG TIME ( 0.40*[19] ) 0.44 [22] UNIT TIME - MINUTES ( 25-[21] ) 24.56 `` RAINFALL DATA [1] SOURCE RCFCWCD [2] FREQUENCY - YEARS 2YR 24HR [3] DURATION: 3 HOUR 6 HOUR 24 HOUR [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] POINT AREA [5]AVG. POINT AREA [9]AVG. POINT AREA [13]AVG. RAIN SQ Σ [5] POINT RAIN SQ Σ [9] POINT RAIN SQ Σ [13] POINT INCHES INCHES RAIN IN. INCHES INCHES RAIN IN. INCHES INCHES RAIN IN. - - 0.00 - - 0.00 1.19 - - 1.19 Σ [5]=-Σ [7]= 0.00 Σ [9]=-Σ [11]= 0.00 Σ [13]=-Σ [15]= 1.19 [16] AREAL ADJ FACTOR 1 (SEE PLATE E-5.8)11 [17] ADJ.AVG.POINT RAIN 0 ([16]* Σ [7],ETC)0 1.19 55 OF 144 56 OF 144 RCFC &WCD'S SYNTHETIC UNIT HYDROGRAPH METHOD PROJECT: CAL. ART UNIT HYDROGRAPH AND EFFECTIVE RAIN CALCULATION SHEET BY: AMG DATE: 8/22/18 JOB #: 201801214 [1] CONCENTRATION POINT 1 [2] AREA DESIGNATION A PRECONSTRUCTION [3] DRAINAGE AREA - ACRES 1.2500 [4] ULTIMATE DISCHARGE-CFS-HRS/IN (645*[3]N/A [5] UNIT TIME - MINUTES 15 [6] LAG TIME-MINUTES 1.11 [7] UNIT TIME - PERCENT OF LAG (100*[5]/[6])N/A [8] S-CURVE DESERT [9] STORM FREQUENCY & DURATION 2YR 24HR [10] TOTAL ADJUSTED STORM RAIN-INCHES 1.19 [11] VARIABLE LOSS RATE (AVG) - IN/HR 0.004339722 [12] MINIMUM LOSS RATE (FOR VAR. LOSS)-IN/HR 0.234345 [13] CONSTANT LOSS RATE - IN/HR -[14] LOW LOSS RATE-PERCENT 90 UNIT HYDROGRAPH [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] UNIT TIME CULMULATIVE DISTRIB. UNIT PATTERN STORM LOSS EFFECTIVE FLOW TIME PERCENT AVERAGE GRAPH HYDROGRAPH PERCENT RAIN RATE RAIN CFS PERIOD OF LAG PERCENT OF PERCENT CFS-HRS/IN (PL E-5.9) IN/HR IN/HR IN/HR m [7]*[15] ULTIMATE [17]m- [4]*[18]60[10][20][21]-[22] DISCHARGE [17]m-1 100 100[5] MAX LOW (S-GRAPH) 1 0.20 0.010 0.828 0.009 0.001 0.001 2 0.30 0.014 0.818 0.013 0.001 0.002 3 0.30 0.014 0.808 0.013 0.001 0.002 4 0.40 0.019 0.799 0.017 0.002 0.002 5 0.30 0.014 0.790 0.013 0.001 0.002 6 0.30 0.014 0.780 0.013 0.001 0.002 7 0.30 0.014 0.771 0.013 0.001 0.002 8 0.40 0.019 0.762 0.017 0.002 0.002 9 0.40 0.019 0.752 0.017 0.002 0.002 10 0.40 0.019 0.743 0.017 0.002 0.002 11 0.50 0.024 0.734 0.021 0.002 0.003 12 0.50 0.024 0.725 0.021 0.002 0.003 13 0.50 0.024 0.716 0.021 0.002 0.003 14 0.50 0.024 0.707 0.021 0.002 0.003 15 0.50 0.024 0.698 0.021 0.002 0.003 16 43334.00 0.60 0.029 0.690 0.026 0.003 0.004 17 0.60 0.029 0.681 0.026 0.003 0.004 18 0.70 0.033 0.672 0.030 0.003 0.004 19 0.70 0.033 0.664 0.030 0.003 0.004 20 0.80 0.038 0.655 0.034 0.004 0.005 21 0.60 0.029 0.647 0.026 0.003 0.004 22 0.70 0.033 0.638 0.030 0.003 0.004 23 0.80 0.038 0.630 0.034 0.004 0.005 24 0.80 0.038 0.621 0.034 0.004 0.005 25 0.90 0.043 0.613 0.039 0.004 0.005 26 0.90 0.043 0.605 0.039 0.004 0.005 27 1.00 0.048 0.597 0.043 0.005 0.006 28 1.00 0.048 0.589 0.043 0.005 0.006 29 1.00 0.048 0.581 0.043 0.005 0.006 30 1.10 0.052 0.573 0.047 0.005 0.007 31 1.2 0.057 0.565 0.051 0.006 0.007 32 1.30 0.062 0.557 0.056 0.006 0.008 33 1.50 0.071 0.550 0.064 0.007 0.009 34 1.50 0.071 0.542 0.064 0.007 0.009 35 1.60 0.076 0.534 0.069 0.008 0.010 36 1.70 0.081 0.527 0.073 0.008 0.010 57 OF 144 RCFC &WCD'S SYNTHETIC UNIT HYDROGRAPH METHOD PROJECT: CAL. ART UNIT HYDROGRAPH AND EFFECTIVE RAIN CALCULATION SHEET BY: AMG DATE: 8/22/18 JOB #: 201801214 [1] CONCENTRATION POINT 1 [2] AREA DESIGNATION A PRECONSTRUCTION [3] DRAINAGE AREA - ACRES 1.2500 [4] ULTIMATE DISCHARGE-CFS-HRS/IN (645*[3]N/A [5] UNIT TIME - MINUTES 15 [6] LAG TIME-MINUTES 1.11 [7] UNIT TIME - PERCENT OF LAG (100*[5]/[6])N/A [8] S-CURVE DESERT [9] STORM FREQUENCY & DURATION 2YR 24HR [10] TOTAL ADJUSTED STORM RAIN-INCHES 1.19 [11] VARIABLE LOSS RATE (AVG) - INCHES/HOU 0.004339722 [12] MINIMUM LOSS RATE (FOR VAR. LOSS)-IN/HR 0.234345 [13] CONSTANT LOSS RATE - INCHES PER HOU -[14] LOW LOSS RATE-PERCENT 90 UNIT HYDROGRAPH [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] UNIT TIME CULMULATIVE DISTRIB. UNIT PATTERN STORM LOSS EFFECTIVE FLOW TIME PERCENT AVERAGE GRAPH HYDROGRAPH PERCENT RAIN RATE RAIN CFS PERIOD OF LAG PERCENT OF PERCENT CFS-HRS/IN (PL E-5.9) IN/HR IN/HR IN/HR m [7]*[15] ULTIMATE [17]m- [4]*[18]60[10][20][21]-[22] DISCHARGE [17]m-1 100 100[5] MAX LOW (S-GRAPH) 37 1.90 0.090 0.519 0.081 0.009 0.011 38 2.00 0.095 0.512 0.086 0.010 0.012 39 2.10 0.100 0.505 0.090 0.010 0.012 40 2.20 0.105 0.497 0.094 0.010 0.013 41 1.50 0.071 0.490 0.064 0.007 0.009 42 1.50 0.071 0.483 0.064 0.007 0.009 43 2.00 0.095 0.476 0.086 0.010 0.012 44 2.00 0.095 0.469 0.086 0.010 0.012 45 1.90 0.090 0.462 0.081 0.009 0.011 46 1.90 0.090 0.455 0.081 0.009 0.011 47 1.70 0.081 0.449 0.073 0.008 0.010 48 1.80 0.086 0.442 0.077 0.009 0.011 49 2.50 0.119 0.435 0.107 0.012 0.015 50 2.60 0.124 0.429 0.111 0.012 0.015 51 2.80 0.133 0.422 0.120 0.013 0.017 52 2.90 0.138 0.416 0.124 0.014 0.017 53 3.40 0.162 0.410 0.146 0.016 0.020 54 3.40 0.162 0.403 0.146 0.016 0.020 55 2.30 0.109 0.397 0.099 0.011 0.014 56 2.30 0.109 0.391 0.099 0.011 0.014 57 2.70 0.129 0.385 0.116 0.013 0.016 58 2.60 0.124 0.379 0.111 0.012 0.015 59 2.60 0.124 0.374 0.111 0.012 0.015 60 2.50 0.119 0.368 0.107 0.012 0.015 61 2.40 0.114 0.362 0.103 0.011 0.014 62 2.30 0.109 0.357 0.099 0.011 0.014 63 1.90 0.090 0.351 0.081 0.009 0.011 64 1.90 0.090 0.346 0.081 0.009 0.011 65 0.40 0.019 0.341 0.017 0.002 0.002 66 0.40 0.019 0.335 0.017 0.002 0.002 67 0.30 0.014 0.330 0.013 0.001 0.002 68 0.30 0.014 0.325 0.013 0.001 0.002 69 0.50 0.024 0.320 0.021 0.002 0.003 70 0.50 0.024 0.316 0.021 0.002 0.003 71 0.50 0.024 0.311 0.021 0.002 0.003 72 0.40 0.019 0.306 0.017 0.002 0.002 58 OF 144 RCFC &WCD'S SYNTHETIC UNIT HYDROGRAPH METHOD PROJECT: CAL. ART UNIT HYDROGRAPH AND EFFECTIVE RAIN CALCULATION SHEET BY: AMG DATE: 8/22/18 JOB #: 201801214 [1] CONCENTRATION POINT 1 [2] AREA DESIGNATION A PRECONSTRUCTION [3] DRAINAGE AREA - ACRES 1.2500 [4] ULTIMATE DISCHARGE-CFS-HRS/IN (645*[3]N/A [5] UNIT TIME - MINUTES 15 [6] LAG TIME-MINUTES 1.11 [7] UNIT TIME - PERCENT OF LAG (100*[5]/[6])N/A [8] S-CURVE DESERT [9] STORM FREQUENCY & DURATION 2YR 24HR [10] TOTAL ADJUSTED STORM RAIN-INCHES 1.19 [11] VARIABLE LOSS RATE (AVG) - INCHES/HOU 0.004339722 [12] MINIMUM LOSS RATE (FOR VAR. LOSS)-IN/HR 0.234345 [13] CONSTANT LOSS RATE - INCHES PER HOU 0.18 [14] LOW LOSS RATE-PERCENT 90 UNIT HYDROGRAPH [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] UNIT TIME CULMULATIVE DISTRIB. UNIT PATTERN STORM LOSS EFFECTIVE FLOW TIME PERCENT AVERAGE GRAPH HYDROGRAPH PERCENT RAIN RATE RAIN CFS PERIOD OF LAG PERCENT OF PERCENT CFS-HRS/IN (PL E-5.9) IN/HR IN/HR IN/HR m [7]*[15] ULTIMATE [17]m- [4]*[18]60[10][20][21]-[22] DISCHARGE [17]m-1 100 100[5] MAX LOW (S-GRAPH) 73 0.40 0.019 0.302 0.017 0.002 0.002 74 0.40 0.019 0.297 0.017 0.002 0.002 75 0.30 0.014 0.293 0.013 0.001 0.002 76 0.20 0.010 0.289 0.009 0.001 0.001 77 0.30 0.014 0.285 0.013 0.001 0.002 78 0.40 0.019 0.281 0.017 0.002 0.002 79 0.30 0.014 0.277 0.013 0.001 0.002 80 0.20 0.010 0.273 0.009 0.001 0.001 81 0.30 0.014 0.270 0.013 0.001 0.002 82 0.30 0.014 0.266 0.013 0.001 0.002 83 0.30 0.014 0.263 0.013 0.001 0.002 84 0.20 0.010 0.260 0.009 0.001 0.001 85 0.30 0.014 0.257 0.013 0.001 0.002 86 0.20 0.010 0.254 0.009 0.001 0.001 87 0.30 0.014 0.251 0.013 0.001 0.002 88 0.20 0.010 0.248 0.009 0.001 0.001 89 0.30 0.014 0.246 0.013 0.001 0.002 90 0.20 0.010 0.244 0.009 0.001 0.001 91 0.20 0.010 0.241 0.009 0.001 0.001 92 0.20 0.010 0.240 0.009 0.001 0.001 93 0.20 0.010 0.238 0.009 0.001 0.001 94 0.20 0.010 0.236 0.009 0.001 0.001 95 0.20 0.010 0.235 0.009 0.001 0.001 96 0.20 0.010 0.235 0.009 0.001 0.001 Σ=100%Σ= 0.476 0.48 IN/HR*0.25=0.12 " 0.12 " * 0.0833 * 1.2500 ACRES= 0.0124 AC FT= 539.96 CF 59 OF 144 PROJECT: CAL. ART BY: AMG 2YR 24HR DATE: 8/22/18 JOB #: 201801214 0 20 40 60 80 100 120 5305580105130155180210260310360420550800DISCHARGE IN PERCENT OF ULTIMATE DISCHARGE (K)TIME IN PERCENT OF LAG S-CURVE DESERT AREA 0.000 0.002 0.004 0.006 0.008 0.010 0.012 0.014 0.016 0.018 1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67 70 73 76 79 82 85 88 91 94IN/HRPERIOD (15 MIN) RAINFALL INTENSITY (IN/HR) 60 OF 144 RCFC &WCD'S SYNTHETIC UNIT HYDROGRAPH METHOD PROJECT: CAL. ART BASIC DATA CALCULATION FORM BY: AMG DATE: 8/22/18 JOB #: 201801214 [1] CONCENTRATION POINT 1 [2] AREA DESIGNATION A PRECONSTRUCTION [3] AREA - SQ INCHES - [4] AREA ADJUSTMENT FACTOR - [5] AREA ACRES 1.2500 [6] L-INCHES 0.66 [7]L-ADJUSTMENT FACTOR 0.66 [8]L-MILES ( [6]*[7] ) 0.073 [9] LCA - INCHES - [10]LCA - MILES ( [7]*[9] ) 0.018 [11] ELEVATION OF HEADWATER 62.00 [12] ELEVATION OF CONCENTRATION POINT 1.32 [13] H- FEET ( [11]-[12] ) 60.68 [14] S - FEET/MILE ( [13/[8] ) 832.18 [15] S**0.5 28.85 [16] L*LCA/S**.5 ( [8]*[10]/[15] ) 0.00005 [17] AVERAGE MANNING "N" 0.025 [18] LAG TIME - HOURS ( 24*[17]*[16]**0.38 ) (PLATE E-3) 0.0185094 [19] LAG TIME - MINUTES ( 60*[18] ) 1.11 [20] 25% OF LAG TIME ( 0.25*[19] ) 0.28 [21] 40% OF LAG TIME ( 0.40*[19] ) 0.44 [22] UNIT TIME - MINUTES ( 25-[21] ) 24.56 `` RAINFALL DATA [1] SOURCE RCFCWCD [2] FREQUENCY - YEARS 10YR 24HR [3] DURATION: 3 HOUR 6 HOUR 24 HOUR [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] POINT AREA [5]AVG. POINT AREA [9]AVG. POINT AREA [13]AVG. RAIN SQ Σ [5] POINT RAIN SQ Σ [9] POINT RAIN SQ Σ [13] POINT INCHES INCHES RAIN IN. INCHES INCHES RAIN IN. INCHES INCHES RAIN IN. - - 0.00 - - 0.00 2.30 - - 2.30 Σ [5]=-Σ [7]= 0.00 Σ [9]=-Σ [11]= 0.00 Σ [13]=-Σ [15]= 2.30 [16] AREAL ADJ FACTOR 1 (SEE PLATE E-5.8)11 [17] ADJ.AVG.POINT RAIN 0 ([16]* Σ [7],ETC)0 2.3 61 OF 144 62 OF 144 RCFC &WCD'S SYNTHETIC UNIT HYDROGRAPH METHOD PROJECT: CAL. ART UNIT HYDROGRAPH AND EFFECTIVE RAIN CALCULATION SHEET BY: AMG DATE: 8/22/18 JOB #: 201801214 [1] CONCENTRATION POINT 1 [2] AREA DESIGNATION A PRECONSTRUCTION [3] DRAINAGE AREA - ACRES 1.2500 [4] ULTIMATE DISCHARGE-CFS-HRS/IN (645*[3]N/A [5] UNIT TIME - MINUTES 15 [6] LAG TIME-MINUTES 1.11 [7] UNIT TIME - PERCENT OF LAG (100*[5]/[6])N/A [8] S-CURVE DESERT [9] STORM FREQUENCY & DURATION 10YR 24HR [10] TOTAL ADJUSTED STORM RAIN-INCHES 2.30 [11] VARIABLE LOSS RATE (AVG) - IN/HR 0.004339722 [12] MINIMUM LOSS RATE (FOR VAR. LOSS)-IN/HR 0.234345 [13] CONSTANT LOSS RATE - IN/HR -[14] LOW LOSS RATE-PERCENT 90 UNIT HYDROGRAPH [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] UNIT TIME CULMULATIVE DISTRIB. UNIT PATTERN STORM LOSS EFFECTIVE FLOW TIME PERCENT AVERAGE GRAPH HYDROGRAPH PERCENT RAIN RATE RAIN CFS PERIOD OF LAG PERCENT OF PERCENT CFS-HRS/IN (PL E-5.9) IN/HR IN/HR IN/HR m [7]*[15] ULTIMATE [17]m- [4]*[18]60[10][20][21]-[22] DISCHARGE [17]m-1 100 100[5] MAX LOW (S-GRAPH) 1 0.20 0.018 0.828 0.017 0.002 0.002 2 0.30 0.028 0.818 0.025 0.003 0.003 3 0.30 0.028 0.808 0.025 0.003 0.003 4 0.40 0.037 0.799 0.033 0.004 0.005 5 0.30 0.028 0.790 0.025 0.003 0.003 6 0.30 0.028 0.780 0.025 0.003 0.003 7 0.30 0.028 0.771 0.025 0.003 0.003 8 0.40 0.037 0.762 0.033 0.004 0.005 9 0.40 0.037 0.752 0.033 0.004 0.005 10 0.40 0.037 0.743 0.033 0.004 0.005 11 0.50 0.046 0.734 0.041 0.005 0.006 12 0.50 0.046 0.725 0.041 0.005 0.006 13 0.50 0.046 0.716 0.041 0.005 0.006 14 0.50 0.046 0.707 0.041 0.005 0.006 15 0.50 0.046 0.698 0.041 0.005 0.006 16 43334.00 0.60 0.055 0.690 0.050 0.006 0.007 17 0.60 0.055 0.681 0.050 0.006 0.007 18 0.70 0.064 0.672 0.058 0.006 0.008 19 0.70 0.064 0.664 0.058 0.006 0.008 20 0.80 0.074 0.655 0.066 0.007 0.009 21 0.60 0.055 0.647 0.050 0.006 0.007 22 0.70 0.064 0.638 0.058 0.006 0.008 23 0.80 0.074 0.630 0.066 0.007 0.009 24 0.80 0.074 0.621 0.066 0.007 0.009 25 0.90 0.083 0.613 0.075 0.008 0.010 26 0.90 0.083 0.605 0.075 0.008 0.010 27 1.00 0.092 0.597 0.083 0.009 0.012 28 1.00 0.092 0.589 0.083 0.009 0.012 29 1.00 0.092 0.581 0.083 0.009 0.012 30 1.10 0.101 0.573 0.091 0.010 0.013 31 1.2 0.110 0.565 0.099 0.011 0.014 32 1.30 0.120 0.557 0.108 0.012 0.015 33 1.50 0.138 0.550 0.124 0.014 0.017 34 1.50 0.138 0.542 0.124 0.014 0.017 35 1.60 0.147 0.534 0.132 0.015 0.018 36 1.70 0.156 0.527 0.141 0.016 0.020 63 OF 144 RCFC &WCD'S SYNTHETIC UNIT HYDROGRAPH METHOD PROJECT: CAL. ART UNIT HYDROGRAPH AND EFFECTIVE RAIN CALCULATION SHEET BY: AMG DATE: 8/22/18 JOB #: 201801214 [1] CONCENTRATION POINT 1 [2] AREA DESIGNATION A PRECONSTRUCTION [3] DRAINAGE AREA - ACRES 1.2500 [4] ULTIMATE DISCHARGE-CFS-HRS/IN (645*[3]N/A [5] UNIT TIME - MINUTES 15 [6] LAG TIME-MINUTES 1.11 [7] UNIT TIME - PERCENT OF LAG (100*[5]/[6])N/A [8] S-CURVE DESERT [9] STORM FREQUENCY & DURATION 10YR 24HR [10] TOTAL ADJUSTED STORM RAIN-INCHES 2.3 [11] VARIABLE LOSS RATE (AVG) - INCHES/HOU 0.004339722 [12] MINIMUM LOSS RATE (FOR VAR. LOSS)-IN/HR 0.234345 [13] CONSTANT LOSS RATE - INCHES PER HOU -[14] LOW LOSS RATE-PERCENT 90 UNIT HYDROGRAPH [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] UNIT TIME CULMULATIVE DISTRIB. UNIT PATTERN STORM LOSS EFFECTIVE FLOW TIME PERCENT AVERAGE GRAPH HYDROGRAPH PERCENT RAIN RATE RAIN CFS PERIOD OF LAG PERCENT OF PERCENT CFS-HRS/IN (PL E-5.9) IN/HR IN/HR IN/HR m [7]*[15] ULTIMATE [17]m- [4]*[18]60[10][20][21]-[22] DISCHARGE [17]m-1 100 100[5] MAX LOW (S-GRAPH) 37 1.90 0.175 0.519 0.157 0.017 0.022 38 2.00 0.184 0.512 0.166 0.018 0.023 39 2.10 0.193 0.505 0.174 0.019 0.024 40 2.20 0.202 0.497 0.182 0.020 0.025 41 1.50 0.138 0.490 0.124 0.014 0.017 42 1.50 0.138 0.483 0.124 0.014 0.017 43 2.00 0.184 0.476 0.166 0.018 0.023 44 2.00 0.184 0.469 0.166 0.018 0.023 45 1.90 0.175 0.462 0.157 0.017 0.022 46 1.90 0.175 0.455 0.157 0.017 0.022 47 1.70 0.156 0.449 0.141 0.016 0.020 48 1.80 0.166 0.442 0.149 0.017 0.021 49 2.50 0.230 0.435 0.207 0.023 0.029 50 2.60 0.239 0.429 0.215 0.024 0.030 51 2.80 0.258 0.422 0.232 0.026 0.032 52 2.90 0.267 0.416 0.240 0.027 0.033 53 3.40 0.313 0.410 0.282 0.031 0.039 54 3.40 0.313 0.403 0.282 0.031 0.039 55 2.30 0.212 0.397 0.190 0.021 0.026 56 2.30 0.212 0.391 0.190 0.021 0.026 57 2.70 0.248 0.385 0.224 0.025 0.031 58 2.60 0.239 0.379 0.215 0.024 0.030 59 2.60 0.239 0.374 0.215 0.024 0.030 60 2.50 0.230 0.368 0.207 0.023 0.029 61 2.40 0.221 0.362 0.199 0.022 0.028 62 2.30 0.212 0.357 0.190 0.021 0.026 63 1.90 0.175 0.351 0.157 0.017 0.022 64 1.90 0.175 0.346 0.157 0.017 0.022 65 0.40 0.037 0.341 0.033 0.004 0.005 66 0.40 0.037 0.335 0.033 0.004 0.005 67 0.30 0.028 0.330 0.025 0.003 0.003 68 0.30 0.028 0.325 0.025 0.003 0.003 69 0.50 0.046 0.320 0.041 0.005 0.006 70 0.50 0.046 0.316 0.041 0.005 0.006 71 0.50 0.046 0.311 0.041 0.005 0.006 72 0.40 0.037 0.306 0.033 0.004 0.005 64 OF 144 RCFC &WCD'S SYNTHETIC UNIT HYDROGRAPH METHOD PROJECT: CAL. ART UNIT HYDROGRAPH AND EFFECTIVE RAIN CALCULATION SHEET BY: AMG DATE: 8/22/18 JOB #: 201801214 [1] CONCENTRATION POINT 1 [2] AREA DESIGNATION A PRECONSTRUCTION [3] DRAINAGE AREA - ACRES 1.2500 [4] ULTIMATE DISCHARGE-CFS-HRS/IN (645*[3]N/A [5] UNIT TIME - MINUTES 15 [6] LAG TIME-MINUTES 1.11 [7] UNIT TIME - PERCENT OF LAG (100*[5]/[6])N/A [8] S-CURVE DESERT [9] STORM FREQUENCY & DURATION 10YR 24HR [10] TOTAL ADJUSTED STORM RAIN-INCHES 2.3 [11] VARIABLE LOSS RATE (AVG) - INCHES/HOU 0.004339722 [12] MINIMUM LOSS RATE (FOR VAR. LOSS)-IN/HR 0.234345 [13] CONSTANT LOSS RATE - INCHES PER HOU 0.18 [14] LOW LOSS RATE-PERCENT 90 UNIT HYDROGRAPH [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] UNIT TIME CULMULATIVE DISTRIB. UNIT PATTERN STORM LOSS EFFECTIVE FLOW TIME PERCENT AVERAGE GRAPH HYDROGRAPH PERCENT RAIN RATE RAIN CFS PERIOD OF LAG PERCENT OF PERCENT CFS-HRS/IN (PL E-5.9) IN/HR IN/HR IN/HR m [7]*[15] ULTIMATE [17]m- [4]*[18]60[10][20][21]-[22] DISCHARGE [17]m-1 100 100[5] MAX LOW (S-GRAPH) 73 0.40 0.037 0.302 0.033 0.004 0.005 74 0.40 0.037 0.297 0.033 0.004 0.005 75 0.30 0.028 0.293 0.025 0.003 0.003 76 0.20 0.018 0.289 0.017 0.002 0.002 77 0.30 0.028 0.285 0.025 0.003 0.003 78 0.40 0.037 0.281 0.033 0.004 0.005 79 0.30 0.028 0.277 0.025 0.003 0.003 80 0.20 0.018 0.273 0.017 0.002 0.002 81 0.30 0.028 0.270 0.025 0.003 0.003 82 0.30 0.028 0.266 0.025 0.003 0.003 83 0.30 0.028 0.263 0.025 0.003 0.003 84 0.20 0.018 0.260 0.017 0.002 0.002 85 0.30 0.028 0.257 0.025 0.003 0.003 86 0.20 0.018 0.254 0.017 0.002 0.002 87 0.30 0.028 0.251 0.025 0.003 0.003 88 0.20 0.018 0.248 0.017 0.002 0.002 89 0.30 0.028 0.246 0.025 0.003 0.003 90 0.20 0.018 0.244 0.017 0.002 0.002 91 0.20 0.018 0.241 0.017 0.002 0.002 92 0.20 0.018 0.240 0.017 0.002 0.002 93 0.20 0.018 0.238 0.017 0.002 0.002 94 0.20 0.018 0.236 0.017 0.002 0.002 95 0.20 0.018 0.235 0.017 0.002 0.002 96 0.20 0.018 0.235 0.017 0.002 0.002 Σ=100%Σ= 0.920 0.92 IN/HR*0.25=0.23 " 0.23 " * 0.0833 * 1.2500 ACRES= 0.0240 AC FT= 1043.6 CF 65 OF 144 PROJECT: CAL. ART BY: AMG 10YR 24HR DATE: 8/22/18 JOB #: 201801214 0 20 40 60 80 100 120 5305580105130155180210260310360420550800DISCHARGE IN PERCENT OF ULTIMATE DISCHARGE (K)TIME IN PERCENT OF LAG S-CURVE DESERT AREA 0.00 0.01 0.01 0.02 0.02 0.03 0.03 0.04 1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67 70 73 76 79 82 85 88 91 94IN/HRPERIOD (15 MIN) RAINFALL INTENSITY (IN/HR) 66 OF 144 RCFC &WCD'S SYNTHETIC UNIT HYDROGRAPH METHOD PROJECT: CAL. ART BASIC DATA CALCULATION FORM BY: AMG DATE: 8/22/18 JOB #: 201801214 [1] CONCENTRATION POINT 1 [2] AREA DESIGNATION A PRE CONSTRUCTION [3] AREA - SQ INCHES - [4] AREA ADJUSTMENT FACTOR - [5] AREA ACRES 1.2500 [6] L-INCHES 0.66 [7]L-ADJUSTMENT FACTOR 0.66 [8]L-MILES ( [6]*[7] ) 0.073 [9] LCA - INCHES - [10]LCA - MILES ( [7]*[9] ) 0.018 [11] ELEVATION OF HEADWATER 62.00 [12] ELEVATION OF CONCENTRATION POINT 1.32 [13] H- FEET ( [11]-[12] ) 60.68 [14] S - FEET/MILE ( [13/[8] ) 832.18 [15] S**0.5 28.85 [16] L*LCA/S**.5 ( [8]*[10]/[15] ) 0.00005 [17] AVERAGE MANNING "N" 0.02 [18] LAG TIME - HOURS ( 24*[17]*[16]**0.38 ) (PLATE E-3) 0.0170046 [19] LAG TIME - MINUTES ( 60*[18] ) 1.02 [20] 25% OF LAG TIME ( 0.25*[19] ) 0.26 [21] 40% OF LAG TIME ( 0.40*[19] ) 0.41 [22] UNIT TIME - MINUTES ( 25-[21] ) 24.59 `` RAINFALL DATA [1] SOURCE RCFCWCD [2] FREQUENCY - YEARS 100YR 1HR [3] DURATION: 1 HOUR [4] [5] [6] [7] POINT AREA [5]AVG. RAIN SQ Σ [5] POINT INCHES INCHES RAIN IN. 1.58 - - 1.58 Σ [5]=-Σ [7]= 1.58 [16] AREAL ADJ FACTOR 1 [17] ADJ.AVG.POINT RAIN 1.58 67 OF 144 68 OF 144 RCFC &WCD'S SYNTHETIC UNIT HYDROGRAPH METHOD PROJECT: CAL. ART UNIT HYDROGRAPH AND EFFECTIVE RAIN CALCULATION SHEET BY: AMG DATE: 8/22/18 JOB #: 201801214 [1] CONCENTRATION POINT 1 [2] AREA DESIGNATION A PRE CONSTRUCTION [3] DRAINAGE AREA - ACRES 1.2500 [4] ULTIMATE DISCHARGE-CFS-HRS/IN (645*[3]N/A [5] UNIT TIME - MINUTES 3.33 [6] LAG TIME-MINUTES 1.02 [7] UNIT TIME - PERCENT OF LAG (100*[5]/[6])N/A [8] S-CURVE DESERT [9] STORM FREQUENCY & DURATION 100YR 1HR [10] TOTAL ADJUSTED STORM RAIN-INCHES 1.58 [11] VARIABLE LOSS RATE (AVG) - IN/HR 0 [12] MINIMUM LOSS RATE (FOR VAR. LOSS)-IN/HR 0 [13] CONSTANT LOSS RATE - IN/HR 0.234345 [14] LOW LOSS RATE-PERCENT 90 UNIT HYDROGRAPH [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] UNIT TIME CULMULATIVE DISTRIB. UNIT PATTERN STORM LOSS EFFECTIVE FLOW TIME PERCENT AVERAGE GRAPH HYDROGRAPH PERCENT RAIN RATE RAIN CFS PERIOD OF LAG PERCENT OF PERCENT CFS-HRS/IN (PL E-5.9) IN/HR IN/HR IN/HR m [7]*[15] ULTIMATE [17]m- [4]*[18]60[10][20][21]-[22] DISCHARGE [17]m-1 100 100[5] MAX LOW (S-GRAPH) 1 17.76 5.056 0.23 - 4.822 6.03 2 14.82 4.219 0.23 - 3.985 4.98 3 11.24 3.198 0.23 - 2.964 3.71 4 8.99 2.559 0.23 - 2.324 2.91 5 4.41 1.256 0.23 - 1.021 1.28 6 4.24 1.206 0.23 - 0.971 1.21 7 4.06 1.155 0.23 - 0.921 1.15 8 3.88 1.105 0.23 - 0.871 1.09 9 3.71 1.055 0.23 - 0.820 1.03 10 3.53 1.005 0.23 - 0.770 0.96 11 3.39 0.964 0.23 - 0.729 0.91 12 3.24 0.923 0.23 - 0.688 0.86 13 3.10 0.882 0.23 - 0.647 0.81 14 2.95 0.841 0.23 - 0.606 0.76 15 2.81 0.800 0.23 - 0.565 0.71 16 43334.00 2.72 0.774 0.23 - 0.540 0.67 17 2.63 0.749 0.23 - 0.514 0.64 18 2.54 0.723 0.23 - 0.489 0.61 Σ=100%Σ= 24.25 24.25 IN/HR*0.06= 1.35 " 1.35 " * 0.0833 * 1.2500 ACRES= 0.1402 AC FT= 6106.827 CF 69 OF 144 PROJECT: CAL. ART BY: AMG 100 YR / 1 HR DATE: 8/22/18 JOB #: 201801214 0.00 1.00 2.00 3.00 4.00 5.00 6.00 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18IN/HRPERIODS IN 10 MINUTE INCREMENTS RAINFALL INTENSITY (IN/HR) 0 20 40 60 80 100 120 DISCHARGE IN PERCENT OF ULTIMATE DISCHARGE (K)TIME IN PERCENT OF LAG S-CURVE DESERT AREA 70 OF 144 RCFC &WCD'S SYNTHETIC UNIT HYDROGRAPH METHOD PROJECT: CAL. ART BASIC DATA CALCULATION FORM BY: AMG DATE: 8/22/18 JOB #: 201801214 [1] CONCENTRATION POINT 1 [2] AREA DESIGNATION A PRECONSTRUCTION [3] AREA - SQ INCHES - [4] AREA ADJUSTMENT FACTOR - [5] AREA ACRES 1.2500 [6] L-INCHES 0.66 [7]L-ADJUSTMENT FACTOR 0.66 [8]L-MILES ( [6]*[7] ) 0.073 [9] LCA - INCHES - [10]LCA - MILES ( [7]*[9] ) 0.018 [11] ELEVATION OF HEADWATER 62.00 [12] ELEVATION OF CONCENTRATION POINT 1.32 [13] H- FEET ( [11]-[12] ) 60.68 [14] S - FEET/MILE ( [13/[8] ) 832.18 [15] S**0.5 28.85 [16] L*LCA/S**.5 ( [8]*[10]/[15] ) 0.00005 [17] AVERAGE MANNING "N" 0.025 [18] LAG TIME - HOURS ( 24*[17]*[16]**0.38 ) (PLATE E-3) 0.0185094 [19] LAG TIME - MINUTES ( 60*[18] ) 1.11 [20] 25% OF LAG TIME ( 0.25*[19] ) 0.28 [21] 40% OF LAG TIME ( 0.40*[19] ) 0.44 [22] UNIT TIME - MINUTES ( 25-[21] ) 24.56 `` RAINFALL DATA [1] SOURCE RCFCWCD [2] FREQUENCY - YEARS 100YR 3HR [3] DURATION: 3 HOUR 6 HOUR 24 HOUR [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] POINT AREA [5]AVG. POINT AREA [9]AVG. POINT AREA [13]AVG. RAIN SQ Σ [5] POINT RAIN SQ Σ [9] POINT RAIN SQ Σ [13] POINT INCHES INCHES RAIN IN. INCHES INCHES RAIN IN. INCHES INCHES RAIN IN. 2.23 - - 2.23 2.82 - - 2.82 4.51 - - 4.51 Σ [5]=-Σ [7]= 2.23 Σ [9]=-Σ [11]= 2.82 Σ [13]=-Σ [15]= 4.51 [16] AREAL ADJ FACTOR 1 (SEE PLATE E-5.8)11 [17] ADJ.AVG.POINT RAIN 2.23 ([16]* Σ [7],ETC)2.82 4.51 71 OF 144 72 OF 144 RCFC &WCD'S SYNTHETIC UNIT HYDROGRAPH METHOD PROJECT: CAL. ART UNIT HYDROGRAPH AND EFFECTIVE RAIN CALCULATION SHEET BY: AMG DATE: 8/22/18 JOB #: 201801214 [1] CONCENTRATION POINT 1 [2] AREA DESIGNATION A PRECONSTRUCTION [3] DRAINAGE AREA - ACRES 1.2500 [4] ULTIMATE DISCHARGE-CFS-HRS/IN (645*[3]N/A [5] UNIT TIME - MINUTES 10 [6] LAG TIME-MINUTES 1.11 [7] UNIT TIME - PERCENT OF LAG (100*[5]/[6])N/A [8] S-CURVE DESERT [9] STORM FREQUENCY & DURATION 100YR 3HR [10] TOTAL ADJUSTED STORM RAIN-INCHES 2.23 [11] VARIABLE LOSS RATE (AVG) - INCHES/HOUR 0 [12] MINIMUM LOSS RATE (FOR VAR. LOSS)-IN/HR 0 [13] CONSTANT LOSS RATE - INCHES PER HOUR 0.234345 [14] LOW LOSS RATE-PERCENT 90 UNIT HYDROGRAPH [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] UNIT TIME CULMULATIVE DISTRIB. UNIT PATTERN STORM LOSS EFFECTIVE FLOW TIME PERCENT AVERAGE GRAPH HYDROGRAPH PERCENT RAIN RATE RAIN CFS PERIOD OF LAG PERCENT OF PERCENT CFS-HRS/IN (PL E-5.9) IN/HR IN/HR IN/HR m [7]*[15] ULTIMATE [17]m- [4]*[18]60[10][20][21]-[22] DISCHARGE [17]m-1 100 100[5] MAX LOW (S-GRAPH) 1 2.60 0.348 0.23 - 0.114 0.14 2 2.60 0.348 0.23 - 0.114 0.14 3 3.30 0.442 0.23 - 0.207 0.26 4 3.30 0.442 0.23 - 0.207 0.26 5 3.30 0.442 0.23 - 0.207 0.26 6 3.40 0.455 0.23 - 0.221 0.28 7 4.40 0.589 0.23 - 0.354 0.44 8 4.20 0.562 0.23 - 0.328 0.41 9 5.30 0.709 0.23 - 0.475 0.59 10 5.10 0.682 0.23 - 0.448 0.56 11 6.40 0.856 0.23 - 0.622 0.78 12 5.90 0.789 0.23 - 0.555 0.69 13 7.30 0.977 0.23 - 0.742 0.93 14 8.50 1.137 0.23 - 0.903 1.13 15 14.10 1.887 0.23 - 1.652 2.07 16 43334.00 14.10 1.887 0.23 - 1.652 2.07 17 3.80 0.508 0.23 - 0.274 0.34 18 2.40 0.321 0.23 - 0.087 0.11 Σ=100%Σ= 9.16 9.16 IN/HR*0.17= 1.53 " 1.53 " * 0.0833 * 1.2500 ACRES= 0.1591 AC FT= 6928.601 CF 73 OF 144 PROJECT: CAL. ART BY: AMG 100 YR / 3 HR DATE: 8/22/18 JOB #: 201801214 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 123456789101112131415161718IN/HRPERIOD IN 10 MIN. INCREMENTS RAINFALL INTENSITY (IN/HR) 0 20 40 60 80 100 120 DISCHARGE IN PERCENT OF ULTIMATE DISCHARGE (K)TIME IN PERCENT OF LAG S-CURVE DESERT AREA 74 OF 144 RCFC &WCD'S SYNTHETIC UNIT HYDROGRAPH METHOD PROJECT: CAL. ART BASIC DATA CALCULATION FORM BY: AMG DATE: 8/22/18 JOB #: 201801214 [1] CONCENTRATION POINT 1 [2] AREA DESIGNATION A PRECONSTRUCTION [3] AREA - SQ INCHES - [4] AREA ADJUSTMENT FACTOR - [5] AREA ACRES 1.2500 [6] L-INCHES 0.66 [7]L-ADJUSTMENT FACTOR 0.66 [8]L-MILES ( [6]*[7] ) 0.073 [9] LCA - INCHES - [10]LCA - MILES ( [7]*[9] ) 0.018 [11] ELEVATION OF HEADWATER 62.00 [12] ELEVATION OF CONCENTRATION POINT 1.32 [13] H- FEET ( [11]-[12] ) 60.68 [14] S - FEET/MILE ( [13/[8] ) 832.18 [15] S**0.5 28.85 [16] L*LCA/S**.5 ( [8]*[10]/[15] ) 0.00005 [17] AVERAGE MANNING "N" 0.025 [18] LAG TIME - HOURS ( 24*[17]*[16]**0.38 ) (PLATE E-3) 0.018509397 [19] LAG TIME - MINUTES ( 60*[18] ) 1.11 [20] 25% OF LAG TIME ( 0.25*[19] ) 0.28 [21] 40% OF LAG TIME ( 0.40*[19] ) 0.44 [22] UNIT TIME - MINUTES ( 25-[21] ) 24.56 `` RAINFALL DATA [1] SOURCE RCFCWCD [2] FREQUENCY - YEARS 100YR 6HR [3] DURATION: 3 HOUR 6 HOUR 24 HOUR [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] POINT AREA [5]AVG. POINT AREA [9]AVG. POINT AREA [13]AVG. RAIN SQ Σ [5] POINT RAIN SQ Σ [9] POINT RAIN SQ Σ [13] POINT INCHES INCHES RAIN IN. INCHES INCHES RAIN IN. INCHES INCHES RAIN IN. 2.23 - - 2.23 2.82 - - 2.82 4.51 - - 4.51 Σ [5]=15.45 Σ [7]= 2.23 Σ [9]=19.7 Σ [11]= 2.82 Σ [13]=19.7 Σ [15]= 4.51 [16] AREAL ADJ FACTOR 1 (SEE PLATE E-5.8)11 [17] ADJ.AVG.POINT RAIN 2.23 ([16]* Σ [7],ETC)2.82 4.51 75 OF 144 76 OF 144 RCFC &WCD'S SYNTHETIC UNIT HYDROGRAPH METHOD PROJECT: CAL. ART UNIT HYDROGRAPH AND EFFECTIVE RAIN CALCULATION SHEET BY: AMG DATE: 8/22/18 JOB #: 201801214 [1] CONCENTRATION POINT 1 [2] AREA DESIGNATION A PRECONSTRUCTION [3] DRAINAGE AREA - ACRES 1.2500 [4] ULTIMATE DISCHARGE-CFS-HRS/IN (645*[3]N/A [5] UNIT TIME - MINUTES 15 [6] LAG TIME-MINUTES 1.11 [7] UNIT TIME - PERCENT OF LAG (100*[5]/[6])N/A [8] S-CURVE DESERT [9] STORM FREQUENCY & DURATION 100YR 6HR [10] TOTAL ADJUSTED STORM RAIN-INCHES 2.82 [11] VARIABLE LOSS RATE (AVG) - INCHES/HOUR 0 [12] MINIMUM LOSS RATE (FOR VAR. LOSS)-IN/HR 0 [13] CONSTANT LOSS RATE - INCHES PER HOUR 0.234345 [14] LOW LOSS RATE-PERCENT 90 UNIT HYDROGRAPH [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] UNIT TIME CULMULATIVE DISTRIB. UNIT PATTERN STORM LOSS EFFECTIVE FLOW TIME PERCENT AVERAGE GRAPH HYDROGRAPH PERCENT RAIN RATE RAIN CFS PERIOD OF LAG PERCENT OF PERCENT CFS-HRS/IN (PL E-5.9) IN/HR IN/HR IN/HR m [7]*[15] ULTIMATE [17]m- [4]*[18]60[10][20][21]-[22] DISCHARGE [17]m-1 100 100[5] MAX LOW (S-GRAPH) 1 1.70 0.192 0.23 - 0.019 0.02 2 1.90 0.214 0.23 - 0.021 0.03 3 2.10 0.237 0.23 - 0.003 0.00 4 2.20 0.248 0.23 - 0.014 0.02 5 2.40 0.271 0.23 - 0.036 0.05 6 2.40 0.271 0.23 - 0.036 0.05 7 2.40 0.271 0.23 - 0.036 0.05 8 2.50 0.282 0.23 - 0.048 0.06 9 2.60 0.293 0.23 - 0.059 0.07 10 2.70 0.305 0.23 - 0.070 0.09 11 2.80 0.316 0.23 - 0.081 0.10 12 3.00 0.338 0.23 - 0.104 0.13 13 3.20 0.361 0.23 - 0.127 0.16 14 3.60 0.406 0.23 - 0.172 0.21 15 4.30 0.485 0.23 - 0.251 0.31 16 43334.00 4.70 0.530 0.23 - 0.296 0.37 17 5.40 0.609 0.23 - 0.375 0.47 18 6.20 0.699 0.23 - 0.465 0.58 19 6.90 0.846 0.23 - 0.612 0.76 20 7.50 1.196 0.23 - 0.961 1.20 21 10.60 1.636 0.23 - 1.401 1.75 22 14.50 0.384 0.23 - 0.149 0.19 23 3.40 0.113 0.23 - 0.011 0.01 24 1.00 0.113 0.23 - 0.011 0.01 Σ=100%Σ= 5.36 5.36 IN/HR*0.25= 1.3398 " 1.3398 " * 0.083 * 1.2500 ACRES= 0.1396 AC FT= 6079.19 CF 77 OF 144 PROJECT: CAL. ART BY: AMG DATE: 8/22/18 100 YR / 6 HR JOB #: 201801214 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 123456789101112131415161718192021222324IN/HRPERIOD IN 15 MIN. INCREMENTS RAINFALL INTENSITY (IN/HR) 0 20 40 60 80 100 120 DISCHARGE IN PERCENT OF ULTIMATE DISCHARGE (K)TIME IN PERCENT OF LAG S-CURVE DESERT AREA 78 OF 144 RCFC &WCD'S SYNTHETIC UNIT HYDROGRAPH METHOD PROJECT: CAL. ART BASIC DATA CALCULATION FORM BY: AMG DATE: 8/22/18 JOB #: 201801214 [1] CONCENTRATION POINT 1 [2] AREA DESIGNATION A PRECONSTRUCTION [3] AREA - SQ INCHES - [4] AREA ADJUSTMENT FACTOR - [5] AREA ACRES 1.2500 [6] L-INCHES 0.66 [7]L-ADJUSTMENT FACTOR 0.66 [8]L-MILES ( [6]*[7] ) 0.073 [9] LCA - INCHES - [10]LCA - MILES ( [7]*[9] ) 0.018 [11] ELEVATION OF HEADWATER 62.00 [12] ELEVATION OF CONCENTRATION POINT 1.32 [13] H- FEET ( [11]-[12] ) 60.68 [14] S - FEET/MILE ( [13/[8] ) 832.18 [15] S**0.5 28.85 [16] L*LCA/S**.5 ( [8]*[10]/[15] ) 0.00005 [17] AVERAGE MANNING "N" 0.025 [18] LAG TIME - HOURS ( 24*[17]*[16]**0.38 ) (PLATE E-3) 0.018509397 [19] LAG TIME - MINUTES ( 60*[18] ) 1.11 [20] 25% OF LAG TIME ( 0.25*[19] ) 0.28 [21] 40% OF LAG TIME ( 0.40*[19] ) 0.44 [22] UNIT TIME - MINUTES ( 25-[21] ) 24.56 `` RAINFALL DATA [1] SOURCE RCFCWCD [2] FREQUENCY - YEARS 100YR 24HR [3] DURATION: 3 HOUR 6 HOUR 24 HOUR [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] POINT AREA [5]AVG. POINT AREA [9]AVG. POINT AREA [13]AVG. RAIN SQ Σ [5] POINT RAIN SQ Σ [9] POINT RAIN SQ Σ [13] POINT INCHES INCHES RAIN IN. INCHES INCHES RAIN IN. INCHES INCHES RAIN IN. 2.23 - - 2.23 2.82 - - 2.82 4.51 - - 4.51 Σ [5]=-Σ [7]= 2.23 Σ [9]=-Σ [11]= 2.82 Σ [13]=-Σ [15]= 4.51 [16] AREAL ADJ FACTOR 1 (SEE PLATE E-5.8)11 [17] ADJ.AVG.POINT RAIN 2.23 ([16]* Σ [7],ETC)2.82 4.51 79 OF 144 80 OF 144 RCFC &WCD'S SYNTHETIC UNIT HYDROGRAPH METHOD PROJECT: CAL. ART UNIT HYDROGRAPH AND EFFECTIVE RAIN CALCULATION SHEET BY: AMG DATE: 8/22/18 JOB #: 201801214 [1] CONCENTRATION POINT 1 [2] AREA DESIGNATION A PRECONSTRUCTION [3] DRAINAGE AREA - ACRES 2.2090 [4] ULTIMATE DISCHARGE-CFS-HRS/IN (645*[3]N/A [5] UNIT TIME - MINUTES 15 [6] LAG TIME-MINUTES 1.11 [7] UNIT TIME - PERCENT OF LAG (100*[5]/[6])N/A [8] S-CURVE DESERT [9] STORM FREQUENCY & DURATION 100YR 24HR [10] TOTAL ADJUSTED STORM RAIN-INCHES 4.51 [11] VARIABLE LOSS RATE (AVG) - IN/HR 0.00433972 [12] MINIMUM LOSS RATE (FOR VAR. LOSS)-IN/HR 0.234345 [13] CONSTANT LOSS RATE - IN/HR -[14] LOW LOSS RATE-PERCENT 90 UNIT HYDROGRAPH [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] UNIT TIME CULMULATIVE DISTRIB. UNIT PATTERN STORM LOSS EFFECTIVE FLOW TIME PERCENT AVERAGE GRAPH HYDROGRAPH PERCENT RAIN RATE RAIN CFS PERIOD OF LAG PERCENT OF PERCENT CFS-HRS/IN (PL E-5.9) IN/HR IN/HR IN/HR m [7]*[15] ULTIMATE [17]m- [4]*[18]60[10][20][21]-[22] DISCHARGE [17]m-1 100 100[5] MAX LOW (S-GRAPH) 1 0.20 0.036 0.828 0.032 0.00 0.00797 2 0.30 0.054 0.818 0.049 0.01 0.01196 3 0.30 0.054 0.808 0.049 0.01 0.01196 4 0.40 0.072 0.799 0.065 0.01 0.01594 5 0.30 0.054 0.790 0.049 0.01 0.01196 6 0.30 0.054 0.780 0.049 0.01 0.01196 7 0.30 0.054 0.771 0.049 0.01 0.01196 8 0.40 0.072 0.762 0.065 0.01 0.01594 9 0.40 0.072 0.752 0.065 0.01 0.01594 10 0.40 0.072 0.743 0.065 0.01 0.01594 11 0.50 0.090 0.734 0.081 0.01 0.01993 12 0.50 0.090 0.725 0.081 0.01 0.01993 13 0.50 0.090 0.716 0.081 0.01 0.01993 14 0.50 0.090 0.707 0.081 0.01 0.01993 15 0.50 0.090 0.698 0.081 0.01 0.01993 16 ######0.60 0.108 0.690 0.097 0.01 0.02391 17 0.60 0.108 0.681 0.097 0.01 0.02391 18 0.70 0.126 0.672 0.114 0.01 0.02790 19 0.70 0.126 0.664 0.114 0.01 0.02790 20 0.80 0.144 0.655 0.130 0.01 0.03188 21 0.60 0.108 0.647 0.097 0.01 0.02391 22 0.70 0.126 0.638 0.114 0.01 0.02790 23 0.80 0.144 0.630 0.130 0.01 0.03188 24 0.80 0.144 0.621 0.130 0.01 0.03188 25 0.90 0.162 0.613 0.146 0.02 0.03587 26 0.90 0.162 0.605 0.146 0.02 0.03587 27 1.00 0.180 0.597 0.162 0.02 0.03985 28 1.00 0.180 0.589 0.162 0.02 0.03985 29 1.00 0.180 0.581 0.162 0.02 0.03985 30 1.10 0.198 0.573 0.179 0.02 0.04384 31 1.2 0.216 0.565 0.195 0.02 0.04782 32 1.30 0.235 0.557 0.211 0.02 0.05181 33 1.50 0.271 0.550 0.244 0.03 0.05978 34 1.50 0.271 0.542 0.244 0.03 0.05978 35 1.60 0.289 0.534 0.260 0.03 0.06376 36 1.70 0.307 0.527 0.276 0.03 0.06775 81 OF 144 RCFC &WCD'S SYNTHETIC UNIT HYDROGRAPH METHOD PROJECT: CAL. ART UNIT HYDROGRAPH AND EFFECTIVE RAIN CALCULATION SHEET BY: AMG DATE: 8/22/18 JOB #: 201801214 [1] CONCENTRATION POINT 1 [2] AREA DESIGNATION A PRECONSTRUCTION [3] DRAINAGE AREA - ACRES 1.2500 [4] ULTIMATE DISCHARGE-CFS-HRS/IN (645*[3]N/A [5] UNIT TIME - MINUTES 15 [6] LAG TIME-MINUTES 1.11 [7] UNIT TIME - PERCENT OF LAG (100*[5]/[6])N/A [8] S-CURVE DESERT [9] STORM FREQUENCY & DURATION 100YR 24HR [10] TOTAL ADJUSTED STORM RAIN-INCHES 4.51 [11] VARIABLE LOSS RATE (AVG) - IN/HR 0.00433972 [12] MINIMUM LOSS RATE (FOR VAR. LOSS)-IN/HR 0.234345 [13] CONSTANT LOSS RATE - IN/HR -[14] LOW LOSS RATE-PERCENT 90 UNIT HYDROGRAPH [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] UNIT TIME CULMULATIVE DISTRIB. UNIT PATTERN STORM LOSS EFFECTIVE FLOW TIME PERCENT AVERAGE GRAPH HYDROGRAPH PERCENT RAIN RATE RAIN CFS PERIOD OF LAG PERCENT OF PERCENT CFS-HRS/IN (PL E-5.9) IN/HR IN/HR IN/HR m [7]*[15] ULTIMATE [17]m- [4]*[18]60[10][20][21]-[22] DISCHARGE [17]m-1 100 100[5] MAX LOW (S-GRAPH) 37 1.90 0.343 0.519 0.308 0.03 0.07572 38 2.00 0.361 0.512 0.325 0.04 0.07970 39 2.10 0.379 0.505 0.341 0.04 0.08369 40 2.20 0.397 0.497 0.357 0.04 0.08767 41 1.50 0.271 0.490 0.244 0.03 0.05978 42 1.50 0.271 0.483 0.244 0.03 0.05978 43 2.00 0.361 0.476 0.325 0.04 0.07970 44 2.00 0.361 0.469 0.325 0.04 0.07970 45 1.90 0.343 0.462 0.308 0.03 0.07572 46 1.90 0.343 0.455 0.308 0.03 0.07572 47 1.70 0.307 0.449 0.276 0.03 0.06775 48 1.80 0.325 0.442 0.292 0.03 0.07173 49 2.50 0.451 0.435 0.406 0.02 0.03464 50 2.60 0.469 0.429 0.422 0.04 0.08889 51 2.80 0.505 0.422 0.455 0.08 0.18282 52 2.90 0.523 0.416 0.471 0.11 0.23674 53 3.40 0.613 0.410 0.552 0.20 0.44988 54 3.40 0.613 0.403 0.552 0.21 0.46359 55 2.30 0.415 0.397 0.373 0.02 0.03878 56 2.30 0.415 0.391 0.373 0.02 0.05214 57 2.70 0.487 0.385 0.438 0.10 0.22472 58 2.60 0.469 0.379 0.422 0.09 0.19787 59 2.60 0.469 0.374 0.422 0.10 0.21068 60 2.50 0.451 0.368 0.406 0.08 0.18346 61 2.40 0.433 0.362 0.390 0.07 0.15605 62 2.30 0.415 0.357 0.373 0.06 0.12844 63 1.90 0.343 0.351 0.308 0.03 0.07572 64 1.90 0.343 0.346 0.308 0.03 0.07572 65 0.40 0.072 0.341 0.065 0.01 0.01594 66 0.40 0.072 0.335 0.065 0.01 0.01594 67 0.30 0.054 0.330 0.049 0.01 0.01196 68 0.30 0.054 0.325 0.049 0.01 0.01196 69 0.50 0.090 0.320 0.081 0.01 0.01993 70 0.50 0.090 0.316 0.081 0.01 0.01993 71 0.50 0.090 0.311 0.081 0.01 0.01993 72 0.40 0.072 0.306 0.065 0.01 0.01594 82 OF 144 RCFC &WCD'S SYNTHETIC UNIT HYDROGRAPH METHOD PROJECT: CAL. ART UNIT HYDROGRAPH AND EFFECTIVE RAIN CALCULATION SHEET BY: AMG DATE: 8/22/18 JOB #: 201801214 [1] CONCENTRATION POINT 1 [2] AREA DESIGNATION A PRECONSTRUCTION [3] DRAINAGE AREA - ACRES 1.2500 [4] ULTIMATE DISCHARGE-CFS-HRS/IN (645*[3]N/A [5] UNIT TIME - MINUTES 15 [6] LAG TIME-MINUTES 1.11 [7] UNIT TIME - PERCENT OF LAG (100*[5]/[6])N/A [8] S-CURVE DESERT [9] STORM FREQUENCY & DURATION 100YR 24HR [10] TOTAL ADJUSTED STORM RAIN-INCHES 4.51 [11] VARIABLE LOSS RATE (AVG) - IN/HR [12] MINIMUM LOSS RATE (FOR VAR. LOSS)-IN/HR 0.234345 [13] CONSTANT LOSS RATE - IN/HR -[14] LOW LOSS RATE-PERCENT 90 UNIT HYDROGRAPH [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] UNIT TIME CULMULATIVE DISTRIB. UNIT PATTERN STORM LOSS EFFECTIVE FLOW TIME PERCENT AVERAGE GRAPH HYDROGRAPH PERCENT RAIN RATE RAIN CFS PERIOD OF LAG PERCENT OF PERCENT CFS-HRS/IN (PL E-5.9) IN/HR IN/HR IN/HR m [7]*[15] ULTIMATE [17]m- [4]*[18]60[10][20][21]-[22] DISCHARGE [17]m-1 100 100[5] MAX LOW (S-GRAPH) 73 0.40 0.072 0.302 0.065 0.01 0.01594 74 0.40 0.072 0.297 0.065 0.01 0.01594 75 0.30 0.054 0.293 0.049 0.01 0.01196 76 0.20 0.036 0.289 0.032 0.00 0.00797 77 0.30 0.054 0.285 0.049 0.01 0.01196 78 0.40 0.072 0.281 0.065 0.01 0.01594 79 0.30 0.054 0.277 0.049 0.01 0.01196 80 0.20 0.036 0.273 0.032 0.00 0.00797 81 0.30 0.054 0.270 0.049 0.01 0.01196 82 0.30 0.054 0.266 0.049 0.01 0.01196 83 0.30 0.054 0.263 0.049 0.01 0.01196 84 0.20 0.036 0.260 0.032 0.00 0.00797 85 0.30 0.054 0.257 0.049 0.01 0.01196 86 0.20 0.036 0.254 0.032 0.00 0.00797 87 0.30 0.054 0.251 0.049 0.01 0.01196 88 0.20 0.036 0.248 0.032 0.00 0.00797 89 0.30 0.054 0.246 0.049 0.01 0.01196 90 0.20 0.036 0.244 0.032 0.00 0.00797 91 0.20 0.036 0.241 0.032 0.00 0.00797 92 0.20 0.036 0.240 0.032 0.00 0.00797 93 0.20 0.036 0.238 0.032 0.00 0.00797 94 0.20 0.036 0.236 0.032 0.00 0.00797 95 0.20 0.036 0.235 0.032 0.00 0.00797 96 0.20 0.036 0.235 0.032 0.00 0.00797 Σ=100%Σ= 2.330 2.33 IN/HR*0.25=0.58 " 0.58 " * 0.083 * 1.2500 ACRES= 0.0607 AC FT= 2643.26 CF 83 OF 144 PROJECT: CAL. ART BY: AMG 100 YR / 24 HR DATE: 8/22/18 JOB #: 201801214 0.00 0.05 0.10 0.15 0.20 0.25 1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67 70 73 76 79 82 85 88 91 94IN/HRPERIOD IN 15 MIN. INCREMENTS RAINFALL INTENSITY (IN/HR) 0 20 40 60 80 100 120 DISCHARGE IN PERCENT OF ULTIMATE DISCHARGE (K)TIME IN PERCENT OF LAG S-CURVE DESERT AREA 84 OF 144 RCFC &WCD'S SYNTHETIC UNIT HYDROGRAPH METHOD PROJECT: CAL. ART BASIC DATA CALCULATION FORM BY: AMG DATE: 8/22/18 JOB #: 201801214 [1] CONCENTRATION POINT 1 [2] AREA DESIGNATION A POST CONSTRUCTION [3] AREA - SQ INCHES - [4] AREA ADJUSTMENT FACTOR - [5] AREA ACRES 1.2500 [6] L-INCHES 0.66 [7]L-ADJUSTMENT FACTOR 0.66 [8]L-MILES ( [6]*[7] ) 0.073 [9] LCA - INCHES - [10]LCA - MILES ( [7]*[9] ) 0.018 [11] ELEVATION OF HEADWATER 62.00 [12] ELEVATION OF CONCENTRATION POINT 1.32 [13] H- FEET ( [11]-[12] ) 60.68 [14] S - FEET/MILE ( [13/[8] ) 832.18 [15] S**0.5 28.85 [16] L*LCA/S**.5 ( [8]*[10]/[15] ) 0.00005 [17] AVERAGE MANNING "N" 0.02 [18] LAG TIME - HOURS ( 24*[17]*[16]**0.38 ) (PLATE E-3) 0.0170046 [19] LAG TIME - MINUTES ( 60*[18] ) 1.02 [20] 25% OF LAG TIME ( 0.25*[19] ) 0.26 [21] 40% OF LAG TIME ( 0.40*[19] ) 0.41 [22] UNIT TIME - MINUTES ( 25-[21] ) 24.59 `` RAINFALL DATA [1] SOURCE RCFCWCD [2] FREQUENCY - YEARS 2YR 24HR [3] DURATION: 3 HOUR 6 HOUR 24 HOUR [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] POINT AREA [5]AVG. POINT AREA [9]AVG. POINT AREA [13]AVG. RAIN SQ Σ [5] POINT RAIN SQ Σ [9] POINT RAIN SQ Σ [13] POINT INCHES INCHES RAIN IN. INCHES INCHES RAIN IN. INCHES INCHES RAIN IN. ------- -1.19 - - 1.19 Σ [5]=-Σ [7]= -Σ [9]=-Σ [11]= -Σ [13]=-Σ [15]= 1.19 [16] AREAL ADJ FACTOR 1 (SEE PLATE E-5.8)11 [17] ADJ.AVG.POINT RAIN - ([16]* Σ [7],ETC)-1.19 85 OF 144 86 OF 144 RCFC &WCD'S SYNTHETIC UNIT HYDROGRAPH METHOD PROJECT: CAL. ART UNIT HYDROGRAPH AND EFFECTIVE RAIN CALCULATION SHEET BY: AMG DATE: 8/22/18 JOB #: 201801214 [1] CONCENTRATION POINT 1 [2] AREA DESIGNATION A POST CONSTRUCTION [3] DRAINAGE AREA - ACRES 1.2500 [4] ULTIMATE DISCHARGE-CFS-HRS/IN (645*[3]N/A [5] UNIT TIME - MINUTES 15 [6] LAG TIME-MINUTES 1.02 [7] UNIT TIME - PERCENT OF LAG (100*[5]/[6])N/A [8] S-CURVE DESERT [9] STORM FREQUENCY & DURATION 2YR 24HR [10] TOTAL ADJUSTED STORM RAIN-INCHES 1.19 [11] VARIABLE LOSS RATE (AVG) - IN/HR 0.000897222 [12] MINIMUM LOSS RATE (FOR VAR. LOSS)-IN/HR 0.048 [13] CONSTANT LOSS RATE - IN/HR -[14] LOW LOSS RATE-PERCENT 90 UNIT HYDROGRAPH [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] UNIT TIME CULMULATIVE DISTRIB. UNIT PATTERN STORM LOSS EFFECTIVE FLOW TIME PERCENT AVERAGE GRAPH HYDROGRAPH PERCENT RAIN RATE RAIN CFS PERIOD OF LAG PERCENT OF PERCENT CFS-HRS/IN (PL E-5.9) IN/HR IN/HR IN/HR m [7]*[15] ULTIMATE [17]m- [4]*[18]60[10][20][21]-[22] DISCHARGE [17]m-1 100 100[5] MAX LOW (S-GRAPH) 1 0.20 0.010 0.171 0.009 0.001 0.001 2 0.30 0.014 0.169 0.013 0.001 0.002 3 0.30 0.014 0.167 0.013 0.001 0.002 4 0.40 0.019 0.165 0.017 0.002 0.002 5 0.30 0.014 0.163 0.013 0.001 0.002 6 0.30 0.014 0.161 0.013 0.001 0.002 7 0.30 0.014 0.159 0.013 0.001 0.002 8 0.40 0.019 0.157 0.017 0.002 0.002 9 0.40 0.019 0.156 0.017 0.002 0.002 10 0.40 0.019 0.154 0.017 0.002 0.002 11 0.50 0.024 0.152 0.021 0.002 0.003 12 0.50 0.024 0.150 0.021 0.002 0.003 13 0.50 0.024 0.148 0.021 0.002 0.003 14 0.50 0.024 0.146 0.021 0.002 0.003 15 0.50 0.024 0.144 0.021 0.002 0.003 16 43334.00 0.60 0.029 0.143 0.026 0.003 0.004 17 0.60 0.029 0.141 0.026 0.003 0.004 18 0.70 0.033 0.139 0.030 0.003 0.004 19 0.70 0.033 0.137 0.030 0.003 0.004 20 0.80 0.038 0.135 0.034 0.004 0.005 21 0.60 0.029 0.134 0.026 0.003 0.004 22 0.70 0.033 0.132 0.030 0.003 0.004 23 0.80 0.038 0.130 0.034 0.004 0.005 24 0.80 0.038 0.128 0.034 0.004 0.005 25 0.90 0.043 0.127 0.039 0.004 0.005 26 0.90 0.043 0.125 0.039 0.004 0.005 27 1.00 0.048 0.123 0.043 0.005 0.006 28 1.00 0.048 0.122 0.043 0.005 0.006 29 1.00 0.048 0.120 0.043 0.005 0.006 30 1.10 0.052 0.118 0.047 0.005 0.007 31 1.2 0.057 0.117 0.051 0.006 0.007 32 1.30 0.062 0.115 0.056 0.006 0.008 33 1.50 0.071 0.114 0.064 0.007 0.009 34 1.50 0.071 0.112 0.064 0.007 0.009 35 1.60 0.076 0.110 0.069 0.008 0.010 36 1.70 0.081 0.109 0.073 0.008 0.010 87 OF 144 RCFC &WCD'S SYNTHETIC UNIT HYDROGRAPH METHOD PROJECT: CAL. ART UNIT HYDROGRAPH AND EFFECTIVE RAIN CALCULATION SHEET BY: AMG DATE: 8/22/18 JOB #: 201801214 [1] CONCENTRATION POINT 1 [2] AREA DESIGNATION A POST CONSTRUCTION [3] DRAINAGE AREA - ACRES 1.2500 [4] ULTIMATE DISCHARGE-CFS-HRS/IN (645*[3]N/A [5] UNIT TIME - MINUTES 15 [6] LAG TIME-MINUTES 1.02 [7] UNIT TIME - PERCENT OF LAG (100*[5]/[6])N/A [8] S-CURVE DESERT [9] STORM FREQUENCY & DURATION 2YR 24HR [10] TOTAL ADJUSTED STORM RAIN-INCHES 1.19 [11] VARIABLE LOSS RATE (AVG) - INCHES/HOUR 0.000897222 [12] MINIMUM LOSS RATE (FOR VAR. LOSS)-IN/HR 0.04845 [13] CONSTANT LOSS RATE - INCHES PER HOUR -[14] LOW LOSS RATE-PERCENT 90 UNIT HYDROGRAPH [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] UNIT TIME CULMULATIVE DISTRIB. UNIT PATTERN STORM LOSS EFFECTIVE FLOW TIME PERCENT AVERAGE GRAPH HYDROGRAPH PERCENT RAIN RATE RAIN CFS PERIOD OF LAG PERCENT OF PERCENT CFS-HRS/IN (PL E-5.9) IN/HR IN/HR IN/HR m [7]*[15] ULTIMATE [17]m- [4]*[18]60[10][20][21]-[22] DISCHARGE [17]m-1 100 100[5] MAX LOW (S-GRAPH) 37 1.90 0.090 0.107 0.081 0.009 0.011 38 2.00 0.095 0.106 0.086 0.010 0.012 39 2.10 0.100 0.104 0.090 0.010 0.012 40 2.20 0.105 0.103 0.094 0.002 0.002 41 1.50 0.071 0.101 0.064 0.007 0.009 42 1.50 0.071 0.100 0.064 0.007 0.009 43 2.00 0.095 0.098 0.086 0.010 0.012 44 2.00 0.095 0.097 0.086 0.010 0.012 45 1.90 0.090 0.096 0.081 0.009 0.011 46 1.90 0.090 0.094 0.081 0.009 0.011 47 1.70 0.081 0.093 0.073 0.008 0.010 48 1.80 0.086 0.091 0.077 0.009 0.011 49 2.50 0.119 0.090 0.107 0.029 0.036 50 2.60 0.124 0.089 0.111 0.035 0.044 51 2.80 0.133 0.087 0.120 0.046 0.057 52 2.90 0.138 0.086 0.124 0.052 0.065 53 3.40 0.162 0.085 0.146 0.077 0.096 54 3.40 0.162 0.083 0.146 0.078 0.098 55 2.30 0.109 0.082 0.099 0.027 0.034 56 2.30 0.109 0.081 0.099 0.029 0.036 57 2.70 0.129 0.080 0.116 0.049 0.061 58 2.60 0.124 0.078 0.111 0.045 0.057 59 2.60 0.124 0.077 0.111 0.047 0.058 60 2.50 0.119 0.076 0.107 0.043 0.054 61 2.40 0.114 0.075 0.103 0.039 0.049 62 2.30 0.109 0.074 0.099 0.036 0.045 63 1.90 0.090 0.073 0.081 0.018 0.022 64 1.90 0.090 0.072 0.081 0.019 0.024 65 0.40 0.019 0.070 0.017 0.002 0.002 66 0.40 0.019 0.069 0.017 0.002 0.002 67 0.30 0.014 0.068 0.013 0.001 0.002 68 0.30 0.014 0.067 0.013 0.001 0.002 69 0.50 0.024 0.066 0.021 0.002 0.003 70 0.50 0.024 0.065 0.021 0.002 0.003 71 0.50 0.024 0.064 0.021 0.002 0.003 72 0.40 0.019 0.063 0.017 0.002 0.002 88 OF 144 RCFC &WCD'S SYNTHETIC UNIT HYDROGRAPH METHOD PROJECT: CAL. ART UNIT HYDROGRAPH AND EFFECTIVE RAIN CALCULATION SHEET BY: AMG DATE: 8/22/18 JOB #: 201801214 [1] CONCENTRATION POINT 1 [2] AREA DESIGNATION A POST CONSTRUCTION [3] DRAINAGE AREA - ACRES 1.2500 [4] ULTIMATE DISCHARGE-CFS-HRS/IN (645*[3]N/A [5] UNIT TIME - MINUTES 15 [6] LAG TIME-MINUTES 1.02 [7] UNIT TIME - PERCENT OF LAG (100*[5]/[6])N/A [8] S-CURVE DESERT [9] STORM FREQUENCY & DURATION 2YR 24HR [10] TOTAL ADJUSTED STORM RAIN-INCHES 1.19 [11] VARIABLE LOSS RATE (AVG) - INCHES/HOUR 0.000897222 [12] MINIMUM LOSS RATE (FOR VAR. LOSS)-IN/HR 0.04845 [13] CONSTANT LOSS RATE - INCHES PER HOUR 0.18 [14] LOW LOSS RATE-PERCENT 90 UNIT HYDROGRAPH [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] UNIT TIME CULMULATIVE DISTRIB. UNIT PATTERN STORM LOSS EFFECTIVE FLOW TIME PERCENT AVERAGE GRAPH HYDROGRAPH PERCENT RAIN RATE RAIN CFS PERIOD OF LAG PERCENT OF PERCENT CFS-HRS/IN (PL E-5.9) IN/HR IN/HR IN/HR m [7]*[15] ULTIMATE [17]m- [4]*[18]60[10][20][21]-[22] DISCHARGE [17]m-1 100 100[5] MAX LOW (S-GRAPH) 73 0.40 0.019 0.062 0.017 0.002 0.002 74 0.40 0.019 0.061 0.017 0.002 0.002 75 0.30 0.014 0.061 0.013 0.001 0.002 76 0.20 0.010 0.060 0.009 0.001 0.001 77 0.30 0.014 0.059 0.013 0.001 0.002 78 0.40 0.019 0.058 0.017 0.002 0.002 79 0.30 0.014 0.057 0.013 0.001 0.002 80 0.20 0.010 0.057 0.009 0.001 0.001 81 0.30 0.014 0.056 0.013 0.001 0.002 82 0.30 0.014 0.055 0.013 0.001 0.002 83 0.30 0.014 0.054 0.013 0.001 0.002 84 0.20 0.010 0.054 0.009 0.001 0.001 85 0.30 0.014 0.053 0.013 0.001 0.002 86 0.20 0.010 0.052 0.009 0.001 0.001 87 0.30 0.014 0.052 0.013 0.001 0.002 88 0.20 0.010 0.051 0.009 0.001 0.001 89 0.30 0.014 0.051 0.013 0.001 0.002 90 0.20 0.010 0.050 0.009 0.001 0.001 91 0.20 0.010 0.050 0.009 0.001 0.001 92 0.20 0.010 0.050 0.009 0.001 0.001 93 0.20 0.010 0.049 0.009 0.001 0.001 94 0.20 0.010 0.049 0.009 0.001 0.001 95 0.20 0.010 0.049 0.009 0.001 0.001 96 0.20 0.010 0.048 0.009 0.001 0.001 Σ=100%Σ= 0.941 0.00 CF A/G STORAGE 0.94 IN/HR*0.25=0.24 " 6807.02 CF U/G STORAGE 0.24 " * 0.0833 * 1.2500 ACRES= 1066.05 CF PERC LOSS IN 24 HRS 0.0244 AC FT= 1062.8 CF 7873.07 CF PROVIDED 0.00 CF DISCHARGED 539.96 CF DISCHARGES AT PRECONSTRUCTION 89 OF 144 PROJECT: CAL. ART BY: AMG 2 YR / 24 HR DATE: 8/22/18 JOB #: 201801214 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 1 4 7 1013161922252831343740434649525558616467707376798285889194IN/HRPERIOD (15 MIN) RAINFALL INTENSITY (IN/HR) 0 20 40 60 80 100 120 DISCHARGE IN PERCENT OF ULTIMATE DISCHARGE (K)TIME IN PERCENT OF LAG S-CURVE DESERT AREA 90 OF 144 PROJECT: CAL. ART BY: AMG DATE: 8/22/18 JOB #: 201801214 PERC. RATE (IN/HR)=0.00 ACCUM.ADD.PERC.ADD.ADJUSTED ACRE PERIOD VOL.(CF)FLOWS(CF)LOSSES(CF)LOSSES(CF)ACCUM.VOL.(CF)FEET 1 1.08 0.00 0.00 1.08 0.00 0.0000 2 1.62 0.00 0.00 1.62 0.00 0.0000 3 1.62 0.00 0.00 1.62 0.00 0.0000 4 2.16 0.00 0.00 2.16 0.00 0.0000 5 1.62 0.00 0.00 1.62 0.00 0.0000 6 1.62 0.00 0.00 1.62 0.00 0.0000 7 1.62 0.00 0.00 1.62 0.00 0.0000 8 2.16 0.00 0.00 2.16 0.00 0.0000 9 2.16 0.00 0.00 2.16 0.00 0.0000 10 2.16 0.00 0.00 2.16 0.00 0.0000 11 2.70 0.00 0.00 2.70 0.00 0.0000 12 2.70 0.00 0.00 2.70 0.00 0.0000 13 2.70 0.00 0.00 2.70 0.00 0.0000 14 2.70 0.00 0.00 2.70 0.00 0.0000 15 2.70 0.00 0.00 2.70 0.00 0.0000 16 3.24 0.00 0.00 3.24 0.00 0.0000 17 3.24 0.00 0.00 3.24 0.00 0.0000 18 3.78 0.00 0.00 3.78 0.00 0.0000 19 3.78 0.00 0.00 3.78 0.00 0.0000 20 4.32 0.00 0.00 4.32 0.00 0.0000 21 3.24 0.00 0.00 3.24 0.00 0.0000 22 3.78 0.00 0.00 3.78 0.00 0.0000 23 4.32 0.00 0.00 4.32 0.00 0.0000 24 4.32 0.00 0.00 4.32 0.00 0.0000 25 4.86 0.00 0.00 4.86 0.00 0.0000 26 4.86 0.00 0.00 4.86 0.00 0.0000 27 5.40 0.00 0.00 5.40 0.00 0.0000 28 5.40 0.00 0.00 5.40 0.00 0.0000 29 5.40 0.00 0.00 5.40 0.00 0.0000 30 5.94 0.00 0.00 5.94 0.00 0.0000 31 6.48 0.00 0.00 6.48 0.00 0.0000 32 7.02 0.00 0.00 7.02 0.00 0.0000 33 8.10 0.00 0.00 8.10 0.00 0.0000 34 8.10 0.00 0.00 8.10 0.00 0.0000 35 8.64 0.00 0.00 8.64 0.00 0.0000 36 9.18 0.00 0.00 9.18 0.00 0.0000 37 10.26 0.00 0.00 10.26 0.00 0.0000 38 10.80 0.00 0.00 10.80 0.00 0.0000 39 11.34 0.00 0.00 11.34 0.00 0.0000 40 2.15 0.00 0.00 2.15 0.00 0.0000 41 8.10 0.00 0.00 8.10 0.00 0.0000 42 8.10 0.00 0.00 8.10 0.00 0.0000 43 10.80 0.00 0.00 10.80 0.00 0.0000 44 10.80 0.00 0.00 10.80 0.00 0.0000 45 10.26 0.00 0.00 10.26 0.00 0.0000 46 10.26 0.00 0.00 10.26 0.00 0.0000 47 9.18 0.00 0.00 9.18 0.00 0.0000 48 9.72 0.00 0.00 9.72 0.00 0.0000 91 OF 144 PROJECT: CAL. ART BY: AMG DATE: 8/22/18 JOB #: 201801214 PERC. RATE (IN/HR)=0.00 ACCUM.ADD.PERC.ADD.ADJUSTED ACRE PERIOD VOL.(CF)FLOWS(CF)LOSSES(CF)LOSSES(CF)ACCUM.VOL.(CF)FEET 49 32.89 0.00 0.00 32.89 0.00 0.0000 50 39.82 0.00 0.00 39.82 0.00 0.0000 51 52.13 0.00 0.00 52.13 0.00 0.0000 52 59.03 0.00 0.00 59.03 0.00 0.0000 53 87.50 0.00 0.00 87.50 0.00 0.0000 54 88.95 0.00 0.00 88.95 0.00 0.0000 55 31.00 0.00 0.00 31.00 0.00 0.0000 56 32.42 0.00 0.00 32.42 0.00 0.0000 57 55.41 0.00 0.00 55.41 0.00 0.0000 58 51.39 0.00 0.00 51.39 0.00 0.0000 59 52.75 0.00 0.00 52.75 0.00 0.0000 60 48.69 0.00 0.00 48.69 0.00 0.0000 61 44.62 0.00 0.00 44.62 0.00 0.0000 62 40.52 0.00 0.00 40.52 0.00 0.0000 63 20.20 0.00 0.00 20.20 0.00 0.0000 64 21.46 0.00 0.00 21.46 0.00 0.0000 65 2.16 0.00 0.00 2.16 0.00 0.0000 66 2.16 0.00 0.00 2.16 0.00 0.0000 67 1.62 0.00 0.00 1.62 0.00 0.0000 68 1.62 0.00 0.00 1.62 0.00 0.0000 69 2.70 0.00 0.00 2.70 0.00 0.0000 70 2.70 0.00 0.00 2.70 0.00 0.0000 71 2.70 0.00 0.00 2.70 0.00 0.0000 72 2.16 0.00 0.00 2.16 0.00 0.0000 73 0.00 0.00 0.00 0.00 0.00 0.0000 74 2.16 0.00 0.00 2.16 0.00 0.0000 75 2.16 0.00 0.00 2.16 0.00 0.0000 76 1.62 0.00 0.00 1.62 0.00 0.0000 77 1.08 0.00 0.00 1.08 0.00 0.0000 78 1.62 0.00 0.00 1.62 0.00 0.0000 79 2.16 0.00 0.00 2.16 0.00 0.0000 80 1.62 0.00 0.00 1.62 0.00 0.0000 81 1.08 0.00 0.00 1.08 0.00 0.0000 82 1.62 0.06 0.00 1.62 0.06 0.0000 83 1.68 0.00 0.00 1.68 0.00 0.0000 84 1.62 0.00 0.00 1.62 0.00 0.0000 85 1.08 0.00 0.00 1.08 0.00 0.0000 86 1.62 0.00 0.00 1.62 0.00 0.0000 87 1.08 0.00 0.00 1.08 0.00 0.0000 88 1.62 0.00 0.00 1.62 0.00 0.0000 89 1.08 0.00 0.00 1.08 0.00 0.0000 90 1.62 0.00 0.00 1.62 0.00 0.0000 91 1.08 0.00 0.00 1.08 0.00 0.0000 92 1.08 0.00 0.00 1.08 0.00 0.0000 93 1.08 0.00 0.00 1.08 0.00 0.0000 94 1.08 0.00 0.00 1.08 0.00 0.0000 95 1.08 0.00 0.00 1.08 0.00 0.0000 96 1.08 0.00 0.00 1.08 0.00 0.0000 92 OF 144 PROJECT: CAL. ART BY: AMG DATE: 8/22/18 UNIT XSECTIONAL ACCUM.ADJ. VOL.(CF)PERC.JOB #: 201801214 SECTION AREA ADJ. AREA UNIT MATRIX AREA(SF)TTL.LEN.(FT) 10/10H 1.4962 26.1808 6807.02 1560.00 260.00 9/10H 2.3862 24.6846 6418.00 UNIT HT (IN) 8/10H 2.8715 22.2984 5797.58 60.00 7/10H 3.1140 19.4269 5051.00 . 6/10H 3.2225 16.3129 4241.36 5/10H 3.2225 13.0904 3403.51 4/10H 3.1140 9.8679 2565.66 BOTTOM ELEV. 3/10H 2.8715 6.7539 1756.02 51.68 2/10H 2.3862 3.8824 1009.43 1/10H 1.4962 1.4962 389.02 PERIOD DEPTH W.S. ELEV. INCR/DECR OK/OVERFLOW 1 0.00000 51.68 OK 2 0.00000 51.68 FLAT OK 3 0.00000 51.68 FLAT OK 4 0.00000 51.68 FLAT OK 5 0.00000 51.68 FLAT OK 6 0.00000 51.68 FLAT OK 7 0.00000 51.68 FLAT OK 8 0.00000 51.68 FLAT OK 9 0.00000 51.68 FLAT OK 10 0.00000 51.68 FLAT OK 11 0.00000 51.68 FLAT OK 12 0.00000 51.68 FLAT OK 13 0.00000 51.68 FLAT OK 14 0.00000 51.68 FLAT OK 15 0.00000 51.68 FLAT OK 16 0.00000 51.68 FLAT OK 17 0.00000 51.68 FLAT OK 18 0.00000 51.68 FLAT OK 19 0.00000 51.68 FLAT OK 20 0.00000 51.68 FLAT OK 21 0.00000 51.68 FLAT OK 22 0.00000 51.68 FLAT OK 23 0.00000 51.68 FLAT OK 24 0.00000 51.68 FLAT OK 25 0.00000 51.68 FLAT OK 26 0.00000 51.68 FLAT OK 27 0.00000 51.68 FLAT OK 28 0.00000 51.68 FLAT OK 29 0.00000 51.68 FLAT OK 30 0.00000 51.68 FLAT OK 31 0.00000 51.68 FLAT OK 32 0.00000 51.68 FLAT OK 33 0.00000 51.68 FLAT OK 34 0.00000 51.68 FLAT OK 35 0.00000 51.68 FLAT OK 36 0.00000 51.68 FLAT OK 37 0.00000 51.68 FLAT OK 38 0.00000 51.68 FLAT OK 39 0.00000 51.68 FLAT OK 40 0.00000 51.68 FLAT OK 93 OF 144 PERIOD DEPTH W.S. ELEV. INCR/DECR OK/OVERFLOW 41 0.00000 51.68 FLAT OK PROJECT: CAL. ART 42 0.00000 51.68 FLAT OK BY:AMG 43 0.00000 51.68 FLAT OK DATE:8/22/18 44 0.00000 51.68 FLAT OK JOB #:201801214 45 0.00000 51.68 FLAT OK 46 0.00000 51.68 FLAT OK 47 0.00000 51.68 FLAT OK 48 0.00000 51.68 FLAT OK 49 0.00000 51.68 FLAT OK 50 0.00000 51.68 FLAT OK 51 0.00000 51.68 FLAT OK 52 0.00000 51.68 FLAT OK 53 0.00000 51.68 FLAT OK 54 0.00000 51.68 FLAT OK 55 0.00000 51.68 FLAT OK 56 0.00000 51.68 FLAT OK 57 0.00000 51.68 FLAT OK 58 0.00000 51.68 FLAT OK 59 0.00000 51.68 FLAT OK 60 0.00000 51.68 FLAT OK 61 0.00000 51.68 FLAT OK 62 0.00000 51.68 FLAT OK 63 0.00000 51.68 FLAT OK 64 0.00000 51.68 FLAT OK 65 0.00000 51.68 FLAT OK 66 0.00000 51.68 FLAT OK 67 0.00000 51.68 FLAT OK 68 0.00000 51.68 FLAT OK 69 0.00000 51.68 FLAT OK 70 0.00000 51.68 FLAT OK 71 0.00000 51.68 FLAT OK 72 0.00000 51.68 FLAT OK 73 0.00000 51.68 FLAT OK 74 0.00000 51.68 FLAT OK 75 0.00000 51.68 FLAT OK 76 0.00000 51.68 FLAT OK 77 0.00000 51.68 FLAT OK 78 0.00000 51.68 FLAT OK 79 0.00000 51.68 FLAT OK 80 0.00000 51.68 FLAT OK 81 0.00000 51.68 FLAT OK 82 0.00007 51.68 PEAK OK 83 0.00000 51.68 DEC OK 84 0.00000 51.68 FLAT OK 85 0.00000 51.68 FLAT OK 86 0.00000 51.68 FLAT OK 87 0.00000 51.68 FLAT OK 88 0.00000 51.68 FLAT OK 89 0.00000 51.68 FLAT OK 90 0.00000 51.68 FLAT OK 91 0.00000 51.68 FLAT OK 92 0.00000 51.68 FLAT OK 93 0.00000 51.68 FLAT OK 94 0.00000 51.68 FLAT OK 95 0.00000 51.68 FLAT OK 96 0.00000 51.68 FLAT OK 94 OF 144 PROJECT: CAL. ART BY: AMG DATE: 8/22/18 JOB #: 201801214 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1 4 7 101316192225283134374043464952555861646770737679828588919497DEPTH IN FEETPERIOD IN 15 MINUTE INCREMENTS DEPTH IN UNDERGROUND STORAGE 95 OF 144 96 OF 144 RCFC &WCD'S SYNTHETIC UNIT HYDROGRAPH METHOD PROJECT: CAL. ART BASIC DATA CALCULATION FORM BY: AMG DATE: 8/22/18 JOB #: 201801214 [1] CONCENTRATION POINT 1 [2] AREA DESIGNATION A POSTCONSTRUCTION [3] AREA - SQ INCHES - [4] AREA ADJUSTMENT FACTOR - [5] AREA ACRES 1.2500 [6] L-INCHES 0.66 [7]L-ADJUSTMENT FACTOR 0.66 [8]L-MILES ( [6]*[7] ) 0.073 [9] LCA - INCHES - [10]LCA - MILES ( [7]*[9] ) 0.018 [11] ELEVATION OF HEADWATER 62.00 [12] ELEVATION OF CONCENTRATION POINT 1.32 [13] H- FEET ( [11]-[12] ) 60.68 [14] S - FEET/MILE ( [13/[8] ) 832.18 [15] S**0.5 28.85 [16] L*LCA/S**.5 ( [8]*[10]/[15] ) 0.00005 [17] AVERAGE MANNING "N" 0.02 [18] LAG TIME - HOURS ( 24*[17]*[16]**0.38 ) (PLATE E-3) 0.0170046 [19] LAG TIME - MINUTES ( 60*[18] ) 1.02 [20] 25% OF LAG TIME ( 0.25*[19] ) 0.26 [21] 40% OF LAG TIME ( 0.40*[19] ) 0.41 [22] UNIT TIME - MINUTES ( 25-[21] ) 24.59 `` RAINFALL DATA [1] SOURCE RCFCWCD [2] FREQUENCY - YEARS 10YR 24HR [3] DURATION: 3 HOUR 6 HOUR 24 HOUR [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] POINT AREA [5]AVG. POINT AREA [9]AVG. POINT AREA [13]AVG. RAIN SQ Σ [5] POINT RAIN SQ Σ [9] POINT RAIN SQ Σ [13] POINT INCHES INCHES RAIN IN. INCHES INCHES RAIN IN. INCHES INCHES RAIN IN. ------- -2.30 - - 2.30 Σ [5]=-Σ [7]= -Σ [9]=-Σ [11]= -Σ [13]=-Σ [15]= 2.30 [16] AREAL ADJ FACTOR 1 (SEE PLATE E-5.8)11 [17] ADJ.AVG.POINT RAIN - ([16]* Σ [7],ETC)-2.30 97 OF 144 98 OF 144 RCFC &WCD'S SYNTHETIC UNIT HYDROGRAPH METHOD PROJECT: CAL. ART UNIT HYDROGRAPH AND EFFECTIVE RAIN CALCULATION SHEET BY: AMG DATE: 8/22/18 JOB #: 201801214 [1] CONCENTRATION POINT 1 [2] AREA DESIGNATION A POSTCONSTRUCTION [3] DRAINAGE AREA - ACRES 1.2500 [4] ULTIMATE DISCHARGE-CFS-HRS/IN (645*[3]N/A [5] UNIT TIME - MINUTES 15 [6] LAG TIME-MINUTES 1.02 [7] UNIT TIME - PERCENT OF LAG (100*[5]/[6])N/A [8] S-CURVE DESERT [9] STORM FREQUENCY & DURATION 10YR 24HR [10] TOTAL ADJUSTED STORM RAIN-INCHES 2.30 [11] VARIABLE LOSS RATE (AVG) - IN/HR 0.000897222 [12] MINIMUM LOSS RATE (FOR VAR. LOSS)-IN/HR 0.04845 [13] CONSTANT LOSS RATE - IN/HR -[14] LOW LOSS RATE-PERCENT 90 UNIT HYDROGRAPH [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] UNIT TIME CULMULATIVE DISTRIB. UNIT PATTERN STORM LOSS EFFECTIVE FLOW TIME PERCENT AVERAGE GRAPH HYDROGRAPH PERCENT RAIN RATE RAIN CFS PERIOD OF LAG PERCENT OF PERCENT CFS-HRS/IN (PL E-5.9) IN/HR IN/HR IN/HR m [7]*[15] ULTIMATE [17]m- [4]*[18]60[10][20][21]-[22] DISCHARGE [17]m-1 100 100[5] MAX LOW (S-GRAPH) 1 0.20 0.018 0.171 0.017 0.002 0.002 2 0.30 0.028 0.169 0.025 0.003 0.003 3 0.30 0.028 0.167 0.025 0.003 0.003 4 0.40 0.037 0.165 0.033 0.004 0.005 5 0.30 0.028 0.163 0.025 0.003 0.003 6 0.30 0.028 0.161 0.025 0.003 0.003 7 0.30 0.028 0.159 0.025 0.003 0.003 8 0.40 0.037 0.157 0.033 0.004 0.005 9 0.40 0.037 0.156 0.033 0.004 0.005 10 0.40 0.037 0.154 0.033 0.004 0.005 11 0.50 0.046 0.152 0.041 0.005 0.006 12 0.50 0.046 0.150 0.041 0.005 0.006 13 0.50 0.046 0.148 0.041 0.005 0.006 14 0.50 0.046 0.146 0.041 0.005 0.006 15 0.50 0.046 0.144 0.041 0.005 0.006 16 43334.00 0.60 0.055 0.143 0.050 0.006 0.007 17 0.60 0.055 0.141 0.050 0.006 0.007 18 0.70 0.064 0.139 0.058 0.006 0.008 19 0.70 0.064 0.137 0.058 0.006 0.008 20 0.80 0.074 0.135 0.066 0.007 0.009 21 0.60 0.055 0.134 0.050 0.006 0.007 22 0.70 0.064 0.132 0.058 0.006 0.008 23 0.80 0.074 0.130 0.066 0.007 0.009 24 0.80 0.074 0.128 0.066 0.007 0.009 25 0.90 0.083 0.127 0.075 0.008 0.010 26 0.90 0.083 0.125 0.075 0.008 0.010 27 1.00 0.092 0.123 0.083 0.009 0.012 28 1.00 0.092 0.122 0.083 0.009 0.012 29 1.00 0.092 0.120 0.083 0.009 0.012 30 1.10 0.101 0.118 0.091 0.010 0.013 31 1.2 0.110 0.117 0.099 0.011 0.014 32 1.30 0.120 0.115 0.108 0.004 0.005 33 1.50 0.138 0.114 0.124 0.024 0.030 34 1.50 0.138 0.112 0.124 0.026 0.032 35 1.60 0.147 0.110 0.132 0.037 0.046 36 1.70 0.156 0.109 0.141 0.047 0.059 99 OF 144 RCFC &WCD'S SYNTHETIC UNIT HYDROGRAPH METHOD PROJECT: CAL. ART UNIT HYDROGRAPH AND EFFECTIVE RAIN CALCULATION SHEET BY: AMG DATE: 8/22/18 JOB #: 201801214 [1] CONCENTRATION POINT 1 [2] AREA DESIGNATION A POSTCONSTRUCTION [3] DRAINAGE AREA - ACRES 1.2500 [4] ULTIMATE DISCHARGE-CFS-HRS/IN (645*[3]N/A [5] UNIT TIME - MINUTES 15 [6] LAG TIME-MINUTES 1.02 [7] UNIT TIME - PERCENT OF LAG (100*[5]/[6])N/A [8] S-CURVE DESERT [9] STORM FREQUENCY & DURATION 10YR 24HR [10] TOTAL ADJUSTED STORM RAIN-INCHES 2.3 [11] VARIABLE LOSS RATE (AVG) - INCHES/HOUR 0.000897222 [12] MINIMUM LOSS RATE (FOR VAR. LOSS)-IN/HR 0.04845 [13] CONSTANT LOSS RATE - INCHES PER HOUR -[14] LOW LOSS RATE-PERCENT 90 UNIT HYDROGRAPH [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] UNIT TIME CULMULATIVE DISTRIB. UNIT PATTERN STORM LOSS EFFECTIVE FLOW TIME PERCENT AVERAGE GRAPH HYDROGRAPH PERCENT RAIN RATE RAIN CFS PERIOD OF LAG PERCENT OF PERCENT CFS-HRS/IN (PL E-5.9) IN/HR IN/HR IN/HR m [7]*[15] ULTIMATE [17]m- [4]*[18]60[10][20][21]-[22] DISCHARGE [17]m-1 100 100[5] MAX LOW (S-GRAPH) 37 1.90 0.175 0.107 0.157 0.067 0.084 38 2.00 0.184 0.106 0.166 0.078 0.098 39 2.10 0.193 0.104 0.174 0.089 0.111 40 2.20 0.202 0.103 0.182 0.100 0.124 41 1.50 0.138 0.101 0.124 0.037 0.046 42 1.50 0.138 0.100 0.124 0.038 0.048 43 2.00 0.184 0.098 0.166 0.086 0.107 44 2.00 0.184 0.097 0.166 0.087 0.109 45 1.90 0.175 0.096 0.157 0.079 0.099 46 1.90 0.175 0.094 0.157 0.081 0.101 47 1.70 0.156 0.093 0.141 0.064 0.080 48 1.80 0.166 0.091 0.149 0.074 0.093 49 2.50 0.230 0.090 0.207 0.140 0.175 50 2.60 0.239 0.089 0.215 0.151 0.188 51 2.80 0.258 0.087 0.232 0.170 0.213 52 2.90 0.267 0.086 0.240 0.181 0.226 53 3.40 0.313 0.085 0.282 0.228 0.285 54 3.40 0.313 0.083 0.282 0.229 0.287 55 2.30 0.212 0.082 0.190 0.129 0.162 56 2.30 0.212 0.081 0.190 0.131 0.163 57 2.70 0.248 0.080 0.224 0.169 0.211 58 2.60 0.239 0.078 0.215 0.161 0.201 59 2.60 0.239 0.077 0.215 0.162 0.202 60 2.50 0.230 0.076 0.207 0.154 0.192 61 2.40 0.221 0.075 0.199 0.146 0.182 62 2.30 0.212 0.074 0.190 0.138 0.172 63 1.90 0.175 0.073 0.157 0.102 0.128 64 1.90 0.175 0.072 0.157 0.103 0.129 65 0.40 0.037 0.070 0.033 0.004 0.005 66 0.40 0.037 0.069 0.033 0.004 0.005 67 0.30 0.028 0.068 0.025 0.003 0.003 68 0.30 0.028 0.067 0.025 0.003 0.003 69 0.50 0.046 0.066 0.041 0.005 0.006 70 0.50 0.046 0.065 0.041 0.005 0.006 71 0.50 0.046 0.064 0.041 0.005 0.006 72 0.40 0.037 0.063 0.033 0.004 0.005 100 OF 144 RCFC &WCD'S SYNTHETIC UNIT HYDROGRAPH METHOD PROJECT: CAL. ART UNIT HYDROGRAPH AND EFFECTIVE RAIN CALCULATION SHEET BY: AMG DATE: 8/22/18 JOB #: 201801214 [1] CONCENTRATION POINT 1 [2] AREA DESIGNATION A POSTCONSTRUCTION [3] DRAINAGE AREA - ACRES 1.2500 [4] ULTIMATE DISCHARGE-CFS-HRS/IN (645*[3]N/A [5] UNIT TIME - MINUTES 15 [6] LAG TIME-MINUTES 1.02 [7] UNIT TIME - PERCENT OF LAG (100*[5]/[6])N/A [8] S-CURVE DESERT [9] STORM FREQUENCY & DURATION 10YR 24HR [10] TOTAL ADJUSTED STORM RAIN-INCHES 2.3 [11] VARIABLE LOSS RATE (AVG) - INCHES/HOUR 0.000897222 [12] MINIMUM LOSS RATE (FOR VAR. LOSS)-IN/HR 0.04845 [13] CONSTANT LOSS RATE - INCHES PER HOUR 0.18 [14] LOW LOSS RATE-PERCENT 90 UNIT HYDROGRAPH [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] UNIT TIME CULMULATIVE DISTRIB. UNIT PATTERN STORM LOSS EFFECTIVE FLOW TIME PERCENT AVERAGE GRAPH HYDROGRAPH PERCENT RAIN RATE RAIN CFS PERIOD OF LAG PERCENT OF PERCENT CFS-HRS/IN (PL E-5.9) IN/HR IN/HR IN/HR m [7]*[15] ULTIMATE [17]m- [4]*[18]60[10][20][21]-[22] DISCHARGE [17]m-1 100 100[5] MAX LOW (S-GRAPH) 73 0.40 0.037 0.062 0.033 0.004 0.005 74 0.40 0.037 0.061 0.033 0.004 0.005 75 0.30 0.028 0.061 0.025 0.003 0.003 76 0.20 0.018 0.060 0.017 0.002 0.002 77 0.30 0.028 0.059 0.025 0.003 0.003 78 0.40 0.037 0.058 0.033 0.004 0.005 79 0.30 0.028 0.057 0.025 0.003 0.003 80 0.20 0.018 0.057 0.017 0.002 0.002 81 0.30 0.028 0.056 0.025 0.003 0.003 82 0.30 0.028 0.055 0.025 0.003 0.003 83 0.30 0.028 0.054 0.025 0.003 0.003 84 0.20 0.018 0.054 0.017 0.002 0.002 85 0.30 0.028 0.053 0.025 0.003 0.003 86 0.20 0.018 0.052 0.017 0.002 0.002 87 0.30 0.028 0.052 0.025 0.003 0.003 88 0.20 0.018 0.051 0.017 0.002 0.002 89 0.30 0.028 0.051 0.025 0.003 0.003 90 0.20 0.018 0.050 0.017 0.002 0.002 91 0.20 0.018 0.050 0.017 0.002 0.002 92 0.20 0.018 0.050 0.017 0.002 0.002 93 0.20 0.018 0.049 0.017 0.002 0.002 94 0.20 0.018 0.049 0.017 0.002 0.002 95 0.20 0.018 0.049 0.017 0.002 0.002 96 0.20 0.018 0.048 0.017 0.002 0.002 Σ=100%Σ= 3.777 0.00 CF A/G STORAGE 3.78 IN/HR*0.25=0.94 " 6807.02 CF U/G STORAGE 0.94 " * 0.083333 1.2500 ACRES= 4282.24 CF PERC LOSS IN 24 HRS 0.10 AC FT= 4284.5 CF 11089.26 CF PROVIDED 0.00 CF DISCHARGED 1043.62 CF DISCHARGES AT PRECONSTRUCTION 101 OF 144 PROJECT: CAL. ART BY: AMG 10 YR / 24 HR DATE: 8/22/18 JOB #: 201801214 0.00 0.05 0.10 0.15 0.20 0.25 1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67 70 73 76 79 82 85 88 91 94IN/HRPERIOD (15 MIN) RAINFALL INTENSITY (IN/HR) 0 20 40 60 80 100 120 DISCHARGE IN PERCENT OF ULTIMATE DISCHARGE (K)TIME IN PERCENT OF LAG S-CURVE DESERT AREA 102 OF 144 PROJECT: CAL. ART BY: AMG DATE: 8/22/18 JOB #: 201801214 PERC. RATE (IN/HR)=0.00 ACCUM. ADD.PERC.ADD.ADJUSTED ACRE PERIOD VOL.(CF)FLOWS(CF)LOSSES(CF)LOSSED(CF)ACCUM.VOL.(CF)FEET 1 2.09 0.00 0.00 2.09 0.00 0.0000 2 3.13 0.00 0.00 3.13 0.00 0.0000 3 3.13 0.00 0.00 3.13 0.00 0.0000 4 4.17 0.00 0.00 4.17 0.00 0.0000 5 3.13 0.00 0.00 3.13 0.00 0.0000 6 3.13 0.00 0.00 3.13 0.00 0.0000 7 3.13 0.00 0.00 3.13 0.00 0.0000 8 4.17 0.00 0.00 4.17 0.00 0.0000 9 4.17 0.00 0.00 4.17 0.00 0.0000 10 4.17 0.00 0.00 4.17 0.00 0.0000 11 5.22 0.00 0.00 5.22 0.00 0.0000 12 5.22 0.00 0.00 5.22 0.00 0.0000 13 5.22 0.00 0.00 5.22 0.00 0.0000 14 5.22 0.00 0.00 5.22 0.00 0.0000 15 5.22 0.00 0.00 5.22 0.00 0.0000 16 6.26 0.00 0.00 6.26 0.00 0.0000 17 6.26 0.00 0.00 6.26 0.00 0.0000 18 7.31 0.00 0.00 7.31 0.00 0.0000 19 7.31 0.00 0.00 7.31 0.00 0.0000 20 8.35 0.00 0.00 8.35 0.00 0.0000 21 6.26 0.00 0.00 6.26 0.00 0.0000 22 7.31 0.00 0.00 7.31 0.00 0.0000 23 8.35 0.00 0.00 8.35 0.00 0.0000 24 8.35 0.00 0.00 8.35 0.00 0.0000 25 9.39 0.00 0.00 9.39 0.00 0.0000 26 9.39 0.00 0.00 9.39 0.00 0.0000 27 10.44 0.00 0.00 10.44 0.00 0.0000 28 10.44 0.00 0.00 10.44 0.00 0.0000 29 10.44 0.00 0.00 10.44 0.00 0.0000 30 11.48 0.00 0.00 11.48 0.00 0.0000 31 12.52 0.00 0.00 12.52 0.00 0.0000 32 4.98 0.00 0.00 4.98 0.00 0.0000 33 27.66 0.00 0.00 27.66 0.00 0.0000 34 29.46 0.00 0.00 29.46 0.00 0.0000 35 41.67 0.00 0.00 41.67 0.00 0.0000 36 53.88 0.00 0.00 53.88 0.00 0.0000 37 76.50 0.00 0.00 76.50 0.00 0.0000 38 88.66 0.00 0.00 88.66 0.00 0.0000 39 100.82 0.00 0.00 100.82 0.00 0.0000 40 112.95 0.00 0.00 112.95 0.00 0.0000 41 41.59 0.00 0.00 41.59 0.00 0.0000 42 43.25 0.00 0.00 43.25 0.00 0.0000 43 97.08 0.00 0.00 97.08 0.00 0.0000 44 98.72 0.00 0.00 98.72 0.00 0.0000 45 89.90 0.00 0.00 89.90 0.00 0.0000 46 91.50 0.00 0.00 91.50 0.00 0.0000 47 72.21 0.00 0.00 72.21 0.00 0.0000 48 84.21 0.00 0.00 84.21 0.00 0.0000 103 OF 144 PROJECT: CAL. ART BY: AMG DATE: 8/22/18 JOB #: 201801214 PERC. RATE (IN/HR)=0.00 ACCUM. ADD.PERC.ADD. ADJUSTED ACRE PERIOD VOL.(CF)FLOWS(CF)LOSSES(CF)LOSSES(CF)ACCUM.VOL.(CF)FEET 49 158.80 0.00 0.00 158.80 0.00 0.0000 50 170.77 0.00 0.00 170.77 0.00 0.0000 51 193.15 0.00 0.00 193.15 0.00 0.0000 52 205.08 0.00 0.00 205.08 0.00 0.0000 53 258.74 0.00 0.00 225.00 33.74 0.0008 54 293.93 0.00 0.00 225.00 68.93 0.0016 55 215.76 0.00 0.00 215.76 0.00 0.0000 56 148.25 0.00 0.00 148.25 0.00 0.0000 57 191.40 0.00 0.00 191.40 0.00 0.0000 58 182.34 0.00 0.00 182.34 0.00 0.0000 59 183.70 0.00 0.00 183.70 0.00 0.0000 60 174.60 0.00 0.00 174.60 0.00 0.0000 61 165.49 0.00 0.00 165.49 0.00 0.0000 62 156.35 0.00 0.00 156.35 0.00 0.0000 63 115.89 0.00 0.00 115.89 0.00 0.0000 64 117.15 0.00 0.00 117.15 0.00 0.0000 65 4.17 0.00 0.00 4.17 0.00 0.0000 66 4.17 0.00 0.00 4.17 0.00 0.0000 67 3.13 0.00 0.00 3.13 0.00 0.0000 68 3.13 0.00 0.00 3.13 0.00 0.0000 69 5.22 0.00 0.00 5.22 0.00 0.0000 70 5.22 0.00 0.00 5.22 0.00 0.0000 71 5.22 0.00 0.00 5.22 0.00 0.0000 72 4.17 0.00 0.00 4.17 0.00 0.0000 73 0.00 0.00 0.00 0.00 0.00 0.0000 74 4.17 0.00 0.00 4.17 0.00 0.0000 75 4.17 0.00 0.00 4.17 0.00 0.0000 76 3.13 0.00 0.00 3.13 0.00 0.0000 77 2.09 0.00 0.00 2.09 0.00 0.0000 78 3.13 0.00 0.00 3.13 0.00 0.0000 79 4.17 0.00 0.00 4.17 0.00 0.0000 80 3.13 0.00 0.00 3.13 0.00 0.0000 81 2.09 0.00 0.00 2.09 0.00 0.0000 82 3.13 0.00 0.00 3.13 0.00 0.0000 83 3.13 0.00 0.00 3.13 0.00 0.0000 84 3.13 0.00 0.00 3.13 0.00 0.0000 85 2.09 0.00 0.00 2.09 0.00 0.0000 86 3.13 0.00 0.00 3.13 0.00 0.0000 87 2.09 0.00 0.00 2.09 0.00 0.0000 88 3.13 0.00 0.00 3.13 0.00 0.0000 89 2.09 0.00 0.00 2.09 0.00 0.0000 90 3.13 0.00 0.00 3.13 0.00 0.0000 91 2.09 0.00 0.00 2.09 0.00 0.0000 92 2.09 0.00 0.00 2.09 0.00 0.0000 93 2.09 0.00 0.00 2.09 0.00 0.0000 94 2.09 0.00 0.00 2.09 0.00 0.0000 95 2.09 0.00 0.00 2.09 0.00 0.0000 96 2.09 0.00 0.00 2.09 0.00 0.0000 104 OF 144 PROJECT: CAL. ART BY: AMG DATE: 8/22/18 UNIT XSECTIONAL ACCUM.ADJ. VOL.(CF)PERC.JOB: 201801214 SECTION AREA ADJ. AREA UNIT MATRIX AREA(SF)TTL.LEN.(FT) 10/10H 1.4962 26.1808 6807.02 1560.00 260.00 9/10H 2.3862 24.6846 6418.00 UNIT HT (IN) 8/10H 2.8715 22.2984 5797.58 60.00 7/10H 3.1140 19.4269 5051.00 . 6/10H 3.2225 16.3129 4241.36 5/10H 3.2225 13.0904 3403.51 4/10H 3.1140 9.8679 2565.66 BOTTOM ELEV. 3/10H 2.8715 6.7539 1756.02 51.68 2/10H 2.3862 3.8824 1009.43 1/10H 1.4962 1.4962 389.02 PERIOD DEPTH W.S. ELEV. INCR/DECR OK/OVERFLOW 1 0.00000 51.68 OK 2 0.00000 51.68 FLAT OK 3 0.00000 51.68 FLAT OK 4 0.00000 51.68 FLAT OK 5 0.00000 51.68 FLAT OK 6 0.00000 51.68 FLAT OK 7 0.00000 51.68 FLAT OK 8 0.00000 51.68 FLAT OK 9 0.00000 51.68 FLAT OK 10 0.00000 51.68 FLAT OK 11 0.00000 51.68 FLAT OK 12 0.00000 51.68 FLAT OK 13 0.00000 51.68 FLAT OK 14 0.00000 51.68 FLAT OK 15 0.00000 51.68 FLAT OK 16 0.00000 51.68 FLAT OK 17 0.00000 51.68 FLAT OK 18 0.00000 51.68 FLAT OK 19 0.00000 51.68 FLAT OK 20 0.00000 51.68 FLAT OK 21 0.00000 51.68 FLAT OK 22 0.00000 51.68 FLAT OK 23 0.00000 51.68 FLAT OK 24 0.00000 51.68 FLAT OK 25 0.00000 51.68 FLAT OK 26 0.00000 51.68 FLAT OK 27 0.00000 51.68 FLAT OK 28 0.00000 51.68 FLAT OK 29 0.00000 51.68 FLAT OK 30 0.00000 51.68 FLAT OK 31 0.00000 51.68 FLAT OK 32 0.00000 51.68 FLAT OK 33 0.00000 51.68 FLAT OK 34 0.00000 51.68 FLAT OK 35 0.00000 51.68 FLAT OK 36 0.00000 51.68 FLAT OK 37 0.00000 51.68 FLAT OK 38 0.00000 51.68 FLAT OK 39 0.00000 51.68 FLAT OK 40 0.00000 51.68 FLAT OK 105 OF 144 PERIOD DEPTH W.S. ELEV. INCR/DECR OK/OVERFLOW 41 0.00000 51.68 FLAT OK 42 0.00000 51.68 FLAT OK PROJECT: CAL. ART 43 0.00000 51.68 FLAT OK BY:AMG 44 0.00000 51.68 FLAT OK DATE:8/22/18 45 0.00000 51.68 FLAT OK JOB #:201801214 46 0.00000 51.68 FLAT OK 47 0.00000 51.68 FLAT OK 48 0.00000 51.68 FLAT OK 49 0.00000 51.68 FLAT OK 50 0.00000 51.68 FLAT OK 51 0.00000 51.68 FLAT OK 52 0.00000 51.68 FLAT OK 53 0.04336 51.72 INC OK 54 0.08859 51.77 PEAK OK 55 0.00000 51.68 DEC OK 56 0.00000 51.68 FLAT OK 57 0.00000 51.68 FLAT OK 58 0.00000 51.68 FLAT OK 59 0.00000 51.68 FLAT OK 60 0.00000 51.68 FLAT OK 61 0.00000 51.68 FLAT OK 62 0.00000 51.68 FLAT OK 63 0.00000 51.68 FLAT OK 64 0.00000 51.68 FLAT OK 65 0.00000 51.68 FLAT OK 66 0.00000 51.68 FLAT OK 67 0.00000 51.68 FLAT OK 68 0.00000 51.68 FLAT OK 69 0.00000 51.68 FLAT OK 70 0.00000 51.68 FLAT OK 71 0.00000 51.68 FLAT OK 72 0.00000 51.68 FLAT OK 73 0.00000 51.68 FLAT OK 74 0.00000 51.68 FLAT OK 75 0.00000 51.68 FLAT OK 76 0.00000 51.68 FLAT OK 77 0.00000 51.68 FLAT OK 78 0.00000 51.68 FLAT OK 79 0.00000 51.68 FLAT OK 80 0.00000 51.68 FLAT OK 81 0.00000 51.68 FLAT OK 82 0.00000 51.68 FLAT OK 83 0.00000 51.68 FLAT OK 84 0.00000 51.68 FLAT OK 85 0.00000 51.68 FLAT OK 86 0.00000 51.68 FLAT OK 87 0.00000 51.68 FLAT OK 88 0.00000 51.68 FLAT OK 89 0.00000 51.68 FLAT OK 90 0.00000 51.68 FLAT OK 91 0.00000 51.68 FLAT OK 92 0.00000 51.68 FLAT OK 93 0.00000 51.68 FLAT OK 94 0.00000 51.68 FLAT OK 95 0.00000 51.68 FLAT OK 96 0.00000 51.68 FLAT OK 106 OF 144 PROJECT: CAL. ART BY: AMG DATE: 8/22/18 JOB #: 201801214 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.10 1 4 7 1013161922252831343740434649525558616467707376798285889194DEPTH IN FEETPERIOD IN 15 MINUTE INCREMENTS DEPTH IN UNDERGROUND STORAGE 107 OF 144 108 OF 144 RCFC &WCD'S SYNTHETIC UNIT HYDROGRAPH METHOD PROJECT: CAL. ART BASIC DATA CALCULATION FORM BY: AMG DATE: 8/22/18 JOB #: 201801214 [1] CONCENTRATION POINT 1 [2] AREA DESIGNATION A POST CONSTRUCTION [3] AREA - SQ INCHES - [4] AREA ADJUSTMENT FACTOR - [5] AREA ACRES 1.2500 [6] L-INCHES 0.66 [7]L-ADJUSTMENT FACTOR 0.66 [8]L-MILES ( [6]*[7] ) 0.073 [9] LCA - INCHES - [10]LCA - MILES ( [7]*[9] ) 0.018 [11] ELEVATION OF HEADWATER 62.00 [12] ELEVATION OF CONCENTRATION POINT 1.32 [13] H- FEET ( [11]-[12] ) 60.68 [14] S - FEET/MILE ( [13/[8] ) 832.18 [15] S**0.5 28.85 [16] L*LCA/S**.5 ( [8]*[10]/[15] ) 0.00005 [17] AVERAGE MANNING "N" 0.02 [18] LAG TIME - HOURS ( 24*[17]*[16]**0.38 ) (PLATE E-3) 0.0170046 [19] LAG TIME - MINUTES ( 60*[18] ) 1.02 [20] 25% OF LAG TIME ( 0.25*[19] ) 0.26 [21] 40% OF LAG TIME ( 0.40*[19] ) 0.41 [22] UNIT TIME - MINUTES ( 25-[21] ) 24.59 `` RAINFALL DATA [1] SOURCE RCFCWCD [2] FREQUENCY - YEARS 100YR 1HR [3] DURATION: 1 HOUR [4] [5] [6] [7] POINT AREA [5]AVG. RAIN SQ Σ [5] POINT INCHES INCHES RAIN IN. 1.58 - - 1.58 Σ [5]=-Σ [7]= 1.58 [16] AREAL ADJ FACTOR 1 [17] ADJ.AVG.POINT RAIN 1.58 109 OF 144 110 OF 144 RCFC &WCD'S SYNTHETIC UNIT HYDROGRAPH METHOD PROJECT: CAL. ART UNIT HYDROGRAPH AND EFFECTIVE RAIN CALCULATION SHEET BY: AMG DATE: 8/22/18 JOB #: 201801214 [1] CONCENTRATION POINT 1 [2] AREA DESIGNATION A POST CONSTRUCTION [3] DRAINAGE AREA - ACRES 1.2500 [4] ULTIMATE DISCHARGE-CFS-HRS/IN (645*[3]N/A [5] UNIT TIME - MINUTES 3.33 [6] LAG TIME-MINUTES 1.02 [7] UNIT TIME - PERCENT OF LAG (100*[5]/[6])N/A [8] S-CURVE DESERT [9] STORM FREQUENCY & DURATION 100YR 1HR [10] TOTAL ADJUSTED STORM RAIN-INCHES 1.58 [11] VARIABLE LOSS RATE (AVG) - IN/HR 0 [12] MINIMUM LOSS RATE (FOR VAR. LOSS)-IN/HR 0 [13] CONSTANT LOSS RATE - IN/HR 0.04845 [14] LOW LOSS RATE-PERCENT 90 UNIT HYDROGRAPH [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] UNIT TIME CULMULATIVE DISTRIB. UNIT PATTERN STORM LOSS EFFECTIVE FLOW TIME PERCENT AVERAGE GRAPH HYDROGRAPH PERCENT RAIN RATE RAIN CFS PERIOD OF LAG PERCENT OF PERCENT CFS-HRS/IN (PL E-5.9) IN/HR IN/HR IN/HR m [7]*[15] ULTIMATE [17]m- [4]*[18]60[10][20][21]-[22] DISCHARGE [17]m-1 100 100[5] MAX LOW (S-GRAPH) 1 17.76 5.056 0.05 - 5.008 6.26 2 14.82 4.219 0.05 - 4.171 5.21 3 11.24 3.198 0.05 - 3.150 3.94 4 8.99 2.559 0.05 - 2.510 3.14 5 4.41 1.256 0.05 - 1.207 1.51 6 4.24 1.206 0.05 - 1.157 1.45 7 4.06 1.155 0.05 - 1.107 1.38 8 3.88 1.105 0.05 - 1.057 1.32 9 3.71 1.055 0.05 - 1.006 1.26 10 3.53 1.005 0.05 - 0.956 1.20 11 3.39 0.964 0.05 - 0.915 1.14 12 3.24 0.923 0.05 - 0.874 1.09 13 3.10 0.882 0.05 - 0.833 1.04 14 2.95 0.841 0.05 - 0.792 0.99 15 2.81 0.800 0.05 - 0.751 0.94 16 43334.00 2.72 0.774 0.05 - 0.726 0.91 17 2.63 0.749 0.05 - 0.700 0.88 18 2.54 0.723 0.05 - 0.675 0.84 0.00 CF A/G STORAGE Σ=100%Σ= 27.60 6807.02 CF U/G STORAGE 899.10 CF PERC LOSS IN 1 HR 7706.12 CF PROVIDED 27.60 IN/HR*0.06= 1.53 " 0.00 CF DISCHARGED 1.53 " * 0.0833 * 1.2500 ACRES= 0.1595 AC FT= 6949.48 CF 6106.83 CF DISCHARGED AT PRECONSTRUCTION 111 OF 144 PROJECT: CAL. ART BY:AMG 100 YR / 1 HR DATE: 8/22/18 JOB #: 201801214 0.00 1.00 2.00 3.00 4.00 5.00 6.00 123456789101112131415161718IN/HRPERIODS IN 3.33 MINUTE INCREMENTS RAINFALL INTENSITY (IN/HR) 0 20 40 60 80 100 120 DISCHARGE IN PERCENT OF ULTIMATE DISCHARGE (K)TIME IN PERCENT OF LAG S-CURVE DESERT AREA 112 OF 144 PROJECT: CAL. ART BY: AMG PERC. RATE (IN/HR)=0.00 DATE:8/22/18 JOB #:201801214 ACCUM. ADD.PERC.ADD.ADJUSTED ACRE PERIOD VOL.(CF)FLOWS(CF)LOSSES(CF)LOSSED(CF)ACCUM.VOL.(CF)FEET 1 1261.01 0.00 0.00 49.95 1211.06 0.0278 2 2261.30 0.00 0.00 49.95 2211.35 0.0508 3 3004.58 0.00 0.00 49.95 2954.63 0.0678 4 3586.77 0.00 0.00 49.95 3536.82 0.0812 5 3840.85 0.00 0.00 49.95 3790.90 0.0870 6 4082.30 0.00 0.00 49.95 4032.35 0.0926 7 4311.07 0.00 0.00 49.95 4261.12 0.0978 8 4527.22 0.00 0.00 49.95 4477.27 0.1028 9 4730.68 0.00 0.00 49.95 4680.73 0.1075 10 4921.52 0.00 0.00 49.95 4871.57 0.1118 11 5102.04 0.00 0.00 49.95 5052.09 0.1160 12 5272.23 0.00 0.00 49.95 5222.28 0.1199 13 5432.10 0.00 0.00 49.95 5382.15 0.1236 14 5581.65 0.00 0.00 49.95 5531.70 0.1270 15 5720.88 0.00 0.00 49.95 5670.93 0.1302 16 5853.65 0.00 0.00 49.95 5803.70 0.1332 17 5980.04 0.00 0.00 49.95 5930.09 0.1361 18 6100.06 0.00 0.00 49.95 6050.11 0.1389 113 OF 144 PROJECT: CAL. ART BY: AMG DATE: 8/22/18 UNIT XSECTIONAL ACCUM. ADJ. VOL.(CF)PERC.JOB: 201801214 SECTION AREA ADJ. AREA UNIT MATRIX AREA(SF)TTL.LEN.(FT) 10/10H 1.4962 26.18084 6807.02 1560.00 260.00 9/10H 2.3862 24.68462 6418.00 UNIT HT (IN) 8/10H 2.8715 22.2984 5797.58 60.00 7/10H 3.1140 19.42692 5051.00 . 6/10H 3.2225 16.31292 4241.36 5/10H 3.2225 13.09042 3403.51 4/10H 3.1140 9.86792 2565.66 BOTTOM ELEV. 3/10H 2.8715 6.75392 1756.02 51.68 2/10H 2.3862 3.88244 1009.43 1/10H 1.4962 1.49622 389.02 PERIOD DEPTH W.S. ELEV. INCR/DECR OK/OVERFLOW 1 1.34 53.02 OK 2 1.93 53.61 INC OK 3 2.43 54.11 INC OK 4 2.92 54.60 INC OK 5 2.95 54.63 INC OK 6 2.98 54.66 INC OK 7 3.42 55.10 INC OK 8 3.44 55.12 INC OK 9 3.46 55.14 INC OK 10 3.48 55.16 INC OK 11 3.94 55.62 INC OK 12 3.95 55.63 INC OK 13 3.96 55.64 INC OK 14 3.98 55.66 INC OK 15 3.99 55.67 INC OK 16 4.45 56.13 INC OK 17 4.46 56.14 INC OK 18 4.47 56.15 PEAK OK 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 5.00 123456789101112131415161718DEPTH IN FEETPERIOD IN 3.33 MINUTE INCREMENTS DEPTH IN UNDERGROUND STORAGE 114 OF 144 RCFC &WCD'S SYNTHETIC UNIT HYDROGRAPH METHOD PROJECT: CAL. ART BASIC DATA CALCULATION FORM BY: AMG DATE: 8/22/18 JOB #: 201801214 [1] CONCENTRATION POINT 1 [2] AREA DESIGNATION A POST CONSTRUCTION [3] AREA - SQ INCHES - [4] AREA ADJUSTMENT FACTOR - [5] AREA ACRES 1.2500 [6] L-INCHES 0.66 [7]L-ADJUSTMENT FACTOR 0.66 [8]L-MILES ( [6]*[7] ) 0.073 [9] LCA - INCHES - [10]LCA - MILES ( [7]*[9] ) 0.018 [11] ELEVATION OF HEADWATER 62.00 [12] ELEVATION OF CONCENTRATION POINT 1.32 [13] H- FEET ( [11]-[12] ) 60.68 [14] S - FEET/MILE ( [13/[8] ) 832.18 [15] S**0.5 28.85 [16] L*LCA/S**.5 ( [8]*[10]/[15] ) 0.00005 [17] AVERAGE MANNING "N" 0.02 [18] LAG TIME - HOURS ( 24*[17]*[16]**0.38 ) (PLATE E-3) 0.0170046 [19] LAG TIME - MINUTES ( 60*[18] ) 1.02 [20] 25% OF LAG TIME ( 0.25*[19] ) 0.26 [21] 40% OF LAG TIME ( 0.40*[19] ) 0.41 [22] UNIT TIME - MINUTES ( 25-[21] ) 24.59 `` RAINFALL DATA [1] SOURCE RCFCWCD [2] FREQUENCY - YEARS 100YR 3HR [3] DURATION: 3 HOUR 6 HOUR 24 HOUR [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] POINT AREA [5]AVG. POINT AREA [9]AVG. POINT AREA [13]AVG. RAIN SQ Σ [5] POINT RAIN SQ Σ [9] POINT RAIN SQ Σ [13] POINT INCHES INCHES RAIN IN. INCHES INCHES RAIN IN. INCHES INCHES RAIN IN. 2.23 - - 2.23 2.82 - - 2.82 4.51 - - 4.51 Σ [5]=-Σ [7]= 2.23 Σ [9]=-Σ [11]= 2.82 Σ [13]=-Σ [15]= 4.51 [16] AREAL ADJ FACTOR 1 (SEE PLATE E-5.8)11 [17] ADJ.AVG.POINT RAIN 2.23 ([16]* Σ [7],ETC)2.82 4.51 115 OF 144 116 OF 144 RCFC &WCD'S SYNTHETIC UNIT HYDROGRAPH METHOD PROJECT: CAL. ART UNIT HYDROGRAPH AND EFFECTIVE RAIN CALCULATION SHEET BY: AMG DATE: 8/22/18 JOB #: 201801214 [1] CONCENTRATION POINT 1 [2] AREA DESIGNATION A POST CONSTRUCTION [3] DRAINAGE AREA - ACRES 1.2500 [4] ULTIMATE DISCHARGE-CFS-HRS/IN (645*[3]N/A [5] UNIT TIME - MINUTES 10 [6] LAG TIME-MINUTES 1.02 [7] UNIT TIME - PERCENT OF LAG (100*[5]/[6])N/A [8] S-CURVE DESERT [9] STORM FREQUENCY & DURATION 100YR 3HR [10] TOTAL ADJUSTED STORM RAIN-INCHES 2.23 [11] VARIABLE LOSS RATE (AVG) - IN/HR 0 [12] MINIMUM LOSS RATE (FOR VAR. LOSS)-IN/HR 0 [13] CONSTANT LOSS RATE - IN/HR 0.04845 [14] LOW LOSS RATE-PERCENT 90 UNIT HYDROGRAPH [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] UNIT TIME CULMULATIVE DISTRIB. UNIT PATTERN STORM LOSS EFFECTIVE FLOW TIME PERCENT AVERAGE GRAPH HYDROGRAPH PERCENT RAIN RATE RAIN CFS PERIOD OF LAG PERCENT OF PERCENT CFS-HRS/IN (PL E-5.9) IN/HR IN/HR IN/HR m [7]*[15] ULTIMATE [17]m- [4]*[18]60[10][20][21]-[22] DISCHARGE [17]m-1 100 100[5] MAX LOW (S-GRAPH) 1 2.60 0.348 0.05 - 0.299 0.37 2 2.60 0.348 0.05 - 0.299 0.37 3 3.30 0.442 0.05 - 0.393 0.49 4 3.30 0.442 0.05 - 0.393 0.49 5 3.30 0.442 0.05 - 0.393 0.49 6 3.40 0.455 0.05 - 0.406 0.51 7 4.40 0.589 0.05 - 0.540 0.68 8 4.20 0.562 0.05 - 0.514 0.64 9 5.30 0.709 0.05 - 0.661 0.83 10 5.10 0.682 0.05 - 0.634 0.79 11 6.40 0.856 0.05 - 0.808 1.01 12 5.90 0.789 0.05 - 0.741 0.93 13 7.30 0.977 0.05 - 0.928 1.16 14 8.50 1.137 0.05 - 1.089 1.36 15 14.10 1.887 0.05 - 1.838 2.30 16 43334.00 14.10 1.887 0.05 - 1.838 2.30 17 3.80 0.508 0.05 - 0.460 0.57 18 2.40 0.321 0.05 - 0.273 0.34 0.00 CF A/G STORAGE Σ=100%Σ= 12.51 6807.02 CF U/G STORAGE 2700.00 CF PERC LOSS IN 3 HRS 9507.02 CF PROVIDED 12.51 IN/HR*0.17= 2.08 " 0.00 CF DISCHARGED 2.08 " * 0.0833 * 1.2500 ACRES= 0.2172 AC FT= 9459.096 CF 6928.60 CF DISCHARGED AT PRECONSTRUCTION 117 OF 144 PROJECT: CAL. ART BY:AMG 100 YR / 3 HR DATE: 8/22/18 JOB #: 201801214 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18IN/HRPERIODS IN 10 MINUTE INCREMENTS RAINFALL INTENSITY (IN/HR) 0 20 40 60 80 100 120 DISCHARGE IN PERCENT OF ULTIMATE DISCHARGE (K)TIME IN PERCENT OF LAG S-CURVE DESERT AREA 118 OF 144 PROJECT: CAL. ART BY: AMG PERC. RATE (IN/HR)=0.00 DATE:8/22/18 JOB #:201801214 ACCUM. ADD.PERC.ADD.ADJUSTED ACRE PERIOD VOL.(CF)FLOWS(CF)LOSSES(CF)LOSSED(CF)ACCUM.VOL.(CF)FEET 1 226.43 0.00 0.00 150.00 76.43 0.0018 2 302.87 0.00 0.00 150.00 152.87 0.0035 3 450.13 0.00 0.00 150.00 300.13 0.0069 4 597.39 0.00 0.00 150.00 447.39 0.0103 5 744.66 0.00 0.00 150.00 594.66 0.0137 6 902.04 0.00 0.00 150.00 752.04 0.0173 7 1160.60 0.00 0.00 150.00 1010.60 0.0232 8 1398.93 0.00 0.00 150.00 1248.93 0.0287 9 1748.55 0.00 0.00 150.00 1598.55 0.0367 10 2077.94 0.00 0.00 150.00 1927.94 0.0443 11 2538.87 0.00 0.00 150.00 2388.87 0.0548 12 2949.21 0.00 0.00 150.00 2799.21 0.0643 13 3501.20 0.00 0.00 150.00 3351.20 0.0769 14 4174.61 0.00 0.00 150.00 4024.61 0.0924 15 5414.64 0.00 0.00 150.00 5264.64 0.1209 16 6654.67 0.00 0.00 150.00 6504.67 0.1493 17 6852.52 0.00 0.00 150.00 6702.52 0.1539 18 6908.72 0.00 0.00 150.00 6758.72 0.1552 119 OF 144 PROJECT: CAL. ART BY: AMG DATE: 8/22/18 UNIT XSECTIONAL ACCUM. ADJ. VOL.(CF)PERC.JOB: 201801214 SECTION AREA ADJ. AREA UNIT MATRIX AREA(SF)TTL.LEN.(FT) 10/10H 1.4962 26.18084 6807.02 1560.00 260.00 9/10H 2.3862 24.68462 6418.00 UNIT HT (IN) 8/10H 2.8715 22.2984 5797.58 60.00 7/10H 3.1140 19.42692 5051.00 . 6/10H 3.2225 16.31292 4241.36 5/10H 3.2225 13.09042 3403.51 4/10H 3.1140 9.86792 2565.66 BOTTOM ELEV. 3/10H 2.8715 6.75392 1756.02 51.68 2/10H 2.3862 3.88244 1009.43 1/10H 1.4962 1.49622 389.02 PERIOD DEPTH W.S. ELEV. INCR/DECR OK/OVERFLOW 1 0.10 51.78 OK 2 0.20 51.88 INC OK 3 0.39 52.07 INC OK 4 0.72 52.40 INC OK 5 0.79 52.47 INC OK 6 0.87 52.55 INC OK 7 1.29 52.97 INC OK 8 1.36 53.04 INC OK 9 1.46 53.14 INC OK 10 1.88 53.56 INC OK 11 1.97 53.65 INC OK 12 2.41 54.09 INC OK 13 2.49 54.17 INC OK 14 2.97 54.65 INC OK 15 3.95 55.63 INC OK 16 4.98 56.66 INC OK 17 4.99 56.67 INC OK 18 5.00 56.68 PEAK OK 0.00 1.00 2.00 3.00 4.00 5.00 6.00 123456789101112131415161718DEPTH IN FEETPERIOD IN 10 MINUTE INCREMENTS DEPTH IN UNDERGROUND STORAGE 120 OF 144 RCFC &WCD'S SYNTHETIC UNIT HYDROGRAPH METHOD PROJECT: CAL. ART BASIC DATA CALCULATION FORM BY: AMG DATE: 8/22/18 JOB #: 201801214 [1] CONCENTRATION POINT 1 [2] AREA DESIGNATION A POST CONSTRUCTION [3] AREA - SQ INCHES - [4] AREA ADJUSTMENT FACTOR - [5] AREA ACRES 1.2500 [6] L-INCHES 0.66 [7]L-ADJUSTMENT FACTOR 0.66 [8]L-MILES ( [6]*[7] ) 0.073 [9] LCA - INCHES - [10]LCA - MILES ( [7]*[9] ) 0.018 [11] ELEVATION OF HEADWATER 62.00 [12] ELEVATION OF CONCENTRATION POINT 1.32 [13] H- FEET ( [11]-[12] ) 60.68 [14] S - FEET/MILE ( [13/[8] ) 832.18 [15] S**0.5 28.85 [16] L*LCA/S**.5 ( [8]*[10]/[15] ) 0.00005 [17] AVERAGE MANNING "N" 0.02 [18] LAG TIME - HOURS ( 24*[17]*[16]**0.38 ) (PLATE E-3) 0.017004602 [19] LAG TIME - MINUTES ( 60*[18] ) 1.02 [20] 25% OF LAG TIME ( 0.25*[19] ) 0.26 [21] 40% OF LAG TIME ( 0.40*[19] ) 0.41 [22] UNIT TIME - MINUTES ( 25-[21] ) 24.59 `` RAINFALL DATA [1] SOURCE RCFCWCD [2] FREQUENCY - YEARS 100YR 6HR [3] DURATION: 3 HOUR 6 HOUR 24 HOUR [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] POINT AREA [5]AVG. POINT AREA [9]AVG. POINT AREA [13]AVG. RAIN SQ Σ [5] POINT RAIN SQ Σ [9] POINT RAIN SQ Σ [13] POINT INCHES INCHES RAIN IN. INCHES INCHES RAIN IN. INCHES INCHES RAIN IN. 2.23 - - 2.23 2.82 - - 2.82 4.51 - - 4.51 Σ [5]=-Σ [7]= 2.23 Σ [9]=-Σ [11]= 2.82 Σ [13]=-Σ [15]= 4.51 [16] AREAL ADJ FACTOR 1 (SEE PLATE E-5.8)11 [17] ADJ.AVG.POINT RAIN 2.23 ([16]* Σ [7],ETC)2.82 4.51 121 OF 144 122 OF 144 RCFC &WCD'S SYNTHETIC UNIT HYDROGRAPH METHOD PROJECT: CAL. ART UNIT HYDROGRAPH AND EFFECTIVE RAIN CALCULATION SHEET BY: AMG DATE: 8/22/18 JOB #: 201801214 [1] CONCENTRATION POINT 1 [2] AREA DESIGNATION A POST CONSTRUCTION [3] DRAINAGE AREA - ACRES 1.2500 [4] ULTIMATE DISCHARGE-CFS-HRS/IN (645*[3]N/A [5] UNIT TIME - MINUTES 15 [6] LAG TIME-MINUTES 1.02 [7] UNIT TIME - PERCENT OF LAG (100*[5]/[6])N/A [8] S-CURVE DESERT [9] STORM FREQUENCY & DURATION 100YR 6HR [10] TOTAL ADJUSTED STORM RAIN-INCHES 2.82 [11] VARIABLE LOSS RATE (AVG) - IN/HR 0 [12] MINIMUM LOSS RATE (FOR VAR. LOSS)-IN/HR 0 [13] CONSTANT LOSS RATE - IN/HR 0.04845 [14] LOW LOSS RATE-PERCENT 90 UNIT HYDROGRAPH [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] UNIT TIME CULMULATIVE DISTRIB. UNIT PATTERN STORM LOSS EFFECTIVE FLOW TIME PERCENT AVERAGE GRAPH HYDROGRAPH PERCENT RAIN RATE RAIN CFS PERIOD OF LAG PERCENT OF PERCENT CFS-HRS/IN (PL E-5.9) IN/HR IN/HR IN/HR m [7]*[15] ULTIMATE [17]m- [4]*[18]60[10][20][21]-[22] DISCHARGE [17]m-1 100 100[5] MAX LOW (S-GRAPH) 1 1.70 0.192 0.05 - 0.143 0.18 2 1.90 0.214 0.05 - 0.166 0.21 3 2.10 0.237 0.05 - 0.188 0.24 4 2.20 0.248 0.05 - 0.200 0.25 5 2.40 0.271 0.05 - 0.222 0.28 6 2.40 0.271 0.05 - 0.222 0.28 7 2.40 0.271 0.05 - 0.222 0.28 8 2.50 0.282 0.05 - 0.234 0.29 9 2.60 0.293 0.05 - 0.245 0.31 10 2.70 0.305 0.05 - 0.256 0.32 11 2.80 0.316 0.05 - 0.267 0.33 12 3.00 0.338 0.05 - 0.290 0.36 13 3.20 0.361 0.05 - 0.313 0.39 14 3.60 0.406 0.05 - 0.358 0.45 15 4.30 0.485 0.05 - 0.437 0.55 16 43334.00 4.70 0.530 0.05 - 0.482 0.60 17 5.40 0.609 0.05 - 0.561 0.70 18 6.20 0.699 0.05 - 0.651 0.81 19 6.90 0.846 0.05 - 0.798 1.00 20 7.50 1.196 0.05 - 1.147 1.43 21 10.60 1.636 0.05 - 1.587 1.98 22 14.50 0.384 0.05 - 0.335 0.42 23 3.40 0.113 0.05 - 0.064 0.08 24 1.00 0.113 0.05 - 0.064 0.08 0.00 CF A/G STORAGE 6807.02 CF U/G STORAGE 5289.45 CF PERC LOSS IN 6 HRS 12096.47 CF PROVIDED 0.00 CF DISCHARGED Σ=100%Σ= 9.45 6079.19 CF DISCHARGES AT PRECONSTRUCTION 9.45 IN/HR*0.25= 2.3629 " 2.3629 " * 0.083 * 1.2500 ACRES= 0.2461 AC FT= 10721.75 CF 123 OF 144 PROJECT: CAL. ART BY: AMG DATE: 8/22/18 100 YR / 6 HR JOB #: 201801214 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 1 2 3 4 5 6 7 8 9 101112131415161718192021222324IN/HRPERIOD IN 15 MINUTE INCREMENTS RAINFALL INTENSITY (IN/HR) 0 20 40 60 80 100 120 DISCHARGE IN PERCENT OF ULTIMATE DISCHARGE (K)TIME IN PERCENT OF LAG S-CURVE DESERT AREA 124 OF 144 PROJECT: CAL. ART BY: AMG PERC. RATE (IN/HR)=0.00 DATE:8/22/18 JOB #:201801214 ACCUM.ADD.PERC.ADD.ADJUSTED ACRE PERIOD VOL.(CF)FLOWS(CF)LOSSES(CF)LOSSED(CF)ACCUM.VOL.(CF)FEET 1 162.56 0.00 0.00 162.56 0.00 0.0000 2 188.15 0.00 0.00 188.15 0.00 0.0000 3 213.74 0.00 0.00 213.74 0.00 0.0000 4 226.54 0.00 0.00 225.00 1.54 0.0000 5 253.66 0.00 0.00 225.00 28.66 0.0007 6 280.79 0.00 0.00 225.00 55.79 0.0013 7 307.92 0.00 0.00 225.00 82.92 0.0019 8 347.84 0.00 0.00 225.00 122.84 0.0028 9 400.56 0.00 0.00 225.00 175.56 0.0040 10 466.07 0.00 0.00 225.00 241.07 0.0055 11 544.38 0.00 0.00 225.00 319.38 0.0073 12 648.28 0.00 0.00 225.00 423.28 0.0097 13 777.77 0.00 0.00 225.00 552.77 0.0127 14 958.44 0.00 0.00 225.00 733.44 0.0168 15 1228.68 0.00 0.00 225.00 1003.68 0.0230 16 1550.09 0.00 0.00 225.00 1325.09 0.0304 17 1961.08 0.00 0.00 225.00 1736.08 0.0399 18 2474.43 0.00 0.00 225.00 2249.43 0.0516 19 3154.11 0.00 0.00 225.00 2929.11 0.0672 20 4230.45 0.00 0.00 225.00 4005.45 0.0920 21 5805.80 0.00 0.00 225.00 5580.80 0.1281 22 5960.88 0.00 0.00 225.00 5735.88 0.1317 23 5808.87 0.00 0.00 225.00 5583.87 0.1282 24 5656.87 0.00 0.00 225.00 5431.87 0.1247 125 OF 144 PROJECT: CAL. ART BY: AMG DATE: 8/22/18 JOB #: 201801214 UNIT XSECTIONAL ACCUM. ADJ. VOL.(CF)PERC. SECTION AREA ADJ. AREA UNIT MATRIX AREA(SF)TTL.LEN.(FT) 10/10H 1.4962 26.18084 6807.02 1560.00 260.00 9/10H 2.3862 24.68462 6418.00 UNIT HT (IN) 8/10H 2.8715 22.2984 5797.58 60.00 7/10H 3.1140 19.42692 5051.00 . 6/10H 3.2225 16.31292 4241.36 5/10H 3.2225 13.09042 3403.51 4/10H 3.1140 9.86792 2565.66 BOTTOM ELEV. 3/10H 2.8715 6.75392 1756.02 51.68 2/10H 2.3862 3.88244 1009.43 1/10H 1.4962 1.49622 389.02 PERIOD DEPTH W.S. ELEV. INCR/DECR OK/OVERFLOW 1 0.00 0.00 OK 2 0.00 0.00 FLAT OK 3 0.00 0.00 FLAT OK 4 0.00 0.00 INC OK 5 0.04 0.04 INC OK 6 0.07 0.07 INC OK 7 0.11 0.11 INC OK 8 0.16 0.16 INC OK 9 0.23 0.23 INC OK 10 0.31 0.31 INC OK 11 0.41 0.41 INC OK 12 0.71 0.71 INC OK 13 0.77 0.77 INC OK 14 0.86 0.86 INC OK 15 1.00 1.00 INC OK 16 1.38 1.38 INC OK 17 1.49 1.49 INC OK 18 1.94 1.94 INC OK 19 2.43 2.43 INC OK 20 2.97 2.97 INC OK 21 3.98 3.98 INC OK 22 3.99 3.99 PEAK OK 23 3.98 3.98 DEC OK 24 3.97 3.97 DEC OK 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 123456789101112131415161718192021222324DEPTH IN FEETPERIOD IN 15 MINUTE INCREMENTS DEPTH IN UNDERGROUND STORAGE 126 OF 144 RCFC &WCD'S SYNTHETIC UNIT HYDROGRAPH METHOD PROJECT: CAL. ART BASIC DATA CALCULATION FORM BY: AMG DATE: 8/22/18 JOB #: 201801214 [1] CONCENTRATION POINT 1 [2] AREA DESIGNATION A POSTCONSTRUCTION [3] AREA - SQ INCHES - [4] AREA ADJUSTMENT FACTOR - [5] AREA ACRES 1.2500 [6] L-INCHES 0.66 [7]L-ADJUSTMENT FACTOR 0.66 [8]L-MILES ( [6]*[7] ) 0.073 [9] LCA - INCHES - [10]LCA - MILES ( [7]*[9] ) 0.018 [11] ELEVATION OF HEADWATER 62.00 [12] ELEVATION OF CONCENTRATION POINT 1.32 [13] H- FEET ( [11]-[12] ) 60.68 [14] S - FEET/MILE ( [13/[8] ) 832.18 [15] S**0.5 28.85 [16] L*LCA/S**.5 ( [8]*[10]/[15] ) 0.00005 [17] AVERAGE MANNING "N" 0.02 [18] LAG TIME - HOURS ( 24*[17]*[16]**0.38 ) (PLATE E-3) 0.0170046 [19] LAG TIME - MINUTES ( 60*[18] ) 1.02 [20] 25% OF LAG TIME ( 0.25*[19] ) 0.26 [21] 40% OF LAG TIME ( 0.40*[19] ) 0.41 [22] UNIT TIME - MINUTES ( 25-[21] ) 24.59 `` RAINFALL DATA [1] SOURCE RCFCWCD [2] FREQUENCY - YEARS 100YR 24HR [3] DURATION: 3 HOUR 6 HOUR 24 HOUR [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] POINT AREA [5]AVG. POINT AREA [9]AVG. POINT AREA [13]AVG. RAIN SQ Σ [5] POINT RAIN SQ Σ [9] POINT RAIN SQ Σ [13] POINT INCHES INCHES RAIN IN. INCHES INCHES RAIN IN. INCHES INCHES RAIN IN. 2.23 - - 2.23 2.82 - - 2.82 4.51 - - 4.51 Σ [5]=-Σ [7]= 2.23 Σ [9]=-Σ [11]= 2.82 Σ [13]=-Σ [15]= 4.51 [16] AREAL ADJ FACTOR 1 (SEE PLATE E-5.8)11 [17] ADJ.AVG.POINT RAIN 2.23 ([16]* Σ [7],ETC)2.82 4.51 127 OF 144 128 OF 144 RCFC &WCD'S SYNTHETIC UNIT HYDROGRAPH METHOD PROJECT: CAL. ART UNIT HYDROGRAPH AND EFFECTIVE RAIN CALCULATION SHEET BY: AMG DATE: 8/22/18 JOB #: 201801214 [1] CONCENTRATION POINT 1 [2] AREA DESIGNATION A POSTCONSTRUCTION [3] DRAINAGE AREA - ACRES 1.2500 [4] ULTIMATE DISCHARGE-CFS-HRS/IN (645*[3]N/A [5] UNIT TIME - MINUTES 15 [6] LAG TIME-MINUTES 1.02 [7] UNIT TIME - PERCENT OF LAG (100*[5]/[6])N/A [8] S-CURVE DESERT [9] STORM FREQUENCY & DURATION 100YR 24HR [10] TOTAL ADJUSTED STORM RAIN-INCHES 4.51 [11] VARIABLE LOSS RATE (AVG) - IN/HR 0.00089722 [12] MINIMUM LOSS RATE (FOR VAR. LOSS)-IN/HR 0.04845 [13] CONSTANT LOSS RATE - IN/HR -[14] LOW LOSS RATE-PERCENT 90 UNIT HYDROGRAPH [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] UNIT TIME CULMULATIVE DISTRIB. UNIT PATTERN STORM LOSS EFFECTIVE FLOW TIME PERCENT AVERAGE GRAPH HYDROGRAPH PERCENT RAIN RATE RAIN CFS PERIOD OF LAG PERCENT OF PERCENT CFS-HRS/IN (PL E-5.9) IN/HR IN/HR IN/HR m [7]*[15] ULTIMATE [17]m- [4]*[18]60[10][20][21]-[22] DISCHARGE [17]m-1 100 100[5] MAX LOW (S-GRAPH) 1 0.20 0.036 0.171 0.032 0.00 0.00 2 0.30 0.054 0.169 0.049 0.01 0.01 3 0.30 0.054 0.167 0.049 0.01 0.01 4 0.40 0.072 0.165 0.065 0.01 0.01 5 0.30 0.054 0.163 0.049 0.01 0.01 6 0.30 0.054 0.161 0.049 0.01 0.01 7 0.30 0.054 0.159 0.049 0.01 0.01 8 0.40 0.072 0.157 0.065 0.01 0.01 9 0.40 0.072 0.156 0.065 0.01 0.01 10 0.40 0.072 0.154 0.065 0.01 0.01 11 0.50 0.090 0.152 0.081 0.01 0.01 12 0.50 0.090 0.150 0.081 0.01 0.01 13 0.50 0.090 0.148 0.081 0.01 0.01 14 0.50 0.090 0.146 0.081 0.01 0.01 15 0.50 0.090 0.144 0.081 0.01 0.01 16 43334.00 0.60 0.108 0.143 0.097 0.01 0.01 17 0.60 0.108 0.141 0.097 0.01 0.01 18 0.70 0.126 0.139 0.114 0.01 0.02 19 0.70 0.126 0.137 0.114 0.01 0.02 20 0.80 0.144 0.135 0.130 0.01 0.01 21 0.60 0.108 0.134 0.097 0.01 0.01 22 0.70 0.126 0.132 0.114 0.01 0.02 23 0.80 0.144 0.130 0.130 0.01 0.02 24 0.80 0.144 0.128 0.130 0.02 0.02 25 0.90 0.162 0.127 0.146 0.04 0.04 26 0.90 0.162 0.125 0.146 0.04 0.05 27 1.00 0.180 0.123 0.162 0.06 0.07 28 1.00 0.180 0.122 0.162 0.06 0.07 29 1.00 0.180 0.120 0.162 0.06 0.08 30 1.10 0.198 0.118 0.179 0.08 0.10 31 1.2 0.216 0.117 0.195 0.10 0.12 32 1.30 0.235 0.115 0.211 0.12 0.15 33 1.50 0.271 0.114 0.244 0.16 0.20 34 1.50 0.271 0.112 0.244 0.16 0.20 35 1.60 0.289 0.110 0.260 0.18 0.22 36 1.70 0.307 0.109 0.276 0.20 0.25 129 OF 144 RCFC &WCD'S SYNTHETIC UNIT HYDROGRAPH METHOD PROJECT: CAL. ART UNIT HYDROGRAPH AND EFFECTIVE RAIN CALCULATION SHEET BY: AMG DATE: 8/22/18 JOB #: 201801214 [1] CONCENTRATION POINT 1 [2] AREA DESIGNATION A POSTCONSTRUCTION [3] DRAINAGE AREA - ACRES 1.2500 [4] ULTIMATE DISCHARGE-CFS-HRS/IN (645*[3]N/A [5] UNIT TIME - MINUTES 15 [6] LAG TIME-MINUTES 1.02 [7] UNIT TIME - PERCENT OF LAG (100*[5]/[6])N/A [8] S-CURVE DESERT [9] STORM FREQUENCY & DURATION 100YR 24HR [10] TOTAL ADJUSTED STORM RAIN-INCHES 4.51 [11] VARIABLE LOSS RATE (AVG) - IN/HR 0.00089722 [12] MINIMUM LOSS RATE (FOR VAR. LOSS)-IN/HR 0.04845 [13] CONSTANT LOSS RATE - IN/HR -[14] LOW LOSS RATE-PERCENT 90 UNIT HYDROGRAPH [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] UNIT TIME CULMULATIVE DISTRIB. UNIT PATTERN STORM LOSS EFFECTIVE FLOW TIME PERCENT AVERAGE GRAPH HYDROGRAPH PERCENT RAIN RATE RAIN CFS PERIOD OF LAG PERCENT OF PERCENT CFS-HRS/IN (PL E-5.9) IN/HR IN/HR IN/HR m [7]*[15] ULTIMATE [17]m- [4]*[18]60[10][20][21]-[22] DISCHARGE [17]m-1 100 100[5] MAX LOW (S-GRAPH) 37 1.90 0.343 0.107 0.308 0.24 0.294 38 2.00 0.361 0.106 0.325 0.25 0.319 39 2.10 0.379 0.104 0.341 0.27 0.343 40 2.20 0.397 0.103 0.357 0.29 0.368 41 1.50 0.271 0.101 0.244 0.17 0.212 42 1.50 0.271 0.100 0.244 0.17 0.213 43 2.00 0.361 0.098 0.325 0.26 0.328 44 2.00 0.361 0.097 0.325 0.26 0.330 45 1.90 0.343 0.096 0.308 0.25 0.309 46 1.90 0.343 0.094 0.308 0.25 0.311 47 1.70 0.307 0.093 0.276 0.21 0.267 48 1.80 0.325 0.091 0.292 0.23 0.292 49 2.50 0.451 0.090 0.406 0.36 0.451 50 2.60 0.469 0.089 0.422 0.38 0.475 51 2.80 0.505 0.087 0.455 0.42 0.522 52 2.90 0.523 0.086 0.471 0.44 0.546 53 3.40 0.613 0.085 0.552 0.53 0.661 54 3.40 0.613 0.083 0.552 0.53 0.662 55 2.30 0.415 0.082 0.373 0.33 0.416 56 2.30 0.415 0.081 0.373 0.33 0.418 57 2.70 0.487 0.080 0.438 0.41 0.509 58 2.60 0.469 0.078 0.422 0.39 0.488 59 2.60 0.469 0.077 0.422 0.39 0.490 60 2.50 0.451 0.076 0.406 0.37 0.469 61 2.40 0.433 0.075 0.390 0.36 0.448 62 2.30 0.415 0.074 0.373 0.34 0.426 63 1.90 0.343 0.073 0.308 0.27 0.338 64 1.90 0.343 0.072 0.308 0.27 0.339 65 0.40 0.072 0.070 0.065 0.00 0.002 66 0.40 0.072 0.069 0.065 0.00 0.003 67 0.30 0.054 0.068 0.049 0.01 0.007 68 0.30 0.054 0.067 0.049 0.01 0.007 69 0.50 0.090 0.066 0.081 0.02 0.030 70 0.50 0.090 0.065 0.081 0.02 0.031 71 0.50 0.090 0.064 0.081 0.03 0.032 72 0.40 0.072 0.063 0.065 0.01 0.011 130 OF 144 RCFC &WCD'S SYNTHETIC UNIT HYDROGRAPH METHOD PROJECT: CAL. ART UNIT HYDROGRAPH AND EFFECTIVE RAIN CALCULATION SHEET BY: AMG DATE: 8/22/18 JOB #: 201801214 [1] CONCENTRATION POINT 1 [2] AREA DESIGNATION A POSTCONSTRUCTION [3] DRAINAGE AREA - ACRES 1.2500 [4] ULTIMATE DISCHARGE-CFS-HRS/IN (645*[3]N/A [5] UNIT TIME - MINUTES 15 [6] LAG TIME-MINUTES 1.02 [7] UNIT TIME - PERCENT OF LAG (100*[5]/[6])N/A [8] S-CURVE DESERT [9] STORM FREQUENCY & DURATION 100YR 24HR [10] TOTAL ADJUSTED STORM RAIN-INCHES 4.51 [11] VARIABLE LOSS RATE (AVG) - IN/HR 0.00089722 [12] MINIMUM LOSS RATE (FOR VAR. LOSS)-IN/HR 0.04845 [13] CONSTANT LOSS RATE - IN/HR 0.18 [14] LOW LOSS RATE-PERCENT 90 UNIT HYDROGRAPH [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] UNIT TIME CULMULATIVE DISTRIB. UNIT PATTERN STORM LOSS EFFECTIVE FLOW TIME PERCENT AVERAGE GRAPH HYDROGRAPH PERCENT RAIN RATE RAIN CFS PERIOD OF LAG PERCENT OF PERCENT CFS-HRS/IN (PL E-5.9) IN/HR IN/HR IN/HR m [7]*[15] ULTIMATE [17]m- [4]*[18]60[10][20][21]-[22] DISCHARGE [17]m-1 100 100[5] MAX LOW (S-GRAPH) 73 0.40 0.072 0.062 0.065 0.01 0.012 74 0.40 0.072 0.061 0.065 0.01 0.013 75 0.30 0.054 0.061 0.049 0.01 0.007 76 0.20 0.036 0.060 0.032 0.00 0.005 77 0.30 0.054 0.059 0.049 0.01 0.007 78 0.40 0.072 0.058 0.065 0.01 0.018 79 0.30 0.054 0.057 0.049 0.01 0.007 80 0.20 0.036 0.057 0.032 0.00 0.005 81 0.30 0.054 0.056 0.049 0.01 0.007 82 0.30 0.054 0.055 0.049 0.01 0.007 83 0.30 0.054 0.054 0.049 0.01 0.007 84 0.20 0.036 0.054 0.032 0.00 0.005 85 0.30 0.054 0.053 0.049 0.00 0.001 86 0.20 0.036 0.052 0.032 0.00 0.005 87 0.30 0.054 0.052 0.049 0.00 0.003 88 0.20 0.036 0.051 0.032 0.00 0.005 89 0.30 0.054 0.051 0.049 0.00 0.004 90 0.20 0.036 0.050 0.032 0.00 0.005 91 0.20 0.036 0.050 0.032 0.00 0.005 92 0.20 0.036 0.050 0.032 0.00 0.005 93 0.20 0.036 0.049 0.032 0.00 0.005 94 0.20 0.036 0.049 0.032 0.00 0.005 95 0.20 0.036 0.049 0.032 0.00 0.005 96 0.20 0.036 0.048 0.032 0.00 0.005 Σ=100%Σ= 10.664 6807.02 CF U/G STORAGE 10.66 IN/HR*0.25 2.67 " 12092.66 CF PERC LOSS IN 24 HRS 2.67 " * 0.083 * 1.2500 ACRES= 18899.68 CF PROVIDED 0.2777 AC FT= 12097.24 CF 0.00 CF DISCHARGED 2643.26 CF DISCHARGES AT PRECONSTRUCTION 131 OF 144 PROJECT: CAL. ART BY: AMG 100 YR / 24 HR DATE: 8/22/18 JOB #: 201801214 0.00 0.10 0.20 0.30 0.40 0.50 0.60 1 4 7 1013161922252831343740434649525558616467707376798285889194IN/HRPERIOD IN 15 MINUTE INCREMENTS RAINFALL INTENSITY (IN/HR) 0 20 40 60 80 100 120 DISCHARGE IN PERCENT OF ULTIMATE DISCHARGE (K)TIME IN PERCENT OF LAG S-CURVE DESERT AREA 132 OF 144 PROJECT: CAL. ART BY: AMG DATE: 8/22/18 JOB #: 201801214 PERC. RATE (IN/HR)=0.00 ACCUM.ADD.PERC.ADD.ADJUSTED ACRE PERIOD VOL.(CF)FLOWS(CF)LOSSES(CF)LOSSED(CF)ACCUM.VOL.(CF)FEET 1 4.09 0.00 0.00 4.09 0.00 0.0000 2 6.14 0.00 0.00 6.14 0.00 0.0000 3 6.14 0.00 0.00 6.14 0.00 0.0000 4 8.19 0.00 0.00 8.19 0.00 0.0000 5 6.14 0.00 0.00 6.14 0.00 0.0000 6 6.14 0.00 0.00 6.14 0.00 0.0000 7 6.14 0.00 0.00 6.14 0.00 0.0000 8 8.19 0.00 0.00 8.19 0.00 0.0000 9 8.19 0.00 0.00 8.19 0.00 0.0000 10 8.19 0.00 0.00 8.19 0.00 0.0000 11 10.23 0.00 0.00 10.23 0.00 0.0000 12 10.23 0.00 0.00 10.23 0.00 0.0000 13 10.23 0.00 0.00 10.23 0.00 0.0000 14 10.23 0.00 0.00 10.23 0.00 0.0000 15 10.23 0.00 0.00 10.23 0.00 0.0000 16 12.28 0.00 0.00 12.28 0.00 0.0000 17 12.28 0.00 0.00 12.28 0.00 0.0000 18 14.32 0.00 0.00 14.32 0.00 0.0000 19 14.32 0.00 0.00 14.32 0.00 0.0000 20 10.09 0.00 0.00 10.09 0.00 0.0000 21 12.28 0.00 0.00 12.28 0.00 0.0000 22 14.32 0.00 0.00 14.32 0.00 0.0000 23 16.02 0.00 0.00 16.02 0.00 0.0000 24 17.97 0.00 0.00 17.97 0.00 0.0000 25 40.37 0.00 0.00 40.37 0.00 0.0000 26 42.29 0.00 0.00 42.29 0.00 0.0000 27 64.65 0.00 0.00 64.65 0.00 0.0000 28 66.54 0.00 0.00 66.54 0.00 0.0000 29 68.42 0.00 0.00 68.42 0.00 0.0000 30 90.74 0.00 0.00 90.74 0.00 0.0000 31 113.04 0.00 0.00 113.04 0.00 0.0000 32 135.34 0.00 0.00 135.34 0.00 0.0000 33 178.07 0.00 0.00 178.07 0.00 0.0000 34 179.87 0.00 0.00 179.87 0.00 0.0000 35 202.11 0.00 0.00 202.11 0.00 0.0000 36 224.34 0.00 0.00 224.34 0.00 0.0000 37 267.02 0.00 0.00 225.00 42.02 0.0010 38 331.23 0.00 0.00 225.00 106.23 0.0024 39 417.63 0.00 0.00 225.00 192.63 0.0044 40 526.18 0.00 0.00 225.00 301.18 0.0069 41 493.18 0.00 0.00 225.00 268.18 0.0062 42 461.85 0.00 0.00 225.00 236.85 0.0054 43 534.48 0.00 0.00 225.00 309.48 0.0071 44 608.75 0.00 0.00 225.00 383.75 0.0088 45 664.17 0.00 0.00 225.00 439.17 0.0101 46 721.18 0.00 0.00 225.00 496.18 0.0114 47 738.86 0.00 0.00 225.00 513.86 0.0118 48 778.56 0.00 0.00 225.00 553.56 0.0127 133 OF 144 PROJECT: CAL. ART BY: AMG DATE: 8/22/18 JOB #: 201801214 PERC. RATE (IN/HR)=0.00 ACCUM.ADD.PERC.ADD.ADJUSTED ACRE PERIOD VOL.(CF)FLOWS(CF)LOSSES(CF)LOSSED(CF)ACCUM.VOL.(CF)FEET 49 963.05 0.00 0.00 225.00 738.05 0.0169 50 1169.54 0.00 0.00 225.00 944.54 0.0217 51 1418.46 0.00 0.00 225.00 1193.46 0.0274 52 1689.34 0.00 0.00 225.00 1464.34 0.0336 53 2064.01 0.00 0.00 225.00 1839.01 0.0422 54 2440.13 0.00 0.00 225.00 2215.13 0.0509 55 2592.60 0.00 0.00 225.00 2367.60 0.0544 56 2746.48 0.00 0.00 225.00 2521.48 0.0579 57 2983.62 0.00 0.00 225.00 2758.62 0.0633 58 3201.67 0.00 0.00 225.00 2976.67 0.0683 59 3421.09 0.00 0.00 225.00 3196.09 0.0734 60 3621.38 0.00 0.00 225.00 3396.38 0.0780 61 3802.53 0.00 0.00 225.00 3577.53 0.0821 62 3964.51 0.00 0.00 225.00 3739.51 0.0858 63 4045.93 0.00 0.00 225.00 3820.93 0.0877 64 4128.60 0.00 0.00 225.00 3903.60 0.0896 65 3905.55 0.00 0.00 225.00 3680.55 0.0845 66 3683.73 0.00 0.00 225.00 3458.73 0.0794 67 3464.87 0.00 0.00 225.00 3239.87 0.0744 68 3246.01 0.00 0.00 225.00 3021.01 0.0694 69 3048.16 0.00 0.00 225.00 2823.16 0.0648 70 2851.45 0.00 0.00 225.00 2626.45 0.0603 71 2655.83 0.00 0.00 225.00 2430.83 0.0558 72 2440.84 0.00 0.00 225.00 2215.84 0.0509 73 2215.84 0.00 0.00 225.00 1990.84 0.0457 74 2001.90 0.00 0.00 225.00 1776.90 0.0408 75 1788.99 0.00 0.00 225.00 1563.99 0.0359 76 1570.13 0.00 0.00 225.00 1345.13 0.0309 77 1349.22 0.00 0.00 225.00 1124.22 0.0258 78 1130.36 0.00 0.00 225.00 905.36 0.0208 79 921.33 0.00 0.00 225.00 696.33 0.0160 80 702.47 0.00 0.00 225.00 477.47 0.0110 81 481.56 0.00 0.00 225.00 256.56 0.0059 82 262.70 0.00 0.00 225.00 37.70 0.0009 83 43.84 0.00 0.00 43.84 0.00 0.0000 84 6.14 0.00 0.00 6.14 0.00 0.0000 85 4.09 0.00 0.00 4.09 0.00 0.0000 86 1.20 0.00 0.00 1.20 0.00 0.0000 87 4.09 0.00 0.00 4.09 0.00 0.0000 88 2.54 0.00 0.00 2.54 0.00 0.0000 89 4.09 0.00 0.00 4.09 0.00 0.0000 90 3.74 0.00 0.00 3.74 0.00 0.0000 91 4.09 0.00 0.00 4.09 0.00 0.0000 92 4.09 0.00 0.00 4.09 0.00 0.0000 93 4.09 0.00 0.00 4.09 0.00 0.0000 94 4.09 0.00 0.00 4.09 0.00 0.0000 95 4.09 0.00 0.00 4.09 0.00 0.0000 96 4.09 0.00 0.00 4.09 0.00 0.0000 134 OF 144 PROJECT: CAL. ART BY: AMG DATE: 8/22/18 UNIT XSECTIONAL ACCUM. ADJ. VOL.(CF)PERC.JOB #: 201801214 SECTION AREA ADJ. AREA IN PIPE AREA(SF)TTL.LEN.(FT) 10/10H 1.4962 26.18084 6807.02 1560.00 260.00 9/10H 2.3862 24.68462 6418.00 UNIT HT (IN) 8/10H 2.8715 22.2984 5797.58 60.00 7/10H 3.1140 19.42692 5051.00 . 6/10H 3.2225 16.31292 4241.36 5/10H 3.2225 13.09042 3403.51 4/10H 3.1140 9.86792 2565.66 BOTTOM ELEV. 3/10H 2.8715 6.75392 1756.02 51.68 2/10H 2.3862 3.88244 1009.43 1/10H 1.4962 1.49622 389.02 PERIOD DEPTH W.S. ELEV. INCR/DECR OK/OVERFLOW 1 0.00000 51.68 OK 2 0.00000 51.68 FLAT OK 3 0.00000 51.68 FLAT OK 4 0.00000 51.68 FLAT OK 5 0.00000 51.68 FLAT OK 6 0.00000 51.68 FLAT OK 7 0.00000 51.68 FLAT OK 8 0.00000 51.68 FLAT OK 9 0.00000 51.68 FLAT OK 10 0.00000 51.68 FLAT OK 11 0.00000 51.68 FLAT OK 12 0.00000 51.68 FLAT OK 13 0.00000 51.68 FLAT OK 14 0.00000 51.68 FLAT OK 15 0.00000 51.68 FLAT OK 16 0.00000 51.68 FLAT OK 17 0.00000 51.68 FLAT OK 18 0.00000 51.68 FLAT OK 19 0.00000 51.68 FLAT OK 20 0.00000 51.68 FLAT OK 21 0.00000 51.68 FLAT OK 22 0.00000 51.68 FLAT OK 23 0.00000 51.68 FLAT OK 24 0.00000 51.68 FLAT OK 25 0.00000 51.68 FLAT OK 26 0.00000 51.68 FLAT OK 27 0.00000 51.68 FLAT OK 28 0.00000 51.68 FLAT OK 29 0.00000 51.68 FLAT OK 30 0.00000 51.68 FLAT OK 31 0.00000 51.68 FLAT OK 32 0.00000 51.68 FLAT OK 33 0.00000 51.68 FLAT OK 34 0.00000 51.68 FLAT OK 35 0.00000 51.68 FLAT OK 36 0.00000 51.68 FLAT OK 37 0.05401 51.73 INC OK 38 0.13654 51.82 INC OK 39 0.24758 51.93 INC OK 40 0.38711 52.07 PEAK OK 135 OF 144 PERIOD DEPTH W.S. ELEV. INCR/DECR OK/OVERFLOW 41 0.34469 52.02 DEC OK PROJECT: CAL. ART 42 0.30442 51.98 DEC OK BY:AMG 43 0.39777 52.08 INC OK DATE:8/22/18 44 0.49323 52.17 INC OK JOB #:201801214 45 0.71753 52.40 INC OK 46 0.74577 52.43 INC OK 47 0.75453 52.43 INC OK 48 0.77419 52.45 INC OK 49 0.86558 52.55 INC OK 50 0.96785 52.65 INC OK 51 1.33982 53.02 INC OK 52 1.41695 53.10 INC OK 53 1.85839 53.54 INC OK 54 1.93169 53.61 INC OK 55 1.96140 53.64 INC OK 56 1.99139 53.67 INC OK 57 2.40526 54.09 INC OK 58 2.43729 54.12 INC OK 59 2.46953 54.15 INC OK 60 2.49895 54.18 INC OK 61 2.92174 54.60 INC OK 62 2.94084 54.62 INC OK 63 2.95044 54.63 INC OK 64 2.96018 54.64 PEAK OK 65 2.93389 54.61 DEC OK 66 2.90774 54.59 DEC OK 67 2.47596 54.16 DEC OK 68 2.44381 54.12 DEC OK 69 2.41474 54.09 DEC OK 70 2.38584 54.07 DEC OK 71 1.97372 53.65 DEC OK 72 1.93183 53.61 DEC OK 73 1.88798 53.57 DEC OK 74 1.84628 53.53 DEC OK 75 1.44532 53.13 DEC OK 76 1.38301 53.06 DEC OK 77 1.32011 53.00 DEC OK 78 0.94845 52.63 DEC OK 79 0.84491 52.52 DEC OK 80 0.73650 52.42 DEC OK 81 0.32975 52.01 DEC OK 82 0.04845 51.73 DEC OK 83 0.00000 51.68 DEC OK 84 0.00000 51.68 FLAT OK 85 0.00000 51.68 FLAT OK 86 0.00000 51.68 FLAT OK 87 0.00000 51.68 FLAT OK 88 0.00000 51.68 FLAT OK 89 0.00000 51.68 FLAT OK 90 0.00000 51.68 FLAT OK 91 0.00000 51.68 FLAT OK 92 0.00000 51.68 FLAT OK 93 0.00000 51.68 FLAT OK 94 0.00000 51.68 FLAT OK 95 0.00000 51.68 FLAT OK 96 0.00000 51.68 FLAT OK 136 OF 144 PROJECT: CAL. ART BY: AMG DATE: 8/22/18 JOB #: 201801214 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 1 4 7 1013161922252831343740434649525558616467707376798285889194DEPTH IN FEETPERIOD IN 15 MINUTE INCREMENTS DEPTH IN UNDERGROUND STORAGE 137 OF 144 138 OF 144