NCC202512_NOT Closeout Documents (3)_20230822

ENGINEERINGOAK
STORMWATER DESIGN
DESIGN REPORT
FOR
AS-BUILT
PET SUITES - HARRISBURG
SITE CONSTRUCTION PACKAGE
HARRISBURG, NORTH CAROLINA
sE�
ss.s
••••G� eCCiNt ;$
• E ••
09/30/2022
BY
OAK ENGINEERING
4929 Monroe Road
CHARLOTTE, NC 28205
NC FIRM LICENSE: P-1742

ENGINEERINGOAK
TABLE OF CONTENTS
I. NARRATIVE
INTRODUCTION
STORMWATER MANAGEMENT REQUIREMENTS
EXISTING SITE CONDITIONS
PROPOSED SITE CONDITIONS
CONCLUSIONS
II. MAPS AND FIGURES
HYDROCAD MODEL ROUTING DIAGRAM
DRAINAGE AREA MAPS
TOWN OF HUNTERSVILLE RAINFALL DATA
SOILS MAP
FEMA FIRM MAP
III. HYDROCAD MODEL OUTPUT
HYDROCAD: 1-INCH STORM EVENT (POND ONLY)
HYDROCAD: 1 YR-24HR STORM EVENT
HYDROCAD: 10YR-24HR STORM EVENT
HYDROCAD: 50YR-24HR STORM EVENT (POND ONLY)
HYDROCAD: 100YR-24HR STORM EVENT (POND ONLY)
IV�.IL 1YDROFLAY STORM Jr YAY rRJ MODEL VVTrVT
i IYDRAfLOW STORM SEWERS.10YR-241 IR STORM EVENT
i IYDRA1LOW STORM SEWERS. 100YR-241 IR STORM EVENT

ENGINEERINGOAK
INTRODUCTION
Harrisburg Pet Suites, LLC is proposing the construction of a new 10,987-sf pet boarding facility in Harrisburg, North Carolina.
The new commercial development will be located on a portion of PIN 5507-96-6061. The new parcel will be approximately
1.27 acres.
STORMWATER MANAGEMENT REQUIREMENTS
The project site is located in the Town of Harrisburg Permitting Jurisdiction. As such, the stormwater management requirements
are as follows:
1 . Peak discharge control for the lyr-24hr and 10yr-24hr storm events.
2. Discharge storage volume at a rate equal to or less than the predevelopment discharge rate for the lyr-24hr storm.
3. Minimum of 85% average annual removal for total suspended solids.
The NCDEQ Storm water Design Manualwas used as the basis for the water quality BMP design. A wet detention pond is
proposed to provide the required treatment for the proposed improvements.
EXISTING SITE CONDITIONS
The total site acreage is 1 .27 acres with young vegetation, small trees and patchy groundcover. The terrain is relative flat
with the entire site draining northeast to an existing drainage swale where it leaves the site.
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Figure 1:Existing land cover-looking southeast(Source: Google Earth)

ENGINEERINGOAK
15507=969764 IvA.S or , 1 \ G'0'n C,(�
7" SAM'S INVESTMENTS II, LLC \ \ ''°'Sr O s
4-4�'/ / DB 1TRACT 2 OF .s.e.T \ \ �°>t�Qn 9 Chi!`
i 'pry9x MB 70 PG 109 \ \ O
Rri 591..1 /., ��Is•. et PIN 550;-95-6898 .5�.� �\ \\ \ 1 •\ \\ 'y� 9L �O
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.sy NET ABEfF DB 10638 PG 242 / \
Q I -i 4 1", �Q \\ ( 1 •Oa. J '"" 134.024 SO.FT. MB/63 PG 80 / "K41(
IF ' -I. I 5 J
4'\ \ \ 1 / OR 30768 ACRES •41 ', 1! \ \\ \1 / _ / / •w•. POSE OVERLAP ARE' "� \
do s \ 1 1 —-- OR 0. 0 ACRES *�j, T
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ix „', HARRIS SQUARE, LLC s
Tgl ^ DB 12335 PG 233
rt 1PIN 5507-85-9656
' NGDOT MONUMENT•93414-15'
LNAMNC ciao NA COORDINATES:
-1 W512.927.O137 R
Figure 2:Existing Drainage Patterns(Source: Topographical Survey)
Soils on the site are predominantly Iredell loam soils (HSG-C).
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FTC
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Figure 3.:Hydrologic Soils Group map of the site(USDA Websoil Survey)
See the Maps & Figures section of this report for Drainage Area and Soils Maps.

ENGINEERINGOAK
PROPOSED SITE CONDITIONS
The proposed improvements will include a new 10,987-sf pet boarding facility and vehicular parking. These improvements
will add approximately 31,747-sf of new BUA to the site, totaling approximately 36,723-sf of BUA (66.4%). These
improvements will be treated for water quantity and water quality control by the proposed wet pond. The wet pond is sized
to treat future development to the south of the Pet Suites parcel. This off-site area is approximately 1 .76 acres and an
assumed 75% impervious.
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Below is a pre-development vs. post development comparison table.

ENGINEERINGOAK
PRE/POST SUMMARY TABLE
W N v) V, d N
15 a CV 0' 3C)
00
a)
N - c a
a G °o o°' ° o a Z Z> ote a Z m o E a� m Q c `m Q 3 rnQ u
o �Q o o
Cn o c 2 o 2 0 2 N s o N
> Sia
n o o 5- 2 0
2 0_ = a =
1" WQ 0.02 0.68 1.28 0.07/589.97 0.04/590.01 0,07 0.04
lyr-24hr 3.78 3.34 6.26 2.74/591.30 0.14/591.99 2.74
10yr-24hr 10.71 6.48 12.13 10.71 /592.02 6.85/592.97 10.71
50yr-24hr 16.56 8.86 16.60 13.69/592.51 24.39/593.09 13.69 24.39
100yr-24hr 19.36 9.98 18.68 14.83 /592.73 29.44/593.12 14.83 29.44
CONCLUSIONS
The proposed design will meet or exceed the Town of Huntersville's Stormwater Management requirements listed in this
report.

ENGINEERINGOAK
MAPS & FIGURES
HYDROCAD MODEL ROUTING DIAGRAM
DRAINAGE AREA MAPS
TOWN OF HUNTERSVILLE RAINFALL DATA
SOILS MAP
FEMA FIRM MAP

1S
PRE <9S>
FUTURE OFF-SITE
2S
/8N=)
POST TO WET POND
WET POND
(Subca Reach Pon Link Routing Diagram for Pet Suites Harrisburg SWM
Prepared by{enter your company name here}, Printed 9/21/2020
HydroCAD®10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC

Pet Suites Harrisburg SWM
Prepared by {enter your company name here} Printed 9/21/2020
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 2
Area Listing (all nodes)
Area CN Description
(acres) (subcatchment-numbers)
0.680 74 >75% Grass cover, Good, HSG C (2S, 9S)
2.020 98 Paved parking/ Building, HSG C (2S, 9S)
2.700 76 Woods/grass comb., Fair, HSG C (1 S)
5.400 84 TOTAL AREA

Pet Suites Harrisburg SWM
Prepared by {enter your company name here} Printed 9/21/2020
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 3
Soil Listing (all nodes)
Area Soil Subcatchment
(acres) Group Numbers
0.000 HSG A
0.000 HSG B
5.400 HSG C 1 S, 2S, 9S
0.000 HSG D
0.000 Other
5.400 TOTAL AREA

AS-BUILT
<los>
•
POST TO WE OND FUTU E OFF-SITE
12P
WET POND
Subcat Reach Pon Link Routing Diagram for Pet Suites Harrisburg SWM
Prepared by OAK Engineering, Printed 8/26/2022
HydroCAD®10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC

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I PREDEVELOPMENT
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It DRAINAGE AREA MAP

Hydrologic Soil Group—Cabarrus County,North Carolina
kl
532320 532330 532340 532350 532360 532370 532320 532390 532400 532410 532420
35°19'19"N I I - 35°19'19"N
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35°19'14"N r_ i 35°19'14"N
532320 532330 532340 532350 532360 532370 532360 532390 532400 532410 532420
3 3
Map Scale:1:753 if printed on A portrait(8.5"x 11")sheet.
Mete
Ed 0 10 20 40 60 rs $
Feet
0 35 70 140 210
Map projection:Web Merotor Comer coordinates:WGS84 Edge tics:UTM Zone 17N WG5584
USDA Natural Resources Web Soil Survey 3/26/2020
Conservation Service National Cooperative Soil Survey Page 1 of 4

Hydrologic Soil Group—Cabarrus County,North Carolina
MAP LEGEND MAP INFORMATION
Area of Interest(AOI) p c The soil surveys that comprise your AOI were mapped at
Area of Interest(AOI) 1:24,000.
0 C/D
Soils • D Warning:Soil Map may not be valid at this scale.
Soil Rating Polygons
l A p Not rated or not available Enlargement of maps beyond the scale of mapping can cause
misunderstanding of the detail of mapping and accuracy of soil
n A/D Water Features line placement.The maps do not show the small areas of
Streams and Canals contrasting soils that could have been shown at a more detailed
n B scale.
Transportation
Q B/D
r4-1. Rails Please rely on the bar scale on each map sheet for map
n C measurements.
ti Interstate Highways
C/D US Routes Source of Map: Natural Resources Conservation Service
Web Soil Survey URL:
0 D Major Roads Coordinate System: Web Mercator(EPSG:3857)
n Not rated or not available Local Roads
Maps from the Web Soil Survey are based on the Web Mercator
Soil Rating Lines Background projection,which preserves direction and shape but distorts
• • A distance and area.A projection that preserves area,such as the
1111 Aerial Photography Albers equal-area conic projection,should be used if more
• • A/D accurate calculations of distance or area are required.
^r B This product is generated from the USDA-NRCS certified data as
.v B/D of the version date(s)listed below.
• r C Soil Survey Area: Cabarrus County, North Carolina
Survey Area Data: Version 18,Sep 16,2019
• • CID
Soil map units are labeled(as space allows)for map scales
• • D 1:50,000 or larger.
• w Not rated or not available Date(s)aerial images were photographed: Nov 6,2019—Nov
Soil Rating Points 20,2019
p A The orthophoto or other base map on which the soil lines were
compiled and digitized probably differs from the background
O A/D imagery displayed on these maps.As a result,some minor
• B shifting of map unit boundaries may be evident.
• B/D
USDA Natural Resources Web Soil Survey 3/26/2020
Conservation Service National Cooperative Soil Survey Page 2 of 4

Hydrologic Soil Group—Cabarrus County, North Carolina
Hydrologic Soil Group
Map unit symbol Map unit name Rating Acres in AOI Percent of AOI
ArA Armenia loam,0 to 2 C/D 0.6 30.6%
percent slopes,rarely
flooded
IdA Iredell loam,0 to 2 C/D 1.4 69.4%
percent slopes
Totals for Area of Interest 2.0 100.0%
Description
Hydrologic soil groups are based on estimates of runoff potential. Soils are
assigned to one of four groups according to the rate of water infiltration when the
soils are not protected by vegetation, are thoroughly wet, and receive
precipitation from long-duration storms.
The soils in the United States are assigned to four groups (A, B, C, and D) and
three dual classes (A/D, B/D, and C/D). The groups are defined as follows:
Group A. Soils having a high infiltration rate (low runoff potential)when
thoroughly wet. These consist mainly of deep, well drained to excessively
drained sands or gravelly sands. These soils have a high rate of water
transmission.
Group B. Soils having a moderate infiltration rate when thoroughly wet. These
consist chiefly of moderately deep or deep, moderately well drained or well
drained soils that have moderately fine texture to moderately coarse texture.
These soils have a moderate rate of water transmission.
Group C. Soils having a slow infiltration rate when thoroughly wet. These consist
chiefly of soils having a layer that impedes the downward movement of water or
soils of moderately fine texture or fine texture. These soils have a slow rate of
water transmission.
Group D. Soils having a very slow infiltration rate (high runoff potential)when
thoroughly wet. These consist chiefly of clays that have a high shrink-swell
potential, soils that have a high water table, soils that have a claypan or clay
layer at or near the surface, and soils that are shallow over nearly impervious
material. These soils have a very slow rate of water transmission.
If a soil is assigned to a dual hydrologic group (ND, B/D, or C/D), the first letter is
for drained areas and the second is for undrained areas. Only the soils that in
their natural condition are in group D are assigned to dual classes.
USDA Natural Resources Web Soil Survey 3/26/2020
Conservation Service National Cooperative Soil Survey Page 3 of 4

Hydrologic Soil Group—Cabarrus County, North Carolina
Rating Options
Aggregation Method: Dominant Condition
Component Percent Cutoff.None Specified
Tie-break Rule: Higher
USDA Natural Resources Web Soil Survey 3/26/2020
Conservation Service National Cooperative Soil Survey Page 4 of 4

AFEMA May 11, 2020
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Legend North Carolina Floodplain Mapping Program
Panels Flood Hazard Areas
Political Areas AE
Stream Centerline Floodway(AE) ® 6
Cross Sections 0.2 % Chance Annual Flood Hazard
fir- IY�II�Levee �� Future Conditions 1%Annual Chance Flood Hazard °��-•�''

ENGINEERINGOAK
WET POND DESIGN
BASED ON NCDEO BMP DESIGN MANUAL
September 21, 2020

WET POND DESIGN
Mountain &Piedmont Regions
Table 10-1
SURFACE AREA REQ'D SA/DA RATIO CHART(for 85%TSS removal)
Drainage Area = 2.70 ac 85 % %imp cover avg. permanent pool depth (ft)
3 1 4 5 6 7 8 9
% Impervious = 75.00 % 10 0.51 0.43 0.37 0.30 0.27 0.25
20 0.84 0.69 0.61 0.51 0.44 0.40
Try Perm. Pool Depth = 3.0 30 1.17 0.94 0.84 0.72 0.61 0.56
40 1.51 1.24 1.09 0.91 0.78 0.71
SA/DA= 2.92 50 1.79 1.51 1.31 1.13 0.95 0.87
60 2.09 1.77 1.49 1.31 1.12 1.03
Surface Area Req'd = 0.080 ac 3,485 sf 70 2.51 2.09 1.80 1.56 1.34 1.17
Area Provided = 0.098 ac 4,265 sf 80 2.92 2.41 2.07 1.82 1.62 1.40
at Elev= 589.50 90 3.25 2.64 2.66 2.04 1.84 1.59
VOL prov'd perm pool= 0.25 ac-ft (includes Forebay)
•
Avg Depth = 2.55 ft
Coastal Region
Table 10-3
SA/DA RATIO CHART(for 90%TSS removal)
TEMP. DRAWDOWN (DETERMINE 1" STORM VOLUME) %imp cover avg. permanent pool depth (ft)
3.0 4.0 5.0 6.0 7.0 8.0 9.0
10 0.78 0.61 0.44 0.00 0.00 0.00
USE SIMPLE METHOD Rv=0.05+0.009(I) 20 1.48 1.04 0.87 0.70 0.52 0.35
Rv= 0.725 IN/IN 30 2.18 1.65 1.39 1.13 0.87 0.70
P= 1.0 IN 40 2.96 2.26 1.83 1.39 0.96 0.78
VOLUME=DESIGN RAINFALL(Rv)DA 50 3.65 2.87 2.35 1.83 1.31 0.96
60 4.35 3.31 2.78 2.26 1.741 1.13
VOLUME= 0.163 AC-FT 7,106 CF 70 5.22 3.92 3.22 2.52 1.83 1.31
VOLprov= 0.164 AC-FT at elevation 590.85 80 5.92 4.52 3.65 2.78 1.91 1.57
90 6.53 5.05 4.18 2.96 2.44 1.74
FOREBAY SIZE
PRE-BAY VOL=15-20%OF MAIN POOL VOLUME
PRE-BAY VOLreqd= 0.050 ac-ft
PRE-BAY VOLprov.= 0.048 ac-ft
Actual % Used = 19.2 %
ORIFICE SIZING ORIFICE CALCULATIONS
orifice formula Q=cA(2gh)^.5 w/c=.6
2 DAY DRAWDOWN Q2= 0.04 cfs
DIA (in) 2.0
5 DAY DRAWDOWN= Q5= 0.02 cfs Inv= 589.50
(cfs)
FROM ORIFICE CALC'S: USE 2.0 IN DIA ORIFICE Elev Q
Top 1" Stor= 590.85
Approx Draw Down Time= 2.0 days Perm. Pool = 589.50
49 hours Head = 0.45
Avg Q = 0.04 cfs
Page 1 of 1

6/3/2020 Precipitation Frequency Data Server
NOAA Atlas 14,Volume 2,Version 3
so.�`c Location name: Harrisburg, North Carolina, USA* ` '''``'
i X v. Latitude:35.3214°, Longitude: -80.6438° none
Elevation:593.48 ft** i
>, *source:ESRI Maps k,,,.. yt
**source:USGS
POINT PRECIPITATION FREQUENCY ESTIMATES
G.M.Bonnin,D.Martin,B.Lin,T.Parzybok,M.Yekta,and D.Riley
NOAA,National Weather Service,Silver Spring,Maryland
PF tabular I PF graphical I Maps & aerials
PF tabular
PDS-based point precipitation frequency estimates with 90% confidence intervals (in inches/hour)1
Average recurrence interval(years)
Duration
1 2 5 10 25 50 100 200 500 1000
5-min 4.82 5.69 6.64 7.30 8.05 8.57 9.05 9.46 9.91 I 10.2
(4.45-5.23) (5.26-6.19) (6.10-7.20) (6.70-7.91) (7.36-8.71) (7.80-9.28) (8.18-9.78) (8.51-10.2) (8.83-10.8) (9.04-11.1)
10-min 3.85 4.55 5.31 5.83 6.42 6.83 7.19 7.49 7.84 8.06
(3.55-4.18) (4.20-4.95) (4.88-5.77) (5.36-6.32) (5.87-6.95) (6.20-7.39) (6.50-7.78) (6.74-8.12) (6.98-8.51) (7.12-8.77)
15-min 3.21 3.82 4.48 4.92 5.42 5.76 6.06 I 6.30 6.58 6.74
(2.96-3.48) (3.52-4.15) (4.12-4.86) (4.52-5.33) (4.96-5.87) (5.24-6.24) (5.48-6.55) (5.67-6.83) (5.86-7.15) (5.96-7.34)
130-min 2.20 2.63 3.18 3.57 4.02 4.34 4.64 4.91 5.24 5.46
(2.03-2.39) (2.43-2.87) (2.93-3.45) (3.27-3.86) (3.67-4.35) (3.95-4.70) (4.19-5.02) (4.41-5.32) (4.66-5.69) (4.82-5.94)
60-min 1.37 1.65 2.04 2.32 2.67 2.94 3.19 3.44 3.76 3.99
I (1.26-1.49) (1.53-1.80) (1.88-2.21) (2.13-2.52) (2.44-2.89) I (2.67-3.18) I (2.89-3.46) I (3.10-3.73) (3.35-4.08) I (3.52-4.34)
2-hr 0.794 0.962 1.19 1.37 1.60 1.77 1.94 1 2.10 1 2.32 I 2.49
(0.730-0.868) (0.882-1.05) (1.09-1.30) (1.25-1.49) (1.45-1.74) (1.60-1.92) (1.74-2.11) (1.88-2.30) (2.05-2.54) (2.17-2.73)
3-hr 0.566 0.684 0.854 0.984 1.16 1.30 1.44 1.58 1.77 1.92
(0.519-0.620) (0.628-0.750) (0.782-0.935) (0.898-1.08) (1.05-1.26) (1.17-1.41) (1.29-1.56) (1.40-1.72) (1.55-1.93) (1.66-2.10)
6-hr 0.343 0.414 0.517 1 0.597 0.706 0.792 0.880 0.970 1.09 1.19
(0.315-0.375) (0.380-0.453) (0.474-0.565)1(0.546-0.652)1(0.641-0.768)1(0.715-0.861) (0.788-0.957)1 (0.860-1.06) (0.956-1.19) (1.03-1.30)
12-hr 0.202 0.244 0.306 0.356 0.423 0.477 0.534 1 0.592 0.673 0.739
(0.186-0.221) (0.225-0.268) (0.281-0.335) (0.325-0.388) (0.384-0.460) (0.430-0.518) (0.476-0.578) (0.523-0.641) (0.585-0.728) (0.632-0.800)
24-hr 0.120 0.144 0.181 0.210 0.250 0.281 0.313 0.347 0.392 0.428
(0.111-0.129) (0.134-0.156) (0.169-0.196) (0.195-0.227) (0.231-0.269) (0.260-0.302) (0.289-0.337) (0.318-0.373) (0.358-0.423) (0.390-0.462)
2-day 0.070 0.085 0.105 0.122 0.144 ' 0.162 0.180 0.198 0.224 0.244
(0.065-0.075) (0.079-0.091) (0.098-0.113) (0.113-0.131) (0.133-0.155) (0.149-0.174)1(0.165-0.193)1(0.182-0.213)1(0.205-0.241) (0.222-0.263)
3-day 0.050 0.060 0.074 0.085 0.101 0.113 0.125 0.138 I 0.156 0.170
(0.046-0.053) (0.056-0.064) (0.069-0.079) (0.079-0.091) (0.093-0.108) (0.104-0.121) (0.116-0.135) (0.127-0.148) (0.143-0.168) (0.155-0.183)
4-day 0.039 0.047 0.058 0.067 0.079 1 0.088 0.098 0.108 0.122 0.133
(0.037-0.042) (0.044-0.051) (0.054-0.062) (0.062-0.072) (0.073-0.085) (0.082-0.095) (0.091-0.105) (0.100-0.116) (0.112-0.131) (0.121-0.143)
7-day 0.026 0.031 0.038 0.043 0.050 I 0.056 0.062 0.068 0.077 0.084
(0.024-0.028) (0.029-0.033) (0.035-0.040) (0.040-0.046) (0.047-0.054) (0.052-0.060) (0.058-0.066) (0.063-0.073)I(0.071-0.082) (0.077-0.090)
10-day 0.021 0.025 0.030 0.034 0.039 0.043 0.047 0.052 0.057 0.062
(0.020-0.022) (0.023-0.026) (0.028-0.032) (0.032-0.036) (0.036-0.041) (0.040-0.046) (0.044-0.050) (0.048-0.055) (0.053-0.061) (0.057-0.066)
20-day 0.014 0.016 0.019 0.022 0.025 0.027 0.030 0.032 0.036 0.039
(0.013-0.015) (0.016-0.017) (0.018-0.020) (0.021-0.023) (0.023-0.026) (0.026-0.029) (0.028-0.032) (0.030-0.034) (0.033-0.038) (0.036-0.041)
30-day 0.011 0.013 0.016 0.017 0.020 0.021 0.023 0.025 0.027 0.029
(0.011-0.012) (0.013-0.014) (0.015-0.016) (0.016-0.018) (0.018-0.021) (0.020-0.022) (0.022-0.024) (0.023-0.026) (0.025-0.028) (0.027-0.030)
45-day 0.010 0.011 0.013 0.014 0.016 0.017 0.018 0.019 0.021 0.022
(0.009-0.010) (0.011-0.012) (0.012-0.013) (0.013-0.015) (0.015-0.016) (0.016-0.018) (0.017-0.019) (0.018-0.020) (0.020-0.022) (0.021-0.023)
60-day 0.009 0.010 0.011 0.012 0.014 0.015 0.015 0.016 0.018 0.019
(0.008-0.009) (0.010-0.010) (0.011-0.012) (0.012-0.013) (0.013-0.014) (0.014-0.015) (0.015-0.016) (0.016-0.017) (0.017-0.018) (0.018-0.019)
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
PF graphical
https://hdsc.nws.noaa.gov/hdsc/pfds/pfds_printpage.html?lat=35.3214&Ion=-80.6438&data=intensity&units=english&series=pds 1/4

ENGINEERINGOAK
WET POND DESIGN AS-BUILT
BASED ON NCDEQ BMP DESIGN MANUAL
October 23, 2020

WET POND DESIGN AS-BUILT
Mountain &Piedmont Regions
Table 10-1
SURFACE AREA REQ'D SA/DA RATIO CHART(for 85%TSS removal)
Drainage Area = 2.70 ac 85 % %imp cover avg. permanent pool depth (ft)
3 4 5 6 7 8 9
% Impervious = 75.00 % 10 0.51 0.43 0.37 0.30 0.27 0.25
20 0.84 0.69 0.61 0.51 0.44 0.40
Try Perm. Pool Depth = 3.0 30 1.17 0.94 0.84 0.72 0.61 0.56
40 1.51 1.24 1.09 0.91 0.78 0.71
SA/DA= 2.92 50 1.79 1.51 1.31 1.13 0.95 0.87
60 2.09 1.77 1.49 1.31 1.12 1.03
Surface Area Req'd = 0.080 ac 3,485 sf 70 2.51 2.09 1.80 1.56 1.34 1.17
Area Provided = 0.098 ac 4,254 sf 80 2.92 2.41 2.07 1.82 1.62 1.40
at Elev= 589.50 90 3.25 2.64 2.66 2.04 1.84 1.59
VOL prov'd perm pool= 0.25 ac-ft (includes Forebay)
•
Avg Depth = 2.56 ft
Coastal Region
Table 10-3
SA/DA RATIO CHART(for 90%TSS removal)
TEMP. DRAWDOWN (DETERMINE 1" STORM VOLUME) %imp cover avg. permanent pool depth (ft)
3.0 4.0 5.0 6.0 7.0 8.0 9.0
10 0.78 0.61 0.44 0.00 0.00 0.00
USE SIMPLE METHOD Rv=0.05+0.009(I) 20 1.48 1.04 0.87 0.70 0.52 0.35
Rv= 0.725 IN/IN 30 2.18 1.65 1.39 1.13 0.87 0.70
P= 1.0 IN 40 2.96 2.26 1.83 1.39 0.96 0.78
VOLUME=DESIGN RAINFALL(Rv)DA 50 3.65 2.87 2.35 1.83 1.31 0.96
60 4.35 3.31 2.78 2.26 1.74 1.13
VOLUME= 0.163 AC-FT 7,106 CF 70 5.22 3.92 3.22 2.52 1.83 1.31
VOLprov= 0.164 AC-FT at elevation 590.91 80 5.92 4.52 3.65 2.78 1.91 1.57
90 6.53 5.05 4.18 2.96 2.44 1.74
FOREBAY SIZE
PRE-BAY VOL=15-20%OF MAIN POOL VOLUME
PRE-BAY VOLreqd= 0.050 ac-ft
PRE-BAY VOLprov.= 0.086 ac-ft
Actual % Used = 34.4 %
ORIFICE SIZING ORIFICE CALCULATIONS
orifice formula Q=cA(2gh)^.5 w/c=.6
2 DAY DRAWDOWN Q2= 0.04 cfs
DIA (in) 2.0
5 DAY DRAWDOWN= Q5= 0.02 cfs Inv= 589.50
(cfs)
FROM ORIFICE CALC'S: USE 2.0 IN DIA ORIFICE Elev Q
Top 1" Stor= 590.91
Approx Draw Down Time= 2.0 days Perm. Pool = 589.50
48 hours Head = 0.47
Avg Q = 0.04 cfs
Page 1 of 1

ENGINEERINGOAK
1 -INCH STORM EVENT
HYDROCAD OUTPUT(POND ONL YJ
September 21, 2020

Pet Suites Harrisburg SWM Type II 24-hr 1" Water Quality Rainfall=1.00"
Prepared by {enter your company name here} Printed 9/21/2020
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 2
Summary for Pond 8P: WET POND
Inflow Area = 2.700 ac, 74.81% Impervious, Inflow Depth = 0.40" for 1" Water Quality event
Inflow = 1.96 cfs @ 11.96 hrs, Volume= 0.091 af
Outflow = 0.07 cfs @ 14.25 hrs, Volume= 0.090 af, Atten= 97%, Lag= 137.4 min
Primary = 0.07 cfs @ 14.25 hrs, Volume= 0.090 af
Secondary= 0.00 cfs @ 5.00 hrs, Volume= 0.000 af
Routing by Dyn-Stor-Ind method, Time Span= 5.00-120.00 hrs, dt= 0.05 hrs
Peak Elev= 589.97' @ 14.25 hrs Surf.Area= 5,043 sf Storage= 2,204 cf
Plug-Flow detention time= 525.3 min calculated for 0.090 af(99% of inflow)
Center-of-Mass det. time= 520.8 min ( 1,364.9 - 844.2 )
Volume Invert Avail.Storage Storage Description
#1 589.50' 32,284 cf Custom Stage Data (Prismatic) Listed below (Recalc)
#2 590.39' 107 cf 18.0" Round RCP_Round 18"
L= 60.3' S= 0.0050 '/'
#3 590.69' 88 cf 15.0" Round RCP_Round 15"
L= 72.0' S= 0.0050 '/'
#4 591.15' 67 cf 15.0" Round RCP_Round 15"
L= 54.3' S= 0.0050 '/'
#5 590.79' 46 cf 12.0" Round 12" HDPE
L= 59.1' S= 0.0050 '/'
#6 591.09' 107 cf 12.0" Round 12" HDPE
L= 136.8' S= 0.0050 '/'
32,699 cf Total Available Storage
Elevation Surf.Area Inc.Store Cum.Store
(feet) (sq-ft) (cubic-feet) (cubic-feet)
589.50 4,265 0 0
590.00 5,087 2,338 2,338
591.00 6,223 5,655 7,993
592.00 7,436 6,830 14,823
593.00 8,715 8,076 22,898
594.00 10,057 9,386 32,284
Device Routing Invert Outlet Devices
#1 Device 2 589.50' 2.0"Vert. 2" Orifice C= 0.600
#2 Primary 588.75' 24.0" Round Culvert
L= 20.0' RCP, rounded edge headwall, Ke= 0.100
Inlet/ Outlet Invert= 588.75' / 588.65' S= 0.0050 '/' Cc= 0.900
n= 0.012, Flow Area= 3.14 sf
#3 Device 2 593.00' 48.0" x 48.0" Horiz. TOP of OS X 4.00 C= 0.600
Limited to weir flow at low heads
#4 Secondary 593.50' 10.0' long x 6.0' breadth Emergency Spillway
Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80
2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50
Coef. (English) 2.37 2.51 2.70 2.68 2.68 2.67 2.65 2.65 2.65
2.65 2.66 2.66 2.67 2.69 2.72 2.76 2.83
#5 Device 2 591.00' 15.0"W x 6.0" H Vert. Orifice/Grate X 4.00 C= 0.600

Pet Suites Harrisburg SWM Type II 24-hr 1" Water Quality Rainfall=1.00"
Prepared by {enter your company name here} Printed 9/21/2020
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 3
Primary OutFlow Max=0.07 cfs @ 14.25 hrs HW=589.97' (Free Discharge)
Li=Culvert (Passes 0.07 cfs of 6.24 cfs potential flow)
—1=2" Orifice (Orifice Controls 0.07 cfs @ 3.01 fps)
—3=TOP of OS ( Controls 0.00 cfs)
—5=Orifice/Grate ( Controls 0.00 cfs)
Secondary OutFlow Max=0.00 cfs @ 5.00 hrs HW=589.50' (Free Discharge)
4-4=Emergency Spillway ( Controls 0.00 cfs)
Pond 8P: WET POND
Hydrograph
❑Inflow
11.96 cfs I ❑Outflow
Inflow Area=2.700 ac osrimarY
e ondary
2 Peak Elev=589.97'
Storage=2,204 cf
/
V
3
0 1
U.
/
0.07.cfs
i 0.07 cfs
I 0.00 cfs
5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120
Time (hours)

Pet Suites Harrisburg SWM Type II 24-hr 1" Water Quality Rainfall=1.00"
Prepared by {enter your company name here} Printed 9/21/2020
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 4
Hydrograph for Pond 8P: WET POND
Time Inflow Storage Elevation Outflow Primary Secondary
(hours) (cfs) (cubic-feet) (feet) (cfs) (cfs) (cfs)
5.00 0.00 0 589.50 0.00 0.00 0.00
7.50 0.00 0 589.50 0.00 0.00 0.00
10.00 0.00 0 589.50 0.00 0.00 0.00
12.50 0.18 1,980 589.93 0.06 0.06 0.00
15.00 0.06 2,192 589.97 0.07 0.07 0.00
17.50 0.04 2,017 589.94 0.06 0.06 0.00
20.00 0.03 1,761 589.88 0.06 0.06 0.00
22.50 0.02 1,489 589.83 0.05 0.05 0.00
25.00 0.00 1,179 589.76 0.04 0.04 0.00
27.50 0.00 826 589.69 0.03 0.03 0.00
30.00 0.00 571 589.63 0.02 0.02 0.00
32.50 0.00 412 589.59 0.01 0.01 0.00
35.00 0.00 316 589.57 0.01 0.01 0.00
37.50 0.00 254 589.56 0.01 0.01 0.00
40.00 0.00 211 589.55 0.00 0.00 0.00
42.50 0.00 179 589.54 0.00 0.00 0.00
45.00 0.00 156 589.54 0.00 0.00 0.00
47.50 0.00 138 589.53 0.00 0.00 0.00
50.00 0.00 123 589.53 0.00 0.00 0.00
52.50 0.00 111 589.53 0.00 0.00 0.00
55.00 0.00 102 589.52 0.00 0.00 0.00
57.50 0.00 93 589.52 0.00 0.00 0.00
60.00 0.00 86 589.52 0.00 0.00 0.00
62.50 0.00 80 589.52 0.00 0.00 0.00
65.00 0.00 75 589.52 0.00 0.00 0.00
67.50 0.00 70 589.52 0.00 0.00 0.00
70.00 0.00 66 589.52 0.00 0.00 0.00
72.50 0.00 63 589.51 0.00 0.00 0.00
75.00 0.00 59 589.51 0.00 0.00 0.00
77.50 0.00 56 589.51 0.00 0.00 0.00
80.00 0.00 54 589.51 0.00 0.00 0.00
82.50 0.00 51 589.51 0.00 0.00 0.00
85.00 0.00 49 589.51 0.00 0.00 0.00
87.50 0.00 47 589.51 0.00 0.00 0.00
90.00 0.00 45 589.51 0.00 0.00 0.00
92.50 0.00 43 589.51 0.00 0.00 0.00
95.00 0.00 42 589.51 0.00 0.00 0.00
97.50 0.00 40 589.51 0.00 0.00 0.00
100.00 0.00 39 589.51 0.00 0.00 0.00
102.50 0.00 37 589.51 0.00 0.00 0.00
105.00 0.00 36 589.51 0.00 0.00 0.00
107.50 0.00 35 589.51 0.00 0.00 0.00
110.00 0.00 34 589.51 0.00 0.00 0.00
112.50 0.00 33 589.51 0.00 0.00 0.00
115.00 0.00 32 589.51 0.00 0.00 0.00
117.50 0.00 31 589.51 0.00 0.00 0.00
120.00 0.00 30 589.51 0.00 0.00 0.00

Pet Suites Harrisburg SWM Type II 24-hr 1" Water Quality Rainfall=1.00"
Prepared by {enter your company name here} Printed 9/21/2020
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 5
Stage-Discharge for Pond 8P: WET POND
Elevation Discharge Primary Secondary Elevation Discharge Primary Secondary
(feet) (cfs) (cfs) (cfs) (feet) (cfs) (cfs) (cfs)
589.50 0.00 0.00 0.00 592.35 12.77 12.77 0.00
589.55 0.00 0.00 0.00 592.40 13.06 13.06 0.00
589.60 0.01 0.01 0.00 592.45 13.34 13.34 0.00
589.65 0.03 0.03 0.00 592.50 13.62 13.62 0.00
589.70 0.04 0.04 0.00 592.55 13.88 13.88 0.00
589.75 0.04 0.04 0.00 592.60 14.15 14.15 0.00
589.80 0.05 0.05 0.00 592.65 14.41 14.41 0.00
589.85 0.05 0.05 0.00 592.70 14.66 14.66 0.00
589.90 0.06 0.06 0.00 592.75 14.91 14.91 0.00
589.95 0.06 0.06 0.00 592.80 15.16 15.16 0.00
590.00 0.07 0.07 0.00 592.85 15.40 15.40 0.00
590.05 0.07 0.07 0.00 592.90 15.64 15.64 0.00
590.10 0.08 0.08 0.00 592.95 15.87 15.87 0.00
590.15 0.08 0.08 0.00 593.00 16.10 16.10 0.00
590.20 0.08 0.08 0.00 593.05 18.67 18.67 0.00
590.25 0.09 0.09 0.00 593.10 23.18 23.18 0.00
590.30 0.09 0.09 0.00 593.15 28.94 28.94 0.00
590.35 0.09 0.09 0.00 593.20 35.14 35.14 0.00
590.40 0.09 0.09 0.00 593.25 35.49 35.49 0.00
590.45 0.10 0.10 0.00 593.30 35.82 35.82 0.00
590.50 0.10 0.10 0.00 593.35 36.16 36.16 0.00
590.55 0.10 0.10 0.00 593.40 36.49 36.49 0.00
590.60 0.11 0.11 0.00 593.45 36.82 36.82 0.00
590.65 0.11 0.11 0.00 593.50 37.15 37.15 0.00
590.70 0.11 0.11 0.00 593.55 37.74 37.48 0.26
590.75 0.11 0.11 0.00 593.60 38.55 37.80 0.75
590.80 0.12 0.12 0.00 593.65 39.49 38.12 1.38
590.85 0.12 0.12 0.00 593.70 40.55 38.43 2.12
590.90 0.12 0.12 0.00 593.75 41.75 38.75 3.01
590.95 0.12 0.12 0.00 593.80 43.07 39.06 4.01
591.00 0.13 0.13 0.00 593.85 44.49 39.37 5.12
591.05 0.31 0.31 0.00 593.90 46.02 39.67 6.35
591.10 0.64 0.64 0.00 593.95 47.70 39.98 7.72
591.15 1.06 1.06 0.00 594.00 49.49 40.28 9.21
591.20 1.57 1.57 0.00
591.25 2.14 2.14 0.00
591.30 2.77 2.77 0.00
591.35 3.46 3.46 0.00
591.40 4.20 4.20 0.00
591.45 4.99 4.99 0.00
591.50 5.82 5.82 0.00
591.55 6.51 6.51 0.00
591.60 7.10 7.10 0.00
591.65 7.63 7.63 0.00
591.70 8.12 8.12 0.00
591.75 8.57 8.57 0.00
591.80 9.00 9.00 0.00
591.85 9.41 9.41 0.00
591.90 9.80 9.80 0.00
591.95 10.18 10.18 0.00
592.00 10.54 10.54 0.00
592.05 10.89 10.89 0.00
592.10 11.22 11.22 0.00
592.15 11.55 11.55 0.00
592.20 11.87 11.87 0.00
592.25 12.18 12.18 0.00
592.30 12.48 12.48 0.00

Pet Suites Harrisburg SWM Type II 24-hr 1" Water Quality Rainfall=1.00"
Prepared by {enter your company name here} Printed 9/21/2020
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 6
Stage-Area-Storage for Pond 8P: WET POND
Elevation Storage Elevation Storage
(feet) (cubic-feet) (feet) (cubic-feet)
589.50 0 592.35 17,901
589.55 215 592.40 18,302
589.60 435 592.45 18,705
589.65 658 592.50 19,110
589.70 886 592.55 19,518
589.75 1,118 592.60 19,928
589.80 1,353 592.65 20,341
589.85 1,593 592.70 20,756
589.90 1,838 592.75 21,175
589.95 2,086 592.80 21,596
590.00 2,338 592.85 22,021
590.05 2,594 592.90 22,448
590.10 2,852 592.95 22,879
590.15 3,114 593.00 23,313
590.20 3,378 593.05 23,751
590.25 3,645 593.10 24,192
590.30 3,915 593.15 24,636
590.35 4,188 593.20 25,083
590.40 4,464 593.25 25,534
590.45 4,742 593.30 25,988
590.50 5,024 593.35 26,446
590.55 5,309 593.40 26,907
590.60 5,597 593.45 27,371
590.65 5,889 593.50 27,839
590.70 6,184 593.55 28,310
590.75 6,482 593.60 28,784
590.80 6,784 593.65 29,262
590.85 7,090 593.70 29,743
590.90 7,399 593.75 30,227
590.95 7,712 593.80 30,715
591.00 8,029 593.85 31,206
591.05 8,350 593.90 31,700
591.10 8,675 593.95 32,198
591.15 9,004 594.00 32,699
591.20 9,337
591.25 9,673
591.30 10,014
591.35 10,359
591.40 10,708
591.45 11,061
591.50 11,418
591.55 11,778
591.60 12,142
591.65 12,509
591.70 12,880
591.75 13,254
591.80 13,630
591.85 14,009
591.90 14,390
591.95 14,773
592.00 15,158
592.05 15,544
592.10 15,931
592.15 16,321
592.20 16,713
592.25 17,107
592.30 17,503

ENGINEERINGOAK
1 -INCH STORM EVENT AS-BUILT
HYDROCAD OUTPUT(POND ONL Y)
October 23, 2020

Pet Suites Harrisburg SWM Type II 24-hr 1" Water Quality Rainfall=1.00"
Prepared by OAK Engineering Printed 9/30/2022
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 1
Summary for Pond 12P: WET POND (as-built)
Inflow Area = 2.700 ac, 74.81% Impervious, Inflow Depth = 0.40" for 1" Water Quality event
Inflow = 1.96 cfs @ 11.96 hrs, Volume= 0.091 af
Outflow = 0.04 cfs @ 11.80 hrs, Volume= 0.091 af, Atten= 98%, Lag= 0.0 min
Primary = 0.04 cfs @ 11.80 hrs, Volume= 0.091 af
Secondary= 0.00 cfs @ 5.00 hrs, Volume= 0.000 af
Routing by Dyn-Stor-Ind method, Time Span= 5.00-120.00 hrs, dt= 0.05 hrs
Peak Elev= 590.01' @ 16.91 hrs Surf.Area= 4,896 sf Storage= 2,353 cf
Plug-Flow detention time= (not calculated: outflow precedes inflow)
Center-of-Mass det. time= 628.6 min ( 1,472.8 - 844.2 )
Volume Invert Avail.Storage Storage Description
#1 589.50' 29,561 cf Custom Stage Data (Prismatic) Listed below (Recalc)
#2 590.38' 104 cf 18.0" Round RCP_Round 18"
L= 59.1' S= 0.0066 '/'
#3 590.77' 89 cf 15.0" Round RCP_Round 15"
L= 72.7' S= 0.0050 '/'
#4 591.17' 66 cf 15.0" Round RCP_Round 15"
L= 53.9' S= 0.0059 '/'
#5 590.82' 45 cf 12.0" Round 15" CLASS IV
L= 56.8' S= 0.0069 '/'
#6 591.10' 108 cf 12.0" Round 12" HDPE
L= 137.2' S= 0.0043 '/'
29,973 cf Total Available Storage
Elevation Surf.Area Inc.Store Cum.Store
(feet) (sq-ft) (cubic-feet) (cubic-feet)
589.50 4,254 0 0
590.00 4,882 2,284 2,284
591.00 5,875 5,379 7,663
592.00 6,930 6,403 14,065
593.00 8,082 7,506 21,571
593.92 9,287 7,990 29,561
Device Routing Invert Outlet Devices
#1 Device 3 588.10' 0.040 cfs 4" perforated pipe
#2 Device 3 590.91' 2.0"Vert. 2" Orifice C= 0.600
#3 Primary 587.70' 24.0" Round Culvert
L= 19.9' RCP, rounded edge headwall, Ke= 0.100
Inlet/ Outlet Invert= 587.70' / 587.17' S= 0.0266 '/' Cc= 0.900
n= 0.012, Flow Area= 3.14 sf
#4 Device 3 592.92' 48.0" x 48.0" Horiz. TOP of OS X 4.00 C= 0.600
Limited to weir flow at low heads
#5 Secondary 592.66' 12.0' long x 20.0' breadth Emergency Spillway
Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60
Coef. (English) 2.68 2.70 2.70 2.64 2.63 2.64 2.64 2.63

Pet Suites Harrisburg SWM Type II 24-hr 1" Water Quality Rainfall=1.00"
Prepared by OAK Engineering Printed 9/30/2022
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 2
Primary OutFlow Max=0.04 cfs @ 11.80 hrs HW=589.55' (Free Discharge)
L1=Culvert (Passes 0.04 cfs of 16.54 cfs potential flow)
—1=4" perforated pipe (Constant Controls 0.04 cfs)
—2=2" Orifice ( Controls 0.00 cfs)
—4=TOP of OS ( Controls 0.00 cfs)
Secondary OutFlow Max=0.00 cfs @ 5.00 hrs HW=589.50' (Free Discharge)
4-5=Emergency Spillway ( Controls 0.00 cfs)
Pond 12P: WET POND (as-built)
Hydrograph
❑Inflow
11.96 cfs I ❑Outflow
Inflow Area=2.700 ac mary
0Se ondary
•
2 Peak EIev=590.01'
Storage=2,353 cf
/
V
3
0 1
U.
/
/
0.04 cfs
4cfs z /
10.00cfs
5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120
Time (hours)

Pet Suites Harrisburg SWM Type II 24-hr 1" Water Quality Rainfall=1.00"
Prepared by OAK Engineering Printed 9/30/2022
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 3
Pond 12P: WET POND (as-built)
Stage-Discharge
/ ❑EaI
ry
- /- of OS
593 -��
.a o Emergency Spillway
1.7
w 592
2"Orifice
591
590 � •
0 10 20 30 40 50 60 70 80 90
Discharge (cfs)
Pond 12P: WET POND (as-built)
Stage-Area-Storage
❑Storage II
593
w
� 592=' a
�o
12"HDPE and 15'
591=' / i 15 CLASS IVY
_ 3
RCP Round 18"
590
Custom Stage Data /
0 5,000 10,000 15,000 20,000 25,000
Storage(cubic-feet)

Pet Suites Harrisburg SWM Type II 24-hr 1" Water Quality Rainfall=1.00"
Prepared by OAK Engineering Printed 9/30/2022
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 4
Hydrograph for Pond 12P: WET POND (as-built)
Time Inflow Storage Elevation Outflow Primary Secondary
(hours) (cfs) (cubic-feet) (feet) (cfs) (cfs) (cfs)
5.00 0.00 0 589.50 0.00 0.00 0.00
7.50 0.00 0 589.50 0.00 0.00 0.00
10.00 0.00 0 589.50 0.00 0.00 0.00
12.50 0.18 1,872 589.91 0.04 0.04 0.00
15.00 0.06 2,308 590.00 0.04 0.04 0.00
17.50 0.04 2,351 590.01 0.04 0.04 0.00
20.00 0.03 2,276 590.00 0.04 0.04 0.00
22.50 0.02 2,137 589.97 0.04 0.04 0.00
25.00 0.00 1,906 589.92 0.04 0.04 0.00
27.50 0.00 1,546 589.85 0.04 0.04 0.00
30.00 0.00 1,186 589.77 0.04 0.04 0.00
32.50 0.00 826 589.69 0.04 0.04 0.00
35.00 0.00 466 589.61 0.04 0.04 0.00
37.50 0.00 106 589.52 0.04 0.04 0.00
40.00 0.00 0 589.50 0.00 0.00 0.00
42.50 0.00 0 589.50 0.00 0.00 0.00
45.00 0.00 0 589.50 0.00 0.00 0.00
47.50 0.00 0 589.50 0.00 0.00 0.00
50.00 0.00 0 589.50 0.00 0.00 0.00
52.50 0.00 0 589.50 0.00 0.00 0.00
55.00 0.00 0 589.50 0.00 0.00 0.00
57.50 0.00 0 589.50 0.00 0.00 0.00
60.00 0.00 0 589.50 0.00 0.00 0.00
62.50 0.00 0 589.50 0.00 0.00 0.00
65.00 0.00 0 589.50 0.00 0.00 0.00
67.50 0.00 0 589.50 0.00 0.00 0.00
70.00 0.00 0 589.50 0.00 0.00 0.00
72.50 0.00 0 589.50 0.00 0.00 0.00
75.00 0.00 0 589.50 0.00 0.00 0.00
77.50 0.00 0 589.50 0.00 0.00 0.00
80.00 0.00 0 589.50 0.00 0.00 0.00
82.50 0.00 0 589.50 0.00 0.00 0.00
85.00 0.00 0 589.50 0.00 0.00 0.00
87.50 0.00 0 589.50 0.00 0.00 0.00
90.00 0.00 0 589.50 0.00 0.00 0.00
92.50 0.00 0 589.50 0.00 0.00 0.00
95.00 0.00 0 589.50 0.00 0.00 0.00
97.50 0.00 0 589.50 0.00 0.00 0.00
100.00 0.00 0 589.50 0.00 0.00 0.00
102.50 0.00 0 589.50 0.00 0.00 0.00
105.00 0.00 0 589.50 0.00 0.00 0.00
107.50 0.00 0 589.50 0.00 0.00 0.00
110.00 0.00 0 589.50 0.00 0.00 0.00
112.50 0.00 0 589.50 0.00 0.00 0.00
115.00 0.00 0 589.50 0.00 0.00 0.00
117.50 0.00 0 589.50 0.00 0.00 0.00
120.00 0.00 0 589.50 0.00 0.00 0.00

Pet Suites Harrisburg SWM Type II 24-hr 1" Water Quality Rainfall=1.00"
Prepared by OAK Engineering Printed 9/30/2022
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 5
Stage-Discharge for Pond 12P: WET POND (as-built)
Elevation Discharge Primary Secondary Elevation Discharge Primary Secondary
(feet) (cfs) (cfs) (cfs) (feet) (cfs) (cfs) (cfs)
589.50 0.00 0.00 0.00 592.35 0.16 0.16 0.00
589.55 0.04 0.04 0.00 592.40 0.16 0.16 0.00
589.60 0.04 0.04 0.00 592.45 0.17 0.17 0.00
589.65 0.04 0.04 0.00 592.50 0.17 0.17 0.00
589.70 0.04 0.04 0.00 592.55 0.17 0.17 0.00
589.75 0.04 0.04 0.00 592.60 0.17 0.17 0.00
589.80 0.04 0.04 0.00 592.65 0.18 0.18 0.00
589.85 0.04 0.04 0.00 592.70 0.43 0.18 0.26
589.90 0.04 0.04 0.00 592.75 1.05 0.18 0.87
589.95 0.04 0.04 0.00 592.80 1.87 0.18 1.68
590.00 0.04 0.04 0.00 592.85 2.85 0.18 2.66
590.05 0.04 0.04 0.00 592.90 3.97 0.19 3.79
590.10 0.04 0.04 0.00 592.95 6.31 1.27 5.04
590.15 0.04 0.04 0.00 593.00 11.33 4.92 6.41
590.20 0.04 0.04 0.00 593.05 17.89 10.00 7.89
590.25 0.04 0.04 0.00 593.10 25.63 16.17 9.46
590.30 0.04 0.04 0.00 593.15 34.39 23.28 11.11
590.35 0.04 0.04 0.00 593.20 44.06 31.20 12.86
590.40 0.04 0.04 0.00 593.25 54.55 39.87 14.68
590.45 0.04 0.04 0.00 593.30 60.76 44.24 16.52
590.50 0.04 0.04 0.00 593.35 62.87 44.48 18.38
590.55 0.04 0.04 0.00 593.40 65.02 44.72 20.30
590.60 0.04 0.04 0.00 593.45 67.23 44.96 22.27
590.65 0.04 0.04 0.00 593.50 69.56 45.19 24.37
590.70 0.04 0.04 0.00 593.55 71.98 45.43 26.55
590.75 0.04 0.04 0.00 593.60 74.46 45.66 28.80
590.80 0.04 0.04 0.00 593.65 76.99 45.89 31.09
590.85 0.04 0.04 0.00 593.70 79.62 46.12 33.50
590.90 0.04 0.04 0.00 593.75 82.33 46.35 35.98
590.95 0.04 0.04 0.00 593.80 85.10 46.58 38.52
591.00 0.05 0.05 0.00 593.85 87.93 46.81 41.12
591.05 0.06 0.06 0.00 593.90 90.78 47.04 43.74
591.10 0.07 0.07 0.00
591.15 0.08 0.08 0.00
591.20 0.09 0.09 0.00
591.25 0.09 0.09 0.00
591.30 0.10 0.10 0.00
591.35 0.10 0.10 0.00
591.40 0.11 0.11 0.00
591.45 0.11 0.11 0.00
591.50 0.11 0.11 0.00
591.55 0.12 0.12 0.00
591.60 0.12 0.12 0.00
591.65 0.13 0.13 0.00
591.70 0.13 0.13 0.00
591.75 0.13 0.13 0.00
591.80 0.13 0.13 0.00
591.85 0.14 0.14 0.00
591.90 0.14 0.14 0.00
591.95 0.14 0.14 0.00
592.00 0.15 0.15 0.00
592.05 0.15 0.15 0.00
592.10 0.15 0.15 0.00
592.15 0.15 0.15 0.00
592.20 0.16 0.16 0.00
592.25 0.16 0.16 0.00
592.30 0.16 0.16 0.00

Pet Suites Harrisburg SWM Type II 24-hr 1" Water Quality Rainfall=1.00"
Prepared by OAK Engineering Printed 9/30/2022
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 6
Stage-Area-Storage for Pond 12P: WET POND (as-built)
Elevation Storage Elevation Storage
(feet) (cubic-feet) (feet) (cubic-feet)
589.50 0 592.35 16,957
589.55 214 592.40 17,330
589.60 432 592.45 17,705
589.65 652 592.50 18,082
589.70 876 592.55 18,461
589.75 1,103 592.60 18,842
589.80 1,333 592.65 19,225
589.85 1,566 592.70 19,610
589.90 1,802 592.75 19,999
589.95 2,041 592.80 20,390
590.00 2,284 592.85 20,784
590.05 2,529 592.90 21,181
590.10 2,777 592.95 21,581
590.15 3,027 593.00 21,983
590.20 3,280 593.05 22,389
590.25 3,536 593.10 22,798
590.30 3,793 593.15 23,210
590.35 4,054 593.20 23,626
590.40 4,316 593.25 24,045
590.45 4,582 593.30 24,467
590.50 4,850 593.35 24,892
590.55 5,120 593.40 25,321
590.60 5,394 593.45 25,753
590.65 5,671 593.50 26,188
590.70 5,950 593.55 26,626
590.75 6,233 593.60 27,068
590.80 6,518 593.65 27,513
590.85 6,806 593.70 27,961
590.90 7,098 593.75 28,413
590.95 7,393 593.80 28,868
591.00 7,691 593.85 29,326
591.05 7,993 593.90 29,787
591.10 8,298
591.15 8,607
591.20 8,920
591.25 9,236
591.30 9,557
591.35 9,881
591.40 10,209
591.45 10,540
591.50 10,876
591.55 11,215
591.60 11,557
591.65 11,903
591.70 12,251
591.75 12,603
591.80 12,957
591.85 13,313
591.90 13,671
591.95 14,030
592.00 14,391
592.05 14,754
592.10 15,118
592.15 15,483
592.20 15,849
592.25 16,216
592.30 16,586

ENGINEERINGOAK
1YR-24HR STORM EVENT
HYDROCAD OUTPUT
September 21, 2020

Pet Suites Harrisburg SWM Type II 24-hr lyr-24hr Rainfall=2.90"
Prepared by {enter your company name here} Printed 9/21/2020
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 6
Time span=5.00-120.00 hrs, dt=0.05 hrs, 2301 points
Runoff by SCS TR-20 method, UH=SCS, Weighted-CN
Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method
Subcatchment 1S: PRE Runoff Area=2.700 ac 0.00% Impervious Runoff Depth=0.95"
Flow Length=536' Tc=10.0 min CN=76 Runoff=3.78 cfs 0.213 af
Subcatchment 2S: POST TO WET POND Runoff Area=0.940 ac 74.47% Impervious Runoff Depth>2.07"
Tc=5.0 min CN=92 Runoff=3.34 cfs 0.162 af
Subcatchment 9S: FUTURE OFF-SITE Runoff Area=1.760 ac 75.00% Impervious Runoff Depth>2.07"
Tc=5.0 min CN=92 Runoff=6.26 cfs 0.303 af
Pond 8P: WET POND Peak Elev=591.30' Storage=9,997 cf Inflow=9.61 cfs 0.465 af
Primary=2.74 cfs 0.464 af Secondary=0.00 cfs 0.000 af Outflow=2.74 cfs 0.464 af
Total Runoff Area = 5.400 ac Runoff Volume = 0.678 af Average Runoff Depth = 1.51"
62.59% Pervious = 3.380 ac 37.41% Impervious = 2.020 ac

Pet Suites Harrisburg SWM Type II 24-hr lyr-24hr Rainfall=2.90"
Prepared by {enter your company name here} Printed 9/21/2020
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 7
Summary for Subcatchment 1S: PRE
Runoff = 3.78 cfs @ 12.03 hrs, Volume= 0.213 af, Depth= 0.95"
Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-120.00 hrs, dt= 0.05 hrs
Type II 24-hr 1 yr-24hr Rainfall=2.90"
Area (ac) CN Description
2.700 76 Woods/grass comb., Fair, HSG C
2.700 100.00% Pervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
7.1 50 0.0259 0.12 Sheet Flow,
Grass: Dense n= 0.240 P2= 3.50"
2.9 486 0.0300 2.79 Shallow Concentrated Flow,
Unpaved Kv= 16.1 fps
10.0 536 Total
Subcatchment 1 S: PRE
Hydrograph
■Runoff
4 3.78 cfs I
Type 1124-h r
1yr-24hr Rainfall=2.90"
3 Runoff Area=2.700 ac
Runoff Volume=0.213 af
72
R.uno..ff.Depth=0 95"
LL 2= Flow Length=536'
Tc=10.0 min
CN=76
1 /
5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120
Time (hours)

Pet Suites Harrisburg SWM Type II 24-hr lyr-24hr Rainfall=2.90"
Prepared by {enter your company name here} Printed 9/21/2020
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 8
Summary for Subcatchment 2S: POST TO WET POND
[49] Hint: Tc<2dt may require smaller dt
Runoff = 3.34 cfs @ 11.95 hrs, Volume= 0.162 af, Depth> 2.07"
Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-120.00 hrs, dt= 0.05 hrs
Type II 24-hr 1 yr-24hr Rainfall=2.90"
Area (ac) CN Description
* 0.700 98 Paved parking / Building, HSG C
0.240 74 >75% Grass cover, Good, HSG C
0.940 92 Weighted Average
0.240 25.53% Pervious Area
0.700 74.47% Impervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
5.0 Direct Entry,
Subcatchment 2S: POST TO WET POND
Hydrograph
❑Runoff
3.34 cfs 1
_ 1 Type II 24-hr
3_,. lyr-24hr Rainfall=2.90"
Runoff Area=0.940 ac
Runoff Volume=�0.162 of
2— o- a Runoff Depth>2.07"
-
LL /
Tc=5.0 min
n
-
CN=92
1_..
5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120
Time (hours)

Pet Suites Harrisburg SWM Type II 24-hr lyr-24hr Rainfall=2.90"
Prepared by {enter your company name here} Printed 9/21/2020
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 9
Summary for Subcatchment 9S: FUTURE OFF-SITE
[49] Hint: Tc<2dt may require smaller dt
Runoff = 6.26 cfs @ 11.95 hrs, Volume= 0.303 af, Depth> 2.07"
Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-120.00 hrs, dt= 0.05 hrs
Type II 24-hr 1 yr-24hr Rainfall=2.90"
Area (ac) CN Description
* 1.320 98 Paved parking / Building, HSG C
0.440 74 >75% Grass cover, Good, HSG C
1.760 92 Weighted Average
0.440 25.00% Pervious Area
1.320 75.00% Impervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
5.0 Direct Entry,
Subcatchment 9S: FUTURE OFF-SITE
Hydrograph
7-'
■Runoff
6.26 cfs I
6- Type 1i..24-hr
1yr-24hr Rainfall=2.90"
5= Runoff area=1.760 ac
Runoff Vo ume=0.303.af. .
4 _ • Runoff Depth>2.07"
3_ ' '
Tc=5.0 min
/
CN=92
2_
1
•
5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120
Time (hours)

Pet Suites Harrisburg SWM Type II 24-hr lyr-24hr Rainfall=2.90"
Prepared by {enter your company name here} Printed 9/21/2020
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 10
Summary for Pond 8P: WET POND
Inflow Area = 2.700 ac, 74.81% Impervious, Inflow Depth > 2.07" for lyr-24hr event
Inflow = 9.61 cfs @ 11.95 hrs, Volume= 0.465 af
Outflow = 2.74 cfs @ 12.10 hrs, Volume= 0.464 af, Atten= 71%, Lag= 8.6 min
Primary = 2.74 cfs @ 12.10 hrs, Volume= 0.464 af
Secondary = 0.00 cfs @ 5.00 hrs, Volume= 0.000 af
Routing by Dyn-Stor-Ind method, Time Span= 5.00-120.00 hrs, dt= 0.05 hrs
Peak Elev= 591.30' @ 12.10 hrs Surf.Area= 6,853 sf Storage= 9,997 cf
Plug-Flow detention time= 570.4 min calculated for 0.464 af(100% of inflow)
Center-of-Mass det. time= 569.1 min ( 1,366.5 - 797.3 )
Volume Invert Avail.Storage Storage Description
#1 589.50' 32,284 cf Custom Stage Data (Prismatic) Listed below (Recalc)
#2 590.39' 107 cf 18.0" Round RCP_Round 18"
L= 60.3' S= 0.0050 '/'
#3 590.69' 88 cf 15.0" Round RCP_Round 15"
L= 72.0' S= 0.0050 '/'
#4 591.15' 67 cf 15.0" Round RCP_Round 15"
L= 54.3' S= 0.0050 '/'
#5 590.79' 46 cf 12.0" Round 12" HDPE
L= 59.1' S= 0.0050 '/'
#6 591.09' 107 cf 12.0" Round 12" HDPE
L= 136.8' S= 0.0050 '/'
32,699 cf Total Available Storage
Elevation Surf.Area Inc.Store Cum.Store
(feet) (sq-ft) (cubic-feet) (cubic-feet)
589.50 4,265 0 0
590.00 5,087 2,338 2,338
591.00 6,223 5,655 7,993
592.00 7,436 6,830 14,823
593.00 8,715 8,076 22,898
594.00 10,057 9,386 32,284
Device Routing Invert Outlet Devices
#1 Device 2 589.50' 2.0"Vert. 2" Orifice C= 0.600
#2 Primary 588.75' 24.0" Round Culvert
L= 20.0' RCP, rounded edge headwall, Ke= 0.100
Inlet/ Outlet Invert= 588.75' / 588.65' S= 0.0050 '/' Cc= 0.900
n= 0.012, Flow Area= 3.14 sf
#3 Device 2 593.00' 48.0" x 48.0" Horiz. TOP of OS X 4.00 C= 0.600
Limited to weir flow at low heads
#4 Secondary 593.50' 10.0' long x 6.0' breadth Emergency Spillway
Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80
2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50
Coef. (English) 2.37 2.51 2.70 2.68 2.68 2.67 2.65 2.65 2.65
2.65 2.66 2.66 2.67 2.69 2.72 2.76 2.83
#5 Device 2 591.00' 15.0"W x 6.0" H Vert. Orifice/Grate X 4.00 C= 0.600

Pet Suites Harrisburg SWM Type II 24-hr lyr-24hr Rainfall=2.90"
Prepared by {enter your company name here} Printed 9/21/2020
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 11
Primary OutFlow Max=2.73 cfs @ 12.10 hrs HW=591.30' (Free Discharge)
Li=Culvert (Passes 2.73 cfs of 18.83 cfs potential flow)
—1=2" Orifice (Orifice Controls 0.14 cfs @ 6.30 fps)
—3=TOP of OS ( Controls 0.00 cfs)
—5=Orifice/Grate (Orifice Controls 2.59 cfs @ 1.75 fps)
Secondary OutFlow Max=0.00 cfs @ 5.00 hrs HW=589.50' (Free Discharge)
L4=Emergency Spillway ( Controls 0.00 cfs)
Pond 8P: WET POND
Hydrograph
❑Inflow
9 61 cfs I ❑Outflow
inflow Area=2.700ac ... ❑Se ondary
10 Peak Ele 591.30
Storage=9,997 cf
6 .•
c 5 •
fL •
4 r2.74 cfs
` 2.74 cfs
3
1 /4e. ��
7
0.00 cfs
0
5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120
Time (hours)

Pet Suites Harrisburg SWM Type II 24-hr lyr-24hr Rainfall=2.90"
Prepared by {enter your company name here} Printed 9/21/2020
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 12
Stage-Discharge for Pond 8P: WET POND
Elevation Discharge Primary Secondary Elevation Discharge Primary Secondary
(feet) (cfs) (cfs) (cfs) (feet) (cfs) (cfs) (cfs)
589.50 0.00 0.00 0.00 592.35 12.77 12.77 0.00
589.55 0.00 0.00 0.00 592.40 13.06 13.06 0.00
589.60 0.01 0.01 0.00 592.45 13.34 13.34 0.00
589.65 0.03 0.03 0.00 592.50 13.62 13.62 0.00
589.70 0.04 0.04 0.00 592.55 13.88 13.88 0.00
589.75 0.04 0.04 0.00 592.60 14.15 14.15 0.00
589.80 0.05 0.05 0.00 592.65 14.41 14.41 0.00
589.85 0.05 0.05 0.00 592.70 14.66 14.66 0.00
589.90 0.06 0.06 0.00 592.75 14.91 14.91 0.00
589.95 0.06 0.06 0.00 592.80 15.16 15.16 0.00
590.00 0.07 0.07 0.00 592.85 15.40 15.40 0.00
590.05 0.07 0.07 0.00 592.90 15.64 15.64 0.00
590.10 0.08 0.08 0.00 592.95 15.87 15.87 0.00
590.15 0.08 0.08 0.00 593.00 16.10 16.10 0.00
590.20 0.08 0.08 0.00 593.05 18.67 18.67 0.00
590.25 0.09 0.09 0.00 593.10 23.18 23.18 0.00
590.30 0.09 0.09 0.00 593.15 28.94 28.94 0.00
590.35 0.09 0.09 0.00 593.20 35.14 35.14 0.00
590.40 0.09 0.09 0.00 593.25 35.49 35.49 0.00
590.45 0.10 0.10 0.00 593.30 35.82 35.82 0.00
590.50 0.10 0.10 0.00 593.35 36.16 36.16 0.00
590.55 0.10 0.10 0.00 593.40 36.49 36.49 0.00
590.60 0.11 0.11 0.00 593.45 36.82 36.82 0.00
590.65 0.11 0.11 0.00 593.50 37.15 37.15 0.00
590.70 0.11 0.11 0.00 593.55 37.74 37.48 0.26
590.75 0.11 0.11 0.00 593.60 38.55 37.80 0.75
590.80 0.12 0.12 0.00 593.65 39.49 38.12 1.38
590.85 0.12 0.12 0.00 593.70 40.55 38.43 2.12
590.90 0.12 0.12 0.00 593.75 41.75 38.75 3.01
590.95 0.12 0.12 0.00 593.80 43.07 39.06 4.01
591.00 0.13 0.13 0.00 593.85 44.49 39.37 5.12
591.05 0.31 0.31 0.00 593.90 46.02 39.67 6.35
591.10 0.64 0.64 0.00 593.95 47.70 39.98 7.72
591.15 1.06 1.06 0.00 594.00 49.49 40.28 9.21
591.20 1.57 1.57 0.00
591.25 2.14 2.14 0.00
591.30 2.77 2.77 0.00
591.35 3.46 3.46 0.00
591.40 4.20 4.20 0.00
591.45 4.99 4.99 0.00
591.50 5.82 5.82 0.00
591.55 6.51 6.51 0.00
591.60 7.10 7.10 0.00
591.65 7.63 7.63 0.00
591.70 8.12 8.12 0.00
591.75 8.57 8.57 0.00
591.80 9.00 9.00 0.00
591.85 9.41 9.41 0.00
591.90 9.80 9.80 0.00
591.95 10.18 10.18 0.00
592.00 10.54 10.54 0.00
592.05 10.89 10.89 0.00
592.10 11.22 11.22 0.00
592.15 11.55 11.55 0.00
592.20 11.87 11.87 0.00
592.25 12.18 12.18 0.00
592.30 12.48 12.48 0.00

Pet Suites Harrisburg SWM Type II 24-hr lyr-24hr Rainfall=2.90"
Prepared by {enter your company name here} Printed 9/21/2020
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 13
Stage-Area-Storage for Pond 8P: WET POND
Elevation Storage Elevation Storage
(feet) (cubic-feet) (feet) (cubic-feet)
589.50 0 592.35 17,901
589.55 215 592.40 18,302
589.60 435 592.45 18,705
589.65 658 592.50 19,110
589.70 886 592.55 19,518
589.75 1,118 592.60 19,928
589.80 1,353 592.65 20,341
589.85 1,593 592.70 20,756
589.90 1,838 592.75 21,175
589.95 2,086 592.80 21,596
590.00 2,338 592.85 22,021
590.05 2,594 592.90 22,448
590.10 2,852 592.95 22,879
590.15 3,114 593.00 23,313
590.20 3,378 593.05 23,751
590.25 3,645 593.10 24,192
590.30 3,915 593.15 24,636
590.35 4,188 593.20 25,083
590.40 4,464 593.25 25,534
590.45 4,742 593.30 25,988
590.50 5,024 593.35 26,446
590.55 5,309 593.40 26,907
590.60 5,597 593.45 27,371
590.65 5,889 593.50 27,839
590.70 6,184 593.55 28,310
590.75 6,482 593.60 28,784
590.80 6,784 593.65 29,262
590.85 7,090 593.70 29,743
590.90 7,399 593.75 30,227
590.95 7,712 593.80 30,715
591.00 8,029 593.85 31,206
591.05 8,350 593.90 31,700
591.10 8,675 593.95 32,198
591.15 9,004 594.00 32,699
591.20 9,337
591.25 9,673
591.30 10,014
591.35 10,359
591.40 10,708
591.45 11,061
591.50 11,418
591.55 11,778
591.60 12,142
591.65 12,509
591.70 12,880
591.75 13,254
591.80 13,630
591.85 14,009
591.90 14,390
591.95 14,773
592.00 15,158
592.05 15,544
592.10 15,931
592.15 16,321
592.20 16,713
592.25 17,107
592.30 17,503

ENGINEERINGOAK
1YR-24HR STORM EVENT AS-BUILT
HYDROCAD OUTPUT
October 23, 2020

Pet Suites Harrisburg SWM Type II 24-hr lyr-24hr Rainfall=2.90"
Prepared by OAK Engineering Printed 9/30/2022
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 1
Summary for Subcatchment 1S: PRE
Runoff = 3.78 cfs @ 12.03 hrs, Volume= 0.213 af, Depth= 0.95"
Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-120.00 hrs, dt= 0.05 hrs
Type II 24-hr 1 yr-24hr Rainfall=2.90"
Area (ac) CN Description
2.700 76 Woods/grass comb., Fair, HSG C
2.700 100.00% Pervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
7.1 50 0.0259 0.12 Sheet Flow,
Grass: Dense n= 0.240 P2= 3.50"
2.9 486 0.0300 2.79 Shallow Concentrated Flow,
Unpaved Kv= 16.1 fps
10.0 536 Total
Subcatchment 1 S: PRE
Hydrograph
■Runoff
4 3.78 cfs I
Type 1124-h r
1yr-24hr Rainfall=2.90"
3 Runoff Area=2.700 ac
Runoff Volume=0.213 af
R.uno..ff.Depth=0 95"
LL 2= Flow Length=536'
Tc=10.0 min
CN=76
1 /
5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120
Time (hours)

Pet Suites Harrisburg SWM Type II 24-hr lyr-24hr Rainfall=2.90"
Prepared by OAK Engineering Printed 9/30/2022
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 2
Hydrograph for Subcatchment 1S: PRE
Time Precip. Excess Runoff
(hours) (inches) (inches) (cfs)
5.00 0.18 0.00 0.00
7.50 0.32 0.00 0.00
10.00 0.52 0.00 0.00
12.50 2.13 0.48 0.51
15.00 2.48 0.68 0.15
17.50 2.64 0.78 0.10
20.00 2.76 0.86 0.07
22.50 2.85 0.92 0.06
25.00 2.90 0.95 0.00
27.50 2.90 0.95 0.00
30.00 2.90 0.95 0.00
32.50 2.90 0.95 0.00
35.00 2.90 0.95 0.00
37.50 2.90 0.95 0.00
40.00 2.90 0.95 0.00
42.50 2.90 0.95 0.00
45.00 2.90 0.95 0.00
47.50 2.90 0.95 0.00
50.00 2.90 0.95 0.00
52.50 2.90 0.95 0.00
55.00 2.90 0.95 0.00
57.50 2.90 0.95 0.00
60.00 2.90 0.95 0.00
62.50 2.90 0.95 0.00
65.00 2.90 0.95 0.00
67.50 2.90 0.95 0.00
70.00 2.90 0.95 0.00
72.50 2.90 0.95 0.00
75.00 2.90 0.95 0.00
77.50 2.90 0.95 0.00
80.00 2.90 0.95 0.00
82.50 2.90 0.95 0.00
85.00 2.90 0.95 0.00
87.50 2.90 0.95 0.00
90.00 2.90 0.95 0.00
92.50 2.90 0.95 0.00
95.00 2.90 0.95 0.00
97.50 2.90 0.95 0.00
100.00 2.90 0.95 0.00
102.50 2.90 0.95 0.00
105.00 2.90 0.95 0.00
107.50 2.90 0.95 0.00
110.00 2.90 0.95 0.00
112.50 2.90 0.95 0.00
115.00 2.90 0.95 0.00
117.50 2.90 0.95 0.00
120.00 2.90 0.95 0.00

Pet Suites Harrisburg SWM Type II 24-hr lyr-24hr Rainfall=2.90"
Prepared by OAK Engineering Printed 9/30/2022
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 3
Summary for Subcatchment 10S: POST TO WET POND
[49] Hint: Tc<2dt may require smaller dt
Runoff = 3.34 cfs @ 11.95 hrs, Volume= 0.162 af, Depth> 2.07"
Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-120.00 hrs, dt= 0.05 hrs
Type II 24-hr 1 yr-24hr Rainfall=2.90"
Area (ac) CN Description
* 0.700 98 Paved parking / Building, HSG C
0.240 74 >75% Grass cover, Good, HSG C
0.940 92 Weighted Average
0.240 25.53% Pervious Area
0.700 74.47% Impervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
5.0 Direct Entry,
Subcatchment 10S: POST TO WET POND
Hydrograph
❑Runoff
3.34 cfs 1
_ 1 Type II 24-hr
3_,. lyr-24hr Rainfall=2.90"
Runoff Area=0.940 ac
Runoff Volume=�0.162 of
2— o- a Runoff Depth>2.07"
-
LL /
Tc=5.0 min
n
-
CN=92
1_..
5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120
Time (hours)

Pet Suites Harrisburg SWM Type II 24-hr lyr-24hr Rainfall=2.90"
Prepared by OAK Engineering Printed 9/30/2022
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 4
Hydrograph for Subcatchment 10S: POST TO WET POND
Time Precip. Excess Runoff
(hours) (inches) (inches) (cfs)
5.00 0.18 0.00 0.00
7.50 0.32 0.02 0.01
10.00 0.52 0.10 0.05
12.50 2.13 1.36 0.26
15.00 2.48 1.67 0.08
17.50 2.64 1.83 0.05
20.00 2.76 1.94 0.03
22.50 2.85 2.02 0.03
25.00 2.90 2.07 0.00
27.50 2.90 2.07 0.00
30.00 2.90 2.07 0.00
32.50 2.90 2.07 0.00
35.00 2.90 2.07 0.00
37.50 2.90 2.07 0.00
40.00 2.90 2.07 0.00
42.50 2.90 2.07 0.00
45.00 2.90 2.07 0.00
47.50 2.90 2.07 0.00
50.00 2.90 2.07 0.00
52.50 2.90 2.07 0.00
55.00 2.90 2.07 0.00
57.50 2.90 2.07 0.00
60.00 2.90 2.07 0.00
62.50 2.90 2.07 0.00
65.00 2.90 2.07 0.00
67.50 2.90 2.07 0.00
70.00 2.90 2.07 0.00
72.50 2.90 2.07 0.00
75.00 2.90 2.07 0.00
77.50 2.90 2.07 0.00
80.00 2.90 2.07 0.00
82.50 2.90 2.07 0.00
85.00 2.90 2.07 0.00
87.50 2.90 2.07 0.00
90.00 2.90 2.07 0.00
92.50 2.90 2.07 0.00
95.00 2.90 2.07 0.00
97.50 2.90 2.07 0.00
100.00 2.90 2.07 0.00
102.50 2.90 2.07 0.00
105.00 2.90 2.07 0.00
107.50 2.90 2.07 0.00
110.00 2.90 2.07 0.00
112.50 2.90 2.07 0.00
115.00 2.90 2.07 0.00
117.50 2.90 2.07 0.00
120.00 2.90 2.07 0.00

Pet Suites Harrisburg SWM Type II 24-hr lyr-24hr Rainfall=2.90"
Prepared by OAK Engineering Printed 9/30/2022
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 5
Summary for Subcatchment 11S: FUTURE OFF-SITE
[49] Hint: Tc<2dt may require smaller dt
Runoff = 6.26 cfs @ 11.95 hrs, Volume= 0.303 af, Depth> 2.07"
Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-120.00 hrs, dt= 0.05 hrs
Type II 24-hr 1 yr-24hr Rainfall=2.90"
Area (ac) CN Description
* 1.320 98 Paved parking / Building, HSG C
0.440 74 >75% Grass cover, Good, HSG C
1.760 92 Weighted Average
0.440 25.00% Pervious Area
1.320 75.00% Impervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
5.0 Direct Entry,
Subcatchment 11S: FUTURE OFF-SITE
Hydrograph
7-'
■Runoff
6.26 cfs I
6- Type 1i..24-hr
1yr-24hr Rainfall=2.90"
5= Runoff area=1.760 ac
Runoff Vo ume=0.303.af. .
4 •
_ Runoff Depth>2.07"
3_ ' '
Tc=5.0 min
/
CN=92
2_
1
•
5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120
Time (hours)

Pet Suites Harrisburg SWM Type II 24-hr lyr-24hr Rainfall=2.90"
Prepared by OAK Engineering Printed 9/30/2022
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 6
Hydrograph for Subcatchment 11 S: FUTURE OFF-SITE
Time Precip. Excess Runoff
(hours) (inches) (inches) (cfs)
5.00 0.18 0.00 0.00
7.50 0.32 0.02 0.03
10.00 0.52 0.10 0.10
12.50 2.13 1.36 0.49
15.00 2.48 1.67 0.15
17.50 2.64 1.83 0.09
20.00 2.76 1.94 0.06
22.50 2.85 2.02 0.06
25.00 2.90 2.07 0.00
27.50 2.90 2.07 0.00
30.00 2.90 2.07 0.00
32.50 2.90 2.07 0.00
35.00 2.90 2.07 0.00
37.50 2.90 2.07 0.00
40.00 2.90 2.07 0.00
42.50 2.90 2.07 0.00
45.00 2.90 2.07 0.00
47.50 2.90 2.07 0.00
50.00 2.90 2.07 0.00
52.50 2.90 2.07 0.00
55.00 2.90 2.07 0.00
57.50 2.90 2.07 0.00
60.00 2.90 2.07 0.00
62.50 2.90 2.07 0.00
65.00 2.90 2.07 0.00
67.50 2.90 2.07 0.00
70.00 2.90 2.07 0.00
72.50 2.90 2.07 0.00
75.00 2.90 2.07 0.00
77.50 2.90 2.07 0.00
80.00 2.90 2.07 0.00
82.50 2.90 2.07 0.00
85.00 2.90 2.07 0.00
87.50 2.90 2.07 0.00
90.00 2.90 2.07 0.00
92.50 2.90 2.07 0.00
95.00 2.90 2.07 0.00
97.50 2.90 2.07 0.00
100.00 2.90 2.07 0.00
102.50 2.90 2.07 0.00
105.00 2.90 2.07 0.00
107.50 2.90 2.07 0.00
110.00 2.90 2.07 0.00
112.50 2.90 2.07 0.00
115.00 2.90 2.07 0.00
117.50 2.90 2.07 0.00
120.00 2.90 2.07 0.00

Pet Suites Harrisburg SWM Type II 24-hr lyr-24hr Rainfall=2.90"
Prepared by OAK Engineering Printed 9/30/2022
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 7
Summary for Pond 12P: WET POND (as-built)
Inflow Area = 2.700 ac, 74.81% Impervious, Inflow Depth > 2.07" for 1yr-24hr event
Inflow = 9.61 cfs @ 11.95 hrs, Volume= 0.465 af
Outflow = 0.14 cfs @ 17.41 hrs, Volume= 0.465 af, Atten= 98%, Lag= 327.7 min
Primary = 0.14 cfs @ 17.41 hrs, Volume= 0.465 af
Secondary= 0.00 cfs @ 5.00 hrs, Volume= 0.000 af
Routing by Dyn-Stor-Ind method, Time Span= 5.00-120.00 hrs, dt= 0.05 hrs
Peak Elev= 591.99' @ 17.41 hrs Surf.Area= 7,227 sf Storage= 14,284 cf
Plug-Flow detention time= 1,566.3 min calculated for 0.465 af(100% of inflow)
Center-of-Mass det. time= 1,567.5 min ( 2,364.8 - 797.3 )
Volume Invert Avail.Storage Storage Description
#1 589.50' 29,561 cf Custom Stage Data (Prismatic) Listed below (Recalc)
#2 590.38' 104 cf 18.0" Round RCP_Round 18"
L= 59.1' S= 0.0066 '/'
#3 590.77' 89 cf 15.0" Round RCP_Round 15"
L= 72.7' S= 0.0050 '/'
#4 591.17' 66 cf 15.0" Round RCP_Round 15"
L= 53.9' S= 0.0059 '/'
#5 590.82' 45 cf 12.0" Round 15" CLASS IV
L= 56.8' S= 0.0069 '/'
#6 591.10' 108 cf 12.0" Round 12" HDPE
L= 137.2' S= 0.0043 '/'
29,973 cf Total Available Storage
Elevation Surf.Area Inc.Store Cum.Store
(feet) (sq-ft) (cubic-feet) (cubic-feet)
589.50 4,254 0 0
590.00 4,882 2,284 2,284
591.00 5,875 5,379 7,663
592.00 6,930 6,403 14,065
593.00 8,082 7,506 21,571
593.92 9,287 7,990 29,561
Device Routing Invert Outlet Devices
#1 Device 3 588.10' 0.040 cfs 4" perforated pipe
#2 Device 3 590.91' 2.0"Vert. 2" Orifice C= 0.600
#3 Primary 587.70' 24.0" Round Culvert
L= 19.9' RCP, rounded edge headwall, Ke= 0.100
Inlet/ Outlet Invert= 587.70' / 587.17' S= 0.0266 '/' Cc= 0.900
n= 0.012, Flow Area= 3.14 sf
#4 Device 3 592.92' 48.0" x 48.0" Horiz. TOP of OS X 4.00 C= 0.600
Limited to weir flow at low heads
#5 Secondary 592.66' 12.0' long x 20.0' breadth Emergency Spillway
Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60
Coef. (English) 2.68 2.70 2.70 2.64 2.63 2.64 2.64 2.63

Pet Suites Harrisburg SWM Type II 24-hr lyr-24hr Rainfall=2.90"
Prepared by OAK Engineering Printed 9/30/2022
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 8
Primary OutFlow Max=0.14 cfs @ 17.41 hrs HW=591.99' (Free Discharge)
LI=Culvert (Passes 0.14 cfs of 36.94 cfs potential flow)
—1=4" perforated pipe (Constant Controls 0.04 cfs)
—2=2" Orifice (Orifice Controls 0.10 cfs @ 4.80 fps)
—4=TOP of OS ( Controls 0.00 cfs)
Secondary OutFlow Max=0.00 cfs @ 5.00 hrs HW=589.50' (Free Discharge)
L5=Emergency Spillway ( Controls 0.00 cfs)
Pond 12P: WET POND (as-built)
Hydrograph
•
❑Inflow
9 61 cfs I ❑Outflow
Inflow.Area=2..700 ac....... o se ondary
Peak Elev=591.99;
9 r Stor g a e--`�'I 4,2 4 cf
7
6 /
0
4 /
3 " 0
0.00 cfs /9�j�j���
5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120
Time (hours)

Pet Suites Harrisburg SWM Type II 24-hr lyr-24hr Rainfall=2.90"
Prepared by OAK Engineering Printed 9/30/2022
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 9
Pond 12P: WET POND (as-built)
Stage-Discharge
/ ❑EaI
ry
- /- of OS
593 �/7�
.a o Emergency Spillway
1.7
w 592
2"Orifice
591
590 � •
0 10 20 30 40 50 60 70 80 90
Discharge (cfs)
Pond 12P: WET POND (as-built)
Stage-Area-Storage
❑Storage II
593
w
� 592=' a
�o
m
12"HDPE and 15'
591=' / i 15 CLASS IVY
_ 3
RCP Round 18"
590
Custom Stage Data /
0 5,000 10,000 15,000 20,000 25,000
Storage(cubic-feet)

Pet Suites Harrisburg SWM Type II 24-hr lyr-24hr Rainfall=2.90"
Prepared by OAK Engineering Printed 9/30/2022
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 10
Hydrograph for Pond 12P: WET POND (as-built)
Time Inflow Storage Elevation Outflow Primary Secondary
(hours) (cfs) (cubic-feet) (feet) (cfs) (cfs) (cfs)
5.00 0.00 0 589.50 0.00 0.00 0.00
7.50 0.04 1 589.50 0.04 0.04 0.00
10.00 0.15 402 589.59 0.04 0.04 0.00
12.50 0.75 12,041 591.67 0.13 0.13 0.00
15.00 0.22 14,023 591.95 0.14 0.14 0.00
17.50 0.14 14,284 591.99 0.14 0.14 0.00
20.00 0.10 14,071 591.96 0.14 0.14 0.00
22.50 0.09 13,626 591.89 0.14 0.14 0.00
25.00 0.00 12,870 591.79 0.13 0.13 0.00
27.50 0.00 11,713 591.62 0.12 0.12 0.00
30.00 0.00 10,652 591.47 0.11 0.11 0.00
32.50 0.00 9,695 591.32 0.10 0.10 0.00
35.00 0.00 8,854 591.19 0.09 0.09 0.00
37.50 0.00 8,146 591.08 0.07 0.07 0.00
40.00 0.00 7,612 590.99 0.05 0.05 0.00
42.50 0.00 7,219 590.92 0.04 0.04 0.00
45.00 0.00 6,859 590.86 0.04 0.04 0.00
47.50 0.00 6,499 590.80 0.04 0.04 0.00
50.00 0.00 6,139 590.73 0.04 0.04 0.00
52.50 0.00 5,779 590.67 0.04 0.04 0.00
55.00 0.00 5,419 590.60 0.04 0.04 0.00
57.50 0.00 5,059 590.54 0.04 0.04 0.00
60.00 0.00 4,699 590.47 0.04 0.04 0.00
62.50 0.00 4,339 590.40 0.04 0.04 0.00
65.00 0.00 3,979 590.34 0.04 0.04 0.00
67.50 0.00 3,619 590.27 0.04 0.04 0.00
70.00 0.00 3,259 590.20 0.04 0.04 0.00
72.50 0.00 2,899 590.12 0.04 0.04 0.00
75.00 0.00 2,539 590.05 0.04 0.04 0.00
77.50 0.00 2,179 589.98 0.04 0.04 0.00
80.00 0.00 1,819 589.90 0.04 0.04 0.00
82.50 0.00 1,459 589.83 0.04 0.04 0.00
85.00 0.00 1,099 589.75 0.04 0.04 0.00
87.50 0.00 739 589.67 0.04 0.04 0.00
90.00 0.00 379 589.59 0.04 0.04 0.00
92.50 0.00 19 589.50 0.04 0.04 0.00
95.00 0.00 0 589.50 0.00 0.00 0.00
97.50 0.00 0 589.50 0.00 0.00 0.00
100.00 0.00 0 589.50 0.00 0.00 0.00
102.50 0.00 0 589.50 0.00 0.00 0.00
105.00 0.00 0 589.50 0.00 0.00 0.00
107.50 0.00 0 589.50 0.00 0.00 0.00
110.00 0.00 0 589.50 0.00 0.00 0.00
112.50 0.00 0 589.50 0.00 0.00 0.00
115.00 0.00 0 589.50 0.00 0.00 0.00
117.50 0.00 0 589.50 0.00 0.00 0.00
120.00 0.00 0 589.50 0.00 0.00 0.00

Pet Suites Harrisburg SWM Type II 24-hr lyr-24hr Rainfall=2.90"
Prepared by OAK Engineering Printed 9/30/2022
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 11
Stage-Discharge for Pond 12P: WET POND (as-built)
Elevation Discharge Primary Secondary Elevation Discharge Primary Secondary
(feet) (cfs) (cfs) (cfs) (feet) (cfs) (cfs) (cfs)
589.50 0.00 0.00 0.00 592.35 0.16 0.16 0.00
589.55 0.04 0.04 0.00 592.40 0.16 0.16 0.00
589.60 0.04 0.04 0.00 592.45 0.17 0.17 0.00
589.65 0.04 0.04 0.00 592.50 0.17 0.17 0.00
589.70 0.04 0.04 0.00 592.55 0.17 0.17 0.00
589.75 0.04 0.04 0.00 592.60 0.17 0.17 0.00
589.80 0.04 0.04 0.00 592.65 0.18 0.18 0.00
589.85 0.04 0.04 0.00 592.70 0.43 0.18 0.26
589.90 0.04 0.04 0.00 592.75 1.05 0.18 0.87
589.95 0.04 0.04 0.00 592.80 1.87 0.18 1.68
590.00 0.04 0.04 0.00 592.85 2.85 0.18 2.66
590.05 0.04 0.04 0.00 592.90 3.97 0.19 3.79
590.10 0.04 0.04 0.00 592.95 6.31 1.27 5.04
590.15 0.04 0.04 0.00 593.00 11.33 4.92 6.41
590.20 0.04 0.04 0.00 593.05 17.89 10.00 7.89
590.25 0.04 0.04 0.00 593.10 25.63 16.17 9.46
590.30 0.04 0.04 0.00 593.15 34.39 23.28 11.11
590.35 0.04 0.04 0.00 593.20 44.06 31.20 12.86
590.40 0.04 0.04 0.00 593.25 54.55 39.87 14.68
590.45 0.04 0.04 0.00 593.30 60.76 44.24 16.52
590.50 0.04 0.04 0.00 593.35 62.87 44.48 18.38
590.55 0.04 0.04 0.00 593.40 65.02 44.72 20.30
590.60 0.04 0.04 0.00 593.45 67.23 44.96 22.27
590.65 0.04 0.04 0.00 593.50 69.56 45.19 24.37
590.70 0.04 0.04 0.00 593.55 71.98 45.43 26.55
590.75 0.04 0.04 0.00 593.60 74.46 45.66 28.80
590.80 0.04 0.04 0.00 593.65 76.99 45.89 31.09
590.85 0.04 0.04 0.00 593.70 79.62 46.12 33.50
590.90 0.04 0.04 0.00 593.75 82.33 46.35 35.98
590.95 0.04 0.04 0.00 593.80 85.10 46.58 38.52
591.00 0.05 0.05 0.00 593.85 87.93 46.81 41.12
591.05 0.06 0.06 0.00 593.90 90.78 47.04 43.74
591.10 0.07 0.07 0.00
591.15 0.08 0.08 0.00
591.20 0.09 0.09 0.00
591.25 0.09 0.09 0.00
591.30 0.10 0.10 0.00
591.35 0.10 0.10 0.00
591.40 0.11 0.11 0.00
591.45 0.11 0.11 0.00
591.50 0.11 0.11 0.00
591.55 0.12 0.12 0.00
591.60 0.12 0.12 0.00
591.65 0.13 0.13 0.00
591.70 0.13 0.13 0.00
591.75 0.13 0.13 0.00
591.80 0.13 0.13 0.00
591.85 0.14 0.14 0.00
591.90 0.14 0.14 0.00
591.95 0.14 0.14 0.00
592.00 0.15 0.15 0.00
592.05 0.15 0.15 0.00
592.10 0.15 0.15 0.00
592.15 0.15 0.15 0.00
592.20 0.16 0.16 0.00
592.25 0.16 0.16 0.00
592.30 0.16 0.16 0.00

Pet Suites Harrisburg SWM Type II 24-hr lyr-24hr Rainfall=2.90"
Prepared by OAK Engineering Printed 9/30/2022
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 12
Stage-Area-Storage for Pond 12P: WET POND (as-built)
Elevation Storage Elevation Storage
(feet) (cubic-feet) (feet) (cubic-feet)
589.50 0 592.35 16,957
589.55 214 592.40 17,330
589.60 432 592.45 17,705
589.65 652 592.50 18,082
589.70 876 592.55 18,461
589.75 1,103 592.60 18,842
589.80 1,333 592.65 19,225
589.85 1,566 592.70 19,610
589.90 1,802 592.75 19,999
589.95 2,041 592.80 20,390
590.00 2,284 592.85 20,784
590.05 2,529 592.90 21,181
590.10 2,777 592.95 21,581
590.15 3,027 593.00 21,983
590.20 3,280 593.05 22,389
590.25 3,536 593.10 22,798
590.30 3,793 593.15 23,210
590.35 4,054 593.20 23,626
590.40 4,316 593.25 24,045
590.45 4,582 593.30 24,467
590.50 4,850 593.35 24,892
590.55 5,120 593.40 25,321
590.60 5,394 593.45 25,753
590.65 5,671 593.50 26,188
590.70 5,950 593.55 26,626
590.75 6,233 593.60 27,068
590.80 6,518 593.65 27,513
590.85 6,806 593.70 27,961
590.90 7,098 593.75 28,413
590.95 7,393 593.80 28,868
591.00 7,691 593.85 29,326
591.05 7,993 593.90 29,787
591.10 8,298
591.15 8,607
591.20 8,920
591.25 9,236
591.30 9,557
591.35 9,881
591.40 10,209
591.45 10,540
591.50 10,876
591.55 11,215
591.60 11,557
591.65 11,903
591.70 12,251
591.75 12,603
591.80 12,957
591.85 13,313
591.90 13,671
591.95 14,030
592.00 14,391
592.05 14,754
592.10 15,118
592.15 15,483
592.20 15,849
592.25 16,216
592.30 16,586

ENGINEERINGOAK
10YR-24HR STORM EVENT
HYDROCAD OUTPUT
September 21, 2020

Pet Suites Harrisburg SWM Type 1124-hr 10yr-24hr Rainfall=5.10"
Prepared by {enter your company name here} Printed 9/21/2020
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 14
Time span=5.00-120.00 hrs, dt=0.05 hrs, 2301 points
Runoff by SCS TR-20 method, UH=SCS, Weighted-CN
Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method
Subcatchment 1S: PRE Runoff Area=2.700 ac 0.00% Impervious Runoff Depth=2.62"
Flow Length=536' Tc=10.0 min CN=76 Runoff=10.71 cfs 0.589 af
Subcatchment 2S: POST TO WET POND Runoff Area=0.940 ac 74.47% Impervious Runoff Depth>4.17"
Tc=5.0 min CN=92 Runoff=6.48 cfs 0.326 af
Subcatchment 9S: FUTURE OFF-SITE Runoff Area=1.760 ac 75.00% Impervious Runoff Depth>4.17"
Tc=5.0 min CN=92 Runoff=12.13 cfs 0.611 af
Pond 8P: WET POND Peak Elev=592.02' Storage=15,340 cf Inflow=18.60 cfs 0.938 af
Primary=10.71 cfs 0.937 af Secondary=0.00 cfs 0.000 af Outflow=10.71 cfs 0.937 af
Total Runoff Area = 5.400 ac Runoff Volume = 1.527 af Average Runoff Depth = 3.39"
62.59% Pervious = 3.380 ac 37.41% Impervious = 2.020 ac

Pet Suites Harrisburg SWM Type II 24-hr 10yr-24hr Rainfall=5.10"
Prepared by {enter your company name here} Printed 9/21/2020
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 15
Summary for Subcatchment 1S: PRE
Runoff = 10.71 cfs @ 12.02 hrs, Volume= 0.589 af, Depth= 2.62"
Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-120.00 hrs, dt= 0.05 hrs
Type II 24-hr 10yr-24hr Rainfall=5.10"
Area (ac) CN Description
2.700 76 Woods/grass comb., Fair, HSG C
2.700 100.00% Pervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
7.1 50 0.0259 0.12 Sheet Flow,
Grass: Dense n= 0.240 P2= 3.50"
2.9 486 0.0300 2.79 Shallow Concentrated Flow,
Unpaved Kv= 16.1 fps
10.0 536 Total
Subcatchment 1 S: PRE
Hydrograph
■Runoff
11-' 10.71 cfs I
Type...l.I...24-hr
10-•
10yr-24I r Rain all=5.10"
9
Runoff Area=2.700 ac
8-
Runoff..Vofume 0;580...af......
7-'
Runoff.Depth=262"
6
o = Flows..Len gth=536'
LL 5 ' /
4—
T+c=100 min
/ C N=7'6
3-
2=
0 ,,
5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120
Time (hours)

Pet Suites Harrisburg SWM Type II 24-hr 10yr-24hr Rainfall=5.10"
Prepared by {enter your company name here} Printed 9/21/2020
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 16
Summary for Subcatchment 2S: POST TO WET POND
[49] Hint: Tc<2dt may require smaller dt
Runoff = 6.48 cfs @ 11.95 hrs, Volume= 0.326 af, Depth> 4.17"
Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-120.00 hrs, dt= 0.05 hrs
Type II 24-hr 10yr-24hr Rainfall=5.10"
Area (ac) CN Description
* 0.700 98 Paved parking / Building, HSG C
0.240 74 >75% Grass cover, Good, HSG C
0.940 92 Weighted Average
0.240 25.53% Pervious Area
0.700 74.47% Impervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
5.0 Direct Entry,
Subcatchment 2S: POST TO WET POND
iiiiii Hydrograph
7_ .. •Runoff
,6.48 cfs I
t r t r t Type...H -2.4-h.r.......
6—'
10yr-24hr Rainfall=5.10"
Runoff area=0�94( ac
5
Runoff Volume=0.326 of
` Runoff Depth>4R17"
= Tc=5..0...m.i.n.......
3-`
CN=92
2-
I
1 ``
10
0'
5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120
Time (hours)

Pet Suites Harrisburg SWM Type II 24-hr 10yr-24hr Rainfall=5.10"
Prepared by {enter your company name here} Printed 9/21/2020
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 17
Summary for Subcatchment 9S: FUTURE OFF-SITE
[49] Hint: Tc<2dt may require smaller dt
Runoff = 12.13 cfs @ 11.95 hrs, Volume= 0.611 af, Depth> 4.17"
Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-120.00 hrs, dt= 0.05 hrs
Type II 24-hr 10yr-24hr Rainfall=5.10"
Area (ac) CN Description
* 1.320 98 Paved parking / Building, HSG C
0.440 74 >75% Grass cover, Good, HSG C
1.760 92 Weighted Average
0.440 25.00% Pervious Area
1.320 75.00% Impervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
5.0 Direct Entry,
Subcatchment 9S: FUTURE OFF-SITE
Hydrograph
■Runoff
13-
- �12.13 cfs I
127e Type II 24-hr
11 / 1..Oyr-24.hr Ra.infall..=...5 .1..0"
10-
] Runoff Area=1.760...alc....
Rurioff Volume=0 6.11 of
8_ .;
= r
Runoff Dept >4R1'7"
T. 67 Tc=5.0 min
5= CN=92
4
3
2J..
,//
5 10 15 20 25 30 35 40 45 50 55 60 65 70,/ (//
75 80 85 90 95 100 105 110 115 120
Time (hours)

Pet Suites Harrisburg SWM Type 1124-hr 10yr-24hr Rainfall=5.10"
Prepared by {enter your company name here} Printed 9/21/2020
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 18
Summary for Pond 8P: WET POND
[82] Warning: Early inflow requires earlier time span
Inflow Area = 2.700 ac, 74.81% Impervious, Inflow Depth > 4.17" for 10yr-24hr event
Inflow = 18.60 cfs @ 11.95 hrs, Volume= 0.938 af
Outflow = 10.71 cfs @ 12.04 hrs, Volume= 0.937 af, Atten= 42%, Lag= 5.2 min
Primary = 10.71 cfs @ 12.04 hrs, Volume= 0.937 af
Secondary= 0.00 cfs @ 5.00 hrs, Volume= 0.000 af
Routing by Dyn-Stor-Ind method, Time Span= 5.00-120.00 hrs, dt= 0.05 hrs
Peak Elev= 592.02' @ 12.04 hrs Surf.Area= 7,720 sf Storage= 15,340 cf
Plug-Flow detention time= 319.9 min calculated for 0.937 af(100% of inflow)
Center-of-Mass det. time= 319.1 min ( 1,099.2 - 780.2 )
Volume Invert Avail.Storage Storage Description
#1 589.50' 32,284 cf Custom Stage Data (Prismatic) Listed below (Recalc)
#2 590.39' 107 cf 18.0" Round RCP_Round 18"
L= 60.3' S= 0.0050 '/'
#3 590.69' 88 cf 15.0" Round RCP_Round 15"
L= 72.0' S= 0.0050 '/'
#4 591.15' 67 cf 15.0" Round RCP_Round 15"
L= 54.3' S= 0.0050 '/'
#5 590.79' 46 cf 12.0" Round 12" HDPE
L= 59.1' S= 0.0050 '/'
#6 591.09' 107 cf 12.0" Round 12" HDPE
L= 136.8' S= 0.0050 '/'
32,699 cf Total Available Storage
Elevation Surf.Area Inc.Store Cum.Store
(feet) (sq-ft) (cubic-feet) (cubic-feet)
589.50 4,265 0 0
590.00 5,087 2,338 2,338
591.00 6,223 5,655 7,993
592.00 7,436 6,830 14,823
593.00 8,715 8,076 22,898
594.00 10,057 9,386 32,284
Device Routing Invert Outlet Devices
#1 Device 2 589.50' 2.0"Vert. 2" Orifice C= 0.600
#2 Primary 588.75' 24.0" Round Culvert
L= 20.0' RCP, rounded edge headwall, Ke= 0.100
Inlet/ Outlet Invert= 588.75' / 588.65' S= 0.0050 '/' Cc= 0.900
n= 0.012, Flow Area= 3.14 sf
#3 Device 2 593.00' 48.0" x 48.0" Horiz. TOP of OS X 4.00 C= 0.600
Limited to weir flow at low heads
#4 Secondary 593.50' 10.0' long x 6.0' breadth Emergency Spillway
Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80
2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50
Coef. (English) 2.37 2.51 2.70 2.68 2.68 2.67 2.65 2.65 2.65
2.65 2.66 2.66 2.67 2.69 2.72 2.76 2.83
#5 Device 2 591.00' 15.0"W x 6.0" H Vert. Orifice/Grate X 4.00 C= 0.600

Pet Suites Harrisburg SWM Type 1124-hr 10yr-24hr Rainfall=5.10"
Prepared by {enter your company name here} Printed 9/21/2020
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 19
Primary OutFlow Max=10.62 cfs @ 12.04 hrs HW=592.01' (Free Discharge)
Li=Culvert (Passes 10.62 cfs of 25.68 cfs potential flow)
—1=2" Orifice (Orifice Controls 0.16 cfs @ 7.50 fps)
—3=TOP of OS ( Controls 0.00 cfs)
—5=Orifice/Grate (Orifice Controls 10.46 cfs @ 4.18 fps)
Secondary OutFlow Max=0.00 cfs @ 5.00 hrs HW=589.50' (Free Discharge)
L4=Emergency Spillway ( Controls 0.00 cfs)
Pond 8P: WET POND
Hydrograph
❑Inflow
r` . 8syfs 1i i i i ❑Outflow
. Iral Area
i
w... ,1b0 a
❑Primary
20 ,,; .,: ;;'' Second ry
p C
19 ':; ;; :' ..... Peak"'E lev=532':02'
18 a a
16
15 '
14 10.7l cfs
13 .
12 r
11 '
c 10 .
LL 9
8
7 '
6 .
5 "
o.00 ors rZ ab..._//////////�����������������������������������������������������������������������//
0
5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120
Time (hours)

Pet Suites Harrisburg SWM Type 1124-hr 10yr-24hr Rainfall=5.10"
Prepared by {enter your company name here} Printed 9/21/2020
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 20
Stage-Discharge for Pond 8P: WET POND
Elevation Discharge Primary Secondary Elevation Discharge Primary Secondary
(feet) (cfs) (cfs) (cfs) (feet) (cfs) (cfs) (cfs)
589.50 0.00 0.00 0.00 592.35 12.77 12.77 0.00
589.55 0.00 0.00 0.00 592.40 13.06 13.06 0.00
589.60 0.01 0.01 0.00 592.45 13.34 13.34 0.00
589.65 0.03 0.03 0.00 592.50 13.62 13.62 0.00
589.70 0.04 0.04 0.00 592.55 13.88 13.88 0.00
589.75 0.04 0.04 0.00 592.60 14.15 14.15 0.00
589.80 0.05 0.05 0.00 592.65 14.41 14.41 0.00
589.85 0.05 0.05 0.00 592.70 14.66 14.66 0.00
589.90 0.06 0.06 0.00 592.75 14.91 14.91 0.00
589.95 0.06 0.06 0.00 592.80 15.16 15.16 0.00
590.00 0.07 0.07 0.00 592.85 15.40 15.40 0.00
590.05 0.07 0.07 0.00 592.90 15.64 15.64 0.00
590.10 0.08 0.08 0.00 592.95 15.87 15.87 0.00
590.15 0.08 0.08 0.00 593.00 16.10 16.10 0.00
590.20 0.08 0.08 0.00 593.05 18.67 18.67 0.00
590.25 0.09 0.09 0.00 593.10 23.18 23.18 0.00
590.30 0.09 0.09 0.00 593.15 28.94 28.94 0.00
590.35 0.09 0.09 0.00 593.20 35.14 35.14 0.00
590.40 0.09 0.09 0.00 593.25 35.49 35.49 0.00
590.45 0.10 0.10 0.00 593.30 35.82 35.82 0.00
590.50 0.10 0.10 0.00 593.35 36.16 36.16 0.00
590.55 0.10 0.10 0.00 593.40 36.49 36.49 0.00
590.60 0.11 0.11 0.00 593.45 36.82 36.82 0.00
590.65 0.11 0.11 0.00 593.50 37.15 37.15 0.00
590.70 0.11 0.11 0.00 593.55 37.74 37.48 0.26
590.75 0.11 0.11 0.00 593.60 38.55 37.80 0.75
590.80 0.12 0.12 0.00 593.65 39.49 38.12 1.38
590.85 0.12 0.12 0.00 593.70 40.55 38.43 2.12
590.90 0.12 0.12 0.00 593.75 41.75 38.75 3.01
590.95 0.12 0.12 0.00 593.80 43.07 39.06 4.01
591.00 0.13 0.13 0.00 593.85 44.49 39.37 5.12
591.05 0.31 0.31 0.00 593.90 46.02 39.67 6.35
591.10 0.64 0.64 0.00 593.95 47.70 39.98 7.72
591.15 1.06 1.06 0.00 594.00 49.49 40.28 9.21
591.20 1.57 1.57 0.00
591.25 2.14 2.14 0.00
591.30 2.77 2.77 0.00
591.35 3.46 3.46 0.00
591.40 4.20 4.20 0.00
591.45 4.99 4.99 0.00
591.50 5.82 5.82 0.00
591.55 6.51 6.51 0.00
591.60 7.10 7.10 0.00
591.65 7.63 7.63 0.00
591.70 8.12 8.12 0.00
591.75 8.57 8.57 0.00
591.80 9.00 9.00 0.00
591.85 9.41 9.41 0.00
591.90 9.80 9.80 0.00
591.95 10.18 10.18 0.00
592.00 10.54 10.54 0.00
592.05 10.89 10.89 0.00
592.10 11.22 11.22 0.00
592.15 11.55 11.55 0.00
592.20 11.87 11.87 0.00
592.25 12.18 12.18 0.00
592.30 12.48 12.48 0.00

Pet Suites Harrisburg SWM Type 1124-hr 10yr-24hr Rainfall=5.10"
Prepared by {enter your company name here} Printed 9/21/2020
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 21
Stage-Area-Storage for Pond 8P: WET POND
Elevation Storage Elevation Storage
(feet) (cubic-feet) (feet) (cubic-feet)
589.50 0 592.35 17,901
589.55 215 592.40 18,302
589.60 435 592.45 18,705
589.65 658 592.50 19,110
589.70 886 592.55 19,518
589.75 1,118 592.60 19,928
589.80 1,353 592.65 20,341
589.85 1,593 592.70 20,756
589.90 1,838 592.75 21,175
589.95 2,086 592.80 21,596
590.00 2,338 592.85 22,021
590.05 2,594 592.90 22,448
590.10 2,852 592.95 22,879
590.15 3,114 593.00 23,313
590.20 3,378 593.05 23,751
590.25 3,645 593.10 24,192
590.30 3,915 593.15 24,636
590.35 4,188 593.20 25,083
590.40 4,464 593.25 25,534
590.45 4,742 593.30 25,988
590.50 5,024 593.35 26,446
590.55 5,309 593.40 26,907
590.60 5,597 593.45 27,371
590.65 5,889 593.50 27,839
590.70 6,184 593.55 28,310
590.75 6,482 593.60 28,784
590.80 6,784 593.65 29,262
590.85 7,090 593.70 29,743
590.90 7,399 593.75 30,227
590.95 7,712 593.80 30,715
591.00 8,029 593.85 31,206
591.05 8,350 593.90 31,700
591.10 8,675 593.95 32,198
591.15 9,004 594.00 32,699
591.20 9,337
591.25 9,673
591.30 10,014
591.35 10,359
591.40 10,708
591.45 11,061
591.50 11,418
591.55 11,778
591.60 12,142
591.65 12,509
591.70 12,880
591.75 13,254
591.80 13,630
591.85 14,009
591.90 14,390
591.95 14,773
592.00 15,158
592.05 15,544
592.10 15,931
592.15 16,321
592.20 16,713
592.25 17,107
592.30 17,503

ENGINEERINGOAK
10YR-24HR STORM EVENT AS-BUILT
HYDROCAD OUTPUT
October 23, 2020

Pet Suites Harrisburg SWM Type II 24-hr 10yr-24hr Rainfall=5.10"
Prepared by OAK Engineering Printed 9/30/2022
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 1
Summary for Subcatchment 1S: PRE
Runoff = 10.71 cfs @ 12.02 hrs, Volume= 0.589 af, Depth= 2.62"
Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-120.00 hrs, dt= 0.05 hrs
Type II 24-hr 10yr-24hr Rainfall=5.10"
Area (ac) CN Description
2.700 76 Woods/grass comb., Fair, HSG C
2.700 100.00% Pervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
7.1 50 0.0259 0.12 Sheet Flow,
Grass: Dense n= 0.240 P2= 3.50"
2.9 486 0.0300 2.79 Shallow Concentrated Flow,
Unpaved Kv= 16.1 fps
10.0 536 Total
Subcatchment 1 S: PRE
Hydrograph
■Runoff
11-' 10.71 cfs I
Type...l.I...24-hr
10-•
10yr-24hr Rain all=5.1-O"
9
Runoff Area=2.700 ac
8-
Runoff..Vofume 0;580...af......
7-'
Runoff.Depth=262"
6
o = Flows..Len gth=536'
LL 5 ' /
4—
T+c=100 min
/ C N=7'6
3-
2=
0 ,, ��/1���/�
5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120
Time (hours)

Pet Suites Harrisburg SWM Type 1124-hr 10yr-24hr Rainfall=5.10"
Prepared by OAK Engineering Printed 9/30/2022
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 2
Hydrograph for Subcatchment 1S: PRE
Time Precip. Excess Runoff
(hours) (inches) (inches) (cfs)
5.00 0.32 0.00 0.00
7.50 0.56 0.00 0.00
10.00 0.92 0.02 0.08
12.50 3.75 1.55 1.26
15.00 4.35 2.01 0.34
17.50 4.65 2.25 0.22
20.00 4.86 2.42 0.15
22.50 5.01 2.55 0.14
25.00 5.10 2.62 0.00
27.50 5.10 2.62 0.00
30.00 5.10 2.62 0.00
32.50 5.10 2.62 0.00
35.00 5.10 2.62 0.00
37.50 5.10 2.62 0.00
40.00 5.10 2.62 0.00
42.50 5.10 2.62 0.00
45.00 5.10 2.62 0.00
47.50 5.10 2.62 0.00
50.00 5.10 2.62 0.00
52.50 5.10 2.62 0.00
55.00 5.10 2.62 0.00
57.50 5.10 2.62 0.00
60.00 5.10 2.62 0.00
62.50 5.10 2.62 0.00
65.00 5.10 2.62 0.00
67.50 5.10 2.62 0.00
70.00 5.10 2.62 0.00
72.50 5.10 2.62 0.00
75.00 5.10 2.62 0.00
77.50 5.10 2.62 0.00
80.00 5.10 2.62 0.00
82.50 5.10 2.62 0.00
85.00 5.10 2.62 0.00
87.50 5.10 2.62 0.00
90.00 5.10 2.62 0.00
92.50 5.10 2.62 0.00
95.00 5.10 2.62 0.00
97.50 5.10 2.62 0.00
100.00 5.10 2.62 0.00
102.50 5.10 2.62 0.00
105.00 5.10 2.62 0.00
107.50 5.10 2.62 0.00
110.00 5.10 2.62 0.00
112.50 5.10 2.62 0.00
115.00 5.10 2.62 0.00
117.50 5.10 2.62 0.00
120.00 5.10 2.62 0.00

Pet Suites Harrisburg SWM Type II 24-hr 10yr-24hr Rainfall=5.10"
Prepared by OAK Engineering Printed 9/30/2022
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 3
Summary for Subcatchment 10S: POST TO WET POND
[49] Hint: Tc<2dt may require smaller dt
Runoff = 6.48 cfs @ 11.95 hrs, Volume= 0.326 af, Depth> 4.17"
Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-120.00 hrs, dt= 0.05 hrs
Type II 24-hr 10yr-24hr Rainfall=5.10"
Area (ac) CN Description
* 0.700 98 Paved parking / Building, HSG C
0.240 74 >75% Grass cover, Good, HSG C
0.940 92 Weighted Average
0.240 25.53% Pervious Area
0.700 74.47% Impervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
5.0 Direct Entry,
Subcatchment 10S: POST TO WET POND
Hydrograph
7_: •Runoff
6.48 cfs I
= Type...II 2.4-.h.r.......
10yr-24hr Rainfall=5.10"
5- Runoff area=0.940 ac
Runoff Volume=0.326 of
= Runoff Depth>4.17"
0
LL
3-;"'
CN=92
2-
1. I�
5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120
Time (hours)

Pet Suites Harrisburg SWM Type 1124-hr 10yr-24hr Rainfall=5.10"
Prepared by OAK Engineering Printed 9/30/2022
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 4
Hydrograph for Subcatchment 10S: POST TO WET POND
Time Precip. Excess Runoff
(hours) (inches) (inches) (cfs)
5.00 0.32 0.02 0.02
7.50 0.56 0.12 0.05
10.00 0.92 0.35 0.13
12.50 3.75 2.88 0.49
15.00 4.35 3.46 0.14
17.50 4.65 3.75 0.09
20.00 4.86 3.95 0.06
22.50 5.01 4.10 0.06
25.00 5.10 4.19 0.00
27.50 5.10 4.19 0.00
30.00 5.10 4.19 0.00
32.50 5.10 4.19 0.00
35.00 5.10 4.19 0.00
37.50 5.10 4.19 0.00
40.00 5.10 4.19 0.00
42.50 5.10 4.19 0.00
45.00 5.10 4.19 0.00
47.50 5.10 4.19 0.00
50.00 5.10 4.19 0.00
52.50 5.10 4.19 0.00
55.00 5.10 4.19 0.00
57.50 5.10 4.19 0.00
60.00 5.10 4.19 0.00
62.50 5.10 4.19 0.00
65.00 5.10 4.19 0.00
67.50 5.10 4.19 0.00
70.00 5.10 4.19 0.00
72.50 5.10 4.19 0.00
75.00 5.10 4.19 0.00
77.50 5.10 4.19 0.00
80.00 5.10 4.19 0.00
82.50 5.10 4.19 0.00
85.00 5.10 4.19 0.00
87.50 5.10 4.19 0.00
90.00 5.10 4.19 0.00
92.50 5.10 4.19 0.00
95.00 5.10 4.19 0.00
97.50 5.10 4.19 0.00
100.00 5.10 4.19 0.00
102.50 5.10 4.19 0.00
105.00 5.10 4.19 0.00
107.50 5.10 4.19 0.00
110.00 5.10 4.19 0.00
112.50 5.10 4.19 0.00
115.00 5.10 4.19 0.00
117.50 5.10 4.19 0.00
120.00 5.10 4.19 0.00

Pet Suites Harrisburg SWM Type II 24-hr 10yr-24hr Rainfall=5.10"
Prepared by OAK Engineering Printed 9/30/2022
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 5
Summary for Subcatchment 11S: FUTURE OFF-SITE
[49] Hint: Tc<2dt may require smaller dt
Runoff = 12.13 cfs @ 11.95 hrs, Volume= 0.611 af, Depth> 4.17"
Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-120.00 hrs, dt= 0.05 hrs
Type II 24-hr 10yr-24hr Rainfall=5.10"
Area (ac) CN Description
* 1.320 98 Paved parking / Building, HSG C
0.440 74 >75% Grass cover, Good, HSG C
1.760 92 Weighted Average
0.440 25.00% Pervious Area
1.320 75.00% Impervious Area
Tc Length Slope Velocity Capacity Description
(min) (feet) (ft/ft) (ft/sec) (cfs)
5.0 Direct Entry,
Subcatchment 11S: FUTURE OFF-SITE
Hydrograph
■Runoff
13-
- �12.13 cfs I
127e Type II 24-hr
11 / 1..Oyr-24.hr Ra.infall..=...5 .1..0"
10-
] Runoff Area=1.760...alc....
Rurioff Volume=0 6.11 of
8_ .;
= r
Runoff Dept >4R1'7"
T. 67 Tc=5.0 min
5= CN=92
4
3
2J..
,//
5 10 15 20 25 30 35 40 45 50 55 60 65 70,/ (//
75 80 85 90 95 100 105 110 115 120
Time (hours)

Pet Suites Harrisburg SWM Type 1124-hr 10yr-24hr Rainfall=5.10"
Prepared by OAK Engineering Printed 9/30/2022
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 6
Hydrograph for Subcatchment 11 S: FUTURE OFF-SITE
Time Precip. Excess Runoff
(hours) (inches) (inches) (cfs)
5.00 0.32 0.02 0.04
7.50 0.56 0.12 0.10
10.00 0.92 0.35 0.25
12.50 3.75 2.88 0.91
15.00 4.35 3.46 0.27
17.50 4.65 3.75 0.17
20.00 4.86 3.95 0.12
22.50 5.01 4.10 0.10
25.00 5.10 4.19 0.00
27.50 5.10 4.19 0.00
30.00 5.10 4.19 0.00
32.50 5.10 4.19 0.00
35.00 5.10 4.19 0.00
37.50 5.10 4.19 0.00
40.00 5.10 4.19 0.00
42.50 5.10 4.19 0.00
45.00 5.10 4.19 0.00
47.50 5.10 4.19 0.00
50.00 5.10 4.19 0.00
52.50 5.10 4.19 0.00
55.00 5.10 4.19 0.00
57.50 5.10 4.19 0.00
60.00 5.10 4.19 0.00
62.50 5.10 4.19 0.00
65.00 5.10 4.19 0.00
67.50 5.10 4.19 0.00
70.00 5.10 4.19 0.00
72.50 5.10 4.19 0.00
75.00 5.10 4.19 0.00
77.50 5.10 4.19 0.00
80.00 5.10 4.19 0.00
82.50 5.10 4.19 0.00
85.00 5.10 4.19 0.00
87.50 5.10 4.19 0.00
90.00 5.10 4.19 0.00
92.50 5.10 4.19 0.00
95.00 5.10 4.19 0.00
97.50 5.10 4.19 0.00
100.00 5.10 4.19 0.00
102.50 5.10 4.19 0.00
105.00 5.10 4.19 0.00
107.50 5.10 4.19 0.00
110.00 5.10 4.19 0.00
112.50 5.10 4.19 0.00
115.00 5.10 4.19 0.00
117.50 5.10 4.19 0.00
120.00 5.10 4.19 0.00

Pet Suites Harrisburg SWM Type 1124-hr 10yr-24hr Rainfall=5.10"
Prepared by OAK Engineering Printed 9/30/2022
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 7
Summary for Pond 12P: WET POND (as-built)
[82] Warning: Early inflow requires earlier time span
Inflow Area = 2.700 ac, 74.81% Impervious, Inflow Depth > 4.17" for 10yr-24hr event
Inflow = 18.60 cfs @ 11.95 hrs, Volume= 0.938 af
Outflow = 6.85 cfs @ 12.07 hrs, Volume= 0.938 af, Atten= 63%, Lag= 7.4 min
Primary = 1.34 cfs @ 12.07 hrs, Volume= 0.650 af
Secondary= 5.51 cfs @ 12.07 hrs, Volume= 0.288 af
Routing by Dyn-Stor-Ind method, Time Span= 5.00-120.00 hrs, dt= 0.05 hrs
Peak Elev= 592.97' @ 12.07 hrs Surf.Area= 8,050 sf Storage= 21,760 cf
Plug-Flow detention time= 1,139.2 min calculated for 0.937 of(100% of inflow)
Center-of-Mass det. time= 1,140.7 min ( 1,920.9 - 780.2 )
Volume Invert Avail.Storage Storage Description
#1 589.50' 29,561 cf Custom Stage Data (Prismatic) Listed below (Recalc)
#2 590.38' 104 cf 18.0" Round RCP_Round 18"
L= 59.1' S= 0.0066 '/'
#3 590.77' 89 cf 15.0" Round RCP_Round 15"
L= 72.7' S= 0.0050 '/'
#4 591.17' 66 cf 15.0" Round RCP_Round 15"
L= 53.9' S= 0.0059 '/'
#5 590.82' 45 cf 12.0" Round 15" CLASS IV
L= 56.8' S= 0.0069 '/'
#6 591.10' 108 cf 12.0" Round 12" HDPE
L= 137.2' S= 0.0043 '/'
29,973 cf Total Available Storage
Elevation Surf.Area Inc.Store Cum.Store
(feet) (sq-ft) (cubic-feet) (cubic-feet)
589.50 4,254 0 0
590.00 4,882 2,284 2,284
591.00 5,875 5,379 7,663
592.00 6,930 6,403 14,065
593.00 8,082 7,506 21,571
593.92 9,287 7,990 29,561
Device Routing Invert Outlet Devices
#1 Device 3 588.10' 0.040 cfs 4" perforated pipe
#2 Device 3 590.91' 2.0"Vert. 2" Orifice C= 0.600
#3 Primary 587.70' 24.0" Round Culvert
L= 19.9' RCP, rounded edge headwall, Ke= 0.100
Inlet/ Outlet Invert= 587.70' / 587.17' S= 0.0266 '/' Cc= 0.900
n= 0.012, Flow Area= 3.14 sf
#4 Device 3 592.92' 48.0" x 48.0" Horiz. TOP of OS X 4.00 C= 0.600
Limited to weir flow at low heads
#5 Secondary 592.66' 12.0' long x 20.0' breadth Emergency Spillway
Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60
Coef. (English) 2.68 2.70 2.70 2.64 2.63 2.64 2.64 2.63

Pet Suites Harrisburg SWM Type 1124-hr 10yr-24hr Rainfall=5.10"
Prepared by OAK Engineering Printed 9/30/2022
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 8
Primary OutFlow Max=1.21 cfs @ 12.07 hrs HW=592.95' (Free Discharge)
LI=Culvert (Passes 1.21 cfs of 42.52 cfs potential flow)
—1=4" perforated pipe (Constant Controls 0.04 cfs)
—2=2" Orifice (Orifice Controls 0.15 cfs @ 6.73 fps)
—4=TOP of OS (Weir Controls 1.02 cfs @ 0.55 fps)
Secondary OutFlow Max=5.01 cfs @ 12.07 hrs HW=592.95' (Free Discharge)
L5=Emergency Spillway (Weir Controls 5.01 cfs @ 1.44 fps)
Pond 12P: WET POND (as-built)
Hydrograph
❑Inflow
:` asyr5 ❑Outflow
: :: 4 a Inflowea=•2>�r �7b�1 a Secondary
❑Primary
a
19= / Peak E lev=592 97'
18=
17 :: $torage=2•1,76Q....cf
14:.
13='
p10 •.:' :16.85 ds
77
6_: 0
•'15.51 cfs l
4 , ///////%//////////// /ffa7
/ /
5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120
Time (hours)

Pet Suites Harrisburg SWM Type 1124-hr 10yr-24hr Rainfall=5.10"
Prepared by OAK Engineering Printed 9/30/2022
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 9
Pond 12P: WET POND (as-built)
Stage-Discharge
/ ❑EaI
ry
- /- of OS
593 �/7�
.a o Emergency Spillway
1.7
w 592
2"Orifice
W /fj
591
590 � •
0 10 20 30 40 50 60 70 80 90
Discharge (cfs)
Pond 12P: WET POND (as-built)
Stage-Area-Storage
❑Storage II
593
w
� 592=' a
�o
m
12"HDPE and 15'
591=' / i 15 CLASS IVY
_ 3
RCP Round 18"
590
Custom Stage Data /
0 5,000 10,000 15,000 20,000 25,000
Storage(cubic-feet)

Pet Suites Harrisburg SWM Type 1124-hr 10yr-24hr Rainfall=5.10"
Prepared by OAK Engineering Printed 9/30/2022
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 10
Hydrograph for Pond 12P: WET POND (as-built)
Time Inflow Storage Elevation Outflow Primary Secondary
(hours) (cfs) (cubic-feet) (feet) (cfs) (cfs) (cfs)
5.00 0.06 2 589.50 0.04 0.04 0.00
7.50 0.15 556 589.63 0.04 0.04 0.00
10.00 0.38 2,380 590.02 0.04 0.04 0.00
12.50 1.40 20,360 592.80 1.80 0.18 1.62
15.00 0.41 19,608 592.70 0.43 0.18 0.25
17.50 0.26 19,462 592.68 0.27 0.18 0.10
20.00 0.18 19,354 592.67 0.19 0.18 0.02
22.50 0.16 19,256 592.65 0.18 0.18 0.00
25.00 0.00 18,564 592.56 0.17 0.17 0.00
27.50 0.00 17,058 592.36 0.16 0.16 0.00
30.00 0.00 15,632 592.17 0.15 0.15 0.00
32.50 0.00 14,288 591.99 0.14 0.14 0.00
35.00 0.00 13,029 591.81 0.13 0.13 0.00
37.50 0.00 11,860 591.64 0.12 0.12 0.00
40.00 0.00 10,786 591.49 0.11 0.11 0.00
42.50 0.00 9,815 591.34 0.10 0.10 0.00
45.00 0.00 8,958 591.21 0.09 0.09 0.00
47.50 0.00 8,231 591.09 0.07 0.07 0.00
50.00 0.00 7,672 591.00 0.05 0.05 0.00
52.50 0.00 7,267 590.93 0.04 0.04 0.00
55.00 0.00 6,907 590.87 0.04 0.04 0.00
57.50 0.00 6,547 590.81 0.04 0.04 0.00
60.00 0.00 6,187 590.74 0.04 0.04 0.00
62.50 0.00 5,827 590.68 0.04 0.04 0.00
65.00 0.00 5,467 590.61 0.04 0.04 0.00
67.50 0.00 5,107 590.55 0.04 0.04 0.00
70.00 0.00 4,747 590.48 0.04 0.04 0.00
72.50 0.00 4,387 590.41 0.04 0.04 0.00
75.00 0.00 4,027 590.34 0.04 0.04 0.00
77.50 0.00 3,667 590.28 0.04 0.04 0.00
80.00 0.00 3,307 590.21 0.04 0.04 0.00
82.50 0.00 2,947 590.13 0.04 0.04 0.00
85.00 0.00 2,587 590.06 0.04 0.04 0.00
87.50 0.00 2,227 589.99 0.04 0.04 0.00
90.00 0.00 1,867 589.91 0.04 0.04 0.00
92.50 0.00 1,507 589.84 0.04 0.04 0.00
95.00 0.00 1,147 589.76 0.04 0.04 0.00
97.50 0.00 787 589.68 0.04 0.04 0.00
100.00 0.00 427 589.60 0.04 0.04 0.00
102.50 0.00 67 589.52 0.04 0.04 0.00
105.00 0.00 0 589.50 0.00 0.00 0.00
107.50 0.00 0 589.50 0.00 0.00 0.00
110.00 0.00 0 589.50 0.00 0.00 0.00
112.50 0.00 0 589.50 0.00 0.00 0.00
115.00 0.00 0 589.50 0.00 0.00 0.00
117.50 0.00 0 589.50 0.00 0.00 0.00
120.00 0.00 0 589.50 0.00 0.00 0.00

Pet Suites Harrisburg SWM Type 1124-hr 10yr-24hr Rainfall=5.10"
Prepared by OAK Engineering Printed 9/30/2022
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 11
Stage-Discharge for Pond 12P: WET POND (as-built)
Elevation Discharge Primary Secondary Elevation Discharge Primary Secondary
(feet) (cfs) (cfs) (cfs) (feet) (cfs) (cfs) (cfs)
589.50 0.00 0.00 0.00 592.35 0.16 0.16 0.00
589.55 0.04 0.04 0.00 592.40 0.16 0.16 0.00
589.60 0.04 0.04 0.00 592.45 0.17 0.17 0.00
589.65 0.04 0.04 0.00 592.50 0.17 0.17 0.00
589.70 0.04 0.04 0.00 592.55 0.17 0.17 0.00
589.75 0.04 0.04 0.00 592.60 0.17 0.17 0.00
589.80 0.04 0.04 0.00 592.65 0.18 0.18 0.00
589.85 0.04 0.04 0.00 592.70 0.43 0.18 0.26
589.90 0.04 0.04 0.00 592.75 1.05 0.18 0.87
589.95 0.04 0.04 0.00 592.80 1.87 0.18 1.68
590.00 0.04 0.04 0.00 592.85 2.85 0.18 2.66
590.05 0.04 0.04 0.00 592.90 3.97 0.19 3.79
590.10 0.04 0.04 0.00 592.95 6.31 1.27 5.04
590.15 0.04 0.04 0.00 593.00 11.33 4.92 6.41
590.20 0.04 0.04 0.00 593.05 17.89 10.00 7.89
590.25 0.04 0.04 0.00 593.10 25.63 16.17 9.46
590.30 0.04 0.04 0.00 593.15 34.39 23.28 11.11
590.35 0.04 0.04 0.00 593.20 44.06 31.20 12.86
590.40 0.04 0.04 0.00 593.25 54.55 39.87 14.68
590.45 0.04 0.04 0.00 593.30 60.76 44.24 16.52
590.50 0.04 0.04 0.00 593.35 62.87 44.48 18.38
590.55 0.04 0.04 0.00 593.40 65.02 44.72 20.30
590.60 0.04 0.04 0.00 593.45 67.23 44.96 22.27
590.65 0.04 0.04 0.00 593.50 69.56 45.19 24.37
590.70 0.04 0.04 0.00 593.55 71.98 45.43 26.55
590.75 0.04 0.04 0.00 593.60 74.46 45.66 28.80
590.80 0.04 0.04 0.00 593.65 76.99 45.89 31.09
590.85 0.04 0.04 0.00 593.70 79.62 46.12 33.50
590.90 0.04 0.04 0.00 593.75 82.33 46.35 35.98
590.95 0.04 0.04 0.00 593.80 85.10 46.58 38.52
591.00 0.05 0.05 0.00 593.85 87.93 46.81 41.12
591.05 0.06 0.06 0.00 593.90 90.78 47.04 43.74
591.10 0.07 0.07 0.00
591.15 0.08 0.08 0.00
591.20 0.09 0.09 0.00
591.25 0.09 0.09 0.00
591.30 0.10 0.10 0.00
591.35 0.10 0.10 0.00
591.40 0.11 0.11 0.00
591.45 0.11 0.11 0.00
591.50 0.11 0.11 0.00
591.55 0.12 0.12 0.00
591.60 0.12 0.12 0.00
591.65 0.13 0.13 0.00
591.70 0.13 0.13 0.00
591.75 0.13 0.13 0.00
591.80 0.13 0.13 0.00
591.85 0.14 0.14 0.00
591.90 0.14 0.14 0.00
591.95 0.14 0.14 0.00
592.00 0.15 0.15 0.00
592.05 0.15 0.15 0.00
592.10 0.15 0.15 0.00
592.15 0.15 0.15 0.00
592.20 0.16 0.16 0.00
592.25 0.16 0.16 0.00
592.30 0.16 0.16 0.00

Pet Suites Harrisburg SWM Type 1124-hr 10yr-24hr Rainfall=5.10"
Prepared by OAK Engineering Printed 9/30/2022
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 12
Stage-Area-Storage for Pond 12P: WET POND (as-built)
Elevation Storage Elevation Storage
(feet) (cubic-feet) (feet) (cubic-feet)
589.50 0 592.35 16,957
589.55 214 592.40 17,330
589.60 432 592.45 17,705
589.65 652 592.50 18,082
589.70 876 592.55 18,461
589.75 1,103 592.60 18,842
589.80 1,333 592.65 19,225
589.85 1,566 592.70 19,610
589.90 1,802 592.75 19,999
589.95 2,041 592.80 20,390
590.00 2,284 592.85 20,784
590.05 2,529 592.90 21,181
590.10 2,777 592.95 21,581
590.15 3,027 593.00 21,983
590.20 3,280 593.05 22,389
590.25 3,536 593.10 22,798
590.30 3,793 593.15 23,210
590.35 4,054 593.20 23,626
590.40 4,316 593.25 24,045
590.45 4,582 593.30 24,467
590.50 4,850 593.35 24,892
590.55 5,120 593.40 25,321
590.60 5,394 593.45 25,753
590.65 5,671 593.50 26,188
590.70 5,950 593.55 26,626
590.75 6,233 593.60 27,068
590.80 6,518 593.65 27,513
590.85 6,806 593.70 27,961
590.90 7,098 593.75 28,413
590.95 7,393 593.80 28,868
591.00 7,691 593.85 29,326
591.05 7,993 593.90 29,787
591.10 8,298
591.15 8,607
591.20 8,920
591.25 9,236
591.30 9,557
591.35 9,881
591.40 10,209
591.45 10,540
591.50 10,876
591.55 11,215
591.60 11,557
591.65 11,903
591.70 12,251
591.75 12,603
591.80 12,957
591.85 13,313
591.90 13,671
591.95 14,030
592.00 14,391
592.05 14,754
592.10 15,118
592.15 15,483
592.20 15,849
592.25 16,216
592.30 16,586

ENGINEERINGOAK
50YR-24HR STORM EVENT
HYDROCAD OUTPUT(POND ON L YJ
September 21, 2020

Pet Suites Harrisburg SWM Type 1124-hr 50yr-24hr Rainfall=6.80"
Prepared by {enter your company name here} Printed 9/21/2020
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 2
Summary for Pond 8P: WET POND
[82] Warning: Early inflow requires earlier time span
Inflow Area = 2.700 ac, 74.81% Impervious, Inflow Depth > 5.80" for 50yr-24hr event
Inflow = 25.46 cfs @ 11.95 hrs, Volume= 1.306 af
Outflow = 13.69 cfs @ 12.04 hrs, Volume= 1.305 af, Atten= 46%, Lag= 5.5 min
Primary = 13.69 cfs @ 12.04 hrs, Volume= 1.305 af
Secondary= 0.00 cfs @ 5.00 hrs, Volume= 0.000 af
Routing by Dyn-Stor-Ind method, Time Span= 5.00-120.00 hrs, dt= 0.05 hrs
Peak Elev= 592.51' @ 12.04 hrs Surf.Area= 8,144 sf Storage= 19,228 cf
Plug-Flow detention time= 242.4 min calculated for 1.305 af(100% of inflow)
Center-of-Mass det. time= 241.6 min ( 1,015.5 - 773.9 )
Volume Invert Avail.Storage Storage Description
#1 589.50' 32,284 cf Custom Stage Data (Prismatic) Listed below (Recalc)
#2 590.39' 107 cf 18.0" Round RCP_Round 18"
L= 60.3' S= 0.0050 '/'
#3 590.69' 88 cf 15.0" Round RCP_Round 15"
L= 72.0' S= 0.0050 '/'
#4 591.15' 67 cf 15.0" Round RCP_Round 15"
L= 54.3' S= 0.0050 '/'
#5 590.79' 46 cf 12.0" Round 12" HDPE
L= 59.1' S= 0.0050 '/'
#6 591.09' 107 cf 12.0" Round 12" HDPE
L= 136.8' S= 0.0050 '/'
32,699 cf Total Available Storage
Elevation Surf.Area Inc.Store Cum.Store
(feet) (sq-ft) (cubic-feet) (cubic-feet)
589.50 4,265 0 0
590.00 5,087 2,338 2,338
591.00 6,223 5,655 7,993
592.00 7,436 6,830 14,823
593.00 8,715 8,076 22,898
594.00 10,057 9,386 32,284
Device Routing Invert Outlet Devices
#1 Device 2 589.50' 2.0"Vert. 2" Orifice C= 0.600
#2 Primary 588.75' 24.0" Round Culvert
L= 20.0' RCP, rounded edge headwall, Ke= 0.100
Inlet/ Outlet Invert= 588.75' / 588.65' S= 0.0050 '/' Cc= 0.900
n= 0.012, Flow Area= 3.14 sf
#3 Device 2 593.00' 48.0" x 48.0" Horiz. TOP of OS X 4.00 C= 0.600
Limited to weir flow at low heads
#4 Secondary 593.50' 10.0' long x 6.0' breadth Emergency Spillway
Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80
2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50
Coef. (English) 2.37 2.51 2.70 2.68 2.68 2.67 2.65 2.65 2.65
2.65 2.66 2.66 2.67 2.69 2.72 2.76 2.83
#5 Device 2 591.00' 15.0"W x 6.0" H Vert. Orifice/Grate X 4.00 C= 0.600

Pet Suites Harrisburg SWM Type II 24-hr 50yr-24hr Rainfall=6.80"
Prepared by {enter your company name here} Printed 9/21/2020
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 3
Primary OutFlow Max=13.64 cfs @ 12.04 hrs HW=592.50' (Free Discharge)
Li=Culvert (Passes 13.64 cfs of 29.97 cfs potential flow)
—1=2" Orifice (Orifice Controls 0.18 cfs © 8.23 fps)
—3=TOP of OS ( Controls 0.00 cfs)
—5=Orifice/Grate (Orifice Controls 13.46 cfs @ 5.38 fps)
Secondary OutFlow Max=0.00 cfs © 5.00 hrs HW=589.50' (Free Discharge)
4-4=Emergency Spillway ( Controls 0.00 cfs)
Pond 8P: WET POND
Hydrograph
•
❑Inflow
•;l 25.46 cfs I • Outflow
a�2... ❑Primar 7 r
flow Art � .7 ` 0 ad ❑Secondary
I
28-
26= :: .:. Peak..Elev=5g2...81'
Storage=22_
1g,228. c#.......
18 13.69cfs
16_ ' 13.69 cfs
•
•
3 14=
o -
LL 12
10
:.
6=`
I 0.00 cfs
0
5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120
Time (hours)

Pet Suites Harrisburg SWM Type 1124-hr 50yr-24hr Rainfall=6.80"
Prepared by {enter your company name here} Printed 9/21/2020
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 4
Stage-Discharge for Pond 8P: WET POND
Elevation Discharge Primary Secondary Elevation Discharge Primary Secondary
(feet) (cfs) (cfs) (cfs) (feet) (cfs) (cfs) (cfs)
589.50 0.00 0.00 0.00 592.35 12.77 12.77 0.00
589.55 0.00 0.00 0.00 592.40 13.06 13.06 0.00
589.60 0.01 0.01 0.00 592.45 13.34 13.34 0.00
589.65 0.03 0.03 0.00 592.50 13.62 13.62 0.00
589.70 0.04 0.04 0.00 592.55 13.88 13.88 0.00
589.75 0.04 0.04 0.00 592.60 14.15 14.15 0.00
589.80 0.05 0.05 0.00 592.65 14.41 14.41 0.00
589.85 0.05 0.05 0.00 592.70 14.66 14.66 0.00
589.90 0.06 0.06 0.00 592.75 14.91 14.91 0.00
589.95 0.06 0.06 0.00 592.80 15.16 15.16 0.00
590.00 0.07 0.07 0.00 592.85 15.40 15.40 0.00
590.05 0.07 0.07 0.00 592.90 15.64 15.64 0.00
590.10 0.08 0.08 0.00 592.95 15.87 15.87 0.00
590.15 0.08 0.08 0.00 593.00 16.10 16.10 0.00
590.20 0.08 0.08 0.00 593.05 18.67 18.67 0.00
590.25 0.09 0.09 0.00 593.10 23.18 23.18 0.00
590.30 0.09 0.09 0.00 593.15 28.94 28.94 0.00
590.35 0.09 0.09 0.00 593.20 35.14 35.14 0.00
590.40 0.09 0.09 0.00 593.25 35.49 35.49 0.00
590.45 0.10 0.10 0.00 593.30 35.82 35.82 0.00
590.50 0.10 0.10 0.00 593.35 36.16 36.16 0.00
590.55 0.10 0.10 0.00 593.40 36.49 36.49 0.00
590.60 0.11 0.11 0.00 593.45 36.82 36.82 0.00
590.65 0.11 0.11 0.00 593.50 37.15 37.15 0.00
590.70 0.11 0.11 0.00 593.55 37.74 37.48 0.26
590.75 0.11 0.11 0.00 593.60 38.55 37.80 0.75
590.80 0.12 0.12 0.00 593.65 39.49 38.12 1.38
590.85 0.12 0.12 0.00 593.70 40.55 38.43 2.12
590.90 0.12 0.12 0.00 593.75 41.75 38.75 3.01
590.95 0.12 0.12 0.00 593.80 43.07 39.06 4.01
591.00 0.13 0.13 0.00 593.85 44.49 39.37 5.12
591.05 0.31 0.31 0.00 593.90 46.02 39.67 6.35
591.10 0.64 0.64 0.00 593.95 47.70 39.98 7.72
591.15 1.06 1.06 0.00 594.00 49.49 40.28 9.21
591.20 1.57 1.57 0.00
591.25 2.14 2.14 0.00
591.30 2.77 2.77 0.00
591.35 3.46 3.46 0.00
591.40 4.20 4.20 0.00
591.45 4.99 4.99 0.00
591.50 5.82 5.82 0.00
591.55 6.51 6.51 0.00
591.60 7.10 7.10 0.00
591.65 7.63 7.63 0.00
591.70 8.12 8.12 0.00
591.75 8.57 8.57 0.00
591.80 9.00 9.00 0.00
591.85 9.41 9.41 0.00
591.90 9.80 9.80 0.00
591.95 10.18 10.18 0.00
592.00 10.54 10.54 0.00
592.05 10.89 10.89 0.00
592.10 11.22 11.22 0.00
592.15 11.55 11.55 0.00
592.20 11.87 11.87 0.00
592.25 12.18 12.18 0.00
592.30 12.48 12.48 0.00

Pet Suites Harrisburg SWM Type 1124-hr 50yr-24hr Rainfall=6.80"
Prepared by {enter your company name here} Printed 9/21/2020
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 5
Stage-Area-Storage for Pond 8P: WET POND
Elevation Storage Elevation Storage
(feet) (cubic-feet) (feet) (cubic-feet)
589.50 0 592.35 17,901
589.55 215 592.40 18,302
589.60 435 592.45 18,705
589.65 658 592.50 19,110
589.70 886 592.55 19,518
589.75 1,118 592.60 19,928
589.80 1,353 592.65 20,341
589.85 1,593 592.70 20,756
589.90 1,838 592.75 21,175
589.95 2,086 592.80 21,596
590.00 2,338 592.85 22,021
590.05 2,594 592.90 22,448
590.10 2,852 592.95 22,879
590.15 3,114 593.00 23,313
590.20 3,378 593.05 23,751
590.25 3,645 593.10 24,192
590.30 3,915 593.15 24,636
590.35 4,188 593.20 25,083
590.40 4,464 593.25 25,534
590.45 4,742 593.30 25,988
590.50 5,024 593.35 26,446
590.55 5,309 593.40 26,907
590.60 5,597 593.45 27,371
590.65 5,889 593.50 27,839
590.70 6,184 593.55 28,310
590.75 6,482 593.60 28,784
590.80 6,784 593.65 29,262
590.85 7,090 593.70 29,743
590.90 7,399 593.75 30,227
590.95 7,712 593.80 30,715
591.00 8,029 593.85 31,206
591.05 8,350 593.90 31,700
591.10 8,675 593.95 32,198
591.15 9,004 594.00 32,699
591.20 9,337
591.25 9,673
591.30 10,014
591.35 10,359
591.40 10,708
591.45 11,061
591.50 11,418
591.55 11,778
591.60 12,142
591.65 12,509
591.70 12,880
591.75 13,254
591.80 13,630
591.85 14,009
591.90 14,390
591.95 14,773
592.00 15,158
592.05 15,544
592.10 15,931
592.15 16,321
592.20 16,713
592.25 17,107
592.30 17,503

ENGINEERINGOAK
50YR-24HR STORM EVENT AS-BUILT
HYDROCAD OUTPUT(POND ONLY)
October 23, 2020

Pet Suites Harrisburg SWM Type 1124-hr 50yr-24hr Rainfall=6.80"
Prepared by OAK Engineering Printed 9/30/2022
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 1
Summary for Pond 12P: WET POND (as-built)
[82] Warning: Early inflow requires earlier time span
Inflow Area = 2.700 ac, 74.81% Impervious, Inflow Depth > 5.80" for 50yr-24hr event
Inflow = 25.46 cfs @ 11.95 hrs, Volume= 1.306 af
Outflow = 24.39 cfs @ 11.98 hrs, Volume= 1.306 af, Atten= 4%, Lag= 1.9 min
Primary = 15.17 cfs @ 11.98 hrs, Volume= 0.803 af
Secondary= 9.23 cfs @ 11.98 hrs, Volume= 0.503 af
Routing by Dyn-Stor-Ind method, Time Span= 5.00-120.00 hrs, dt= 0.05 hrs
Peak Elev= 593.09' @ 11.98 hrs Surf.Area= 8,204 sf Storage= 22,741 cf
Plug-Flow detention time= 838.9 min calculated for 1.306 af(100% of inflow)
Center-of-Mass det. time= 838.7 min ( 1,612.6 - 773.9 )
Volume Invert Avail.Storage Storage Description
#1 589.50' 29,561 cf Custom Stage Data (Prismatic) Listed below (Recalc)
#2 590.38' 104 cf 18.0" Round RCP_Round 18"
L= 59.1' S= 0.0066 '/'
#3 590.77' 89 cf 15.0" Round RCP_Round 15"
L= 72.7' S= 0.0050 '/'
#4 591.17' 66 cf 15.0" Round RCP_Round 15"
L= 53.9' S= 0.0059 '/'
#5 590.82' 45 cf 12.0" Round 15" CLASS IV
L= 56.8' S= 0.0069 '/'
#6 591.10' 108 cf 12.0" Round 12" HDPE
L= 137.2' S= 0.0043 '/'
29,973 cf Total Available Storage
Elevation Surf.Area Inc.Store Cum.Store
(feet) (sq-ft) (cubic-feet) (cubic-feet)
589.50 4,254 0 0
590.00 4,882 2,284 2,284
591.00 5,875 5,379 7,663
592.00 6,930 6,403 14,065
593.00 8,082 7,506 21,571
593.92 9,287 7,990 29,561
Device Routing Invert Outlet Devices
#1 Device 3 588.10' 0.040 cfs 4" perforated pipe
#2 Device 3 590.91' 2.0"Vert. 2" Orifice C= 0.600
#3 Primary 587.70' 24.0" Round Culvert
L= 19.9' RCP, rounded edge headwall, Ke= 0.100
Inlet/ Outlet Invert= 587.70' / 587.17' S= 0.0266 '/' Cc= 0.900
n= 0.012, Flow Area= 3.14 sf
#4 Device 3 592.92' 48.0" x 48.0" Horiz. TOP of OS X 4.00 C= 0.600
Limited to weir flow at low heads
#5 Secondary 592.66' 12.0' long x 20.0' breadth Emergency Spillway
Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60
Coef. (English) 2.68 2.70 2.70 2.64 2.63 2.64 2.64 2.63

Pet Suites Harrisburg SWM Type 1124-hr 50yr-24hr Rainfall=6.80"
Prepared by OAK Engineering Printed 9/30/2022
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 2
Primary OutFlow Max=14.20 cfs @ 11.98 hrs HW=593.08' (Free Discharge)
LI=Culvert (Passes 14.20 cfs of 43.19 cfs potential flow)
—1=4" perforated pipe (Constant Controls 0.04 cfs)
—2=2" Orifice (Orifice Controls 0.15 cfs @ 6.96 fps)
—4=TOP of OS (Weir Controls 14.01 cfs @ 1.33 fps)
Secondary OutFlow Max=8.97 cfs @ 11.98 hrs HW=593.08' (Free Discharge)
4-5=Emergency Spillway (Weir Controls 8.97 cfs @ 1.76 fps)
Pond 12P: WET POND (as-built)
Hydrograph
❑Inflow
;l 25.46 cfs I ` ❑Outflow
7 Inflow
n •
❑Primary
28_ •
24.39cfs flow Area=2.700 ac _El Secondary
26 ;,. Peak EIev=593.09'.......
24 . Storage-22,741: cf
22 -
20
18- '115.17cfs •
16 .
•
14 • .
0
10 I923cfs
6E
5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120
Time (hours)

Pet Suites Harrisburg SWM Type 1124-hr 50yr-24hr Rainfall=6.80"
Prepared by OAK Engineering Printed 9/30/2022
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 3
Pond 12P: WET POND (as-built)
Stage-Discharge
/ ❑EaI
ry
- /- of OS
593 �/7�
.a o Emergency Spillway
1.7
w 592
2"Orifice
W /fj
591
590 � •
0 10 20 30 40 50 60 70 80 90
Discharge (cfs)
Pond 12P: WET POND (as-built)
Stage-Area-Storage
❑Storage II
593
w
� 592=' a
�o
m
12"HDPE and 15'
591=' / i 15 CLASS IVY
_ 3
RCP Round 18"
590
Custom Stage Data /
0 5,000 10,000 15,000 20,000 25,000
Storage(cubic-feet)

Pet Suites Harrisburg SWM Type 1124-hr 50yr-24hr Rainfall=6.80"
Prepared by OAK Engineering Printed 9/30/2022
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 4
Hydrograph for Pond 12P: WET POND (as-built)
Time Inflow Storage Elevation Outflow Primary Secondary
(hours) (cfs) (cubic-feet) (feet) (cfs) (cfs) (cfs)
5.00 0.12 7 589.50 0.04 0.04 0.00
7.50 0.24 1,252 589.78 0.04 0.04 0.00
10.00 0.57 4,277 590.39 0.04 0.04 0.00
12.50 1.89 20,592 592.83 2.35 0.18 2.17
15.00 0.56 19,717 592.71 0.58 0.18 0.40
17.50 0.35 19,552 592.69 0.37 0.18 0.19
20.00 0.24 19,441 592.68 0.25 0.18 0.08
22.50 0.22 19,395 592.67 0.22 0.18 0.04
25.00 0.00 18,791 592.59 0.17 0.17 0.00
27.50 0.00 17,273 592.39 0.16 0.16 0.00
30.00 0.00 15,835 592.20 0.16 0.16 0.00
32.50 0.00 14,479 592.01 0.15 0.15 0.00
35.00 0.00 13,208 591.84 0.14 0.14 0.00
37.50 0.00 12,025 591.67 0.13 0.13 0.00
40.00 0.00 10,937 591.51 0.12 0.12 0.00
42.50 0.00 9,950 591.36 0.10 0.10 0.00
45.00 0.00 9,075 591.22 0.09 0.09 0.00
47.50 0.00 8,328 591.10 0.08 0.08 0.00
50.00 0.00 7,741 591.01 0.05 0.05 0.00
52.50 0.00 7,321 590.94 0.04 0.04 0.00
55.00 0.00 6,959 590.88 0.04 0.04 0.00
57.50 0.00 6,599 590.81 0.04 0.04 0.00
60.00 0.00 6,239 590.75 0.04 0.04 0.00
62.50 0.00 5,879 590.69 0.04 0.04 0.00
65.00 0.00 5,519 590.62 0.04 0.04 0.00
67.50 0.00 5,159 590.56 0.04 0.04 0.00
70.00 0.00 4,799 590.49 0.04 0.04 0.00
72.50 0.00 4,439 590.42 0.04 0.04 0.00
75.00 0.00 4,079 590.35 0.04 0.04 0.00
77.50 0.00 3,719 590.29 0.04 0.04 0.00
80.00 0.00 3,359 590.22 0.04 0.04 0.00
82.50 0.00 2,999 590.14 0.04 0.04 0.00
85.00 0.00 2,639 590.07 0.04 0.04 0.00
87.50 0.00 2,279 590.00 0.04 0.04 0.00
90.00 0.00 1,919 589.92 0.04 0.04 0.00
92.50 0.00 1,559 589.85 0.04 0.04 0.00
95.00 0.00 1,199 589.77 0.04 0.04 0.00
97.50 0.00 839 589.69 0.04 0.04 0.00
100.00 0.00 479 589.61 0.04 0.04 0.00
102.50 0.00 119 589.53 0.04 0.04 0.00
105.00 0.00 0 589.50 0.00 0.00 0.00
107.50 0.00 0 589.50 0.00 0.00 0.00
110.00 0.00 0 589.50 0.00 0.00 0.00
112.50 0.00 0 589.50 0.00 0.00 0.00
115.00 0.00 0 589.50 0.00 0.00 0.00
117.50 0.00 0 589.50 0.00 0.00 0.00
120.00 0.00 0 589.50 0.00 0.00 0.00

Pet Suites Harrisburg SWM Type 1124-hr 50yr-24hr Rainfall=6.80"
Prepared by OAK Engineering Printed 9/30/2022
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 5
Stage-Discharge for Pond 12P: WET POND (as-built)
Elevation Discharge Primary Secondary Elevation Discharge Primary Secondary
(feet) (cfs) (cfs) (cfs) (feet) (cfs) (cfs) (cfs)
589.50 0.00 0.00 0.00 592.35 0.16 0.16 0.00
589.55 0.04 0.04 0.00 592.40 0.16 0.16 0.00
589.60 0.04 0.04 0.00 592.45 0.17 0.17 0.00
589.65 0.04 0.04 0.00 592.50 0.17 0.17 0.00
589.70 0.04 0.04 0.00 592.55 0.17 0.17 0.00
589.75 0.04 0.04 0.00 592.60 0.17 0.17 0.00
589.80 0.04 0.04 0.00 592.65 0.18 0.18 0.00
589.85 0.04 0.04 0.00 592.70 0.43 0.18 0.26
589.90 0.04 0.04 0.00 592.75 1.05 0.18 0.87
589.95 0.04 0.04 0.00 592.80 1.87 0.18 1.68
590.00 0.04 0.04 0.00 592.85 2.85 0.18 2.66
590.05 0.04 0.04 0.00 592.90 3.97 0.19 3.79
590.10 0.04 0.04 0.00 592.95 6.31 1.27 5.04
590.15 0.04 0.04 0.00 593.00 11.33 4.92 6.41
590.20 0.04 0.04 0.00 593.05 17.89 10.00 7.89
590.25 0.04 0.04 0.00 593.10 25.63 16.17 9.46
590.30 0.04 0.04 0.00 593.15 34.39 23.28 11.11
590.35 0.04 0.04 0.00 593.20 44.06 31.20 12.86
590.40 0.04 0.04 0.00 593.25 54.55 39.87 14.68
590.45 0.04 0.04 0.00 593.30 60.76 44.24 16.52
590.50 0.04 0.04 0.00 593.35 62.87 44.48 18.38
590.55 0.04 0.04 0.00 593.40 65.02 44.72 20.30
590.60 0.04 0.04 0.00 593.45 67.23 44.96 22.27
590.65 0.04 0.04 0.00 593.50 69.56 45.19 24.37
590.70 0.04 0.04 0.00 593.55 71.98 45.43 26.55
590.75 0.04 0.04 0.00 593.60 74.46 45.66 28.80
590.80 0.04 0.04 0.00 593.65 76.99 45.89 31.09
590.85 0.04 0.04 0.00 593.70 79.62 46.12 33.50
590.90 0.04 0.04 0.00 593.75 82.33 46.35 35.98
590.95 0.04 0.04 0.00 593.80 85.10 46.58 38.52
591.00 0.05 0.05 0.00 593.85 87.93 46.81 41.12
591.05 0.06 0.06 0.00 593.90 90.78 47.04 43.74
591.10 0.07 0.07 0.00
591.15 0.08 0.08 0.00
591.20 0.09 0.09 0.00
591.25 0.09 0.09 0.00
591.30 0.10 0.10 0.00
591.35 0.10 0.10 0.00
591.40 0.11 0.11 0.00
591.45 0.11 0.11 0.00
591.50 0.11 0.11 0.00
591.55 0.12 0.12 0.00
591.60 0.12 0.12 0.00
591.65 0.13 0.13 0.00
591.70 0.13 0.13 0.00
591.75 0.13 0.13 0.00
591.80 0.13 0.13 0.00
591.85 0.14 0.14 0.00
591.90 0.14 0.14 0.00
591.95 0.14 0.14 0.00
592.00 0.15 0.15 0.00
592.05 0.15 0.15 0.00
592.10 0.15 0.15 0.00
592.15 0.15 0.15 0.00
592.20 0.16 0.16 0.00
592.25 0.16 0.16 0.00
592.30 0.16 0.16 0.00

Pet Suites Harrisburg SWM Type 1124-hr 50yr-24hr Rainfall=6.80"
Prepared by OAK Engineering Printed 9/30/2022
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 6
Stage-Area-Storage for Pond 12P: WET POND (as-built)
Elevation Storage Elevation Storage
(feet) (cubic-feet) (feet) (cubic-feet)
589.50 0 592.35 16,957
589.55 214 592.40 17,330
589.60 432 592.45 17,705
589.65 652 592.50 18,082
589.70 876 592.55 18,461
589.75 1,103 592.60 18,842
589.80 1,333 592.65 19,225
589.85 1,566 592.70 19,610
589.90 1,802 592.75 19,999
589.95 2,041 592.80 20,390
590.00 2,284 592.85 20,784
590.05 2,529 592.90 21,181
590.10 2,777 592.95 21,581
590.15 3,027 593.00 21,983
590.20 3,280 593.05 22,389
590.25 3,536 593.10 22,798
590.30 3,793 593.15 23,210
590.35 4,054 593.20 23,626
590.40 4,316 593.25 24,045
590.45 4,582 593.30 24,467
590.50 4,850 593.35 24,892
590.55 5,120 593.40 25,321
590.60 5,394 593.45 25,753
590.65 5,671 593.50 26,188
590.70 5,950 593.55 26,626
590.75 6,233 593.60 27,068
590.80 6,518 593.65 27,513
590.85 6,806 593.70 27,961
590.90 7,098 593.75 28,413
590.95 7,393 593.80 28,868
591.00 7,691 593.85 29,326
591.05 7,993 593.90 29,787
591.10 8,298
591.15 8,607
591.20 8,920
591.25 9,236
591.30 9,557
591.35 9,881
591.40 10,209
591.45 10,540
591.50 10,876
591.55 11,215
591.60 11,557
591.65 11,903
591.70 12,251
591.75 12,603
591.80 12,957
591.85 13,313
591.90 13,671
591.95 14,030
592.00 14,391
592.05 14,754
592.10 15,118
592.15 15,483
592.20 15,849
592.25 16,216
592.30 16,586

ENGINEERINGOAK
100YR-24HR STORM EVENT
HYDROCAD OUTPUT(POND ONLY)
September 21, 2020

Pet Suites Harrisburg SWM Type 11 24-hr 100yr-24hr Rainfall=7.60"
Prepared by {enter your company name here} Printed 9/21/2020
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 2
Summary for Pond 8P: WET POND
[82] Warning: Early inflow requires earlier time span
Inflow Area = 2.700 ac, 74.81% Impervious, Inflow Depth > 6.57" for 100yr-24hr event
Inflow = 28.66 cfs @ 11.95 hrs, Volume= 1.479 af
Outflow = 14.83 cfs @ 12.05 hrs, Volume= 1.478 af, Atten= 48%, Lag= 5.7 min
Primary = 14.83 cfs @ 12.05 hrs, Volume= 1.478 af
Secondary= 0.00 cfs @ 5.00 hrs, Volume= 0.000 af
Routing by Dyn-Stor-Ind method, Time Span= 5.00-120.00 hrs, dt= 0.05 hrs
Peak Elev= 592.73' @ 12.05 hrs Surf.Area= 8,377 sf Storage= 21,039 cf
Plug-Flow detention time= 218.9 min calculated for 1.478 of(100% of inflow)
Center-of-Mass det. time= 218.1 min ( 990.0 - 771.8 )
Volume Invert Avail.Storage Storage Description
#1 589.50' 32,284 cf Custom Stage Data (Prismatic) Listed below (Recalc)
#2 590.39' 107 cf 18.0" Round RCP_Round 18"
L= 60.3' S= 0.0050 '/'
#3 590.69' 88 cf 15.0" Round RCP_Round 15"
L= 72.0' S= 0.0050 '/'
#4 591.15' 67 cf 15.0" Round RCP_Round 15"
L= 54.3' S= 0.0050 '/'
#5 590.79' 46 cf 12.0" Round 12" HDPE
L= 59.1' S= 0.0050 '/'
#6 591.09' 107 cf 12.0" Round 12" HDPE
L= 136.8' S= 0.0050 '/'
32,699 cf Total Available Storage
Elevation Surf.Area Inc.Store Cum.Store
(feet) (sq-ft) (cubic-feet) (cubic-feet)
589.50 4,265 0 0
590.00 5,087 2,338 2,338
591.00 6,223 5,655 7,993
592.00 7,436 6,830 14,823
593.00 8,715 8,076 22,898
594.00 10,057 9,386 32,284
Device Routing Invert Outlet Devices
#1 Device 2 589.50' 2.0"Vert. 2" Orifice C= 0.600
#2 Primary 588.75' 24.0" Round Culvert
L= 20.0' RCP, rounded edge headwall, Ke= 0.100
Inlet/ Outlet Invert= 588.75' / 588.65' S= 0.0050 '/' Cc= 0.900
n= 0.012, Flow Area= 3.14 sf
#3 Device 2 593.00' 48.0" x 48.0" Horiz. TOP of OS X 4.00 C= 0.600
Limited to weir flow at low heads
#4 Secondary 593.50' 10.0' long x 6.0' breadth Emergency Spillway
Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80
2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50
Coef. (English) 2.37 2.51 2.70 2.68 2.68 2.67 2.65 2.65 2.65
2.65 2.66 2.66 2.67 2.69 2.72 2.76 2.83
#5 Device 2 591.00' 15.0"W x 6.0" H Vert. Orifice/Grate X 4.00 C= 0.600

Pet Suites Harrisburg SWM Type II 24-hr 100yr-24hr Rainfall=7.60"
Prepared by {enter your company name here} Printed 9/21/2020
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 3
Primary OutFlow Max=14.80 cfs @ 12.05 hrs HW=592.73' (Free Discharge)
Li=Culvert (Passes 14.80 cfs of 31.72 cfs potential flow)
—1=2" Orifice (Orifice Controls 0.19 cfs © 8.54 fps)
—3=TOP of OS ( Controls 0.00 cfs)
—5=Orifice/Grate (Orifice Controls 14.61 cfs @ 5.84 fps)
Secondary OutFlow Max=0.00 cfs © 5.00 hrs HW=589.50' (Free Discharge)
4-4=Emergency Spillway ( Controls 0.00 cfs)
Pond 8P: WET POND
Hydrograph
❑Inflow
:
a a Outflow
4 I.:- n _2.•. ❑Se o nd ary
• .. fl�w..�4r..�a�. 700...a.0
30 : : : Peak Elev=592:73'
28
26 Storage=21,0 ...Cf
24 `
22
14.83 cfs
V 18 14.83 cfs s/
3 16 .
a 14
12 /
10 .
0.00 cfs
5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120
Time (hours)

Pet Suites Harrisburg SWM Type 11 24-hr 100yr-24hr Rainfall=7.60"
Prepared by {enter your company name here} Printed 9/21/2020
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 4
Stage-Discharge for Pond 8P: WET POND
Elevation Discharge Primary Secondary Elevation Discharge Primary Secondary
(feet) (cfs) (cfs) (cfs) (feet) (cfs) (cfs) (cfs)
589.50 0.00 0.00 0.00 592.35 12.77 12.77 0.00
589.55 0.00 0.00 0.00 592.40 13.06 13.06 0.00
589.60 0.01 0.01 0.00 592.45 13.34 13.34 0.00
589.65 0.03 0.03 0.00 592.50 13.62 13.62 0.00
589.70 0.04 0.04 0.00 592.55 13.88 13.88 0.00
589.75 0.04 0.04 0.00 592.60 14.15 14.15 0.00
589.80 0.05 0.05 0.00 592.65 14.41 14.41 0.00
589.85 0.05 0.05 0.00 592.70 14.66 14.66 0.00
589.90 0.06 0.06 0.00 592.75 14.91 14.91 0.00
589.95 0.06 0.06 0.00 592.80 15.16 15.16 0.00
590.00 0.07 0.07 0.00 592.85 15.40 15.40 0.00
590.05 0.07 0.07 0.00 592.90 15.64 15.64 0.00
590.10 0.08 0.08 0.00 592.95 15.87 15.87 0.00
590.15 0.08 0.08 0.00 593.00 16.10 16.10 0.00
590.20 0.08 0.08 0.00 593.05 18.67 18.67 0.00
590.25 0.09 0.09 0.00 593.10 23.18 23.18 0.00
590.30 0.09 0.09 0.00 593.15 28.94 28.94 0.00
590.35 0.09 0.09 0.00 593.20 35.14 35.14 0.00
590.40 0.09 0.09 0.00 593.25 35.49 35.49 0.00
590.45 0.10 0.10 0.00 593.30 35.82 35.82 0.00
590.50 0.10 0.10 0.00 593.35 36.16 36.16 0.00
590.55 0.10 0.10 0.00 593.40 36.49 36.49 0.00
590.60 0.11 0.11 0.00 593.45 36.82 36.82 0.00
590.65 0.11 0.11 0.00 593.50 37.15 37.15 0.00
590.70 0.11 0.11 0.00 593.55 37.74 37.48 0.26
590.75 0.11 0.11 0.00 593.60 38.55 37.80 0.75
590.80 0.12 0.12 0.00 593.65 39.49 38.12 1.38
590.85 0.12 0.12 0.00 593.70 40.55 38.43 2.12
590.90 0.12 0.12 0.00 593.75 41.75 38.75 3.01
590.95 0.12 0.12 0.00 593.80 43.07 39.06 4.01
591.00 0.13 0.13 0.00 593.85 44.49 39.37 5.12
591.05 0.31 0.31 0.00 593.90 46.02 39.67 6.35
591.10 0.64 0.64 0.00 593.95 47.70 39.98 7.72
591.15 1.06 1.06 0.00 594.00 49.49 40.28 9.21
591.20 1.57 1.57 0.00
591.25 2.14 2.14 0.00
591.30 2.77 2.77 0.00
591.35 3.46 3.46 0.00
591.40 4.20 4.20 0.00
591.45 4.99 4.99 0.00
591.50 5.82 5.82 0.00
591.55 6.51 6.51 0.00
591.60 7.10 7.10 0.00
591.65 7.63 7.63 0.00
591.70 8.12 8.12 0.00
591.75 8.57 8.57 0.00
591.80 9.00 9.00 0.00
591.85 9.41 9.41 0.00
591.90 9.80 9.80 0.00
591.95 10.18 10.18 0.00
592.00 10.54 10.54 0.00
592.05 10.89 10.89 0.00
592.10 11.22 11.22 0.00
592.15 11.55 11.55 0.00
592.20 11.87 11.87 0.00
592.25 12.18 12.18 0.00
592.30 12.48 12.48 0.00

Pet Suites Harrisburg SWM Type 11 24-hr 100yr-24hr Rainfall=7.60"
Prepared by {enter your company name here} Printed 9/21/2020
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 5
Stage-Area-Storage for Pond 8P: WET POND
Elevation Storage Elevation Storage
(feet) (cubic-feet) (feet) (cubic-feet)
589.50 0 592.35 17,901
589.55 215 592.40 18,302
589.60 435 592.45 18,705
589.65 658 592.50 19,110
589.70 886 592.55 19,518
589.75 1,118 592.60 19,928
589.80 1,353 592.65 20,341
589.85 1,593 592.70 20,756
589.90 1,838 592.75 21,175
589.95 2,086 592.80 21,596
590.00 2,338 592.85 22,021
590.05 2,594 592.90 22,448
590.10 2,852 592.95 22,879
590.15 3,114 593.00 23,313
590.20 3,378 593.05 23,751
590.25 3,645 593.10 24,192
590.30 3,915 593.15 24,636
590.35 4,188 593.20 25,083
590.40 4,464 593.25 25,534
590.45 4,742 593.30 25,988
590.50 5,024 593.35 26,446
590.55 5,309 593.40 26,907
590.60 5,597 593.45 27,371
590.65 5,889 593.50 27,839
590.70 6,184 593.55 28,310
590.75 6,482 593.60 28,784
590.80 6,784 593.65 29,262
590.85 7,090 593.70 29,743
590.90 7,399 593.75 30,227
590.95 7,712 593.80 30,715
591.00 8,029 593.85 31,206
591.05 8,350 593.90 31,700
591.10 8,675 593.95 32,198
591.15 9,004 594.00 32,699
591.20 9,337
591.25 9,673
591.30 10,014
591.35 10,359
591.40 10,708
591.45 11,061
591.50 11,418
591.55 11,778
591.60 12,142
591.65 12,509
591.70 12,880
591.75 13,254
591.80 13,630
591.85 14,009
591.90 14,390
591.95 14,773
592.00 15,158
592.05 15,544
592.10 15,931
592.15 16,321
592.20 16,713
592.25 17,107
592.30 17,503

ENGINEERINGOAK
100YR-24HR STORM EVENT AS-BUILT
HYDROCAD OUTPUT(POND ONLY)
October 23, 2020

Pet Suites Harrisburg SWM Type 11 24-hr 100yr-24hr Rainfall=7.60"
Prepared by OAK Engineering Printed 9/30/2022
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 1
Summary for Pond 12P: WET POND (as-built)
[82] Warning: Early inflow requires earlier time span
[90] Warning: Qout>Qin may require smaller dt or Finer Routing
Inflow Area = 2.700 ac, 74.81% Impervious, Inflow Depth > 6.57" for 100yr-24hr event
Inflow = 28.66 cfs @ 11.95 hrs, Volume= 1.479 af
Outflow = 29.44 cfs © 11.96 hrs, Volume= 1.479 af, Atten= 0%, Lag= 0.8 min
Primary = 19.24 cfs @ 11.96 hrs, Volume= 0.880 af
Secondary= 10.20 cfs @ 11.97 hrs, Volume= 0.599 af
Routing by Dyn-Stor-Ind method, Time Span= 5.00-120.00 hrs, dt= 0.05 hrs
Peak Elev= 593.12' @ 11.97 hrs Surf.Area= 8,243 sf Storage= 22,988 cf
Plug-Flow detention time= 746.4 min calculated for 1.479 af(100% of inflow)
Center-of-Mass det. time= 746.1 min ( 1,517.9 - 771.8 )
Volume Invert Avail.Storage Storage Description
#1 589.50' 29,561 cf Custom Stage Data (Prismatic) Listed below (Recalc)
#2 590.38' 104 cf 18.0" Round RCP_Round 18"
L= 59.1' S= 0.0066 '/'
#3 590.77' 89 cf 15.0" Round RCP_Round 15"
L= 72.7' S= 0.0050 '/'
#4 591.17' 66 cf 15.0" Round RCP_Round 15"
L= 53.9' S= 0.0059 '/'
#5 590.82' 45 cf 12.0" Round 15" CLASS IV
L= 56.8' S= 0.0069 '/'
#6 591.10' 108 cf 12.0" Round 12" HDPE
L= 137.2' S= 0.0043 '/'
29,973 cf Total Available Storage
Elevation Surf.Area Inc.Store Cum.Store
(feet) (sq-ft) (cubic-feet) (cubic-feet)
589.50 4,254 0 0
590.00 4,882 2,284 2,284
591.00 5,875 5,379 7,663
592.00 6,930 6,403 14,065
593.00 8,082 7,506 21,571
593.92 9,287 7,990 29,561
Device Routing Invert Outlet Devices
#1 Device 3 588.10' 0.040 cfs 4" perforated pipe
#2 Device 3 590.91' 2.0"Vert. 2" Orifice C= 0.600
#3 Primary 587.70' 24.0" Round Culvert
L= 19.9' RCP, rounded edge headwall, Ke= 0.100
Inlet/ Outlet Invert= 587.70' / 587.17' S= 0.0266 '/' Cc= 0.900
n= 0.012, Flow Area= 3.14 sf
#4 Device 3 592.92' 48.0" x 48.0" Horiz. TOP of OS X 4.00 C= 0.600
Limited to weir flow at low heads
#5 Secondary 592.66' 12.0' long x 20.0' breadth Emergency Spillway
Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60
Coef. (English) 2.68 2.70 2.70 2.64 2.63 2.64 2.64 2.63

Pet Suites Harrisburg SWM Type 11 24-hr 100yr-24hr Rainfall=7.60"
Prepared by OAK Engineering Printed 9/30/2022
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 2
Primary OutFlow Max=17.95 cfs @ 11.96 hrs HW=593.11' (Free Discharge)
L1=Culvert (Passes 17.95 cfs of 43.33 cfs potential flow)
—1=4" perforated pipe (Constant Controls 0.04 cfs)
—2=2" Orifice (Orifice Controls 0.15 cfs @ 7.01 fps)
—4=TOP of OS (Weir Controls 17.75 cfs @ 1.44 fps)
Secondary OutFlow Max=9.88 cfs @ 11.97 hrs HW=593.11' (Free Discharge)
L5=Emergency Spillway (Weir Controls 9.88 cfs @ 1.82 fps)
Pond 12P: WET POND (as-built)
Hydrograph
4cfsifs ... ❑Inflow
Outflow
1f1CIWAr a=2.700 a4 ❑Sermary
a
ry
:30 Peak Elev=593:12'
26= ':: Storage=2.2,988....cf
22=' 1 1s.za as I : : :
20�
18
3 16i .
LL 14 :' .
12 ' 110.20 cfs i .
10
't j
0
5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120
Time (hours)

Pet Suites Harrisburg SWM Type 11 24-hr 100yr-24hr Rainfall=7.60"
Prepared by OAK Engineering Printed 9/30/2022
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 3
Pond 12P: WET POND (as-built)
Stage-Discharge
/ ❑EaI
ry
-
593 �/7�
.a o Emergency Spillway
1.7
w 592
2"Orifice
W /fj
591
590 � •
0 10 20 30 40 50 60 70 80 90
Discharge (cfs)
Pond 12P: WET POND (as-built)
Stage-Area-Storage
❑Storage II
593
w
� 592=' a
�o
12"HDPE and 15'
591=' / i 15 CLASS IVY
_ 3
RCP Round 18"
590
Custom Stage Data /
0 5,000 10,000 15,000 20,000 25,000
Storage(cubic-feet)

Pet Suites Harrisburg SWM Type 11 24-hr 100yr-24hr Rainfall=7.60"
Prepared by OAK Engineering Printed 9/30/2022
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 4
Hydrograph for Pond 12P: WET POND (as-built)
Time Inflow Storage Elevation Outflow Primary Secondary
(hours) (cfs) (cubic-feet) (feet) (cfs) (cfs) (cfs)
5.00 0.15 9 589.50 0.04 0.04 0.00
7.50 0.29 1,601 589.86 0.04 0.04 0.00
10.00 0.66 5,203 590.57 0.04 0.04 0.00
12.50 2.12 20,694 592.84 2.61 0.18 2.43
15.00 0.62 19,764 592.72 0.65 0.18 0.47
17.50 0.40 19,589 592.70 0.41 0.18 0.23
20.00 0.27 19,474 592.68 0.28 0.18 0.11
22.50 0.24 19,429 592.68 0.24 0.18 0.07
25.00 0.00 18,819 592.60 0.17 0.17 0.00
27.50 0.00 17,301 592.40 0.16 0.16 0.00
30.00 0.00 15,861 592.20 0.16 0.16 0.00
32.50 0.00 14,503 592.02 0.15 0.15 0.00
35.00 0.00 13,230 591.84 0.14 0.14 0.00
37.50 0.00 12,046 591.67 0.13 0.13 0.00
40.00 0.00 10,956 591.51 0.12 0.12 0.00
42.50 0.00 9,967 591.36 0.10 0.10 0.00
45.00 0.00 9,090 591.23 0.09 0.09 0.00
47.50 0.00 8,340 591.11 0.08 0.08 0.00
50.00 0.00 7,750 591.01 0.05 0.05 0.00
52.50 0.00 7,328 590.94 0.04 0.04 0.00
55.00 0.00 6,966 590.88 0.04 0.04 0.00
57.50 0.00 6,606 590.82 0.04 0.04 0.00
60.00 0.00 6,246 590.75 0.04 0.04 0.00
62.50 0.00 5,886 590.69 0.04 0.04 0.00
65.00 0.00 5,526 590.62 0.04 0.04 0.00
67.50 0.00 5,166 590.56 0.04 0.04 0.00
70.00 0.00 4,806 590.49 0.04 0.04 0.00
72.50 0.00 4,446 590.42 0.04 0.04 0.00
75.00 0.00 4,086 590.36 0.04 0.04 0.00
77.50 0.00 3,726 590.29 0.04 0.04 0.00
80.00 0.00 3,366 590.22 0.04 0.04 0.00
82.50 0.00 3,006 590.15 0.04 0.04 0.00
85.00 0.00 2,646 590.07 0.04 0.04 0.00
87.50 0.00 2,286 590.00 0.04 0.04 0.00
90.00 0.00 1,926 589.93 0.04 0.04 0.00
92.50 0.00 1,566 589.85 0.04 0.04 0.00
95.00 0.00 1,206 589.77 0.04 0.04 0.00
97.50 0.00 846 589.69 0.04 0.04 0.00
100.00 0.00 486 589.61 0.04 0.04 0.00
102.50 0.00 126 589.53 0.04 0.04 0.00
105.00 0.00 0 589.50 0.00 0.00 0.00
107.50 0.00 0 589.50 0.00 0.00 0.00
110.00 0.00 0 589.50 0.00 0.00 0.00
112.50 0.00 0 589.50 0.00 0.00 0.00
115.00 0.00 0 589.50 0.00 0.00 0.00
117.50 0.00 0 589.50 0.00 0.00 0.00
120.00 0.00 0 589.50 0.00 0.00 0.00

Pet Suites Harrisburg SWM Type 11 24-hr 100yr-24hr Rainfall=7.60"
Prepared by OAK Engineering Printed 9/30/2022
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 5
Stage-Discharge for Pond 12P: WET POND (as-built)
Elevation Discharge Primary Secondary Elevation Discharge Primary Secondary
(feet) (cfs) (cfs) (cfs) (feet) (cfs) (cfs) (cfs)
589.50 0.00 0.00 0.00 592.35 0.16 0.16 0.00
589.55 0.04 0.04 0.00 592.40 0.16 0.16 0.00
589.60 0.04 0.04 0.00 592.45 0.17 0.17 0.00
589.65 0.04 0.04 0.00 592.50 0.17 0.17 0.00
589.70 0.04 0.04 0.00 592.55 0.17 0.17 0.00
589.75 0.04 0.04 0.00 592.60 0.17 0.17 0.00
589.80 0.04 0.04 0.00 592.65 0.18 0.18 0.00
589.85 0.04 0.04 0.00 592.70 0.43 0.18 0.26
589.90 0.04 0.04 0.00 592.75 1.05 0.18 0.87
589.95 0.04 0.04 0.00 592.80 1.87 0.18 1.68
590.00 0.04 0.04 0.00 592.85 2.85 0.18 2.66
590.05 0.04 0.04 0.00 592.90 3.97 0.19 3.79
590.10 0.04 0.04 0.00 592.95 6.31 1.27 5.04
590.15 0.04 0.04 0.00 593.00 11.33 4.92 6.41
590.20 0.04 0.04 0.00 593.05 17.89 10.00 7.89
590.25 0.04 0.04 0.00 593.10 25.63 16.17 9.46
590.30 0.04 0.04 0.00 593.15 34.39 23.28 11.11
590.35 0.04 0.04 0.00 593.20 44.06 31.20 12.86
590.40 0.04 0.04 0.00 593.25 54.55 39.87 14.68
590.45 0.04 0.04 0.00 593.30 60.76 44.24 16.52
590.50 0.04 0.04 0.00 593.35 62.87 44.48 18.38
590.55 0.04 0.04 0.00 593.40 65.02 44.72 20.30
590.60 0.04 0.04 0.00 593.45 67.23 44.96 22.27
590.65 0.04 0.04 0.00 593.50 69.56 45.19 24.37
590.70 0.04 0.04 0.00 593.55 71.98 45.43 26.55
590.75 0.04 0.04 0.00 593.60 74.46 45.66 28.80
590.80 0.04 0.04 0.00 593.65 76.99 45.89 31.09
590.85 0.04 0.04 0.00 593.70 79.62 46.12 33.50
590.90 0.04 0.04 0.00 593.75 82.33 46.35 35.98
590.95 0.04 0.04 0.00 593.80 85.10 46.58 38.52
591.00 0.05 0.05 0.00 593.85 87.93 46.81 41.12
591.05 0.06 0.06 0.00 593.90 90.78 47.04 43.74
591.10 0.07 0.07 0.00
591.15 0.08 0.08 0.00
591.20 0.09 0.09 0.00
591.25 0.09 0.09 0.00
591.30 0.10 0.10 0.00
591.35 0.10 0.10 0.00
591.40 0.11 0.11 0.00
591.45 0.11 0.11 0.00
591.50 0.11 0.11 0.00
591.55 0.12 0.12 0.00
591.60 0.12 0.12 0.00
591.65 0.13 0.13 0.00
591.70 0.13 0.13 0.00
591.75 0.13 0.13 0.00
591.80 0.13 0.13 0.00
591.85 0.14 0.14 0.00
591.90 0.14 0.14 0.00
591.95 0.14 0.14 0.00
592.00 0.15 0.15 0.00
592.05 0.15 0.15 0.00
592.10 0.15 0.15 0.00
592.15 0.15 0.15 0.00
592.20 0.16 0.16 0.00
592.25 0.16 0.16 0.00
592.30 0.16 0.16 0.00

Pet Suites Harrisburg SWM Type 11 24-hr 100yr-24hr Rainfall=7.60"
Prepared by OAK Engineering Printed 9/30/2022
HydroCAD® 10.00-20 s/n 10066 ©2017 HydroCAD Software Solutions LLC Page 6
Stage-Area-Storage for Pond 12P: WET POND (as-built)
Elevation Storage Elevation Storage
(feet) (cubic-feet) (feet) (cubic-feet)
589.50 0 592.35 16,957
589.55 214 592.40 17,330
589.60 432 592.45 17,705
589.65 652 592.50 18,082
589.70 876 592.55 18,461
589.75 1,103 592.60 18,842
589.80 1,333 592.65 19,225
589.85 1,566 592.70 19,610
589.90 1,802 592.75 19,999
589.95 2,041 592.80 20,390
590.00 2,284 592.85 20,784
590.05 2,529 592.90 21,181
590.10 2,777 592.95 21,581
590.15 3,027 593.00 21,983
590.20 3,280 593.05 22,389
590.25 3,536 593.10 22,798
590.30 3,793 593.15 23,210
590.35 4,054 593.20 23,626
590.40 4,316 593.25 24,045
590.45 4,582 593.30 24,467
590.50 4,850 593.35 24,892
590.55 5,120 593.40 25,321
590.60 5,394 593.45 25,753
590.65 5,671 593.50 26,188
590.70 5,950 593.55 26,626
590.75 6,233 593.60 27,068
590.80 6,518 593.65 27,513
590.85 6,806 593.70 27,961
590.90 7,098 593.75 28,413
590.95 7,393 593.80 28,868
591.00 7,691 593.85 29,326
591.05 7,993 593.90 29,787
591.10 8,298
591.15 8,607
591.20 8,920
591.25 9,236
591.30 9,557
591.35 9,881
591.40 10,209
591.45 10,540
591.50 10,876
591.55 11,215
591.60 11,557
591.65 11,903
591.70 12,251
591.75 12,603
591.80 12,957
591.85 13,313
591.90 13,671
591.95 14,030
592.00 14,391
592.05 14,754
592.10 15,118
592.15 15,483
592.20 15,849
592.25 16,216
592.30 16,586